SK TELECOM CO LTD — Annual Report 2010

Jun 30, 2011

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As filed with the Securities and Exchange Commission on June 30, 2011

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 20-F

(Mark One)
o	REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF
THE SECURITIES EXCHANGE ACT OF 1934
OR
þ	ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
	For the fiscal year ended
December 31,
2010
OR
o	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
OR
o	SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
Date of event requiring this
shell company report
For the transition period
from to

Commission file number 1-14418

SK Telecom Co., Ltd.

(Exact name of Registrant as specified in its charter)

SK Telecom Co., Ltd.

(Translation of Registrant’s name into English)

The Republic of Korea

(Jurisdiction of incorporation or organization)

SK T-Tower

11, Euljiro 2-Ga, Jung-gu, Seoul, Korea

(Address of principal executive offices)

Mr. Won Tuh Chung

11, Euljiro 2-Ga, Jung-gu, Seoul, Korea

Telephone No.: 82-2-6100-2114

Facsimile No.: 82-2-6100-7830

(Name, telephone, email and/or facsimile number and address of company contact person)

Securities registered or to be registered pursuant to Section 12(b) of the Act.

Title of Each Class	Name of Each Exchange on Which Registered
American Depositary Shares, each representing one-ninth of one share of Common Stock	New York Stock Exchange
Common Stock, par value W 500 per share	New York Stock Exchange*

• Not for trading, but only in connection with the registration of the American Depositary Shares.

Securities registered or to be registered pursuant to Section 12(g) of the Act. None

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act. None

Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report.

71,094,999 shares of common stock, par value W 500 per share (not including 9,650,712 shares of common stock held by the company as treasury shares)

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes þ No o

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. Yes o No þ

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes þ No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes o No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer þ Accelerated filer o Non-accelerated filer o

Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:

U.S. GAAP o IFRS o Other þ

Indicate by check mark which financial statement item the registrant has elected to follow. Item 17 o Item 18 þ

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No þ

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| CERTAIN DEFINED TERMS AND CONVENTIONS USED IN
THIS REPORT | | 1 |
| --- | --- | --- |
| FORWARD-LOOKING STATEMENTS | | 1 |
| PART I | | 3 |
| Item 1. | IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND
ADVISERS | 3 |
| Item 1.A. | Directors and Senior Management | 3 |
| Item 1.B. | Advisers | 3 |
| Item 1.C. | Auditor | 3 |
| Item 2. | OFFER STATISTICS AND EXPECTED TIMETABLE | 3 |
| Item 3. | KEY INFORMATION | 3 |
| Item 3.A. | Selected Financial Data | 3 |
| Item 3.B. | Capitalization and Indebtedness | 8 |
| Item 3.C. | Reasons for the Offer and Use of Proceeds | 8 |
| Item 3.D. | Risk Factors | 9 |
| Item 4. | INFORMATION ON THE COMPANY | 22 |
| Item 4.A. | History and Development of the Company | 22 |
| Item 4.B. | Business Overview | 25 |
| Item 4.C. | Organizational Structure | 50 |
| Item 4.D. | Property, Plants And Equipment | 51 |
| Item 4A. | UNRESOLVED STAFF COMMENTS | 51 |
| Item 5. | OPERATING AND FINANCIAL REVIEW AND PROSPECTS | 51 |
| Item 5.A. | Operating Results | 52 |
| Item 5.B. | Liquidity and Capital Resources | 61 |
| Item 5.C. | Research and Development | 72 |
| Item 5.D. | Trend Information | 73 |
| Item 5.E. | Off-Balance Sheet Arrangements | 73 |
| Item 5.F. | Tabular Disclosure of Contractual Obligations | 73 |
| Item 5.G. | Safe Harbor | 73 |
| Item 6. | DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES | 73 |
| Item 6.A. | Directors and Senior Management | 73 |
| Item 6.B. | Compensation | 75 |
| Item 6.C. | Board Practices | 75 |
| Item 6.D. | Employees | 76 |
| Item 6.E. | Share Ownership | 77 |
| Item 7. | MAJOR SHAREHOLDERS AND RELATED PARTY
TRANSACTIONS | 78 |
| Item 7.A. | Major Shareholders | 78 |
| Item 7.B. | Related Party Transactions | 79 |
| Item 7.C. | Interests of Experts and Counsel | 80 |
| Item 8. | FINANCIAL INFORMATION | 80 |
| Item 8.A. | Consolidated Statements and Other Financial
Information | 80 |
| Item 8.B. | Significant Changes | 83 |

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Item 9.	THE OFFER AND LISTING	83
Item 9.A.	Offering and Listing Details	83
Item 9.B.	Plan of Distribution	83
Item 9.C.	Markets	83
Item 9.D.	Selling Shareholders	90
Item 9.E.	Dilution	90
Item 9.F.	Expenses of the Issue	90
Item 10.	ADDITIONAL INFORMATION	90
Item 10.A.	Share Capital	90
Item 10.B.	Memorandum and Articles of Incorporation	90
Item 10.C.	Material Contracts	103
Item 10.D.	Exchange Controls	103
Item 10.E.	Taxation	107
Item 10.F.	Dividends and Paying Agents	111
Item 10.G.	Statements by Experts	111
Item 10.H.	Documents on Display	111
Item 10.I.	Subsidiary Information	112
Item 11.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT
MARKET RISK	112
Item 12.	DESCRIPTION OF SECURITIES OTHER THAN EQUITY
SECURITIES	113
Item 12.A.	Debt Securities	113
Item 12.B.	Warrants and Rights	113
Item 12.C.	Other Securities	113
Item 12.D.	American Depositary Shares	113
PART II		114
Item 13.	DEFAULTS, DIVIDEND ARREARAGES AND
DELINQUENCIES	114
Item 14.	MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY
HOLDERS AND USE OF PROCEEDS	114
Item 15.	CONTROLS AND PROCEDURES	114
Item 16.	[RESERVED]	115
Item 16A.	AUDIT COMMITTEE FINANCIAL EXPERT	115
Item 16B.	CODE OF ETHICS	116
Item 16C.	PRINCIPAL ACCOUNTANT FEES AND SERVICES	116
Item 16D.	EXEMPTIONS FROM THE LISTING STANDARDS FOR AUDIT
COMMITTEES	116
Item 16E.	PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND
AFFILIATED PURCHASERS	117
Item 16F.	CHANGE IN REGISTRANT’S CERTIFYING
ACCOUNTANT	117
Item 16G.	CORPORATE GOVERNANCE	117
PART III		118
Item 17.	FINANCIAL STATEMENTS	118
Item 18.	FINANCIAL STATEMENTS	118
Item 19.	EXHIBITS	119
EX-8.1
EX-12.1
EX-12.2
EX-13.1
EX-13.2
EX-15.1
EX-15.2
EX-15.3
EX-15.4

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CERTAIN DEFINED TERMS AND CONVENTIONS USED IN THIS REPORT

All references to “Korea” contained in this report shall mean The Republic of Korea. All references to the “Government” shall mean the government of The Republic of Korea. All references to “we”, “us”, “our” or the “Company” shall mean SK Telecom Co., Ltd. and, unless the context otherwise requires, its consolidated subsidiaries. References to “SK Telecom” shall mean SK Telecom Co., Ltd., but shall not include its consolidated subsidiaries. All references to “U.S.” shall mean the United States of America.

All references to “KHz” contained in this report shall mean kilohertz, a unit of frequency denoting one thousand cycles per second, used to measure band and bandwidth. All references to “MHz” shall mean megahertz, a unit of frequency denoting one million cycles per second. All references to “GHz” shall mean gigahertz, a unit of frequency denoting one billion cycles per second. All references to “Kbps” shall mean one thousand binary digits, or bits, of information per second. All references to “Mbps” shall mean one million bits of information per second. Any discrepancies in any table between totals and the sums of the amounts listed are due to rounding.

In this report, we refer to the latest generation technologies as “3G” technology, “3.5G” technology and “4G” technology. Second generation, or 2G, technology was designed primarily with voice communications in mind. On the other hand, 3G and 3.5G technologies are designed to transfer both voice data and non-voice, or multimedia, data, generally at faster transmission speeds than was previously possible. 4G technology is designed to transfer both voice data and non-voice data at faster transmission speeds than 3G or 3.5G technology.

All references to “Won”, “(Won)” or “ W ” in this report are to the currency of Korea, all references to “Dollars”, “$” or “US$” are to the currency of the United States of America and all references to “Yen” or “¥” are to the currency of Japan.

Pursuant to an amendment to the Government Organization Act, effective as of February 29, 2008, the Ministry of Information and Communication, or “MIC”, has become the Ministry of Knowledge Economy and functions formerly performed by the MIC are now performed separately by the Ministry of Knowledge Economy, the Ministry of Culture, Sports and Tourism, the Ministry of Public Administration and Security, and, particularly, the Korea Communications Commission, or the “KCC”. In this report, we refer to the MIC as the relevant governmental authority in connection with any approval granted or action taken by the MIC prior to such amendment to the Government Organization Act and to such other relevant governmental authority in connection with any approval granted or action taken by such other relevant governmental authority subsequent to such amendment.

Unless otherwise indicated, all financial information in this report is presented in accordance with Korean generally accepted accounting principles (“Korean GAAP”).

Unless otherwise indicated, translations of Won amounts into Dollars in this report were made at the noon buying rate in The City of New York for cable transfers in Won per US$1.00 as certified for customs purposes by the Federal Reserve Bank of New York (the “noon buying rate”) in effect on December 31, 2010, which was Won 1,130.6 to US$1.00. On June 24, 2011, the noon buying rate was Won 1,078.7 to US$1.00. See “Item 3.A. Selected Financial Data — Exchange Rates”.

FORWARD-LOOKING STATEMENTS

This report contains “forward-looking statements”, as defined in Section 27A of the U.S. Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the U.S. Securities Exchange Act of 1934, as amended, or the Exchange Act, that are based on our current expectations, assumptions, estimates and projections about our company and our industry. The forward-looking statements are subject to various risks and uncertainties. Generally, these forward-looking statements can be identified by the use of forward-looking terminology such as “anticipate”, “believe”, “considering”, “depends”, “estimate”, “expect”, “intend”, “plan”, “planning”, “planned”, “project” and similar expressions, or that certain events, actions or results “may”, “might”, “should” or “could” occur, be taken or be achieved.

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Forward-looking statements in this annual report include, but are not limited to, statements about the following:

| • | our ability to anticipate and respond to various competitive
factors affecting the wireless telecommunications industry,
including new services that may be introduced, changes in
consumer preferences, economic conditions and discount pricing
strategies by competitors; |
| --- | --- |
| • | our implementation of high-speed downlink packet access, or
HSDPA, technology, high-speed uplink packet access, or HSUPA,
technology, evolved high-speed uplink packet access, or HSPA+,
technology, wireless broadband Internet, or WiBro, technology
and long term evolution, or LTE, technology; |
| • | our plans for capital expenditures in 2011 for a range of
projects, including investments in our backbone networks,
investments to improve our WCDMA network-based products and
services, investments to build our LTE network, investments in
our wireless Internet-related and convergence businesses and
funding for mid- to long-term research and development projects,
as well as other initiatives, primarily related to our ongoing
businesses and in the ordinary course; |
| • | our efforts to make significant investments to build, develop
and broaden our businesses, including developing and providing
wireless data, multimedia, mobile commerce and Internet services; |
| • | our ability to comply with governmental rules and regulations,
including the regulations of the KCC related to
telecommunications providers, rules related to our status as a
“market-dominating business entity” under the Korean
Monopoly Regulation and Fair Trade Act, or the Fair Trade Act,
and the effectiveness of steps we have taken to comply with such
regulations; |
| • | our ability to manage effectively our bandwidth and to implement
timely and efficiently new bandwidth-efficient technologies; |
| • | our expectations and estimates related to interconnection fees,
tariffs charged by our competitors, regulatory fees, operating
costs and expenditures, working capital requirements, principal
repayment obligations with respect to long-term borrowings,
bonds and obligations under capital leases, and research and
development expenditures and other financial estimates; |
| • | the success of our various joint ventures and investments in
other telecommunications service providers; |
| • | our ability to successfully manage our acquisition in 2008 and
2009 of a majority stake in SK Broadband Co., Ltd., a fixed-line
telecommunications operator and broadband Internet service
provider; |
| • | our ability to successfully manage our acquisition in 2009 of
the leased-line business of SK Networks Co., Ltd., which
provides a substantial portion of the transmission lines we use; |
| • | our ability to successfully manage our investment in Packet One
Networks (Malaysia) Sdn. Bhd., a Malaysian wireless broadband
company; |
| • | our ability to successfully attract and retain subscribers under
the KCC’s new guideline on the marketing expenses of the
telecommunication service providers; and |
| • | the growth of the telecommunications industry in Korea and other
markets in which we do business and the effect that economic,
political or social conditions have on our number of
subscribers, call volumes and results of operations. |

We caution you that reliance on any forward-looking statement involves risks and uncertainties, and that although we believe that the assumptions on which our forward-looking statements are based are reasonable, any of those assumptions could prove to be inaccurate, and, as a result, the forward-looking statements based on those assumptions could be incorrect. Risks and uncertainties associated with our business include, but are not limited to, risks related to changes in the regulatory environment, technology changes, potential litigation and governmental actions, changes in the competitive environment, political changes, foreign exchange currency risks, foreign ownership limitations, credit risks and other risks and uncertainties that are more fully described under the heading “Item 3. Key Information — Risk Factors” and elsewhere in this report. In light of these and other uncertainties, you should not conclude that we will necessarily achieve any plans and objectives or projected financial results referred to in any of the forward-looking statements. We do not undertake to release the results of any revisions of these forward-looking statements to reflect future events or circumstances.

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PART I

ITEM 1. IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS

Item 1.A. Directors and Senior Management

Not applicable.

Item 1.B. Advisers

Not applicable.

Item 1.C. Auditor

Not applicable.

ITEM 2. OFFER STATISTICS AND EXPECTED TIMETABLE

Not applicable.

ITEM 3. KEY INFORMATION

Item 3.A. Selected Financial Data

You should read the selected consolidated financial and operating data below in conjunction with the consolidated financial statements and the related notes included elsewhere in this report. The selected consolidated financial data for the five years ended December 31, 2010 is derived from our audited consolidated financial statements and related notes thereto.

Our consolidated financial statements are prepared in accordance with Korean GAAP, which differs in certain respects from U.S. GAAP. For more detailed information you should refer to notes 32 and 33 of the notes to our audited consolidated financial statements included in this annual report.

	As of or for the Year Ended December 31,
	2006			2007			2008			2009			2010		2010*
	(In billions of Won and millions of dollars, except per share
and percentage data)
INCOME STATEMENT DATA
Korean GAAP:
Operating Revenue(1)	W	10,979.6	(2)	W	11,821.5	(2)	W	13,951.0	(2)	W	14,512.3	(2)	W	15,435.4	$ 13,652.4
Operating Expenses		8,356.2	(2)		9,711.3	(2)		12,190.7	(2)		12,631.1	(2)		13,493.1	11,934.5
Operating Income		2,623.4	(2)		2,110.2	(2)		1,760.3	(2)		1,881.2	(2)		1,942.3	1,717.9
Income from Continuing Operation before Income Tax		2,026.6	(2)		2,284.5	(2)		1,277.5	(2)		1,405.8	(2)		1,673.7	1,480.4
Net Income(3)		1,449.6			1,562.3			972.3			1,055.6			1,297.2	1,147.4
Net Income per Share		19,801			22,696			16,707			17,239			19,177	16.96
Diluted Net Income per Share		19,523			22,375			16,559			17,046			18,888	16.71
Dividends Declared per Share		8,000			9,400			9,400			9,400			9,400	8.31
Weighted Average Number of Shares		73,305,026			72,650,909			72,765,557			72,346,763			71,942,387	71,942,387
U.S. GAAP:
Operating Revenue	W	10,529.4		W	11,192.0		W	11,132.5		W	12,619.9		W	14,173.8	$ 12,536.5
Operating Expenses		7,705.8			9,123.9			9,380.1			10,745.5			12,359.4	10,931.7
Operating Income		2,823.6			2,068.1			1,752.4			1,874.4			1,814.4	1,604.8
Net Income(4)		1,876.4			1,451.1			951.7			1,356.7			1,396.6	1,235.3
Net Income per Share attributable to SK Telecom(4)(5)		25,624			20,720			14,744			20,453			21,199	18.75
Diluted Net Income per Share attributable to SK Telecom(4)(5)		25,207			20,379			14,606			20,145			20,841	18.43

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	As of or for the Year Ended December 31, — 2006		2007		2008		2009		2010		2010*
	(In billions of Won and millions of dollars, except per share
and percentage data)
BALANCE SHEET DATA
Korean GAAP:
Working Capital(6)	W	1,455.5	W	1,796.2	W	793.6	W	1,475.7	W	1,057.7	$ 935.5
Property and Equipment, Net		4,507.3		4,969.4		7,437.7		8,165.9		7,864.6	6,956.1
Total Assets		16,240.0		19,048.9		22,473.7		23,206.3		22,651.7	20,035.1
Non-current Liabilities(7)		3,548.5		4,344.4		6,020.4		5,966.7		4,257.8	3,766.0
Capital Stock		44.6		44.6		44.6		44.6		44.6	39.5
Total Shareholders’ Equity		9,483.1		11,687.6		11,824.4		12,344.6		12,478.6	11,037.2
U.S. GAAP:
Working Capital	W	1,286.2	W	1,751.1	W	738.0	W	1,815.6	W	1,078.6	$ 954,0
Total Assets(4)		17,909.4		20,173.6		21,239.2		25,788.3		25,298.7	22,376.4
Total Shareholders’ Equity(4)		10,718.4		12,897.6		12,562.0		14,260.8		14,572.7	12,889.4

	As of or for the Year Ended December 31,
	2006		2007		2008		2009		2010		2010*
	(In billions of Won and millions of dollars, except per share
and percentage data)
OTHER FINANCIAL DATA
Korean GAAP:
EBITDA(3)(8)	W	3,881.2	W	4,370.1	W	4,009.9	W	4,262.5	W	4,729.5	$	4,183.2
Capital Expenditures(9)		1,498.1		1,804.1		2,236.9		2,162.3		2,316.9		2,049.3
R&D Expenses(10)		279.0		293.1		299.7		293.2		352.0		311.3
Internal R&D		212.0		218.7		226.7		236.3		270.4		239.1
External R&D		67.0		74.4		73.0		56.9		81.6		72.2
Depreciation and Amortization		1,698.2		1,968.6		2,755.4		2,730.0		2,868.8		2,537.4
Cash Flow from Operating Activities(11)		3,590.5		3,721.0		3,293.0		2,932.6		4,021.0		3,556.5
Cash Flow from Investing Activities(11)		(2,535.0	)	(2,415.4	)	(3,877.0	)	(1,826.0	)	(2,358.7	)	(2,086.2	)
Cash Flow from Financing Activities(11)		(952.4	)	(1,041.3	)	866.8		(1,207.0	)	(1,818.3	)	(1,608.3	)
Margins (% of total sales):
EBITDA Margin(8)(12)		35.3	%	37.0	%	28.7	%	29.4	%	30.6	%	30.6	%
Operating Margin(12)		23.9		17.9		12.6		13.0		12.6		12.6
Net Margin(12)		13.2		12.3		7.0		7.3		8.4		8.4
U.S. GAAP:
EBITDA(4)(8)	W	4,527.7	W	3,909.5	W	3,146.7	W	4,155.6	W	4,613.4	$	4,080.7
Capital Expenditures(9)		1,538.0		1,854.0		1,861.0		2,160.5		2,316.4		2,048.8
Cash Flow from Operating Activities(11)		3,615.5		3,284.1		2,696.3		3,063.7		3,979.6		3,519.9
Cash Flow from Investing Activities(11)		(2,560.4	)	(2,436.2	)	(3,932.6	)	(2,124.6	)	(2,407.4	)	(2,129.3	)
Cash Flow from Financing Activities(11)		(940.6	)	(631.3	)	1,118.7		(840.0	)	(1,785.9	)	(1,579.6	)

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	As of or for the Year Ended December 31, — 2006		2007		2008		2009		2010		2010*
SELECTED OPERATING DATA
Population of Korea (millions)(13)		48.3		48.5		48.6		48.7		48.9	48.9
Our Wireless Penetration(14)		42.0 %		45.3 %		47.4 %		50.6 %		50.6 %	50.6 %
Number of Employees(15)		7,676		9,485		10,626		10,714		20,143	20,143
Total Sales per Employee (in millions of Won and thousands of
Dollars)	W	1,430.4	W	1,246.3	W	1,312.9	W	1,354.5	W	766.3	$ 677.8
Wireless Subscribers(16)		20,271,133		21,968,169		23,032,045		24,269,553		25,705,049	25,705,049
Average Monthly Outgoing Voice Minutes per Subscriber(17)		201		201		200		197		199	199
Average Monthly Revenue per Subscriber(18)	W	40,220	W	40,154	W	38,526	W	38,171	W	37,287	$ 32.98
Average Monthly Churn Rate(19)		2.0 %		2.6 %		2.7 %		2.7 %		2.7 %	2.7 %
Digital Cell Sites		12,515		16,099		17,213		15,979		17,483	17,483

| * | The translation into Dollars was made at the rate of Won 1,130.6
to US$1.00. See note 2(a) of the notes to our consolidated
financial statements. |
| --- | --- |
| (1) | Includes interconnection revenue of Won 1,033.4 billion for
2006, Won 1,062.2 billion for 2007,
Won 1,149.2 billion for 2008, 1,245.4 billion for
2009 and Won 1,237.5 billion for 2010. Includes digital
handset sales revenue of Won 185.3 billion in 2009 and Won
534.4 billion in 2010 from PS&Marketing which is our
consolidated subsidiary. |
| (2) | As a result of our sale of HELIO, LLC to Virgin Mobile USA, Inc.
in August 2008, HELIO’s results of operations have been
classified as discontinued operations. We and SK Communications
Co., Ltd., one of our subsidiaries, sold the Spicus division, a
telephone English education division, to Spicus Inc., a
subsidiary of Altos Ventures, in August 2009 and sold Etoos Co.,
Ltd. to Cheong Sol in October 2009. In addition, we sold shares
of iHQ, Inc. in April and July 2010 and liquidated SK-KTB Music
Investment Fund in October 2010. Operating revenue, operating
expenses, operating income and income before income taxes and
minority interest for the years ended December 31, 2006,
2007, 2008 and 2009 have been revised to exclude results of
operations of HELIO, the Spicus division, Etoos, iHQ, Inc. and
SK-KTB Music Investment Fund. |
| (3) | As of January 1, 2007, we adopted Statements of Korean
Accounting Standards, or SKAS No. 25. Pursuant to adoption
of SKAS No. 25, net income is allocated to equity holders
of the parent and minority interest. In addition, when a
subsidiary is purchased during the fiscal year, the
subsidiary’s statement of income is included in
consolidation as though it had been acquired at the beginning of
the fiscal year, and pre-acquisition earnings are presented as a
separate deduction within the consolidated statements of income.
The consolidated statement of income for the year ended
December 31, 2006 has been reclassified in accordance with
SKAS No. 25. |
| (4) | Adjusted to retroactively reflect our acquisition of an
additional 38.7% equity stake in SK Broadband in March 2008,
increasing our total equity interest in SK Broadband to 43.4%.
According to revised Accounting Standard Codification Topic 810
“Consolidation,” net income (loss) attributable to the
non-controlling interest is included in net income. The net loss
attributable to the non-controlling interest for the years ended
December 31, 2006, 2007, 2008, 2009 and 2010 was Won
(4.1 billion), Won (54.3 billion),
Won (121.1 billion), Won (123.0 billion) and Won
(128.5 billion), respectively. |
| (5) | Net income per share attributable to SK Telecom is calculated by
dividing net income attributable to SK Telecom by the weighted
average number of shares outstanding during the period. Diluted
net income per share attributable to SK Telecom is calculated by
dividing net income adjusted for dilution by potential dilutive
weighted average number of shares outstanding during the period,
taking into account the issuance of convertible bonds. |
| (6) | Working capital means current assets minus current liabilities. |
| (7) | Our monetary assets and liabilities denominated in foreign
currencies are valued at the exchange rate of Won 929.6 to
US$1.00 as of December 31, 2006, Won 938.2 to US$1.00 as of
December 31, 2007, Won 1,257.5 to US$1.00 as of
December 31, 2008, Won 1,167.6 to US$1.00 as of
December 31, 2009 |

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| | and Won 1,138.9 to US$1.00 as of December 31, 2010, the
rates of exchange permitted under Korean GAAP as of those dates.
See note 2(u) of the notes to our consolidated financial
statements. |
| --- | --- |
| (8) | EBITDA refers to income before interest income, interest
expense, taxes, depreciation and amortization. EBITDA as used
here is a non-GAAP measure and is commonly used in the
telecommunications industry to analyze companies on the basis of
operating performance. Since the telecommunications business is
a very capital intensive business, capital expenditures and
level of debt and interest expenses may have a significant
impact on net income for companies with similar operating
results. Therefore, for a telecommunications company such as
ourselves, we believe that EBITDA provides a useful reflection
of our operating results. We use EBITDA as a measurement of
operating performance because it assists us in comparing our
performance on a consistent basis as it removes from our
operating results the impact of our capital structure, which
includes interest expense from our outstanding debt, and our
asset base, which includes depreciation and amortization of our
property and equipment. However, EBITDA should not be construed
as an alternative to operating income or any other measure of
performance determined in accordance with Korean GAAP or
U.S. GAAP or as an indicator of our operating performance,
liquidity or cash flows generated by operating, investing and
financing activities. Other companies may define EBITDA
differently than we do. EBITDA under U.S. GAAP is computed using
interest income, interest expense, depreciation, amortization
and income taxes under U.S. GAAP, which may differ from Korean
GAAP for these items. |
| (9) | Consists of investments in property, plant and equipment. Under
U.S. GAAP, interest costs incurred during the period required to
complete an asset or ready an asset for its intended use are
capitalized based on the interest rates a company pays on its
outstanding borrowings. Under Korean GAAP, such interest costs
are expensed as incurred. |
| (10) | Includes donations to Korean research institutes and educational
organizations. See “Item 5.C. Research and
Development”. |
| (11) | Cash flow activities from discontinued operation for the years
ended December 31, 2006, 2007, 2008, 2009 and 2010 have
been excluded. |
| (12) | Operating revenue and operating income used in the calculation
of these ratios exclude the operating revenue and operating
income from the discontinued operation, but include the
operating revenue and operating income of newly-consolidated
subsidiaries prior to the date of consolidation. |
| (13) | Population estimates based on historical data published by the
National Statistical Office of Korea. |
| (14) | Wireless penetration is determined by dividing our subscribers
by total estimated population, as of the end of the period. |
| (15) | Includes regular employees and temporary employees. The number
of employees as of December 31, 2010 includes employees of
Service Ace Co., Ltd., Service Top Co., Ltd., and Network
O&S Co., Ltd., our wholly-owned subsidiaries established in 2010, who were previously employed
by third-party outsourcing companies. See “Item 6.D.
Employees”. |
| (16) | Wireless subscribers include those subscribers who are
temporarily deactivated, including (1) subscribers who
voluntarily deactivate temporarily for a period of up to three
months no more than twice a year and (2) subscribers with
delinquent accounts who may be involuntarily deactivated up to
two months before permanent deactivation, which we determine
based on various factors, including prior payment history. |
| (17) | The average monthly outgoing voice minutes per subscriber is
derived by dividing the total minutes of outgoing voice usage
for the period by the monthly average number of subscribers for
the period, then dividing that number by the number of months in
the period. The monthly average number of subscribers is derived
by dividing (i) the sum of the average number of
subscribers for each month in the period, calculated as the
average of the number of subscribers on the first and last days
of the relevant month, by (ii) the number of months in the
period. |
| (18) | The average monthly revenue per subscriber excludes
interconnection revenue and is derived by dividing the sum of
total initial subscription fees, monthly plan-based fees, usage
charges for outgoing voice calls, usage charges for wireless
data services, value-added service fees and other miscellaneous
revenues for the period by the monthly average number of
subscribers for the period, then dividing that number by the
number of months |

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| | in the period. Including interconnection revenue, average
monthly revenue per subscriber was Won 44,599 for 2006, Won
44,416 for 2007, Won 43,016 for 2008, Won 42,469 for 2009 and
Won 41,374 for 2010. |
| --- | --- |
| (19) | The average monthly churn rate for a period is the number
calculated by dividing the sum of voluntary and involuntary
deactivations during the period by the simple average of the
number of subscribers at the beginning and end of the period,
then dividing that number by the number of months in the period.
Churn includes subscribers who upgrade to the next generation
service, such as CDMA 1xEV/ DO or WCDMA, by terminating their
service and opening a new subscriber account. |

As a measure of our operating performance, we believe that the most directly comparable U.S. and Korean GAAP measure to EBITDA is net income. The following table reconciles our net income under Korean GAAP to our definition of EBITDA on a consolidated basis for each of the five years ended December 31, 2010.

	As of or for the Year Ended December 31,
	2006		2007		2008		2009		2010		2010*
	(In billions of Won and millions of dollars)
Korean GAAP:
Net Income	W	1,449.6	W	1,562.3	W	972.3	W	1,055.6	W	1,297.2	$	1,147.4
LESS: Interest income(1)		(79.2	)	(92.6	)	(128.7	)	(186.4	)	(234.8	)	(207.7	)
ADD: Interest expense(1)		237.8		234.0		337.9		439.9		396.5		350.7
Taxes(1)		571.9		695.6		188.9		359.3		404.3		357.6
Depreciation and		1,701.1		1,970.8		2,639.5		2,594.1		2,866.3		2,535.2
Amortization(1)
EBITDA	W	3,881.2	W	4,370.1	W	4,009.9	W	4,262.5	W	4,729.5	$	4,183.2

| * | The translation into Dollars was made at the rate of Won 1,130.6
to US$1.00. See note 2(a) of the notes to our consolidated
financial statements. |
| --- | --- |
| (1) | In accordance with SKAS No. 25, which we adopted in 2007,
when a subsidiary is purchased during the fiscal year, the
subsidiary’s statement of income is included in
consolidation as though it had been acquired at the beginning of
the fiscal year, and pre-acquisition earnings are presented as a
separate deduction within the consolidated statements of income.
For purposes of reconciling net income under Korean GAAP with
EBITDA, the interest income, interest expense, taxes and
depreciation and amortization amounts for 2007, 2008, 2009 and
2010 shown in the table above exclude, with respect to
subsidiaries newly consolidated in 2007, 2008, 2009 or 2010 the
income earned and expense incurred by such subsidiaries prior to
the date of consolidation. In addition, interest income,
interest expense, taxes and depreciation and amortization
amounts for 2006, 2007, 2008, 2009 and 2010 shown in the table
above include income earned and expense incurred from
discontinued operations. As a result, the interest income,
interest expense, taxes and depreciation and amortization
amounts for 2007, 2008, 2009 and 2010 that appear in the table
above differ from those set forth in our consolidated statements
of income and consolidated statements of cash flows for the
years ended December 31, 2007, 2008, 2009 and 2010,
respectively. |

The following table reconciles our net income under U.S. GAAP to our definition of EBITDA on a consolidated basis for each of the five years ended December 31, 2010.

	As of or for the Year Ended December 31,
	2006		2007		2008		2009		2010		2010*
	(In billions of Won and millions of dollars)
U.S. GAAP:
Net Income(1)	W	1,876.4	W	1,451.1	W	951.7	W	1,356.7	W	1,396.6	$	1,235.3
LESS: Interest income(2)		(85.9	)	(97.7	)	(125.4	)	(207.4	)	(225.0	)	(199.0	)
ADD: Interest expense(2)		240.4		202.7		233.5		374.3		339.3		300.1
Taxes(2)		686.7		576.7		161.9		486.7		389.1		344.3
Depreciation and Amortization(2)		1,810.1		1,776.7		1,925.0		2,145.3		2,713.4		2,400.0
EBITDA(1)	W	4,527.7	W	3,909.5	W	3,146.7	W	4,155.6	W	4,613.4	$	4,080.7

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| * | The translation into Dollars was made at the rate of Won 1,130.6
to US$1.00. See note 2(a) of the notes to our consolidated
financial statements. |
| --- | --- |
| (1) | Adjusted to retroactively reflect our acquisition of an
additional 38.7% equity stake in SK Broadband in
March 2008, increasing our total equity interest in SK
Broadband to 43.4%. |
| (2) | Interest income, interest expense, taxes and depreciation and
amortization amounts for 2006, 2007, 2008, 2009 and 2010 shown
in the table above include income earned and expense incurred
from discontinued operations. |

Exchange Rates

The following table sets forth, for the periods and dates indicated, certain information concerning the noon buying rate for translations of Won amounts into Dollars. We make no representation that the Won or Dollar amounts we refer to in this report could have been or could be converted into Dollars or Won, as the case may be, at any particular rate or at all.

Year Ended December 31,	At End of — Period	Average — Rate(1)	High	Low
	(Won per US$1.00)
2006	930.0	954.3	1,002.9	913.7
2007	935.8	929.0	950.2	903.2
2008	1,262.0	1,098.7	1,507.9	935.2
2009	1,163.7	1,274.6	1,570.1	1,149.0
2010	1,130.6	1,155.7	1,253.2	1,104.0

High	Low
(Won per US$1.00)
December 2010	1,155.2	1,130.0
January 2011	1,128.1	1,111.0
February 2011	1,130.6	1,100.9
March 2011	1,135.6	1,097.3
April 2011	1,091.8	1,068.4
May 2011	1,101.6	1,065.5
June 2011 (through June 24)	1,091.2	1,073.9

Source: Federal Reserve Bank of New York.

(1) The average rates for the annual periods were calculated based on daily noon buying rates for cable transfers in New York City certified for customs purposes by the Federal Reserve Bank of New York.

On June 24, 2011, the noon buying rate was Won 1,078.7 to US$1.00.

Item 3.B. Capitalization and Indebtedness

Not applicable.

Item 3.C. Reasons for the Offer and Use of Proceeds

Not applicable.

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Item 3.D. Risk Factors

Risks Relating to Our Business

Competition may reduce our market share and harm our results of operations and financial condition.

We face substantial competition across all our businesses, including our wireless telecommunications business, in Korea. We expect competition to intensify as a result of continuing consolidation of market leaders and the development of new technologies, products and services. We expect that such trends will continue to put downward pressure on the prevailing tariffs we can charge our subscribers.

Prior to April 1996, we were the only wireless telecommunications service provider in Korea. Since then, several new providers have entered the market, offering wireless voice and data services that compete directly with our business. The collective market share of these providers amounts to approximately 49.4%, in terms of numbers of wireless service subscribers, as of December 31, 2010. Since 2000, there has also been considerable consolidation in the wireless telecommunications industry, resulting in the emergence of stronger competitors, including the merger of KT Freetel Co., Ltd., or KTF, one of our principal wireless competitors before the merger, into KT Corporation, or KT, Korea’s principal fixed-line operator, in June 2009 and the merger in January 2010 of LG DACOM Corporation and LG Powercomm Co., Ltd. into LG Telecom Co., Ltd., which subsequently changed its name to LG Uplus Corp., or LG U+. Such consolidation has created large, well-capitalized competitors with substantial financial, technical, marketing and other resources to respond to our business offerings. In addition, our broadband Internet access service provided through SK Broadband competes with other providers of Internet access services, including KT, LG U+, and cable companies, and our fixed-line telephone service provided through SK Broadband competes with KT, as well as providers of voice over Internet protocol, or VoIP, services. Future business combinations and alliances in the telecommunications industry may also create significant new competitors or enhance the abilities of our current competitors to offer more competitive services and could harm our business and results of operations.

Continued competition from the other wireless and fixed-line service providers has also resulted in, and may continue to result in, a substantial level of deactivations among our subscribers. Subscriber deactivations, or churn, may significantly harm our business and results of operations. In 2010, the churn rate in our wireless business ranged from 2.3% to 3.1%, with an average churn rate of 2.7%, compared to an average churn rate of 2.7% in 2009. Intensification of competition in the future may cause our churn rates to increase. The increased competition may cause us to increase our marketing expenses as a percentage of sales to attract and retain subscribers.

However, on May 13, 2010, the KCC announced a guideline recommending that telecommunication service providers limit their marketing expenses to 22% of their annual sales. Such marketing expenses include initial commissions, monthly commissions and retention commissions paid to our authorized dealers and subscribers, including handset subsidies, but do not include advertising expenses. While the guideline is not binding, we, as well as our competitors, nonetheless try to adhere to such guideline when feasible, which may have a material adverse effect on our businesses and results of operations.

In addition, in March 2008, the KCC fully lifted its prohibition on the practice of telecommunications services providers to offer handsets at below retail prices to attract new subscribers. As a result of the Government’s decision to allow handset subsidies, we have faced increased competition from other mobile service providers and increased our marketing expenses. However, in order to comply with the KCC’s guideline on marketing expenditures, we may not be able to spend sufficient funds on marketing to effectively compete with our competitors, and any material decrease in our marketing expenditures may have a material adverse effect on our results of operations.

In 2007, the KCC introduced certain regulations to allow telecommunication service providers to bundle their services as well as allow our competitors to employ services provided by us so that they can offer similar discounted package services. Competition intensified as licensed transmission service providers were permitted to offer local, domestic long-distance and international telephone services, as well as broadband Internet access and Internet phone services, without additional business licenses. Moreover, beginning in September 2010, we are required to lease our networks to a mobile virtual network operator, or MVNO, at such MVNO’s request, at a rate mutually agreed upon that complies with the standards set by the KCC. An MVNO has commenced providing wireless data services in March 2011 and we expect that a few additional MVNOs will commence providing wireless

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telecommunications services using the networks leased from us beginning in the second half of 2011. For more detailed discussion of the Government’s rate regulations, see “Item 4.B. Business Overview — Law and Regulation — Competition Regulation — Rate Regulation”. In addition, Korea Mobile Internet, or KMI, announced in 2010 a plan to enter the wireless telecommunications market as a fourth telecommunication service provider in Korea and provide wireless Internet and mobile VoIP services based on the wireless broadband Internet, or WiBro, technologies. While the KCC rejected KMI’s application for a license to provide wireless services in February 2011 based on its insufficient technological and financial capabilities, among other factors, KMI may reapply after amending its application. We believe the introduction of bundled services and the entrance of MVNOs and KMI into the wireless telecommunications market may further increase competition in the telecommunications sector, as well as cause downward price pressure on the fees we charge for our services, which, in turn, may have a material adverse effect on our results of operations, financial position and cash flows.

We expect competition to intensify as a result of continued consolidation of our competitors, regulatory changes and the rapid development of new technologies, products and services. Our ability to compete successfully will depend on our ability to anticipate and respond to various competitive factors affecting the industry, including new services that may be introduced, changes in consumer preferences, economic conditions and discount pricing strategies by competitors.

Inability to successfully implement or adapt our network and technology to meet the continuing technological advancements affecting the wireless industry will likely have a material adverse effect on our financial condition, results of operation, cash flows and business.

The telecommunications industry has been characterized by continual improvement and advances in technology, and this trend is expected to continue. We and our competitors have continually implemented technology upgrades from basic code division multiple access, or CDMA, network to wide-band code division multiple access, or WCDMA, which is the 3G technology implemented by us. Our WCDMA network currently supports more advanced high-speed uplink packet access, or HSUPA, technology, as well as evolved high speed packet access, or HSPA+, technology. We are currently building more advanced networks based on long term evolution, or LTE, technology, which is generally referred to as a 4G technology, with a goal of commencing commercial LTE services by July 2011. The more successful introduction of a 4G network by a competitor, including better market acceptance of a competitor’s 4G-based services, could materially and adversely affect our existing wireless businesses as well as the returns on future investments we may make in our 4G network or our other businesses.

In March 2005, we obtained a license from the MIC to provide WiBro services. WiBro enables us to offer high-speed and large-packet data services, including wireless broadband Internet access to portable computers and other portable devices. We commercially launched WiBro service in June 2006, initially to 24 “hot zone” areas, which are neighborhoods and districts that we have determined to be high-data traffic areas, in seven cities in Korea. By the end of 2010, we have extended WiBro service to hot zone areas in 84 cities throughout Korea. In 2011, we plan to further expand WiBro service to more extensive hot zone areas in the 84 cities. Beyond 2011, our WiBro expansion plans will depend, in part, on subscriber demand for WiBro services. As the implementation of WiBro service in Korea is relatively new, we cannot assure you that there will continue to be sufficient demand for our WiBro services. Our WiBro services may not be commercially successful if market conditions are unfavorable or service demand is weak.

For a more detailed description of our backbone networks, see “Item 4.B. Business Overview — Digital Cellular Network”.

Our business could also be harmed if we fail to implement, or adapt to, future technological advancements in the telecommunications sector in a timely manner.

Implementation of WiBro and LTE technologies has required, and may continue to require, significant capital and other expenditures, which we may not recoup.

We have made, and intend to continue to make, capital investments to develop and launch our WiBro and LTE services. In 2010, we spent Won 119.9 billion in capital expenditures to build and expand our WiBro network. In 2011, we plan to spend approximately Won 34 billion to expand our WiBro network and may make further capital

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investments related to our WiBro service in the future. We also plan to invest in developing and building our LTE networks in 2011. Our WiBro and LTE-related investment plans are subject to change, and will depend, in part, on market demand for WiBro and LTE services, the competitive landscape for provision of such services and the development of competing technologies. There may not be sufficient demand for our WiBro and LTE services, as a result of competition or otherwise, to permit us to recoup or profit from our WiBro and LTE-related capital investments. KT commercially launched its WiBro service in 2006 and announced its plan to commence its commercial LTE service in early 2012, while LG U+ announced its plan to commence its commercial LTE service in July 2011. The more successful operation of WiBro and LTE networks by KT, LG U+ or another competitor, including better market acceptance of a competitor’s WiBro and LTE services, could also materially and adversely affect our business.

Our growth strategy calls for significant investments in new businesses and regions, including businesses and regions in which we have limited experience.

As a part of our growth strategy, we plan to selectively seek business opportunities abroad. In May 2006 our subsidiary, HELIO, LLC, launched cellular voice and data services across the United States. In August 2008, together with EarthLink Inc., our joint venture partner in HELIO, we sold our equity interest in HELIO to Virgin Mobile USA, Inc., in exchange for an equity stake in Virgin Mobile USA, Inc. In November 2009, we sold our equity interest in Virgin Mobile USA, Inc. to Sprint Nextel Corporation in connection with the merger of Virgin Mobile USA, Inc. with and into Sprint Nextel Corporation, in exchange for a 0.6% equity interest in Sprint Nextel Corporation. In 2010, we sold all of the shares of Sprint Nextel Corporation held by us. In connection with our investment in HELIO, we have recognized a cumulative loss of Won 355 billion through the end of 2010. See “Item 4.B. Business Overview — Our Business Strategy — Global Business — United States” for more information regarding our investments in HELIO and Virgin Mobile USA, Inc. We continue to seek other opportunities to expand our business abroad, particularly in Asia and the United States, as such opportunities present themselves. These global businesses may require further investment from us. For a more detailed description of our investments in our global business, see “Item 4.B. Business Overview — Our Services — Global Business”.

We believe that we must continue to make significant investments to build, develop and broaden our existing businesses. Entering into new businesses and regions in which we have limited experience may require us to make substantial investments, and despite such investments, we may still be unsuccessful in these efforts to expand and diversify. We might not be able to recoup or profit from our investments in new businesses and regions. In addition, when we enter into these businesses and regions with partners through joint ventures or other strategic alliances, we and those partners may have disagreements with respect to strategic directions or other aspects of business, or may otherwise be unable to coordinate or cooperate with each other, any of which could materially and adversely affect our operations in such businesses and regions.

We may fail to successfully integrate our new acquisitions and joint ventures and may fail to realize the anticipated benefits.

We have pursued convergence growth opportunities. For example, in 2008 and 2009, we acquired an additional equity stake in SK Broadband, Korea’s second-largest fixed-line operator, for an aggregate purchase price of approximately Won 1.45 trillion and currently hold a 50.6% equity stake in the company. In February 2010, we acquired a 49% equity stake in Hana SK Card Co., Ltd. for the purchase price of Won 402 billion in order to provide cross-over services between telecommunication and finance. In September 2009, we also acquired the leased-line business of SK Networks Co., Ltd. for Won 892.8 billion and assumed Won 611.4 billion of debt as part of the transaction. While we are hoping to benefit from a range of synergies from the acquisitions, including by offering our customers bundled fixed-line and mobile telecommunications services, we may not be able to integrate our new businesses and may fail to realize the expected benefits in the near term, or at all.

In particular, we may experience difficulties in operating SK Broadband’s fixed-line telecommunications and broadband Internet services with our existing products and services, and we may be unsuccessful in retaining SK Broadband’s existing customers. Since April 2008, customers of SK Broadband have filed lawsuits against SK Broadband in the Seoul Central District Court, alleging that SK Broadband had violated customers’ privacy, and an investigation against SK Broadband was initiated by the Seoul Central Prosecutor’s Office, the KCC and the

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Korea Trade Commission. In connection with its investigation, the KCC suspended SK Broadband from soliciting new subscribers for its broadband Internet services for a period of 40 days from July 1, 2008 and, in addition, imposed an administrative fine of Won 178 million. As of March 31, 2011, the number of plaintiffs was 23,930 and the aggregate amount of damages claimed by such plaintiffs was approximately Won 24.1 billion. For more information regarding this lawsuit, see “Item 8.A. Consolidated Statements and Other Financial Information — Legal Proceedings — SK Broadband Litigation”.

Due to the existing high penetration rate of wireless services in Korea, we are unlikely to maintain our subscriber growth rate, which could adversely affect our results of operations.

According to data published by the KCC and our population estimates based on historical data published by the National Statistical Office of Korea, the penetration rate for the Korean wireless telecommunications service industry as of December 31, 2010 was approximately 103.9%, which is high compared to many industrialized countries. Therefore, the penetration rates for wireless telecommunications service in Korea will not grow significantly. As a result of the already high penetration rates in Korea for wireless services coupled with our leading market share, we expect our subscriber growth rate to decrease. Slowed growth in penetration rates without a commensurate increase in revenues through the introduction of new services and increased use of our services by existing subscribers would likely have a material adverse effect on our financial condition, results of operations and cash flows.

Our business and results of operations may be adversely affected if we fail to acquire adequate additional spectrum or use our bandwidth efficiently to accommodate subscriber growth and subscriber usage.

One of the principal limitations on a wireless network’s subscriber capacity is the amount of spectrum available for use by the system. According to the KCC’s final plan announced in February 2010, the amount of spectrum in the 800 MHz band allocated to us will be reduced to 2 x 15 MHz of spectrum beginning in July 2011 from the current 2 x 22.5 MHz. Instead, we have been allocated an additional 2 x 10 MHz of spectrum in the 2.1 GHz band for our use until December 2016, which we have been using for our 3G services since October 2010. We currently use our CDMA and WCDMA technologies to provide nationwide services to our subscribers.

The growth of our wireless data businesses has been a significant factor in the increased utilization of our bandwidth, since wireless data applications are generally more bandwidth-intensive than voice services. In particular, the increasing popularity of smartphones and data intensive applications among smartphone users has recently been a major factor for the high utilization of our bandwidth. This trend has been offset in part by the implementation of CDMA 1xEV-DO upgrades to our CDMA network and, more recently, the completion of our HSDPA-capable WCDMA network, which both enable more efficient usage of our bandwidth than was possible on our basic CDMA network. However, if the current trend of increased data transmission use by our subscribers continues, or the volume of the multimedia content we offer through our wireless data services substantially grows, our bandwidth capacity requirements are likely to increase. While we believe that we can address the capacity constraint issue through system upgrades and efficient allocation of bandwidth, inability to address such capacity constraints in a timely manner may adversely affect our business, results of operations, financial position and cash flows. In the event we are unable to maintain sufficient bandwidth capacity, our subscribers may perceive a general slowdown of wireless services. Growth of our wireless business will depend in part upon our ability to manage effectively our bandwidth capacity and to implement efficiently and in a timely manner new bandwidth-efficient technologies if they become available. We cannot assure you that bandwidth constraints will not adversely affect the growth of our wireless business.

We rely on key researchers and engineers and senior management, and the loss of the services of any such personnel or the inability to attract and retain them may negatively affect our business.

Our success depends to a significant extent upon the continued service of our research and development and engineering personnel, and on our ability to continue to attract, retain and motivate qualified researchers and engineers. In particular, our focus on leading the market in introducing new services has meant that we must aggressively recruit engineers with expertise in cutting-edge technologies.

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We also depend on the services of experienced key senior management, and if we lose their services, it would be difficult to find and integrate replacement personnel in a timely manner, or at all.

The loss of the services of any of our key research and development and engineering personnel or senior management without adequate replacement, or the inability to attract new qualified personnel, would have a material adverse effect on our operations.

We need to observe certain financial and other covenants under the terms of our debt instruments, the failure to comply with which would put us in default under those instruments.

Certain of our debt instruments contain financial and other covenants with which we are required to comply on an annual and semi-annual basis. The financial covenants include, but are not limited to, maintenance of credit ratings and debt-to-equity ratios. The documentation for such debt also contains negative pledge provisions limiting our ability to provide liens on our assets as well as cross-default and cross-acceleration clauses, which give related creditors the right to accelerate the amounts due under such debt if an event of default or acceleration has occurred with respect to our existing or future indebtedness, or if any material part of our indebtedness or indebtedness of our subsidiaries is capable of being declared payable before the stated maturity date. In addition, such covenants restrict our ability to raise future debt financing.

If we breach our financial or other covenants, our financial condition will be adversely affected to the extent we are not able to cure such breaches or repay the relevant debt.

We may have to make further financing arrangements to meet our capital expenditure requirements and debt payment obligations.

As a network-based wireless telecommunications provider, we have had, and expect to continue to have, significant capital expenditure requirements as we continue to build out, maintain and upgrade our networks. We spent Won 2,316.5 billion for capital expenditures in 2010 and we expect to spend a similar amount for capital expenditures in 2011 for a range of projects, including investments in our backbone networks, investments to improve our WCDMA network-based products and services, investments to build our LTE network, investments in our wireless Internet-related and convergence businesses and funding for mid- to long-term research and development projects, as well as other initiatives, primarily related to our ongoing businesses and in the ordinary course. In 2011, we plan to continue HSUPA and HSPA+ upgrades to our WCDMA network and expand our WiBro service to more extensive “hot zone” areas in 84 cities, as well as introduce LTE service by July 2011. For a more detailed discussion of our capital expenditure plans and a discussion of other factors that may affect our future capital expenditures, see “Item 5.B. Liquidity and Capital Resources”

As of December 31, 2010, we had approximately Won 2,392.5 billion in contractual payment obligations due in 2011, almost all of which involve repayment of debt obligations. See “Item 5.F. Tabular Disclosure of Contractual Obligations”.

We have not arranged firm financing for all of our current or future capital expenditure plans and contractual payment obligations. We have, in the past, obtained funds for our proposed capital expenditure and payment obligations from various sources, including our cash flow from operations as well as from financings, primarily debt and equity financings. Any material adverse change in our operational or financial condition could impact our ability to fund our capital expenditure plans and contractual payment obligations. Still volatile financial market conditions may also curtail our ability to obtain adequate funding. Inability to fund such capital expenditure requirements may have a material adverse effect on our financial condition, results of operations and business. In addition, although we currently anticipate that the capital expenditure levels estimated by us will be adequate to meet our business needs, such estimates may need to be adjusted based on developments in technology and markets. In the event we are unable to meet any such increased expenditure requirements or to obtain adequate financing for such requirements, on terms acceptable to us, or at all, this may have a material adverse effect on our financial condition, results of operations and business.

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Termination or impairment of our relationship with a small number of key suppliers for network equipment and for leased lines could adversely affect our results of operations, financial position and cash flows.

We purchase wireless network equipment from a small number of suppliers. To date, we have purchased substantially all of the equipment for our CDMA network from Samsung Electronics and substantially all of the equipment for our WCDMA network, including the software and firmware used to upgrade our WCDMA network, from Samsung Electronics and LG Ericsson. In addition, to date, we have purchased substantially all of the equipment for our WiBro network from Samsung Electronics. We plan to purchase substantially all of the equipment for our LTE network from Samsung Electronics, LG Ericsson and Nokia Siemens Networks. We believe Samsung Electronics currently manufactures approximately half of the wireless handsets sold to our subscribers. Although other manufacturers sell the equipment we require, sourcing such equipment from other manufacturers could result in unanticipated costs in maintenance and upkeep of the CDMA and WCDMA networks, as well as unanticipated increased costs in the planned expansion of our WiBro and LTE network. Inability to obtain the equipment needed for our networks in a timely manner may have an adverse effect on our business, financial condition, results of operations and cash flows.

We cannot assure you that we will be able to continue to obtain the necessary equipment from one or more of our suppliers. Any discontinuation or interruption in the availability of equipment from our suppliers for any reason could have an adverse effect on our results of operations. Inability to lease adequate lines at commercially reasonable rates may impact the quality of the services we offer and may also damage our reputation and our business.

Our business relies on technology developed by us as well as technologies provided by third parties, and our business will suffer if we are unable to protect our proprietary rights, obtain new licensing agreements or renew existing licensing agreements with third parties.

We own numerous patents and trademarks worldwide, and have applications for patents pending in many countries, including Korea, Japan, China, the United States, and Europe. We also license a number of patented processes and trademarks under cross-licensing, technical assistance and other agreements. In addition to active internal and external research and development efforts, our success depends in part on our ability to obtain patents, licenses and other intellectual property rights covering our services.

We may be required to defend against charges of infringement of patent or other proprietary rights of third parties. Although we have not experienced any significant patent or other intellectual property disputes, we cannot be certain that any significant patent or other intellectual property disputes will not occur in the future. Defending our patent and other proprietary rights could require us to incur substantial expense and to divert significant resources of our technical and management personnel, and could result in our loss of rights to employ certain technologies to provide services. If we are unable to renew our technology licensing arrangements on acceptable terms, we may lose the legal protection to use certain of the technologies we employ to provide services and be prohibited from using those technologies which may prevent us from providing our services. In addition, we could be at a disadvantage if our competitors obtain licenses for protected technologies on more favorable terms than we do. We also cannot provide assurance that we will be able to obtain additional licenses for new or existing technologies on acceptable terms or at all.

Labor disputes may disrupt our operations.

Although we have not experienced any significant labor disputes, there can be no assurance that we will not experience labor disputes in the future, including protests and strikes, which could disrupt our business operations and have an adverse effect on our financial condition and results of operation.

Every two years, the union and management negotiate and enter into a new collective bargaining agreement that has a two-year duration, which is focused on employee benefits and welfare. Employee wages are separately negotiated on an annual basis. Although we consider our relations with our employees to be good, there can be no assurance that we will be able to maintain such a working relationship with our employees and will not experience labor disputes resulting from disagreements with the labor union in the future.

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Our businesses are subject to extensive Government regulation and any change in Government policy relating to the telecommunications industry could have a material adverse effect on our results of operations, financial condition and cash flows.

Most of our businesses are subject to extensive governmental supervision and regulation. The KCC has periodically reviewed the tariffs charged by wireless operators and has, from time to time, suggested tariff reductions. Although these suggestions are not binding, we have in the past implemented some tariff reductions in response to KCC recommendations. After discussions with the KCC, in November 2009, we adopted various tariff reduction measures, including a reduction of the initial subscription fee by 27% and an increase in discounts for long-term subscribers. In March 2010, we also began to charge voice calls on a per-second basis, which has the effect of reducing the usage charges compared with the previous system of charging per ten seconds. After discussions with the KCC, in June 2011, we announced further tariff reduction measures, including a reduction of the monthly fee by Won 1,000 for every subscriber, an exemption of usage charges for short text message service, or SMS, up to 50 messages per month and the introduction of customized fixed rate plans for smartphone users.

The Government also plays an active role in the selection of technology to be used by telecommunications operators in Korea. The MIC adopted the WCDMA and CDMA2000 technologies as the only standards available in Korea for implementing 3G services. The KCC may impose similar restrictions on the choice of technology used in future telecommunications services, and it is possible that technologies promoted by the Government in the future may not provide the best commercial returns for us.

Furthermore, the Government sets the policies regarding the use of frequencies and allocates the spectrum of frequencies used for wireless telecommunications. In February 2010, the KCC announced its final plan to reallocate the spectrum of frequencies among us, KT and LG U+. In addition, in June 2011 the KCC announced its plan to sell 20 MHz of bandwidth in the 1.8 GHz spectrum, 20 MHz of bandwidth in the 2.1 GHz spectrum and 10 MHz of bandwidth in the 800 MHz spectrum. See “Item 4.B. Business Overview — Law and Regulation — Competition Regulation”. While we do not believe the reallocation of spectrum will materially impact our ability to maintain sufficient bandwidth capacity, the reallocation and new allocation of the spectrum to our existing or new competitors could increase competition among wireless service providers, which may have an adverse effect on our business.

Pursuant to recent amendments to the Telecommunications Business Act, which became effective as of September 23, 2010, certain mobile network operators designated by the KCC, which currently include only us, are required to lease their networks or allow use of their networks (collectively, “wholesale lease”) to other network service providers, such as an MVNO, that have requested such wholesale lease in order to provide their own services using the leased networks. An MVNO has commenced providing wireless data services in March 2011 and we expect that a few additional MVNOs will commence providing wireless telecommunications services using the networks leased from us beginning in the second half of 2011. We believe that leasing a portion of our bandwidth capacity to an MVNO would impair our ability to use our bandwidth in ways that would generate maximum revenues and would strengthen our MVNO competitors by granting them access and lowering their costs to enter into our markets. Accordingly, our profitability may be adversely affected.

Our wireless telecommunications services depend, in part, on our interconnection arrangements with domestic and international fixed-line and other wireless networks. Our interconnection arrangements, including the interconnection rates we pay and interconnection rates we charge, affect our revenues and operating results. The KCC determines the basic framework for interconnection arrangements, including interconnection policies relating to interconnection rates in Korea, and the KCC has changed this framework several times in the past. We cannot assure you that we will not be adversely affected by future changes in the KCC’s interconnection policies. See “Item 4.B. Business Overview — Interconnection — Domestic Calls”.

In January 2003, the MIC announced its plan to implement number portability with respect to wireless telecommunications service in Korea. The number portability system allows wireless subscribers to switch wireless service operators while retaining the same mobile phone number. In addition, the MIC has also required all new subscribers to be given numbers with the ‘010’ prefix starting January 2004, and it has been gradually retracting the mobile service identification numbers which had been unique to each wireless telecommunications service provider, including ‘011’ for our cellular services. Historically, ‘011’ has had high brand recognition in Korea

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as the premium wireless telecommunications service. The MIC’s adoption of the number portability system has resulted in and may continue to result in weakened customer loyalty, increased competition among wireless service providers and higher costs of marketing, increased subscriber deactivations and increased churn rate, all of which had, and may continue to have, an adverse effect on our results of operations. See “Item 5. Operating and Financial Review and Prospects” and “Item 4.B. Business Overview — Subscribers — Number Portability”.

In addition, the KCC may revoke our licenses or suspend any of our businesses if we fail to comply with its rules, regulations and corrective orders, including the rules restricting beneficial ownership and control or any violation of the conditions of our licenses. Alternatively, in lieu of suspension of our business, the KCC may levy a monetary penalty of up to 3% of the average of our annual revenue for the preceding three fiscal years. The revocation of our cellular licenses, suspension of our business or imposition of monetary penalties by the KCC could have a material adverse effect on our business. We believe we are currently in compliance with the material terms of all our cellular licenses, including our WCDMA and WiBro licenses.

We are subject to additional regulations as a result of our dominant market position in the wireless telecommunications sector, which could harm our ability to compete effectively.

The KCC endeavors to promote competition in the Korean telecommunications markets through measures designed to prevent a dominant service provider from exercising its market power and deterring the emergence and development of viable competitors. We are currently designated by the KCC as the “market dominant service provider” in respect of our wireless telecommunications business. As such, we are subject to additional regulations to which certain of our competitors are not subject. For example, under current Government regulations, we must obtain prior approval from the KCC to raise our existing rates or introduce new rates. See “Item 4.B. Business Overview — Law and Regulation — Competition Regulation — Rate Regulation”. We could also be required by the KCC to charge higher usage rates than our competitors for future services. In addition, we were required to introduce number portability earlier than our competitors, KT and LG U+.

We also qualify as a “market-dominating business entity” under the Fair Trade Act, which subjects us to additional regulations. For instance, during our acquisition of Shinsegi Telecom, Inc. in 2002, the Fair Trade Commission of Korea, or the FTC, approved the acquisition on the condition that, among other things, our and Shinsegi Telecom’s combined market share in the wireless telecommunications market, based on numbers of subscribers, be less than 50% as of June 30, 2001. In order to satisfy this condition, we reduced the level of our subscriber activations and adopted more stringent involuntary subscriber deactivation policies beginning in 2000 and ceased accepting new subscribers from April 1, 2001 through June 30, 2001. While we are no longer subject to any market share limitations, the Government may impose restrictions on our market share in the future. If we become subject to market share limitations, our ability to compete effectively will be impeded.

The additional regulation to which we are subject has affected our competitiveness in the past and may materially hurt our profitability and impede our ability to compete effectively against our competitors in the future.

Concerns that radio frequency emissions may be linked to various health concerns could adversely affect our business and we could be subject to litigation relating to these health concerns.

In the past, allegations that serious health risks may result from the use of wireless telecommunications devices or other transmission equipment have adversely affected share prices of some wireless telecommunications companies in the United States. In May 2011, the International Agency for Research on Cancer (“IARC”) announced that it has classified radiofrequency electromagnetic fields associated with wireless phone use as possibly carcinogenic to humans, based on an increased risk for glioma, a malignant type of brain cancer. The IARC is part of the World Health Organization that conducts research on the causes of human cancer and the mechanisms of carcinogenesis, and aims to develop scientific strategies for cancer control. We cannot assure you that these health concerns will not adversely affect our business. Several class action and personal injury lawsuits have been filed in the United States against several wireless phone manufacturers and carriers, asserting product liability, breach of warranty and other claims relating to radio transmissions to and from wireless phones. Certain of these lawsuits have been dismissed. We could be subject to liability or incur significant costs defending lawsuits brought by our subscribers or other parties who claim to have been harmed by or as a result of our services. In addition, the

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actual or perceived risk of wireless telecommunications devices could have an adverse effect on our business by reducing our number of subscribers or our usage per subscriber.

A global or Korean economic downturn may have a material adverse impact on our business and the ability to meet our funding needs, and could cause the market value of the common shares and American Depositary Shares (“ADSs”) to decline.

In recent years, difficulties affecting the global financial sectors, adverse conditions and volatility in the worldwide credit and financial markets, fluctuations in oil and commodity prices and the general weakness of the global economy have increased the uncertainty of global economic prospects in general and have adversely affected the global and Korean economies. The legislators and financial regulators in the United States and other jurisdictions, including Korea, have implemented a number of policy measures designed to add stability to financial markets. The overall impact of these legislative and regulatory efforts on the global financial markets continues to be uncertain, and they may not have the intended stabilizing effects.

We are exposed to risks related to changes in the global and Korean economic environments, changes in interest rates and instability in the global financial markets. Adverse global and Korean economic conditions may lead to overall decline and volatility in securities prices of Korean companies, including ours, which may result in trading and valuation losses on our trading and investment securities portfolio. Increases in credit spreads, as well as limitations on the availability of credit resulting from heightened concerns about the stability of the markets generally and the strength of counterparties specifically may lead many lenders and institutional investors to reduce or cease providing funding to borrowers, which may negatively impact our liquidity and results of operations. Major market disruptions and adverse changes in economic conditions and regulatory climate may further impair our ability to meet our desired funding needs. We cannot predict future changes in economic conditions. Adverse developments in the global or Korean economies or financial markets may have a material adverse effect on our business and the ability to meet our funding needs, as well as negatively affect the market prices of the common shares and ADSs.

Depreciation of the value of the Won against the Dollar and other major foreign currencies may have a material adverse effect on our results of operations and the market value of our common shares and ADSs.

Substantially all of our revenues are denominated in Won. Depreciation of the Won may materially affect our results of operations because, among other things, it causes:

| • | an increase in the amount of Won required by us to make interest
and principal payments on our foreign currency-denominated
debt; and |
| --- | --- |
| • | an increase, in Won terms, of the costs of equipment that we
purchase from overseas sources which we pay for in Dollars or
other foreign currencies. |

Fluctuations in the exchange rate between the Won and the Dollar will affect the Dollar equivalent of the Won price of the shares of our common stock on the KRX KOSPI Market of the Korea Exchange, or the KRX KOSPI Market. These fluctuations also will affect:

| • | the amounts a registered holder or beneficial owner of ADSs will
receive from the American Depositary Receipt (“ADR”)
depositary in respect of dividends, which will be paid in Won to
the ADR depositary and converted by the ADR depositary into
Dollars; |
| --- | --- |
| • | the Dollar value of the proceeds that a holder will receive upon
sale in Korea of the common shares; and |
| • | the secondary market price of the ADSs. |

For historical exchange rate information, see “Item 3.A. Selected Financial Data — Exchange Rates”.

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Risks Relating to Korea

Korea is our most important market, and our current business and future growth could be materially and adversely affected if economic conditions in Korea deteriorate.

We are incorporated in Korea, and a significant portion of our operations is based in Korea. As a result, we are subject to political, economic, legal and regulatory risks specific to Korea. The economic indicators in Korea in recent years have shown mixed signs, and future growth of the Korean economy is subject to many factors beyond our control.

Recent difficulties affecting the U.S. and global financial sectors, adverse conditions and volatility in the worldwide credit and financial markets, fluctuations in oil and commodity prices and the general weakness of the U.S. and global economy have increased the uncertainty of global economic prospects in general and have adversely affected, and may continue to adversely affect, the Korean economy. Due to recent liquidity and credit concerns and volatility in the global financial markets, the value of the Won relative to the U.S. dollar has also fluctuated significantly in recent years. Furthermore, as a result of adverse global and Korean economic conditions, there has been continuing volatility in the stock prices of Korean companies. Any future deterioration of the Korean or global economy could adversely affect our business, financial condition, results of operations and cash flows.

Developments that could have an adverse impact on Korea’s economy in the future include:

| • | difficulties in the housing and financial sectors in the United
States and elsewhere and increased sovereign default risks in
selected countries and the resulting adverse effects on the
global financial markets; |
| --- | --- |
| • | adverse changes or volatility in foreign currency reserve
levels, commodity prices (including oil prices), exchange rates
(including fluctuation of the U.S. dollar or Japanese Yen
exchange rates or revaluation of the Chinese Renminbi), interest
rates and stock markets; |
| • | continuing adverse conditions in the economies of countries that
are important export markets for Korea, such as the United
States, Japan and China, or in emerging market economies in Asia
or elsewhere; |
| • | substantial decreases in the market prices of Korean real estate; |
| • | increasing delinquencies and credit defaults by consumer and
small- and medium-sized enterprise borrowers; |
| • | declines in consumer confidence and a slowdown in consumer
spending; |
| • | the continued emergence of the Chinese economy, to the extent
its benefits (such as increased exports to China) are outweighed
by its costs (such as competition in export markets or for
foreign investment and the relocation of the manufacturing base
from Korea to China); |
| • | social and labor unrest; |
| • | a decrease in tax revenues and a substantial increase in the
Korean government’s expenditures for fiscal stimulus
measures, unemployment compensation and other economic and
social programs that, together, would lead to an increased
Korean government budget deficit; |
| • | financial problems or lack of progress in the restructuring of
Korean conglomerates, other large troubled companies, their
suppliers or the financial sector; |
| • | loss of investor confidence arising from corporate accounting
irregularities and corporate governance issues at certain Korean
conglomerates; |
| • | the economic impact of any pending or future free trade
agreements, including the free trade agreements with the United
States and the European Union; |
| • | geo-political uncertainty and risk of further attacks by
terrorist groups around the world; |
| • | the recurrence of severe acute respiratory syndrome or an
outbreak of swine or avian flu in Asia and other parts of the
world; |

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| • | deterioration in economic or diplomatic relations between Korea
and its trading partners or allies, including deterioration
resulting from trade disputes or disagreements in foreign policy; |
| --- | --- |
| • | political uncertainty or increasing strife among or within
political parties in Korea; |
| • | the occurrence of severe earthquakes, tsunamis or other natural
disasters in Korea and other parts of the world, particularly in
trading partners (such as the March 2011 earthquake and tsunami
in Japan, which also resulted in the release of radioactive
materials from a nuclear plant that had been damaged by the
earthquake); |
| • | hostilities or political or social tensions involving oil
producing countries in the Middle East and North Africa and any
material disruption in the supply of oil or increase in the
price of oil; and |
| • | an increase in the level of tensions or an outbreak of
hostilities between North Korea and Korea or the United States. |

Increased tensions with North Korea could have an adverse effect on us and the market value of the common shares and ADSs.

Relations between Korea and North Korea have been tense throughout Korea’s modern history. The level of tension between the two Koreas has fluctuated and may increase abruptly as a result of current and future events. In recent years, there have been heightened security concerns stemming from North Korea’s nuclear weapons and long-range missile programs and increased uncertainty regarding North Korea’s actions and possible responses from the international community. In January 2003, North Korea renounced its obligations under the Nuclear Non-Proliferation Treaty. Since the renouncement, Korea, the United States, North Korea, China, Japan and Russia have held numerous rounds of six party multi-lateral talks in an effort to resolve issues relating to North Korea’s nuclear weapons program.

In addition to conducting test flights of long-range missiles, North Korea announced in October 2006 that it had successfully conducted a nuclear test, which increased tensions in the region and elicited strong objections worldwide. In May 2009, North Korea announced that it had successfully conducted a second nuclear test and test-fired three short-range surface-to-air missiles. In response, the United Nations Security Council unanimously passed a resolution in June 2009 that condemned North Korea for the nuclear test and decided to expand and tighten sanctions against North Korea. In March 2010, a Korean warship was destroyed by an underwater explosion, killing many of the crewmen on board. The government formally accused North Korea of causing the sinking in May 2010, and North Korea has denied responsibility for the sinking and has threatened retaliation for any attempt to punish it for the act. In November 2010, North Korean forces fired more than one hundred artillery shells targeting Yeonpyeong Island located near the maritime border between Korea and North Korea on the west coast of the Korean peninsula, killing two Korean soldiers and two civilians as well as causing substantial property damage. Korea responded by firing approximately 80 artillery shells and putting the military on its highest alert level. The Government condemned North Korea for the act and vowed stern retaliation should there be further provocation.

In addition, there recently has been increased uncertainty with respect to the future of North Korea’s political leadership and concern regarding its implications for political stability in the region. In September 2010, Kim Jong-il, the North Korean ruler who reportedly suffered a stroke in August 2008, named Kim Jong-un, his third son who is reported to be in his twenties, as the vice chairman of the Central Military Commission and the general of the North Korean army. Although Kim Jong-il has designated his son to be his successor, the implementation of the succession plan remains uncertain. North Korea’s economy also faces severe challenges. In November 2009, the North Korean government redenominated its currency at a ratio of 100 to 1 as part of a currency reform undertaken in an attempt to control inflation and reduce income gaps. Such developments may further aggravate social and political tensions within North Korea.

Over the longer term, reunification of the two Koreas could occur. Reunification may entail a significant economic commitment by Korea. In President Lee Myung Bak’s national address in August 2010, he suggested the possible adoption of a reunification tax in order to prepare for the long-term economic burden associated with reunification. Such discussions on reunification are preliminary, and it has not been decided whether or when such tax would be implemented. If a reunification tax is implemented, it may lead to a decrease in domestic consumption,

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which in turn may have a material adverse effect on the Korean economy. In addition, there can be no assurance that the level of tension on the Korean peninsula will not escalate in the future. Any further increase in tension, which may occur, for example, if North Korea experiences a leadership crisis, high-level contacts between Korea and North Korea break down or military hostilities occur, could have a material adverse effect on our business, financial condition and results of operations and the market value of our common stock and ADSs.

Korea’s legislation allowing class action suits related to securities transactions may expose us to additional litigation risk.

The Securities-related Class Action Act of Korea enacted in January 2004 allows class action suits to be brought by shareholders of companies (including us) listed on the KRX KOSPI Market for losses incurred in connection with purchases and sales of securities and other securities transactions arising from (i) false or inaccurate statements provided in the registration statements, prospectuses, business reports and audit reports and omission of material information in such documents, (ii) insider trading, (iii) market manipulation and (iv) unfair trading. This law permits 50 or more shareholders who collectively hold 0.01% of the shares of a company to bring a class action suit against, among others, the issuer and its directors and officers. Because of the relatively recent enactment of the act, there is not enough judicial precedent to predict how the courts will apply the law. Litigation can be time-consuming and expensive to resolve, and can divert management time and attention from the operation of a business. We are not aware of any basis upon which such suit may be brought against us, nor are any such suits pending or threatened. Any such litigation brought against us could have a material adverse effect on our business, financial condition and results of operations.

Risks Relating to Securities

If SK Holdings causes us to breach the foreign ownership limitations on shares of our common stock, we may experience a change of control.

The Telecommunications Business Act currently sets a 49% limit on the aggregate foreign ownership of our issued shares. Under the Telecommunications Business Act, as amended, a Korean entity, such as SK Holdings, is deemed to be a foreign entity if its largest shareholder (determined by aggregating the shareholdings of such shareholder and its related parties) is a foreigner and such shareholder (together with the shareholdings of its related parties) holds 15% or more of the issued voting stock of the Korean entity. As of December 31, 2010, SK Holdings owned 18,748,452 shares of our common stock, or approximately 23.22%, of our issued shares. If SK Holdings were considered to be a foreign shareholder, then its shareholding in us would be included in the calculation of our aggregate foreign shareholding and our aggregate foreign shareholding (based on our foreign ownership level as of December 31, 2010, which we believe was 49.0%) would exceed the 49% ceiling on foreign shareholding. As of December 31, 2010, a foreign investment fund and its related parties collectively held a 3.1% stake in SK Holdings. We could breach the foreign ownership limitations if the number of shares of our common stock or ADSs owned by other foreign persons significantly increases.

If our aggregate foreign shareholding limit is exceeded, the KCC may issue a corrective order to us, the breaching shareholder (including SK Holdings if the breach is caused by an increase in foreign ownership of SK Holdings) and the foreign investment fund and its related parties who own in the aggregate 15% or more of SK Holdings. Furthermore, if SK Holdings is considered a foreign shareholder, it may not exercise its voting rights with respect to the shares held in excess of the 49% ceiling, which may result in a change in control of us. In addition, the KCC may refuse to grant us licenses or permits necessary for entering into new telecommunications businesses until our aggregate foreign shareholding is reduced to below 49%. For a description of further actions that the KCC could take, see “Item 4.B. Business Overview — Law and Regulation — Foreign Ownership and Investment Restrictions and Requirements”.

If our convertible notes are converted by foreign holders and such conversion causes a violation of the foreign ownership restrictions of the Telecommunications Business Act, or in certain other circumstances, we may sell common stock in order to settle the converting holders’ conversion rights in cash in lieu of delivering common stock or ADSs to them, and these sales might adversely affect the market price of our common stock or ADSs.

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In April 2009, we sold US$332.5 million in 1.75% convertible notes due 2014, all of which currently remain outstanding. As of June 1, 2011, these convertible notes were convertible by the holders into shares of our common stock at the rate of Won 211,271 per share. These notes are held principally by foreign holders. If (1) the exercise by the holder of the conversion right would be prohibited by Korean law or we reasonably conclude that the delivery of common stock or ADSs upon conversion of these notes would result in a violation of applicable Korean law or (2) we do not have a sufficient number of shares of our common stock to satisfy the conversion right, then we will pay a converting holder a cash settlement payment. In such situations, we may sell such number of treasury shares held in trust for us that corresponds to the number of shares of common stock that would have been deliverable in the absence of the 49% foreign shareholding restrictions imposed by the Telecommunications Business Act or other legal restrictions. The number of shares sold in these circumstances might be substantial. We cannot assure you that such sales would not adversely affect the market prices of our common stock or ADSs.

Sales of our shares by SK Holdings and/or other large shareholders may adversely affect the market value of the common stock and ADSs.

Sales of substantial amounts of shares of our common stock, or the perception that such sales may occur, could adversely affect the prevailing market price of the shares of our common stock or ADSs or our ability to raise capital through an offering of our common stock.

As of December 31, 2010, SK Holdings owned 23.22% of our total issued common stock and has not agreed to any restrictions on its ability to dispose of our shares. See “Item 7.A. Major Shareholders”. We can make no prediction as to the timing or amount of any sales of our common stock. We cannot assure you that future sales of shares of our common stock, or the availability of shares of our common stock for future sale, will not adversely affect the market prices of the shares of our common stock or ADSs prevailing from time to time.

If an investor surrenders his or her ADSs to withdraw the underlying shares, he or she may not be allowed to deposit the shares again to obtain ADSs.

Under the deposit agreement, holders of shares of our common stock may deposit those shares with the ADR depositary’s custodian in Korea and obtain ADSs, and holders of ADSs may surrender ADSs to the ADR depositary and receive shares of our common stock. However, under the terms of the deposit agreement, as amended, the depositary bank is required to obtain our prior consent to any such deposit if, after giving effect to such deposit, the total number of shares of our common stock represented by ADSs, which was 24,321,893 shares as of June 1, 2011, exceeds a specified maximum, subject to adjustment under certain circumstances. In addition, the depositary bank or the custodian may not accept deposits of our common shares for issuance of ADSs under certain circumstances, including (1) if it has been determined by us that we should block the deposit to prevent a violation of applicable Korean laws and regulations or our articles of incorporation or (2) if a person intending to make a deposit has been identified as a holder of at least 3% of our common stock. See “Item 10.B. Memorandum and Articles of Incorporation — Description of American Depositary Shares”. It is possible that we may not give the consent. Consequently, an investor who has surrendered his or her ADSs and withdrawn the underlying shares may not be allowed to deposit the shares again to obtain ADSs.

An investor in our ADSs may not be able to exercise preemptive rights for additional new shares and may suffer dilution of his or her equity interest in us.

The Korean Commercial Code and our articles of incorporation require us, with some exceptions, to offer shareholders the right to subscribe for new shares in proportion to their existing ownership percentage whenever new shares are issued. If we offer a right to subscribe for additional new shares of our common stock or any other rights of similar nature, the ADR depositary, after consultation with us, may make the rights available to an ADS holder or use reasonable efforts to dispose of the rights on behalf of the ADS holder and make the net proceeds available to the ADS holder. The ADR depositary, however, is not required to make available to an ADS holder any rights to purchase any additional shares unless it deems that doing so is lawful and feasible and:

• a registration statement filed by us under the Securities Act is in effect with respect to those shares; or

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• the offering and sale of those shares is exempt from, or is not subject to, the registration requirements of the Securities Act.

We are under no obligation to file any registration statement with respect to any ADSs. If a registration statement is required for an ADS holder to exercise preemptive rights but is not filed by us, the ADS holder will not be able to exercise his or her preemptive rights for additional shares. As a result, ADS holders may suffer dilution of their equity interest in us.

Short selling of our ADSs by purchasers of securities convertible or exchangeable into our ADSs could materially adversely affect the market price of our ADSs.

SK Holdings, through one or more special purpose vehicles, has engaged and may in the future engage in monetization transactions relating to its ownership interest in us. These transactions have included and may include offerings of securities that are convertible or exchangeable into our ADSs. Many investors in convertible or exchangeable securities seek to hedge their exposure in the underlying equity securities at the time of acquisition of the convertible or exchangeable securities, often through short selling of the underlying equity securities or similar transactions. Since a monetization transaction could involve debt securities linked to a significant number of our ADSs, we expect that a sufficient quantity of ADSs may not be immediately available for borrowing in the market to facilitate settlement of the likely volume of short selling activity that would accompany the commencement of a monetization transaction. This short selling and similar hedging activity could place significant downward pressure on the market price of our ADSs, thereby having a material adverse effect on the market value of ADSs owned by you.

A holder of our ADSs may not be able to enforce a judgment of a foreign court against us.

We are a corporation with limited liability organized under the laws of Korea. Substantially all of our directors and officers and other persons named in this document reside in Korea, and all or a significant portion of the assets of our directors and officers and other persons named in this document and substantially all of our assets are located in Korea. As a result, it may not be possible for holders of our ADSs to effect service of process within the United States, or to enforce against us any judgments obtained from the United States courts based on the civil liability provisions of the federal securities laws of the United States. There is doubt as to the enforceability in Korea, either in original actions or in actions for enforcement of judgments of United States courts, of civil liabilities predicated on the United States federal securities laws.

We are generally subject to Korean corporate governance and disclosure standards, which may differ from those in other countries.

Companies in Korea, including us, are subject to corporate governance standards applicable to Korean public companies, which may differ in some respects from standards applicable in other countries, including the United States. As a reporting company registered with the U.S. Securities and Exchange Commission and listed on the New York Stock Exchange, we are, and in the future will be, subject to certain corporate governance standards as mandated by the Sarbanes-Oxley Act of 2002. However, foreign private issuers, including us, are exempt from certain corporate governance requirements under the Sarbanes-Oxley Act or under the rules of the New York Stock Exchange. There may also be less publicly available information about Korean companies, such as us, than is regularly made available by public or non-public companies in other countries. Such differences in corporate governance standards and less public information available could result in corporate governance practices or disclosures that are perceived as less than satisfactory by investors in certain countries.

ITEM 4. INFORMATION ON THE COMPANY

Item 4.A. History and Development of the Company

As Korea’s first wireless telecommunications service provider, we have a recognized history of leadership and innovation in the domestic telecommunications sector. Today, we remain Korea’s leading wireless telecommunications services provider and have continued to pioneer the commercial development and implementation of state-of-the-art wireless technologies. We have also strengthened our global competitiveness by expanding into key

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overseas markets, and we continue to look outside Korea for investment and growth opportunities. We believe we are also a leader in developing new products and services that reflect the increasing convergence of telecommunications technologies, as well as the growing synergies between the telecommunications sector and other industries.

We provide our wireless telecommunications services principally through backbone networks using CDMA and WCDMA technologies. Collectively, these networks can access approximately 99% of the Korean population. In addition, we also provide wireless broadband Internet access through our WiBro service. For a more detailed description of our backbone network infrastructure, see “— Digital Cellular Network” below. Our advanced and extensive wireless telecommunications infrastructure has enabled us to offer high-quality cellular voice transmission services at competitive prices, as well as to develop and deploy an increasingly sophisticated range of wireless data and multimedia products and services, including wireless Internet services, in step with technological advancements and growing consumer demand. We believe our network infrastructure also provides us with a competitive advantage in pioneering new business opportunities created by digital convergence.

As of December 31, 2010, we had approximately 25.7 million wireless subscribers throughout Korea, of which 23.8 million owned Internet-enabled handsets capable of accessing our wireless Internet services. As of December 31, 2010, our share of the Korean wireless market was approximately 50.6%, based on number of subscribers, according to the KCC.

In March 2008, we completed the acquisition of an additional 38.7% equity stake in SK Broadband for approximately Won 1.1 trillion, increasing our total equity interest in SK Broadband to 43.4%. In September 2009, we acquired additional shares of SK Broadband’s common stock, increasing our equity stake to 50.6%. Through SK Broadband, we currently provide broadband Internet access service and other Internet-related services, including video-on-demand and Internet protocol TV, or IP TV, services, as well as fixed-line telephone services. As of December 31, 2010, we had approximately 4.0 million broadband Internet access subscribers and 3.8 million fixed-line telephone subscribers (including subscribers to VoIP services).

In September 2009, we completed the acquisition of leased-line business and related ancillary businesses of SK Networks for approximately Won 892.8 billion and assumed Won 611.4 billion of debt as part of the transaction. Historically, we have relied on KT and SK Networks to provide a substantial majority of the transmission lines we lease.

On June 1, 2011, we had a market capitalization of approximately Won 12.9 trillion (US$12.0 billion, as translated at the noon buying rate of June 1, 2011) or approximately 1.08% of the total market capitalization on the KRX KOSPI Market, making us the 19th largest company listed on the KRX KOSPI Market based on market capitalization on that date. Our ADSs, each representing one-ninth of one share of our common stock, have traded on the New York Stock Exchange since June 27, 1996.

We established our telecommunications business in March 1984 under the name of Korea Mobile Telecommunications Co., Ltd. We changed our name to SK Telecom Co., Ltd., effective March 21, 1997. In January 2002, we merged with Shinsegi, which was then the third-largest wireless telecommunications service provider in Korea. Our registered office is at SK T-Tower, 11, Euljiro 2-ga, Jung-gu, Seoul 100-999, Korea and our telephone number is 82-2-6100-2114.

Korean Telecommunications Industry

Established in March 1984, we became the first wireless telecommunications service provider in Korea. We remained the sole provider of wireless telecommunications services until April 1996, when Shinsegi commenced cellular service. The Government began to introduce competition into the fixed-line and wireless telecommunications services markets in the early 1990’s. During this period, the Government allowed new competitors to enter the fixed-line sector, sold a controlling stake in us to the SK Group, and granted a cellular license to our first competitor, Shinsegi. In October 1997, three additional companies, KTF, LG Telecom and Hansol PCS, began providing wireless services under Government licenses to provide wireless telecommunications services.

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In 2000 and 2001, the Korean wireless telecommunications market experienced significant consolidation. In January 2002, Shinsegi was merged into us. Additionally, two of the other wireless telecommunications services operators merged. See “Item 4.B. Business Overview — Competition”.

There are currently three providers of wireless voice telecommunications services in Korea: our company, KT (into which KTF merged) and LG U+ (formerly, LG Telecom). According to the KCC, as of December 31, 2010, the market share of the Korean wireless telecommunications market in terms of number of subscribers of KT and LG U+ was 31.6% and 17.8%, respectively (compared to our market share of 50.6%).

In December 2000, the MIC awarded to two companies the right to receive a license to provide 3G services using WCDMA, an extension of the Global System for Mobile Communication standard for wireless telecommunications, which is globally the most widely used wireless technology. These rights were awarded to two consortia of companies, one led by our former subsidiary, SK IMT Co., Ltd., and the other to a consortium that included KT. SK IMT Co., Ltd. was merged into us on May 1, 2004. The right to acquire an additional license to operate a network using CDMA2000 technology was awarded to LG Telecom in August 2001, but was later revoked in July 2006.

A one-way mobile number portability, or MNP, system was first implemented in the beginning of January 2004 when our subscribers were allowed to transfer to KTF and LG Telecom. From July 2004, a two-way MNP was implemented so that KTF subscribers could transfer to us and LG Telecom. A three-way MNP has been in effect since January 2005 so that subscribers from each of the wireless service providers may transfer to any other wireless service provider. During 2008, 2009 and 2010, approximately 3.0 million, 3.0 million and 3.6 million, respectively, of our subscribers migrated to our competitors. Approximately 0.6 million, 1.1 million and 1.3 million of LG U+’s subscribers in 2008, 2009 and 2010, respectively, and approximately 2.5 million, 2.0 million and 2.4 million of KT’s subscribers in 2008, 2009 and 2010, respectively, migrated to our service.

In January 2005, the Government granted each of KT and us a license to offer WiBro service. Both KT and we are currently expanding the coverage area of WiBro services.

Telecommunications industry growth in Korea has been among the most rapid in the world, with fixed-line penetration increasing from under five lines per 100 population in 1978 to 39.4 lines per 100 population as of December 31, 2010, and wireless penetration increasing from 7.0 subscribers per 100 population in 1996 to 103.9 subscribers per 100 population as of December 31, 2010. The table below sets forth certain subscription and penetration information regarding the Korean telecommunications industry as of the dates indicated:

2006	2007	2008	2009	2010
(In thousands, except for per population amounts)
Population of Korea(1)	48,297	48,456	48,607	48,747	48,875
Wireless Subscribers(2)	40,197	43,498	45,607	47,944	50,767
Wireless Subscribers per 100 Population	83.2	89.8	93.8	98.4	103.9
Telephone Lines in Service(2)	23,119	23,130	22,132	20,090	19,273
Telephone Lines per 100 Population	47.9	47.7	45.5	41.2	39.4

(1)	Source: National Statistical Office of Korea.
(2)	Source: KCC.

The Korean telecommunications industry is one of the most developed in the world in terms of wireless penetration and in terms of the growth of wireless data services, including wireless Internet services. The wireless penetration rate, which is calculated by dividing the number of wireless subscribers by the population, was 103.9% as of December 31, 2010 and the number of wireless subscribers has increased from approximately 3.2 million in 1996 to approximately 50.8 million as of December 31, 2010.

Since the introduction of short text messaging in 1998, Korea’s wireless data market has grown rapidly. This growth has been driven, in part, by the rapid development of wireless Internet service since its introduction in the second half of 1999. All of the Korean wireless operators have developed extensive wireless Internet service portals.

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As of December 31, 2010, approximately 48.1 million of Korean wireless subscribers owned Internet-enabled handsets capable of accessing wireless Internet services. The table below sets forth certain penetration information regarding the number of Internet-enabled handsets and wireless subscribers in Korea as of the dates indicated:

2006	2007	2008	2009	2010
(In thousands)
Number of Wireless Internet Enabled Handsets	38,894	41,598	42,740	46,301	48,085
Total Number of Wireless Subscribers	40,197	43,498	45,607	47,944	50,767
Penetration of Wireless Internet Enabled Handsets	96.8 %	95.6 %	93.7 %	96.6 %	94.7 %

Source: KCC.

In addition to its well-developed wireless telecommunications sector, Korea has one of the largest Internet markets in the Asia Pacific region. According to Korea Internet & Security Agency, or KISA, the number of Internet subscribers in Korea increased from approximately 3.1 million at the end of 1998 to approximately 37.0 million at the end of 2010, representing a 23.0% compound annual growth rate. From the end of 2005 to the end of 2010, the number of broadband Internet access subscribers increased from approximately 12.2 million to approximately 17.2 million, representing a 7.2% compound annual growth rate. The table below sets forth certain information regarding Internet users and broadband subscribers as of the dates indicated:

2006	2007	2008	2009	2010
(In thousands)
Number of Internet Users(1)	34,120	34,820	35,360	36,580	37,010
Number of Broadband Subscribers(2)	14,043	14,709	15,475	16,349	17,224

(1)	Source: KISA.
(2)	Source: KCC. Includes subscribers accessing Internet service
using digital subscriber line, or xDSL, connections; cable modem
connections; local area network, or LAN, connections; fiber-to-the-home, or FTTH, connections; and satellite connections.

Item 4.B. Business Overview

Overview

We are Korea’s leading wireless telecommunications services provider and continue to pioneer the commercial development and implementation of state-of-the-art wireless technologies. We provide the following core services:

| • | Cellular voice services. We provide wireless
voice transmission services to our subscribers through our
backbone cellular networks and also offer wireless global
roaming services through service agreements with various foreign
wireless telecommunications service providers. (Accordingly,
while “cellular voice services” principally refer to
our core wireless voice transmission services, they also
comprise our wireless voice and data global roaming services.) |
| --- | --- |
| • | Wireless data services. We also provide
wireless data transmission services, including wireless Internet
access services, which allow subscribers to access a wide range
of online digital contents and services, as well as to send and
receive text and multimedia messages, using their mobile phones. |
| • | Broadband Internet and fixed-line telephone
services. Through our consolidated subsidiary,
SK Broadband, we provide broadband Internet access service
and other Internet-related services, including video-on-demand and IP TV services. Through SK Broadband, we also provide local,
domestic long-distance and international long-distance
fixed-line telephone services to residential and commercial
subscribers. We currently own a 50.6% equity interest in SK
Broadband following our acquisition of a 7.2% equity stake in
the company in September 2009. |

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• Digital convergence and new businesses. We have pioneered new services that reflect the growing convergence within the telecommunications sector, as well as between the telecommunications sector and other industries, including 11th Street, an online shopping mall, and T Store, an online open marketplace for mobile applications, as well as “Telematics” service, which makes use of global positioning system, or GPS, technology. In addition, we engage in industry productivity enhancement, or IPE, business that provides customized business solutions and applications to corporate customers.

We provide our wireless services through our proprietary backbone networks based on CDMA and WCDMA technologies. We also offer wireless data transmission and wireless Internet access services through our WiBro network. For more information on our backbone networks, see “— Digital Cellular Network”.

Our Business Strategy

We believe that trends in the Korean telecommunications industry during the next decade will mirror those in the global market and will be characterized by rapid technological change, reduced regulatory barriers and increased competition. Against the backdrop of these industry trends, we aim to enhance shareholder value by maintaining and consolidating our leading position in the Korean market for wireless services, including wireless voice and data transmission services, as well as by leveraging our competitive strengths to exploit new opportunities arising from increasing digital convergence and the globalization of the telecommunications market.

Our principal strategies are to:

| • | Enhance the technical capabilities of our wireless networks
to improve data transmission speed and service quality and to
offer an increased range of services, including in connection
with our development of new and advanced wireless
technologies. We believe we have the most
extensive and advanced wireless telecommunications network in
Korea, and we are committed to ensuring that our delivery
platforms keep pace with the latest technological advancements.
In March 2007, we completed the nationwide build-out of our
HSDPA-capable WCDMA network. We are currently further upgrading
our WCDMA network to support HSUPA and HSPA+ technology and
expanding the coverage area of our WiBro service, as well as
introducing long term evolution, or LTE, service by July 2011.
We plan to continue upgrading and expanding our backbone network
infrastructure in line with new developments in wireless
telecommunications technology. We believe that ensuring the
quality and technical sophistication of our wireless networks
will, among other things, allow us to provide our subscribers
with top-quality service, to introduce the latest wireless
telecommunications products and services more quickly and to
efficiently implement new wireless technologies as market
opportunities arise. |
| --- | --- |
| • | Drive the growth of wireless Internet in
Korea. In recent years, the Korean
telecommunications industry has experienced significant growth
in wireless Internet services as the number of smartphone users
has increased rapidly. We plan to establish and maintain our
leadership among smartphone users by securing a competitive
smartphone line-up and
streamlining the subscription process and pricing structures to
enable subscribers to easily access their mobile content from
multiple devices. We also intend to focus on developing
differentiated services and various platforms in order to
achieve our goal of leading the Korean smartphone market. |
| • | Offer a broad range of new and innovative wireless data
contents and services. We plan to improve the
service quality and expand the range of our wireless data
contents and services, through NATE, with a view to increasing
revenues from these services to complement our core cellular
revenues. In particular, we believe demand for wireless access
to entertainment-related digital contents and services, wireless
access to community and social networking platforms and wireless
access to financial-related contents and services, or
“m-commerce” services, will continue to grow. We
continue to actively seek partnerships with, as well as
strategic investments in, digital media content providers,
financial services providers and wireless application developers
to improve the breadth and quality of the wireless data contents
and services we offer to our subscribers. We also intend to
expand the operation of T Store, our online application store,
by constructing an environment where outstanding developers can
be nurtured and high-quality content can be produced. |

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| • | Leverage our extensive network infrastructure, technical
know-how and leading market position to exploit opportunities
that arise from an increasingly convergent era in
telecommunications and to pioneer new
businesses. We believe that increasing
convergence among communications technologies, as well as
between the telecommunications sector and other industries,
creates growth opportunities for incumbent telecommunications
service providers, like us, whose existing infrastructure,
know-how and extensive subscriber base provide a competitive
advantage. We further believe that digital convergence will
support demand for increasingly integrated products and
services. We hope to create greater convergence opportunities
across our various network platforms through various
acquisitions, such as the acquisition of an equity stake in SK
Broadband, Korea’s second largest fixed-line operator, or
the acquisition of a leased-line business from SK Networks. We
also plan to continue to improve our new convergence services,
such as 11th Street, an online shopping mall, and T Store,
an online open marketplace for mobile applications. |
| --- | --- |
| • | Pursue platform business and industry productivity
enhancement business. We laid the foundation for
our platform business in 2010 by expanding various platforms,
including our T Store and MelOn music services, as well as
establishing support systems for third-party content developers.
We plan to grow our platform business by sharing our
telecommunication infrastructure with other service providers
and application developers. In addition, we plan to grow our
industry productivity enhancement, or IPE, business division to
generate greater value and growth for both us and our customers
and partners around the globe. IPE is a concept that endeavors
to provide customized value-added services such as applications
and solutions to clients in different businesses based on the
existing network infrastructure. Building on existing
infrastructures, we anticipate that value-added services to
business clients will generate greater revenues compared to the
current B2B business model. Once we establish prototypes
categorized by business and size of the business, we intend to
expand and apply such IPE models to other businesses in the same
field. We are in the process of working with various clients in
finance, education, health, shopping and other areas. |
| • | Continue global expansion by seeking opportunities in
overseas markets. We participate in various
overseas markets and continue to seek opportunities to expand
our global business. In light of the highly penetrated Korean
wireless market, we believe that strategic expansion into
overseas markets offers important opportunities for future
growth. |

Digital Cellular Network

We offer wireless voice and data telecommunications services throughout Korea using digital wireless networks, including a CDMA network, a WCDMA network, a WiBro network and a Wi-Fi network. We are currently building our LTE network with a goal of commencing commercial LTE services by July 2011.

CDMA Network

CDMA technology is a continuous digital transmission technology that accommodates higher throughput than analog technology by using various coding sequences to allow concurrent transmission of voice and data signals for wireless communication. In January 1996, we launched our first wireless network based on CDMA technology and became the world’s first to commercialize CDMA cellular service. Our CDMA-based network infrastructure has been the core platform for our wireless telecommunications business. CDMA technology is currently in commercial operation in several countries including Korea, Hong Kong and the United States.

In October 2000, we began offering wireless voice and data services on our CDMA2000 1X network. CDMA2000 1X is an advanced CDMA-based technology that allows transmission of data at speeds of up to 153.6 Kbps (compared to a maximum of 64 Kbps for our basic CDMA network). In the first half of 2002, we launched an upgrade of our CDMA2000 1X network to a more advanced technology called CDMA 1xEV-DO. CDMA 1xEV-DO is a CDMA-based technology, similar to CDMA2000 1X, but enables data to be transmitted at speeds of up to 2.4 Mbps. This higher transmission speed permits interactive transmission of data required for videophone services, a high-speed wireless Internet connection, as well as a multitude of multimedia services. In 2004, we completed the full upgrade of our CDMA2000 1X network to CDMA 1xEV-DO technology.

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WCDMA Network

WCDMA is a 3G, high capacity wireless communication system that enables us to offer an even wider range of telecommunications services, including cellular voice communications, video telephony, data communications, multimedia services, wireless Internet connection, and automatic roaming. We commenced provision of our 3G services using our HSDPA-upgraded WCDMA network on a limited basis in Seoul at the end of 2003. In March 2005, we developed and launched dual band/dual mode handsets, to offer seamless nationwide 3G service, an important factor for a nationwide deployment of WCDMA services.

In 2005, we completed commercial development of HSDPA technology and integrated this technology in the subsequent build-out of our WCDMA network. HSDPA, which represents an evolution of the WCDMA standard, is a more advanced 3G technology than the initial WCDMA technology we implemented and is sometimes referred to as “3.5G” technology. In March 2007, we completed nationwide expansion of our HSDPA-capable WCDMA network, which currently reaches approximately 99% of the Korean population. Our WCDMA network enables significantly faster and higher-quality voice and data transmission and supports more sophisticated wireless data transmission services, including video telephony and other multimedia communications, than is possible through our 2G networks. In June 2007, we began HSUPA upgrades to our WCDMA network, which is currently in progress. HSUPA technology represents the next stage in the evolution of the WCDMA standard. In particular, while HSDPA enables significantly improved downlink data transmission speeds, HSUPA permits faster uplink speeds. We are also currently implementing upgrades to enable more evolved high speed packet access, or HSPA+, service. Our implementation of HSDPA, HSUPA and HSPA+ technology will allow us to offer significantly improved, and a wider range of, wireless data transmission services, including more sophisticated multimedia digital contents and products. We also plan to continue enhancing our 3G service quality, including through the installation of additional small cell sites or cellular repeaters to improve reception quality in subterranean areas, buildings or any remaining “blind spots” where reception quality may not be optimal. For more information about our capital expenditures relating to our WCDMA-based network, see “Item 5.B. Liquidity and Capital Resources”.

WiBro Network

We received a license from the MIC in 2005 to provide wireless broadband, or WiBro services, which we believe will complement our existing networks and technologies. WiBro is a data-only transmission technology that enables high-speed wireless broadband access to portable computers, mobile phones and other portable devices. We conducted initial pilot testing of WiBro service in limited areas of metropolitan Seoul in May 2006 and currently service “hot zone” areas in 84 cities.

Wi-Fi Network

Wi-Fi technology enables our subscribers with Wi-Fi-capable devices such as smartphones, laptops and tablet computers to access mobile Internet at a speed faster than WCDMA or WiBro networks, while the service range of each Wi-Fi hot zone is smaller than that of WCDMA or WiBro networks. We started to build our Wi-Fi hot zones from 2010 and, as of March 31, 2011, we had more than 32,000 Wi-Fi hot zones in public areas such as shopping malls, restaurants, coffee shops, subways and airports where, generally, the demand for high-speed wireless Internet service is high. While each Wi-Fi hot zone typically has a radius of approximately 20-30 meters, some of our Wi-Fi hot zones, including those installed at public transportation facilities and amusement parks, have much wider service areas. We plan to increase the number of Wi-Fi hot zones substantially, as well as provide Wi-Fi services in the 5GHz range, where the radio traffic is light, in order to reduce radio interference and increase speed.

LTE Network

We are currently building more advanced networks based on LTE technology, which is generally referred to as a 4G technology, with a goal of commencing commercial LTE services by July 2011. Several wireless carriers in the United States, Europe and Asia commenced LTE services in 2010 and 2011 and LTE technology is expected to be widely accepted globally as the standard 4G technology. LTE technology enables data to be transmitted at a speed faster than WCDMA or WiBro networks, up to 75 Mbps for downloading and up to 37.5 Mbps for uploading. We expect that the faster data transmission speed of the LTE network will allow us to offer significantly improved

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wireless data transmission services, providing our subscribers with faster wireless access to multimedia content. We are building new access networks and evolved packet cores for our LTE network, while we plan to utilize our existing WCDMA network for other parts of our LTE network.

Network infrastructure

The principal components of our wireless networks are:

| • | Cell sites, which are physical locations equipped with
transmitters, receivers and other equipment that communicate by
radio signals with wireless handsets within range of the cell
(typically a 3 to 40 kilometer radius); |
| --- | --- |
| • | Switching stations, which switch voice and data
transmissions to their proper destinations, which may be, for
instance, a mobile phone of one of our subscribers (for which
transmissions would originate and terminate on our wireless
networks), a mobile phone of a KT or LG U+ subscriber (for which
transmissions would be routed to KT’s or LG U+’s
wireless networks, as applicable), a fixed-line telephone number
(for which calls would be routed to the public switched
telephone network of a fixed-line network operator), an
international number (for which calls would be routed to the
network of a long distance service provider) or an Internet
site; and |
| • | Transmission lines, which link cell sites to switching
stations and switching stations with other switching stations. |

As of December 31, 2010, our CDMA, WCDMA and WiBro networks had an aggregate of 17,483 cell sites.

We have purchased substantially all of the equipment for our CDMA network from Samsung Electronics and have purchased substantially all of the equipment for our WCDMA network, including the software and firmware used to upgrade our WCDMA network, from Samsung Electronics and LG Ericsson. We have purchased substantially all of the equipment for our WiBro network from Samsung Electronics. We plan to purchase substantially all of the equipment for our LTE network from Samsung Electronics, LG Ericsson and Nokia Siemens Networks.

Most of the transmission lines we use, including virtually all of the lines linking switching stations, as well as a portion of the lines linking cell sites to switching stations, comprise optical fiber lines that we own and operate directly. However, we have not undertaken to install optical fiber lines to link every cell site and switching station. In places where we have not installed our own transmission lines, we have leased lines from SK Networks, KT and, to a lesser extent, SK Broadband and LG U+. In September 2009, we acquired a leased-line business and related ancillary businesses from SK Networks for Won 892.8 billion and assumed Won 611.4 billion of debt as part of the transaction. We intend to increase the efficiency of our network utilization and provide optimal services by internalizing transmission lines.

We use a cellular network surveillance system. This system oversees the operation of cell sites and allows us to monitor our main equipment located throughout the country from one monitoring station. The automatic inspection and testing provided to the cell sites lets the system immediately rebalance to the most suitable setting, and the surveillance system provides automatic dispatch of repair teams and quick recovery in emergency situations.

Our Services

We offer wireless digital voice and data transmission services via networks that collectively can access approximately 99% of the Korean population. We continually upgrade and increase the capacity of our wireless networks to keep pace with advancements in technology, the growth of our subscriber base and the increased usage of voice and wireless data services by our subscribers.

For a discussion of our backbone networks, see “— Digital Cellular Network” above.

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Cellular Voice Services

Our cellular voice services, which comprise basic wireless voice transmission services and related “value-added” services, as well as global roaming services, remain our core business area. We derive revenues from our cellular voice services principally through initial subscription fees, plan-specific monthly fees, usage fees and value-added service fees. For a more complete description of the fees we charge, see “— Revenues, Rates and Subscription Deposits” below.

To complement our basic voice transmission services, in recent years, we have begun to offer increasingly sophisticated and differentiated subscriber-oriented value-added services made possible due to rapid advancements in network technology. Our most popular value-added voice-related services in 2010 included services that provide a record of missed calls in the event a subscriber’s mobile phone is engaged or switched off, known as our “Call Keeper” service; services that play a “ring back” melody in lieu of a conventional dial tone when callers dial a subscriber’s mobile phone, known as “COLORing” service, as well as COLORing services that periodically change the default ring-back melody according to the subscriber’s music category selection, known as “Auto COLORing” service, and services that alert subscribers when a dialed number that was engaged when first dialed is no longer engaged.

We also offer cellular global roaming services, branded as our “T-Roaming” service, through service agreements with various foreign wireless telecommunications service providers. Global roaming services allow subscribers traveling abroad to make and receive calls, often using their regular mobile phone numbers. Subscribers using EV-DO-and WCDMA-capable handsets are able to make and receive calls using their regular mobile phone number without changing their handsets. In addition, we provide global roaming service to foreigners traveling to Korea. In such cases, we generally receive a fee from the traveler’s local wireless service provider.

Our global roaming service is offered in three technologies, in part depending on which mobile phone standards are available in a particular region: CDMA, GSM and WCDMA roaming. We currently offer CDMA voice roaming services in 19 countries, GSM voice roaming services in 183 countries and WCDMA voice roaming services in 74 countries. In addition, we offer CDMA data roaming services in 9 countries, GSM data roaming services in 76 countries and WCDMA data roaming services in 72 countries. In 2010, approximately 7.6 million subscribers utilized our global roaming services.

In addition, we provide interconnection service to connect our networks to domestic and international fixed-line and other wireless networks. See “— Interconnection” below.

Wireless Data Services (including Wireless Internet Services)

Our wireless data transmission services represent a key and growing business area. We currently offer our subscribers wireless data communications services, as well as wireless access to a wide variety of digital content and services, including Internet-based content and services. We intend to continue to build our wireless data services as a platform for growth, extending our portfolio of wireless data services and developing new content for our subscribers.

We plan to take advantage of the efficiency of our wireless network in order to enable our clients to easily access the Internet. We are in the process of expanding and upgrading our main 3G network, as well as building an LTE network for commercialization by July 2011. We also continue to invest in our Wi-Fi network by, among other things, utilizing WiBro as a backhaul. We plan to increase the number of Wi-Fi hot zones substantially, as well as provide Wi-Fi services in the 5GHz range, where the radio traffic is light, in order to reduce radio interference and increase speed.

SMS and MMS Services. We provide wireless data communication services, including our basic short text message service, or SMS, which allows subscribers to send and receive short text messages to and from their mobile phones and other devices. SMS, which is also known as our “phone mail” service, continues to be one of our most popular data transmission services. In addition to text-only SMS, we also offer a multimedia message service, or MMS. MMS allows subscribers to send and receive multimedia messages containing graphic, audio and video clips to and from their mobile phones. While MMS is possible through our CDMA network, the implementation of WCDMA technology has significantly increased the quality, speed and range of our multimedia message services.

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Wireless Internet Services. In addition to our wireless data communications services, we also offer our subscribers wireless access to the Internet, primarily through our “NATE” portal, which is our integrated wired and wireless Internet platform that utilizes wireless application protocol, or WAP, technology, to provide a gateway between our cellular network and the Internet. We also provide our smartphone subscribers with direct access to the Internet using mobile Internet technology. Through our NATE portal, subscribers can access a wide variety of multimedia contents and interactive services, as well as send and receive email and instant text and multimedia messages, using their mobile phones and other wireless devices. As of December 31, 2010, approximately 23.8 million, or 92.7%, of our subscribers owned Internet-enabled handsets capable of accessing our wireless Internet services.

• Wireless Entertainment and Community Services : We offer our subscribers a wide range of wireless entertainment-related contents and services, primarily through content-specific portal sites that we operate, including:

| • | MelOn, a music portal operated by our consolidated
subsidiary, Loen Entertainment, Inc., that provides wireless
access to a wide range of digital music contents. To aggregate
and manage our digital music contents offerings, we also operate
an integrated wireless and fixed-line MelOn website, which
subscribers can access using wireless devices, such as their
mobile phones, smartphones, tablet computers and
MP3 players, as well as fixed-line devices, such as
personal computers. As of December 31, 2010, we had
approximately 14.9 million subscribers to our MelOn service; |
| --- | --- |
| • | Gaming Services, which we offer subscribers through our
NATE portal. For example, we offer a variety of multi-player,
interactive mobile games, as well as animation-based mobile
games. In addition, we also offer 3D mobile games that
subscribers can download to mobile phones and other wireless
devices equipped with a mobile gaming-specific chip; |
| • | Nate Movie, a movie portal, which provides subscribers
access to a broad range of movie-related contents. As with our
MelOn service, we operate an integrated wireless and fixed-line
website, which subscribers can access using both wireless and
fixed-line devices. Subscribers can also purchase movie tickets,
check theater schedules and purchase video-on-demand contents through our Nate portal; and |
| • | Mobile Cyworld, a wireless web community portal site,
which is a mobile version of the Cyworld community site operated
by our subsidiary, SK Communications Co., Ltd. For a more
detailed description of the fixed-line Cyworld portal, see
“— Other Products and Services — Other
Portal Services — Community Portal Service”. |

• Wireless Financial and Commercial Services : We also offer our subscribers a range of wireless finance-related contents and m-commerce services. Our wireless financial and commercial businesses include:

| • | Moneta, a financial portal that allows subscribers to use
their mobile phones to access an array of financial contents and
services relating to securities trading, insurance, real estate
and personal asset management; |
| --- | --- |
| • | T-cash, a mobile payment technology that allows
subscribers to use their mobile phones to pay for public
transportation fares in lieu of cash payment or pre-paid
transportation cards and to make payments at certain affiliated
stores. T-cash requires a WCDMA-capable handset with a built-in
universal subscriber identity module, or USIM, card; |
| • | M-Banking, a banking portal, which provides access to
certain electronic banking services operated by participating
commercial banks, and, accordingly, enables subscribers to
perform certain banking transactions, such as account inquiries,
wire transfers and credit card payments, through their mobile
phones; |
| • | 11 th Street, an online shopping mall that links wired and
wireless shopping services. As of December 31, 2010,
11th Street had strengthened its position as one of the
three biggest enterprises in its field. In 2011, we intend to
continue to expand and reinforce our new businesses to
capitalize on future commerce markets such as m-Commerce markets; |

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| • | T Store , an online open marketplace for mobile
applications. T Store is open to, and operates with, other open
markets such as the Android market and manufacturers’ open
markets. We plan to construct an environment where outstanding
developers of mobile applications can be nurtured and
high-quality content can be produced; and |
| --- | --- |
| • | Gifticon, a service that allows users to pay for and give
gifts using their mobile phone. Payments are settled wirelessly
and recipients are notified of their gifts by instant messaging
or via our NATE data service. |

• Wireless News and Search Services : We offer our subscribers a range of wireless news and search services, including access to domestic and international news content, dictionary resources and real-time weather information. Subscribers can also search for and purchase books, DVD’s, CDs and lottery tickets, as well as download discount coupons for use at offline stores.

Broadband Internet and Fixed-line Telephone Services

In March 2008, we completed the acquisition of an additional 38.7% equity stake in SK Broadband for approximately Won 1.1 trillion, increasing our total equity interest in SK Broadband to 43.4%. In 2009, we purchased additional shares of SK Broadband’s common stock, further increasing our equity interest to 50.6%. Through SK Broadband, we currently provide broadband Internet access service and other Internet-related services, including video-on-demand and IP TV services, as well as fixed-line telephone services and corporate data services.

SK Broadband is the second largest provider of broadband Internet access services in Korea in terms of both revenue and subscribers, and its network covers 85% of households in Korea as of December 31, 2010. Its fixed-line telephone services comprise local, domestic long distance, international long distance and voice over Internet Protocol, or VoIP, services. VoIP is an advanced technology that transmits voice data through an Internet Protocol network. SK Broadband has offered video-on-demand services since 2006 and has rolled out real-time IP TV services since January 2009. For the year ended December 31, 2010, SK Broadband had revenues of Won 2,111.8 billion and net loss of Won 60.6 billion.

As of December 31, 2010, SK Broadband had approximately 4.0 million broadband Internet access subscribers. According to the KCC, its market share of Korean broadband Internet access subscribers was approximately 20.9%. Broadband Internet access services (including revenues from video-on-demand services) accounted for 52.4% of SK Broadband’s revenues for the year ended December 31, 2010.

As of December 31, 2010, SK Broadband had approximately 3.8 million fixed-line telephone subscribers (including subscribers to VoIP services). Since the nationwide implementation of fixed line number portability on August 1, 2004, SK Broadband has been expanding the coverage and subscriber base with its integrated services of long distance and international telephony as well as VoIP services. Fixed-line telephone services accounted for 27.3% of SK Broadband’s revenues for the year ended December 31, 2010.

In addition, through our 83.5% owned subsidiary, SK Telink Co., Ltd., we provide international telecommunications services, including direct-dial as well as pre- and post-paid card calling services, bundled services for corporate customers, voice services using Internet protocol, Web-to-phone services, and data services. SK Telink provides affordable international call services under the brand name “00700” and has been offering commercial long-distance telephony service since February 2005. SK Telink also operates certain value-added domestic telephone services, including a “080” service that allows companies to establish “toll-free” customer service telephone hotlines, for which all call charges are paid by the company, as well as a “general corporate number” service that automatically routes calls made to a company’s general telephone number to the caller’s nearest local branch. SK Telink also provides satellite DMB service after its merger with TU Media in November 2010.

Digital Convergence and New Businesses

We believe that digital convergence is the new paradigm in telecommunications. While we acknowledge as a potential threat the increasing equivocation of conventional industry boundaries and the entrance of non-traditional players into the mobile communications space, we also view convergence as a significant growth opportunity. We believe that incumbent telecommunications service providers, like us, with existing advanced infrastructure,

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technical know-how and a large subscriber base, are especially well positioned to pioneer new “convergent” businesses. In recent years, we have focused on developing cross-over services that provide synergies with our existing business.

One of our recent efforts to pursue new opportunities in the convergence business area is our acquisition of an equity stake in SK Broadband, as described above. In order to solidify our presence in the fixed-mobile convergence marketplace, in September 2009, we also acquired the leased line business of SK Networks. We are hoping to continue to benefit from a range of synergies from these acquisitions, including by offering our customers bundled fixed-line, mobile telecommunications, broadband Internet and IP TV services. We also believe the acquisitions create opportunities to aggregate and broadcast digital content across various media platforms.

In February 2010, we purchased shares newly issued by Hana SK Card Co., Ltd., a credit card and related services provider, for a total purchase price of Won 402 billion. As a result, we currently hold 49.0% of the total outstanding shares of Hana SK Card. We expect that this acquisition of shares will enable us to provide cross-over services between telecommunication and finance.

Our other convergence and new businesses include:

Platform Business. We laid the foundation for our platform business in 2010 by expanding various platforms, including our T Store and MelOn music services, as well as establishing support systems for third-party content developers. We plan to grow our platform business by sharing our telecommunication infrastructure with other service providers and application developers. In addition, we plan to grow our industry productivity enhancement, or IPE, business division to generate greater value and growth for both us and our customers and partners around the globe. For a discussion of IPE, see “— Our Business Strategy.”

In May 2011 we announced our plan to spin off our platform business into a wholly-owned subsidiary in order to develop a management system and corporate culture that is suitable for the platform business and facilitate the expeditious execution of business strategies. Details of the spin-off plan have not been decided yet and the plan is subject to the final approval by our Board of Directors.

Satellite DMB Business. In September 2003, we entered into an agreement with Mobile Broadcasting Corporation for the purposes of co-owning and launching a satellite for the satellite DMB business. Under the terms of the agreement, we committed to fund 34.7% of the cost of launching and maintaining the operations of the satellite. The aggregate acquisition cost of the satellite was approximately Won 205.2 billion, of which we committed to pay Won 71.2 billion. DMB technology allows broadcasting of multimedia content through transmission by satellite to various mobile devices. For example, DMB technology allows users to view satellite television broadcasts on mobile phones, portable handsets or vehicle-mounted televisions that are enabled to receive DMB transmission. We believe that this business will enable us to improve the breadth of wireless multimedia services that we already offer and to remain competitive in the face of increasing convergence in the telecommunications and broadcasting industries.

We launched a satellite DMB in March 2004. In October 2004, we granted the right to use the satellite DMB to our then-affiliate, TU Media, which began to provide commercial satellite DMB services in May 2005. In February 2007, we purchased 4,615,798 new shares of TU Media for Won 32.4 billion, increasing our equity interest to 32.7%. Following this equity investment, TU Media became our consolidated subsidiary. In March 2008, we made an additional Won 55.0 billion capital contribution to TU Media, increasing our equity interest to 44.2%. In November 2010, TU Media merged with and into SK Telink Co., Ltd., our consolidated subsidiary. SK Telink is currently Korea’s sole operator of satellite DMB services. SK Telink currently offers a range of broadcast content including education, games, drama, music, news and culture over more than 35 channels, including TUBOX, a pay-per-view movie channel that broadcasts movies before their DVD release. As of December 31, 2010, SK Telink had more than 1.8 million subscribers to its satellite DMB services.

Telematics Service. In February 2002, we introduced a Telematics service called T-Map Navigation. T-Map Navigation is an interactive navigation service that uses GPS technology and our NATE platform to transmit driving directions, real-time traffic updates and emergency rescue assistance to wireless devices, including vehicle-mounted devices and portable handsets.

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We believe that Telematics also creates opportunities for synergy between mobile telecommunications and other industries. Under an agreement entered into in October 2010 with Renault Samsung Motors and Samsung Electronics, we are co-developing a customized Telematics system to provide T-Map Navigation service in Renault Samsung vehicles. We have also agreed with Fine Digital Inc., the second largest producer of navigation devices in Korea, to provide T-Map Navigation services through navigation devices manufactured by it. The implementation of more advanced 3G transmission technologies has also facilitated the increased integration of our wireless platforms customized for vehicular use and, in particular, created synergies between our Telematics services and satellite DMB broadcasting services. We offer bundled Telematics and satellite DMB broadcasting services through a single, integrated vehicle-mounted device.

Portal Services.

| • | Fixed-line NATE portal service . Our
subsidiary, SK Communications, offers a fixed-line portal
service under our “NATE” brand name and at the website www.NATE.com . NATE.com includes information and content
formerly offered under our Netsgo brand as well as the content
and services formerly available on Lycos Korea, which our
subsidiary, SK Communications, acquired in 2002. NATE.com offers
a wide variety of content and services, including an Internet
search engine, as well as access to free e-mail accounts. SK Communications also operates NATE-ON, an
instant messaging service available to NATE users. NATE-ON
allows users to chat online using a variety of wireless, as well
as wired, devices, such as mobile phones, personal digital
assistants and portable computers. |
| --- | --- |
| • | Community Portal
Service . “Cyworld”, also operated
by SK Communications, is one of the most popular online
community portal services in Korea. Cyworld is a social
networking site that encompasses an ever-expanding virtual forum where users can meet to exchange information and
ideas and share multimedia contents, including through the
publication of personal homepages and blog sites. We have also
sought to expand our global reach by launching Cyworld service
in overseas markets, including China. While retaining many
aspects of the original Korean version that make Cyworld unique
among social networking sites, we have redesigned foreign
versions of Cyworld to make it more appealing to local
audiences. As of December 31, 2010, our Cyworld portal
service had over 80 million registered users globally,
including 25 million in Korea and 55 million in China.
In March 2004, we launched “Mobile Cyworld”, allowing
wireless subscribers to access the Cyworld portal community site
through their cellular phones. In September 2009, we launched an
application store on Cyworld. |

In November 2007, SK Communications merged with Empas Corp., an Internet search engine and portal site. We believe the merger created valuable convergence synergies among our NATE, Cyworld and Empas services. In 2009, we integrated the Cyworld website into Nate.com, and the search traffic on Nate.com has grown substantially following the integration.

Global Business

We participate in various overseas markets and continue to seek opportunities to expand our global business.

United States. On March 24, 2005, we entered into a joint venture with EarthLink Inc., a major Internet services provider in the United States, and formed HELIO, LLC, a Delaware limited liability company, to provide wireless voice and data services in the United States. We and EarthLink Inc. made a combined investment in HELIO of US$440 million in cash and non-cash assets. In 2007 and the first half of 2008, we made additional equity contributions of US$160 million in aggregate to HELIO.

In August 2008, together with EarthLink, we sold our equity interest in HELIO to Virgin Mobile USA, Inc., a provider of wireless communications services in the United States that was founded as a joint venture between Sprint Nextel Corporation and the Virgin Group, in exchange for limited partnership units of Virgin Mobile USA, L.P. (Virgin Mobile USA, Inc.’s operating company), which were valued at approximately US$31 million at the time of sale. In December 2008, we exchanged all of our limited partnership units of Virgin Mobile USA for approximately 11 million shares of Virgin Mobile USA, Inc.’s Class A common stock.

In connection with the sale of HELIO, we and the Virgin Group each invested US$25 million of equity capital in Virgin Mobile USA, Inc. in exchange for mandatory convertible preferred stock, convertible into Virgin Mobile

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USA, Inc.’s Class A common stock. On November 24, 2009, Virgin Mobile USA, Inc. merged with Sprint Nextel Corporation. Pursuant to the terms of the merger, all of the shares of Class A common stock owned by us, including Class A common stock issuable upon conversion of the preferred stock, were converted into the right to receive shares of series 1 voting common stock of Sprint Nextel Corporation. We received 1.2279 shares of such series 1 voting common stock of Sprint Nextel Corporation per one share of Class A common stock of Virgin Mobile USA, Inc. and cash in lieu of fractional shares. In 2010, we sold all of the shares of Sprint Nextel Corporation held by us.

Since December 2004, we have been also offering our COLORing solution to Verizon Wireless, a major mobile phone service provider in the United States. As an application service provider, we receive a previously agreed percentage of Verizon’s COLORing service related revenues.

China. In February 2004, we and China Unicom, the second largest telecom operator and the only CDMA-based telecommunications service provider in China, established a joint venture company called UNISK Information Technology Co., Ltd., with an aggregate initial investment of approximately US$6 million. We owned a 49% stake of UNISK and China Unicom held a 51% stake. In addition, on July 5, 2006, we purchased US$1 billion in aggregate principal amount of zero coupon convertible bonds issued by China Unicom, convertible into common shares of China Unicom. In August 2007, we converted such bonds into shares representing a 6.6% equity interest in China Unicom to become China Unicom’s second-largest shareholder. In October 2008, China Unicom merged with China Netcom Group Corporation (Hong Kong) Limited, a leading broadband communications and fixed-line telecommunications operator in China. As a result of the merger, our equity interest in China Unicom, which is the surviving entity after the merger, decreased to 3.8% from 6.6%. On November 5, 2009, we sold all of the shares of the common stock of China Unicom held by us to China Unicom. We no longer hold any shares in China Unicom.

In July 2004, we, through our subsidiary U-Land Company Ltd., acquired ViaTech, an Internet portal service and mobile content provider in China, to enhance our wireless Internet content and expand our service area. Through ViaTech, we offer a Chinese-language version of Cyworld to users in China. ViaTech had more than 55 million registered users of Cyworld as of December 31, 2010.

In August 2006, we entered into a memorandum of understanding with China’s National Development and Reform Commission to assist China develop TD-SCDMA technology, China’s 3G standard. To support joint research and development in 3G multimedia services, value-added services and development of the TD-SCDMA network, we and the Chinese government established a research and development center in Beijing in February 2007. To further facilitate the commercialization and implementation of TD-SCDMA, we also opened a TD-SCDMA test center in Bundang, Korea in April 2007.

In February 2008, through our wholly-owned Chinese subsidiary, SK Telecom China Holding Company, we invested US$15.6 million to acquire a 65.5% equity interest in Shenzhen E-eye High Tech Co., Ltd., a global positioning system service company in China. In 2009, Shenzhen E-eye High Tech and SK Marketing & Company established a joint venture to provide telematics services in Beijing, Shanghai and Shenzhen. We believe the acquisition of Shenzhen E-eye High Tech allows us to leverage opportunities created by the rapidly growing telematics market in China.

In March 2008, we acquired a 42.2% equity interest in TR Music, a major record label in China, for US$10.7 million. In addition, in May 2008 we invested US$7.8 million to acquire a 30.0% equity interest in Magic Tech Network, a Hong Kong company that develops and publishes online games in China.

In August 2010, we set up a joint venture with China Railway No. 2 Engineering Group to build and run a smart city system at Jinma Smart City Project in Chengdu, China. The joint venture was founded with Won 2.8 billion of capital, with 60% and 40% of its shares owned by us and China Railway No. 2 Engineering Group, respectively.

Mongolia. In July 1999, we acquired a 27.8% equity interest in Skytel Co., Ltd., Mongolia’s second-largest cellular service provider, by providing approximately Won 1.5 billion worth of analog infrastructure. We, together with Skytel, have been providing cellular service in Mongolia since July 1999, and CDMA service since February 2001. In April 2001, we completed installation of the equipment necessary to provide WAP service. In December 2002, we increased our equity interest in Skytel to 28.6% through the subscription of newly issued common shares in return for an additional investment of approximately US$500,000. In 2010, we reduced our equity interest in Skytel to 17.0% by selling 820,943 shares and sold the remaining shares in January 2011.

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Malaysia. In July 2010, we acquired a 27.2% equity interest in Packet One Network, or P1, a Malaysian 4G WiMAX Telecommunications company and subsidiary of Green Packet Berhad, for US$101 million. In connection with P1’s plan to increase its capital, we announced in May 2011 our plan to make an additional investment of MYR50 million (approximately US$16.3 million) pro rata to our ownership interest. P1 is the first WiMAX service provider in the country which has established itself as the market leader in high-speed wireless broadband services. We also consider such investment in P1 as groundwork for our IPE business expansion abroad and expect the strategic relationship with P1 to create powerful synergies, attracting potential IPE customers and business partners in the process.

Regional and International Strategic Alliances. We have also entered into various strategic alliances with leading companies in the Asian and European wireless telecommunications markets. For instance, we are a member of the Bridge Alliance, the largest pan-Asian alliance of its kind, which includes eleven of the region’s leading wireless service providers. In June 2007, we also signed a memorandum of understanding with the Freemove Alliance, an alliance of leading European wireless service providers, including Orange SA of France, Telecom Italia Mobile S.p.A. of Italy, T-Mobile International AG & Co. AG of Germany and Teliasonera Mobile Networks AB of Sweden, for the development of expanded WCDMA-based roaming service in Europe. We plan to continue to improve customer service as well as service quality, by developing co-marketing programs and other joint projects with our regional and global partners and by further fostering our regional and international alliances.

Provision of Wireless Internet Platforms and Cellular Network Solutions to Foreign Cellular Network Operators. We have also sought to expand our global business through sales of our wireless Internet platforms and cellular network solutions, as well as provision of consulting services in the field of mobile communications. In addition, we have also been successful in exporting to other Asian countries and the United States the technological solutions underlying certain value-added and other wireless services, such as our color mail solution, which is a messaging service that allows subscribers to send messages containing multimedia files including graphic, audio and video clips.

Revenues, Rates and Subscription Deposits

Our wireless revenues are generated principally from initial subscription fees, monthly plan-based fees, usage charges for outgoing voice calls, usage charges for wireless data services, value-added-service fees and interconnection revenue. The following table sets forth information regarding our cellular revenues (net of taxes) and facility deposits for the periods indicated:

	As of or for the Year Ended December 31, — 2008		2009		2010
	(In billions of Won)
Initial Subscription Fees	W	400.2	W	403.8	W	326.2
Monthly Fees		4,348.0		4,945.0		5,453.6
Usage Charges(1)		5,654.9		5,385.6		5,277.5
Interconnection Revenue		1,149.2		1,158.0		1,141.2
Revenue from Sales of Digital Handsets		—		185.3		534.4
Other Cellular Revenue(2)		26.8		13.9		105.8
Total	W	11,579.1	W	12,091.6	W	12,838.7
Additional Subscription Deposits	W	2.7	W	2.7	W	2.4
Refunded Subscription Deposits		4.3		2.1		2.6
Subscription Deposits at Period End		4.8		5.4		5.2

| (1) | Usage charges principally include revenues from monthly
plan-based fees, usage charges for outgoing voice calls, usage
charges for wireless data services, value-added-service fees, as
well as international charges and interest on overdue subscriber
accounts (net of telephone tax). |
| --- | --- |
| (2) | Other cellular revenue includes revenue from the sale and
licensing of Internet platform solutions. |

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We charge our new customers an initial subscription fee for initial connection and service activation. In addition to the initial subscription fee, we require our customers to pay monthly plan-based fees, usage charges for outgoing voice calls and usage charges for wireless data services. We do not charge our customers for incoming calls, although we do receive interconnection charges from KT and other companies for calls from the fixed-line network terminating on our networks and interconnection revenues from other wireless network operators. See “— Interconnection”. Monthly plan-based fees for some plans include free airtime and/or discounts for designated calling numbers. We bill subscribers on a monthly basis and subscribers may make payment at a bank, post office, or at any of our authorized dealers.

We offer a variety of differentiated Standard Rate Plans that are designed to meet a wide range of subscriber needs and interests. Popular Standard Rate Plans include our couples discount plan, region discount plan and friends and family discount plan. The basic monthly fee for our Standard Rate Plans ranges from Won 10,000 to Won 110,000. We also offer fixed rate plans to smartphone users with flat rates ranging from Won 35,000 to Won 95,000 per month.

In addition, we offer optional “add-on” service plans, which may supplement the basic service plan a subscriber has chosen, including:

| • | Data Plans , which target subscribers with high usage
patterns for wireless data transmission and wireless Internet
services. We offer various Data Plans that provide wireless data
services for monthly fees ranging from Won 3,500 to Won 22,500. |
| --- | --- |
| • | Videoconferencing Plans , for subscribers to our 3G
services, which we provide primarily using our WCDMA and CDMA
EV-DO network. The basic monthly fee for our Videoconferencing
Plans ranges between Won 3,500 and Won 9,000. |

The KCC has periodically reviewed the tariffs charged by wireless operators and has, from time to time, suggested tariff reductions. Although these suggestions are not binding, we have in the past implemented some tariff reductions in response to KCC recommendations. We began to provide Caller ID service to customers free of charge commencing January 1, 2006. In January 2007, we reduced our usage fees for wireless Internet services by 30% and in October 2007 we began providing a 50% discount on usage fees between our subscribers for a fixed payment of Won 2,500 per month. In addition, in January 2008 we reduced our SMS usage charges from Won 30 per message to Won 20 per message. In March 2008, we reduced usage charges for voice calls between family members by 50%. In November 2009, we also adopted various tariff reduction measures, including a reduction of the initial subscription fee from Won 50,000 to Won 36,000 and an increase in discounts for long-term subscribers. In March 2010, we began to charge voice calls on a per-second basis, rather than per ten seconds as previously charged, and effectively reduced the usage charges. In June 2011, we announced further tariff reduction measures, including a reduction of the monthly fee by Won 1,000 for every subscriber, an exemption of SMS usage charges up to 50 messages per month and the introduction of flexible service plans for smartphone users. See “Item 5.A. Operating Results — Overview”.

For all calls made from our subscribers’ handsets in Korea to any destination in Korea, we charge usage fees based on a subscriber’s cellular rate plan. The fees are the same whether the call is local or long distance. With respect to international calls placed by a subscriber, we bill the subscriber the international rate charged by the Korean international telephone service provider through which the call is routed. We remit to that provider the international charge less our usage charges. See “— Interconnection”.

We offer a variety of value-added services, including our ring back tone (COLORing), Auto COLORing, Call Keeper and Perfect Call services. Depending on the rate plan selected by the subscriber, the monthly fee may or may not include these value-added services, except Caller ID and call waiting services, which are offered free of charge to all beginning subscribers.

We offer wireless Internet access services to our subscribers through NATE or, in the case of smartphone users, directly using mobile Internet technology. Our subscribers may elect to pay a monthly fee, which includes a fixed amount of airtime or data packets or unlimited amount of data for certain monthly plans with higher monthly fees, or may elect to pay on a variable, usage basis. The data transmitted is measured in packets of 512 bytes. We charge Won 4.55 per text packet, Won 0.9 per multimedia packet for large volume data transfers, and Won 1.75 per

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multimedia packet for smaller volume data transfers. In addition, we charge subscribers for purchases of certain digital contents and for certain wireless services, such as m-commerce transaction services.

Until February 2007, we generally required new subscribers (other than certain corporate and Government subscribers) to pay a non-interest bearing subscription deposit of Won 200,000, which we utilized to offset a defaulting subscriber’s outstanding account balance. Since March 2007, we generally no longer require new subscribers to pay the subscription deposit. We refund the subscription deposit to any existing subscriber who had initially made a subscription deposit and later requests such subscription deposit to be refunded. As a result of the subscription insurance program and the termination of the subscription deposit requirement, we have refunded a substantial amount of subscription deposits, and subscription deposits decreased from Won 21.1 billion as of December 31, 2006 to Won 5.2 billion as of December 31, 2010. We do not expect to have to refund a significant amount of subscription deposits in the future, because we believe that most of our subscribers who wish to have the subscription deposit refunded have already done so.

Because we have been designated by the KCC as a “market dominant service provider”, any modification to our fees, charges or the terms and condition of our service, including promotional rates and subscription deposits, requires prior approval by the KCC; provided, however, that such pre-approval of the KCC is not required, if we are planning to reduce the rates for each type of services that we provide under the KCC-approved contractual terms.

We also charge our customers a 10.0% value-added tax. We can offset the value-added tax we collect from our customers against value-added tax refundable to us by the Korean tax authorities. We remit taxes we collect from our customers to the Korean tax authorities. We record revenues in our financial statements net of such taxes.

Subscribers

We had 26.0 million wireless subscribers as of March 31, 2011, representing a market share of 50.6%, the largest market share among Korean wireless service providers. We believe that, historically, our subscriber growth has been due to many factors, including:

| • | our expansion and technical enhancement of our networks,
including with high-speed data capabilities; |
| --- | --- |
| • | increasing consumer awareness of the benefits of wireless
telecommunications; |
| • | an effective marketing strategy; |
| • | our focus on customer service; |
| • | the introduction of new, value-added services, such as COLORing,
wireless Internet services and various mobile
applications; and |
| • | our acquisition of Shinsegi in January 2002. |

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The following table sets forth selected historical information about our subscriber base for the periods indicated:

2008		2009	2010
Wireless:
Subscribers	23,032,045		24,269,553	25,705,049
Subscribers Growth Rate	4.8	%	5.4 %	5.9 %
Activations	8,493,340		8,821,695	9,651,343
Deactivations	7,429,464		7,284,187	8,215,847
Average Monthly Churn Rate(1)	2.7	%	2.7 %	2.7 %
Broadband Internet:
Subscribers	3,543,669		3,846,597	4,001,907
Subscribers Growth Rate	(3.1	)%	8.5 %	4.0 %
Fixed-line Telephone (including VoIP):
Subscribers	2,055,981		3,023,068	3,845,650
Subscribers Growth Rate	1.2	%	47.0 %	27.2 %

(1) Average monthly churn rate for a period is the number calculated by dividing the sum of deactivations during the period by the simple average of the number of subscribers at the beginning and end of the period and dividing the quotient by the number of months in the period. Churn includes subscribers who upgrade to the next generation service, such as CDMA 1xEV/ DO or WCDMA, by terminating their service and opening a new subscriber account.

We had 25.7 million wireless subscribers as of December 31, 2010. For the year ended December 31, 2010, we had 9.7 million activations and 8.2 million deactivations, representing an average monthly churn rate of 2.7% during the same period. Our subscribers include those subscribers who are temporarily deactivated, including (1) subscribers who voluntarily deactivate temporarily for a period of up to three months no more than twice a year and (2) subscribers with delinquent accounts who may be involuntarily deactivated up to two months before permanent deactivation, which we determine based on various factors, including prior payment history.

Number Portability

Prior to January 2003, Korea’s wireless telecommunications system was based on a network-specific prefix system, in which a unique prefix was assigned to all the phone numbers of a specific network operator. We were assigned the “011” prefix, and all of our subscriber’s mobile phone numbers began with “011” (former Shinsegi subscribers use the “017” prefix) and our subscribers could not change their wireless phone service to another wireless operator and keep their existing numbers. In January 2003, the MIC announced a plan to implement number portability with respect to wireless telecommunications services in Korea, allowing wireless subscribers to switch wireless service operators while retaining the same mobile phone number. As mandated by the MIC, we were the first wireless telecommunications provider to introduce number portability in January 1, 2004, allowing our customers to transfer their numbers to our competitors. Our competitors’ customers were not able to transfer their number to our service, however, until KT and LG Telecom introduced number portability beginning July 1, 2004 and January 1, 2005, respectively. Subscribers who choose to transfer to a different wireless operator have the right to return to their original service provider without paying any penalties within 14 days of their initial transfer.

In 2008, 2009 and 2010, respectively, approximately 3.0 million, 3.0 million and 3.6 million subscribers switched their wireless telecommunications service provider from us to KT or LG U+ and approximately 3.1 million, 3.1 million and 3.7 million subscribers switched from KT or LG U+ to us.

In 2008, 2009 and 2010, respectively, we gained approximately 1.0 million, 1.2 million and 1.4 million new subscribers, which represented approximately 50.4%, 52.9% and 50.8% of the aggregate number of new wireless subscribers gained by us, KT and LG U+ in each year.

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In addition, in order to manage the availability of phone numbers efficiently and to secure phone number resources for the services, the Government has begun to integrate mobile telephone identification numbers into a common prefix identification number “010” and to gradually retract the current mobile service identification numbers which had been unique to each wireless telecommunications service provider, including “011” for our cellular services, starting from 2004. All new subscribers are given the “010” prefix starting January 2004. The KCC plans to continue to pursue the integration process and complete the integration process by around 2018, when all mobile telephone numbers would have the prefix identification number “010”.

For 2010, our churn rate ranged from 2.3% to 3.1%, with an average churn rate of 2.7% for 2010, which remained unchanged from 2009. For details regarding certain fines imposed on us by the MIC in connection with our marketing efforts related to the number portability system, see “Item 8.A. Consolidated Statements and Other Financial Information — Legal Proceedings — MIC and KCC Proceedings”.

Interconnection

Our networks interconnect with the public switched telephone networks operated by KT and SK Broadband and, through their networks, with the international gateways of KT, LG U+ and Onse Telecom Corporation, as well as the networks of the other wireless telecommunications service providers in Korea. These connections enable our subscribers to make and receive calls from telephones outside our networks. Under Korean law, service providers are required to permit other service providers to interconnect to their networks. If a new service provider desires interconnection with the networks of an existing service provider but the parties are unable to reach an agreement within 90 days, the new service provider can appeal to the KCC.

For 2008, our total interconnection revenues were Won 1,149.2 billion, and our total interconnection expenses were Won 1,327.4 billion. For 2009, our total interconnection revenues were Won 1,245.4 billion and our total interconnection expenses were Won 1,317.7 billion. For 2010, our total interconnection revenues were Won 1,237.5 billion and our total interconnection expenses were Won 1,316.3 billion.

Domestic Calls

Guidelines issued by the KCC require that all interconnection charges levied by a regulated carrier take into account (i) the actual costs to that carrier of carrying a call or (ii) imputed costs. The KCC determines interconnection rates applicable to each carrier every two years based on the actual or imputed costs, traffic volume and competitive environment, among others.

Wireless-to-Fixed-line. According to our interconnection arrangement with KT, for a call from our wireless network to KT’s fixed-line network, we collect the usage rate from our wireless subscriber and in turn pay KT the interconnection charges. Similarly, KT pays interconnection charges to SK Broadband for a call from KT’s wireless network to SK Broadband’s fixed-line network. The interconnection rate applicable to both KT and SK Broadband was Won 19.31 per minute, Won 19.15 per minute and Won 18.57 per minute for 2009, 2010 and 2011, respectively.

Fixed-line-to-Wireless. The KCC determines interconnection arrangements for calls from a fixed-line network to a wireless network. For a call initiated by a fixed-line user to one of our wireless service subscribers, the fixed-line network operator collects our usage fee from the fixed-line user and remits to us an interconnection charge. Interconnection with KT accounts for substantially all of our fixed-line-to-wireless interconnection revenue and expenses.

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The interconnection rates paid by fixed-line network service providers to each wireless network service provider are set out below. In December 2010, the KCC announced that a single interconnection rate will apply to all wireless service providers starting from 2013, which will eliminate the cost benefit that KT and LG U+ currently derive from the differences in interconnection rates.

Applicable Year	Rate per Minute — SK Telecom		KT		LG U+
2006	W	33.13	W	40.06	W	47.01
2007		32.78		39.60		45.13
2008		33.41		38.71		39.09
2009		32.93		37.96		38.53
2010		31.41		33.35		33.64
2011		30.50		31.75		31.93

Wireless-to-Wireless. The MIC implemented interconnection charges for calls between wireless telephone networks in Korea starting in January 2000. Under these arrangements, the operator originating the call pays an interconnection charge to the operator terminating the call. The applicable interconnection rate is the same as the fixed-line-to-wireless interconnection rate set out in the table above.

Our revenues from the wireless-to-wireless charge were Won 745.3 billion in 2008, Won 774.0 billion in 2009 and Won 767.4 billion in 2010. Our expenses from these charges were Won 821.3 billion in 2008, Won 849.5 billion in 2009 and Won 825.3 billion in 2010. The charges above were agreed among the parties involved and confirmed by the KCC.

Despite an increase in incoming call volume in 2010, the decrease in our interconnection rate for 2010 led to an overall decrease of Won 7.9 billion in interconnection revenues. Our interconnection expenses slightly decreased in 2010 by Won 1.4 billion, primarily due to a decrease in interconnection rates, partially offset by an increase in outgoing call volume in 2010.

International Calls

With respect to international calls, if a call is initiated by a wireless subscriber, we bill the wireless subscriber for the international charges of KT, LG U+ or SK Broadband, and we receive interconnection charges from such operators. If an international call is received by our subscriber, KT, LG U+ or SK Broadband pays interconnection charges to us based on our imputed costs.

International Roaming Arrangements

To complement the services we provide to our subscribers in Korea, we offer international voice and data roaming services. We charge our subscribers usage fees for global roaming service and, in turn, pay foreign wireless network operators fees for the corresponding usage of their network. For a more detailed discussion of our global roaming services, see “— Our Services — Cellular Voice Services” above.

Marketing and Service Distribution

Marketing, Sales and Service Network

We market our services and provide after-sales service support to customers through 27 marketing teams, 38 branch offices and a network of 1,179 authorized exclusive dealers located throughout Korea. Our dealers are connected via computer to our database and are capable of assisting customers with account information. In addition, approximately 15,000 independent retailers assist new subscribers to complete activation formalities, including processing subscription applications.

Currently, authorized dealers are entitled to an initial commission for each new subscriber registered by the dealer, as well as an average ongoing commission calculated as a percentage of that subscriber’s monthly plan-based and usage charges from domestic calls for the first four years. In order to strengthen our relationships with our exclusive dealers, we offer a dealer financing plan, pursuant to which we provide to each authorized dealer an

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interest-free or low-interest loan of up to Won 4.0 billion with a repayment period of up to three years. As of December 31, 2010, we had an aggregate of Won 80.0 billion in loans to authorized dealers outstanding.

In April 2009, we established a wholly-owned subsidiary to diversify our sales activities. The new subsidiary, PS & Marketing Co., Ltd., was established with an investment of Won 150 billion and began operating 13 stores in May 2009. As of December 31, 2010, PS & Marketing Co., Ltd. had 42 stores in 14 cities in Korea with 1,233 employees. In addition, we established two wholly-owned subsidiaries, Service Ace Co., Ltd. and Service Top Co., Ltd., in June 2010, in order to provide customer service directly through our subsidiaries to enhance the quality of services compared to outsourcing.

In April 2010, our authorized dealers for wireless services started to market SK Broadband’s broadband Internet and fixed-line telephone services, which we believe has contributed to the increase in the number of broadband Internet and fixed-line telephone subscribers.

Over the last several years, competition in the wireless telecommunications business has caused us to increase significantly our marketing and advertising expenses. However, we expect such expenses to stabilize due to the KCC’s new guideline on marketing expenses recommending that telecommunication service providers limit their marketing expenses to 22% of their annual sales. Such marketing expenses include initial commissions, monthly commissions and retention commissions paid to our authorized dealers and subscribers, including handset subsidies, but do not include advertising expenses. In 2008, 2009 and 2010, such marketing expenses amounted to 26.2%, 26.9% and 26.5% of our wireless revenues, respectively. In 2008, 2009 and 2010, advertising expenditures amounted to 2.6%, 2.2% and 2.1% of our revenues, respectively.

Marketing Strategies and Marketing Information Management

Information technology improvements. We have implemented certain information technology improvements in connection with marketing strategy, including customer management systems, as well as more effective information security controls. We believe these upgrades have enhanced our ability to process and utilize marketing- and subscriber-related data, which, in turn, has helped us to develop more effective and targeted marketing strategies.

We currently operate a customer information system designed to provide us with an extensive customer database. Our customer information system includes a billing system that provides us with comprehensive account information for internal purposes and enables us to efficiently respond to customer requests. Our customers can also change their service plans, verify the charges accrued on their accounts, receive their bills online and send text messages to our other subscribers through our website at www.tworld.co.kr .

“T”-brand Marketing Strategy. To increase brand awareness and promote our corporate image, in August 2006, we launched our “T”-brand marketing campaign. Our “T” brand signifies the centrality of “Telecommunications” and “Technology” to our business and also seeks to emphasize our commitment to providing “Top” quality, “Trustworthy” products and services to our customers. We are marketing all our products and services under the “T” brand.

Other Investments and Relationships

We have investments in several other businesses and companies and have entered into various business arrangements with other companies. Our principal investments fall into the following categories:

Wireless Content Providers and Application Providers

As part of our strategy to develop additional applications and content for our wireless data services, we invest in companies which develop wireless applications and provide Internet content, including content accessible by users of our wireless networks.

Digital Content Providers. We also hold investments in companies that develop content for use in our fixed-line and wireless Internet businesses, particularly in the entertainment sector, to better capture growth opportunities arising from the provision of varied, high-quality digital contents. As wireless data transmission services have

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become increasingly important in the growth of our business, we are seeking to secure valuable mobile data and digital contents by making equity investments in various content providers.

We currently hold a 63.5% stake in Loen Entertainment Inc. (formerly, Seoul Records Inc.), Korea’s largest music recording company in terms of records released and revenues. We currently hold a 63.7% equity interest in Ntreev Soft Co., Ltd., an online game developer, particularly known for its multi-player sports games and anime-based games. We also hold a 9.4% equity interest in iHQ, Inc., an entertainment management firm that produces films, manages entertainers and operates online game services. Through our investments in companies such as Loen Entertainment, Ntreev Soft and iHQ, we are able to offer customers of our MelOn, movie and gaming portal services access to an expanded range of music- and entertainment-related digital contents and mobile games, respectively.

In 2005, we and certain other Korean investment companies invested an aggregate of Won 40.0 billion to establish three funds to invest in the music industry and seek strategic partnerships with recording companies. As of December 31, 2010, our contribution to the funds amounted to Won 19.8 billion. In addition, in 2005 and in 2008, we and certain co-investors invested an aggregate Won 74.7 billion to establish five movie-production funds to strengthen our ability to obtain movie content. We had invested Won 38.0 billion in the funds as of December 31, 2010. Furthermore, in 2008, we and certain co-investors invested an aggregate Won 105.4 billion to establish six additional funds to invest in the production of various cultural contents, including movies and television dramas. As of December 31, 2010, our contribution to these funds amounted to Won 66.3 billion. Such investments reflect our business strategy of diversification into new areas, such as media and entertainment.

Wireless Application Developers. We hold investments in companies that help enable us to further develop and improve our wireless applications and multimedia platforms. In particular, we have invested in developers of wireless financial, or m-commerce, services, including companies that provide wireless billing solutions; developers of wireless modem devices; and developers of Internet search applications.

Other Investments

Our other investments include:

| • | POSCO. We currently own a 2.8% interest in the
outstanding capital stock of POSCO, with a book value as of
December 31, 2010 of Won 1,209.6 billion. POSCO is the
largest fully integrated steel producer in Korea, and one of the
largest steel producers in the world. |
| --- | --- |
| • | SK C&C. We sold 10,500,000 common shares
of SK C&C held by us in SK C&C’s initial public
offering in November 2009, sold an additional
2,450,000 shares to the Government of Kuwait in October
2010 and disposed of the remaining 2,050,000 shares to
Kookmin Bank in exchange for a 0.91% stake in KB Financial
Group, Kookmin Bank’s parent company, in a share swap
arrangement in February 2011. As a result, our equity stake in
SK C&C decreased from 30.0% in 2008 to 0% in 2011. SK
C&C is an information technologies services provider. We
are party to several service contracts with SK C&C related
to development and maintenance of our information technologies
systems. See “Item 7.B. Related Party
Transactions”. |
| • | SKY Property Management. We currently own a
60% equity interest in SKY Property Management Ltd., with a book
value as of December 31, 2010 of Won 268 billion. SKY
Property Management was established in 2008 to manage buildings
and real estate developments in China, in which affiliated
companies of the SK Group had invested or will invest. |
| • | SK Marketing & Company. We currently
own a 50% equity interest in SK Marketing & Company
Co., Ltd., with a book value as of December 31, 2010
of Won 119 billion. SK Marketing & Company
Co., Ltd. provides marketing-related services to corporate
and individual clients. |

For more information regarding our investment securities, see note 4 of the notes to our consolidated financial statements.

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Competition

We were Korea’s only provider of cellular telecommunications services until April 1996, when Shinsegi began offering its CDMA service. In 1996, the Government issued three additional licenses to KTF, LG Telecom and Hansol PCS to operate CDMA services. Each of KTF, LG Telecom and Hansol PCS commenced operation of its CDMA service in October 1997. Furthermore, in 2001, the Government awarded three companies the licenses to provide high-speed third generation, or 3G, wireless telecommunications services. In Korea, this 3G license is also known as the “IMT-2000” license. IMT-2000 is the global standard for 3G wireless communications, as defined by the International Telecommunication Union, an organization established to standardize and regulate international radio and telecommunications. One of these licenses was awarded to our former subsidiary, SK IMT Co., Ltd., which was merged into us on May 1, 2003. The other two licenses were awarded to LG Telecom, and to consortia led by or associated with KT. In addition, our wireless voice businesses compete with Korea’s fixed-line operators, and our wireless Internet businesses compete with providers of fixed-line data and Internet services.

Beginning in 2000, there has been considerable consolidation in the wireless telecommunications industry, resulting in the emergence of stronger competitors. In 2000, KT acquired 47.9% of Hansol M.Com’s outstanding shares and renamed the company KT M.Com. KT M.Com merged into KTF in May 2001. In June 2009, KTF merged into KT, which had held a 54.25% interest in KTF before the merger. In addition, in January 2010, LG DACOM and LG Powercomm merged into LG Telecom, which subsequently changed its name to LG Uplus Corp.

Significant advances in technology are occurring that may affect our businesses, including the roll-out or the planned roll-out by us and our competitors of advanced high-speed wireless telecommunications networks based on technologies including CDMA, WCDMA, CDMA2000, WiBro and LTE.

As of December 31, 2010, according to the KCC, KT and LG U+ had 16.0 million and 9.0 million subscribers, respectively, representing approximately 31.6% and 17.8%, respectively, of the total number of wireless subscribers in Korea on such date. As of December 31, 2010, we had 25.7 million subscribers, representing a market share of approximately 50.6%.

For a description of the risks associated with the competitive environment in which we operate, see “Item 3.D. Risk Factors — Competition may reduce our market share and harm our results of operations and financial condition”.

Law and Regulation

Overview

Korea’s telecommunications industry is subject to comprehensive regulation by the KCC, which is responsible for information and telecommunications policies, radio and broadcasting management. The KCC regulates and supervises a broad range of communications issues, including:

•	entry into the telecommunications industry;
•	scope of services provided by telecommunications service
providers;
•	allocation of radio spectrum;
•	setting of technical standards and promotion of technical
standardization;
•	rates, terms and practices of telecommunications service
providers;
•	customer complaints;
•	interconnection and revenue-sharing between telecommunications
service providers;
•	disputes between telecommunications service providers;
•	research and development budgeting and objectives of
telecommunications service providers; and
•	competition among telecommunications service providers.

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Pursuant to an amendment to the Government Organization Act, effective as of February 29, 2008, the Ministry of Information and Communication, or MIC, has become the Ministry of Knowledge Economy, and functions formerly performed by the MIC are now performed separately by the Ministry of Knowledge Economy, the Ministry of Culture, Sports and Tourism, the Ministry of Public Administration and Security, and, particularly, the KCC. In this report, we refer to the MIC as the relevant governmental authority in connection with any approval granted or action taken by the MIC prior to such amendment and to such other relevant governmental authority in connection with any approval granted or action taken by such other relevant governmental authority subsequent to such amendment.

Telecommunications service providers are currently classified into three categories: network service providers, value-added service providers, and specific service providers. We are classified as a network service provider because we provide telecommunications services with our own telecommunications networks and related facilities. As a network service provider, we are required to obtain a license from the KCC for the services we provide. Our licenses permit us to provide cellular services and third generation wireless services using WCDMA and WiBro technologies. Our cellular license is valid until 2021 after a 10-year extension issued in June 2011, our IMT-2000 license is valid until 2016 and our WiBro license is valid until 2012.

The KCC may revoke our licenses or suspend any of our businesses if we fail to comply with its rules, regulations and corrective orders, including the rules restricting beneficial ownership and control and corrective orders issued in connection with any violation of rules restricting beneficial ownership and control or any violation of the conditions of our licenses. Alternatively, in lieu of suspension of our business, the KCC may levy a monetary penalty of up to 3% of the average of our annual revenue for the preceding three fiscal years. A network services provider that wants to cease its business or dissolve must obtain KCC approval.

In the past, the Government has stated that its policy was to promote competition in the Korean telecommunications market through measures designed to prevent the dominant service provider in any such market from exercising its market power in such a way as to prevent the emergence and development of viable competitors. While all network service providers are subject to KCC regulation, we are subject to increased regulation because of our position as the dominant wireless telecommunications services provider in Korea.

Competition Regulation

The KCC is charged with ensuring that network service providers engage in fair competition and has broad powers to carry out this goal. If a network service provider is found to be in violation of the fair competition requirement, the KCC may take corrective measures it deems necessary, including, but not limited to, prohibiting further violations, requiring amendments to the articles of incorporation or to service contracts with customers, requiring the execution or performance of, or amendments to, interconnection agreements with other network service providers and prohibiting advertisements to solicit new subscribers.

In addition, we qualify as a “market-dominating business entity” under the Fair Trade Act. Accordingly, we are prohibited from engaging in any act of abusing our position as a market-dominating entity, such as unreasonably determining, maintaining or altering service rates, unreasonably controlling the rendering of services, unreasonably interfering with business activities of other business entities, hindering unfairly the entry of newcomers or substantially restricting competition to the detriment of the interests of consumers.

Because we are a member company of the SK Group, which is a large business group as designated by the FTC, we are subject to the following restrictions under the Fair Trade Act:

| • | Restriction on debt guarantee among
affiliates. Any affiliate within the SK Group may
not guarantee the debts of another domestic affiliate, except
for certain guarantees prescribed in the Fair Trade Act, such as
those relating to the debts of a company acquired for purposes
of industrial rationalization, bid deposits for overseas
construction work or technology development funds. |
| --- | --- |
| • | Restriction on cross-investment. A member
company of the SK Group may not acquire or hold shares in an
affiliate belonging to the SK Group that owns shares in the
member company. |

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| • | Public notice of board resolution on large-scale transactions
with specially related persons. If a member
company of the SK Group engages in a transaction with a
specially related person in the amount of 10% or more of the
member company’s capital or paid-in capital or for Won
10 billion or more, the transaction must be approved by a
resolution of the member company’s board of directors and
the member company must publicly disclose the transaction. |
| --- | --- |
| • | Restrictions on equity investments in other domestic
companies. Under the Fair Trade Act, a company
that is a member of a large business group as designated by the
FTC was generally required to limit its total investments in
other domestic companies to 40% of its non-consolidated net
assets. In March 2009, an amendment to the Fair Trade Act
abolished such restrictions on total investments in other
domestic companies. |
| • | Restrictions on investments by subsidiaries and sub-subsidiaries of holding companies. The Fair Trade Act
prohibits subsidiaries of holding companies from investing in,
or holding shares of common stock of, domestic affiliates that
belong to the same large business group, unless such domestic
affiliates are their own subsidiaries. Furthermore, any
subsidiaries of a holding company’s subsidiaries (“sub-subsidiaries”) are prohibited from investing in, or holding shares of common
stock of, domestic affiliates that belong to the same large
business group, unless all shares issued by the affiliates are
held by the sub-subsidiary. Therefore, we and other subsidiaries of SK Holdings may not
invest in any domestic affiliate that is also a member company
of the SK Group, except in the case where we invest in our own
subsidiary or where another subsidiary of SK Holdings invests in
its own subsidiary. |
| • | Public notice of the current status of a business
group. Pursuant to a recent amendment to the
Enforcement Decree of the Fair Trade Act which became effective
in June 2009, a member company of the SK Group must publicly
disclose the general status of the SK Group, including the name,
business scope and financial status of affiliates, information
on the officers of affiliates, information on shareholding and
cross-investments between member companies in the SK Group and
information on transactions with certain related persons on a
quarterly basis. |

Number Portability. In January 2003, the Government announced its plan to implement number portability with respect to wireless telecommunications service in Korea. The number portability system allows wireless subscribers to switch wireless service operators while retaining the same mobile phone number. For details of the number of subscribers who transferred to the services of our competitors following the implementation of the number portability system, see “— Subscribers”.

In addition, the Government has begun to integrate mobile telephone identification numbers into a common prefix identification number “010” and to gradually retract the current mobile service identification numbers which had been unique to each wireless telecommunications service provider, including “011” for our cellular services, starting from January 1, 2004. All new subscribers have been given the “010” prefix starting January 2004. The KCC plans to continue to pursue the integration process and complete the integration process by around 2018, when all mobile telephone numbers would have the prefix identification number “010”.

For risks relating to number portability, see “Item 3.D. Risk Factors — Our businesses are subject to extensive Government regulation and any change in Government policy relating to the telecommunications industry could have a material adverse effect on our results of operations, financial condition and cash flows”.

Rate Regulation. Most network service providers must report to the KCC the rates and contractual terms for each type of service they provide. However, as the dominant network services provider for specific services (based on having the largest market share in terms of number of subscribers and meeting certain revenue thresholds), we must obtain prior approval of the KCC on our rates and terms of service; provided, however, that such pre-approval of the KCC is not required, if we are planning to reduce the rates for each type of services that we provide under the KCC-approved contractual terms. In each year in which this requirement has been applicable, the KCC has designated us for wireless telecommunications service, and KT for local telephone and Internet services, as dominant network service providers that are subject to such approval requirement. As a condition to its approval of our merger with SK IMT Co., Ltd., the Government required that we submit the rates for our third generation mobile services using WCDMA technology to the Government for approval prior to the launch of such services. The KCC’s

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policy is to approve rates if they are appropriate, fair and reasonable (that is, if the rates have been reasonably calculated, considering supply costs, profits, classification of costs and profits for each service, cost savings through changes in the way services are provided and the influence on fair competition, among others). The KCC may order changes in the submitted rates if it deems the rates to be significantly unreasonable or against public policy. In May 2007, the Government terminated the monitoring of whether we met the condition for the Government’s approval of our merger with SK IMT.

Furthermore, in 2007, the Government announced a “road map” highlighting revisions in regulations to promote deregulation of the telecommunications industry. In accordance with the road map and pursuant to the Combined Sales Regulation, promulgated in May 2007, telecommunications service providers are now permitted to bundle their services, such as wireless data service, wireless voice service, broadband Internet access service, fixed-line telephone service and Internet protocol television, or IP TV, service, at a discounted rate; provided, however, that we and KT, as market-dominating business entities under the Telecommunications Business Act, allow other competitors to employ the services provided by us and KT, respectively, so that such competitors can provide similar discounted package services. In September 2007, the regulations and provisions under the Telecommunications Business Act were amended to permit licensed transmission service providers to offer local, domestic long-distance and international telephone services, as well as broadband Internet access and Internet phone services, without additional business licenses.

Moreover, under the amended Telecommunications Business Act, which became effective on September 23, 2010, an MVNO (Mobile Virtual Network Operator) system was adopted. Under the system, KCC may designate and obligate certain telecommunications services providers to allow a mobile virtual network operator, or MVNO, at such MVNO’s request, to use their telecommunication facilities at a rate mutually agreed upon that complies with the standards set by the KCC. We were designated as the only telecommunications services provider obligated to allow the other telecommunications services provider to use our telecommunications facilities. An MVNO has commenced providing wireless data services in March 2011 and we expect that a few additional MVNOs will commence providing wireless telecommunications services using the networks leased from us beginning in the second half of 2011.

On May 13, 2010, the KCC announced a guideline recommending that telecommunication service providers limit their marketing expenses to 22% of their annual sales. Such marketing expenses include initial commissions, monthly commissions and retention commissions paid to our authorized dealers and subscribers, including handset subsidies, but do not include advertising expenses. While the guideline is not binding, we, as well as our competitors, nonetheless try to adhere to such guideline when feasible. Given that the competition in the telecommunication industry continues to intensify, such limitation on our ability to expend in marketing may have a material adverse effect on our business.

Interconnection. Dominant network service providers such as ourselves that own essential infrastructure facilities or possess a certain market share are required to provide interconnection of their telecommunications network facilities to other service providers upon request. The KCC sets and announces the standards for determining the scope, procedures, compensation and other terms and conditions of such provision, interconnection or co-use. We have entered into interconnection agreements with KT, LG U+, Onse Telecom Corporation and other network service providers permitting these entities to interconnect with our network. We expect that we will be required to enter into additional agreements with new operators as the KCC grants permits to additional telecommunications service providers.

Frequency Allocation. The KCC has the discretion to allocate and adjust the frequency band for each type of service. Upon allocation of new frequency bands or adjustment of frequency bands, the KCC is required to give a public notice. The KCC also regulates the frequency to be used by each radio station, including the transmission frequency used by equipment in our cell sites. All of our frequency allocations are for a definite term. We pay fees to the KCC for our frequency usage that are determined based upon our number of subscribers, frequency usage by our networks and other factors. For 2008, 2009 and 2010, the fee amounted to Won 163.9 billion, Won 159.7 billion and Won 178.8 billion, respectively.

In addition, we paid Won 650 billion of the Won 1.3 trillion as the cost of the IMT-2000 license in March 2001 and are required to pay the remainder of the license cost in annual installments for a five-year period from 2007

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through 2011. We are also required to pay the cost of our additional WCDMA license for 2 x 10 MHz of spectrum in the 2.1 GHz band that we acquired in May 2010 as discussed below in annual installments of Won 17.7 billion each year from 2012 through 2014. For more information, see note 8 of the notes to our consolidated financial statements for the years ended December 31, 2008, 2009 and 2010.

In February 2010, the KCC announced its final plan to reallocate 2 x 10 MHz of spectrum in the 800 MHz band that we are currently using to other service providers starting from July 2011. The KCC’s plan also contemplates new allocations of 2 x 10 MHz of spectrum in the 900 MHz band and 2 x 10 MHz of spectrum in the 2.1 GHz band for wireless telecommunication services. KT and LG U+ have been allocated the spectrum in the 900 MHz and 800 MHz bands, respectively. We have been allocated an additional 2 x 10 MHz of spectrum in the 2.1 GHz band for our use until December 2016, which we have been using for our 3G services since October 2010. In addition, in June 2011 the KCC announced its plan to sell 20 MHz of bandwidth in the 1.8 GHz spectrum, 20 MHz of bandwidth in the 2.1 GHz spectrum and 10 MHz of bandwidth in the 800 MHz spectrum. According to the plan, the additional spectrum will be sold in August 2011 through an auction, in which a maximum of 20 MHz bandwidth can be allocated to a service provider. We and KT cannot bid for the additional spectrum in the 2.1 GHz band because we and KT already have a spectrum in the 2.1 GHz band. If we are allocated additional bandwidths, we expect to pay usage fees for such bandwidths.

Mandatory Contributions and Obligations

Contributions to the Fund for Development of Information Telecommunications. The Ministry of Knowledge Economy has the authority to recommend to network service providers that they provide funds for national research and development of telecommunications technology and related projects. The required annual contribution is 0.5% (0.75% for market dominant service providers like us) of revenues from CDMA subscribers for the previous year, and is applicable only to those network service providers who have Won 30 billion in total sales for the previous year and have recorded no net loss in the current period. Under the policy, the maximum amount of the annual contribution to be made cannot exceed 70% of the net profit for the corresponding period of each company.

We are currently required to contribute 0.75% of budgeted revenues (calculated pursuant to the Ministry of Knowledge Economy guidelines that differ from our accounting practices) to the Fund for Development of Information Telecommunications operated by the Ministry of Knowledge Economy. Our contribution to this fund in 2008, 2009 and 2010 was Won 71.9 billion, Won 55.5 billion and Won 80.5 billion, respectively.

Universal Service Obligation. All telecommunications service providers other than value-added service providers, specific service providers and regional paging service providers or any telecommunications service providers whose net annual revenue is less than an amount determined by the KCC (currently set at Won 30.0 billion) are required to provide “universal” telecommunications services including local telephone services, local public telephone services, telecommunications services for remote islands and wireless communication services for ships and telephone services for the handicapped and low-income citizens, or contribute toward the supply of such universal services. The KCC designates universal services and the service provider who is required to provide each service. Currently, we are required to offer free subscription and a discount of between 35% to 50% of our monthly fee for cellular services to the handicapped and the low-income citizens.

In addition to such universal services for the handicapped and low-income citizens, we are also required to make certain monetary contributions to compensate for other service providers’ costs for the universal services. The size of a service provider’s contribution is based on its net annual revenue (calculated pursuant to KCC guidelines which differ from our accounting practices). In 2008, our contribution amount was Won 32.3 billion for our fiscal year 2007. In 2009, our contribution amount was Won 31.0 billion for our fiscal year 2008. In 2010, our contribution amount was Won 29.2 billion for our fiscal year 2009. As a wireless telecommunications services provider, we are not considered a provider of universal telecommunications services and do not receive funds for providing universal service. Other network service providers that do provide universal services make all or a portion of their “contribution” in the form of expenses related to the universal services they provide.

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Foreign Ownership and Investment Restrictions and Requirements

Because we are a network service provider, foreign governments, individuals, and entities (including Korean entities that are deemed foreigners, as discussed below) are prohibited from owning more than 49% of our voting stock. Korean entities whose largest shareholder is a foreign government or a foreigner (together with any of its related parties) that owns 15% or more of the outstanding voting stock of such Korean entities are also deemed foreigners. If this 49% ownership limitation is violated, certain of our foreign shareholders will not be permitted to exercise voting rights in excess of the limitation, and the KCC may require other corrective action.

As of December 31, 2010, SK Holdings owned 18,748,452 shares of our common stock, or approximately 23.22% of our issued shares. As of December 31, 2010, a foreign investment fund and its related parties collectively held a 3.1% stake in SK Holdings. If the foreign investment fund and its related parties increase their shareholdings in SK Holdings to 15% or more and such foreign investment fund and its related parties collectively constitute the largest shareholder of SK Holdings, SK Holdings will be considered a foreign shareholder, and its shareholding in us would be included in the calculation of our aggregate foreign shareholding. If SK Holdings’ shareholding in us is included in the calculation of our aggregate foreign shareholding, then our aggregate foreign shareholding, assuming the foreign ownership level as of December 31, 2010 (which we believe was 49.0%), would reach 72.22%, exceeding the 49% ceiling on foreign shareholding.

If our aggregate foreign shareholding limit is exceeded, the KCC may issue a corrective order to us, the breaching shareholder (including SK Holdings if the breach is caused by an increase in foreign ownership of SK Holdings) and the foreign investment fund and its related parties who own in the aggregate 15% or more of SK Holdings. Furthermore, SK Holdings may not exercise its voting rights with respect to the shares held in excess of the 49% ceiling, which may result in a change in control of us. In addition, the KCC may refuse to grant us licenses or permits necessary for entering into new telecommunications businesses until our aggregate foreign shareholding is reduced to below 49%. If a corrective order is issued to us by the KCC arising from the violation of the foregoing foreign ownership limit, and we do not comply within the prescribed period under such corrective order, the KCC may:

•	revoke our business license;
•	suspend all or part of our business; or
•	if the suspension of business is deemed to result in significant
inconvenience to our customers or to be detrimental to the
public interest, impose a one-time administrative penalty of up
to 3% of the average of our annual revenue for the preceding
three fiscal years.

Additionally, the Telecommunications Business Act also authorizes the KCC to assess monetary penalties of up to 0.3% of the purchase price of the shares for each day the corrective order is not complied with, as well as a prison term of up to one year or a penalty of Won 50 million. See “Item 3.D. Risk Factors — If SK Holdings causes us to breach the foreign ownership limitations on shares of our common stock, we may experience a change of control”.

We are required under the Foreign Exchange Transaction Act to file a report with a designated foreign exchange bank or with the Ministry of Strategy and Finance, or the MOSF, in connection with any issue of foreign currency denominated securities by us in foreign countries. Issuances of US$30 million or less require the filing of a report with a designated foreign exchange bank, and issuances that are over US$30 million in the aggregate within one year from the filing of a report with a designated foreign exchange bank require the filing of a report with the MOSF.

The Telecommunications Business Act provides for the creation of a Public Interest Review Committee under the KCC to review investments in or changes in the control of network services providers. The following events would be subject to review by the Public Interest Review Committee:

| • | the acquisition by an entity (and its related parties) of 15% or
more of the equity of a network services provider; |
| --- | --- |
| • | a change in the largest shareholder of a network services
provider; |

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| • | agreements by a network service provider or its shareholders
with foreign governments or parties regarding important business
matters of such network services provider, such as the
appointment of officers and directors and transfer of
businesses; and |
| --- | --- |
| • | a change in the shareholder that actually controls a network
services provider. |

If the Public Interest Review Committee determines that any of the foregoing transactions or events would be detrimental to the public interest, then the KCC may issue orders to stop the transaction, amend any agreements, suspend voting rights, or divest the shares of the relevant network services provider. Additionally, if a dominant network services provider (which would currently include us and KT), together with its specially related persons (as defined under the Financial Investment Services and Capital Markets Act) holds more than 5% of the equity of another dominant network services provider, the voting rights on the shares held in excess of the 5% limit may not be exercised.

Patents and Licensed Technology

Access to the latest relevant technology is critical to our ability to offer the most advanced wireless services and to design and manufacture competitive products. In addition to active internal and external research and development efforts as described in “Item 5.C. Research and Development”, our success depends in part on our ability to obtain patents, licenses and other intellectual property rights covering our products. We own numerous patents and trademarks worldwide, and have applications for patents pending in many countries, including Korea, Japan, China, the United States, and Europe. Our patents are mainly related to CDMA technology and wireless Internet applications. We also acquired a number of patents related to WCDMA technology.

We also license a number of patented processes and trademarks under cross-licensing, technical assistance and other agreements. The most important agreement is with Qualcomm Inc. and relates mainly to CDMA applications technology. This agreement generally grants us a non-exclusive license to manufacture handsets in return for royalty payment or a sub-license to manufacture and sell certain products both in Korea and overseas during a fixed, but usually renewable term. We consider our technical assistance and licensing agreements to be important to our business and believe that we will be able to renew this agreement on commercially reasonable terms that will not adversely affect our ability to use the relevant technologies.

We are not currently involved in any material litigation regarding patent infringement. For a description of the risks associated with our reliance on intellectual property, see “Item 3.D. Risk Factors — Our business relies on technology developed by us as well as technologies provided by third parties, and our business will suffer if we are unable to protect our proprietary rights, obtain new licensing agreements or renew existing licensing agreements with third parties”.

Seasonality of the Business

Our business is not affected by seasonality.

Item 4.C. Organizational Structure

Organizational Structure

We are a member of the SK Group, based on the definition of “group” under the Fair Trade Act of Korea. As of December 31, 2010, SK Group members owned in aggregate 23.2% of the shares of our issued common stock. The SK Group is a diversified group of companies incorporated in Korea with interests in, among other things, telecommunications, trading, energy, chemicals, engineering and leisure industries. Until mid-1994, our largest shareholder was KT (formerly known as Korea Telecom Corp.), Korea’s principal fixed-line operator that merged with KTF, one of our principal wireless competitors.

Significant Subsidiaries

For information regarding our subsidiaries, see note 2(b) of the notes to our consolidated financial statements.

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Item 4.D. Property, Plants And Equipment

The following table sets forth certain information concerning our principal properties as of December 31, 2010:

Location	Primary Use	Approximate Area — in Square Feet
Seoul Metropolitan Area	Corporate Headquarters	988,447
	Regional Headquarters	1,095,997
	Customer Service Centers	162,406
	Training Centers	670,941
	Central Research and Development Center	482,719
	Others(1)	961,095
Busan	Regional Headquarters	363,282
	Others(1)	569,177
Daegu	Regional Headquarters	40,279
	Others(1)	332,726
Cholla and Jeju Provinces	Regional Headquarters	491,533
	Others(1)	454,410
Choongchung Province	Regional Headquarters	751,710
	Others(1)	470,726

(1) Include cell sites.

In December 2004, we constructed a building with an area of approximately 82,624 square feet, of which we have full ownership, for use as our corporate headquarters. We relocated our corporate offices into the new building in January 2005. In addition, we own or lease various locations for cell sites and switching equipment. We do not anticipate that we will encounter material difficulties in meeting our future needs for any existing or prospective leased space for our cell sites. See “Item 4.B. Business Overview — Digital Cellular Network — Network Infrastructure”.

We maintain a range of insurance policies to cover our assets and employees, including our directors and officers. We are insured against business interruption, fire, lightening, flooding, theft, vandalism, public liability and certain other risks that may affect our assets and employees. We believe that the types and amounts of our insurance coverage are in accordance with general business practices in Korea.

Item 4A. UNRESOLVED STAFF COMMENTS

We do not have any unresolved comments from the U.S. Securities and Exchange Commission, or the SEC, staff regarding our periodic reports under the Exchange Act.

ITEM 5. OPERATING AND FINANCIAL REVIEW AND PROSPECTS

You should read the following discussion together with our consolidated financial statements and the related notes thereto which appear elsewhere in this annual report. We prepare our financial statements in accordance with Korean GAAP, which differs in some respects from U.S. GAAP. Notes 32 and 33 of the notes to our consolidated financial statements provide a description of the significant differences between Korean GAAP and U.S. GAAP as they relate to us and provide a reconciliation to U.S. GAAP of our net income and shareholders’ equity for fiscal years 2008, 2009 and 2010. In addition, you should read carefully the section titled “— Critical Accounting Policies, Estimates and Judgments” as well as note 2 of the notes to our consolidated financial statements which provide summaries of certain critical accounting policies that require our management to make difficult, complex or subjective judgments relating to matters which are highly uncertain and that may have a material impact on our financial conditions and results of operations.

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Item 5.A. Operating Results

Overview

We earn revenue principally from initial subscription fees and monthly plan-based fees, usage charges for outgoing voice calls, usage charges for wireless data services and value-added service fees paid by subscribers to our wireless services and interconnection fees paid to us by other telecommunications operators for use of our network by their customers and subscribers. Our revenue amount depends principally upon the number of our wireless subscribers, the rates we charge for our services, the frequency and volume of subscriber usage of our services and the terms of our interconnection with other telecommunications operators. Government regulation also affects our revenues.

A number of recent developments have had or are expected to have a material impact on our results of operations, financial condition and capital expenditures. These developments include:

Number Portability and Common Prefix Identification System. In January 2003, the Government announced a plan to implement number portability with respect to wireless telecommunications service in Korea. The number portability system allows wireless subscribers to switch wireless service operators while retaining the same mobile phone number. In order to manage the availability of phone numbers efficiently and to secure phone number resources for new services, in January 2004, the Government also began implementing a plan to integrate all mobile telephone numbers under the common prefix identification number “010”, including by gradually retracting the current mobile service identification numbers that had been unique to each wireless telecommunications service provider. All new subscribers have been given the “010” prefix starting January 2004.

We believe that the adoption of the common prefix identification system has had, and may continue to have, a greater negative effect on us than on our competitors because, historically, “011” has had very high brand recognition in Korea as the premium wireless telecommunications service. Adoption of the number portability system has resulted in, and may continue to result in, increased competition among wireless service providers and higher costs as a result of maintaining the number portability system, increased subscriber deactivations, increased churn rate and higher marketing costs. For a more detailed discussion of the common prefix identification number plan, see “Item 4.B. Business Overview — Subscribers — Number Portability” and “Item 3.D. Risk Factors — Our businesses are subject to extensive Government regulation and any change in Government policy relating to the telecommunications industry could have a material adverse effect on our results of operations, financial condition and cash flows”.

Handset Subsidies. In March 2006, the Government partially lifted, and in March 2008 fully lifted, the prohibition on the provision of handset subsidies, which had been in place since June 2000, and began to allow mobile service providers to subsidize the purchase of new handsets by certain qualifying customers. In order to compete more effectively, we have begun providing such handset subsidies, which has increased, and may continue to increase, our marketing expenses. Since April 2008, we have also begun offering long-term installment payment plans of 24 months for new handset purchases by our new or existing subscribers, which has increased, and may continue to increase, our capital requirements. However, on May 13, 2010, the KCC announced a guideline recommending that telecommunication service providers limit their marketing expenses to 22% of their annual sales. Such marketing expenses include initial commissions, monthly commissions and retention commissions paid to our authorized dealers and subscribers, including handset subsidies, but do not include advertising expenses. While the guideline is not binding, we, as well as our competitors, nonetheless try to adhere to such guideline when feasible, which may have a material adverse effect on our businesses and results of operations.

Changes in Tariffs and Interconnection Fees. Under current regulations, we must obtain prior KCC approval of the rates and fees we charge subscribers for our cellular services. Generally, the rates we charge for our services have been declining. The KCC has periodically reviewed the tariffs charged by wireless operators and has, from time to time, suggested tariff reductions. Although these suggestions are not binding, we have in the past implemented some tariff reductions in response to KCC recommendations. For more information about the rates we charge, see “Item 4.B. Business Overview — Revenues, Rates and Subscription Deposits” and “Item 4.B. Business Overview — Law and Regulation — Competition Regulation — Rate Regulation”.

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In addition, our wireless telecommunications services depend, in part, on our interconnection arrangements with domestic and international fixed-line and other wireless networks. Charges for interconnection affect our revenues and operating results. The KCC determines the basic framework for interconnection arrangements in Korea and has changed this framework several times in the past. Under our interconnection agreements, we are required to make payments in respect of calls which originate from our networks and terminate in the networks of other Korean telecommunications operators, and the other operators are required to make payments to us in respect of calls which originate in their networks and terminate in our network. For more information about our interconnection revenue and expenses, see “Item 4.B. Business Overview — Interconnection”.

Average Monthly Outgoing Voice Minutes and Revenue per Subscriber. The following table sets forth selected information concerning our wireless telecommunications network during the periods indicated:

	Year Ended December 31, — 2008		2009		2010
Outgoing voice minutes (in thousands)(1)		54,080,231		56,111,864		60,015,518
Average monthly outgoing voice minutes per subscriber(2)		200		197		199
Average monthly revenue per subscriber, excluding
interconnection revenue(3)	W	38,526	W	38,171	W	37,287
Average monthly revenue per subscriber, including
interconnection revenue(4)	W	43,016	W	42,469	W	41,374

| (1) | Does not include minutes of incoming calls or minutes of use
relating to the use of SMS, MMS and other wireless data services. |
| --- | --- |
| (2) | The average monthly outgoing voice minutes per subscriber is
derived by dividing the total minutes of outgoing voice usage
for the period by the monthly average number of subscribers for
the period, then dividing that number by the number of months in
the period. The monthly average number of subscribers is derived
by dividing (i) the sum of the average number of
subscribers for each month in the period, calculated as the
average of the number of subscribers on the first and last days
of the relevant month, by (ii) the number of months in the
period. |
| (3) | The average monthly revenue per subscriber, excluding
interconnection revenue, is derived by dividing the sum of total
initial subscription fees, monthly plan-based fees, usage
charges for outgoing voice calls, usage charges for wireless
data services, value-added service fees and other miscellaneous
revenues for the period by the monthly average number of
subscribers for the period, then dividing that number by the
number of months in the period. |
| (4) | The average monthly revenue per subscriber, including
interconnection revenue, is derived by dividing the sum of total
initial subscription fees, monthly plan-based fees, usage
charges for outgoing voice and wireless data transmissions,
charges for purchases of digital contents, value-added service
fees, other miscellaneous revenues and interconnection revenue
for the period by the monthly average number of subscribers for
the period, then dividing that number by the number of months in
the period. |

Our average monthly outgoing minutes of voice traffic per subscriber decreased by 1.5% in 2009 and increased by 1.0% in 2010. We believe our average monthly outgoing minutes have been relatively stable in recent years primarily due to the existing high penetration rate of wireless services in Korea and the general maturation of the Korean wireless market.

Our average monthly revenue per subscriber, excluding interconnection revenue, decreased by 0.9% to Won 38,171 in 2009 from Won 38,526 in 2008 and decreased by 2.3% to Won 37,287 in 2010 from Won 38,171 in 2009. The decrease in average monthly revenue per subscriber in 2009 was due to decreases in average monthly revenue per subscriber from usage charges for voice services and initial subscription fees, partially offset by increases in average monthly revenue per subscriber from monthly plan-based fees and wireless data services. The decrease in average monthly revenue per subscriber in 2010 was due to decreases in average monthly revenue per subscriber from usage charges for voice services and initial subscription fees, partially offset by increases in average

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monthly revenue per subscriber from value-added and other service fees, wireless data services and monthly plan-based fees as further described in “— Operating Results” below.

Acquisition of SK Broadband Shares. In March 2008, we completed the acquisition of an additional 38.7% equity stake in SK Broadband, Korea’s second-largest fixed-line operator, for approximately Won 1.1 trillion, increasing our total equity interest in SK Broadband to 43.4%. In July 2009, we acquired additional shares of SK Broadband’s common stock, and our equity stake in SK Broadband increased to 50.6%. Following the 2008 acquisition, SK Broadband became our consolidated subsidiary under Korean GAAP and our results of operations beginning in 2009 include those of SK Broadband. SK Broadband and its subsidiaries had revenues of Won 1,886.3 billion, Won 1,904.9 billion and Won 2,122.4 billion and net loss of Won 178.3 billion, Won 263.0 billion and Won 120.8 billion for 2008, 2009 and 2010, respectively. For a more detailed discussion of our acquisition of SK Broadband, see “Item 4.B. Business Overview — Our Services — Broadband Internet and Fixed-line Telephone Services” and “Item 3.D. Risk Factors — Our growth strategy calls for significant investments in new businesses and regions, including businesses and regions in which we have limited experience”.

Acquisition of SK Networks Assets. In September 2009, we acquired the leased-line business and related ancillary businesses, including all assets, liabilities and other rights and obligations related to such businesses, of SK Networks. The acquisition price was Won 892.8 billion. As of September 30, 2009, the assets and liabilities of the businesses being acquired amounted to Won 635.9 billion and Won 611.4 billion, respectively.

Acquisition of Hana SK Card Shares. In accordance with the resolution of our board of directors in December 2009, we purchased shares of Hana SK Card for Won 402 billion in February 2010. We currently hold 49% of the total outstanding shares of Hana SK Card.

Operating Expenses and Operating Margins. Our operating expenses consist principally of commissions paid to authorized dealers and our subscribers (including handset subsidies), depreciation and amortization, network interconnection, labor costs, leased line expenses, advertising expenses and rent expenses. Operating income represented 12.5% of our operating revenue in 2008, 12.9% in 2009 and 12.6% in 2010.

Reclassification of Prior Year Financial Statements

Reclassifications related to discontinued operations for comparative purposes have been made as follows. We and SK Communications Co., Ltd., one of our subsidiaries, sold the Spicus division, a telephone English education division, to Spicus Inc., a subsidiary of Altos Ventures, in August 2009 and sold Etoos Co., Ltd. to Cheong Sol in October 2009. Operating revenue, operating expenses, operating income and income before income taxes and minority interest for the year ended December 31, 2008 have been revised to exclude the Spicus division’s and Etoos’ results of operations. In addition, we sold shares of iHQ, Inc. in April and July 2010 and liquidated SK-KTB Music Investment Fund in October 2010. Operating revenue, operating expenses, operating income and income before income taxes and minority interest for the years ended December 31, 2008 and 2009 have been revised to exclude the iHQ, Inc.’s and SK-KTB Music Investment Fund’s results of operations.

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Operating Results

The following table sets forth selected income statement data, including data expressed as a percentage of operating revenue, for the periods indicated:

	For the Year Ended December 31,
	2008					2009					2010
	(In billions of Won, except percentage data)
Operating Revenue	W	13,951.0		100.0	%	W	14,512.3		100.0	%	W	15,435.4		100.0	%
Operating Expenses		12,190.7		87.4			12,631.1		87.0			13,493.1		87.4
Operating Income		1,760.3		12.6			1,881.2		13.0			1,942.3		12.6
Other Income		1,055.1		7.6			876.0		6.0			629.4		4.1
Other Expenses		1,537.9		11.0			1,351.4		9.3			898.0		5.8
Income from Continuing Operation before Income Tax		1,277.5		9.2			1,405.8		9.7			1,673.7		10.8
Income Tax for Continuing Operation		299.3		2.1			355.7		2.5			404.3		2.6
Preacquisition Net Loss of Subsidiaries		32.6		0.2			0.0		0.0			23.4		0.2
Income (Loss) from Discontinued Operation(1)		(38.5	)	(0.3	)		5.5		0.0			4.4		0.0
Net Income Attributable to:
Controlling Interests		1,215.7		8.7			1,247.2		8.6			1,379.6		8.9
Non-controlling Interests		(243.4	)	(1.7	)		(191.6	)	(1.3	)		(82.4	)	(0.5	)
Net Income	W	972.3		7.0	%		1,055.6		7.3			1,297.2		8.4
Depreciation and Amortization(2)	W	2,599.2		18.6	%	W	2,593.5		17.9	%	W	2,723.6		17.6	%

| (1) | Relates to results of operations of HELIO sold in August 2008,
the Spicus division sold in August 2009, Etoos Co., Ltd. sold in
October 2009, iHQ, Inc. sold in April and July 2010 and SK-KTB
Music Investment Fund liquidated in October 2010, which have
been classified as discontinued operations after such sale or
liquidation. |
| --- | --- |
| (2) | Excludes the depreciation and amortization allocated to internal
research and development costs and manufacturing costs of Won
156.2 billion, Won 136.5 billion and Won
145.2 billion for the years ended December 31, 2008,
2009 and 2010, respectively. |

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The following table sets forth additional information about our operations during the periods indicated:

	Year Ended December 31,
	2008			2009			2010
		Percentage			Percentage			Percentage
		of Total			of Total			of Total
	Amount	Revenue		Amount	Revenue		Amount	Revenue
	(In billions of Won, except percentages)
Cellular Revenue:
Wireless Services(1)	W	10,403.1	74.6 %	W	10,734.4	74.0 %	W	11,057.3	71.6 %
Interconnection		1,149.2	8.2		1,158.0	8.0		1,141.2	7.4
Digital Handset Sales		—	—		185.3	1.3		534.4	3.5
Other(2)		26.8	0.2		13.9	0.1		105.8	0.7
Total Cellular Revenue		11,579.1	83.0		12,091.6	83.4		12,838.7	83.2
Fixed-line Telecommunication Service (3)
Fixed-line Telephone Service		527.4	3.8		378.6	2.6		266.5	1.7
Interconnection		—	—		87.4	0.6		96.3	0.6
Broadband Internet Service		1,384.5	9.9		1,351.1	9.3		1,503.3	9.8
International Calling Service		243.0	1.7		275.0	1.9		298.1	1.9
Total Fixed-line Telecommunication Service		2,154.9	15.4		2,092.1	14.4		2,164.2	14.0
Other Revenue:
Portal Service(4)		199.7	1.5		201.1	1.4		239.1	1.5
Miscellaneous(5)		17.3	0.1		127.5	0.9		193.3	1.3
Total Other Revenue		217.0	1.6		328.6	2.3		432.4	2.8
Total Operating Revenue	W	13,951.0	100.0 %	W	14,512.3	100.0 %	W	15,435.3	100.0 %
Total Operating Revenue Growth		17.8 %			4.0 %			6.4 %
Operating Expenses:
Cellular		9,322.5	66.8		9,719.9	66.9		10,562.8	68.4
Fixed-line Telephone Service		2,132.1	15.3		2,263.2	15.6		2,342.8	15.2
Other		736.1	5.3		648.0	4.5		587.5	3.8
Total Operating Expenses	W	12,190.7	87.4 %	W	12,631.1	87.0 %	W	13,493.1	87.4 %

| (1) | Wireless services revenue includes initial subscription fees,
monthly plan-based fees, usage charges for outgoing voice calls,
usage charges for wireless data services, value-added-service
fees and other miscellaneous cellular revenues, including
international interconnection charges, interest on overdue
subscriber accounts (net of telephone tax). |
| --- | --- |
| (2) | Other cellular revenue includes revenue from the sale and
licensing of Internet platform solutions. |
| (3) | Includes revenues from broadband Internet service (including
corporate data service) and fixed-line telephone service
provided by SK Broadband Co., Ltd. and international calling
service provided by SK Telink Co. Ltd., both of which are our
consolidated subsidiaries. |
| (4) | Portal service revenue attributable to our subsidiaries
(including SK Communications and Paxnet Co., Ltd., which
operates Moneta, our financial portal site). |
| (5) | Miscellaneous revenue attributable to our subsidiaries
(including Loen Entertainment Inc., which operates MelOn music
portal site that sells digital music contents, Ntreev Soft Co.,
Ltd., an on-line game developer, SK Telecom China Holdings Co.,
Ltd. and F&U Credit Information Co., Ltd.). |

2010 Compared to 2009

Operating Revenue. Our operating revenue increased by 6.4% to Won 15,435.4 billion in 2010 from Won 14,512.3 billion in 2009, due to a 6.2% increase in our cellular revenue to Won 12,838.7 billion in 2010 from Won 12,091.6 billion in 2009, a 3.4% increase in our fixed-line telecommunication revenue to Won 2,164.2 billion in 2010 from Won 2,092.1 billion in 2009 and a 31.6% increase in our other revenue to Won 432.4 billion in 2010 from Won 328.6 billion in 2009.

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Cellular Telephone Telecommunication Service Business

The operating revenue of our cellular telephone telecommunication service business, which is composed of revenues from wireless services, interconnection, digital handset sales and other services, increased by 6.2% to Won 12,838.7 billion in 2010 from Won 12,091.6 billion in 2009.

The increase in our cellular revenue was principally due to an increase in our digital handset sales, as well as an increase in our wireless services revenue, partially offset by a decrease in interconnection revenue. Digital handset sales, which commenced in April 2009, increased 188.4% to Won 534.4 billion in 2010 from Won 185.3 billion in 2009, primarily as a result of strong demand for smartphones. Wireless services revenue increased 3.0% to Won 11,057.3 billion in 2010 from Won 10,734.4 billion in 2009, primarily as a result of increases in revenues from wireless data services and monthly plan-based fees driven by increased subscription to fixed-price data and voice plans with higher monthly basic charges, due in large part to an increase in the number of smartphone users, as well as a 5.7% increase in our average subscriber base in 2010 over 2009, partially offset by a decrease in revenue from call charges as a result of increase in number of subscribers signing up for call plans with higher monthly basic charges and lower call charges.

Our average monthly revenue per subscriber, excluding interconnection revenue, decreased by 2.3% to Won 37,287 in 2010 from Won 38,171 in 2009, due to decreases in average monthly revenue per subscriber from usage charges for outgoing voice calls and initial subscription fees, partially offset by increases in average monthly revenue per subscriber from value-added and other service fees, wireless data services and monthly plan-based fees. Our average monthly revenue per subscriber from usage charges for outgoing calls decreased in 2010, primarily due to increased subscription to call plans with higher monthly basic charges and lower call charges. Our average monthly revenue per subscriber from initial subscription fees decreased in 2010, primarily due to the reduction of our initial subscription fee from Won 50,000 to Won 36,000 per line from November 2009. Our average monthly revenue per subscriber from value-added and other service fees increased in 2010, primarily due to an increase in revenues from global roaming services and leased-line revenue. Our average monthly revenue per subscriber from wireless data services, which includes usage charges for SMS and wireless Internet services, increased in 2010, attributable mainly to an increase in revenue from data flat rate plans. Our average monthly revenue per subscriber from monthly plan-based fees increased in 2010, primarily as a result of increased subscription to our service plans with higher monthly basic charges.

Our average monthly minutes per user increased to 199 minutes in 2010 from 197 minutes in 2009.

Interconnection revenue decreased by 1.5% to Won 1,141.2 billion in 2010 from Won 1,158.0 billion in 2009. The decrease was due to decreases in interconnection rates in 2010, which more than offset an increase in incoming call volume. Our average monthly revenue per subscriber, including interconnection revenue, decreased 2.6% to Won 41,374 in 2010 from Won 42,469 in 2009.

Fixed-line Telecommunication Service Business

The operating revenue of our fixed-line telecommunication service business, which is composed of revenues from broadband Internet service (including corporate data service), fixed-line telephone service and international calling service, increased by 3.4% to Won 2,164.2 billion in 2010 from Won 2,092.1 billion in 2009, primarily due to increases in revenue from broadband Internet service and international calling service, partially offset by a decrease in revenue from fixed-line telephone service.

The increase in our revenue from broadband Internet service in 2010 resulted primarily from the initiation of services to new corporate customers including members of SK Group as well as an increase in the number of individual subscribers, partially offset by a decrease in average monthly revenue per subscriber. The increase in our international calling service revenue was primarily due to an increase in call volume. The decrease in our fixed-line telephone revenue was primarily due to a decrease in average monthly revenue per subscriber resulting from discounts offered to subscribers of bundled services.

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Other Businesses

The operating revenue of our other businesses, which is composed of revenues from portal service and certain other revenue, increased by 31.6% to Won 432.4 billion in 2010 from Won 328.6 billion in 2009.

Portal service revenues increased 18.9% to Won 239.1 billion in 2010 from Won 201.1 billion in 2009 mainly due to an increase in advertisement revenue from our NATE portal. Miscellaneous revenue increased by 51.6% to Won 193.3 billion in 2010 from Won 127.5 billion in 2009 due among others to an increase in digital music sales at our MelOn music portal.

Operating Expenses. Our operating expenses in 2010 increased by 6.8% to Won 13,493.1 billion from Won 12,631.1 billion in 2009, primarily due to increases in marketing expenses in the form of commissions paid and in cost of goods sold for our digital handset sales, partially offset by a decrease in leased line expense.

Cellular Telephone Telecommunication Service Business

The operating expenses of our cellular telephone telecommunication service business increased by 8.7% to Won 10,562.8 billion in 2010 from Won 9,719.9 billion in 2009, primarily due to increases in commissions paid and cost of goods sold, partially offset by a decrease in leased line expense. The increase in commissions paid, including to our authorized dealers and to our subscribers, was primarily attributable to increases in initial commissions and monthly commissions resulting from an increase in the number of new subscribers. The cost of goods sold increased primarily due to an increase in digital handset sales in 2010, which was driven by strong demand for smartphones. The decrease in leased line expense resulted primarily from the increased use of our own transmission lines following our acquisition of SK Networks’ leased line business in September 2009.

Fixed-line Telecommunication Service Business

The operating expenses of our fixed-line telecommunication service business increased by 3.5% to Won 2,342.8 billion in 2010 from Won 2,263.2 billion in 2009, primarily due to an increase in license fees paid to the providers of broadcasting programs for our IP TV services, as well as an increase in service fees paid in connection with the operation of our customer service call centers.

Other Businesses

The operating expenses of our other businesses decreased by 9.3% to Won 587.5 billion in 2010 from Won 648.0 billion in 2009, primarily due to the exclusion of operating expenses of certain subsidiaries that were excluded from consolidation in 2010.

Operating Income. Our operating income increased by 3.2% to Won 1,942.3 billion in 2010 from Won 1,881.2 billion in 2009. Due to the factors discussed above, the operating income of our cellular telephone telecommunication service business decreased by 4.0% to Won 2,275.9 billion in 2010 from Won 2,371.6 billion in 2009, the operating loss of our fixed-line telecommunication service business increased by 4.4% to Won 178.5 billion in 2010 from Won 171.0 billion in 2009 and the operating loss of our other businesses decreased by 51.4% to Won 155.1 billion in 2010 from Won 319.4 billion in 2009.

Other Income. Other income consists primarily of interest income, foreign exchange and translation gains and gains on transactions and valuation of derivatives, as well as dividend income and equity in earnings of affiliates. Other income decreased by 28.2% to Won 629.4 billion in 2010 from Won 876.0 billion in 2009, due primarily to a decrease in dividend income, partially offset by an increase in interest income. The decrease in dividend income was primarily due to the decrease in dividends from Global Opportunities Breakaway Fund, a venture capital fund, and our sale of China Unicom and SK C&C shares in 2009.

Other Expenses. Other expenses consist primarily of interest and discount expenses, donations, external research and development cost, loss on disposal of property, equipment and intangible assets, as well as foreign exchange and translation losses and losses on transactions and valuation of derivatives. Other expenses decreased by 33.6% to Won 898.0 billion in 2010 from Won 1,351.4 billion in 2009. This decrease was primarily attributable to the incurrence in 2009 of a loss on our sale of China Unicom shares compared to no such loss in 2010, as well as a

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decrease in interest and discount expenses and a decrease in net loss on transactions and valuation of derivatives, partially offset by an increase in donations.

Income Tax. Income tax for continuing operation increased by 13.7% to Won 404.3 billion in 2010 from Won 355.7 billion in 2009. Our effective tax rate in 2010 decreased to 24.2% from an effective tax rate of 25.3% in 2009. Income taxes increased in 2010 compared to 2009 primarily due to an increase in our income from continuing operation before income tax.

Net Income. Principally as a result of the factors discussed above, our net income, after adjusting for non-controlling interests, increased by 22.9% to Won 1,297.2 billion in 2010 from Won 1,055.6 billion in 2009. Net income as a percentage of operating revenues was 8.4% in 2010 compared to 7.3% in 2009.

2009 Compared to 2008

Operating Revenue. Our operating revenue increased by 4.0% to Won 14,512.3 billion in 2009 from Won 13,951.0 billion in 2008, due to a 4.4% increase in our cellular revenue to Won 12,091.6 billion in 2009 from Won 11,579.1 billion in 2008 and a 51.4% increase in our other revenue to Won 328.6 billion in 2009 from Won 217.0 billion in 2008, partially offset by a 2.9% decrease in our fixed-line telecommunication revenue to Won 2,092.1 billion in 2009 from Won 2,154.9 billion in 2008.

Cellular Telephone Telecommunication Service Business

The operating revenue of our cellular telephone telecommunication service business, which is composed of revenues from wireless services, interconnection, digital handset sales and other services, increased by 4.4% to Won 12,091.6 billion in 2009 from Won 11,579.1 billion in 2008.

The increase in our cellular revenue was principally due to an increase in our wireless services revenue, as well as digital handset sales of Won 185.3 billion by PS & Marketing, a wholly-owned subsidiary, in 2009 compared to no such sales in 2008. Wireless services revenue increased 3.2% to Won 10,734.4 billion in 2009 from Won 10,403.1 billion in 2008, primarily as a result of a 5.1% increase in our average subscriber base in 2009 over 2008, as well as increased subscriptions to service plans with higher monthly charges, partially offset by a decrease in revenue from call charges as a result of increase in number of subscribers signing up for discount price plans.

Our average monthly revenue per subscriber, excluding interconnection revenue, decreased by 0.9% to Won 38,171 in 2009 from Won 38,526 in 2008, which reflects the net effect of several factors, including a decrease in call charges for voice services and sign up fees, partially offset by increases in average monthly revenue per subscriber from monthly fee plans. Our average monthly revenue per subscriber from wireless data services, which includes usage charges for SMS and wireless Internet services, increased in 2009, attributable mainly to an increase in revenue from flat rate data plans. Our average monthly revenue per subscriber from usage charges for outgoing calls decreased in 2009, primarily due to discounts we offered for voice calls between subscribers. Our average monthly minutes per user declined to 197 minutes in 2009 from 200 minutes in 2008. Our average monthly revenue per subscriber from value-added and other service fees increased in 2009, primarily due to an increase in revenues from global roaming services and leased-line revenue.

Interconnection revenue increased by 0.8% to Won 1,158.0 billion in 2009 from Won 1,149.2 billion in 2008. The increase was due to increases in incoming call volume, which more than offset the decrease in interconnection rates in 2009. Our average monthly revenue per subscriber, including interconnection revenue, decreased 1.3% to Won 42,469 in 2009 from Won 43,016 in 2008.

Fixed-line Telecommunication Service Business

The operating revenue of our fixed-line telecommunication service business, which is composed of revenues from broadband Internet service (including corporate data service), fixed-line telephone service and international calling service, decreased by 2.9% to Won 2,092.1 billion in 2009 from Won 2,154.9 billion in 2008, primarily due to a decrease in average monthly revenue per subscriber resulting from discounts offered to subscribers of bundled

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services and a decrease in fixed-line call charges, partially offset by an increase in revenues from international calling service and an increase in the number of subscribers to our broadband Internet, IP TV and VoIP services.

Other Businesses

The operating revenue of our other businesses, which is composed of revenues from portal service and certain other revenue, increased by 51.4% to Won 328.6 billion in 2009 from Won 217.0 billion in 2008.

Portal service revenues increased 0.7% to Won 201.1 billion in 2009 from Won 199.7 billion in 2008 mainly due to an increase in revenue from Moneta, our financial portal. Miscellaneous revenue increased by 637.0% to Won 127.5 billion in 2009 from Won 17.3 billion in 2008 due among others to an increase in digital music sales at our MelOn music portal.

Operating Expenses. Our operating expenses in 2009 increased by 3.6% to Won 12,631.1 billion from Won 12,190.7 billion in 2008, primarily due to increases in marketing expenses in the form of commissions paid and in cost of goods sold for our digital handset sales, partially offset by a decrease in leased line expense.

Cellular Telephone Telecommunication Service Business

The operating expenses of our cellular telephone telecommunication service business increased by 4.3% to Won 9,719.9 billion in 2009 from Won 9,322.5 billion in 2008, primarily due to increases in commissions paid, cost of goods sold and provision for bad debt, partially offset by a decrease in leased line expense. Commissions paid, including to our authorized dealers and to our subscribers, increased in 2009, primarily attributable to an increase in initial commissions resulting from intensified marketing competition and in the number of new subscribers. The cost of goods sold increased primarily due to the commencement of digital handset sales in April 2009. The increase in provision for bad debt resulted primarily from the increase in bad debt experience ratio from accounts receivable-trade. The decrease in leased line expense resulted primarily from the increased use of our own transmission lines following our acquisition of SK Networks’ leased line business in September 2009.

Fixed-line Telecommunication Service Business

The operating expenses of our fixed-line telecommunication service business increased by 6.1% to Won 2,263.2 billion in 2009 from Won 2,132.1 billion in 2008, primarily due to an increase in the marketing expenses paid in the form of commissions to the subscribers as a result of an increase in the number of subscribers.

Other Businesses

The operating expenses of our other businesses decreased by 12.0% to Won 648.0 billion in 2009 from Won 736.1 billion in 2008, primarily due to the exclusion of operating expenses of certain subsidiaries that were excluded from consolidation in 2009.

Operating Income. Our operating income increased by 6.9% to Won 1,881.2 billion in 2009 from Won 1,760.3 billion in 2008. Due to the factors discussed above, the operating income of our cellular telephone telecommunication service business increased by 5.1% to Won 2,371.6 billion in 2009 from Won 2,256.6 billion in 2008 and the operating loss of our other businesses decreased by 38.5% to Won 319.4 billion in 2009 from Won 519.1 billion in 2008. In our fixed-line telecommunication service business, we had operating loss of Won 171.0 billion in 2009 compared to operating income of Won 22.8 billion in 2008.

Other Income. Other income consists primarily of foreign exchange and translation gains and gains on transactions and valuation of derivatives, as well as interest income, dividend income and equity in earnings of affiliates. Other income decreased by 17.0% to Won 876.0 billion in 2009 from Won 1,055.2 billion in 2008, due primarily to a decrease in net foreign exchange and translation gain.

Other Expenses. Other expenses consist primarily of interest and discount expenses, losses on transactions and valuation of derivatives, foreign exchange and translation losses and impairment loss on investment securities. Other expenses decreased by 12.1% to Won 1,351.4 billion in 2009 from Won 1,537.9 billion in 2008. This decrease

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was primarily attributable to a decrease in net loss on transactions and valuation of derivatives and impairment loss on investment securities.

Income Tax. Income tax for continuing operation increased by 18.8% to Won 355.7 billion in 2009 from Won 299.3 billion in 2008. Our effective tax rate in 2009 increased to 25.3% from an effective tax rate of 23.4% in 2008. Income taxes increased in 2009 compared to 2008 primarily due to an increase in our income from continuing operation before income tax and an increase in valuation allowance, which together more than offset a decrease in corporate income tax rate to 22% in 2009 from 25% in 2008.

Net Income. Principally as a result of the factors discussed above, our net income, after adjusting for non-controlling interests, increased by 8.6% to Won 1,055.6 billion in 2009 from Won 972.3 billion in 2008. Net income as a percentage of operating revenues was 7.3% in 2009 compared to 7.0% in 2008.

Inflation

We do not consider that inflation in Korea has had a material impact on our results of operations in recent years. According to data published by The Bank of Korea, annual inflation in Korea was 4.7% in 2008, 2.8% in 2009 and 2.9% in 2010.

Item 5.B. Liquidity and Capital Resources

Liquidity

We had a working capital (current assets minus current liabilities) surplus of Won 793.6 billion, Won 1,475.7 billion and Won 1,057.7 billion as of December 31, 2008, 2009 and 2010, respectively.

We had cash, cash equivalents, short-term financial instruments and short-term investment securities of Won 1,752.7 billion as of December 31, 2008, Won 1,682.3 billion as of December 31, 2009 and Won 1,753.0 billion as of December 31, 2010. We had outstanding short-term borrowings of Won 627.7 billion as of December 31, 2008, Won 677.2 billion as of December 31, 2009 and Won 529.6 billion as of December 31, 2010. As of December 31, 2010, we had credit lines with several local banks that provided for borrowings of up to Won 1,357.2 billion, of which Won 509.4 billion was outstanding and Won 847.8 billion was available for borrowing.

Operating cash flow and debt financing have been our principal sources of liquidity. We had cash and cash equivalents of Won 778.5 billion as of December 31, 2010, Won 953.9 billion as of December 31, 2009 and Won 1,011.3 billion as of December 31, 2008. We believe that we have sufficient working capital available to us for our current requirements and that we have a variety of alternatives available to us to satisfy our financial requirements to the extent that they are not met by funds generated by operations, including the issuance of debt securities and bank borrowings.

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	Year Ended December 31,
	2008		2009		2010		2008 to 2009					2009 to 2010
	(In billions of Won, except percentages)
Net Cash Flow from Operating Activities	W	3,293.0	W	2,932.6	W	4,021.0	W	(360.4	)	(10.9	)%	W	1,088.4		37.1	%
Net Cash Used in Investing Activities		(3,877.0	)	(1,826.0	)	(2,358.7	)	2,051.0		(52.9	)		(532.7	)	29.2
Net Cash Provided by (Used in) Financing Activities		866.8		(1,207.0	)	(1,818.3	)	(2,073.8	)	N/A			(611.3	)	50.6
Effect of Exchange Rate Changes on Cash and Cash Equivalents
Held in Foreign Currencies		37.4		(7.4	)	(5.2	)	(44.8	)	N/A			2.2		(29.7	)
Net Increase (Decrease) in Cash and Cash Equivalents due to
Changes in Consolidated Subsidiaries		36.4		46.2		(18.2	)	9.9		27.2			(64.4	)	N/A
Preacquisition Cash Flows of Subsidiaries		17.3		—		(23.4	)	(17.3	)	N/A			(23.4	)	N/A
Cash Flows from Discontinued Operation(1)		(248.4	)	4.0		27.4		252.4		N/A			23.4		585.0
Net Increase (Decrease) in Cash and Cash Equivalents		125.5		(57.6	)	(175.4	)	(183.0	)	N/A			(117.8	)	205.0
Cash and Cash Equivalents at Beginning of Period		886.0		1,011.5		953.9		125.5		14.2			(57.6	)	(5.7	)
Cash and Cash Equivalents at End of Period		1,011.5		953.9		778.5		(57.6	)	(5.7	)%		(175.4	)	(18.4	)%

N/A = Not applicable.

(1) Relates to cash flow activities of HELIO sold in August 2008, the Spicus division sold in August 2009, Etoos Co., Ltd. sold in October 2009, iHQ, Inc. sold in April and July 2010 and SK-KTB Music Investment Fund liquidated in October 2010, which have been classified as discontinued operations after such sale or liquidation.

Net Cash Flow from Operating Activities. Net cash flow provided by operations was Won 3,293.0 billion in 2008, Won 2,932.6 billion in 2009 and Won 4,021.0 billion in 2010. Net income was Won 972.3 billion in 2008, Won 1,055.6 billion in 2009 and Won 1,297.2 billion in 2010.

Net Cash from Investing Activities. Net cash used in investing activities was Won 3,877.0 billion in 2008, Won 1,826.0 billion in 2009 and Won 2,358.7 billion in 2010. Cash inflows from investing activities were Won 919.5 billion in 2008, Won 2,632.9 billion in 2009 and Won 1,420.9 billion in 2010. The primary contributor to such inflows, in 2008, largely related to a decrease in long-term investment securities of Won 382.7 billion and the collection of short-term loans of Won 212.9 billion and, in 2009, largely related to proceeds from sales of long-term investment securities of Won 1,966.9 billion, mostly relating to our sale of China Unicom and SK C&C shares. Cash inflows in 2010 largely related to proceeds from sales of long-term investment securities of Won 713.9 billion, mostly relating to the sale of our investments in bond funds. Cash outflows from investing activities were Won 4,796.4 billion in 2008, Won 4,458.9 billion in 2009 and Won 3,779.6 billion in 2010. The primary contributors to the overall cash outflows for investing activities were expenditures related to the acquisition of property and equipment, which were Won 2,236.4 billion in 2008, Won 2,162.3 billion in 2009 and Won 2,144.7 billion in 2010, all primarily relating to expenditures in connection with the maintenance and build-out of our wireless network, including upgrades to and expansion of our WCDMA network, as well as initial build-out and expansion of our WiBro network; increases in equity of consolidated subsidiaries of Won 1,093.1 billion in 2008 (which was primarily due to our acquisition of shares of SK Broadband in March 2008); acquisition of the leased line business of SK Networks for Won 894.8 billion in 2009; acquisitions of equity securities accounted for using the equity method, which were Won 595.3 billion in 2008 (which was primarily due to our investment in SKY Property Management Ltd. of Won 283.4 billion and investment in SK Marketing & Company Co. Ltd. of Won 190.0 billion), Won 107.4 billion in 2009 and Won 693.9 billion in 2010 (which was primarily due to our investment in Hana SK Card and Packet One Network); and acquisitions of long-term investment securities, which were Won 28.9 billion in 2008, Won 539.0 billion in 2009 and Won 146.9 billion in 2010.

Net Cash from Financing Activities. Net cash used in financing activities was Won 1,207.0 billion in 2009 and Won 1,818.3 billion in 2010. Net cash provided by financing activities was Won 866.8 billion in 2008. Cash inflows from financing activities were primarily driven by issuances of bonds, which provided cash of

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Won 1,307.7 billion in 2008, Won 1,114.9 billion in 2009 and Won 148.3 billion in 2010. Proceeds from long-term borrowings of Won 510.6 billion in 2008, Won 9.9 billion in 2009 and Won 108.0 billion in 2010 and proceeds from short-term borrowings of Won 469.0 billion in 2008, Won 348.5 billion in 2009 and Won 289.2 billion in 2010 also contributed to cash inflows from financing activities. Cash outflows for financing activities included payment of dividends, repayments of current portion of long-term debt, repayment of long-term borrowings, repayment of bonds payable, acquisition and retirement of treasury stock and repayment of short term borrowings, among other items. Payment of dividends were Won 682.5 billion in 2008, Won 681.5 billion in 2009 and Won 680.0 billion in 2010. Repayments of current portion of long-term debt were Won 558.1 billion in 2008, Won 851.1 billion in 2009 and Won 579.3 billion in 2010. Repayment of long-term borrowings were Won 193.4 billion in 2008, Won 111.6 billion in 2009 and Won 235.3 billion in 2010. Repayment of bonds payable were Won 60.2 billion in 2009 and Won 365.1 billion in 2010. The acquisition and retirement of treasury shares also accounted for Won 62.1 billion, Won 28.9 billion and Won 210.4 billion of cash outflows for financing activities in 2008, 2009 and 2010, respectively. Repayment of short-term borrowings also accounted for Won 1,007.6 billion in 2009 and Won 324.3 billion in 2010.

As of December 31, 2008, we had total long-term debt (excluding current portion and subscription deposits) outstanding of Won 4,930.9 billion, which included bonds in the amount of Won 4,074.4 billion and bank and institutional borrowings in the amount of Won 856.5 billion. The increase in our long-term debt in 2008 was primarily due to the inclusion of SK Broadband’s long-term debt (which amounted to Won 1,066.5 billion as of December 31, 2008), as well as our incurrence of long-term debt to finance the acquisition of shares of SK Broadband and our subscribers’ handset purchases on installment payment plans. As of December 31, 2009, we had total long-term debt (excluding current portion and subscription deposits) outstanding of Won 5,125.0 billion, which included bonds in the amount of Won 4,280.4 billion and bank and institutional borrowings in the amount of Won 844.6 billion. As of December 31, 2010, we had total long-term debt (excluding current portion and subscription deposits) outstanding of Won 3,802.0 billion, which included bonds in the amount of Won 3,566.0 billion and bank and institutional borrowings in the amount of Won 236.0 billion. The decrease in our long- term debt in 2010 was primarily due to a significant portion of our long-term debt being classified as current portion as of December 31, 2010. For a description of our long-term liabilities, see notes 9, 10, 11 and 22 of the notes to our consolidated financial statements.

As of December 31, 2010, substantially all of our foreign currency-denominated long-term borrowings, which amounted to approximately 43.2% of our total outstanding long-term debt, including current portion as of such date, was denominated in Dollars. Appreciation of the Won against the Dollar will result in net foreign exchange and translation gains, while depreciation of the Won against the Dollar will result in net foreign exchange and translation losses. Changes in foreign currency exchange rates will also affect our liquidity because of the effect of such changes on the amount of funds required for us to make interest and principal payments on our foreign currency-denominated debt.

On April 7, 2009, we issued convertible notes in the principal amount of US$332,528,000 with a maturity of five years and an annual interest rate of 1.75%. The aggregate net proceeds from the offering was US$326,397,463. We are required to redeem the convertible notes held by the holders thereof who exercise their put option, at their principal amount on the date of the third anniversary from the issuance date. After the third anniversary of the issuance date, we may redeem the convertible notes at our option if the price of the shares of our common stock during a pre-determined period (translated into Dollars at the then prevailing exchange rate) exceeds the conversion price (translated into Dollars at the exchange rate of Won 1,383.40 to US$1.00) by 30%. As of June 1, 2011, the conversion price was Won 211,271 per share of our common stock at the exchange rate of Won 1,383.40 to US$1.00. If the conversion of convertible notes into shares would exceed the 49% limit on aggregate foreign ownership of our shares, we intend to make cash payments to the holders of the convertible notes in lieu of the shares of our common stock. See “Item 4.B. Business Overview — Law and Regulation — Foreign Ownership and Investment Restrictions and Requirements” for a more detailed discussion of foreign share ownership restrictions. As of June 1, 2011, a total of 2,177,389 shares would be issued upon the exercise of the conversion rights by all of the holders of the convertible notes.

In June 2006, we issued floating rate discounted bills in the aggregate principal amount of Won 200 billion. The discounted bills have a five-year maturity and an interest rate based on a 91-day certificate of deposit yield plus

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0.25%. In September and November 2006, we issued Won-denominated corporate bonds, in each case, in an aggregate principal amount of Won 200 billion. These bonds will mature in September 2016 and November 2013, respectively, and have annual interest rates of 5.0% and 4.0%, respectively. In October 2006, we also made long-term borrowings in aggregate principal amount of US$100 million with a maturity of seven years and an annual interest rate based on six-month LIBOR plus 0.29%.

In July 2007, we issued U.S. dollar-denominated bonds in the principal amount of US$400,000,000 with a maturity of twenty years and an annual interest rate of 6.625%. In November 2007, we issued Japanese Yen-denominated notes in the principal amount of Japanese Yen 12,500,000,000 with a maturity of five years and an annual interest rate based on Yen LIBOR plus 0.55%. In November 2007, we issued Korean Won-denominated bonds in the principal amount of Won 200 billion with a maturity of seven years and an annual interest rate of 5.00%.

In March 2008, we issued two tranches of Korean Won-denominated bonds, each tranche in the principal amount of Won 200 billion with an annual interest rate of 5.00%, maturing in seven and ten years, respectively. In October 2008, we issued Korean Won-denominated bonds in the principal amount of Won 250 billion with a maturity of five years and an annual interest rate of 6.92% and Korean Won-denominated bonds in the principal amount of Won 50 billion with a maturity of two years and an annual interest rate of 6.77%. In November 2008, we issued U.S. dollar-denominated notes in the principal amount of US$150,000,000 with a maturity of two years and an annual interest rate based on three-month U.S. dollar LIBOR plus 3.05%.

In January 2009, we issued notes in the principal amounts of Won 40 billion and Yen 3 billion with maturities of four and three years, respectively, and annual interest rates of 5.54% and 3-month Euro Yen LIBOR plus 2.50%, respectively. In March 2009, we issued notes in the principal amounts of Won 230 billion and Yen 5 billion with maturities of seven and three years, respectively, and annual interest rates of 5.92% and 3-month Euro Yen TIBOR plus 2.50%, respectively. In April 2009, we issued floating rate notes in the principal amounts of US$220,000,000 with a maturity of three years and an annual interest rate based on LIBOR plus 3.15%. In May 2009, SK Broadband, our consolidated subsidiary, filed a securities registration statement in Korea in order to raise up to Won 300 billion by selling its common shares through a rights offering. We participated in the rights offering in proportion to our 43.4% equity interest in SK Broadband and purchased 47,187,105 shares of SK Broadband’s common stock at Won 5,000 per share. As a result, our equity stake in SK Broadband has increased from 43.4% to 50.6%.

In February 2011, SK Telink, our consolidated subsidiary, issued Korean Won-denominated bonds in the principal amount of Won 50 billion with a maturity of three years and an annual interest rate of 4.86%. In April 2011, SK Broadband, our consolidated subsidiary, issued Korean Won-denominated bonds in the principal amount of Won 290 billion with a maturity of three years and an annual interest rate of 4.53%.

We also have long-term liabilities in respect of subscription deposits received from subscribers, which stood at Won 4.8 billion at December 31, 2008, Won 5.5 billion at December 31, 2009 and Won 5.2 billion at December 31, 2010. These non-interest bearing deposits were collected from some subscribers when they initiated service and are returned (less unpaid amounts due from the subscriber for our services) when the subscriber’s service is deactivated. We generally no longer collect these deposits from our subscribers. See “Item 4.B. Business Overview — Revenues, Rates and Subscription Deposits”.

Substantially all of our revenue and operating expenses are denominated in Won. We generally pay for imported capital equipment in Dollars. For a description of swap or derivative transactions we have entered into, see “Item 11. Quantitative and Qualitative Disclosures about Market Risk”.

Capital Requirements

Historically, capital expenditures, repayment of outstanding debt and research and development expenditures have represented our most significant use of funds. In recent years, we have also increasingly dedicated capital resources to develop new and growing business areas, including our broadband Internet and fixed-line telephone business, wireless Internet business, convergence businesses and overseas operations, including through acquisitions and strategic alliances. In addition, we have used funds for the acquisition of treasury shares, financing of our subscribers’ handset purchases on installment payment plans and payment of retirement and severance benefits.

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To fund our scheduled debt repayment and planned capital expenditures over the next several years, we intend to rely primarily on funds provided by operations, as well as bank and institutional borrowings, and offerings of debt or equity in the domestic or international markets. We believe that these sources will be sufficient to fund our planned capital expenditures for 2011. Our ability to rely on these alternatives could be affected by the liquidity of the Korean financial markets or by Government policies regarding Won and foreign currency borrowings and the issuance of equity and debt. Our failure to make needed expenditures would adversely affect our ability to sustain subscriber growth and provide quality services and, consequently, our results of operations.

Capital Expenditures. The following table sets forth our actual capital expenditures for 2008, 2009 and 2010:

	Year Ended December 31, — 2008		2009		2010
	(In billions of Won)
CDMA Network(1)	W	148	W	274	W	465
WCDMA Network		905		939		800
WiBro(2)		405		147		125
Others(3)		779		802		927
Total(4)	W	2,237	W	2,162	W	2,317

(1)	Includes our basic CDMA and CDMA EV-DO networks.
(2)	We commenced WiBro service in May 2006.
(3)	Includes investments in infrastructure consisting of equipment
necessary for the provision of data services and marketing.
(4)	Also, see note 7 of the notes to our consolidated financial
statements.

We set our capital expenditure budget for an upcoming year on an annual basis. Our actual capital expenditures in 2008 were Won 2,236.9 billion. Of such amount, we spent approximately Won 904.8 billion on capital expenditures related to upgrade and expansion of our WCDMA network, Won 404.8 billion related to development and expansion of our WiBro network, Won 148.2 billion related to general upkeep of our CDMA network and Won 779.1 billion on other capital expenditures and projects. Our actual capital expenditures in 2009 were Won 2,162.4 billion. Of such amount, we spent approximately Won 939.3 billion on capital expenditures related to upgrade and expansion of our WCDMA network, Won 146.8 billion related to development and expansion of our WiBro network, Won 273.5 billion related to general upkeep of our CDMA network and Won 802.8 billion on other capital expenditures and projects. Our actual capital expenditures in 2010 were Won 2,316.5 billion. Of such amount, we spent approximately Won 800.0 billion on capital expenditures related to upgrade and expansion of our WCDMA network, Won 124.9 billion related to development and expansion of our WiBro network, Won 465.0 billion related to general upkeep of our CDMA network and Won 926.6 billion on other capital expenditures and projects.

We paid Won 650 billion of the Won 1.3 trillion as the cost of the IMT-2000 license in March 2001 and are required to pay the remainder of the license cost in annual installments for a five-year period from 2007 through 2011. In addition, we are required to pay the cost of our additional WCDMA license that we acquired in May 2010 in annual installments of Won 17.7 billion each year from 2012 through 2014. For more information, see note 8 of the notes to our consolidated financial statements for the years ended December 31, 2008, 2009 and 2010.

In March 2005, we obtained a license from the Government to provide WiBro services and paid the related Won 117.0 billion WiBro license fee. We currently provide WiBro service to “hot zone” areas in 84 cities. We are planning to make additional capital expenditures in 2011 to build and expand our WiBro network to more extensive hot zone areas in the 84 cities, and we may also make further capital investments to expand our WiBro service in the future. Our investment plans are subject to change depending on the market demand for WiBro services, the competitive landscape for similar services and development of competing technologies.

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In addition, we are currently making capital expenditures to build more advanced networks based on long term evolution, or LTE, technology, with a goal of commencing commercial LTE services by July 2011. We may continue to make further capital investments to develop and expand LTE services in the future.

We expect that our capital expenditure amount in 2011 will be similar to that of 2010. Our expenditures will be for a range of projects, including investments in our backbone networks, investments to improve our WCDMA network-based products and services, investments to build our LTE network, investments in our wireless Internet-related and convergence businesses and funding for mid-to long-term research and development projects, as well as other initiatives, primarily related to our ongoing businesses and in the ordinary course. However, our overall expenditure levels and our allocation among projects remain subject to many uncertainties. We may increase, reduce or suspend our planned capital expenditures for 2011 or change the timing and area of our capital expenditure spending from the estimates described above in response to market conditions or for other reasons. We may also make additional capital expenditure investments as opportunities arise. Accordingly, we periodically review the amount of our capital expenditures and may make adjustments based on the current progress of capital expenditure projects and market conditions. No assurance can be given that we will be able to meet any such increased expenditure requirements or obtain adequate financing for such requirements, on terms acceptable to us, or at all.

Repayment of Outstanding Debt. As of December 31, 2010, our principal repayment obligations with respect to long-term borrowings, bonds and obligations under capital leases outstanding were as follows for the periods indicated:

Year Ending December 31,	Total
	(In billions of Won)
2011	W	1,434.5
2012		1,179.7
2013		749.3
After 2013		2,071.4

We note that no commercial bank in Korea may extend credit (including loans, guarantees and purchase of bonds) in excess of 20% of its shareholders’ equity to any one borrower. In addition, no commercial bank in Korea may extend credit exceeding 25% of the bank’s shareholders’ equity to any one borrower and to any person with whom the borrower shares a credit risk.

Investments in New Businesses and Global Expansion and Other Needs. We may also require capital for investments to support our development of growing businesses areas, as well as the purchase of additional treasury shares and shares of our affiliates.

For example, in March 2008, we completed the acquisition of an additional 38.7% equity stake in SK Broadband, Korea’s second-largest fixed-line operator, for approximately Won 1.1 trillion, increasing our total equity interest in SK Broadband to 43.4%. In July 2009, we purchased additional shares of SK Broadband’s common stock, and as a result, our current equity stake increased to 50.6%. We may make additional capital investments in order to develop SK Broadband’s business in line with our growth strategy.

In September 2009, we also acquired a leased-line business and related ancillary businesses of SK Networks for the acquisition price of Won 892.8 billion. In connection with such acquisition, we also assumed liabilities of the businesses in the amount of Won 611.4 billion.

In February 2010, we purchased shares of Hana SK Card Co., Ltd. for a purchase price of Won 402 billion. As a result, we are a major shareholder of Hana SK Card Co., Ltd. with a 49% equity stake.

In July 2010, we acquired a 27.2% equity interest in Packet One Network, or P1, a Malaysian 4G WiMAX Telecommunications company and subsidiary of Green Packet Berhad, for US$101 million. In connection with P1’s plan to increase its capital, we announced in May 2011 our plan to make an additional investment of MYR50 million (approximately US$16.3 million) pro rata to our ownership interest. For a more detailed description of our investments in P1, see “Item 4. Information on the Company — Item 4.B. Business Overview — Global Business — Overseas Operations”.

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From time to time, we may make other investments in telecommunications or other businesses, in Korea or abroad, where we perceive attractive opportunities for investment. From time to time, we may also dispose of existing investments when we believe that doing so would be in our best interest.

Acquisition of Treasury Shares. In October 2001, in accordance with the approval of our board of directors, we established trust funds with four Korean banks with a total funding of Won 1.3 trillion for the purpose of acquiring our shares at market prices plus or minus five percent. Each of the trust funds has an initial term of three years but is terminable at our option six months after the establishment of the trust fund and at the end of each succeeding six-month period thereafter. While held by the trust funds, our shares are not entitled to voting rights or dividends. In October 2004, we extended the terms of the trust funds (then with a balance of Won 982 billion) for another three years, and, in October 2007, we extended the terms of the trust funds (then with a balance of Won 982 billion) for an additional three years. In October 2010, upon expiration of the terms of the trust funds, our shares held by the trust funds were transferred to us and are currently held by us as treasury shares.

In a series of open market purchases in the period between December 2, 2008 and December 30, 2008, we acquired 306,988 shares of our common stock at an aggregate purchase price of Won 63.5 billion. In January 2009, we acquired 141,016 shares of our common stock at an aggregate purchase price of Won 28.9 billion. In a series of open market purchases in the period between July 26, 2010 and October 20, 2010, we acquired 1,250,000 shares of our common stock at an aggregate purchase price of Won 210.4 billion. As of December 31, 2010, the total number of our common stock outstanding was 71,094,999.

Financing of Installment Payment Plans. Since April 2008, we have been offering installment payment plans for new handset purchases by our new or existing subscribers. Under installment payment plans, we provide financing to our new or existing subscribers who wish to purchase new handsets on credit and, in certain cases, charge fees or interest. As of December 31, 2010, short-term and long-term accounts receivable (other), each net of allowance for doubtful accounts and present value discount, amounted to Won 2,534.3 billion and Won 527.1 billion, respectively, compared to Won 2,075.9 billion and Won 761.7 billion, respectively, as of December 31, 2009, and Won 1,346.1 billion and Won 572.1 billion, respectively, as of December 31, 2008. These increases were primarily attributable to the increase in purchases of new handsets on installment payment plans, which has required, and may continue to require, our capital resources. Since September 2010, Hana SK Card, which is 51% owned by Hana Financial Group and 49% owned by us, has taken over this financing from us, reducing the amount of our capital resources required to finance these installment payment plans.

Severance Payments. The total accrued and unpaid retirement and severance benefits for our employees as of December 31, 2010 of Won 62.9 billion was reflected in our consolidated financial statements as a liability, which is net of deposits with insurance companies totaling Won 96.3 billion to fund a portion of the employees’ severance indemnities.

Also see “Item 6.D. Employees — Employee Stock Ownership Association and Other Benefits” and note 2(q) of the notes to our consolidated financial statements.

Dividends. Total payments of cash dividends amounted to Won 682.5 billion in 2008, Won 681.5 billion in 2009 and Won 680.0 billion in 2010.

In March 2011, we distributed annual dividends at Won 8,400 per share to our shareholders for an aggregate payout amount of Won 597.2 billion.

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Contractual Obligations and Commitments

The following summarizes our contractual cash obligations at December 31, 2010, and the effect such obligations are expected to have on liquidity and cash flow in future periods:

	Payments Due by Period(1)
			Less
			Than						After
	Total		1 Year		1-3 Years		4-5 Years		5 Years
	(In billions of Won)
Bonds
Principal	W	4,580.9	W	876.7	W	1,741.0	W	837.7	W	1,125.5
Interest		976.9		194.8		247.6		154.0		380.5
Long-term borrowings
Principal		748.3		512.4		143.2		70.2		22.5
Interest		41.5		19.7		13.5		7.1		1.2
Capital lease obligations
Principal		105.5		45.5		44.7		15.3		—
Interest		8.5		4.6		3.5		0.4		—
Operating leases		12.9		6.5		6.4		—		—
Facility deposits		10.3		5.1		—		—		5.2
Derivatives		30.2		15.4		14.8		—		—
Other long-term payables(2)
Principal		223.1		170.0		35.4		17.7		—
Interest		18.5		12.2		5.7		0.6		—
Short-term borrowings		529.6		529.6		—		—		—
Total contractual cash obligations	W	7,286.2	W	2,392.5	W	2,255.8	W	1,103.0	W	1,534.9

| (1) | We are contractually obligated to make severance payments to
eligible employees we have employed for more than one year, upon
termination of their employment, regardless of whether such
termination is voluntary or involuntary. Accruals for severance
indemnities are recorded based on the amount we would be
required to pay in the event the employment of all our employees
were to terminate at the balance date. However, we have not yet
estimated cash flows for future periods. Accordingly, payments
due in connection with severance indemnities have been excluded
from this table. |
| --- | --- |
| (2) | Related to acquisition of IMT-2000 and WCDMA licenses. See
note 8 of the notes to our consolidated financial
statements. |

See note 22 of the notes to our consolidated financial statements for details related to our other commitments and contingencies.

U.S. GAAP Reconciliation

Our consolidated financial statements are prepared in accordance with Korean GAAP, which differs in certain significant respects from U.S. GAAP. For a discussion of significant differences between Korean GAAP and U.S. GAAP, see notes 32 and 33 of our notes to consolidated financial statements.

Our net income in 2008 under U.S. GAAP is lower than net income under Korean GAAP by Won 20.6 billion, primarily due to the differing treatment of valuation of currency and interest rate swaps and loss on impairment of goodwill under U.S. GAAP, partially offset by differing treatment in loss on impairment of investment securities, the reversal of goodwill amortization, scope of consolidation and reclassification of our investment in the common stock of SK C&C under U.S. GAAP. Our net income in 2009 under U.S. GAAP is higher than net income under Korean GAAP by Won 301.1 billion, primarily due to the differing treatment of unrealized gains or losses on the valuation of convertible bonds payable, the reversal of goodwill amortization and valuation of currency and interest rate swap, partially offset by remeasuring our previously held equity interest in SK Broadband at its acquisition-date

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fair value and reclassification of our investment in the common stock of SK C&C under U.S. GAAP. Our net income in 2010 under U.S. GAAP is higher than net income under Korean GAAP by Won 99.4 billion, primarily due to the reversal of goodwill amortization, partially offset by differing treatment of valuation of currency and interest rate swaps.

Our shareholders’ equity as of December 31, 2008, 2009 and 2010 under U.S. GAAP is higher than under Korean GAAP by Won 737.6 billion, Won 1,916.1 billion and Won 2,094.1 billion, respectively, in each case, primarily due to increases from reversal of goodwill amortization, the differing treatment of additional equity investment in subsidiaries and tax effect of the reconciling items, partially offset by decreases from the differing treatment of nonrefundable activation fees for wireless service, goodwill impairment and scope of consolidation.

New Accounting Pronouncements under U.S. GAAP

In October 2009, guidance on Multiple-Deliverable Revenue Arrangements, which addresses how revenues should be allocated among all products and services included in our bundled sales arrangements, was newly issued. It establishes a selling price hierarchy for determining the selling price of each product or service, with vendor-specific objective evidence at the highest level, third-party evidence at the intermediate level, and a best estimate at the lowest level. It eliminates the residual method as an acceptable allocation method, and requires the use of the relative selling price method as the basis for allocation. It also significantly expands the disclosure requirements for such arrangements, including, potentially, certain qualitative disclosures. The requirements effective for the beginning of January 1, 2011 are not expected to have a material effect on our consolidated financial statements.

In January 2010, accounting guidance on Fair Value Measurements and Disclosures — Improving Disclosures about Fair Value Measurements, which required new disclosures and explanations for transfers of financial assets and liabilities between levels in the fair value hierarchy was revised. The new guidance clarifies that fair value measurement disclosures are required for each class of financial asset and liability, which may be a subset of a caption in the consolidated balance sheets, and those disclosures should include a discussion of inputs and valuation techniques. For financial assets and liabilities subject to lowest-level measurements (Level 3), the guidance further requires that we separately present purchases, sales, issuances, and settlements instead of netting these changes. The requirements effective for the beginning of January 1, 2010 did not have a material impact on our consolidated financial statements, and the portions of the guidance which are effective January 1, 2011 are not expected to have a material effect on our consolidated financial statements.

In July 2010, the accounting guidance for Disclosures about the Credit Quality of Financing Receivables and the Allowance for Credit Losses were revised. As a result of these amendments, an entity is required to disaggregate by portfolio segment or class certain existing disclosures and provide certain new disclosures about its financing receivables and related allowance for credit losses. The new disclosures as of the end of the reporting period are effective for the fiscal year ended December 31, 2010, while the disclosures about activity that occurs during a reporting period are effective for the first fiscal quarter of 2011. The disclosure requirements effective for the fiscal year ended December 31, 2010 did not have a material effect on our consolidated financial statements. The requirements effective for the first fiscal quarter of 2011 are not expected to have a material effect on our consolidated financial statements.

Significant Changes in Korean GAAP

The amended SKAS No. 25, “Consolidated Financial Statements”, which is effective December 29, 2008 (but the early adoption is allowed from 2008), clarifies that when the parent’s ownership interest in a subsidiary is increased after control is obtained, the difference between the consideration for additional acquisition of interest and portion of net asset of subsidiary, which had been previously recognized as capital surplus, should be recognized as other capital adjustment if the difference is negative amount and there is no related capital surplus earned at previous transaction. The amended SKAS No. 25, “Consolidated Financial Statements” was applied retroactively during the year ended December 31, 2008.

Transition to IFRS Starting in 2011

In March 2007, the Government announced that all companies listed on the Korea Exchange, including us, will be required to comply with the International Financial Reporting Standards (“IFRS”) adopted for use in Korea

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starting January 1, 2011, with a transition date of January 1, 2010. In addition, for our SEC filing requirements we are required to comply with IFRS as issued by the International Accounting Standard Board (“IASB”). Starting in the first quarter of 2011, we currently prepare and report our financial statements under IFRS as adopted for use in Korea and publish such financial statements on the website of the Financial Supervisory Service of Korea as required under the applicable regulations and listing rules of the Korea Exchange. For our continued SEC reporting obligations, we will prepare and report our financial statements under IFRS as adopted for use in Korea and IFRS as issued by the IASB.

Critical Accounting Policies, Estimates And Judgments

Our consolidated financial statements are prepared in accordance with Korean GAAP. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses as well as the disclosure of contingent assets and liabilities. We continually evaluate our estimates and judgments including those related to revenue recognition, allowances for doubtful accounts, inventories, useful lives of property and equipment, intangible assets, investments, employee stock option compensation plans and income taxes. We base our estimates and judgments on historical experience and other factors that are believed to be reasonable under the circumstances. Actual results may differ from these estimates under different assumptions or conditions. We believe that of our significant accounting policies, the following may involve a higher degree of judgment or complexity:

Allowances for Doubtful Accounts

An allowance for doubtful accounts is provided based on a review of the status of individual receivable accounts at the end of the year. We maintain allowances for doubtful accounts for estimated losses that result from the inability of our customers to make required payments. We base our allowances on the likelihood of recoverability of accounts receivable based on past experience and taking into account current collection trends that are expected to continue. If economic or specific industry trends worsen beyond our estimates, we increase our allowances for doubtful accounts by recording additional expenses.

Derivative Instruments

We record rights and obligations arising from derivative instruments as assets and liabilities, which are stated at fair value. The gains and losses that result from the change in the fair value of derivative instruments are reported in current earnings. However, for derivative instruments designated as hedging the exposure of variable cash flows, the effective portions of the gains or losses on the hedging instruments are recorded as accumulated other comprehensive income (loss) and credited or charged to operations at the time the hedged transactions affect earnings, and the ineffective portions of the gains or losses are credited or charged immediately to operations.

Estimated Useful Lives

We estimate the useful lives of long-lived assets in order to determine the amount of depreciation and amortization expense to be recorded during any reporting period. The useful lives are estimated at the time the asset is acquired and are based on historical experience with similar assets as well as taking into account anticipated technological or other changes. If technological changes were to occur more rapidly than anticipated or in a different form than anticipated, the useful lives assigned to these assets may need to be shortened, resulting in the recognition of increased depreciation and amortization expense in future periods.

Impairment of Long-lived Assets Including the WCDMA Frequency Usage Right

Long-lived assets generally consist of property, plant and equipment and intangible assets. We review long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. In addition, we evaluate our long-lived assets for impairment each year as part of our annual forecasting process. An impairment loss would be considered when estimated undiscounted future net cash flow expected to result from the use of the asset and its eventual disposition are less than its carrying amount. If such assets are considered to be impaired, the impairment to be recognized is measured as the amount by which the carrying amount of the assets exceeds the fair value of the assets.

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Our intangible assets include the WCDMA frequency usage right, which has a contractual life of 15 years and is amortized from the date commercial service is initiated through the end of its contractual life, which is December 15, 2015. We started to amortize this frequency usage right on December 29, 2003. Because WCDMA presents risks and challenges to our business, any or all of which, if realized or not properly addressed, may have a material adverse effect on our financial condition, results of operations and cash flows, we review the WCDMA frequency usage right for impairment on an annual basis. In connection with our review, we utilize the estimated long-term revenue and cash flow forecasts. The use of different assumptions within our cash flow model could result in different amounts for the WCDMA frequency usage right. The results of our review using the testing method described above did not indicate any need to impair the WCDMA frequency usage right for 2010.

Provision for Point Program and Handset Subsidy

For its marketing purposes, we grant Rainbow Points and Point Box Points to our subscribers based on their usage of our services. Points are provided based on the historical usage experience and our marketing policy. Such provision is recorded as accrued expenses or other non-current liabilities in accordance with the expected points usage duration from the end of the reporting period. Points expire after 5 years and all unused points are expired on their fifth anniversary.

We provide handset subsidies to the subscribers who purchase handsets on an installment basis. Such provision was recorded as accrued expenses or other non-current liabilities in accordance with the expected points when the subsidies are paid.

Impairment of Investment Securities

When the declines in fair value of individual available-for-sale and held-to-maturity securities below their acquisition cost are other than temporary and there is objective evidence of impairment, the carrying value of the securities is adjusted to their fair value with the resulting valuation loss charged to current operations.

As part of this review, the investee’s operating results, net asset value and future performance forecasts as well as general market conditions are taken into consideration. If we believe, based on this review, that the market value of an equity security or a debt security may realistically be expected to recover, the loss will continue to be classified as temporary. If economies or specific industry trends worsen beyond our estimates, valuation losses previously determined to be recoverable may need to be charged as an impairment loss in current operations.

Significant management judgment is involved in the evaluation of declines in value of individual investments. The estimates and assumptions used by management to evaluate declines in value can be impacted by many factors, such as our financial condition, earnings capacity and near-term prospects in which we have invested and, for publicly-traded securities, the length of time and the extent to which fair value has been less than cost. The evaluation of these investments is also subject to the overall condition of the economy and its impact on the capital markets.

Income Taxes

We are required to estimate the amount of tax payable or refundable for the current year and the deferred income tax liabilities and assets for the future tax consequences of events that have been reflected in our financial statements or tax returns. This process requires management to make assessments regarding the timing and probability of the tax impact. Actual income taxes could vary from these estimates due to future changes in income tax law or unpredicted results from the final determination of each year’s liability by taxing authorities.

We believe that the accounting estimate related to establishing tax valuation allowances is a “critical accounting estimate” because (i) it requires management to make assessments about the timing of future events, including the probability of expected future taxable income and available tax planning opportunities, and (ii) the impact that changes in actual performance versus these estimates could have on the realization of tax benefits as reported in our results of operations could be material. Management’s assumptions require significant judgment because actual performance has fluctuated in the past and may continue to do so.

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Item 5.C. Research and Development

Overview

We maintain a high level of spending on our internal research activity. We also donate funds to several Korean research institutes and educational organizations that focus on research and development activity. We believe that we must maintain a substantial in-house technology capability to achieve our strategic goals.

The following table sets forth our annual research and development expenses:

	As of and for the Year Ended December 31, — 2008		2009		2010
	(In billions of Won)
Internal R&D Expenses	W	226.7	W	236.3	W	270.4
External R&D Expenses		73.0		56.9		81.6
Total R&D Expenses	W	299.7	W	293.2	W	352.0

Our total research and development expenses were approximately 2.1% in 2008, 2.0% in 2009 and 2.3% in 2010, respectively, of operating revenue.

Our external research and development expenses have been influenced by the Ministry of Knowledge Economy, which makes annual recommendations concerning our minimum level of contribution to the Government-run Fund for Development of Information and Telecommunications. The minimum level of contribution recommended by the Ministry of Knowledge Economy was 0.75% for each of 2008, 2009 and 2010. We are not obligated to make donations to any other external research institutes.

Internal Research and Development

The main focus of our internal research and development activity is the development of new wireless technologies and services and value-added technologies and services for our CDMA-based, WCDMA-based, LTE-based and WiBro networks, such as wireless data communications, as well as development of new technologies that reflect the growing convergence between telecommunications and other industries. We spent approximately Won 270.4 billion on internal research and development in 2010.

Our internal research and development activity is centered at a research center with state-of-the-art facilities and equipment established in January 1999 in Bundang-gu, Sungnam-si, Kyunggi-do, Korea. To more efficiently manage our research and development resources, our research and development center is organized into four core areas:

| • | The network technology R&D center, which has
pioneered the development of 3G and 3.5G technologies. This
center is developing next-generation network technologies, as
well as core network equipment and new services. Current
projects include the development of LTE technology and the next
generation transmission technology and the development of data
femtocell and hybrid access points to improve network coverage,
as well as location-based services and mobile voice blogging
service. |
| --- | --- |
| • | The platform technology R&D center, which is
responsible for developing open platform, media and convergence
technologies. Current projects include the development of
wireless personal area network technologies, such as ZigBee
technology and radio-frequency identification technology, as
well as 3D conversion and electronic paper technologies. |
| • | The service technology R&D center, which focuses on
improving the quality and operation of our core networks;
building a flexible service infrastructure that will support the
introduction of new products and services and enable easy
maintenance; and developing new services based on customer
needs. Specifically, this center has been developing an array of
value-added services, including T Store, T-Map and T-Smart
Wallet services and related mobile applications. |
| • | The corporate R&D center, which is responsible for
developing industry productivity enhancement solutions and other business-to-business services and other new technologies. Current projects include |

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the development of intelligent video security system, bio-informatics technology and bilateral encoded telecommunication technology.

Each business unit also has its own research team that can concentrate on specific short-term research needs. Such research teams permit our research center to concentrate on long-term, technology-intensive research projects. We aim to establish strategic alliances with selected domestic and foreign companies with a view to exchanging or jointly developing technologies, products and services.

External Research and Development

In addition to conducting research in our own facilities, we have been a major financial supporter of other Korean research institutes, and we have helped coordinate the Government’s effort to commercialize CDMA-based, WCDMA-based and WiBro technology. We do not independently own intellectual property rights in the technologies or products developed by any external research institute.

Item 5.D. Trend Information

These matters are discussed under Item 5.A. and Item 5.B. above where relevant.

Item 5.E. Off-Balance Sheet Arrangements

None.

Item 5.F. Tabular Disclosure of Contractual Obligations

These matters are discussed under Item 5.B. above where relevant.

Item 5.G. Safe Harbor

These matters are discussed under “Forward-Looking Statements.”

ITEM 6. DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES

Item 6.A. Directors and Senior Management

Our board of directors has ultimate responsibility for the management of our affairs. Under our articles of incorporation, our board is to consist of at least three but no more than twelve directors, more than half of whom must be independent non-executive directors. We currently have a total of eight directors, five of whom are independent non-executive directors. We elect our directors at a general meeting of shareholders with the approval of at least a majority of those shares present or represented at such meeting. Such majority must represent at least one-fourth of our total issued and outstanding shares with voting rights.

As required under relevant Korean laws and our articles of incorporation, we have a committee for recommendation of independent non-executive directors within the board of directors, the Independent Director Nomination Committee. Independent non-executive directors are appointed from among those candidates recommended by the Independent Director Nomination Committee.

The term of offices for directors is until the close of the third annual general shareholders meeting convened after he or she commences his or her term. Our directors may serve consecutive terms. Our shareholders may remove them from office by a resolution at a general meeting of shareholders adopted by the holders of at least two-thirds of the voting shares present or represented at the meeting, and such affirmative votes also represent at least one-third of our total voting shares then issued and outstanding.

Representative directors are directors elected by the board of directors with the statutory power to represent our company.

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The following are the names and positions of our standing and non-standing directors. The business address of all of our directors is the address of our registered office at SK T-Tower, 11, Euljiro 2-ga, Jung-gu, Seoul 100-999, Korea.

Standing directors are our full-time employees and executive officers, and they also comprise the senior management, or the key personnel who manage us. Their names, dates of birth and positions at our company and other positions are set forth below:

					Other
					Principal
	Date of	Director	Expiration		Directorships	Business
Name	Birth	Since	of Term	Position	and Positions	Experience
Sung Min Ha	Mar. 24, 1957	2011	2014	President, Co-Chief Executive Officer & Representative
Director	—	Head of Mobile Network Operator Business, SK Telecom; CFO &
Head of Strategic Planning Office, SK Telecom
Jin Woo So	Dec. 20, 1961	2011	2014	Co-Chief Executive Officer & Representative Director; Head
of Platform Business	—	Head of Convergence & Internet Business, SK Telecom; Head
of Global Business, SK Telecom; CEO, SK Communications

Our current non-standing directors are as set forth below:

					Other
					Principal
	Date of	Director	Expiration		Directorships	Business
Name	Birth	Since	of Term	Position	and Positions	Experience
Jae Won Chey	May 16, 1963	2009	2012	Chairman of the Board of Directors	Chairman, SK Networks; Vice Chairman & CEO, SK Holdings;
Vice Chairman & CEO, SK Gas Vice Chairman & CEO, SK
E&S	Executive Vice President, Head of Corporate Center, SK Telecom;
Executive Vice President, Head of Strategic Support Division, SK
Telecom
Hyun Chin Lim	Apr. 26, 1949	2009	2012	Independent Non-executive Director	Professor, College of Social Science, Seoul National University	President, Korea Sociological Association; Dean, College of
Social Science, Seoul National University; President, Korean
Association of NGO Studies
Dal Sup Shim	Jun. 27, 1950	2010	2013	Independent Non-executive Director	Senior Visiting Research Fellow, Institute for Global Economics	Auditor, Korea Technology Investment Corp.; Auditor, Korea
Credit Guarantee Fund; Financial Attaché, Korean Embassy in
the United States; Audit Officer, Korea Customs Service;
Director General for Customs & Tariff, Ministry of Finance
and Economy
Rak Young Uhm	Jun. 23, 1948	2011	2014	Independent Non-executive Director	Visiting Professor Chung-Ang University	Independent Non-executive Director, Tong Yang Insurance Co.,
Ltd., Non-Standing Director KOTRA; President, Korea Development
Bank; Vice Minister, Ministry of Finance and Economy
Jay Young Chung	Oct. 15, 1944	2011	2014	Independent Non-executive Director	Honorary Professor, Sung Kyun Kwan University	Chief, Asia-Pacific Economic Association; Vice President, Sung
Kyun Kwan University; Independent Non-executive Director, POSCO
Jae Ho Cho	Jan. 18, 1955	2011	2014	Independent Non-executive Director	Professor, College of Business Administration, Seoul National
University	Director, Kyung Hee Foundation; Chair, Sub-committee for Capital
Market Development, Financial Services Commission; Visiting
Professor, Graduate School of Economics, University of Tokyo

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Item 6.B. Compensation

The aggregate of the remuneration paid and in-kind benefits granted to the directors (both standing directors, who also serve as our executive officers, and non-standing directors) during the year ended December 31, 2010 totaled approximately Won 3.7 billion.

Remuneration for the directors is determined by shareholder resolution. Severance allowances for directors are determined by the board of directors in accordance with our regulation on severance allowances for officers, which was adopted by shareholder resolution. The regulation provides for monthly salary, performance bonus, severance payment and fringe benefits. The amount of performance bonuses is independently decided by a resolution of the board of directors.

In March 2002, pursuant to resolutions of the shareholders, and in accordance with our articles of incorporation, certain of our directors and officers were granted options to purchase our common shares, which have all expired without being exercised. Since 2003, none of our directors and officers have been granted options to purchase our common shares.

Item 6.C. Board Practices

For information regarding the expiration of each director’s term of appointment, as well as the period from which each director has served in such capacity, see the table set out under “Item 6.A. Directors and Senior Management”, above.

Termination of Directors, Services

Directors are given a retirement and severance payment upon termination of employment in accordance with our internal regulations on severance payments. Upon retirement, directors who have made significant contributions to our company during their term may be appointed to serve either as an advisor to us or as an officer of an affiliate company.

Audit Committee

Under relevant Korean laws and our articles of incorporation, we are required to have an audit committee under the board of directors. The committee is composed of at least three members, two-thirds of whom must be independent non-executive directors independent in accordance with applicable rules. The members of the audit committee are appointed annually by a resolution of the board of directors. They are required to:

•	examine the agenda for the general meeting of shareholders;
•	examine financial statements and other reports to be submitted
by the board of directors to the general meeting of shareholders;
•	review the administration by the board of directors of our
affairs; and
•	examine the operations and asset status of us and our
subsidiaries.

In addition, the audit committee must appoint independent auditors to examine our financial statements. An audit and review of our financial statements by independent auditors is required for the purposes of a securities report. Listed companies must provide such report on an annual, semi-annual and quarterly basis to the Financial Services Commission of Korea, or the FSC, and the KRX KOSPI Market.

Our audit committee is composed of four independent non-executive directors: Dal Sup Shim, Hyun Chin Lim, Jae Ho Cho and Jay Young Chung, each of whom is financially literate and independent under the rules of the New York Stock Exchange as applicable. The board of directors has determined that Jae Ho Cho is an “audit committee financial expert” as defined under the applicable rules of the SEC. See “Item 16A. Audit Committee Financial Expert”.

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Independent Director Nomination Committee

This committee is devoted to recommending independent non-executive directors for the board of directors. The objective of the committee is to help promote fairness and transparency in the nomination of candidates for these positions. The board of directors decides from time to time who will comprise the members of this committee. The committee is comprised of two executive directors and two independent directors.

Capex Review Committee

This committee is responsible for reviewing our business plan (including the budget). It also examines major capital expenditure revisions, and routinely monitors capital expenditure decisions that have already been executed. The committee is comprised of one executive officer and three independent directors.

Compensation Review Committee

This committee oversees our overall compensation scheme for top-level executives and directors. It is responsible for reviewing both the criteria for and level of compensation. It is comprised of all independent directors, Hyun Chin Lim, Dal Sup Shim, Rak Young Uhm, Jay Young Chung and Jae Ho Cho.

Corporate Citizenship Committee

This committee was established to help us achieve world-class sustainable growth and to help us fulfill our corporate social responsibilities. It is comprised of one executive officer and three independent directors.

Item 6.D. Employees

The following table sets forth the numbers of our regular employees, temporary employees and total employees as of the dates indicated:

Employees	Employees	Total
December 31, 2008	8,964	1,662	10,626
December 31, 2009	9,298	1,416	10,714
December 31, 2010	15,490	4,653	20,143

The number of our employees increased in 2010 primarily due to the establishment in 2010 of Service Ace Co., Ltd., Service Top Co., Ltd., and Network O&S Co., Ltd., our wholly-owned subsidiaries engaged in customer service and network maintenance. Employees of these subsidiaries were previously employed by third-party outsourcing companies.

Labor Relations

As of December 31, 2010, we had a company union comprised of 15,490 regular employees. We have never experienced a work stoppage of a serious nature. Every two years, the union and management negotiate and enter into a new collective bargaining agreement that has a two-year duration, which is focused on employee benefits and welfare. Employee wages are separately negotiated on an annual basis. Our wage negotiations completed in November 2008 resulted in an average wage increase of 2% for 2008 from 2007. Our wage negotiations completed in June 2009 resulted in a wage freeze for 2009. Our wage negotiations completed in December 2010 resulted in an average wage increase of 2.5% for 2010 from 2009. Our wage negotiations for 2011 has not commenced yet. We consider our relations with our employees to be good.

Employee Stock Ownership Association and Other Benefits

Since April 1999, we have been required to contribute an amount equal to 4.5% of employee wages toward a national pension plan. Employees are eligible to participate in an employee stock ownership association. We are not required to, and we do not, make any contributions to the employee stock ownership association, although we subsidize the employee stock ownership association through the Employee Welfare Fund by providing low interest

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rate loans to employees who desire to purchase our stock through the plan in the event of a capitalization by the association. On December 26, 2007 and January 23, 2008, we loaned Won 31.0 billion and Won 29.7 billion, respectively, to our employee stock ownership association to help fund the employee stock ownership association’s acquisition of our treasury shares. Such loans will be repaid over a period of five years, beginning on the second anniversary of each loan date. As of June 1, 2011, the employee stock ownership association owned approximately 0.4% of our issued common stock.

We are required to pay a severance amount to eligible employees who voluntarily or involuntarily cease employment with us, including through retirement. This severance amount is based upon the employee’s length of service with us and the employee’s salary level at the time of severance. As of December 31, 2010, the accrued and unpaid retirement and severance benefits of Won 159.2 billion for all of our employees are reflected in our consolidated financial statements as a liability, of which a total of Won 96.3 billion was funded. Under Korean laws and regulations, we are prevented from involuntarily terminating a full-time employee except under certain limited circumstances. In September 2002, we entered into an employment stabilization agreement with the union. Among other things, this agreement provides for a one-year guarantee of the same wage level in the event that we reorganize a department into a separate entity or we outsource an employee to a separate entity where the wage is lower.

Under the Basic Labor Welfare Act, we may also contribute up to 5% of our annual earnings before tax for employee welfare. Contribution amounts are determined annually following negotiation with the union. The contribution amount for 2008, which was decided in December 2008, was set at 2.6% of our earnings before tax, or Won 40.0 billion. We did not make the contribution in 2009. The contribution amount for 2010, which was decided in December 2010, was set at 1.5% of our earnings before tax, or Won 27.2 billion.

In addition, we provide our employees with miscellaneous other fringe benefits including housing loans, free medical examinations, subsidized on-site child care facilities and sabbatical programs for long-term employees.

Item 6.E. Share Ownership

The following table sets forth the share ownership by our standing and non-standing directors as of June 1, 2011:

		Number of	Percentage of — Total	Special
		Shares	Shares	Voting
Name	Position	Owned	Outstanding	Rights	Options
Standing Directors:
Sung Min Ha	President, Co-Chief Executive Officer & Representative
Director	738	0	None	None
Jin Woo So	Co-Chief Executive Officer & Representative Director; Head
of Platform Business	0	0	None	None
Non-Standing Directors:
Jae Won Chey	Independent Non-executive Director	0	0	None	None
Hyun Chin Lim	Independent Non-executive Director	0	0	None	None
Dal Sup Shim	Independent Non-executive Director	0	0	None	None
Rak Young Uhm	Independent Non-executive Director	0	0	None	None
Jay Young Chung	Independent Non-executive Director	0	0	None	None
Jae Ho Cho	Independent Non-executive Director	0	0	None	None

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ITEM 7. MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS

Item 7.A. Major Shareholders

As of the close of our shareholders’ registry on December 31, 2010, approximately 51.62% of our issued shares were held in Korea by approximately 27,662 shareholders. According to Citibank, N.A., depositary for our American Depositary Receipts, as of December 31, 2010, there were 79,923 U.S. holders of record of our American Depositary Receipts evidencing ADSs, and 24,321,893 shares of our common stock were held in the form of ADSs. As of such date, outstanding ADSs represented approximately 30.12% of our outstanding common stock.

The following table sets forth certain information as of June 1, 2011 with respect to any person known to us to be the beneficial owner of more than 5.0% of the shares of our common stock and with respect to the total amount of such shares owned by our employees and our officers and directors, as a group:

	Number of	Percentage — Total Shares	Total Shares
Shareholder/Category	Shares	Issued	Outstanding
Domestic Shareholders
SK Holdings	18,748,452	23.22	%	26.37	%
Employees(1)	321,394	0.40		0.45
Treasury shares(1)(2)	9,650,712	11.95		N/A
Officers and Directors	13,579	0	*	0	*
Other Domestic Shareholders	12,483,735	15.46		17.56
Foreign Shareholders(3)
Tradewinds Global Investors, LLC	4,050,518	5.02		5.70
Other Foreign Shareholders	35,477,321	43.94		49.90
Total Issued Shares(4)	80,745,711	100.00	%	—
Total Outstanding Shares(5)	71,094,999	—		100.00	%

*	Less than 0.00%.
(1)	Represents shares owned by our employee stock ownership
association. See “Item 6.D. Employees”.
(2)	Treasury shares do not have any voting rights; includes
2,177,389 treasury shares that were deposited with Korea
Securities Depository to be reserved and used to satisfy the
conversion rights of the holders of US$332.5 million in
1.75% convertible notes that were sold in April 2009.
(3)	Based on the data collected by the KRX KOSPI Market under the
Foreign Exchange Transaction Laws.
(4)	On January 9, 2009, the Company purchased (using retained
earnings) and cancelled 448,000 common shares. As a result of
such retirement of common shares, the total number of shares
decreased to 80,745,711 from 89,278,946 which is the total
number of shares issued to date.
(5)	Represents total issued shares excluding treasury shares.

The following table sets forth significant changes in the percentage ownership held by our major shareholders during the past three years:

Shareholder	As of December 31, — 2008	2009	2010
	(As a percentage of total issued shares)(1)
SK Group(2)	23.09 %	23.22 %	23.22 %
SK Holdings	23.09	23.22	23.22
POSCO(3)	2.88	2.90	2.90

(1) Includes 8,707,696, 8,400,712 and 9,650,712 shares held in treasury as of December 31, 2008, 2009 and 2010, respectively.

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| (2) | SK Group’s ownership interest as of December 31, 2008,
2009 and 2010 consisted of the ownership interest of SK Holdings
only. |
| --- | --- |
| (3) | POSCO acquired these shares in connection with our acquisition
of a 27.7% equity interest in Shinsegi. |

Except as described above, other than companies in the SK Group and POSCO, no other persons or entities known by us to be acting in concert, directly or indirectly, jointly or severally, own in excess of 5.0% of our total shares outstanding or exercise control or could exercise control over our business.

On July 1, 2007, the company formerly known as SK Corporation underwent a corporate reorganization, pursuant to which SK Corporation spun off substantially all of its operating business divisions into a newly established corporation named SK Energy Co., Ltd. The surviving company currently operates as a holding company, renamed SK Holdings Co., Ltd. Ownership of all our shares held by SK Corporation immediately preceding the reorganization passed to SK Holdings as of July 1, 2007.

As of June 1, 2011, SK Holdings held 23.22% of our shares of common stock. For a description of our foreign ownership limitation, see “Item 3.D. Risk Factors — If SK Holdings causes us to breach the foreign ownership limitations on shares of our common stock, we may experience a change of control” and “Item 4.B. Business Overview — Law and Regulation — Foreign Ownership and Investment Restrictions and Requirements”. In the event that SK Holdings announces plans of a sale of our shares, we expect to be able to discuss the details of such sale with them in advance and will endeavor to minimize any adverse effects on our share prices as a result of such sale.

As of June 1, 2011, the total number of shares of our common stock outstanding was 71,094,999.

Other than as disclosed herein, there are no other arrangements, to the best of our knowledge, which would result in a material change in the control of us. Our major shareholders do not have different voting rights.

Item 7.B. Related Party Transactions

SK Networks

In September 2009, we acquired the leased-line business and related ancillary businesses from SK Networks for Won 892.76 billion. We assumed Won 611.44 billion of debt as part of the transaction. Prior to such acquisition, KT and SK Networks provided a substantial majority of our leased lines. For a more detailed discussion of the lines we lease from fixed-line operators, see “Item 4.B. Business Overview — Digital Cellular Network — Network Infrastructure”.

As of December 31, 2010, we had Won 3.2 billion of accounts receivables from SK Networks. As of the same date, we had Won 99.3 billion of accounts payable to SK Networks, mainly consisting of commissions to dealers owned by SK Networks.

Other Related Parties

On July 22, 2003, we acquired 2,481,310 shares of POSCO common stock held by SK Holdings at a price of Won 134,000 per share in accordance with a resolution of our board of directors dated July 22, 2003. We decided to purchase the shares for strategic reasons in order to address overhang concerns arising from POSCO’s ownership of our shares. As of December 31, 2009, POSCO owned 2.9% of our shares.

We are a party to an agreement with SK C&C pursuant to which SK C&C provides us with system maintenance services. This agreement will expire on December 31, 2013. We also enter into agreements with SK C&C from time to time for specific information technology-related projects. The aggregate fees we paid to SK C&C for information technology services amounted to Won 273.3 billion in 2008, Won 317.5 billion in 2009 and Won 316.4 billion in 2010. We also purchase various information technology-related equipment from SK C&C from time to time. The total amount of such purchases was Won 232.2 billion for 2008, Won 237.5 billion in 2009 and Won 270.9 billion in 2010. We are a party to several service agreements with SK C&C relating to the development and maintenance of our information technologies systems.

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We are part of the SK Group of affiliated companies. See “Item 7.A. Major Shareholders” As disclosed in note 24 of the notes to our consolidated financial statements, we had related party transactions with a number of affiliated companies of the SK Group during the year ended December 31, 2010.

In March 2005, we invested Won 14.4 billion to purchase 8,000,000 shares, representing a 21.6% equity stake, in iHQ, Inc., or iHQ, one of Korea’s largest entertainment companies and the controlling shareholder of YTN Media, Inc. In 2006, as a result of an additional increase in our equity interest, iHQ became a consolidated subsidiary. In July 2007, we further invested Won 10 billion in iHQ, increasing our equity interest to 37.1%. We sold 10,930,844 shares of iHQ’s common stock at Won 18.5 billion in April 2010 and 239,170 shares at Won 0.3 billion in July 2010. After such sales, our equity stake in iHQ decreased to 9.4%.

Item 7.C. Interests of Experts and Counsel

Not applicable.

ITEM 8. FINANCIAL INFORMATION

Item 8.A. Consolidated Statements and Other Financial Information

See “Item 18. Financial Statements” and pages F-1 through F-109.

Legal Proceedings

FTC Proceedings

In December 2006, the FTC fined us Won 330 million in respect of certain allegedly anti-competitive tactics we employed in connection with MelOn, our digital music portal. We paid such fine in April 2007 and filed an appeal at the Seoul High Court, an appellate court, which found in our favor. The case is currently pending before the Supreme Court of Korea.

In January 2009, the FTC fined us Won 1.3 billion for our activities allegedly restricting competition in markets for wireless Internet services. We paid such fine in March 2009.

In February 2009, the FTC fined us Won 500 million for our activities allegedly restricting competition in markets for personal digital assistant, or PDA, devices. We paid such fine in April 2009 and filed an appeal at the Seoul High Court. The Seoul High Court entered a judgment in our favor in April 2010, which was affirmed by the Supreme Court of Korea in August 2010. Pursuant to the court’s judgment, we were refunded the fine amount.

In June 2011, the FTC fined us Won 2.0 billion and Loen Entertainment Inc., our consolidated subsidiary, Won 8.7 billion for activities allegedly restricting competition in markets for digital music services. We and Loen Entertainment are considering whether to file an appeal.

MIC and KCC Proceedings

In December 2007, the MIC imposed fines on us, KTF, LG Telecom and KT for improperly continuing to apply discounted youth rates to subscribers who had reached legal majority in the amounts of Won 800 million, Won 200 million, Won 150 million and Won 50 million, respectively. We paid such fine in January 2008.

In January 2008, the MIC ordered us, KTF and LG Telecom to pay fines in the amounts of Won 950 million, Won 250 million and Won 150 million, respectively, alleging we had improperly solicited subscribers to our value-added services. We paid such fine in March 2008.

In February 2008, the MIC ordered us, KTF, LG Telecom and KT to pay fines of Won 600 million, Won 150 million, Won 100 million and Won 50 million, respectively, alleging our authorized dealers had artificially inflated subscriber numbers. We paid such fine in March 2008.

In September 2008, the KCC ordered us to pay a fine of Won 600 million alleging that we enrolled subscribers for our T-Ring service without such subscribers’ consent. We paid such fine in September 2008.

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On December 30, 2008, we were fined in the amount of Won 50 million for a violation of Telecommunications Law involving the mismanagement of privacy policy. We paid such fine in January 2010.

On October 13, 2009, the KCC ordered us to pay Won 140 million and publish a newspaper notice in a case relating to the subscription for mobile telephone services using national identification numbers of the deceased and our failure to verify the required documents. We paid such fine in November 2009.

On December 2, 2010, the KCC ordered us to pay a fine of Won 6.2 billion alleging that we had improperly charged subscribers for wireless data transmitted without their request. We paid such fine in March 2011.

SK Broadband Litigation

Since April 2008, customers of SK Broadband (then Hanarotelecom Incorporated) have filed lawsuits against SK Broadband in the Seoul Central District Court, alleging that subscribers’ personal information was leaked due to the company’s poor data protection policies. The plaintiffs also alleged that current and former employees were involved in the sale of subscribers’ personal information, including resident registration identification numbers, telephone numbers and mailing addresses. As of March 31, 2011, the number of plaintiffs was 23,930 and the aggregate amount of damages claimed by such plaintiffs was approximately Won 24.1 billion. The case is currently pending before the Seoul Central District Court.

In addition, in April 2008, an investigation against SK Broadband was initiated by the Seoul Central Prosecutor’s Office, the KCC and the Korean Trade Commission. The main subjects of this investigation include the possible improper provision of broadband service by misusing subscribers’ personal information and the violation of standardized customer contracts by SK Broadband. In connection with its investigation, the KCC suspended SK Broadband from soliciting new subscribers for its broadband Internet services for a period of 40 days from July 1, 2008 and, in addition, imposed an administrative fine of Won 178 million on the grounds that SK Broadband had violated the Telecommunication Business Act and standard customer contracts. SK Broadband paid such fine in July 2008.

Except as described above, neither we nor any of our subsidiaries are involved in any litigation, arbitration or administrative proceedings relating to claims which may have, or have had during the twelve months preceding the date hereof, a significant effect on our financial position or the financial position of our subsidiaries taken as a whole, and, so far as we are aware, no such litigation, arbitration or administrative proceedings are pending or threatened.

Dividends

Annual dividends, if any, on our outstanding shares must be approved at the annual general meeting of shareholders. This meeting is generally held in March of the following year, and the annual dividend is generally paid shortly after the meeting. Since our shareholders have discretion to declare annual dividends, we cannot give any assurance as to the amount of dividends per share or that any dividends will be declared at all. Interim dividends, if any, can be approved by a resolution of our board of directors. Once declared, dividends must be claimed within five years, after which the right to receive the dividends is extinguished and reverted to us.

We pay cash dividends to the ADR depositary in Won. Under the terms of the deposit agreement, cash dividends received by the ADR depositary generally are to be converted by the ADR depositary into Dollars and distributed to the holders of the ADSs, less withholding tax, other governmental charges and the ADR depositary’s fees and expenses. The ADR depositary’s designated bank in Korea must approve this conversion and remittance of cash dividends. See “Item 10.B. Memorandum and Articles of Incorporation — Description of American Depositary Shares” and “Item 10.D. Exchange Controls — Korean Foreign Exchange Controls and Securities Regulations”.

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The following table sets forth the dividend per share and the aggregate total amount of dividends declared (including any interim dividends), as well as the number of outstanding shares entitled to dividends, with respect to the years indicated. The dividends set out for each of the years below were paid in the immediately following year.

	Dividend		Total Amount	Shares Entitled
Year Ended December 31,	per Share		of Dividends	to Dividend
	(In Won)		(In billions of Won)
2006	W	8,000	W	582.4	72,667,459
2007		9,400		682.4	72,584,677
2008		9,400		682.0	72,524,203
2009		9,400		680.0	72,344,999
2010		9,400		669.5	71,094,999

We distribute dividends to our shareholders in proportion to the number of shares owned by each shareholder. The common shares represented by the ADSs have the same dividend rights as other outstanding common shares.

Holders of non-voting shares are entitled to receive dividends in priority to the holders of common shares. The dividend on the non-voting shares is between 9.0% and 25.0% of the par value as determined by the board of directors at the time of their issuance. If the dividends for common shares exceed the dividends for non-voting shares, the holders of non-voting shares will be entitled to participate in the distribution of such excess amount with the holders of common shares. If the amount available for dividends is less than the aggregate amount of the minimum required dividend, holders of non-voting shares will be entitled to receive such accumulated unpaid dividend from dividends payable in the next fiscal year before holders of common shares. There are no non-voting shares issued or outstanding.

We declare dividends annually at the annual general meeting of shareholders which is generally held within three months after the end of the fiscal year. We pay the annual dividend shortly after the annual general meeting to the shareholders of record or registered pledges as of the end of the preceding fiscal year. We may distribute the annual dividend in cash or in shares. However, a dividend of shares must be distributed at par value. If the market price of the shares is less than their par value, dividends in shares may not exceed one-half of the annual dividend. Our obligation to pay dividend expires if no claim to dividend is made for five years from the payment date.

Under the Korean Commercial Code, we may pay an annual dividend only out of the excess of our net assets, on a non-consolidated basis, over the sum of (1) our stated capital and (2) the total amount of our capital surplus reserve and legal reserve accumulated up to the end of the relevant dividend period. In addition, we may not pay an annual dividend unless we have set aside as a legal reserve an amount equal to at least 10% of the cash portion of the annual dividend or until we have accumulated a legal reserve of not less than one-half of our stated capital. We may not use our legal reserve to pay cash dividends but may transfer amounts from our legal reserve to capital stock or use our legal reserve to reduce an accumulated deficit.

In addition, the Korean Commercial Code and our articles of incorporation provide that, in addition to annual dividends, we may pay interim dividends once during each fiscal year. Unlike annual dividends, the decision to pay interim dividends can be made by a resolution of the board of directors and is not subject to shareholder approval. Any interim dividends must be paid in cash to the shareholders of record as of June 30 of the relevant fiscal year. In August 2010, we distributed such interim dividends at Won 1,000 per share to our shareholders for a total amount of Won 72.3 billion.

Under the Financial Investment Services and Capital Markets Act, the total amount of interim dividends payable in a fiscal year shall not be more than the net assets on the balance sheet of the immediately preceding fiscal year, after deducting (1) a company’s capital in the immediately preceding fiscal year, (2) the aggregate amount of its capital reserves and legal reserves accumulated up to the immediately preceding fiscal year, (3) the amount of earnings for dividend payments confirmed at the general shareholders’ meeting with respect to the immediately preceding fiscal year and (4) the amount of legal reserve that should be set aside for the current fiscal year following the interim dividend payment. Furthermore, the rate of interim dividends for non-voting shares must be the same as that for our common shares.

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Our obligation to pay interim dividends expires if no claims to such dividends are made for a period of five years from the payment date.

Item 8.B. Significant Changes

Not applicable.

ITEM 9. THE OFFER AND LISTING

Item 9.A. Offering and Listing Details

These matters are described under Item 9.C. below where relevant.

Item 9.B. Plan of Distribution

Not applicable.

Item 9.C. Markets

The principal trading market for our common stock is the KRX KOSPI Market. As of June 1, 2011, 71,094,999 shares of our common stock were outstanding.

The ADSs are traded on the New York Stock Exchange and the London Stock Exchange. The ADSs have been issued by the ADR depositary and are traded on the New York Stock Exchange under the ticker symbol “SKM”. Each ADS represents one-ninth of one share of our common stock. As of June 1, 2011, ADSs representing approximately 24,321,893 shares of our common stock were outstanding.

Shares of Common Stock

The following table sets forth the high, low and closing prices and the average daily trading volume of the shares of common stock on the KRX KOSPI Market since January 1, 2005:

	Prices			Average Daily — Trading
Calendar Year	High(1)	Low(1)	Close	Volume
	(Won per shares)			(Number of shares)
2006	235,000	177,000	222,500	190,565
First Quarter	203,500	177,000	192,500	177,491
Second Quarter	235,000	190,000	204,000	216,607
Third Quarter	204,500	181,000	201,500	204,167
Fourth Quarter	233,000	195,000	222,500	163,534
2007	274,000	188,500	249,000	244,056
First Quarter	223,000	190,500	191,500	206,155
Second Quarter	215,000	188,500	213,000	220,091
Third Quarter	221,000	192,000	210,000	198,816
Fourth Quarter	274,000	204,500	249,000	349,701
2008	232,000	178,000	209,000	322,706
First Quarter	232,000	178,500	186,500	330,196
Second Quarter	212,000	180,000	190,500	265,973
Third Quarter	210,500	178,000	205,500	317,506
Fourth Quarter	227,500	187,500	209,000	374,768

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	Prices			Average Daily — Trading
Calendar Year	High(1)	Low(1)	Close	Volume
	(Won per shares)			(Number of shares)
2009	218,000	166,000	169,500	332,913
First Quarter	218,000	180,500	192,000	231,340
Second Quarter	183,500	170,500	174,000	278,545
Third Quarter	185,500	166,000	182,500	242,112
Fourth Quarter	190,500	169,500	169,500	171,571
2010	188,000	158,500	173,500	193,937
First Quarter	188,000	168,500	173,500	306,532
Second Quarter	178,000	158,500	160,500	202,245
Third Quarter	171,500	158,500	171,500	145,561
Fourth Quarter	180,500	168,500	173,500	127,235
2011 (through June 27)	172,500	152,500	156,500	143,003
First Quarter	172,500	156,000	163,500	124,796
January	172,500	164,500	164,500	103,415
February	165,000	156,000	163,000	118,119
March	166,000	157,000	163,500	149,305
Second Quarter (through June 27)	169,000	152,500	156,500	161,913
April	166,000	157,500	162,500	125,907
May	169,000	160,000	160,000	198,397
June (through June 27)	160,000	152,500	156,500	163,382

Source: Korea Exchange

(1) Both high and low prices are based on the daily closing prices for the period.

American Depositary Shares

The following table sets forth the high, low and closing prices and the average daily trading volume of the ADSs on the New York Stock Exchange since January 1, 2005:

	Prices			Average Daily — Trading
Calendar Year	High	Low	Close	Volume
	(US$ per ADS)			(Number of ADSs)
2006	27.70	20.62	26.48	866,527
First Quarter	24.56	20.62	23.59	952,819
Second Quarter	27.70	22.54	23.42	1,045,503
Third Quarter	24.16	21.14	23.63	789,033
Fourth Quarter	27.42	22.89	26.48	680,124
2007	33.33	22.46	29.84	1,379,370
First Quarter	26.41	22.46	23.42	1,046,780
Second Quarter	28.02	23.41	27.35	1,498,295
Third Quarter	30.30	26.15	29.70	1,498,032
Fourth Quarter	33.33	29.00	29.84	1,462,495

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	Prices			Average Daily — Trading
Calendar Year	High	Low	Close	Volume
	(US$ per ADS)			(Number of ADSs)
2008	27.96	14.63	18.18	1,762,329
First Quarter	27.96	19.90	21.61	1,992,134
Second Quarter	23.47	20.67	20.77	1,106,308
Third Quarter	22.29	18.68	18.82	1,663,854
Fourth Quarter	19.51	14.63	18.18	2,297,794
2009	18.64	12.59	16.26	1,246,873
First Quarter	18.35	12.59	15.45	1,280,533
Second Quarter	16.73	14.84	15.15	1,161,833
Third Quarter	17.50	14.82	17.45	990,400
Fourth Quarter	18.64	15.97	16.26	1,788,667
2010	19.13	14.73	18.63	1,288,546
First Quarter	18.33	16.32	17.26	1,422,379
Second Quarter	18.51	14.73	14.73	1,486,937
Third Quarter	17.48	14.84	17.47	1,294,034
Fourth Quarter	19.13	17.74	18.63	960,206
2011 (through June 27)	19.80	16.83	17.91	1,640,550
First Quarter	19.02	16.83	18.81	1,639,731
January	18.58	17.30	17.30	1,487,450
February	17.74	16.83	17.59	1,531,542
March	18.81	17.51	18.81	1,861,522
Second Quarter (through June 27)	19.80	17.36	17.91	1,641,397
April	19.02	18.24	18.98	1,034,245
May	19.80	17.69	17.69	2,204,262
June (through June 27)	18.27	17.36	17.91	1,658,389

The Korean Securities Market

The Korea Exchange Inc.

With the enactment of the Korea Stock and Futures Exchange Act, which came into effect on January 27, 2005, the three existing spot and futures exchanges (which were the Korea Stock Exchange, Korean Futures Exchange, and KOSDAQ) and KOSDAQ Committee, a sub-organization of Korea Securities Dealers Association, were merged and integrated into the Korea Exchange Inc. as a joint stock company. There are three different markets run by the Korea Exchange: the KRX KOSPI Market, the KRX KOSDAQ Market (the “KRX KOSDAQ Market”), and the KRX Derivatives Market. The Korea Exchange has two trading floors located in Seoul, one for the KRX KOSPI Market and one for the KRX KOSDAQ Market, and one trading floor in Busan for the KRX Derivatives Market. The Korea Exchange is a limited liability company, the shares of which are held by (i) securities companies and futures companies that were formerly members of the Korea Stock Exchange or the Korea Futures Exchange, (ii) the Small Business Corporation, (iii) the Korea Securities Finance Corporation and (iv) the Korea Securities Dealers Association. Currently, the Korea Exchange is the only stock exchange in Korea and is run by membership, having most of Korean securities companies and some Korean branches of foreign securities companies as its members.

As of June 25, 2010, the aggregate market value of equity securities listed on the KRX KOSPI Market was approximately Won 953.1 trillion. For the year ended December 31, 2009, the average daily trading volume of equity securities was approximately 485.7 million shares with an average transaction value of Won 5,795.6 billion.

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For the period from January 1, 2010 through June 25, 2010 the average trading volume of equity securities was approximately 404.4 million shares with an average trading value of Won 5,261.5 billion.

The Korea Exchange has the power in some circumstances to suspend trading in the shares of a given company or to de-list a security. The Korea Exchange also restricts share price movements. All listed companies are required to file accounting reports annually, semi-annually and quarterly and to release immediately all information that may affect trading in a security.

The Government has in the past exerted, and continues to exert, substantial influence over many aspects of the private sector business community that can have the intention or effect of depressing or boosting the market. In the past, the Government has informally both encouraged and restricted the declaration and payment of dividends, induced mergers to reduce what it considers an excess capacity in a particular industry and induced private companies to publicly offer their securities.

The Korea Exchange publishes the Korea Composite Stock Price Index, or KOSPI, every ten seconds, which is an index of all equity securities listed on the KRX KOSPI Market. On January 1, 1983, the method of computing KOSPI was changed from the Dow Jones method to the aggregate value method. In the new method, the market capitalizations of all listed companies are aggregated, subject to certain adjustments, and this aggregate is expressed as a percentage of the aggregate market capitalization of all listed companies as of the base date, January 4, 1980.

Movements in KOSPI are set out in the following table together with the associated dividend yields and price to earnings ratios:

					Period Average
					Dividend
					Yield(1)	Price
Year	Opening	High	Low	Closing	(%)	Earnings
1980	100.00	119.36	100.00	106.87	20.9	2.6
1981	97.95	165.95	93.14	131.37	13.2	3.1
1982	123.60	134.49	106.00	127.31	10.5	3.4
1983	122.52	134.46	115.59	121.21	6.9	3.8
1984	116.73	142.46	114.37	142.46	5.1	4.5
1985	139.53	163.37	131.40	163.37	5.3	5.2
1986	161.40	279.67	153.85	272.61	4.3	7.6
1987	264.82	525.11	264.82	525.11	2.6	10.9
1988	532.04	922.56	527.89	907.20	2.4	11.2
1989	919.61	1,007.77	844.75	909.72	2.0	13.9
1990	908.59	928.77	566.27	696.11	2.2	12.8
1991	679.75	763.10	586.51	610.92	2.6	11.2
1992	624.23	691.48	459.07	678.44	2.2	10.9
1993	697.41	874.10	605.93	866.18	1.6	12.7
1994	879.32	1,138.75	860.47	1,027.37	1.2	16.2
1995	1,013.57	1,016.77	847.09	882.94	1.2	16.4
1996	888.85	986.84	651.22	651.22	1.3	17.8
1997	653.79	792.29	350.68	376.31	1.5	17.0
1998	385.49	579.86	280.00	562.46	1.9	10.8
1999	587.57	1,028.07	498.42	1,028.07	1.1	13.5
2000	1,059.04	1,059.04	500.60	504.62	2.4	15.3
2001	520.95	704.50	468.76	693.70	1.7	29.3
2002	724.95	937.61	584.04	829.44	1.8	15.6
2003	635.17	822.16	515.24	810.71	2.1	10.1
2004	821.26	936.06	719.59	895.92	2.1	15.8
2005	893.71	1,379.37	870.84	1,379.37	1.7	11.0
2006	1,389.27	1,464.70	1,192.09	1,434.46	1.7	11.4

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					Period Average
					Dividend
					Yield(1)	Price
Year	Opening	High	Low	Closing	(%)	Earnings
2007	1,435.26	2,064.85	1,355.79	1,897.13	1.4	16.8
2008	1,853.45	1,888.88	938.75	1,124.47	2.6	9.0
2009	1,157.4	1,718.88	1,018.81	1,682.77	1.2	23.7
2010	1,696.14	2,052.97	1,532.68	2,051.00	1.1	17.8
2011 (through June 27)	2,063.69	2,229.0	1,923.9	2,070.3	1.2	16.1

Source: Korea Exchange

| (1) | Dividend yields are based on daily figures. Before 1983,
dividend yields were calculated at the end of each month.
Dividend yields after January 3, 1984 include cash
dividends only. |
| --- | --- |
| (2) | The price to earnings ratio is based on figures for companies
that record a profit in the preceding year. |

KOSPI closed at 2,094.4 on June 29, 2011.

Shares are quoted “ex-dividend” on the first trading day of the relevant company’s accounting period. Since the calendar year is the accounting period for the majority of listed companies, this may account for the drop in KOSPI between its closing level at the end of one calendar year and its opening level at the beginning of the following calendar year.

With certain exceptions, principally to take account of a share being quoted “ex-dividend” and “ex-rights”, upward and downward movements in share prices of any category of shares on any day are limited under the rules of the Korea Exchange to 15.0% of the previous day’s closing price of the shares, rounded down as set out below:

Previous Day’s Closing Price W	Rounded Down to W
Less than 5,000	W	5
5,000 to less than 10,000		10
10,000 to less than 50,000		50
50,000 to less than 100,000		100
100,000 to less than 500,000		500
500,000 or more		1,000

As a consequence, if a particular closing price is the same as the price set by the fluctuation limit, the closing price may not reflect the price at which persons would have been prepared, or would be prepared to continue, if so permitted, to buy and sell shares. Orders are executed on an auction system with priority rules to deal with competing bids and offers.

Due to a recent deregulation of restrictions on brokerage commission rates, the brokerage commission rate on equity securities transactions may be determined by the parties, subject to commission schedules being filed with the Korea Exchange by the securities companies. In addition, a securities transaction tax of 0.15% of the sales price will generally be imposed on the transfer of shares or certain securities representing rights to subscribe for shares. A special agricultural and fishery tax of 0.15% of the sales prices will also be imposed on transfer of these shares and securities on the KRX KOSPI Market. See “Item 10.E. Taxation — Korean Taxation”.

The following table sets forth the number of companies listed on the KRX KOSPI Market, the corresponding total market capitalization and the average daily trading volume at the end of the periods indicated:

	Market Capitalization on the
	Last Day of Each Period				Average Daily Trading Volume, Value
	Number of
	Listed	(Billions of		(Millions of	Thousands of		(Millions of		(Thousands of
Year	Companies	Won)		US$)(1)	Shares		Won)		US$)(1)
1981	343	W	2,959	US $	4,223	10,565	W	8,708	US $	12,427
1982	334		3,001		4,012	9,704		6,667		8,914

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	Market Capitalization on the
	Last Day of Each Period			Average Daily Trading Volume, Value
	Number of
	Listed	(Billions of	(Millions of	Thousands of	(Millions of	(Thousands of
Year	Companies	Won)	US$)(1)	Shares	Won)	US$)(1)
1983	328	3,490	4,361	9,325	5,941	7,425
1984	336	5,149	6,207	14,847	10,642	12,829
1985	342	6,570	7,362	18,925	12,315	13,798
1986	355	11,994	13,863	31,755	32,870	37,991
1987	389	26,172	32,884	20,353	70,185	88,183
1988	502	64,544	93,895	10,367	198,364	288,571
1989	626	95,477	140,119	11,757	280,967	412,338
1990	669	79,020	109,872	10,866	183,692	255,412
1991	686	73,118	95,541	14,022	214,263	279,973
1992	688	84,712	107,027	24,028	308,246	389,445
1993	693	112,665	138,870	35,130	574,048	707,566
1994	699	151,217	190,762	36,862	776,257	979,257
1995	721	141,151	181,943	26,130	487,762	628,721
1996	760	117,370	138,490	26,571	486,834	928,418
1997	776	70,989	41,881	41,525	555,759	327,881
1998	748	137,799	114,261	97,716	660,429	547,619
1999	725	349,504	307,662	278,551	3,481,620	3,064,806
2000	704	188,042	148,415	306,163	2,602,211	2,053,837
2001	689	255,850	194,785	473,241	1,997,420	1,520,685
2002	683	258,681	216,071	857,245	3,041,598	2,540,590
2003	684	355,363	298,624	542,010	2,216,636	1,862,719
2004	683	412,588	398,597	372,895	2,232,109	2,156,419
2005	702	655,075	648,589	467,629	3,157,662	3,126,398
2006	731	704,588	757,622	279,096	3,435,180	3,693,742
2007	746	951,900	1,017,205	363,732	5,539,588	5,919,697
2008	765	576,888	457,122	355,205	5,189,644	4,112,238
2009	770	887,316	762,528	485,657	5,795,552	4,980,494
2010	777	1,114,882	1,260,486	379,171	5,607,749	6,340,121
2011 (through June 27)	782	1,163,016	1,078,165	325,565	7,356,551	6,819,830

Source: Korea Exchange

(1) Converted at the noon buying rate on the last business day of the period indicated.

The Korean securities markets are principally regulated by the Financial Services Commission of Korea and became subject to the Financial Investment Services and Capital Markets Act beginning in February 2009. The law imposes restrictions on insider trading and price manipulation, requires specified information to be made available by listed companies to investors and establishes rules regarding margin trading, proxy solicitation, takeover bids, acquisition of treasury shares and reporting requirements for shareholders holding substantial interests.

Further Opening of the Korean Securities Market

Stock index futures market was opened on May 3, 1996 and a stock index option market was opened on July 7, 1997, in each case at the Korea Stock Exchange. Remittance and repatriation of funds in connection with investment in stock index futures and options are subject to regulations similar to those that govern remittance and repatriation in the context of foreign investment in Korean stocks.

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In addition, the Korea Stock Exchange opened new option markets for stocks of seven companies including our shares of common stock and common stock of six other companies on January 28, 2002. Foreigners will be permitted to invest in such options for individual stocks subject to certain procedural requirements.

Starting from May 1, 1996, foreign investors were permitted to invest in warrants representing the right to subscribe for shares of a company listed on the Korea Stock Exchange or registered on the KOSDAQ, subject to certain investment limitations. A foreign investor may not acquire such warrants with respect to shares of a class of a company for which the ceiling on aggregate investment by foreigners has been reached or exceeded.

As of December 30, 1997, foreign investors were permitted to invest in all types of corporate bonds, bonds issued by national or local governments and bonds issued in accordance with certain special laws without being subject to any aggregate or individual investment ceiling. The Financial Services Commission of Korea sets forth procedural requirements for such investments. The Government announced on February 8, 1998 its plans for the liberalization of the money market with respect to investment in money market instruments by foreigners in 1998. According to the plan, foreigners have been permitted to invest in money market instruments issued by corporations, including commercial paper, starting February 16, 1998 with no restrictions as to the amount. Starting May 25, 1998, foreigners have been permitted to invest in certificates of deposit and repurchase agreements.

Currently, foreigners are permitted to invest in securities including shares of most Korean companies that are not listed on the KRX KOSPI Market or the KRX KOSDAQ Market and in bonds that are not listed.

Protection of Customer’s Interest in Case of Insolvency of Financial Investment Companies with a Brokerage License

Under Korean law, the relationship between a customer and a financial investment company with a brokerage license in connection with a securities sell or buy order is deemed to be consignment and the securities acquired by a consignment agent (i.e., the financial investment company with a brokerage license) through such sell or buy order are regarded as belonging to the customer in so far as the customer and the consignment agent’s creditors are concerned. Therefore, in the event of a bankruptcy or rehabilitation procedure involving a financial investment company with a brokerage license, the customer of such financial investment company is entitled to the proceeds of the securities sold by such financial investment company.

When a customer places a sell order with a financial investment company with a brokerage license which is not a member of the Korea Exchange and this financial investment company places a sell order with another financial investment company with a brokerage license which is a member of the Korea Exchange, the customer is still entitled to the proceeds of the securities sold received by the non-member company from the member company regardless of the bankruptcy or rehabilitation of the non-member company.

Under the Financial Investment Services and Capital Markets Act, the Korea Exchange is obliged to indemnify any loss or damage incurred by a counterparty as a result of a breach by its members. If a financial investment company with a brokerage license which is a member of the Korea Exchange breaches its obligation in connection with a buy order, the Korea Exchange is obliged to pay the purchase price on behalf of the breaching member.

When a customer places a buy order with a non-member company and the non-member company places a buy order with a member company, the customer has the legal right to the securities received by the non-member company from the member company because the purchased securities are regarded as belonging to the customer in so far as the customer and the non-member company’s creditors are concerned.

As the cash deposited with a financial investment company with a brokerage license is regarded as belonging to such financial investment company, which is liable to return the same at the request of its customer, the customer cannot take back deposited cash from the financial investment company with a brokerage license if a bankruptcy or rehabilitation procedure is instituted against such financial investment company and, therefore, can suffer from loss or damage as a result. However, the Depositor Protection Act provides that Korea Deposit Insurance Corporation will, upon the request of the investors, pay investors up to Won 50 million per investor in case of such financial investment company’s bankruptcy, liquidation, cancellation of securities business license or other insolvency events. Pursuant to the Financial Investment Services and Capital Markets Act, subject to certain exceptions, financial investment companies with a brokerage license are required to deposit the cash received from their

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customers with the Korea Securities Finance Corporation, a special entity established pursuant to the Financial Investment Services and Capital Markets Act. Set-off or attachment of cash deposits by financial investment companies with a brokerage license is prohibited. The premiums related to this insurance under the Depositor Protection Act are paid by financial investment companies with a brokerage license.

Item 9.D Selling Shareholders

Not Applicable.

Item 9.E. Dilution

Not Applicable.

Item 9.F. Expenses of the Issue

Not Applicable.

ITEM 10. ADDITIONAL INFORMATION

Item 10.A. Share Capital

Not Applicable.

Item 10.B. Memorandum and Articles of Incorporation

Description of Capital Stock

This section provides information relating to our capital stock, including brief summaries of material provisions of our articles of incorporation, the Financial Investment Services and Capital Markets Act, the Korean Commercial Code, the Telecommunications Business Act and related laws of Korea, all as currently in effect. The following summaries are subject to, and are qualified in their entirety by reference to, our articles of incorporation and the applicable provisions of the Financial Investment Services and Capital Markets Act, the Korean Commercial Code and the Telecommunications Business Act. We have filed copies of our articles of incorporation and the Telecommunications Business Act as exhibits to our annual reports on Form 20-F.

General

The name of our company is SK Telecom Co., Ltd. We are registered under the laws of Korea under the commercial registry number of 110111-0371346. As specified in Article 2 (Objectives) of our articles of incorporation, as amended and approved at our general shareholders meeting held on March 12, 2010, the company’s objectives are the rational management of the telecommunications business, development of telecommunications technology, and contribution to public welfare and convenience. In order to achieve these objectives, we are engaged in the following:

•	information and communication business;
•	sale and lease of subscriber handsets;
•	new media business;
•	advertising business;
•	mail order business;
•	development, management and leasing of real estate properties;
•	research and technology development relating to the first four
items above;
•	overseas and import/export business relating to the first four
items above;
•	manufacture and distribution business relating to the first four
items above;

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•	tourism;
•	electronic financial services business;
•	film business (production, import, distribution and screening);
•	lifetime education and management of lifetime educational
facilities;
•	electric engineering business;
•	information- and communication-related engineering and
construction business;
•	ubiquitous city construction and related service
business; and
•	any business or undertaking incidental or conducive to the
attainment of the objectives stated above.

Currently, our authorized share capital is 220,000,000 shares, which consists of shares of common stock, par value Won 500 per share, and shares of non-voting stock, par value Won 500 per share (common shares and non-voting shares together are referred to as “shares”). Under our articles of incorporation, we are authorized to issue up to 5,500,000 non-voting preferred shares. As of June 1, 2011, 80,745,711 common shares were issued, of which 9,650,712 shares were held by us in treasury. We have never issued any non-voting preferred shares. All of the issued and outstanding common shares are fully-paid and non-assessable and are in registered form. We issue share certificates in denominations of 1, 5, 10, 50, 100, 500, 1,000 and 10,000 shares.

Board of Directors

Meetings of the board of directors are convened by the representative director as he or she deems necessary or upon the request of three or more directors. The board of directors determines all important matters relating to our business. In addition, the prior approval of the majority of the independent non-executive directors is required for certain matters, which include:

| • | investment by us or any of our subsidiaries in a foreign company
in equity or acquisition of such foreign company’s other
overseas assets in an amount equal to 5.0% or more of our
shareholders’ equity under our most recent balance sheet;
and |
| --- | --- |
| • | contribution of capital, loans or guarantees, acquisition of our
subsidiaries’ assets or similar transactions with our
affiliated companies in excess of Won 10 billion through
one or a series of transactions. |

Resolutions of the board are adopted in the presence of a majority of the directors in office and by the affirmative vote of a majority of the directors present. No director who has an interest in a matter for resolution may exercise his or her vote upon such matter.

There are no specific shareholding requirements for director’s qualification. Directors are elected at a general meeting of shareholders if the approval of the holders of the majority of the voting shares present at such meeting is obtained and if such majority also represents at least one-fourth of the total number of shares outstanding. Under the Korean Commercial Code, unless otherwise stated in the articles of incorporation, holders of an aggregate of 1% or more of the outstanding shares with voting rights may request cumulative voting in any election for two or more directors. Our articles of incorporation do not permit cumulative voting for the election of directors.

The term of office for directors is until the close of the third annual general shareholders meeting convened after he or she commences his or her term. Our directors may serve consecutive terms and our shareholders may remove them from office at any time by a special resolution adopted at a general meeting of shareholders.

Dividends

We distribute dividends to our shareholders in proportion to the number of shares owned by each shareholder. The common shares represented by the ADSs have the same dividend rights as other outstanding common shares. For a detailed discussion of our dividend policy, see “Item 8.A. Consolidated Statements and Other Financial Information — Dividends .”

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Distribution of Free Shares

In addition to paying dividends in shares out of our retained or current earnings, we may also distribute to our shareholders an amount transferred from our capital surplus or legal reserve to our stated capital in the form of free shares. We must distribute such free shares to all our shareholders in proportion to their existing shareholdings.

Preemptive Rights and Issuance of Additional Shares

We may at times issue authorized but unissued shares, unless otherwise provided in the Korean Commercial Code, on terms determined by our board of directors. All our shareholders are generally entitled to subscribe to any newly-issued shares in proportion to their existing shareholdings. We must offer new shares on uniform terms to all shareholders who have preemptive rights and are listed on our shareholders’ registry as of the relevant record date. We must give public notice of the preemptive rights regarding new shares and their transferability at least two weeks before the relevant record date. Our board of directors may determine how to distribute shares for which preemptive rights have not been exercised or where fractions of shares occur.

Under the Korean Commercial Code and our articles of incorporation, we may issue new shares pursuant to a board resolution to persons other than existing shareholders only if (1) the new shares are issued for the purpose of issuing depositary receipts in accordance with the relevant regulations or through an offering to public investors and (2) the purpose of such issuance is deemed necessary by us to achieve a business purpose, including, but not limited to, the introduction of new technology or the improvement of our financial condition. Under our articles of incorporation, only our board of directors is authorized to set the terms and conditions with respect to such issuance of new shares.

In addition, under our articles of incorporation, we may issue convertible bonds or bonds with warrants, each up to an aggregate principal amount of Won 400 billion, to persons other than existing shareholders, where such issuance is deemed necessary by us to achieve a business purpose, including, but not limited to, the introduction of new technology or the improvement of our financial condition.

Members of our employee stock ownership association, whether or not they are our shareholders, generally have a preemptive right to subscribe for up to 20.0% of the shares publicly offered pursuant to the Financial Investment Services and Capital Markets Act. This right is exercisable only to the extent that the total number of shares so acquired and held by members of our employee stock ownership association does not exceed 20.0% of the sum of the number of shares then outstanding and the number of newly-issued shares. As of March 31, 2010, approximately 0.6% of the issued shares were held by members of our employee stock ownership association.

General Meeting of Shareholders

We generally hold the annual general meeting of shareholders within three months after the end of each fiscal year. Subject to a board resolution or court approval, we may hold an extraordinary general meeting of shareholders:

•	as necessary;
•	at the request of holders of an aggregate of 3.0% or more of our
outstanding common shares;
•	at the request of shareholders holding an aggregate of 1.5% or
more of our outstanding shares and preferred shares for at least
six months; or
•	at the request of our audit committee.

Holders of non-voting preferred shares may request a general meeting of shareholders only after the non-voting shares become entitled to vote or “enfranchised,” as described under “— Voting Rights” below.

We must give shareholders written notice setting out the date, place and agenda of the meeting at least two weeks before the date of the general meeting of shareholders. However, for holders of less than 1.0% of the total number of issued and outstanding voting shares, we may give notice by placing at least two public notices in at least two daily newspapers at least two weeks in advance of the meeting. Currently, we use The Korea Economic Daily News and Mail Business Newspaper, both published in Seoul, for this purpose. Shareholders who are not on the shareholders’ registry as of the record date are not entitled to receive notice of the general meeting of shareholders or

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attend or vote at the meeting. Holders of non-voting preferred shares, unless enfranchised, are not entitled to receive notice of or vote at general meetings of shareholders.

Our general meetings of shareholders have historically been held in or near Seoul.

Voting Rights

Holders of our common shares are entitled to one vote for each common share, except that voting rights of common shares held by us (including treasury shares and shares held by bank trust funds controlled by us), or by a corporate shareholder in which we own more than 10% equity interest, either directly or indirectly, may not be exercised. The Korean Commercial Code, unless otherwise stated in the articles of incorporation, permits cumulative voting, which would allow each shareholder to have multiple voting rights corresponding to the number of directors to be appointed in the voting and to exercise all voting rights cumulatively to elect one director. Our articles of incorporation do not permit cumulative voting for the election of directors.

Our shareholders may adopt resolutions at a general meeting by an affirmative majority vote of the voting shares present or represented at the meeting if such affirmative votes also represent at least one-fourth of our total voting shares then issued and outstanding. However, under the Korean Commercial Code and our articles of incorporation, the following matters, among others, require approval by the holders of at least two-thirds of the voting shares present or represented at a meeting, and such affirmative votes must also represent at least one-third of our total voting shares then issued and outstanding:

•	amending our articles of incorporation;
•	removing a director;
•	effecting any dissolution, merger or consolidation of us;
•	transferring the whole or any significant part of our business;
•	effecting our acquisition of all of the business of any other
company or a part of the business of any other company having a
material effect on our business;
•	reducing our capital; or
•	issuing any new shares at a price lower than their par value.

In general, holders of non-voting preferred shares are not entitled to vote on any resolution or receive notice of any general meeting of shareholders.

However, in case of amendments to our articles of incorporation, or any merger or consolidation of us, or in some other cases which affect the rights or interests of the non-voting preferred shares, approval of the holders of non-voting preferred shares is required. We may obtain the approval by a resolution of holders of at least two-thirds of the non-voting preferred shares present or represented at a class meeting of the holders of non-voting preferred shares, where the affirmative votes also represent at least one-third of our total issued and outstanding non-voting shares. In addition, if we are unable to pay dividends on non-voting preferred shares as provided in our articles of incorporation, the holders of non-voting shares will become enfranchised and will be entitled to exercise voting rights beginning at the next general meeting of shareholders to be held after the declaration of non-payment of dividends is made until such dividends are paid. The holders of enfranchised non-voting preferred shares will have the same rights as holders of common shares to request, receive notice of, attend and vote at a general meeting of shareholders.

Shareholders may exercise their voting rights by proxy. A shareholder may give proxies only to another shareholder, except that a corporate shareholder may give proxies to its officers or employees.

Holders of ADRs exercise their voting rights through the ADR depositary, an agent of which is the record holder of the underlying common shares. Subject to the provisions of the deposit agreement, ADR holders are entitled to instruct the ADR depositary how to vote the common shares underlying their ADSs.

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Limitation on Shareholdings

The Telecommunications Business Act prohibits foreign governments, individuals, and entities (including Korean entities that are deemed foreigners, as discussed below) from owning more than 49% of our voting stock. Korean entities whose largest shareholder is a foreign government or a foreigner (together with any of its related parties) that owns 15% or more of such Korean entities’ outstanding voting stock are deemed foreigners. A foreigner who has acquired shares of our voting stock in excess of such limitation may not exercise the voting rights with respect to the shares exceeding such limitation and may be subject to the KCC’s corrective orders.

Rights of Dissenting Shareholders

Under Financial Investment Services and Capital Market Act, in some limited circumstances, including the transfer of all or a significant part of our business or our merger or consolidation with another company (with certain exceptions), dissenting shareholders have the right to require us to purchase their shares. To exercise this right, shareholders, including holders of non-voting shares, must submit to us a written notice of their intention to dissent before the general meeting of shareholders. Then, within 20 days after the relevant resolution is passed at a meeting, the dissenting shareholders must request us in writing to purchase their shares. We are obligated to purchase the shares of such dissenting shareholders within one month after the expiration of the 20-day period. The purchase price for the shares is required to be determined through negotiation between the dissenting shareholders and us. If we cannot agree on a price through negotiation, the purchase price will be the average of (1) the weighted average of the daily share prices on the KRX KOSPI Market for the two-month period before the date of the adoption of the relevant board resolution, (2) the weighted average of the daily share price on the KRX KOSPI Market for the one month period before the date of the adoption of the relevant resolution and (3) the weighted average of the daily share price on the KRX KOSPI Market for the one week period before the date of the adoption of the relevant resolution. However, a court may determine the purchase price if we or dissenting shareholders do not accept the purchase price.

Registry of Shareholders and Record Dates

Our transfer agent, Kookmin Bank, maintains the register of our shareholders at its office in Seoul, Korea. It records and registers transfers of shares on the register of shareholders upon presentation of the share certificates.

The record date for annual dividends is December 31. For the purpose of determining the shareholders entitled to annual dividends, the registry of shareholders is closed for the period from January 1 to January 31 of the following year. Further, for the purpose of determining the shareholders entitled to some other rights pertaining to the shares, we may, on at least two weeks’ public notice, set a record date and/or close the register of shareholders for not more than three months. The trading of shares and the delivery of share certificates may continue while the register of shareholders is closed.

Annual Report

At least one week before the annual general meeting of shareholders, we must make our annual reports and audited non-consolidated financial statements available for inspection at our principal office and at all of our branch offices. In addition, copies of annual reports, the audited non-consolidated financial statements and any resolutions adopted at the general meeting of shareholders will be available to our shareholders.

Under the Financial Investment Services and Capital Markets Act, we must file with the Financial Services Commission of Korea and the Korea Exchange (1) an annual securities report within 90 days after the end of our fiscal year, (2) a mid-year report within 45 days after the end of the first six months of our fiscal year, and (3) quarterly reports within 45 days after the end of the third month and the ninth month of our fiscal year. Copies of these reports are or will be available for public inspection at the Financial Services Commission of Korea and the Korea Exchange.

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Transfer of Shares

Under the Korean Commercial Code, the transfer of shares is effected by the delivery of share certificates. However, to assert shareholders’ rights against us, the transferee must have his or her name, seal and address registered on our registry of shareholders, maintained by our transfer agent. A non-Korean shareholder may file a sample signature in place of a seal, unless he or she is a citizen of a country with a sealing system similar to that of Korea. In addition, a non-resident shareholder must appoint an agent in Korea authorized to receive notices on his or her behalf and file his or her mailing address in Korea.

Under current Korean regulations, the Korea Securities Depository, foreign exchange banks (including domestic branches of foreign banks), financial investment companies with a dealing, brokerage or collective investment license and internationally recognized custodians may act as agents and provide related services for foreign shareholders. Certain foreign exchange controls and securities regulations apply to the transfer of shares by non-residents or non-Korean citizens. See “Item 10.D. Exchange Controls — Korean Foreign Exchange Controls and Securities Regulations”.

Our transfer agent is Kookmin Bank, located at 24-3, Yoido-dong, Yongdungpo-ku, Seoul, Korea.

Restrictions Applicable to Shares

Pursuant to the Telecommunications Business Act, the maximum aggregate foreign shareholding in us is limited to 49.0%. See “Item 4.B. Business Overview — Law and Regulation — Foreign Ownership and Investment Restrictions and Requirements”. In addition, certain foreign exchange controls and securities regulations apply to the acquisition of securities by non-residents or non-Korean citizens. See “Item 10.D. Exchange Controls — Korean Foreign Exchange Controls and Securities Regulations”.

Acquisition of Shares by Us

We generally may not acquire our own shares except in certain limited circumstances, including a reduction in capital. Under the Korean Commercial Code, except in the case of a reduction of capital, any shares acquired by us must be sold or otherwise transferred to a third party within a reasonable time.

Notwithstanding the foregoing restrictions, pursuant to the Financial Investment Services and Capital Markets Act, a listed company may acquire its shares of common stock through purchases on the Korea Exchange or through a tender offer or pursuant to trust agreements with financial investment companies with a trust license. The aggregate purchase price for the common shares may not exceed the total distributable dividends. According to the Korean Commercial Code, the total distributable dividend is defined as the net income for the current fiscal year plus retained earnings carried over from previous years (or minus accumulated losses, as the case may be), reduced by the amount of earnings surplus reserved pursuant to the applicable provisions of the Korean Commercial Code.

In general, corporate entities in which we own a 50% or more equity interest may not acquire our common stock. In October 2001, in accordance with the approval of our board of directors, we established trust funds with four Korean banks with a total funding of Won 1.3 trillion for the purpose of acquiring our shares at market prices or within a range of five percent of market prices. In October 2007, in accordance with the approval of our board of directors, we extended the terms of such trust funds until October 2010, but the total amount of funding was reduced to Won 982 billion. In October 2010, upon expiration of the terms of the trust funds, our shares held by the trust funds were transferred to us and are currently held by us as treasury shares. For more details on the trust funds, see “Item 5.B. Liquidity and Capital Resources”.

Liquidation Rights

In the event of our liquidation, remaining assets after payment of all debts, liquidation expenses and taxes will be distributed among shareholders in proportion to their shareholdings. Holders of non-voting shares have no preference in liquidation. Holders of debt securities have no preference over other creditors in the event of liquidation.

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Description of American Depositary Shares

The following is a summary of the deposit agreement dated as of May 31, 1996, as amended by amendment no. 1 dated as of March 15, 1999, amendment no. 2 dated as of April 24, 2000 and amendment no. 3 dated as of July 24, 2002, among us, Citibank, N.A., as ADR depositary, and all holders and beneficial owners of ADSs, as supplemented by side letters dated as of July 25, 2002, October 1, 2002 and October 1, 2007. The deposit agreement is governed by the laws of the State of New York. Because it is a summary, this description does not contain all the information that may be important to you. For more complete information, you should read the entire deposit agreement and the ADR. The deposit agreement has been filed as an exhibit to our registration statement on Form F-3 (File No. 333-91304) filed with the SEC. Copies of the deposit agreement are available for inspection at the principal New York office of the ADR depositary, currently located at 388 Greenwich Street, 14th Floor, New York, New York 10013, United States of America, and at the principal London office of the ADR depositary, currently located at Canada Square, Canary Wharf, London, E14 5LB, England.

American Depositary Receipts

The ADR depositary may execute and deliver ADRs evidencing the ADSs. Each ADR evidences a specified number of ADSs, each ADS representing one-ninth of one share of our common stock to be deposited with the ADR depositary’s custodian in Seoul. Korea Securities Depository is the institution authorized under applicable law to effect book-entry transfers of our common shares, known as the “Custodian”. The Custodian is located at 1328 Paeksok-Dong, Ilsan-Ku, Koyang, 411-770, Kyunggi-Do, Seoul, 150-884, Korea. An ADR may represent any number of ADSs. We and the ADR depositary will treat only persons in whose names ADRs are registered on the books of the registrar as holders of ADRs.

Deposit and Withdrawal of Shares of Common Stock

Notwithstanding the provisions described below, under the terms of the deposit agreement, the deposit of shares and issuance of ADSs may only be made if the total number of shares represented by ADSs after such deposit does not exceed a specified maximum, 24,321,893 shares as of June 1, 2011. This limit will be adjusted in certain circumstances, including (1) upon the cancellation of existing ADSs, (2) upon future offerings of ADSs by us or our shareholders, (3) rights offerings and (4) adjustments for share reclassifications. The limit also may be decreased in certain circumstances. As of June 1, 2011, the outstanding ADSs represented approximately 24,321,893 shares of our common stock. Notwithstanding the foregoing, the ADR depositary and the Custodian may not accept deposits of shares of common stock for issuance of ADSs if it has been notified by us in writing that we block deposits to prevent a violation of applicable Korean laws or regulations or a violation of our articles of incorporation. In addition, the ADR depositary may not accept deposits of shares of common stock for issuance of ADSs from a person who identifies him-, her- or itself to the depositary, and has been identified in writing by us, as a holder of at least 3% of our shares of common stock.

The shares of common stock underlying the ADSs are delivered to the ADR depositary’s Custodian in book-entry form. Accordingly, no share certificates will be issued but the ADR depositary will hold the shares of common stock through the book-entry settlement system of the Custodian. The delivery of the shares of common stock pursuant to the deposit agreement will take place through the facilities of the Custodian in accordance with its applicable settlement procedures. The ADR depositary will execute and deliver ADSs if you or your broker deposit shares or evidence of rights to receive shares of common stock with the Custodian. Upon payment of fees and expenses and any taxes or charges, such as stamp taxes or stock transfer taxes, the ADR depositary will register the appropriate number of ADSs in the names you designate. The ADR depositary and the ADR depositary’s Custodian will refuse to accept shares of common stock for deposit whenever we restrict transfer of shares of common stock to comply with ownership restrictions under applicable law or our articles of incorporation or whenever the deposit would cause the total number of shares of common stock deposited to exceed a level we determine from time to time. We may instruct the ADR depositary to take certain actions with respect to a holder of ADSs who holds in excess of the ownership limitation set forth in the deposit agreement, including the mandatory sale or disposition of the shares represented by the ADSs in excess of such ownership limitations if, and to the extent, permitted by applicable law.

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You may surrender your ADRs to the ADR depositary to withdraw the underlying shares of our common stock. Upon payment of the fees and any governmental charges and taxes provided in the deposit agreement, and subject to applicable laws and regulations of Korea and our articles of incorporation, you will be entitled to physical delivery or electronic delivery to an account in Korea or, if permissible under applicable Korean law, outside the United States, of the shares of common stock evidenced by the ADRs and any other property at the time represented by ADR you surrendered. If you surrender an ADR evidencing a number of ADSs not evenly divisible by nine, the ADR depositary will deliver the appropriate whole number of shares of common stock represented by the surrendered ADSs and will execute and deliver to you a new ADR evidencing ADSs representing any remaining fractional shares of common stock.

If you request withdrawal of shares of common stock, you must deliver to the ADR depositary a written order directing the ADR depositary to cause the shares of common stock being withdrawn to be delivered or to cause such delivery upon the written order of the person designated in your order, subject to applicable Korean laws and the provisions of the deposit agreement.

Under the provisions of the deposit agreement, the ADR depositary may not lend shares of common stock or ADSs. However, subject to the provisions of the deposit agreement and limitations established by the ADR depositary, the ADR depositary may execute and deliver ADSs before deposit of the underlying shares of common stock. This is called a pre-release of the ADS. The ADR depositary may also deliver shares of common stock upon cancellation of pre-released ADSs (even if the cancellation occurs before the termination of the pre-release). The ADR depositary may pre-release ADSs only under the following circumstances:

| • | before or at the time of the pre-release, the person to whom the
pre-release is being made must represent to the ADR depositary
in writing that the person, or, in case of an institution its
customer, owns the shares of common stock or ADSs to be
deposited and show evidence of the ownership to the ADR
depositary’s satisfaction; |
| --- | --- |
| • | before or at the time of such pre-release, the person to whom
the pre-release is being made must agree in writing that he or
she will hold the shares of common stock or ADSs in trust for
the ADR depositary until their delivery to the ADR depositary or
Custodian, reflect on his or her records the ADR depositary as
owner of such shares of common stock or ADSs and deliver such
shares of common stock upon the ADR depositary’s request; |
| • | the pre-release must be fully collateralized with cash or
U.S. government securities; |
| • | the ADR depositary must be able to terminate the pre-release on
not more than five business day’s notice; and |
| • | the pre-release is subject to further indemnities and credit
regulations as the ADR depositary deems appropriate. |

The ADR depositary may retain for its own account any compensation received by it in connection with the pre-release, such as earnings on the collateral.

If you want to withdraw the shares of common stock from the depositary facility, you must register your identity with the Financial Supervisory Service of Korea before you acquire the shares of common stock unless you intend to sell the shares of common stock within three months. See “Item 10.D. Exchange Controls — Korean Foreign Exchange Controls and Securities Regulations — Restrictions Applicable to Shares”.

Dividends, Other Distributions and Rights

If the ADR depositary can, in its judgment and pursuant to applicable law, convert Won (or any other foreign currency) into Dollars on a reasonable basis and transfer the resulting Dollars to the United States, the ADR depositary will as promptly as practicable convert all cash dividends and other cash distributions received by it on the deposited shares of common stock into Dollars and distribute the Dollars to you in proportion to the number of ADSs representing shares of common stock held by you, after deduction of the fees and expenses of the ADR depositary. If the ADR depositary determines that in its judgment any currency other than Dollars it receives from us cannot be converted and distributed on a reasonable basis, the ADR depositary may distribute the currency it

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receives to the extent permitted under applicable law or hold the currency for your account if you are entitled to receive the distribution. The ADR depositary will not be liable for any interest. Before making a distribution, the ADR depositary will deduct any withholding taxes that must be paid.

In the event that the ADR depositary or the ADR depositary’s Custodian receives any distribution upon any deposited shares of common stock in property or securities (other than shares of common stock, non-voting preferred stock or rights to receive shares of common stock or non-voting preferred stock), the ADR depositary will distribute the property or securities to you in proportion to your holdings in any manner that the ADR depositary deems, after consultation with us, equitable and practicable. If the ADR depositary determines that any distribution of property or securities (other than shares of common stock, non-voting preferred stock or rights to receive shares of common stock or non-voting preferred stock) cannot be made proportionally, or if for any other reason the ADR depositary deems the distribution not to be feasible, the ADR depositary may, after consultation with us, dispose of all or a portion of the property or securities in such amounts and in such manner, including by public or private sale, as the ADR depositary deems equitable or practicable. The ADR depositary will distribute to you the net proceeds of any such sale, or the balance of the property or securities, after the deduction of the fees and expenses of the ADR depositary.

If a distribution by us consists of a dividend in, or free distribution of, our shares of common stock, the ADR depositary may, with our approval, and will, if we request, deposit the shares of common stock and either (1) distribute to you, in proportion to your holdings, additional ADSs representing those shares of common stock, or (2) reflect on the records of the ADR depositary the increase in the aggregate number of ADSs representing those number of shares of common stock, in both cases, after the deduction of the fees and expenses of the ADR depositary. If the ADR depositary deems that such distribution for any reason is not feasible, the ADR depositary may adopt, after consultation with us, any method as it may deem equitable and practicable, including by public or private sale of all or part of the shares of common stock received. The ADR depositary will distribute to you the net proceeds of any such sale in the same way as it does with cash. The ADR depositary will only distribute whole ADSs. If the ADR depositary does not distribute additional ADSs, then each outstanding ADS will also represent the new shares so distributed.

If a distribution by us consists of a dividend in, or free distribution of, shares of non-voting preferred stock, the ADR depositary will deposit such shares of non-voting preferred stock under a non-voting preferred stock deposit agreement to be entered into among us, the ADR depositary and all holders and beneficial owners of depositary shares. The ADR depositary will deliver to you, in proportion to your holdings of ADSs, depositary shares issued under the non-voting preferred stock deposit agreement representing the number of non-voting shares received as such dividend or distribution. If the ADR depositary deems such distribution for any reason is not feasible, the ADR depositary may adopt, after consultation with us, any method as it may deem equitable and practicable, including by public or private sale of all or part of the nonvoting shares received. The ADR depositary will distribute to you the net proceeds of any such sale in the same way as it does with cash. The ADR depositary will only distribute whole depositary shares. We are not obligated to list depositary shares representing non-voting shares on any exchange.

If we offer holders of our securities any rights to subscribe for additional shares of common stock or any other rights, the ADR depositary may make these rights available to you. The ADR depositary must first determine whether it is lawful and feasible to do so. If the ADR depositary determines that it is not lawful or feasible to make these rights available to you, then upon our request, the ADR depositary will sell the rights and distribute the proceeds in the same way as it would do with cash. The ADR depositary may allow these rights that are not distributed or sold to lapse. In that case, you will receive no value for these rights.

If we issue any rights with respect to non-voting shares, the securities issuable upon any exercise of such rights by holders or beneficial owners will be depositary shares representing those non-voting shares issued under the provisions of a non-voting preferred stock deposit agreement.

If a registration statement under the Securities Act is required with respect to the securities to which any rights relate in order for us to offer the rights to you and to sell the securities represented by these rights, the ADR depositary will not offer such rights to you until such a registration is in effect, or unless the offering and sale of such securities and such rights to you are exempt from the registration requirements of the Securities Act or any required filing, report, approval or consent has been submitted, obtained or granted. We or the ADR depositary will not be

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obligated to register the rights or securities under the Securities Act or to submit, obtain or request any filing, report, approval or consent.

The ADR depositary may not be able to convert any currency or to sell or dispose of any distributed or offered property or rights in a timely manner or at a specified price, or at all.

Record Dates

The ADR depositary will fix a record date, after consultation with us, in each of the following situations:

•	any cash dividend or other cash distribution becomes payable;
•	any distribution other than cash is made;
•	rights are issued with respect to deposited shares of common
stock;
•	the ADR depositary causes a change in the number of shares of
common stock that are represented by each ADS; or
•	the ADR depositary receives notice of any shareholders’
meeting.

The record date will, to the extent practicable, be as near as the record date fixed by us for the shares of common stock. The record date will determine (1) the ADR holders who are entitled to receive the dividend, distribution or rights, or the net proceeds of the sale of the rights; or (2) the ADR holders who are entitled to receive notices or exercise rights.

Voting of the Underlying Shares of Common Stock

We will give the ADR depositary a notice of any meeting or solicitation of shareholder proxies immediately after we finalize the form and substance of such notice but not less than 14 days before the meeting. As soon as practicable after it receives our notice, the ADR depositary will fix a record date, and upon our written request, the ADR depositary will mail to you a notice that will contain the following:

| • | the information contained in our notice to the ADR depositary
including an English translation, or, if requested by us, a
summary of the information provided by us; |
| --- | --- |
| • | a statement that the ADR holders as of the close of business on
a specified record date will be entitled to instruct the ADR
depositary as to how to exercise their voting rights for the
number of shares of deposited shares of common stock, subject to
the provisions of applicable Korean law and our articles of
incorporation, which provisions, if any, will be summarized in
the notice to the extent that they are material; and |
| • | a statement as to the manner in which the ADR holders may give
their instructions. |

Upon your written request received on or before the date set by the ADR depositary for this purpose, the ADR depositary will endeavor, in so far as practicable, to vote or cause to be voted the deposited shares of common stock in accordance with the instructions set forth in your written requests. The ADR depositary may not itself exercise any voting discretion over any deposited shares of common stock. You may only exercise the voting rights in respect of nine ADSs or multiples of nine ADSs. ADR holders may not be entitled to give instruction to vote the shares represented by the ADSs if, and to the extent, the total number of shares represented by the ADSs of an ADR holder exceeds the limit set under applicable law. We can give no assurance to you, however, that we will notify the ADR depositary sufficiently in advance of the scheduled date of a meeting or solicitation of consents or proxies to enable the ADR depositary to make a timely mailing of notices to you, or that you will receive the notices sufficiently in advance of a meeting or solicitation of consents or proxies to give instructions to the ADR depositary.

Inspection of Transfer Books

The ADR depositary will keep books at its principal New York office, which is currently located at 388 Greenwich Street, 14th Floor, New York, New York 10013, for the registration and transfer of ADRs. You may inspect the books of the ADR depositary as long as the inspection is not for the purpose of communicating with

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holders in the interest of a business or object other than our business or a matter related to the deposit agreement or the ADRs.

Reports and Notices

On or before the first date on which we give notice, by publication or otherwise, of any meeting of shareholders, or of any adjourned meeting of shareholders, or of the taking of any action in respect of any cash or other distributions or the offering of any rights in respect of the shares of common stock, we will transmit to the Custodian and the ADR depositary sufficient copies of the notice in English in the form given or to be given to shareholders. We will furnish to the ADR depositary English language versions of any reports, notices and other communications that we generally transmit to holders of our common stock, including our annual reports, with annual audited consolidated financial statements prepared in conformity with Korean GAAP and, if prepared pursuant to the Securities Exchange Act of 1934, as amended, a reconciliation of net earnings for the year and stockholders’ equity to U.S. GAAP, and unaudited non-consolidated semiannual financial statements prepared in conformity with Korean GAAP. The ADR depositary will arrange for the prompt mailing of copies of these documents, or, if we request, a summary of any such notice provided by us to you or, at our request, make notices, reports (other than the annual reports and semiannual financial statements) and other communications available to you on a basis similar to that for the holders of our common stock or on such other basis as we may advise the ADR depositary according to any applicable law, regulation or stock exchange requirement.

Notices to you under the deposit agreement will be deemed to have been duly given if personally delivered or sent by mail or cable, telegraph or facsimile transmission, confirmed by letter, addressed to you at your address as it appears on the transfer books of the ADR depositary or at such other address as you have notified the ADR depositary.

In addition, the ADR depositary will make available for inspection by holders at its principal New York office and its principal London office any notices, reports or communications, including any proxy soliciting materials, received from us that we generally transmit to the holders of our common stock or other deposited securities, including the ADR depositary. The ADR depositary will also send to you copies of reports and communications we will provide as provided in the deposit agreement.

Changes Affecting Deposited Shares of Common Stock

In case of a change in the par value, or a split-up, consolidation or any other reclassification of shares of our common stock or upon any recapitalization, reorganization, merger or consolidation or sale of assets affecting us, any securities received by the ADR depositary or the Custodian in exchange for, in conversion of or in respect of deposited shares of our common stock will be treated as new deposited shares of common stock under the deposit agreement. In that case, ADSs will, subject to the terms of the deposit agreement and applicable laws and regulations, including any registration requirements under the Securities Act, represent the right to receive the new deposited shares of common stock, unless additional ADRs are issued, as in the case of a stock dividend, or unless the ADR depositary calls for the surrender of outstanding ADRs to be exchanged for new ADRs.

Amendment and Termination of the Deposit Agreement

We may agree with the ADR depositary to amend the deposit agreement and the ADSs without your consent for any reason. If the amendment adds or increases fees or charges, except for taxes and other governmental charges or certain expenses of the ADR depositary, or prejudices any substantial existing right of ADR holders, it will only become effective 30 days after the ADR depositary notifies you of the amendment. If you continue to hold your ADSs at the time an amendment becomes effective, you will be considered to have agreed to the amendment and to be bound by the deposit agreement as amended. Except as otherwise required by any mandatory provisions of applicable law, no amendment may impair your right to surrender your ADSs and to receive the underlying deposited securities.

The ADR depositary will terminate the deposit agreement if we ask it to do so with 90 days’ prior written notice. The ADR depositary may also terminate the deposit agreement if the ADR depositary has notified us at least

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90 days in advance that it would like to resign and we have not appointed a new depositary. In both cases, the ADR depositary must notify you at least 30 days before the termination date.

If any ADRs remain outstanding after the date of termination, the ADR depositary will stop performing any further acts under the deposit agreement, except:

| • | to collect dividends and other distributions pertaining to the
deposited shares of common stock; |
| --- | --- |
| • | to sell property and rights and the conversion of deposited
shares of common stock into cash as provided in the deposit
agreement; and |
| • | to deliver deposited shares of common stock, together with any
dividends or other distributions received with respect to the
deposited shares of common stock and the net proceeds of the
sale of any rights or other property represented by those ADSs
in exchange for surrendered ADRs. |

At any time after the expiration of six months from the date of termination, the ADR depositary may sell any remaining deposited shares of common stock and hold uninvested the net proceeds in an unsegregated account, together with any other cash or property then held, without liability for interest, for the pro rata benefit of the holders of ADSs that have not been surrendered by then.

Charges of ADR Depositary

The fees and expenses of the ADR depositary as agreed between us and the ADR depositary include:

•	taxes and other governmental charges;
•	registration fees applicable to transfers of shares of common
stock on our shareholders’ register, or that of any entity
acting as registrar for the shares, to the name of the ADR
depositary or its nominee, or the Custodian or its nominee, when
making deposits or withdrawals under the deposit agreement;
•	cable, telegraph and facsimile transmission expenses that are
expressly provided in the deposit agreement;
•	expenses incurred by the ADR depositary in the conversion of
foreign currency into Dollars under the deposit agreement;
•	a fee of up to US$5.00 per 100 ADSs, or portion thereof, for
execution and delivery of ADSs and the surrender of ADRs under
the deposit agreement; and
•	a fee of up to US$0.02 per ADS held for cash distributions, a
sale or exercise of rights or the taking of any other corporate
action involving distributions to shareholders.

For a detailed description of fees and charges payable by the holders of ADSs under the deposit agreement, see “Item 12.D. American Depositary Shares — Fees and Charges under the Deposit Agreement”.

General

Neither we nor the ADR depositary will be liable to you if prevented or delayed by law, governmental authority, any provision of our articles of incorporation or any circumstances beyond our or its control in performing our or its obligations under the deposit agreement. The deposit agreement provides that the ADR depositary will hold the shares of common stock for your sole benefit. Our obligations and those of the ADR depositary under the deposit agreement are expressly limited to performing, in good faith and without negligence, our and its respective duties specified in the deposit agreement.

The ADSs are transferable on the books of the ADR depositary, provided that the ADR depositary may, after consultation with us, close the transfer books at any time or from time to time, when deemed expedient by it in connection with the performance of its duties. As a condition precedent to the execution and delivery of any ADSs, registration of transfer, split-up, combination of any ADR or surrender of any ADS for the purpose of withdrawal of deposited shares of common stock, the ADR depositary or the Custodian may require payment from the depositor of the shares of common stock or a holder of ADSs of a sum sufficient to reimburse the ADR depositary for any tax or

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other governmental charge and any stock transfer or registration fee and payment of any applicable fees payable by the holders of ADSs.

Any person depositing shares of common stock, any holder of an ADS or any beneficial owner may be required from time to time to file with the ADR depositary or the Custodian a proof of citizenship, residence, exchange control approval, payment of applicable Korean or other taxes or governmental charges, or legal or beneficial ownership and the nature of their interest, to provide information relating to the registration on our shareholders’ register (or our appointed agent for the transfer and registration of shares of common stock) of the shares of common stock presented for deposit or other information, to execute certificates and to make representations and warranties as we or the ADR depositary may deem necessary or proper or to enable us or the ADR depositary to perform our and its obligations under the deposit agreement. The ADR depositary may withhold the execution or delivery or registration of transfer of all or part of any ADR or the distribution or sale of any dividend or other distribution of rights or of the proceeds from their sale or the delivery of any shares deposited under the deposit agreement and any other securities, property and cash received by the ADR depositary or the Custodian until the proof or other information is filed or the certificates are executed or the representations and warranties are made. The ADR depositary shall provide us, unless otherwise instructed by us, in a timely manner, with copies of any of these proofs and certificates and these written representations and warranties.

The delivery and surrender of ADSs and transfer of ADSs generally may be suspended during any period when our or the ADR depositary’s transfer books are closed or, if that action is deemed necessary or advisable by us or the ADR depositary, at any time or from time to time in accordance with the deposit agreement. We may restrict, in a manner as we deem appropriate, transfers of shares of common stock where the transfers may result in ownership of shares of common stock in excess of limits under applicable law. Except as described in “Deposit and Withdrawal of Shares of Common Stock” above, notwithstanding any other provision of the deposit agreement, the surrender of outstanding ADRs and withdrawal of Deposited Securities (as defined in the deposit agreement) represented by the ADRs may be suspended, but only as required in connection with (1) temporary delays caused by closing the transfer books of the ADR depositary or the issuer of any Deposited Securities (or the appointed agent or agents for such issuer for the transfer and registration of such Deposited Securities) in connection with voting at a shareholders’ meeting or the payment of dividends, (2) payment of fees, taxes and similar charges, or (3) compliance with any United States or foreign laws or governmental regulations relating to the ADRs or to the withdrawal of the Deposited Securities.

Governing Law

The deposit agreement and the ADRs will be interpreted under, and all rights under the deposit agreement or the ADRs are governed by, the laws of the State of New York.

We have irrevocably submitted to the non-exclusive jurisdiction of New York State or United States Federal Courts located in New York City and waived any objection to legal actions or proceedings in these courts whether on the ground of venue or on the ground that the proceedings have been brought in an inconvenient forum.

This submission was made for the benefit of the ADR depositary and the holders and will not limit the right of any of them to take legal actions or proceedings in any other court of competent jurisdiction nor will the taking of legal actions or proceedings in one or more jurisdictions preclude the taking of legal actions or proceedings in any other jurisdiction (whether concurrently or not), to the extent permitted under applicable law.

Information Relating to the ADR Depositary

Citibank, N.A. has been appointed as ADR depositary pursuant to the deposit agreement. Citibank is an indirect wholly-owned subsidiary of Citigroup Inc., a Delaware corporation whose principal office is located in New York, New York. Citibank is a global financial services organization serving individuals, businesses, governments and financial institutions in approximately 100 countries around the world.

Citibank was originally organized on June 16, 1812, and now is a national banking association organized under the National Bank Act of 1864 of the United States of America. Citibank is primarily regulated by the United States Office of the Comptroller of the Currency. Its principal office is at 399 Park Avenue, New York, NY 10022.

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The consolidated balance sheets of Citibank are set forth in Citigroup’s most recent annual report on Form 10-K and quarterly report on Form 10-Q, each on file with the SEC.

Citibank’s Articles of Association and By-laws, each as currently in effect, together with Citigroup’s most recent annual and quarterly reports will be available for inspection at the Depositary Receipt office of Citibank, N.A., 388 Greenwich Street, 14th Floor, New York, New York 10013.

Item 10.C. Material Contracts

We have not entered into any material contracts since January 1, 2008, other than in the ordinary course of our business. For information regarding our agreements and transactions with entities affiliated with the SK Group, see “Item 7.B. Related Party Transactions” and note 24 of the notes to our consolidated financial statements. For a description of certain agreements entered into during the past three years related to our capital commitments and obligations, see “Item 5B. Liquidity and Capital Resources”.

Item 10.D. Exchange Controls

Korean Foreign Exchange Controls and Securities Regulations

General

The Foreign Exchange Transaction Act and the Presidential Decree and regulations under that Act and Decree, collectively referred to as the Foreign Exchange Transaction Laws, regulate investment in Korean securities by non-residents and issuance of securities outside Korea by Korean companies. Non-residents may invest in Korean securities pursuant to the Foreign Exchange Transaction Laws. The Financial Services Commission of Korea has also adopted, pursuant to its authority under the Financial Investment Services and Capital Markets Act, regulations that restrict investment by foreigners in Korean securities and regulate issuance of securities outside Korea by Korean companies.

Subject to certain limitations, the MOSF has authority to take the following actions under the Foreign Exchange Transaction Laws:

| • | if the Government deems it necessary on account of war, armed
conflict, natural disaster or grave and sudden and significant
changes in domestic or foreign economic circumstances or similar
events or circumstances, the MOSF may temporarily suspend
performance under any or all foreign exchange transactions, in
whole or in part, to which the Foreign Exchange Transaction Laws
apply (including suspension of payment and receipt of foreign
exchange) or impose an obligation to deposit, safe-keep or sell
any means of payment to The Bank of Korea or certain other
governmental agencies or financial institutions; and |
| --- | --- |
| • | if the Government concludes that the international balance of
payments and international financial markets are experiencing or
are likely to experience significant disruption or that the
movement of capital between Korea and other countries are likely
to adversely affect the Won, exchange rate or other
macroeconomic policies, the MOSF may take action to require any
person who intends to effect or effects a capital transaction to
deposit all or a portion of the means of payment acquired in
such transactions with The Bank of Korea or certain other
governmental agencies or financial institutions. |

Under the regulations of the Financial Services Commission amended on February 4, 2009, (i) if a company listed on the KRX KOSPI Market or a company listed on the KRX KOSDAQ Market has submitted a public disclosure of material matters to a foreign financial investment supervisory authority pursuant to the laws of the foreign jurisdiction, then it must submit a copy of the public disclosure and a Korean translation thereof to the Financial Services Commission of Korea and the Korea Exchange, and (ii) if a KRX KOSPI Market-listed company or KRX KOSDAQ Market-listed company is approved for listing on a foreign stock market or determined to be de-listed from the foreign stock market or actually listed on, or de-listed from a foreign stock market, then it must submit a copy of any document, which it submitted to or received from the relevant foreign government, foreign financial investment supervisory authority or the foreign stock market, and a Korean translation thereof to the Financial Services Commission of Korea and the Korea Exchange.

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Government Review of Issuances of ADSs

In order for us to issue ADSs in excess of US$30 million, we are required to submit a report to the MOSF with respect to the issuance of the ADSs prior to and after such issuance; provided that such US$30 million threshold amount would be reduced by the aggregate principal amount of any foreign currency loans borrowed, and any securities offered and issued, outside Korea during the one-year period immediately preceding the report’s submission date. The MOSF may at its discretion direct us to take necessary measures to avoid exchange rate fluctuation in connection with its acceptance of report of the issuance of the ADSs.

| • | Under current Korean laws and regulations, the depositary is
required to obtain our prior consent for any proposed deposit of
common shares if the number of shares to be deposited in such
proposed deposit exceeds the number of common shares initially
deposited by us for the issuance of ADSs (including deposits in
connection with the initial and all subsequent issuances of ADSs
by us or with our consent and stock dividends or other
distributions related to the ADSs). |
| --- | --- |
| • | In addition to such restrictions under Korean laws and
regulations, there are also restrictions on the deposits of our
common shares for issuance of ADSs. See “Item 10.B.
Memorandum and Articles of Incorporation — Description
of American Depositary Shares”. Therefore, a holder of ADRs
who surrenders ADRs and withdraws shares may not be permitted
subsequently to deposit those shares and obtain ADRs. |

We submitted a report to and obtained acceptance thereof by the MOSF for the issuance of ADSs up to an amount corresponding to 24,321,893 common shares. No additional Korean governmental approval is necessary for the issuance of ADSs except that if the total number of our common shares on deposit for conversion into ADSs exceeds 24,321,893 common shares, we may be required to file a report to and obtain acceptance thereof by the MOSF with respect to the increase of such limit and the issuance of additional ADSs.

Reporting Requirements for Holders of Substantial Interests

Under the Financial Investment Services and Capital Markets Act, any person whose direct or beneficial ownership of shares with voting rights, certificates representing the rights to subscribe for shares and equity-related debt securities including convertible bonds and bonds with warrants (collectively referred to as “equity securities”), together with the equity securities beneficially owned by certain related persons or by any person acting in concert with the person, accounts for 5.0% or more of the total outstanding equity securities is required to report the status and purpose (in terms of whether the purpose of shareholding is to affect control over management of the issuer) of the holdings to the Financial Services Commission of Korea and the Korea Exchange within five business days after reaching the 5.0% ownership interest threshold and promptly deliver a copy of such report to the issuer. In addition, any change (i) in the ownership interest subsequent to the report which equals or exceeds 1.0% of the total outstanding equity securities, or (ii) in the shareholding purpose is required to be reported to the Financial Services Commission of Korea and the Korea Exchange within five business days from the date of the change. However, reporting deadline of such reporting requirement is extended to (i) professional investors, as defined under the Financial Investment Services and Capital Markets Act, or (ii) persons who hold shares for purposes other than management control by the tenth day of the month immediately following the month of share acquisition or change in their shareholding. Those who reported the purpose of shareholding is to affect control over management of the issuer are prohibited from exercising their voting rights and acquiring additional shares for five days subsequent to the report under the Financial Investment Services and Capital Markets Act.

Violation of these reporting requirements may subject a person to criminal sanctions such as fines or imprisonment and may result in a loss of voting rights with respect to the ownership of unreported equity securities exceeding 5.0%. Furthermore, the Financial Services Commission of Korea may issue an order to dispose of such non-reported equity securities.

In addition to the reporting requirements described above, any person whose direct or beneficial ownership of our common shares accounts for 10% or more of the total issued and outstanding shares with voting rights (a “major shareholder”) must report the status of his or her shareholding to the Securities and Futures Commission and the Korea Exchange within five business days after he or she becomes a major shareholder. In addition, any change in the ownership interest subsequent to the report must be reported to the Securities and Futures Commission and the

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Korea Exchange by the fifth business day of any changes in his or her shareholding. Violations of these reporting requirements may subject a person to criminal sanctions, such as fines or imprisonment.

Restrictions Applicable to ADSs

No Korean governmental approval is necessary for the sale and purchase of ADSs in the secondary market outside Korea or for the withdrawal of shares underlying ADSs and the delivery of shares in Korea in connection with the withdrawal, provided that a foreigner who intends to acquire the shares must obtain an investment registration card from the Financial Supervisory Service, as described below. The acquisition of the shares by a foreigner must be reported by the foreigner or his or her standing proxy in Korea immediately to the Governor of the Financial Supervisory Service.

Persons who have acquired shares as a result of the withdrawal of shares underlying the ADSs may exercise their preemptive rights for new shares, participate in free distributions and receive dividends on shares without any further governmental approval.

In addition, we are required to file a securities registration statement with the Financial Services Commission and such securities registration statement has to become effective pursuant to the Financial Investment Services and Capital Markets Act in order for us to issue shares represented by ADSs, except in certain limited circumstances.

Restrictions Applicable to Shares

As a result of amendments to the Foreign Exchange Transaction Laws and the regulations of Financial Services Commission of Korea, together referred to as the Investment Rules, adopted in connection with the stock market opening from January 1992 and after that date, foreigners may invest, with limited exceptions and subject to procedural requirements, in all shares of Korean companies, whether listed on the KRX KOSPI Market or the KRX KOSDAQ Market, unless prohibited by specific laws. Foreign investors may trade shares listed on the KRX KOSPI Market or the KRX KOSDAQ Market only through the KRX KOSPI Market or the KRX KOSDAQ Market, except in limited circumstances, including, among others:

•	odd-lot trading of shares;
•	acquisition of shares by a foreign company as a result of a
merger;
•	acquisition or disposal of shares in connection with a tender
offer;
•	acquisition of shares by exercise of warrant, conversion right
under convertible bonds, exchange right under exchangeable bonds
or withdrawal right under depositary receipts issued outside of
Korea by a Korean company (“converted shares”);
•	acquisition of shares through exercise of rights under
securities issued outside of Korea;
•	acquisition of shares as a result of inheritance, donation,
bequest or exercise of shareholders’ rights, including
preemptive rights or rights to participate in free distributions
and receive dividends;
•	over-the-counter transactions between foreigners of a class of shares for which
the ceiling on aggregate acquisition by foreigners, as explained
below, has been reached or exceeded;
•	acquisition of shares by direct investment under the Foreign
Investment Promotion Law;
•	acquisition and disposal of shares on an overseas stock exchange
market, if such shares are simultaneously listed on the KRX
KOSPI Market or KRX KOSDAQ Market and such overseas stock
exchange; and
•	arm’s length transactions between foreigners in the event
all such foreigners belong to an investment group managed by the
same person.

For over-the-counter transactions of shares between foreigners outside the KRX KOSPI Market or the KRX KOSDAQ Market for shares with respect to which the limit on aggregate foreign ownership has been reached or exceeded, a financial investment company with a brokerage license in Korea must act as an intermediary. Odd-lot trading of shares outside the KRX KOSPI Market or the KRX KOSDAQ Market must involve a financial investment

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company with a dealing license in Korea as the other party. Foreign investors are prohibited from engaging in margin transactions through borrowing shares from financial investment companies with respect to shares which are subject to a foreign ownership limit.

The Investment Rules require a foreign investor who wishes to invest in shares for the first time on the KRX KOSPI Market or the KRX KOSDAQ Market (including converted shares) and shares being publicly offered for initial listing on the KRX KOSPI Market or the KRX KOSDAQ Market to register its identity with the Financial Supervisory Service prior to making any such investment; however, the registration requirement does not apply to foreign investors who acquire converted shares with the intention of selling such converted shares within three months from the date of acquisition of the converted shares or who acquire the shares in an over-the-counter transaction or dispose of shares where such acquisition or disposal is deemed to be a foreign direct investment pursuant to the Foreign Investment Promotion Law. Upon registration, the Financial Supervisory Service will issue to the foreign investor an investment registration card which must be presented each time the foreign investor opens a brokerage account with a financial investment company or financial institution in Korea. Foreigners eligible to obtain an investment registration card include foreign nationals who have not been residing in Korea for a consecutive period of six months or longer, foreign governments, foreign municipal authorities, foreign public institutions, international financial institutions or similar international organizations, corporations incorporated under foreign laws and any person in any additional category designated by decree promulgated under the Financial Investment Services and Capital Markets Act. All Korean offices of a foreign corporation as a group are treated as a separate foreigner from the offices of the corporation outside Korea for the purpose of investment registration. However, a foreign corporation or depositary issuing depositary receipts may obtain one or more investment registration cards in its name in certain circumstances as described in the relevant regulations.

Upon a foreign investor’s purchase of shares through the KRX KOSPI Market or the KRX KOSDAQ Market, no separate report by the investor is required because the investment registration card system is designed to control and oversee foreign investment through a computer system. However, where a foreign investor acquires or sells shares outside the KRX KOSPI Market and the KRX KOSDAQ Market, such acquisition or sale of shares must be reported by the foreign investor or such foreign investor’s standing proxy to the Governor of the Financial Supervisory Service, or the Governor, at the time of each such acquisition or sale; provided, however, that a foreign investor must ensure that any acquisition or sale of shares outside the KRX KOSPI Market or the KRX KOSDAQ Market in the case of trades in connection with a tender offer, odd-lot trading of shares or trades of a class of shares for which the aggregate foreign ownership limit has been reached or exceeded, is reported to the Governor by the Korea Securities Depository, financial investment companies with a dealing or brokerage license or securities finance companies engaged to facilitate such transaction. In the event a foreign investor desires to acquire or sell shares outside the KRX KOSPI Market or the KRX KOSDAQ Market and the circumstances in connection with such sale or acquisition do not fall within the exceptions made for certain limited circumstances described above, then the foreign investor must obtain the prior approval of the Governor. In addition, in the event a foreign investor acquires or sells shares outside the KRX KOSPI Market or the KRX KOSDAQ Market, a prior report to the Bank of Korea may also be required in certain circumstances. A foreign investor must appoint one or more standing proxies among the Korea Securities Depository, foreign exchange banks (including domestic branches of foreign banks), financial investment companies with a dealing, brokerage or collective investment license and certain eligible foreign custodians which will act as a standing proxy to exercise shareholders’ rights, or perform any matters related to the foregoing activities if the foreign investor does not perform these activities himself. Generally, a foreign investor may not permit any person, other than his, her or its standing proxy, to exercise rights relating to its shares or perform any tasks related thereto on his, her or its behalf. However, a foreign investor may be exempted from complying with these standing proxy rules with the approval of the Governor in cases deemed inevitable by reason of conflict between laws of Korea and the home country of the foreign investor.

Certificates evidencing shares of Korean companies must be kept in custody with an eligible custodian in Korea. The Korea Securities Depository, foreign exchange banks (including domestic branches of foreign banks), financial investment companies with a dealing, brokerage or collective investment license and certain eligible foreign custodians are eligible to act as a custodian of shares for a non-resident or foreign investor. A foreign investor must ensure that his, her or its custodian deposits the shares with the Korea Securities Depository. However, a foreign investor may be exempted from complying with this deposit requirement with the approval of the

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Governor in circumstances where compliance with that requirement is made impracticable, including cases where compliance would contravene the laws of the home country of such foreign investor.

Under the Investment Rules, with certain exceptions, foreign investors may acquire shares of a Korean company without being subject to any foreign investment ceiling. As one such exception, designated public corporations are subject to a 40.0% ceiling on the acquisition of shares by foreigners in the aggregate. Designated public corporations may set a ceiling on the acquisition of shares by a single person within 3.0% of the total number of shares in their articles of incorporation. Currently, Korea Electric Power Corporation is the only designated public corporation which has set such a ceiling. Furthermore, an investment by a foreign investor of not less than 10.0% of the outstanding shares with voting rights of a Korean company is defined as a direct foreign investment under the Foreign Investment Promotion Law, which is, in general, subject to the report to, and acceptance by, the Ministry of Knowledge Economy of Korea, which delegates its authority to foreign exchange banks or the Korea Trade-Investment Promotion Agency under the relevant regulations. The acquisition of our shares by a foreign investor is also subject to the restrictions prescribed in the Telecommunications Business Act. The Telecommunications Business Act generally limits the maximum aggregate foreign shareholdings in us to 49.0% of the outstanding shares. A foreigner who has acquired shares in excess of such restriction described above may not exercise the voting rights with respect to the shares exceeding such limitations and may be subject to corrective orders.

Under the Foreign Exchange Transaction Laws, a foreign investor who intends to make a portfolio investment in shares of a Korean company listed on the KRX KOSPI Market or the KRX KOSDAQ Market must designate a foreign exchange bank at which he, she or it must open a foreign currency account and a Won account exclusively for stock investments. No approval is required for remittance into Korea and deposit of foreign currency funds in the foreign currency account. Foreign currency funds may be transferred from the foreign currency account at the time required to place a deposit for, or settle the purchase price of, a stock purchase transaction to a Won account opened at a securities company. Funds in the foreign currency account may be remitted abroad without any governmental approval.

Dividends on shares are paid in Won. No governmental approval is required for foreign investors to receive dividends on, or the Won proceeds of the sale of, any such shares to be paid, received and retained in Korea. Dividends paid on, and the Won proceeds of the sale of, any such shares held by a non-resident of Korea must be deposited either in a Won account with the investor’s financial investment companies with a securities dealing, brokerage or collective investment license or the investor’s Won account. Funds in the investor’s Won account may be transferred to such investor’s foreign currency account or withdrawn for local living expenses, provided that any withdrawal of local living expenses in excess of a certain amount is reported to the tax authorities by the foreign exchange bank at which the Won account is maintained. Funds in the investor’s Won account may also be used for future investment in shares or for payment of the subscription price of new shares obtained through the exercise of preemptive rights.

Financial investment companies with a securities dealing, brokerage or collective investment license are allowed to open foreign currency accounts with foreign exchange banks exclusively for accommodating foreign investors’ stock investments in Korea. Through these accounts, these financial investment companies may enter into foreign exchange transactions on a limited basis, such as conversion of foreign currency funds and Won funds, either as a counterparty to or on behalf of foreign investors, without the investors having to open their own accounts with foreign exchange banks.

Item 10.E. Taxation

United States Taxation

This summary describes certain material U.S. federal income tax consequences for a U.S. holder (as defined below) of acquiring, owning, and disposing of common shares or ADSs. This summary applies to you only if you hold the common shares or ADSs as capital assets for tax purposes. This summary does not apply to you if you are a member of a class of holders subject to special rules, such as:

• a dealer in securities or currencies;

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•	a trader in securities that elects to use a mark-to-market method of accounting for securities holdings;
•	a bank;
•	a life insurance company;
•	a tax-exempt organization;
•	a person that holds common shares or ADSs that are a hedge or
that are hedged against interest rate or currency risks;
•	a person that holds common shares or ADSs as part of a straddle
or conversion transaction for tax purposes;
•	a person whose functional currency for tax purposes is not the
U.S. dollar; or
•	a person that owns or is deemed to own 10% or more of any class
of our stock.

This summary is based on the Internal Revenue Code of 1986, as amended, its legislative history, existing and proposed regulations promulgated thereunder, and published rulings and court decisions, all as currently in effect. These laws are subject to change, possibly on a retroactive basis.

Please consult your own tax advisers concerning the U.S. federal, state, local, and other tax consequences of purchasing, owning, and disposing of common shares or ADSs in your particular circumstances.

For purposes of this summary, you are a “U.S. holder” if you are the beneficial owner of a common share or an ADS and are:

•	a citizen or resident of the United States;
•	a U.S. domestic corporation; or
•	otherwise subject to U.S. federal income tax on a net
income basis with respect to income from the common share or ADS.

In general, if you are the beneficial owner of ADSs, you will be treated as the beneficial owner of the common shares represented by those ADSs for U.S. federal income tax purposes, and no gain or loss will be recognized if you exchange an ADS for the common share represented by that ADS.

Dividends

The gross amount of cash dividends that you receive (prior to deduction of Korean taxes) generally will be subject to U.S. federal income taxation as foreign source dividend income and will not be eligible for the dividends received deduction. Dividends paid in Won will be included in your income in a U.S. dollar amount calculated by reference to the exchange rate in effect on the date of your receipt of the dividend, in the case of common shares, or the depositary’s receipt, in the case of ADSs, regardless of whether the payment is in fact converted into U.S. dollars. If such a dividend is converted into U.S. dollars on the date of receipt, you generally should not be required to recognize foreign currency gain or loss in respect of the dividend income.

Subject to certain exceptions for short-term and hedged positions, the U.S. dollar amount of dividends received by an individual prior to January 1, 2013 with respect to the ADSs will be subject to taxation at a maximum rate of 15% if the dividends are “qualified dividends”. Dividends paid on the ADSs will be treated as qualified dividends if (i) the ADSs are readily tradable on an established securities market in the United States and (ii) we were not, in the year prior to the year in which the dividend was paid, and are not, in the year in which the dividend is paid, a passive foreign investment company as defined for U.S. federal income tax purposes (“PFIC”). The ADSs are listed on the New York Stock Exchange, and will qualify as readily tradable on an established securities market in the United States so long as they are so listed. Based on our audited financial statements, as well as relevant market and shareholder data, we believe that we were not a PFIC with respect to our 2010 taxable year. In addition, based on our audited financial statements and current expectations regarding the value and nature of our assets, the sources and nature of our income, and relevant market and shareholder data, we do not anticipate becoming a PFIC for our 2011 taxable year.

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Distributions of additional shares in respect of common shares or ADSs that are made as part of a pro-rata distribution to all of our stockholders generally will not be subject to U.S. federal income tax.

Sale or Other Disposition

For U.S. federal income tax purposes, gain or loss you realize on a sale or other disposition of common shares or ADSs generally will be treated as U.S. source capital gain or loss, and will be long-term capital gain or loss if the common shares or ADSs were held for more than one year. Your ability to offset capital losses against ordinary income is limited. Long-term capital gain recognized by an individual U.S. holder generally is subject to taxation at reduced rates.

Foreign Tax Credit Considerations

You should consult your own tax advisers to determine whether you are subject to any special rules that limit your ability to make effective use of foreign tax credits, including the possible adverse impact of failing to take advantage of benefits under the income tax treaty between the United States and Korea. If no such rules apply, you may claim a credit against your U.S. federal income tax liability for Korean taxes withheld from dividends on the common shares or ADSs, so long as you have owned the common shares or ADSs (and not entered into specified kinds of hedging transactions) for at least a 16-day period that includes the ex-dividend date. Instead of claiming a credit, you may, if you so elect, deduct such Korean taxes in computing your taxable income, subject to generally applicable limitations under U.S. tax law. Korean taxes withheld from a distribution of additional shares that is not subject to U.S. tax may be treated for U.S. federal income tax purposes as imposed on “general limitation” income. Such treatment could affect your ability to utilize any available foreign tax credit in respect of such taxes.

Any Korean securities transaction tax or agriculture and fishery special surtax that you pay will not be creditable for foreign tax credit purposes.

Foreign tax credits will not be allowed for withholding taxes imposed in respect of certain short-term or hedged positions in securities and may not be allowed in respect of arrangements in which a U.S. holder’s expected economic profit is insubstantial.

The calculation of foreign tax credits and, in the case of a U.S. holder that elects to deduct foreign taxes, the availability of deductions involve the application of complex rules that depend on a U.S. holder’s particular circumstances. You should consult your own tax advisers regarding the creditability or deductibility of such taxes.

U.S. Information Reporting and Backup Withholding Rules

Payments of dividends and sales proceeds that are made within the United States or through certain U.S.-related financial intermediaries are subject to information reporting and may be subject to backup withholding unless the holder (i) is a corporation or other exempt recipient and demonstrates this when required or (ii) provides a taxpayer identification number and certifies that no loss of exemption from backup withholding has occurred. Holders that are not U.S. persons generally are not subject to information reporting or backup withholding. However, such a holder may be required to provide a certification of its non-U.S. status in connection with payments received within the United States or through a U.S.-related financial intermediary.

Korean Taxation

The following is a summary of the principal Korean tax consequences to owners of the common shares or ADSs, as the case may be, who are non-resident individuals or non-Korean corporations without a permanent establishment in Korea to which the relevant income is attributable or with which the relevant income is effectively connected (“Non-resident Holders”). The statements regarding Korean tax laws set forth below are based on the laws in force and as interpreted by the Korean taxation authorities as of the date hereof. This summary is not exhaustive of all possible tax considerations which may apply to a particular investor and potential investors are advised to satisfy themselves as to the overall tax consequences of the acquisition, ownership and disposition of the common shares or ADSs, including specifically the tax consequences under Korean law, the laws of the jurisdiction

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of which they are resident, and any tax treaty between Korea and their country of residence, by consulting their own tax advisors.

Tax on Dividends

Dividends on the common shares or ADSs paid (whether in cash or in shares) to a Non-resident Holder will be subject to Korean withholding taxes at the rate of 22% (including local income tax) or such lower rate as is applicable under a treaty between Korea and such Non-resident Holder’s country of tax residence. Free distributions of shares representing a capitalization of certain capital surplus reserves may be subject to Korean withholding taxes.

The tax is withheld by the payer of the dividend. Since the payer is required to withhold the tax, Korean law does not entitle the person who was subject to the withholding of Korean tax to recover from the Government any part of the Korean tax withheld, even if it subsequently produces evidence that it was entitled to have tax withheld at a lower rate, except in certain limited circumstances.

Tax on Capital Gains

As a general rule, capital gains earned by Non-resident Holders upon transfer of the common shares or ADSs are subject to Korean withholding tax at the lower of (i) 11% (including local income tax) of the gross proceeds realized or (ii) 22% (including local income tax) of the net realized gains (subject to the production of satisfactory evidence of the acquisition costs and certain direct transaction costs), unless exempt from Korean income taxation under the effective Korean tax treaty with the Non-resident Holder’s country of tax residence.

However, a Non-resident Holder will not be subject to Korean income taxation on capital gains realized upon the sale of the common shares through the KRX KOSPI Market if the Non-resident Holder (i) has no permanent establishment in Korea and (ii) did not or has not owned (together with any shares owned by any entity with certain special relationship with such Non-resident Holder) 25% or more of the total issued and outstanding shares of us at any time during the calendar year in which the sale occurs and during the five calendar years prior to the calendar year in which the sale occurs.

It should be noted that capital gains earned by you (regardless of whether you have a permanent establishment in Korea) from a transfer of ADSs outside Korea will generally be exempt from Korean income taxation, provided that the ADSs are deemed to have been issued overseas. If and when an owner of the underlying common shares transfers the ADSs following the conversion of the underlying shares for ADSs, such person will not be exempt from Korean income taxation.

Inheritance Tax and Gift Tax

Korean inheritance tax is imposed upon (1) all assets (wherever located) of the deceased if at the time of his death he was domiciled in Korea and (2) all property located in Korea which passes on death (irrespective of the domicile of the deceased). Gift tax is imposed in similar circumstances to the above. The taxes are imposed if the value of the relevant property is above a certain limit and vary according to the identity of the parties involved.

Under Korean inheritance and gift tax laws, securities issued by a Korean corporation are deemed to be located in Korea irrespective of where they are physically located or by whom they are owned.

Securities Transaction Tax

Securities transaction tax is imposed on the transfer of shares issued by a Korean corporation or the right to subscribe for such shares generally at the rate of 0.5% of the sales price. In the case of the transfer of shares listed on the KRX KOSPI Market (such as the common shares), the securities transaction tax is imposed generally at the rate of (i) 0.3% of the sales price of such shares (including agricultural and fishery special surtax thereon) if traded on the KRX KOSPI Market or (ii) subject to certain exceptions, 0.5% of the sales price of such shares if traded outside the KRX KOSPI Market.

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Securities transaction tax or the agricultural and fishery special surtax is not applicable if (i) the shares or rights to subscribe for shares are listed on a designated foreign stock exchange and (ii) the sale of the shares takes place on such exchange.

Securities transaction tax, if applicable, must be paid by the transferor of the shares or rights, in principle. When the transfer is effected through a securities settlement company, such settlement company is generally required to withhold and pay (to the tax authority) the tax, and when such transfer is made through a financial investment company with a brokerage license only, such company is required to withhold and pay the tax. Where the transfer is effected by a Non-resident Holder without a permanent establishment in Korea, other than through a securities settlement company or a financial investment company with a brokerage license, the transferee is required to withhold the securities transaction tax. Failure to do so will result in the imposition of penalties equal to the sum of (i) between 10% to 40% of the tax amount due, depending on the nature of the improper reporting, and (ii) 10.95% per annum on the tax amount due for the default period.

Tax Treaties

Currently, Korea has income tax treaties with a number of countries, inter alia, Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Italy, Japan, Luxembourg, Ireland, the Netherlands, New Zealand, Norway, Singapore, Sweden, Switzerland, the United Kingdom and the United States of America under which the rate of withholding tax on dividend and interest is reduced, generally to between 5% and 16.5% (including local income tax), and the tax on capital gains derived by a non-resident from the transfer of securities issued by a Korean company is often eliminated.

Each Non-resident Holder of common shares should inquire for itself whether it is entitled to the benefits of a tax treaty with Korea. It is the responsibility of the party claiming the benefits of a tax treaty in respect of interest, dividend, capital gains or “other income” to submit to us (or our agent), the purchaser or the financial investment company with a brokerage license, as the case may be, prior to or at the time of payment, such evidence of tax residence of the party claiming the treaty benefit as the Korean tax authorities may require in support of its claim for treaty protection. In the absence of sufficient proof, we (or our agent), the purchaser or the financial investment company with a brokerage license, as the case may be, must withhold tax at the normal rates.

Furthermore, in order for a non-resident of Korea to obtain the benefits of tax exemption on certain Korean source income (e.g., capital gains and interest) under an applicable tax treaty, Korean tax law requires such non-resident (or its agent) to submit to the payer of such Korean source income an application for a tax exemption along with a certificate of tax residency of such non-resident issued by a competent authority of the non-resident’s country of tax residence, subject to certain exceptions. The payer of such Korean source income, in turn, is required to submit such application to the relevant district tax office by the ninth day of the month following the date of the first payment of such income.

At present, Korea has not entered into any tax treaty relating to inheritance or gift tax.

Item 10.F. Dividends and Paying Agents

Not applicable.

Item 10.G. Statements by Experts

Not applicable.

Item 10.H. Documents on Display

We file reports, including annual reports on Form 20-F, and other information with the SEC pursuant to the rules and regulations of the SEC that apply to foreign private issuers. You may read and copy any materials filed with the SEC at the Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. Any filings we make electronically will be available to the public over the Internet at the SEC’s Website at http://www.sec.gov .

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Documents filed with annual reports and documents filed or submitted to the SEC are also available for inspection at our principal business office during normal business hours. Our principal business office is located at SK T-Tower, 11, Euljiro 2-ga, Jung-gu, Seoul 100-999, Korea.

Item 10.I. Subsidiary Information

Not applicable.

ITEM 11. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Exchange Rate and Interest Rate Risks

We are exposed to foreign exchange rate and interest rate risk primarily associated with underlying liabilities. We have entered into floating-to-fixed cross currency swap contracts to hedge foreign currency and interest rate risks with respect to long-term borrowings of US$100 million borrowed in October 2006, Yen 12.5 billion of bonds issued in November 2007, Yen 3 billion of bonds issued in January 2009 and Yen 5 billion of bonds issued in March 2009. We have also entered into floating-to-fixed interest rate swap contracts to hedge the interest rate risks with respect to long-term floating rate borrowings with face amounts totaling Won 500 billion borrowed in July and August 2008 and floating rate bonds with face amounts totaling US$220 million issued in April 2009. In addition, we have entered into fixed-to-fixed cross currency swap contracts to hedge the foreign currency risks of US$300 million of bonds issued in April 2004 and US$400 million of bonds issued in July 2007. In addition, SK Broadband, one of our subsidiaries, has entered into a fixed-to-fixed cross currency swap contract to hedge the foreign currency risks of US$500 million of bonds issued in February 2005.

See note 27 of the notes to our consolidated financial statements. We may consider in the future entering into other such transactions solely for hedging purposes.

The following discussion and tables, which constitute “forward looking statements” that involve risks and uncertainties, summarize our market-sensitive financial instruments including fair value, maturity and contract terms. These tables address market risk only and do not present other risks which we face in the normal course of business, including country risk, credit risk and legal risk.

Exchange Rate Risk

Korea is our main market and, therefore, substantially all of our cash flow is denominated in Won. We are exposed to foreign exchange risk related to foreign currency denominated liabilities. These liabilities relate primarily to foreign currency denominated debt, all in Dollars and Yen. A 10% change in the exchange rate between the Won and all foreign currencies would result in a change in net liabilities (total monetary liabilities minus total monetary assets) of approximately 1.7% or Won 41.1 billion as of December 31, 2010.

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Interest Rate Risk

We are also subject to market risk exposure arising from changing interest rates. The following table summarizes the carrying amounts and fair values, maturity and contract terms of our exchange rate and interest sensitive short-term and long-term liabilities as of December 31, 2010:

	Maturities — 2011		2012		2013		2014		2015		Thereafter		Total		Fair Value
	(In billions of Won, except for percentage data)
Local currency:
Fixed rate	W	818.3	W	12.3	W	601.8	W	198.2	W	196.5	W	658.3	W	2,485.3	W	2,601.2
Average weighted rate(1)		5.68 %		5.28 %		5.26 %		5.16 %		5.13 %		5.44 %
Variable rate		761.1		—		—		—		—		—		761.1		761.1
Average weighted rate(1)		4.53 %		0.00 %		0.00 %		0.00 %		0.00 %		0.00 %
Sub-total		1,579.4		12.3		601.8		198.2		196.5		658.3		3,246.4		3,362.3
Foreign currency:
Fixed rate		341.5		570.7		10.3		380.2		16.1		470.5		1,789.3		2,056.1
Average weighted rate(1)		4.25 %		7.32 %		0.00 %		2.01 %		0.00 %		6.42 %
Variable rate		—		534.4		113.9		—		34.4		—		682.7		682.7
Average weighted rate(1)		0.00 %		2.47 %		1.23 %		0.00 %		7.82 %		0.00 %
Sub-total		341.5		1,105.1		124.2		380.2		50.5		470.5		2,472.0		2,738.8
Total	W	1,920.9	W	1,117.4	W	726.0	W	578.4	W	247.0	W	1,128.7	W	5,718.4	W	6,101.1

(1) Weighted average rates of the portfolio at the period end.

A 1.0% point change in interest rates would result in a change of approximately 3.45% in the fair value of our liabilities resulting in a Won 151.3 billion change in their value as of December 31, 2010 and a Won 14.4 billion annualized change in interest expenses.

ITEM 12. DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES

12.A. Debt Securities

Not applicable.

12.B. Warrants and Rights

Not applicable.

12.C. Other Securities

Not applicable.

12.D. American Depositary Shares

Fees and Charges under Deposit Agreement

The ADR depositary will charge the party receiving ADSs up to $5.00 per 100 ADSs (or fraction thereof), provided that the ADR depositary has agreed to waive such fee as would have been payable by us in the case of (i) an offering of ADSs by us or (ii) any distribution of shares of common stock or any rights to subscribe for additional shares of common stock. The ADR depositary will not charge the party to whom ADSs are delivered against deposits. The ADR depositary will charge the party surrendering ADSs for delivery of deposited securities up to $5.00 per 100 ADSs (or fraction thereof) surrendered. The ADR depositary will also charge the party to whom any cash distribution, or for whom the sale or exercise of rights or other corporate action involving distributions to shareholders, is made with respect to ADSs up to $0.02 per ADS held plus the expenses of the ADR depositary on a per-ADS basis. We will pay the expenses of the ADR depositary and any entity acting as registrar for the shares only

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as specified in the deposit agreement. The ADR depositary will pay any other charges and expenses of the ADR depositary and the entity acting as registrar for the shares.

Holders of ADRs must pay (i) taxes and other governmental charges, (ii) share transfer registration fees on deposits of shares of common stock, (iii) such cable, telex, facsimile transmission and delivery expenses as are expressly provided in the deposit agreement to be at the expense of persons depositing shares of common stock or holders of ADRs and (iv) such reasonable expenses as are incurred by the ADR depositary in the conversion of foreign currency into United States dollars.

Notwithstanding any other provision of the deposit agreement, in the event that the ADR depositary determines that any distribution in property (including shares or rights to subscribe therefor or other securities) is subject to any tax or governmental charges which the ADR depositary is obligated to withhold, the ADR depositary may dispose of all or a portion of such property (including shares and rights to subscribe therefor) in such amounts and in such manner as the ADR depositary deems necessary and practicable to pay such taxes or governmental charges, including by public or private sale, and the ADR depositary will distribute the net proceeds of any such sale or the balance of any such property after deduction of such taxes or governmental charges to the holders of ADSs entitled thereto in proportion to the number of ADSs held by them respectively.

All such charges may be changed by agreement between the ADR depositary and us at any time and from time to time, subject to the deposit agreement. The right of the ADR depositary to receive payment of fees, charges and expenses shall survive the termination of this deposit agreement and, as to any depositary, the resignation or removal of such depositary pursuant to the deposit agreement.

For a detailed summary of the deposit agreement, see “Item 10.B. Memorandum and Articles of Incorporation — Description of American Depositary Shares”.

Payments made by ADS Depositary

All fees and other direct and indirect payments reimbursed by the depositary are as following.

	Year Ended
	December 31,
	2010
	(In dollars)
Expenses for preparation of SEC filing and submission	$ 1,062,591
Listing Fees	$ 176,450
Education/Training	$ 268,368
Corporate Action	$ 833,025
Miscellaneous	$ 51,230
Total	$ 2,391,664

PART II

ITEM 13. DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES

None.

ITEM 14. MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS

None.

ITEM 15. CONTROLS AND PROCEDURES

Our management has evaluated, with the participation of our Chief Executive Officers and Chief Financial Officer, the effectiveness of our disclosure controls and procedures, as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, as of December 31, 2010. There are inherent limitations to the effectiveness of

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any system of disclosure controls and procedures, including the possibility of human error and the circumvention or overriding of the controls and procedures. Accordingly, even effective disclosure controls and procedures can only provide reasonable assurance of achieving their control objectives. Based upon our evaluation, our Chief Executive Officers and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of such date. Our disclosure controls and procedures are designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms, and that it is accumulated and communicated to our management, including our Chief Executive Officers and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

Management’s Annual Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act. Because of its inherent limitations, internal control over financial reporting is not intended to provide absolute assurance that a misstatement of our financial statements would be prevented or detected. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. Under the supervision and with the participation of our management, including our Chief Executive Officers and Chief Financial Officer, we conducted an evaluation of the effectiveness of our internal control over financial reporting based on the framework in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission. Our internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with accounting principles generally accepted in the Republic of Korea and accounting principles generally accepted in the United States of America. Based on our evaluation, our management concluded that our internal control over financial reporting was effective as of December 31, 2010. The effectiveness of our internal control over financial reporting as of December 31, 2010 has been audited by Deloitte Anjin LLC, an independent registered public accounting firm, as stated in its report which is included herein.

Attestation Report of the Registered Public Accounting Firm

The attestation report of our independent registered public accounting firm is furnished in Item 18 of this Form 20-F.

Changes in Internal Control Over Financial Reporting

There has been no change in our internal control over financial reporting during 2010 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

ITEM 16. RESERVED

Item 16A. AUDIT COMMITTEE FINANCIAL EXPERT

At our annual shareholders’ meeting in March 2011, our shareholders re-elected the following two members of the Audit Committee: Jay Young Chung and Jae Ho Cho. In addition, they determined and designated that Jae Ho Cho is an “audit committee financial expert” within the meaning of this Item 16A. The board of directors have approved this re-elected Audit Committee, and reaffirmed the determination by our shareholders that Jae Ho Cho is an audit committee financial expert and further determined that he is independent within the meaning of applicable SEC rules and the listing standards of the New York Stock Exchange. See “Item 6.C. Board Practices — Audit Committee” for additional information regarding our Audit Committee.

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Item 16B. CODE OF ETHICS

Code of Ethics for Chief Executive Officer, Chief Financial Officer and Controller

We have a code of ethics that applies to our Chief Executive Officers, senior accounting officers and employees. We also have internal control and disclosure policy designed to promote full, fair, accurate, timely and understandable disclosure in all of our reports and publicly filed documents. A copy of our code of ethics is available on our website at www.sktelecom.com . If we amend the provisions of our code of ethics that apply to our Chief Executive Officers, Chief Financial Officer and persons performing similar functions, or if we grant any waiver of such provisions, we will disclose such amendment or waiver on our website.

Item 16C. PRINCIPAL ACCOUNTANT FEES AND SERVICES

The table sets forth the fees we paid to our independent registered public accounting firm Deloitte Anjin LLC for the year ended December 31, 2009 and 2010, respectively:

	Years Ended December 31, — 2009		2010
	(In millions of Won)
Audit Fees	W	2,185.3	W	2,256.8
Audit-Related Fees	W	252.2	W	360.8
Tax Fees	W	177.3	W	177.7
All Other Fees		—		—
Total	W	2,614.8	W	2,795.3

“Audit Fees” are the aggregate fees billed by Deloitte Anjin LLC in 2009 and 2010, respectively, for the audit of our consolidated annual financial statements, reviews of interim financial statements and attestation services that are provided in connection with statutory and regulatory filings or engagements.

“Audit-Related Fees” are fees charged by Deloitte Anjin LLC in 2009 and 2010, respectively, for assurance and related services that are reasonably related to the performance of the audit or review of our financial statements and are not reported under “Audit Fees”. This category comprises fees billed for advisory services associated with our financial reporting.

“Tax Fees” are fees for professional services rendered by Deloitte Anjin LLC in 2009 and 2010, respectively, for tax compliance, tax advice on actual or contemplated transactions and tax planning services.

Fees disclosed under the category “ All Other Fees ” are fees for professional services rendered by Deloitte Anjin LLC in 2009 and 2010, respectively, primarily for business consulting.

Pre-Approval of Audit and Non-Audit Services Provided by Independent Registered Public Accounting Firm

Our audit committee pre-approves all audit services to be provided by Deloitte Anjin LLC, our independent registered public accounting firm. Our audit committee’s policy regarding the pre-approval of non-audit services to be provided to us by our independent auditors is that all such services shall be pre-approved by the Audit Committee. Non-audit services that are prohibited to be provided to us by our independent auditors under the rules of the SEC and applicable law may not be pre-approved. In addition, prior to the granting of any pre-approval, our audit committee must be satisfied that the performance of the services in question will not compromise the independence of our independent registered public accounting firm.

Our audit committee did not pre-approve any non-audit services under the de minimis exception of Rule 2-01 (c)(7)(i)(C) of Regulation S-X as promulgated by the SEC.

Item 16D. EXEMPTIONS FROM THE LISTING STANDARDS FOR AUDIT COMMITTEES

Not applicable.

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Item 16E. PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS

The following table sets forth the repurchases of common shares by us or any “affiliated purchasers” (as defined in Rule 10b-18(a)(3) of the Exchange Act) during the fiscal year ended December 31, 2010.

				Shares Purchased as	Shares That May Yet
				Part of Publicly	be Purchased Under
	Total Number of		Average Price Paid	Announced Plans or	the Plans or
Period 2010	Shares Purchased(1)		per Share	Program(2)	Program(2)
January	—			—	—	—
February	—			—	—	—
March	—			—	—	—
April	—			—	—	—
May	—			—	—	—
June	—			—	—	—
July	135,000		W	166,255	135,000	1,115,000
August	435,000			165,796	435,000	680,000
September	370,074			165,403	370,074	309,926
October	309,926			174,750	309,926	—
November	—			—	—	—
December	—			—	—	—
Total	1,250,000	(1)	W	167,949	1,250,000	—

(1)	Purchased through open market transactions.
(2)	On July 22, 2010, we announced a plan to repurchase up to
1,250,000 common shares during the period between July 23,
2010 and October 22, 2010.

Item 16F. CHANGE IN REGISTRANT’S CERTIFYING ACCOUNTANT

Not applicable.

Item 16G. CORPORATE GOVERNANCE

The following is a summary of the significant differences between the New York Stock Exchange’s corporate governance standards and those that we follow under Korean law.

NYSE Corporate Governance Standards	Our Corporate Governance Practice
Director Independence
Listed companies must have a majority of independent directors.	Of the eight members of our board of directors, five are
independent directors.
Executive Session
Listed companies must hold meetings solely attended by
independent directors to more effectively check and balance
management directors.	Our Audit Committee, which is comprised solely of four
independent directors, holds meetings whenever there are matters
related to management directors, and such meetings are generally
held once every month.
Nomination/Corporate Governance Committee
Listed companies must have a nomination/corporate governance
committee composed entirely of independent directors.	Although we do not have a separate nomination/ corporate
governance committee, we maintain an Independent Director
Nomination Committee composed of independent directors and
management directors.

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NYSE Corporate Governance Standards	Our Corporate Governance Practice
Audit Committee
Listed companies must have an audit committee that satisfies the
requirements of Rule 10A-3 under the Exchange Act.	We maintain an Audit Committee comprised solely of four
independent directors.
Audit Committee Additional Requirements
Listed companies must have an audit committee that is composed
of more than three directors.	Our Audit Committee has four independent directors.
Shareholder Approval of Equity Compensation Plan
Listed companies must allow its shareholders to exercise their
voting rights with respect to any material revision to the
company’s equity compensation plan.	We currently have two equity compensation plans: a stock option
plan for officers and directors and employee stock ownership
plan for employees (“ESOP”). We manage such
compensation plans in compliance with the applicable laws and
our articles of incorporation, provided that, under certain
limited circumstances, the grant of stock options or matters
relating to ESOP are not subject to shareholders’ approval
under Korean law.
Corporate Governance Guidelines
Listed companies must adopt and disclose corporate governance
guidelines.	Although we do not maintain separate corporate governance
guidelines, we are in compliance with the Korean Commercial Code
in connection with such matters, including the governance of the
board of directors.
Code of Business Conduct and Ethics
Listed companies must adopt and disclose a code of business
conduct and ethics for directors, officers and employees and
promptly disclose any waivers of the code for directors or
executive officers.	We have adopted a Code of Business Conduct and Ethics for all of
our directors, officers and employees, and such code is also
available on our website at www.sktelecom.com.

PART III

ITEM 17. FINANCIAL STATEMENTS

Not applicable.

ITEM 18. FINANCIAL STATEMENTS

Index of Financial Statements	F-1
Report of Independent Registered Public Accounting Firm on
Consolidated Financial Statements	F-2
Report of Independent Registered Public Accounting Firm on
Internal Control over Financial Reporting	F-3
Consolidated balance sheets as of December 31, 2008, 2009
and 2010	F-4
Consolidated statements of income for the years ended
December 31, 2008, 2009 and 2010	F-6
Consolidated statements of stockholders’ equity for the
years ended December 31, 2008, 2009 and 2010	F-8
Consolidated statements of cash flows for the years ended
December 31, 2008, 2009 and 2010	F-10
Notes to consolidated financial statements for the years ended
December 31, 2008, 2009 and 2010	F-13

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ITEM 19. EXHIBITS

Number		Description
1	.1	Articles of Incorporation (incorporated by reference to Exhibit
1.1 to the Registrant’s Annual Report on Form 20-F filed on
June 30, 2010)
2	.1	Deposit Agreement dated as of May 31, 1996, as amended by
Amendment No. 1 dated as of March 15, 1999, Amendment No. 2
dated as of April 24, 2000 and Amendment No. 3 dated as of July
24, 2002, entered into among SK Telecom Co., Ltd., Citibank,
N.A., as Depositary, and all Holders and Beneficial Owners of
American Depositary Shares (incorporated by reference to Exhibit
2.1 to the Registrant’s Annual Report on Form 20-F filed on
June 30, 2006)
8	.1	List of Subsidiaries of SK Telecom Co., Ltd.
12	.1	Certification of Principal Executive Officer Pursuant to Section
302 of the Sarbanes-Oxley Act of 2002
12	.2	Certification of Principal Financial Officer Pursuant to Section
302 of the Sarbanes-Oxley Act of 2002
13	.1	Certification of Principal Executive Officer Pursuant to
18 U.S.C. Section 1350, As Adopted Pursuant to Section 906
of the Sarbanes-Oxley Act of 2002
13	.2	Certification of Principal Financial Officer Pursuant to
18 U.S.C. Section 1350, As Adopted Pursuant to Section 906
of the Sarbanes-Oxley Act of 2002
15	.1	Framework Act on Telecommunications, as amended (English
translation)
15	.2	Enforcement Decree of the Framework Act on Telecommunications,
as amended (English translation)
15	.3	Telecommunications Business Act, as amended (English translation)
15	.4	Enforcement Decree of the Telecommunications Business Act, as
amended (English translation)
15	.5	Amendment to the Government Organization Act (incorporated by
reference to Exhibit 15.5 to the Registrant’s Annual Report
on Form 20-F filed on June 30, 2008)

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INDEX OF FINANCIAL STATEMENTS

TOC

| Report of Independent Registered Public
Accounting Firm on Consolidated Financial Statements | F-2 |
| --- | --- |
| Report of Independent Registered Public
Accounting Firm on Internal Control over Financial Reporting | F-3 |
| Consolidated statement of financial position as
of December 31, 2008, 2009 and 2010 | F-4 |
| Consolidated statements of income for the years
ended December 31, 2008, 2009 and 2010 | F-6 |
| Consolidated statements of stockholders’
equity for the years ended December 31, 2008, 2009 and
2010 | F-8 |
| Consolidated statements of cash flows for the
years ended December 31, 2008, 2009 and 2010 | F-10 |
| Notes to consolidated financial statements for
the years ended December 31, 2008, 2009 and 2010 | F-13 |

/TOC

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM ON CONSOLIDATED FINANCIAL STATEMENTS

To the Board of Directors and Stockholders of

SK Telecom Co., Ltd.

We have audited the accompanying consolidated statements of financial position of SK Telecom Co., Ltd. and subsidiaries (the “Company”) as of December 31, 2008, 2009 and 2010, and the related consolidated statements of income, stockholders’ equity, and cash flows for each of the three years in the period ended December 31, 2010 (all expressed in Korean won). These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such consolidated financial statements present fairly, in all material respects, the financial position of SK Telecom Co., Ltd. and subsidiaries at December 31, 2008, 2009 and 2010, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2010, in conformity with accounting principles generally accepted in the Republic of Korea.

Our audits also comprehended the translation of the Korean won amounts into U.S. dollar amounts and, in our opinion, such translation has been made in conformity with the basis stated in Note 2(a) to the accompanying consolidated financial statements. Such U.S. dollar amounts are presented solely for the convenience of readers of the financial statements.

Accounting principles generally accepted in the Republic of Korea vary in certain significant respects from accounting principles generally accepted in the United States of America. Information relating to the nature and effect of such differences is presented in Notes 32 and 33 to the consolidated financial statements.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company’s internal control over financial reporting as of December 31, 2010, based on the criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated June 29, 2011 expressed an unqualified opinion on the Company’s internal control over financial reporting.

/s/ Deloitte Anjin LLC

Seoul, Korea

June 29, 2011

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM ON INTERNAL CONTROL OVER FINANCIAL REPORTING

To the Board of Directors and Stockholders of

SK Telecom Co., Ltd.

We have audited the internal control over financial reporting of SK Telecom Co., Ltd. and subsidiaries (the “Company”) as of December 31, 2010, based on criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission. The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed by, or under the supervision of, the company’s principal executive and principal financial officers, or persons performing similar functions, and effected by the company’s board of directors, management, and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion or improper management override of controls, material misstatements due to error or fraud may not be prevented or detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal control over financial reporting to future periods are subject to the risk that the controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2010, based on the criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated financial statements as of and for the year ended December 31, 2010 (all expressed in Korean won) of the Company and our report dated June 29, 2011, expressed an unqualified opinion on those financial statements, and included explanatory paragraphs relating to (1) the translation of Korean won amounts to U.S. dollar amounts and (2) information relating to the nature and effect of differences between accounting principles generally accepted in the Republic of Korea and accounting principles generally accepted in the United States of America.

/s/ Deloitte Anjin LLC

Seoul, Korea

June 29, 2011

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SK TELECOM CO., LTD. AND SUBSIDIARIES

XBRL,bs CONSOLIDATED STATEMENTS OF FINANCIAL POSITION

DECEMBER 31, 2008, 2009 AND 2010

XBRL,body

							Translation into
							U.S. Dollars
	Korean Won						(Note 2)
	December 31,		December 31,		December 31,		December 31,
	2008		2009		2010		2010
	(In millions)						(In thousands)
ASSETS
CURRENT ASSETS:
Cash and cash equivalents, net of government subsidy of W 127 million, W 71 million and nil as of
December 31, 2008, 2009 and 2010 (Notes 2, 13 and 28)	W	1,011,340	W	953,855	W	778,509	$ 688,580
Short-term financial instruments (Notes 21 and 22)		368,490		351,675		578,571	511,738
Short-term investment securities (Notes 2 and 4)		372,913		376,723		395,929	350,194
Accounts receivable — trade, net of allowance for
doubtful accounts of W 150,320 million, W 233,078 million and W 248,978 million as of December 31,
2008, 2009 and 2010 (Notes 2, 13 and 24)		1,900,002		2,000,987		1,955,289	1,729,426
Short-term loans, net of allowance for doubtful accounts of W 7,599 million, W 5,058 million and W 2,987 million as of December 31,
2008, 2009 and 2010 (Notes 2, 6 and 13)		119,087		85,677		95,422	84,399
Accounts receivable — other, net of allowance for
doubtful accounts of W 30,357 million, W 42,473 million and W 46,685 million as of December 31,
2008, 2009 and 2010 and present value discount of W 27,314 million, W 8,478 million and W 1,252 million as of December 31,
2008, 2009 and 2010 (Notes 2, 13 and 24)		1,346,056		2,075,949		2,534,284	2,241,539
Inventories (Notes 2, 3 and 23)		34,974		119,890		149,643	132,357
Prepaid expenses		127,432		143,414		164,936	145,884
Current deferred income tax assets (Notes 2 and 17)		27,786		205,291		199,790	176,711
Currency swap (Notes 2 and 27)		8,236		—		—	—
Advanced payments and other		106,131		57,170		120,616	106,683
Total Current Assets		5,422,447		6,370,631		6,972,989	6,167,511
NON-CURRENT ASSETS:
Property and equipment, net (Notes 2, 7, 12, 22, 23
and 24)		7,437,689		8,165,879		7,864,594	6,956,124
Intangible assets, net (Notes 2, 8 and 12)		3,978,145		3,992,325		3,740,643	3,308,547
Long-term financial instruments (Note 21)		114		6,580		264	234
Long-term investment securities (Notes 2 and 4)		3,105,295		2,536,659		1,684,244	1,489,690
Equity securities accounted for using the equity method
(Notes 2 and 5)		898,512		486,393		1,107,843	979,872
Long-term loans, net of allowance for doubtful accounts of W 26,376 million, W 32,114 million and W 31,186 million as of December 31,
2008, 2009 and 2010 (Notes 2 and 6)		155,360		91,830		89,956	79,565
Long-term accounts receivable — trade, net of present
value discount of W 3,914 million and W 2,303 million as of December 31,
2009 and 2010 (Note 2)		—		32,392		22,418	19,828
Long-term accounts receivable — other, net of present
value discount of W 45,464 million and nil
as of December 31, 2008 and 2009		572,139		761,735		527,106	466,218
Guarantee deposits (Notes 13 and 24)		239,480		365,127		265,126	234,500
Long-term currency swap (Notes 2 and 27)		494,711		314,345		201,839	178,524
Non-current deferred income tax assets (Notes 2 and 17)		4,948		8,563		16,497	14,591
Other		164,831		73,797		158,185	139,914
Total Non-Current Assets		17,051,224		16,835,625		15,678,715	13,867,607
TOTAL ASSETS	W	22,473,671	W	23,206,256	W	22,651,704	$ 20,035,118

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CONSOLIDATED STATEMENTS OF FINANCIAL POSITION — (Continued)

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							U.S. Dollars
	Korean Won						(Note 2)
	December 31,		December 31,		December 31,		December 31,
	2008		2009		2010		2010
	(In millions)						(In thousands)
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES:
Accounts payable (Notes 13, 21 and 24)	W	1,268,977	W	1,464,508	W	1,629,804	$	1,441,539
Short-term borrowings (Notes 21 and 22)		627,657		677,235		529,568		468,396
Income taxes payable		328,403		395,720		259,967		229,937
Accrued expenses (Notes 2 and 26)		861,836		1,118,077		1,342,936		1,187,808
Withholdings		315,537		281,962		403,508		356,897
Current portion of long-term debt, net (Notes 2, 8, 9, 10
and 12)		936,009		805,946		1,601,229		1,416,265
Current portion of subscription deposits (Note 11)		8,281		7,511		5,137		4,544
Currency swap (Notes 2 and 27)		190,359		36,318		7,848		6,941
Interest rate swap (Notes 2 and 27)		—		—		7,546		6,674
Advanced receipts and other		91,762		107,660		127,758		113,000
Total Current Liabilities		4,628,821		4,894,937		5,915,301		5,232,001
NON-CURRENT LIABILITIES:
Bonds payable, net (Notes 2, 9 and 22)		4,074,392		4,280,398		3,566,048		3,154,120
Long-term borrowings (Notes 10 and 22)		856,471		844,640		235,968		208,710
Subscription deposits (Note 11)		4,796		5,480		5,220		4,617
Long-term payables — other, net of present value
discount of W 15,416 million, W 5,837 million and W 2,457 million as of December 31,
2008, 2009 and 2010 (Notes 2 and 8)		304,584		164,163		50,643		44,793
Obligations under finance lease (Notes 2, 12 and 22)		139,273		77,709		60,075		53,136
Accrued severance indemnities (Note 2)		53,815		57,655		62,904		55,638
Non-current deferred income tax liabilities, (Notes 2
and 17)		408,755		321,372		104,118		92,091
Long-term currency swap (Notes 2 and 27)		23,947		18,281		9,718		8,595
Long-term interest swap (Notes 2 and 27)		33,499		16,215		5,043		4,460
Guarantee deposits received and other (Notes 2, 21, 24
and 26)		120,878		180,781		158,017		139,765
Total Non-Current Liabilities		6,020,410		5,966,694		4,257,754		3,765,925
Total Liabilities		10,649,231		10,861,631		10,173,055		8,997,926
STOCKHOLDERS’ EQUITY:
Capital stock (Notes 1 and 14)		44,639		44,639		44,639		39,483
Capital surplus (Note 14)		2,958,854		3,031,947		3,031,780		2,681,567
Capital adjustments:
Treasury stock (Notes 1 and 16)		(2,055,620	)	(1,992,083	)	(2,202,439	)	(1,948,027	)
Loss on disposal of treasury stock (Notes 16 and 17)		—		(716	)	(716	)	(633	)
Other capital adjustment (Notes 2, 5 and 17)		(103,769	)	(754,087	)	(790,695	)	(699,359	)
Accumulated other comprehensive income (loss) (Note 18) :
Unrealized gains on valuation of long-term investment
securities, net (Notes 2, 4 and 17)		407,842		998,588		793,977		702,262
Equity in other comprehensive gain (loss) of affiliates, net
(Notes 2, 5 and 17)		(68,763	)	(88,780	)	(84,183	)	(74,459	)
Gain (loss) on valuation of currency swap, net (Notes 2, 17
and 27)		8,544		23,485		(51,142	)	(45,234	)
Gain (loss) on valuation of interest swap, net (Notes 2, 17
and 27)		(26,129	)	(10,932	)	(5,719	)	(5,058	)
Foreign-based operations’ translation adjustment
(Note 2)		34,698		(7,055	)	(13,301	)	(11,765	)
Retained earnings (Note 15)		9,448,185		9,909,753		10,603,399		9,378,559
Non-controlling interest in equity of consolidated subsidiaries
(Note 2)		1,175,959		1,189,866		1,153,049		1,019,856
Total Stockholders’ Equity		11,824,440		12,344,625		12,478,649		11,037,192
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	W	22,473,671	W	23,206,256	W	22,651,704	$	20,035,118

See accompanying notes to consolidated financial statements.

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SK TELECOM CO., LTD. AND SUBSIDIARIES

XBRL,in CONSOLIDATED STATEMENTS OF INCOME

YEARS ENDED DECEMBER 31, 2008, 2009 AND 2010

XBRL,body

							U.S. Dollars
	Korean Won						(Note 2)
	2008		2009		2010		2010
	(In millions except for per share data)						(In thousands except
							for per share data)
OPERATING REVENUE (Notes 2, 24 and 30)	W	13,951,013	W	14,512,347	W	15,435,373	$	13,652,373
OPERATING EXPENSES (Notes 24 and 30):
Labor cost		(726,272	)	(718,598	)	(936,489	)	(828,312	)
Commissions paid		(4,884,061	)	(5,140,173	)	(5,498,329	)	(4,863,196	)
Depreciation and amortization (Notes 7 and 8)		(2,599,169	)	(2,593,474	)	(2,723,580	)	(2,408,969	)
Network interconnection		(1,327,417	)	(1,317,696	)	(1,316,296	)	(1,164,246	)
Leased line		(520,791	)	(434,280	)	(258,937	)	(229,026	)
Advertising		(361,773	)	(341,366	)	(339,775	)	(300,526	)
Research and development (Note 2)		(226,713	)	(236,269	)	(270,378	)	(239,146	)
Rent		(289,154	)	(326,168	)	(349,773	)	(309,369	)
Frequency usage		(163,938	)	(159,740	)	(178,815	)	(158,159	)
Repair		(226,771	)	(253,467	)	(253,053	)	(223,822	)
Provision for bad debts (Note 2)		(61,662	)	(199,933	)	(79,972	)	(70,734	)
Cost of goods sold (Note 2)		(180,590	)	(338,030	)	(634,614	)	(561,307	)
Other		(622,395	)	(571,918	)	(653,059	)	(577,622	)
Sub-total		(12,190,706	)	(12,631,112	)	(13,493,070	)	(11,934,434	)
OPERATING INCOME (Note 30)		1,760,307		1,881,235		1,942,303		1,717,939
OTHER INCOME:
Interest income		134,793		186,427		235,556		208,346
Foreign exchange and translation gains (Note 2)		478,375		152,282		27,121		23,988
Equity in earnings of affiliates (Notes 2 and 5)		24,894		28,685		29,675		26,247
Gain on valuation of short-term investment securities
(Note 2)		—		14,086		—		—
Gain on disposal of property and equipment and intangible assets		9,971		27,228		11,030		9,756
Gain on transactions and valuation of derivatives (Notes 2
and 27)		265,144		109,306		7,951		7,033
Other		141,981		357,952		318,093		281,349
Sub-total		1,055,158		875,966		629,426		556,719

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SK TELECOM CO., LTD. AND SUBSIDIARIES

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							U.S. Dollars
	Korean Won						(Note 2)
	2008		2009		2010		2010
	(In millions except for per share data)						(In thousands except
							for per share data)
OTHER EXPENSES:
Interest and discounts		(365,934	)	(439,921	)	(397,051	)	(351,186	)
Donations		(100,119	)	(71,155	)	(123,293	)	(109,051	)
Foreign exchange and translation losses (Note 2)		(161,761	)	(185,394	)	(16,264	)	(14,385	)
Equity in losses of affiliates (Notes 2 and 5)		(47,104	)	(88,597	)	(59,070	)	(52,247	)
Loss on disposal of account receivable — other		—		(28,711	)	—		—
Loss on disposal of property, equipment and intangible assets		(70,307	)	(91,496	)	(69,841	)	(61,773	)
Loss on transactions and valuation of derivatives (Notes 2
and 27)		(441,255	)	(164,646	)	(19,198	)	(16,980	)
External research and development cost (Note 2)		(72,993	)	(56,867	)	(81,582	)	(72,158	)
Other		(278,478	)	(224,662	)	(131,742	)	(116,524	)
Sub-total		(1,537,951	)	(1,351,449	)	(898,041	)	(794,304	)
INCOME FROM CONTINUING OPERATION BEFORE INCOME TAX		1,277,514		1,405,752		1,673,688		1,480,354
INCOME TAX FOR CONTINUING OPERATION (Notes 2 and 17)		299,299		355,670		404,306		357,603
PREACQUISITION NET LOSS OF SUBSIDIARIES		32,664		—		23,406		20,702
INCOME(LOSS) FROM DISCONTINUED OPERATION (Note 2)		(38,541	)	5,524		4,388		3,881
NET INCOME	W	972,338	W	1,055,606	W	1,297,176	$	1,147,334
ATTRIBUTABLE TO:
Controlling interests	W	1,215,719	W	1,247,182	W	1,379,613	$	1,220,249
Non-controlling interests		(243,381	)	(191,576	)	(82,437	)	(72,915	)
	W	972,338	W	1,055,606	W	1,297,176	$	1,147,334
NET INCOME PER SHARE FROM CONTINUING OPERATION (In Korean won and U.S. dollars) (Notes 2 and 19)	W	16,554	W	17,173	W	19,098	$	16.89
NET INCOME PER SHARE (In Korean won and U.S. dollars) (Notes 2 and 19)	W	16,707	W	17,239	W	19,177	$	16.96
DILUTED NET INCOME PER SHARE FROM CONTINUING OPERATION (In Korean won and U.S. dollars) (Notes 2 and 19)	W	16,409	W	16,981	W	18,811	$	16.64
DILUTED NET INCOME PER SHARE (In Korean won and U.S. dollars) (Notes 2 and 19)	W	16,559	W	17,046	W	18,888	$	16.71

See accompanying notes to consolidated financial statements.

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SK TELECOM CO., LTD. AND SUBSIDIARIES

XBRL,se CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

YEARS ENDED DECEMBER 31, 2008, 2009 AND 2010

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								Accumulated
								Other				Non-		Total
	Common		Capital		Capital			Comprehensive		Retained		Controlling		Stockholders’
	Stock		Surplus		Adjustments			Income		Earnings		Interest		Equity
	(In millions of Korean won)
Balance, January 1, 2008	W	44,639	W	2,924,960	W	(2,041,577	)	W	1,591,258	W	8,914,970	W	253,383	W	11,687,633
Cumulative effect of change in accounting policies (Note 2)		—		31,146		(31,146	)		—		—		—		—
Adjusted balance, January 1, 2008		44,639		2,956,106		(2,072,723	)		1,591,258		8,914,970		253,383		11,687,633
Cash dividends (Note 20)		—		—		—			—		(609,711	)	—		(609,711	)
Interim dividends (Note 20)		—		—		—			—		(72,793	)	—		(72,793	)
Net income		—		—		—			—		1,215,719		(243,381	)	972,338
Conversion rights (Notes 9 and 14)		—		1,544		—			—		—		—		1,544
Difference between the acquisition cost and the net book value
incurred from the capital transactions between companies under
common control (Note 2)		—		—		(75,329	)		—		—		—		(75,329	)
Equity in capital surplus changes of affiliates		—		481		—			—		—		—		481
Equity in other capital adjustment changes of affiliates		—		—		2,706			—		—		—		2,706
Treasury stock (Note 16)		—		723		(14,137	)		—		—		—		(13,414	)
Loss on disposal of treasury stock (Notes 16 and 17)		—		—		94			—		—		—		94
Unrealized gain on valuation of long-term investment securities
(Notes 2 and 4)		—		—		—			(1,216,771	)	—		—		(1,216,771	)
Equity in other comprehensive income changes of affiliates, net
(Notes 2 and 5)		—		—		—			(70,490	)	—		—		(70,490	)
Foreign-based operations’ translation adjustment
(Note 2)		—		—		—			60,262		—		—		60,262
Gain on valuation of currency swap (Notes 2 and 27)		—		—		—			20,360		—		—		20,360
Gain on valuation of interest rate swap (Notes 2
and 27)		—		—		—			(28,427	)	—		—		(28,427	)
Increase in non-controlling interest in equity of consolidated
subsidiaries		—		—		—			—		—		1,165,957		1,165,957
Balance, December 31, 2008	W	44,639	W	2,958,854	W	(2,159,389	)	W	356,192	W	9,448,185	W	1,175,959	W	11,824,440
Balance, January 1, 2009	W	44,639	W	2,958,854	W	(2,159,389	)	W	356,192	W	9,448,185	W	1,175,959	W	11,824,440
Cash dividends (Note 20)		—		—		—			—		(609,203	)	—		(609,203	)
Interim dividends (Note 20)		—		—		—			—		(72,345	)	—		(72,345	)
Net income		—		—		—			—		1,247,182		(191,576	)	1,055,606
Equity in retained earnings changes of affiliates, net
(Notes 2 and 5)		—		—		—			—		(11,589	)	—		(11,589	)
Conversion rights (Notes 9 and 14)		—		73,622		—			—		—		—		73,622
Difference between the acquisition cost and the net book value
incurred from the capital transactions between companies under
common control (Note 2)		—		—		21,663			—		—		—		21,663
Equity in capital surplus changes of affiliates		—		193		—			—		—		—		193
Equity in capital adjustment changes of affiliates		—		—		(5,346	)		—		—		—		(5,346	)
Treasury stock (Note 16)		—		—		(28,939	)		—		—		—		(28,939	)
Loss on disposal of treasury stock (Notes 16 and 17)		—		(722	)	91,760			—		(92,477	)	—		(1,439	)
Unrealized gain on valuation of long-term investment securities
(Notes 2 and 4)		—		—		—			590,746		—		—		590,746
Equity in other comprehensive
income changes of affiliates, net (Notes 2 and 5)		—		—		—			(20,017	)	—		—		(20,017	)
Difference between the acquisition cost and net book value
incurred
from the business acquisition between companies under common
control		—		—		(666,635	)		—		—		—		(666,635	)
Foreign-based operations’ translation adjustment
(Note 2)		—		—		—			(41,753	)	—		—		(41,753	)
Gain on valuation of currency swap (Notes 2 and 27)		—		—		—			14,941		—		—		14,941
Gain on valuation of interest rate swap (Notes 2
and 27)		—		—		—			15,197		—		—		15,197
Increase in non-controlling interest in equity of consolidated
subsidiaries		—		—		—			—		—		205,483		205,483
Balance, December 31, 2009	W	44,639	W	3,031,947	W	(2,746,886	)	W	915,306	W	9,909,753	W	1,189,866	W	12,344,625

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								Accumulated
								Other				Non-		Total
	Common		Capital		Capital			Comprehensive		Retained		Controlling		Stockholders’
	Stock		Surplus		Adjustments			Income		Earnings		Interest		Equity
	(In millions of Korean won)
Balance, January 1, 2010	W	44,639	W	3,031,947	W	(2,746,886	)	W	915,306	W	9,909,753	W	1,189,866	W	12,344,625
Cash dividends (Note 20)		—		—		—			—		(607,698	)	—		(607,698	)
Interim dividends (Note 20)		—		—		—			—		(72,345	)	—		(72,345	)
Net income		—		—		—			—		1,379,613		(82,437	)	1,297,176
Difference between the acquisition cost and the net book value
incurred from the capital transactions between companies under
common control (Note 2)		—		—		(7,971	)		—		—		—		(7,971	)
Equity in capital surplus changes of affiliates		—		(167	)	—			—		—		—		(167	)
Equity in capital adjustment changes of affiliates		—		—		(28,637	)		—		—		—		(28,637	)
Treasury stock (Note 16)		—		—		(210,356	)		—		—		—		(210,356	)
Unrealized gain on valuation of long-term investment securities
(Notes 2 and 4)		—		—		—			(204,611	)	—		—		(204,611	)
Equity in retained earnings changes of affiliate		—		—		—			—		(5,924	)	—		(5,924	)
Equity in other comprehensive income changes of affiliates, net
(Notes 2 and 5)		—		—		—			4,597		—		—		4,597
Foreign-based operations’ translation adjustment
(Note 2)		—		—		—			(6,246	)	—		—		(6,246	)
Gain on valuation of currency swap (Notes 2 and 27)		—		—		—			(74,627	)	—		—		(74,627	)
Gain on valuation of interest rate swap (Notes 2
and 27)		—		—		—			5,213		—		—		5,213
Increase in non-controlling interest in equity of consolidated
subsidiaries		—		—		—			—		—		45,620		45,620
Balance, December 31, 2010	W	44,639	W	3,031,780	W	(2,993,850	)	W	639,632	W	10,603,399	W	1,153,049	W	12,478,649
	(In thousands of U.S. dollars) (Note 2 a)
Balance, January 1, 2010	$	39,483	$	2,681,715	$	(2,429,583	)	$	809,576	$	8,765,038	$	1,052,420	$	10,918,649
Cash dividends (Note 20)		—		—		—			—		(537,500	)	—		(537,500	)
Interim dividends (Note 20)		—		—		—			—		(63,989	)	—		(63,989	)
Net income		—		—		—			—		1,220,249		(72,915	)	1,147,334
Difference between the acquisition cost and the net book value
incurred from the capital transactions between companies under
common control (Note 2)		—		—		(7,050	)		—		—		—		(7,050	)
Equity in capital surplus changes of affiliates		—		(148	)	—			—		—		—		(148	)
Equity in other capital adjustment changes of affiliates		—		—		(25,329	)		—		—		—		(25,329	)
Treasury stock (Note 16)		—		—		(186,057	)		—		—		—		(186,057	)
Unrealized gain on valuation of long-term investment securities
(Notes 2 and 4)		—		—		—			(180,975	)	—		—		(180,975	)
Equity in retained earnings of consolidated subsidiary
previously accounted for as an equity method investee		—		—		—			—		(5,239	)			(5,239	)
Equity in other comprehensive income changes of affiliates, net
(Notes 2 and 5)		—		—		—			4,066		—		—		4,066
Foreign-based operations’ translation adjustment
(Note 2)		—		—		—			(5,525	)	—		—		(5,525	)
Gain on valuation of currency swap (Notes 2 and 27)		—		—		—			(66,007	)	—		—		(66,007	)
Gain on valuation of interest rate swap (Notes 2
and 27)		—		—		—			4,611		—		—		4,611
Increase in non-controlling interest in equity of consolidated
subsidiaries		—		—		—			—		—		40,351		40,351
Balance, December 31, 2010	$	39,483	$	2,681,567	$	(2,648,019	)	$	565,746	$	9,378,559	$	1,019,856	$	11,037,192

See accompanying notes to consolidated financial statements.

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SK TELECOM CO., LTD. AND SUBSIDIARIES

XBRL,cf CONSOLIDATED STATEMENTS OF CASH FLOWS

YEARS ENDED DECEMBER 31, 2008, 2009 AND 2010

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							of U.S. Dollars
	In Millions of Korean Won						(Note 2 a)
	2008		2009		2010		2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	W	972,338	W	1,055,606	W	1,297,176	$	1,147,334
Expenses not involving cash payments :
Provision for severance indemnities		92,501		55,711		86,797		76,771
Depreciation and amortization		2,755,360		2,730,008		2,868,768		2,537,385
Allowance for doubtful accounts		70,662		216,663		96,324		85,197
Foreign currency translation loss		132,152		5,314		1,785		1,579
Equity in losses of affiliates		47,104		88,597		59,070		52,247
Loss on disposal of account receivable-other		—		28,711		—		—
Loss on disposal of property, equipment
and intangible assets		70,307		91,496		69,841		61,773
Loss on transaction and valuation of derivatives		441,255		164,646		19,198		16,980
Amortization of discounts on bonds		31,572		31,736		39,265		34,729
Loss from discontinued operation		38,541		—		—		—
Other expenses		269,785		178,460		57,161		50,558
Sub-total		3,949,239		3,591,342		3,298,209		2,917,219
Income not involving cash receipts:
Foreign translation gain		428,575		122,268		16,813		14,871
Equity in earnings of affiliates		24,894		28,685		29,675		26,247
Gain on valuation of trading securities		—		14,086		—		—
Gain on disposal of property, equipment
and intangible assets		9,971		27,228		11,030		9,756
Gain on transactions and valuation of derivatives		265,144		109,306		7,951		7,033
Interest income		1,779		56,448		10,424		9,220
Gain from discontinued operation		—		5,524		4,388		3,881
Other		23,733		118,750		195,168		172,623
Sub-total		754,096		482,295		275,449		243,631
Changes in assets and liabilities related to operating
activities:
Accounts receivable — trade		68,214		(217,896	)	14,157		12,522
Accounts receivable — other		(384,298	)	(811,129	)	(475,547	)	(420,615	)
Inventories		(65,935	)	(187,673	)	(102,428	)	(90,596	)
Prepaid expenses		8,618		47,310		20,632		18,249
Advanced payments and other		(57,241	)	(18,775	)	(89,520	)	(79,179	)
Long-term accounts receivables — other		514		(284,085	)	213,479		188,819
Accounts payable		(102,436	)	190,718		167,995		148,589
Income taxes payable		118,011		73,431		(154,488	)	(136,642	)
Accrued expenses		405,081		292,573		204,507		180,884
Withholdings		70,431		(36,382	)	133,643		118,205
Current portion of subscription deposits		(1,519	)	(560	)	(42,351	)	(37,459	)
Advance receipts and other		(24,004	)	15,507		20,350		17,999
Deferred income taxes		(194,416	)	(254,891	)	(121,182	)	(107,184	)
Dividends received from affiliates		1,214		—		3,402		3,009
Severance indemnity payments		(106,241	)	(37,953	)	(63,185	)	(55,886	)
Deposits for group severance indemnities and other		(610,456	)	(2,215	)	(28,379	)	(25,101	)
Sub-total		(874,463	)	(1,232,020	)	(298,915	)	(264,386	)
Net Cash Provided by Operating Activities		3,293,018		2,932,633		4,021,021		3,556,536

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CONSOLIDATED STATEMENTS OF CASH FLOWS — (Continued)

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								of U.S. Dollars
	In Millions of Korean Won							(Note 2 a)
	2008			2009		2010		2010
CASH FLOWS FROM INVESTING ACTIVITIES:
Cash inflows from investing activities:
Decrease in short-term investment securities, net	W	(4,767	)	W	14,130	W	168,316	$	148,873
Decrease in short-term financial instruments, net		174,441			—		—		—
Collection of short-term loans		212,896			349,658		223,704		197,863
Proceeds from sales of long-term investment securities		382,740			1,966,866		713,873		631,411
Collection of long-term loans		10,646			43,183		18,561		16,417
Decrease in long-term financial instruments		16,159			10,809		299		264
Proceeds from sales of equity securities accounted
for using the equity method		8,292			10,663		58,431		51,681
Proceeds from disposal of consolidated subsidiary		—			166		—		—
Decrease in guarantee deposits		26,201			38,304		109,010		96,418
Decrease in other non-current assets		37,667			41,111		25,788		22,809
Proceeds from disposal of property and equipment		45,057			66,934		94,670		83,734
Proceeds from disposal of intangible assets		9,425			5,007		6,971		6,166
Cash inflows from transaction of derivatives		727			86,094		1,255		1,110
Sub-total		919,484			2,632,925		1,420,878		1,256,746
Cash outflows from investing activities:
Increase in short-term financial instruments, net	W	—		W	2,994	W	199,576	$	176,522
Increase in short-term investment securities, net		40			—		—		—
Increase in short-term loans		239,413			260,071		221,338		195,770
Increase in long-term financial instruments		6,080			6,516		55		49
Acquisition of long-term investment securities		28,910			539,036		146,941		129,967
Increase in long-term loans		34,090			20,766		36,052		31,887
Acquisition of equity securities accounted for using
the equity method		595,281			107,401		693,945		613,785
Increase in equity of consolidated subsidiaries		1,093,104			—		—		—
Increase in guarantee deposits		57,287			60,597		122,098		107,994
Increase in other non-current assets		94,623			107,835		52,964		46,845
Acquisition of property and equipment		2,236,440			2,162,255		2,144,674		1,896,934
Acquisition of intangible assets		147,680			118,828		126,653		112,023
Acquisition of lease line business		—			894,783		—		—
Cash outflows from transaction of currency swap		263,495			177,848		35,260		31,187
Sub-total		4,796,443			4,458,930		3,779,556		3,342,963
Net Cash Used in Investing Activities		(3,876,959	)		(1,826,005	)	(2,358,678	)	(2,086,217	)

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CONSOLIDATED STATEMENTS OF CASH FLOWS — (Continued)

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							of U.S. Dollars
	In Millions of Korean Won						(Note 2 a)
	2008		2009		2010		2010
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash inflows from financing activities:
Issuance of bonds payable	W	1,307,679	W	1,114,938	W	148,308	$	131,176
Proceeds from short-term borrowings		468,958		348,505		289,246		255,834
Proceeds from long-term borrowings		510,577		9,885		108,044		95,563
Increase in guarantee deposits received and other		4,533		18,228		53,656		47,459
Proceeds from disposal of treasury stock		42,246		—		—		—
Increase in equity of consolidated subsidiaries		64,403		76,938		—		—
Sub-total		2,398,396		1,568,494		599,254		530,032
Cash outflows from financing activities:
Repayment of short-term borrowings		—		1,007,618		324,327		286,863
Repayment of current portion of long-term debt		558,107		851,142		579,334		512,413
Repayment of long-term borrowings		193,400		111,560		235,281		208,103
Repayment of bonds payable		—		60,216		365,140		322,961
Payment of dividends		682,504		681,548		680,043		601,489
Acquisition and retirement of treasury stock		62,134		28,939		210,356		186,057
Decrease in equity of consolidated subsidiaries		24,862		10,211		9,025		7,982
Other		10,567		24,251		14,036		12,414
Sub-total		1,531,574		2,775,485		2,417,542		2,138,282
Net Cash Provided by (Used in) Financing Activities		866,822		(1,206,991	)	(1,818,288	)	(1,608,250	)
THE EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH
EQUIVALENTS HELD IN FOREIGN CURRENCIES (Note 2)		37,371		(7,405	)	(5,222	)	(4,619	)
NET INCREASE IN CASH AND CASH EQUIVALENTS DUE TO CHANGES IN
CONSOLIDATED SUBSIDIARIES		36,413		46,258		(18,242	)	(16,135	)
PREACQUISITION CASH FLOWS OF SUBSIDIARIES		17,250		—		(23,406	)	(20,702	)
CASHFLOWS FROM DISCONTINUED OPERATION (Note 2)		(248,437	)	3,969		27,398		24,233
NET INCREASE(DECREASE) IN CASH AND CASH EQUIVALENTS		125,478		(57,541	)	(175,417	)	(155,154	)
CASH AND CASH EQUIVALENTS AT BEGINNING OF THE YEAR (Note 28)		885,989		1,011,467		953,926		843,734
CASH AND CASH EQUIVALENTS AT END OF THE YEAR (Note 29)	W	1,011,467	W	953,926	W	778,509	$	688,580

See accompanying notes to consolidated financial statements.

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SK TELECOM CO., LTD. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

YEARS ENDED DECEMBER 31, 2008, 2009 AND 2010

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1. GENERAL

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SK Telecom Co., Ltd. (“SK Telecom”) was incorporated in March 1984 under the laws of Korea to engage in providing cellular telephone communication services in the Republic of Korea. SK Telecom Co., Ltd. and its subsidiaries (the “Company”) mainly provide wireless telecommunications in the Republic of Korea. The Company’s common shares and depositary receipts (DRs) are listed on the Stock Market of Korea Exchange, the New York Stock Exchange and London Stock Exchange. As of December 31, 2010, the Company’s total issued shares are held by the following:

Number of Shares	Total Shares Issued (%)
(Unaudited)
SK Group	18,748,452	23.22
POSCO	2,341,569	2.90
Institutional investors and other minority stockholders	50,004,978	61.93
Treasury stock	9,650,712	11.95
	80,745,711	100.00

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1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

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The consolidated financial statements of the Company have been prepared in conformity with accounting principles generally accepted in the Republic of Korea. Significant accounting policies followed in preparing the accompanying consolidated financial statements are summarized as follows:

a. Basis of Presentation

The Company maintains its official accounting records in Republic of Korean won (Korean won) and prepares statutory consolidated financial statements in conformity with the accounting principles generally accepted in the Republic of Korea (“Korean GAAP”) and in the Korean language (Hangul). Certain accounting principles applied by the Company that conform with financial accounting standards and accounting principles in the Republic of Korea may not conform with accounting principles generally accepted in other countries. Accordingly, these consolidated financial statements are intended for use by those who are informed about Korean accounting principles and practices. The accompanying consolidated financial statements have been condensed, restructured and translated into English with certain expanded descriptions from the Korean language financial statements. Certain information included in the Korean language financial statements, but not required for a fair presentation of the Company’s financial position, results of operations, changes in stockholders’ equity or cash flows, is not presented in the accompanying consolidated financial statements.

The accompanying consolidated financial statements are stated in Korean won, the currency of the country in which the Company is incorporated and operates. The translation of Korean won amounts into U.S. dollar amounts is included solely for the convenience of readers of financial statements and has been made at the rate of W 1,130.60 to US$1.00, the Noon Buying Rate in the City of New York for cable transfers in Korean won as certified for customs purposes by the Federal Reserve Bank of New York on the last business day of the year ended December 31, 2010. Such translations into U.S. dollars should not be construed as representations that the Korean won amounts could be converted into U.S. dollars at that or any other rate.

b. Principles of Consolidation

The consolidated financial statements include the accounts of SK Telecom and the following controlled subsidiaries as of December 31, 2008, 2009 and 2010. Controlled subsidiaries include (a) majority-owned entities by SK Telecom or its controlled subsidiaries and (b) other entities where SK Telecom or its controlled subsidiaries

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

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own more than 30% of total outstanding common stock and is the largest stockholder. Meanwhile, if the total assets of the controlled subsidiaries at the beginning of fiscal year were less than W 10 billion, those investees are excluded and accounted for using the equity method in accordance with Korean GAAP. All intercompany balances and transactions have been eliminated in the consolidation procedures.

Subsidiary	Year of — Establishment	Primary Business	Ownership Percentage (%) — 2008	2009	2010
SK Broadband Co., Ltd.	1997	Telecommunication services	43.4	50.6	50.6
SK Communications Co., Ltd.	1999	Internet website services	65.7	64.8	64.7
SK Telink Co., Ltd.	1998	Telecommunication services	90.8	90.8	83.5
PS&Marketing Corporation	2009	Communications device retail business	—	100.0	100.0
PAXNet Co., Ltd.	1999	Internet website services	59.7	59.7	59.7
F&U Credit information Co., Ltd.	1998	Credit and collection services	50.0	50.0	50.0
Loen Entertainment, Inc.	1982	Release of music disc	63.5	63.5	63.5
Ntreev Soft Co., Ltd.	2003	Game software	63.7	63.7	63.7
Commerce Planet Co., Ltd.	1997	Online shopping mall operation agency	100.0	100.0	100.0
Stonebridge Cinema Fund	2005	Investment association	72.2	72.2	57.0
SK i-media Co., Ltd.	2006	Game software	100.0	100.0	100.0
Broadband Media Co., Ltd.	1997	Multimedia contents	100.0	100.0	100.0
Broadband CS Co., Ltd.	1998	Telemarketing services	—	100.0	100.0
Service ace Co., Ltd.	2010	Telemarketing services	—	—	100.0
Service Top Co., Ltd.	2010	Telemarketing services	—	—	100.0
Network O&S Co., Ltd.	2010	Network managed services	—	—	100.0
K-net Culture and Contents Venture Fund	2008	Investment association	59.0	59.0	59.0
2nd Benex Focus Investment Fund	2008	Investment association	66.7	66.7	66.7
Benex Movie Expert Fund	2009	Investment association	46.6	46.6	46.6
Open Innovation Fund	2008	Investment association	98.5	98.5	98.9
Benex Sector Limited Partnership IV	2008	Investment association	—	—	49.7
BMC Digital Culture and Contents Fund	2008	Investment association	39.8-	39.8	39.8
The Contents Com Co., Ltd.	2005	Software	—	—	100.0
PREGM Co., Ltd.	1999	Production of movies and videos	—	—	56.7
SK Telecom China Holdings Co., Ltd.	2007	Investment	100.0	100.0	100.0
Sky Property Mgmt., Ltd.	2008	Real Estate Investment	60.0	60.0	60.0
Shenzhen E-eye High
Tech Co., Ltd.	2000	Manufacturing	65.5	65.5	65.5
SKT Vietnam PTE., Ltd.	2000	Telecommunication services	73.3	73.3	73.3
SKT Americas, Inc.	1995	Internet website services	100.0	100.0	100.0
SK Telecom Global Investment B.V	2008	Investment Association	100.0	100.0	100.0
Technology Venture Fund, LP	2010	Research and Development	—	—	100.0
YTK Investment Ltd	2010	Investment Association	—	—	100.0
SK Technology Innovation Company	2010	Research and Development	—	—	49.0

Effective January 1, 2010, Service ace Co., Ltd., Service Top Co., Ltd., Network O&S Co., Ltd. and YTK Investment Ltd. are included in the consolidation of the accompanying consolidated financial statements as these companies are the wholly-owned subsidiaries of the Company. SK Technology Innovation Company is included in the consolidation of the accompanying consolidation financial statements as the Company owns more than 30% of total outstanding common stock and became the largest stockholder.

Effective January 1, 2010, Technology Venture Fund, LP. and Broadband CS Co., Ltd., are included in the consolidation of the accompanying consolidated financial statements as their total assets at the beginning of that fiscal year were more than W 10 billion, in accordance with Korean GAAP.

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For the year ended December 31, 2010, Benex Sector Limited Partnership IV, The Contents Com Co., Ltd. and PREGM Co., Ltd. are included in the consolidation of the accompanying consolidated financial statements as the Company acquired controlling equity interest of the companies.

Effective January 1, 2010, The Second Music Investment Fund of SK-PVC, SK Telecom China Co., Ltd. and SK Telecom Advanced Tech & Service Center (STC) are excluded from the consolidation as its total assets at the beginning of that fiscal year were less than W 10 billion, in accordance with Korean GAAP and are subsequently accounted for under the equity method.

On April 26, 2010, the Company disposed of 11,170,014 shares of IHQ, Inc. and as of December 31, 2010 has 3,790,330 shares, 9.4% of IHQ, Inc., remaining.

SK-KTB Music Investment Fund is excluded from the consolidation as the Company liquidated SK-KTB Music Investment Fund during October 2010, SK-KTB Music Investment Fund’s operation in the consolidated income statement is treated as a discontinued operation, and accordingly is presented as a single item between income tax expenses for continuing operation and net income. Refer to Note 2(ab)

TU Media Corp. is excluded from the consolidation as it merged into SK Telink Co., Ltd. during the year ended December 31, 2010.

c. Cash Equivalents

Cash equivalents are highly liquid investments and short term financial instruments, which are readily convertible without significant transaction cost, do not have significant risk from changes in interest rates, and with original maturities of three months or less.

d. Allowance for Doubtful Accounts

Allowance for doubtful accounts is provided based on the estimated collectability of individual accounts and historical bad debt experience.

Details of changes in the allowance for doubtful accounts receivable — trade for 2008, 2009 and 2010 are as follows (in millions of Korean won):

Beginning balance	2008 — W	93,551	W	150,320	W	233,078
Write-offs		(50,065	)	(115,720	)	(64,969	)
Net		43,486		34,600		168,109
Provision for doubtful accounts receivable-trade		61,662		199,933		79,972
Provision for doubtful accounts receivable-trade for the
discontinued operation		1,311		158		16
Increase (decrease) due to the changes in consolidated
subsidiaries		43,861		(1,613	)	881
End of year	W	150,320	W	233,078	W	248,978

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e. Inventories

Inventories are stated at the acquisition cost using the following methods:

Assets	Methods
Inventories from E-commerce business	Moving average method
Replacement units for wireless telecommunication facilities and
supplies for sales promotion	Moving average method
Wireless device	Individual method
Books and CDs	FIFO

During the year, perpetual inventory systems are used to value inventories, which are adjusted to the physical inventory counts performed at the year end. When the market value of inventories is less than the acquisition cost, the carrying amount is reduced to the market value and any difference is charged to current operations as operating expenses. Valuation loss of W 921 million was recorded for the year ended December 31, 2010 and reversal of allowance for inventory valuation loss of W 168 million and W 373 million were recorded for the years ended December 31, 2008 and 2009, respectively.

f. Securities (Excluding Equity Securities Accounted for Using the Equity Method)

Debt and equity securities are initially recorded at their acquisition costs (fair value of consideration paid) including incidental cost incurred in connection with acquisition of the related securities and classified into trading, available-for-sale and held-to-maturity (debt only) securities depending on the acquisition purpose and nature.

Trading securities are stated at fair value with gains or losses on valuation reflected in current operations.

Securities classified as available-for-sale are reported at fair value. Unrealized gains or losses on valuation of available-for-sale securities are included in accumulated other comprehensive income (loss) and the unrealized gains or losses are reflected in net income when the securities are sold as a part of gain (loss) on disposal of investment assets or if there is an objective evidence of impairment such as bankruptcy of investees as an impairment loss. Equity securities are stated at acquisition cost if fair value cannot be reliably measured.

Held-to-maturity securities are presented at acquisition cost after premiums or discounts are amortized or accreted, respectively. The Company recognizes write-downs resulting from declines in the fair value below its book value on the end of the reporting period if there is objective evidence of impairment. The related write-downs are recorded as a loss on impairment of investment securities.

Trading securities are presented in the current asset section of the Statements of financial position, and available-for-sales and held-to-maturity securities are presented in the current asset section of the Statements of financial position if their maturities are within one year; otherwise such securities are recorded in the non-current section of the Statements of financial position.

g. Equity Securities Accounted for Using the Equity Method of Accounting

Investment securities of affiliated companies, in which the Company has the ability to exercise significant influence, are carried using the equity method of accounting, whereby the Company’s initial investment is recorded at cost and the carrying value is subsequently increased or decreased to reflect the Company’s portion of stockholders’ equity of the investee. Differences between the acquisition cost and net asset fair value of the investee are amortized over 5 to 20 years using the straight-line method. When applying the equity method of accounting, unrealized inter-company gains and losses are eliminated and charged or credited to current operation.

Assets and liabilities of foreign-based companies accounted for using the equity method are translated at current rate of exchange at the end of the reporting period while profit and loss items in the statement of earnings are translated at average rate and capital account at historical rate. The translation gains and losses arising from

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collective translation of the foreign currency financial statements of foreign-based companies are offset and the balance is remained as accumulated other comprehensive income (loss) in the Company’s stockholders’ equity.

Under the equity method of accounting, the Company does not record its share of losses of an affiliate when such losses would make the Company’s investment in such entity less than zero unless the Company has guaranteed obligations of the investee or is otherwise committed to provide additional financial support. The Company provides for additional losses for these investments accounted for using the equity method that are reduced to zero to the extent that the Company has other investment assets related to the equity method investees. In addition, when the Company’s share of equity interest in the equity method investees increases as a result of capital transactions of the investees with (or without) consideration, the increase in the Company’s proportionate shares in the investees are treated as goodwill or negative goodwill and when the Company’s share of equity interest in the equity method investees decrease as a result of capital transactions of the investees with (or without) consideration, the decrease in the Company’s proportionate shares in the investees are accounted for as gain or loss on disposal.

h. Valuation of Long-term Accounts Receivable — Other

Long-term accounts receivable are stated at the present value of the expected future cash flows. Imputed interest amounts are recorded in present value discount accounts which are deducted directly from the related nominal receivable balances. Such imputed interest is included in operations using the effective interest rate method over the collection period.

i. Property and Equipment

Property and equipment are stated at cost less accumulated depreciation. Major renewals and betterments, which prolong the useful life or enhance the value of assets, are capitalized; expenditures for maintenance and repairs are charged to expense as incurred.

Depreciation is computed using the declining balance method (except for buildings and structures acquired on or after January 1, 1995 which are depreciated using the straight-line method) over the estimated useful lives of the related assets as follows:

Assets	Depreciation Method	Useful Lives (Years)
Buildings and structures	Declining balance method (straight-line method)	15 ~ 50
Machinery	Declining balance method	3 ~ 15
Other	Declining balance method	4 ~ 9

Interest expenses and other financing charges for borrowings related to the manufacture or construction of property and equipment are charged to current operations as incurred.

j. Intangible Assets

Intangible assets are stated at cost less amortization computed using the straight-line method over 2 to 20 years.

The Company capitalizes the cost of internal-use software which has a useful life in excess of one year. Capitalized internal-use software costs are amortized using the straight-line method over 5 years and are recorded in intangible assets.

k. Government Subsidy

Government subsidy which has been received, in cash, that has not been used as of the reporting period end, is presented on the face of the statements of financial position, as net of cash and cash equivalents.

For government subsidy which has been used for the acquisition of certain assets, is accounted for as a deduction from the acquisition cost of the acquired assets. Such subsidy amount is offset against the depreciation or

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amortization of the acquired assets during such assets’ useful life. Government subsidy, which is required to be repaid, is recorded as a liability in the Statements of financial position. Government subsidy with no repayment obligation, which is used to purchase a designated asset or to develop a certain technology, is presented as a deduction of the related asset and is amortized against the depreciation or amortization expense of the related asset. Government subsidy, contributed to compensate for specific expenses, is offset against the related expenses as incurred.

l. Impairment Losses

When there is any indication of impairment such as significant decrease in the market value of an asset and carrying amount of property and equipment exceeds their estimated total future non-discounted cash flows from continued use or disposal, the carrying value is reduced to the recoverable amount, determined as present value of future cash flows, and any difference is charged to current operation as an impairment losses.

When the recoverable amount of assets (that are not recorded at fair value) including investment assets (except for trading and available-for-sale investments in listed companies) and intangible assets are significantly less than the carrying value due to obsolescence, physical damage, decline in market value or other causes, the carrying value is reduced to the recoverable amount and any difference is charged to current operation as an impairment losses. Impairment losses for the years ended December 31, 2008, 2009 and 2010 were W 12,733 million, W 7,256 million and W 31,864 million, respectively.

m. Convertible Bonds and Bonds with Stock Purchase Warrants

The proceeds from issuance of convertible bonds are allocated between the conversion rights or warrant rights and the debt issued; the portion allocable to the conversion rights is accounted for as capital surplus with a corresponding conversion right adjustment which is deducted from the related bonds. Such conversion right adjustment is amortized to interest expense using the effective interest rate method over the redemption period of the convertible bonds. The portion allocable to the conversion rights is measured by deducting the present value of the debt at time of issuance from the gross proceeds from issuance of convertible bonds, with the present value of the debt being computed by discounting the expected future cash flows (including call premium, if any) using the effective interest rate applied to ordinary or straight debt of the Company at the issuance date.

n. Discounts on Bonds

Discounts on bonds are amortized to interest expense using the effective interest rate method over the redemption period of the bonds.

o. Valuation of Long-term Payables

Long-term payables resulting from long-term installment transactions are stated at present value of the expected future cash flows. Imputed interest amounts are recorded in present value discount accounts which are deducted directly from the related nominal payable balances. Such imputed interest is included in operations using the effective interest rate method over the redemption period.

p. Provisions, Contingent Liabilities and Contingent Assets

The Company recognizes a provision when i) it has a present obligation as a result of a past event, ii) it is probable that a disbursement of economic resources will be required to settle the obligation, and iii) a reliable estimate can be made of the amount of the obligation (See Note 26). When a possible range of loss in connection with a probable loss contingency as of the end of the reporting period is estimable with reasonable certainty, and some amount within that range appears at the time to be a better estimate than any other amount within the range, the

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Company accrues such amount. When no amount within the range appears to be a better estimate than any other amount, the minimum amount in that range is recorded.

The Company does not recognize the following contingent obligations as liabilities:

| • | Possible obligations related to past events, for which the
existence of a liability can only be confirmed upon occurrence
of uncertain future event or events outside the control of the
Company. |
| --- | --- |
| • | Present obligations arising from past events or transactions,
for which i) a disbursement of economic resources to
fulfill such obligations is not probable or ii) a
disbursement of economic resources is probable, but the related
amount cannot be reasonably estimated. |

In addition, the Company does not recognize potential assets related to past events or transactions, for which the existence of an asset or future benefit can only be confirmed upon occurrence of uncertain future event or events outside the control of the Company.

q. Accrued Severance Indemnities

In accordance with the policies of the Company, all employees with more than one year of service are entitled to receive severance indemnities, based on length of service and rate of pay, upon termination of their employment. Accruals for severance indemnities are recorded to approximate the amount required to be paid if all employees were to terminate at the end of the reporting period.

SK Telecom and certain domestic subsidiaries have deposits with insurance companies to fund the portion of the employees’ severance indemnities which is in excess of the tax deductible amount allowed under the Corporate Income Tax Law, in order to take advantage of the additional tax deductibility for such funding. Such deposits with outside insurance companies, where the beneficiaries are their employees, totaling W 68,559 million, W 76,383 million and W 96,266 million as of December 31, 2008, 2009 and 2010, respectively, are deducted from accrued severance indemnities.

In accordance with the Korean National Pension Fund Law, SK Telecom and its domestic subsidiaries transferred a portion of its accrued severance indemnities to the National Pension Fund through March 1999. Such transfers, amounting to W 27 million, W 6 million and W 6 million as of December 31, 2008, 2009 and 2010, respectively, are deducted from accrued severance indemnities.

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Changes in accrued severance indemnities for 2008, 2009 and 2010 are as follows (in millions of Korean won):

Beginning net balance	2008 — W	44,322	W	53,815	W	57,655
Provision for continuing operation		92,501		55,711		86,797
Provision for discontinued operation		593		372		276
Payments to employees for continuing operation		(106,241	)	(37,953	)	(63,185	)
Payments to employees for discontinued operation		(796	)	(403	)	(381	)
Net increase (decrease) due to the changes in consolidated
subsidiaries		44,718		(4,349	)	1,360
Changes in deposits for severance indemnities		(21,282	)	(9,538	)	(19,618	)
Ending net balance	W	53,815	W	57,655	W	62,904
Ending balance:
Accrued severance indemnities	W	122,401	W	134,044	W	159,176
Deposits with insurance companies		(68,559	)	(76,383	)	(96,266	)
National Pension Fund		(27	)	(6	)	(6	)
Net balance	W	53,815	W	57,655	W	62,904

r. Accounting for Leases

A lease is classified as a finance lease or an operating lease depending on the extent of transfer to the Company of the risks and rewards incidental to ownership. If a lease meets any one of the following criteria, it is accounted for as a finance lease:

| • | The lease transfers ownership of the asset to the lessee by the
end of the lease term; |
| --- | --- |
| • | The lessee has the option to purchase the asset at a bargain
price and it is certain that the option will be exercised; |
| • | The lease term is for the major part (75% or more) of the
economic life of the asset even if title is not transferred; |
| • | At the date of lease commencement, the present value of the
minimum lease payments amounts to at least substantially all
(90% or more) of the fair value of the leased asset; or |
| • | The leased assets are of such a specialized nature that only the
lessee can use them without major modifications. |

All other leases are treated as operating leases.

Assets and liabilities related to finance leases are recorded as property and equipment and obligations under finance leases, respectively, and the related interest is calculated using the effective interest rate method and charged to expense. For operating leases, the future minimum lease payments are expensed ratably over the lease term while contingent rentals are expensed as incurred.

s. Research and Development Costs

The Company charges substantially all research and development costs to expense as incurred. The Company incurred internal research and development costs of W 226,713 million, W 236,269 million and W 270,378 million for the years ended December 31, 2008, 2009 and 2010, respectively, and external research and development costs

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of W 72,993 million, W 56,867 million and W 81,582 million for the years ended December 31, 2008, 2009 and 2010, respectively.

t. Foreign-based Operations’ Translation Adjustment

In translating the foreign currency financial statements of the Company’s overseas subsidiaries into Korean won, the Company presents the translation gain or loss as a foreign-based operations’ translation adjustment in the accumulated other comprehensive income (loss) section of the Statements of financial position. The translation gain or loss arises from the application of different exchange rates; the year-end rate for Statements of financial position items except stockholders’ equity, the historical rate for stockholders’ equity and the daily average rate for statement of income items.

u. Accounting for Foreign Currency Transactions and Translation Adjustment

SK Telecom and its domestic subsidiaries maintain their accounts in Korean won. Transactions in foreign currencies are recorded in Korean won based on the prevailing rate of exchange at the dates of transactions. As allowed under Korean GAAP, monetary assets and liabilities denominated in foreign currencies are translated in the accompanying consolidated financial statements at the Base Rates announced by Seoul Money Brokerage Services, Ltd. on the end of the reporting periods, which, for U.S. dollars, were W 1,257.50=US$1, W 1,167.60=US$1 and W 1,138.90=US$1 at December 31, 2008, 2009 and 2010, respectively. The resulting gains and losses arising from the translation or settlement of such assets and liabilities are included in current operations.

v. Derivative Instruments

The Company records rights and obligations arising from derivative instruments as assets and liabilities, which are stated at fair value.

For derivative instruments designated as hedges; items that hedge against the exposure of variable cash flows, the effective portions of the gains or losses on the hedging instruments are recorded as part of accumulated other comprehensive income (loss) and credited/charged to operations at the time the hedged transactions affect earnings, and the ineffective portions of the gains or losses are charged immediately to current earnings.

The gains and losses that result from the change in the fair value of derivative instruments are reported in current earnings.

w. Revenue Recognition

The Company recognizes revenue when they are realized or realizable and earned. Revenues are realized or realizable and earned when the Company has persuasive evidence of an arrangement, the goods have been delivered or the services have been rendered to the customer, sales price is fixed or determinable and collectability is reasonably assured.

The Company’s revenue is principally derived from telecommunication service including data services and wireless device sales. Telecommunication service consists of fixed monthly charges, usage-related charges and non-refundable activation fees. Fixed monthly charges are recognized in the period earned. Usage-related charges are recognized at the time services are rendered. Non-refundable activation fees are recognized when the activation service was performed.

Meanwhile, the Company recognizes sales revenues on a gross basis when the Company is the primary obligator in the transactions with customers and if the Company merely acts an agent for the buyer or seller from whom it earns a commission, then sales revenues are recognized on a net basis.

SK Telecom’s subsidiaries also sell products and merchandises to customers and these sales are recognized at the time products and merchandises are delivered.

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x. Income Taxes

Income tax expense is determined by adding or deducting the total income tax and surtaxes to be paid for the current period and the changes in deferred income tax assets and liabilities.

Deferred tax is recognized on differences between the carrying amounts of assets and liabilities in the consolidated financial statements and the corresponding tax bases used in the computation of taxable profits. Deferred tax liabilities are generally recognized for all taxable temporary differences and deferred tax assets are recognized to the extent that it is probable that taxable profits will be available against which the deductible temporary differences can be utilized. The carrying amount of deferred tax assets is reduced to the extent that it is no longer probable that sufficient taxable profits will be available to allow all or part of the assets to be recovered. Deferred income tax assets and liabilities are classified into current and non-current based on the classification of related assets or liabilities for financial reporting purposes.

y. Net Income Per Share

Net income per share is computed by dividing net income by the weighted average number of common shares outstanding during the period. Diluted net income per share of common stock is calculated by dividing adjusted net income by adjusted weighted average number of shares outstanding during the period, taking into account the dilutive effect of stock option and convertible bonds.

z. Handset Subsidies to Long-term Mobile Subscribers

Effective April 1, 2008, the Telecommunication Business Act was revised to allow wireless carriers to provide handset subsidies to customers without any restrictions. As a result, the Company provides lump-sum handset subsidies to customers who agree to use the Company’s service for the predetermined service period and the subsidies are charged to commission paid (operating expense) as the related payments are made. In case where the customers agree to use the Company’s service for the predetermined service period and purchase handsets on installment basis, the subsidies are paid every month over the installment period and the Company provides provision for handset subsidies estimated to be paid based on historical experience (See note 26).

aa. Use of Estimates

The Company’s management makes reasonable estimates and assumptions in preparing the financial statements in conformity with accounting principles generally accepted in the Republic of Korea. These estimates and assumptions can change according to additional experiences, changes in circumstances, new information and other and could differ from actual results.

ab. Discontinued Operation

When a subsidiary is disposed during the year, the results of its operations are treated as a discontinued operation in the consolidated income statement and presented as a separate item between income tax expense for continuing operation and net income. Meanwhile, comparative financial statements for the years ended December 31, 2008 and 2009 were restated and separately present discontinued operation and cash flows relating to discontinued operation for the current year.

As a result of resolution of the Board of Directors on April 26, 2010, the Company sold its shares of IHQ Inc., a subsidiary of the Company. Accordingly, the Company presents the related income and loss in aggregate with other

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discontinued operations during the period, as a separate item. The results of the IHQ Inc.’s discontinued operation for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

Revenue	2008 — W	44,828		2009 — W	42,954		2010 — W	19,357
Operating expense		(53,825	)		(45,695	)		(21,137	)
Other income (expense)		(7,674	)		(2,053	)		5,280
Income tax benefit		—			—			—
Net loss (income)	W	(16,671	)	W	(4,794	)	W	3,500

Cash flows from IHQ, Inc.’s discontinued operation for the years ended December 31, 2008, 2009, and 2010 are as follows (In millions of Korean won):

Operating activities	2008 — W	1,510	W	162	W	472
Investing activities		(4,035	)	(119	)	17,729
Financing activities		2,596		1,900		—
Net	W	71	W	1,943	W	18,201

As the Company liquidated SK-KTB Music Investment fund (“SK-KTB”), a subsidiary of the Company, during October 2010, the Company presents the related income and loss in aggregate with other discontinued operations during the period, as a separate item. The details from SK-KTB’s discontinued operation for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

Revenue	2008 — W	83		2009 — W	165		2010 — W	915
Operating expense		(166	)		(114	)		(280	)
Other income (expense)		(394	)		(511	)		253
Income tax expense		—			—			—
Net income	W	(477	)	W	(460	)	W	888

Cash flows from SK-KTB’s discontinued operation for the years ended December 31, 2008, 2009, and 2010 are as follows (In millions of Korean won):

Operating activities	2008 — W	862	2009 — W	516		2010 — W	920
Investing activities		5,735		(2,103	)		8,277
Financing activities		—		—			—
Net	W	6,597	W	(1,587	)	W	9,197

As a result of resolution of the board of directors on July 23, 2009, SK Communications Co., Ltd., a subsidiary of the Company, sold the Spicus division and the Company’s telephone english education division (“Spicus”), to

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Spicus Inc., a subsidiary of Altos Ventures, on August 1, 2009. The results of the Spicus’ discontinued operation for the years ended December 31, 2008 and 2009 are as follows (in millions of Korean won):

Revenue	2008 — W	3,384		2009 — W	2,770
Operating expense		(5,120	)		(3,653	)
Other income (expense)		—			671
Income tax expense		477			51
Net income	W	(1,259	)	W	(161	)

Cash flows from Spicus’ discontinued operation for the years ended December 31, 2008 and 2009 are as follows (In millions of Korean won):

Operating activities	2008 — W	(1,531	)	2009 — W	(1,069	)
Investing activities		(23	)		(112	)
Financing activities		—			—
Net	W	(1,554	)	W	(1,181	)

SK Communications Co., Ltd., a subsidiary of the Company, sold all shares of Etoos Co., Ltd. to Cheong Sol as a resolution of the Board of Directors on October 19, 2009 and, as the payment, received a convertible bond, the face value of W 50 billion. As a result, the Company presented its business of Etoos Co., Ltd. as discontinued operation and the details from Etoos Co., Ltd’s discontinued operation for the years ended December 31, 2008 and 2009 are as follows (in millions of Korean won):

Revenue	2008 — W	21,676	W	19,357
Operating expense		(18,699	)	(20,547	)
Other income (expense)		(2,874	)	15,782
Income tax expense		(28	)	(3,653	)
Net income	W	75	W	10,939

Cash flows from Etoos Co., Ltd.’s discontinued operation for the years ended December 31, 2008 and 2009 are as follows (In millions of Korean won):

Operating activities	2008 — W	3,076	W	224
Investing activities		(112	)	4,570
Financing activities		—		—
Net	W	2,964	W	4,794

On August 22, 2008, the Company disposed of its investment in Helio LLC (“Helio”) which was incorporated to provide cellular telephone communication service in the US to Virgin Mobile USA in accordance with the agreement entered into on June 27, 2008. As a result, the operation of Helio was presented as discontinued operation

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and, the details from Helio’s discontinued operation for the years ended December 31, 2007 and 2008 are as following (in millions of Korean won):

Revenue	2008 — W	116,607
Operating expense		(230,478	)
Other income (expense)		(15,917	)
Income tax expense		109,579
Preacquisition net loss for subsidiary		—
Net income	W	(20,209	)

Cash flows from Helio’s discontinued operation for the year ended December 31, 2008 are as follows (In millions of Korean won):

Operating activities	2008 — W	(213,899	)
Investing activities		(51,631	)
Financing activities		9,015
Net	W	(256,515	)

ac. Reclassification in the prior year’s financial statements

For the purpose of improving the quality of the Company’s report, certain reclassifications have been made in the prior year’s financial statements to conform to the classifications used in the current year. The reclassification of prior year’s financial statements had no impact on equity or net income.

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1. INVENTORIES

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Inventories as of December 31, 2008, 2009 and 2010 consist of the following (in millions of Korean won):

Merchandise	2008 — W	17,032	W	114,015	W	144,647
Finished goods		4,079		2,324		3,406
Semi-finished goods		509		618		475
Raw materials		13		836		2,236
Supplies		14,105		2,488		1,077
Total		35,738		120,281		151,841
Less allowance for valuation loss		(764	)	(391	)	(2,198	)
Net	W	34,974	W	119,890	W	149,643

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1. INVESTMENT SECURITIES

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a. Short-term Investment Securities

Short-term investment securities as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

	Acquisition Cost		Fair Value
	at December 31,		at December 31,		Carrying Amount
	2010		2010		2008		2009		2010
Trading Securities (Note)	W	200,000	W	200,000	W	367,001	W	370,125	W	200,000
Current portion of long-term investment securities		161,058		195,929		5,912		6,598		195,929
Total	W	361,058	W	395,929	W	372,913	W	376,723	W	395,929

(Note) The Company’s trading securities are all beneficiary certificates as of December 31, 2010, and distributions arising from beneficiary certificates are accounted for as accrued income.

b. Long-term Investment Securities

Long-term investment securities as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

Available-for-sale equity securities	2008 — W	3,102,833	W	2,096,297	W	1,847,788
Available-for-sale debt securities		8,261		445,954		32,385
Held-to-maturity securities		113		1,006		—
Total		3,111,207		2,543,257		1,880,173
Less current portion		(5,912	)	(6,598	)	(195,929	)
Long-term portion	W	3,105,295	W	2,536,659	W	1,684,244

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b-(1) Available-for-sale Equity Securities

Available-for-sale equity securities as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won, except for share data):

Number	Ownership		Acquisition
of Shares	Percentage (%)		Cost		Fair Value		2008		2009		2010
Investments in listed companies
SK C&C Co., Ltd. (note a)	2,050,000	4.1	W	68,559	W	178,760	W	676,716	W	201,600	W	178,760
Digital Chosunilbo Co., Ltd.	2,890,630	7.8		5,781		8,527		5,636		6,995		8,527
KRTnet Corporation	234,150	4.4		1,171		1,520		1,098		1,573		1,520
POSCO	2,481,310	2.8		332,662		1,209,639		942,898		1,533,450		1,209,639
DAEA TI Co., Ltd.	—	—		—		—		89		—		—
Extended Computing Environment Co., Ltd.	—	—		—		—		40		—		—
nTels Co., Ltd.	205,200	6.2		34		871		504		1,161		871
IHQ, Inc. (note b)	3,790,770	9.4		3,830		6,823		—		—		6,823
Qualcomm Inc. (note k)	—	—		—		—		2,514		—		—
China Unicom Ltd. (note k)	—	—		—		—		1,357,648		—		—
LG Powercomm Co., Ltd. (note k)	—	—		—		—		39,433		—		—
Sprint Nextel (note c)	—	—		—		—		—		74,215		—
Barunson	338,686	0.5		591		667		—		—		667
De Chocolate E&TF Co., Ltd.	—	—		—		—		660		—		—
Tesla Motors Inc.	83,017	—		2,845		2,518		—		—		2,518
Medifron DBT Co., Ltd.	—	—		—		—		246		—		—
C.C.S. Inc. and other	—	—		2,313		451		1,604		3,935		451
sub-total				417,786		1,409,776		3,029,086		1,822,929		1,409,776
Investments in non-listed companies
The Korea Economic Daily	2,585,069	13.8		13,964		(note g	)	13,964		13,964		13,964
Skytel Co. Ltd. (note e)	1,130,834	17.0		1,251		14,811		—		—		14,811
Dreamline Corp. (note d)	1,520,373	8.9		16,160		8,695		8,519		8,849		8,695
iFinanceGlobal Co., Ltd	6,593	15.3		23,076		(note g	)	—		—		23,076
Other				156,033		(note f,g	)	28,823		21,719		25,462
sub-total				210,484				51,306		44,532		86,008
Investments in funds
Global Opportunities Breakaway Fund (note h)				244,183		256,882		—		175,140		256,882
Others (note i, j)				100,810		(note c,g	)	22,441		53,696		95,122
sub-total				344,993				22,441		228,836		352,004
Total			W	973,263			W	3,102,833	W	2,096,297	W	1,847,788
Less: current portion				(70,050	)			—		—		(193,811	)
Long-term portion			W	903,213			W	3,102,833	W	2,096,297	W	1,653,977

(note a) During the year ended December 31, 2009, the common stocks of SK C&C, the Company’s ultimate parent company, were listed on the Stock Market of Korea Exchange through an initial public offering (“IPO”), Upon SK C&C’s IPO, the Company sold 10,500,000 shares for W 307,558 million resulting in gain on disposal of W 65,109 million. The Company additionally disposed 2,450,000 shares for W 202,333 million resulting in gain on disposal of W 145,762 million during the year ended December 31,

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| | 2010. The Company recorded the remaining investment of
2,050,000 shares at its market value of W 87,200 per share as of December 31, 2010.
Meanwhile, the Company classified this security as short-term
investment securities as the Company intends to dispose the
security within one year. As of December 31, 2010, the
Company accounted for accumulated gain on valuation of
investments in the amount of W 99,620 million (net of tax effect W 31,805 million) as unrealized gain on
valuation of investments and treated as other comprehensive
income. |
| --- | --- |
| (note b) | The Company disposed of 11,170,014 shares of IHQ Inc. stock
during the year and has 3,790,330 shares (9.4% ownership)
as of December 31, 2010. As a result, the Company
reclassified book value of the remaining shares from equity
securities accounted for using the equity method to available-for-sale securities. |
| (note c) | The investment in common stock of Sprint Nextel and others were
sold during the year ended December 31, 2010 and the
difference between the disposal price and acquisition cost was
recorded as loss on disposal of long term investment securities. |
| (note d) | The Company recorded its investment in common stock of Dreamline
Corp. at its fair value ( W 5,719 per share)
estimated using market approach and income approach valuation
method and related unrealized losses on valuation of the
investment are recorded in accumulated other comprehensive loss. |
| (note e) | For the year ended December 31, 2010, the Company entered
into a transfer agreement for common stock of Skytel Co., Ltd.
and in accordance with the agreement, the Company sold
820,943 shares for the year ended December 31, 2010
and plans to dispose of its remaining shares in 2011. As a
result, the Company reclassified the remaining shares from
equity securities accounted for using the equity method to
short-term investment securities and recorded the shares at
their estimated selling price of W 14,811 million as of December 31,
2010. |
| (note f) | During the year ended 31, 2009, the Company recorded W 6,245 million of impairment loss on
investments in Mobinex Inc., Idea Culture Ltd., Alereon, Inc. as
the Company deemed that the carrying amounts may not be
recoverable in the future. |
| (note g) | As a reasonable estimate of fair value could not be made, the
investment is stated at acquisition cost. |
| (note h) | The Company entered into a partnership arrangement with a
foreign private equity fund during 2009. The Company recorded W 9,905 million (net tax effect of W 2,794 million), the difference between
the acquisition cost and fair value as long term unrealized loss
on valuation of investments as of December 31, 2010. The
agreed aggregate investment amount is $200 million and the
entire amount has been invested as of December 31, 2010. |
| (note i) | During the year ended 31, 2010, YTK Investment Ltd., the
Company’s subsidiary, entered into a partnership
arrangement with a domestic private equity fund. The agreed
aggregate investment amount is $23 million and the entire
amount has been invested as of December 31, 2010. |
| (note j) | During the year ended 31, 2010, YTK Investment Ltd., the
Company’s subsidiary, entered into a partnership
arrangement with a foreign private equity fund. The agreed
aggregate investment amount is $200 million and
$12 million has been invested as of December 31, 2010. |
| (note k) | The investments in common stock of China Unicom Ltd. and others
were all sold during the year ended December 31, 2009 and
the difference between the disposal price
( W 1,655,085 million) and acquisition cost
was recorded as gain or loss on disposal of long -term
investment securities. |

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b-(2). Available-for-sale Debt Securities

Available-for-sale debt securities as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

		Acquisition Cost
		at December 31,		Carrying Amount
	Maturity	2010		2008		2009		2010
Public bonds	(note a)	W	429	W	1,260	W	475	W	429
Closed beneficiary certificates			—		3,551		9		—
Bond-type beneficiary certificates	(note b)		—		1,868		305,668		—
Hybrid Tier 1			100		—		—		114
Subordinated corporate bonds (note c)			—		—		90,980		—
Convertible bonds of MagicTech (note d)	Mar. 2 2011		1,818		—		1,818		—
Convertible bonds of Spicus, Inc. (note e)	Aug. 31, 2014		1,492		—		1,492		1,573
Convertible bonds of Etoos Co., Ltd (note f) (formerly
Cheong Sol)	Nov. 20, 2013		21,229		—		41,417		23,762
Convertible bonds of Mediacorp, Inc. (note g)	Mar. 21, 2009		884		332		—		—
Convertible bonds of Mobicle	Dec. 18, 2012		1,500		—		1,500		1,500
Bond with Warrants of Displaytech	May. 13, 2014		1,092		—		1,095		1,092
Bond with Warrants of SDN Company Ltd.	Dec. 24, 2013		1,320		—		—		1,401
Convertible bonds of SDN Company Ltd.	Dec. 24, 2013		500		—		—		514
Convertible bonds of Namsung Electronics Co., Ltd.	Jul. 12, 2011		2,000		—		—		2,000
Convertible bonds of XRONet Corporation	Oct. 8, 2012		—		—		500		—
Convertible bonds of PREGM Co., Ltd (note h)	Dec. 22, 2014		—		—		1,000		—
Others					1,250		—		—
Total			32,364		8,261		445,954		32,385
Less current portion of available-for-sale debt securities			(2,104	)	(5,911	)	(5,592	)	(2,118	)
Long-term available-for-sale debt securities		W	30,260	W	2,350	W	440,362	W	30,267

The Interest income incurred from available-for-sale debt securities for the years ended December 31, 2008, 2009 and 2010 were W 5,226 million, W 289 million and W 27,746 million, respectively.

(note a) The maturities of public bonds as of December 31, 2010 are within 1 year for W 4 million and within 5 years for W 425 million.

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| (note b) | The maturities of bond-type beneficiary certificates as of
December 31, 2009 are within one year is W 5,534 million and within five years is W 300,134 million. |
| --- | --- |
| (note c) | The Company purchased subordinated bonds issued by its special
purpose company in the asset-backed securitization of accounts
receivable-other resulting from its mobile phone dealer
financing plan. For the year ended December 31, 2010 all of
the bonds were collected. |
| (note d) | As of December 31, 2010, Magic Tech Network Co., Ltd is
under a liquidation process. As the Company determined that
there will likely be no consideration from the liquidation, it
recognized the carrying amount of W 1,818 million as an impairment loss on
investment securities during the current period. |
| (note e) | The face value of the convertible bonds is W 1,492 million and those are convertible
into 298,502 shares at a price of W 5,000
each, at the date of 10 years after issuing date. |
| (note f) | The face value of the convertible bonds are W 25,000 million (second: W 24,000 million,
third: W 1,000 million) and those are
convertible into 769,500 shares at prices from W 10,354 each to W 35,633 each
until one month before maturities. In accordance with the
agreement between SK Communications Co., Ltd., a subsidiary of
the Company, and certain stockholders of Etoos Co., Ltd
(formerly, Cheong Sol), the Company converted convertible bonds
of which face value totals W 25,000 million
during the year ended December 31, 2010 and the Company
recognized conversion loss of W 1,196 million as other income. |
| (note g) | Loen Entertainment, Inc., the Company’s subsidiary, holds
the convertible bonds. As the Company determined that the
recoverable amount is lower than the acquisition cost. it
recorded the entire amount as an impairment loss on investment
securities prior to 2009 |
| (note h) | Open Innovation Fund, the Company’s subsidiary, holds the
convertible bonds of PREGM Co., Ltd. who during the current year
also became a subsidiary of the Company. As such, the
transaction is eliminated as an intercompany transaction. |

b-(3). Held-to-maturity Securities

Held-to-maturity securities as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

		at December 31,		Carrying Amount
Maturity		2010		2008		2009		2010
Public bonds	(note	)	—	W	113	W	1,006	W	—
Less current portion of held-to-maturity securities					(1	)	(1,006	)	—
Long-term held-to-maturity securities				W	112	W	—	W	—

The Company disposed all of its held-to-maturity securities on March 31, 2010.

(note) The maturities of all of the Company’s public bonds are within one year as of December 31, 2010.

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b-(4). Changes in Unrealized Gains (Losses) on Valuation on Long-term Investment Securities

The changes in unrealized gains (losses) on valuation on long-term investment securities for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

	For the Year Ended December 31, 2008
								Non Controlling
						Transferred		Interest in Equity
	Beginning		Increase/			to Realized		of Consolidated		Ending
	Balance		(Decrease)			Gain (Loss)		Subsidiaries		Balance
Unrealized gains on valuation of long-term investment securities	W	2,402,333	W	(1,462,221	)	W	133	W	986	W	941,231
Unrealized losses on valuation of long-term investment securities		(160,724	)	(259,291	)		6,882		5,582		(407,551	)
Sub-total		2,241,609		(1,721,512	)		7,015		6,568		533,680
Less tax effect		(616,996	)	492,830			(1,453	)	(219	)	(125,838	)
Total	W	1,624,613	W	(1,228,682	)	W	5,562	W	6,349	W	407,842

	For the Year Ended December 31, 2009
								Non-controlling
					Transferred			Interest in Equity
	Beginning		Increase/		to Realized			of Consolidated			Ending
	Balance		(Decrease)		Gain (Loss)			Subsidiaries			Balance
Unrealized gains on valuation of long-term investment securities	W	941,231	W	592,080	W	(231,282	)	W	(45	)	W	1,301,984
Unrealized losses on valuation of long-term investment securities		(407,551	)	(12,028	)	402,385			(430	)		(17,624	)
Sub-total		533,680		580,052		171,103			(475	)		1,284,360
Less tax effect		(125,838	)	(127,532	)	(32,410	)		8			(285,772	)
Total	W	407,842	W	452,520	W	138,693		W	(467	)	W	998,588

	For the Year Ended December 31, 2010
									Non-controlling
						Transferred			Interest in Equity
	Beginning		Increase/			to Realized			of Consolidated			Ending
	Balance		(Decrease)			Gain (Loss)			Subsidiaries			Balance
Unrealized gains on valuation of long-term investment securities	W	1,301,984	W	(214,595	)	W	(53,365	)	W	(940	)	W	1,033,084
Unrealized losses on valuation of long-term investment securities		(17,624	)	6,061			2,947			(289	)		(8,905	)
Sub-total		1,284,360		(208,534	)		(50,418	)		(1,229	)		1,024,179
Less tax effect		(285,772	)	42,812			12,564			194			(230,202	)
Total	W	998,588	W	(165,722	)	W	(37,854	)	W	(1,035	)	W	793,977

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1. EQUITY SECURITIES ACCOUNTED FOR USING THE EQUITY METHOD

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Equity securities accounted for using the equity method as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won, except for share data):

Number	Ownership		Acquisition		Net asset			Carrying Amount
of Shares	Percentage (%)		Cost		Value			2008		2009		2010
SK Marketing & Company Co., Ltd.	5,000,000	50.0	W	190,000	W	118,698		W	96,798	W	109,314	W	118,698
HanaSK Card Co., Ltd.	57,647,058	49.0		402,476		309,433	(note a	)	—		—		377,228
SK Wyverns Baseball Club Co., Ltd.	199,997	100.0		1,000		—			—		—		—
Harex Info Tech, Inc.	—	—		—		—	(note b	)	596		62		—
SK Mobile	—	20		4,930		655			2,111		2,111		655
Skytel Co., Ltd.	—	—		—		—	(note c	)	13,858		14,958		—
SK China Company Ltd.	720,000	22.5		49,529		47,396	(note d	)	3,577		3,918		46,573
SK Telecom China Co., Ltd.	—	100.0		7,340		9,315			—		—		9,315
TR Entertainment	—	42.2		10,953		2,399			9,626		7,560		6,029
ULand Company Ltd.	20,100,100	100.0		23,570		4,137			—		4,445		2,869
SK USA, Inc.	49	49.0		3,184		5,551			5,249		5,498		5,551
Korea IT Fund	190	63.3		190,000		232,791			210,735		219,709		232,791
1st Music Investment Fund of SK-PVC	1,980	99.0		1,326		779			—		6,434		779
2nd Music Investment Fund of SK-PVC	1,980	99.0		874		749			—		—		749
Michigan Global Cinema Fund	500	45.5		5,000		4,512			—		4,587		4,512
3rd Fund of Isu Entertainment	30	37.5		3,000		2,023			1,882		1,962		2,023
AirCross Co., Ltd.	—	—		—		—			7,289		—		—
Virgin Mobile USA, Inc.	—	—		—		—			62,096		—		—
SK Telecom Advanced Tech & Service Center	—	100.0		6,989		9,667			—		—		9,667
Magic Tech Network Co., Ltd.	4,500	30.0		8,494		—	(note e	)	7,725		5,267		—
Wave City Development Co., Ltd.	382,000	19.1		1,967		1,391			1,908		1,532		1,391
Prmaxsoftware tech.Co., Ltd.	—	97.2		11,665		100			7,127		2,432		100
SK Beijing Industrial Development Co., Ltd.	—	—		—		—			—		18,009		—
Cyworld Japan Co., Ltd.	—	—		—		—			3,690		226		—
Daehan Kanggun BcN Co., Ltd.	1,461,486	29.0		7,307		7,264			—		7,262		7,264
SK Fans Co., Limited	312,245	51.0		13,775		4,017	(note f	)	—		—		12,738
SK Telecom Smart City Management Co., Ltd.	1,532,143	100.0		1,709		1,410	(note f	)	—		—		1,410
KIF Stonebridge Fund	700	20.8		700		670	(note f	)	—		—		670
PT. Melon Indonesia	4,900,000	49.0		6,492		6,210	(note f	)	—		—		6,210
Packet One Network	979,474	27.2		121,119		46,404	(note g	)	—		—		114,760
LightSquared Inc.	3,387,916	3.3		72,096		42,517	(note h	)	—		—		72,096
Television Media Korea Ltd.	18,564,000	51.0		18,568		18,328	(note f	)	—		—		18,328
JYP Entertainment Corporation	691,680	25.5		4,150		671	(note i	)	—		—		4,150
Broadband D&M Co., Ltd.	900,000	100.0		4,500		4,861			—		3,713		3,848
Hanaro Dream Incorporated	—	—		—		—	(note j	)	—		6,687		—
Konan Technology	78,550	29.5		13,456		3,178			—		3,320		3,695
Etoos Co., Ltd (formerly Cheong Sol)	701,000	15.6		18,993		277	(note k	)	—		—		13,501
Mobile Money Ventures, LLC	—	50.0		8,821		3,206			5,283		5,614		3,206
Joynav Technology Co., Ltd.	—	41.0		3,763		2,795			—		3,762		2,795
IM Shopping Inc.	—	72.6		6,072		5,922			—		6,072		5,922
CU Media, Inc.	—	—		—		—			—		15,119		—
LCNC Co., Ltd.	121,800	60.4		6,000		6,000			—		—		6,000
Skyon Co., Ltd.	—	—		—		—			—		15,000		—
SK Telecom Global Investment B.V.	—	—		—		—			31,807		—		—
SKY Property Mgmt. Ltd.	—	—		—		—			287,005		—		—
S-Telecom (formerly CDMA Mobile Phone Center)	—	—		—		—			67,139		—		—
SK Cyberpass, Inc.	—	—		—		—			4,068		—		—
Shenzhen E-Eye High
Tech Co., Ltd.	—	—		—		—			19,801		—		—
Cyworld Incorporated	—	—		—		—			2,672		—		—

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Number	Ownership	Acquisition	Net asset	Carrying Amount
of Shares	Percentage (%)	Cost	Value	2008		2009		2010
SK Telecom Holdings America, Inc.	—	—	—	—	12,990		—		—
Benex Movie Expert Fund	—	—	—	—	8,045		—		—
SK Telecom Europe Limited and other investment in affiliates	—	—	31,058		25,435		11,820		12,320
Total		W	1,260,876	W	898,512	W	486,393	W	1,107,843

| (Note a) | The Company acquired 57,647,058 shares of in HanaSK Card
Co.,Ltd. during the year ended December 31, 2010. Though
the Company holds 49% ownership in HanaSK card Co., Ltd., it
does not have controlling power of HanaSK Card Co., Ltd. |
| --- | --- |
| (Note b) | During the year ended December 31, 2010, the Company’s
ownership percentage of Harex Info Tech, Inc. decreased as the
Company did not participate in Harex Info. Tech, Inc.’s
issuance of new stock. As a result, the Company reclassified its
remaining shares of Harex Info Tech, Inc. from the equity
securities accounted for using the equity method to available-for-sale equity securities. |
| (Note c) | The Company replaced carrying value of the stock from equity
securities accounted for using the equity method to short-term
investment securities as the Company’s ownership interest
decreased due to the disposal of 820,943 shares of Skytel
Co., Ltd. |
| (Note d) | The Company participated in a proportionate capital increase of
SK China Company Ltd. in the amount of W 44,859 million. |
| (Note e) | As of December 31, 2010, Magic Tech Network Co., Ltd. is
under liquidation process and as the Company determined that
there will likely be no consideration for the liquidation, it
recognized the entire carrying value amount as impairment loss
on investment securities. |
| (Note f) | During the year ended December 31, 2010, the Company
participated in the establishment of SK Fans Co.,Limited, SK
Telecom Smart City Management Co.,Ltd., KIF Stonebridge Fund,
PT. Melon Indonesia and Television Media Korea, respectively. |
| (Note g) | During the year ended December 31, 2010, the Company
acquired 979,474 shares of convertible preferred stock of
Packet One Network. As a result, the Company holds 27.2%
ownership in Packet One Network. |
| (Note h) | During the year ended December 31, 2010, the Company
acquired 3,387,916 shares of common stock of Lightsquared
Inc. Though the Company holds only 3.3% ownership; it has an
ability to exercise significant influence on Light squared Inc. |
| (Note i) | During the year ended December 31, 2010, the Company and
Loen Entertainment, Inc., the Company’s subsidiary,
acquired 483,830 (17.8%) and 207,850 shares (7.65%) of JYP
Entertainment, Corp., respectively, resulting from the full
liquidation of 1st Music Investment Fund of SK-PVC |
| (Note j) | SK Broadband Co., Ltd., the Company’s subsidiary,
transferred the entire amount of Hanaro Dream, Inc. shares to
Hanaro Dream, Inc. for W 6,937 million and W 250 million was accounted for as gain on
disposal of equity securities accounted for using equity method. |
| (Note k) | During the year ended December 31, 2010, SK Communications
Co., Ltd., the Company’s subsidiary, acquired
701,000 shares or 19.95% equity interest of Etoos Co., Ltd.
by converting convertible bonds of Etoos Co., Ltd (face value of W 25,000 million) and applied the equity
method due to the significant influence on Etoos Co., Ltd.
Meanwhile, the Company’s equity interest has decreased to
15.6% due to Etoos Co., Ltd.’s capital increase. |

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Details of changes in investments in affiliates accounted for using the equity method for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

									Equity in Capital
						Equity in			Surplus and Other						Other
		Beginning				Earnings			Comprehensive			Dividend			Increase		Ending
		Balance		Acquisition		(Losses)			Income			Received			(Decrease)		Balance
SK Marketing & Company Co., Ltd.		W	—	W	190,000	W	7,410		W	(100,612	)	W	—		W	—	W	96,798
AirCross Co., Ltd.	(note a	)	—		—		2,261			—			—			5,028		7,289
Harex Info Tech, Inc.			1,118		—		(522	)		—			—			—		596
SK Mobile	(note c	)	3,273		2,004		—			—			—			(3,166	)	2,111
Skytel Co., Ltd.			7,743		—		5,189			2,140			(1,214	)		—		13,858
SK China Company Ltd.			137		2,963		164			313			—			—		3,577
TR Entertainment			—		10,953		(2,108	)		781			—			—		9,626
Virgin Mobile USA Inc.			—		29,693		(8,896	)		(1,504	)		—			42,803		62,096
SK Telecom China Holding Co., Ltd.	(note d	)	19,070		—		—			—			—			(19,070	)	—
SK USA, Inc.			3,141		—		911			1,197			—			—		5,249
Korea IT Fund			210,568		—		4,771			(4,604	)		—			—		210,735
Centurion IT Investment Association	(note e	)	2,463		—		—			—			—			(2,463	)	—
3rd Fund of Isu Entertainment			2,028		—		(146	)		—			—			—		1,882
Magic Tech Network			—		8,494		(1,233	)		464			—			—		7,725
SK Telecom Global Investment B.V.			—		26,044		125			5,638			—			—		31,807
SKY Property Mgmt. Ltd.			—		283,368		(1,998	)		5,636			—			—		287,006
S-Telecom (formerly CDMA Mobile Phone Center)	(note f	)	66,001		13,629		(25,766	)		13,275			—			—		67,139
Wave City Development Co., Ltd.			—		1,967		(59	)		—			—			—		1,908
SK Cyberpass, Inc.	(note b	)	—		3,444		(1,584	)		980			—			1,228		4,068
Shenzhen E-Eye High
Tech			—		—		(1,151	)		—			—			20,952		19,801
Cyworld Japan Co., Ltd.			4,091		—		(539	)		138			—			—		3,690
Cyworld Incorporated			2,672		—		—			—			—			—		2,672
Prmaxsoftware tech.Co., Ltd.			—		7,127		—			—			—			—		7,127
Mobile Money Ventures, LLC	(note g	)	—		8,821		(4,189	)		651			—			—		5,283
SK Telecom Hodlings America, Inc.			4,050		8,940		—			—			—			—		12,990
Benex Movie Expert Fund			—		8,100		(55	)		—			—			—		8,045
Other investment in affiliates			24,611		7,010		(1,959	)		1,112			—			(5,340	)	25,434
		W	350,966	W	612,557	W	(29,374	)	W	(74,395	)	W	(1,214	)	W	39,972	W	898,512

| (note a) | Aircross Co., Ltd. was reclassified into in the equity
securities accounted for using equity method from a consolidated
subsidiary during the year ended December 31, 2008 as it
was planned to be and was then fully liquidated in March 2009. |
| --- | --- |
| (note b) | SK Cyberpass, Inc. was included in the equity securities
accounted for using equity method as its total assets at the
beginning of 2008 decreased to less than W 7 billion, in accordance with then
applicable Korean GAAP. |
| (note c) | Other decrease in investments in equity securities of SK Mobile
resulted from the disposal of some of its equity shares. |
| (note d) | As of December 31, 2008, SK Telecom China Holding Co., Ltd
is included in the Company’s consolidation, resulting in
other decreases in the investment. |
| (note e) | Other decrease in investments in Centurion IT Investment
Association represents the collection of the Company’s
investment from liquidation of Centurion IT Investment
Association. |

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| (note f) | Translation gain of W 13,275 million
incurred from translating the foreign currency financial
statements of SKT Vietnam PTE Ltd. into Korean won and the
associated translation gain was accounted for as an increase in
the investment in S-Telecom (formerly CDMA Mobile Phone Center). |
| --- | --- |
| (note g) | The amount represent translation gain of W 651 million incurred from translating the
foreign currency financial statements of Mobile Money Ventures,
LLC by SKT Americas, Inc. (formerly SK Telecom International
inc.), a subsidiary, into Korean won and the associated
translation gain was accounted for as an increase in the
investment in Mobile Money Ventures, LLC. |

								Equity in Capital
						Equity in		Surplus and Other					Other
		Beginning				Earnings		Comprehensive			Retained		Increase		Ending
		Balance		Acquisition		(Losses)		Income			Earnings		(Decrease)		Balance
SK Marketing & Company Co., Ltd.		W	96,798	W	—	W	13,063	W	(547	)	W	—	W	—	W	109,314
AirCross Co., Ltd.	(note a	)	7,289		—		—		—			—		(7,289	)	—
Harex Info Tech, Inc.			596		—		(534	)	—			—		—		62
SK Mobile			2,111		—		—		—			—		—		2,111
Skytel Co., Ltd.			13,858		—		3,835		(2,735	)		—		—		14,958
SK China Company Ltd.			3,577		—		739		(398	)		—		—		3,918
TR Entertainment			9,626		—		(1,894	)	(172	)		—		—		7,560
Virgin Mobile USA Inc.	(note b	)	62,096		—		(11,529	)	11			—		(50,578	)	—
SK USA, Inc.			5,249		—		683		(434	)		—		—		5,498
Korea IT Fund			210,735		—		7,562		1,412			—		—		219,709
3rd Fund of Isu Entertainment			1,882		—		80		—			—		—		1,962
Magic Tech Network			7,725		—		(2,403	)	(55	)		—		—		5,267
SK Telecom Global Investment B.V.	(note c	)	31,807		13,275		(65	)	5			—		(45,022	)	—
SKY Property Mgmt., Ltd.	(note c	)	287,006		—		(1,075	)	—			—		(285,931	)	—
S-Telecom (formerly CDMA Mobile Phone Center)			67,139		—		(31,212	)	(14,248	)		—		(21,679	)	—
Wave City Development Co., Ltd.			1,908		—		(376	)	—			—		—		1,532
SK Cyberpass, Inc.	(note d	)	4,068		—		—		—			—		(4,068	)	—
Shenzhen E-Eye High
Tech	(note c	)	19,801		—		—		—			—		(19,801	)	—
Cyworld Japan Co., Ltd.			3,690		—		(3,428	)	(36	)		—		—		226
Cyworld Incorporated			2,672		—		(2,672	)	—			—		—		—
Prmaxsoftware tech.Co., Ltd.			7,127		4,538		(9,526	)	293			—		—		2,432
Mobile Money Ventures, LLC			5,283		7,694		(6,983	)	(380	)		—		—		5,614
SK Telecom Holdings America, Inc.	(note e	)	12,990		—		2,827		—			—		(15,817	)	—
Benex Movie Expert Fund	(note c	)	8,045		—		(303	)	—			—		(7,742	)	—
SK Wyverns Baseball Club Co., Ltd.	(note f	)	—		—		(193	)	—			—		193		—
1st Music Investment Fund of SK-PVC	(note f	)	—		—		(124	)	17			—		6,541		6,434
Michigan Global Cinema Fund	(note f	)	—		—		9		—			—		4,578		4,587
SK Beijing Industrial Development Co.			—		23,709		(5,448	)	(252	)		—		—		18,009
Daehan Kanggun BcN Co., Ltd.	(note g	)	—		6,803		(45	)	—			—		504		7,262
Broadband D&M Co., Ltd.	(note f	)	—		—		204		—			—		3,509		3,713
Hanaro Dream Incorporated	(note f	)	—		—		(39	)	309			—		6,417		6,687
Cyworld China Holdings Ltd.	(note f	)	—		—		(2,627	)	125			—		2,502		—
Konan Technology	(note f	)	—		—		19		(29	)		—		3,330		3,320
ULand Company Ltd.	(note f	)	—		—		(1,641	)	(424	)		—		6,510		4,445
CU Media, Inc	(note f	)	—		—		(2,055	)	—			—		17,174		15,119
IM Shopping Inc.	(note h	)	—		—		—		—			—		6,072		6,072
Skyon Co., Ltd.			—		15,000		—		—			—		—		15,000
Joynav Technology Co., Ltd.			—		4,111		(104	)	(245	)		—		—		3,762

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							Equity in Capital
				Equity in			Surplus and Other						Other
Beginning				Earnings			Comprehensive			Retained			Increase			Ending
Balance		Acquisition		(Losses)			Income			Earnings			(Decrease)			Balance
Other investment in affiliates	25,434		32,271		(8,725	)		(1,176	)		(11,589	)		(24,395	)		11,820
W	898,512	W	107,401	W	(63,980	)	W	(18,959	)	W	(11,589	)	W	(424,992	)	W	486,393

| (note a) | Other decrease in investments in equity securities of AirCross
Co., Ltd. is due to AirCross Co., Ltd’s liquidation during
the period. |
| --- | --- |
| (note b) | Other decrease in investments in equity securities of Virgin
Mobile, Inc. and Helio Inc. resulted from the exchange of Sprint
Nextel shares with those of the aforementioned companies. |
| (note c) | During the year ended December 31, 2009, investment
(investee company) is included in the Company’s
consolidation, resulting in a decrease of in equity securities
accounted for using the equity method. |
| (note d) | Other decrease in investments in equity securities of SK
Cyberpass, Inc. resulted from the disposal of shares. |
| (note e) | Other decrease in investments in equity securities of SKT
Holdings America, Inc. resulted from the exchange of equity
interest with SKT Americas, Inc. |
| (note f) | Investment is accounted for as an equity securities accounted
for using equity method as its total assets at the beginning of
2009 decreased to less than W 10 billion,
in accordance to Korean GAAP. |
| (note g) | Other increase in investments in Daehan Kanggun BcN Co., Ltd.
represents the increase through the acquisition of the lease
line business from SK Networks Co., Ltd. |
| (note h) | Due to SK Telecom Global Investment B.V. inclusion in the
Company’s consolidation beginning the year ended
December 31, 2009, IM Shopping Inc., which SK Telecom
Global Investment B.V., SK Global Investment has a 72.6% equity
interest in, is included in the equity securities accounted for
using equity method. |

								Equity in Capital
								Surplus and
						Equity in		Other				Other
		Beginning				Earnings		Comprehensive		Dividend		Increase		Ending
		Balance		Acquisition		(Losses)		Income		Received		(Decrease)		Balance
SK Marketing & Company Co., Ltd.		W	109,314	W	—	W	9,376	W	8	W	—	W	—	W	118,698
HanaSK Card Co., Ltd.			—		402,476		(25,148	)	(100	)	—		—		377,228
SK Wyverns Baseball Club Co., Ltd.			—		—		410		—		—		(410	)	—
Harex Info Tech, Inc.	(note h	)	62		—		—		—		—		(62	)	—
SK Mobile			2,111		—		(1,982	)	526		—		—		655
Skytel Co., Ltd.	(note a, b	)	14,958		—		2,833		1,337		(444	)	(18,684	)	—
SK China Company Ltd.	(note a	)	3,918		44,860		935		(2,192	)	—		(947	)	46,574
SK Telecom China Co., Ltd.	(note c	)	—		—		(205	)	77		—		9,443		9,315
TR Entertainment			7,560		—		(1,551	)	20		—		—		6,029
ULand Company Ltd.			4,445		—		(1,612	)	36		—		—		2,869
SK USA, Inc.			5,498		—		191		(138	)	—		—		5,551
Korea IT Fund	(note b	)	219,709		—		13,942		2,098		(2,958	)	—		232,791
1st Music Investment Fund of SK-PVC	(note d	)	6,434		—		(138	)	13		—		(5,530	)	779
2nd Music Investment Fund of SK-PVC	(note c	)	—		—		25		—		—		724		749
Michigan Global Cinema Fund			4,587		—		(75	)	—		—		—		4,512
3rd Fund of Isu Entertainment			1,962		—		61		—		—		—		2,023

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									Equity in Capital
									Surplus and
						Equity in			Other					Other
		Beginning				Earnings			Comprehensive		Dividend			Increase			Ending
		Balance		Acquisition		(Losses)			Income		Received			(Decrease)			Balance
SK Telecom Advanced Tech & Service Center			—		—		50			81		—			9,536			9,667
Magic Tech Network Co., Ltd.			5,267		—		(4,858	)		(409	)	—			—			—
Wave City Development Co., Ltd.			1,532		—		(141	)		—		—			—			1,391
Prmaxsoftware tech.Co., Ltd.			2,432		—		(2,332	)		—		—			—			100
SK Beijing Industrial Development Co.	(note a	)	18,009		—		—			—		—			(18,009	)		—
Cyworld Japan Co., Ltd.	(note d	)	226		—		—			—		—			(226	)		—
Daehan Kanggun BcN Co., Ltd.			7,262		—		1			—		—			—			7,263
SK Fans Co., Limited			—		13,775		(1,074	)		37		—			—			12,738
SK Telecom Smart City Management Co., Ltd.			—		1,709		(192	)		(107	)	—			—			1,410
KIF Stonebridge Fund			—		700		(30	)		—		—			—			670
PT. Melon Indonesia			—		6,492		13			(295	)	—			—			6,210
Packet One Network			—		121,119		(6,460	)		101		—			—			114,760
LightSquared Inc.			—		72,096		—			—		—			—			72,096
Television Media Korea Ltd.			—		18,568		(240	)		—		—			—			18,328
JYP Entertainment Corporation			—		4,150		—			—		—			—			4,150
Broadband D&M Co., Ltd.			3,713		—		135			—		—			—			3,848
Hanaro Dream Incorporated	(note a	)	6,687		—		—			—		—			(6,687	)		—
Konan Technology			3,320		—		374			—		—			—			3,694
Etoos Co., Ltd (formerly Cheong Sol)	(note e	)	—		—		(1,619	)		—		—			15,120			13,501
Mobile Money Ventures, LLC			5,614		—		(2,226	)		—		—			(182	)		3,206
Joynav Technology Co., Ltd.			3,762		—		(989	)		—		—			22			2,795
IM Shopping Inc.			6,072		—		—			—		—			(149	)		5,923
LCNC Co., Ltd.			—		6,000		—			—		—			—			6,000
CU Media, Inc	(note f	)	15,119		—		—			—		—			(15,119	)		—
Skyon Co., Ltd.	(note g	)	15,000		—		(6,987	)		—		—			(8,013	)		—
SK Telecom Europe Limited and other investment in affiliates			11,820		2,000		118			40		—			(1,658	)		12,320
		W	486,393	W	693,945	W	(29,395	)	W	1,133	W	(3,402	)	W	(40,831	)	W	1,107,843

| (note a) | Other decreases for Skytel Co., Ltd., SK China Company Ltd., SK
Beijing Industrial Development Co., Limited, and Hanaro Dream,
Inc. are due to the disposal of equity interests during the year
ended December 31, 2010. |
| --- | --- |
| (note b) | The Company received dividends from Skytel Co., Ltd. and Korea
IT Fund; the corresponding amounts were deducted from the
carrying amount of equity securities accounted for using the
equity method. |
| (note c) | Other increase or decrease of the 2nd Music Investment Fund of
SK-PVC and others incurred as they were excluded from
consolidation and investments in those companies are accounted
for using equity method. |
| (note d) | Other increase or decrease of the 1st Music Investment Fund of
SK-PVC and Cyworld Japan Co., Ltd due to liquidation during the
year ended December 31, 2010. |
| (note e) | Other increase or decrease of Etoos Co., Ltd. is replacement of available-for-sale securities in the amount of W 18,993 million to equity securities
accounted for using equity method, as SK Communications Co.,
Ltd., the Company’s subsidiary, converted convertible bonds
of Etoos Co., Ltd (face value of W 25,000 million. In addition, the Company
accounts for the changes in equity interests in the amount |

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| | of W 3,872 million as loss on disposal of
equity securities accounted for using equity method as the
investee company increased its paid-in capital. |
| --- | --- |
| (note f) | IHQ Inc., a formerly consolidated entity which during the year,
due to the disposal of significant number of shares, became an available-for-sale investment. Accordingly, as IHQ Inc. owns CU Media, CU Media is
longer accounted for as an equity method investment. |
| (note g) | During the period Skyon Co., Ltd. merged into PREGM Co., Ltd..
As a result, Benex Focus Limited Partnership II, a
subsidiary, acquired shares of PREGM Co., Ltd.. As the Company
has 56.69%. equity ownership of PREGM Co., Ltd., it is included
in the Company’s consolidation during the year ended
December 31, 2010. |
| (note h) | During the year ended December 31, 2010,the Company’s
ownership percentage of Harex Info Tech, Inc. decreased as the
Company did not participate in Harex Info. Tech, Inc.’s
issuance of new stock. As a result, the Company reclassified its
remaining shares of Harex Info Tech, Inc. from the equity
securities accounted for using the equity method to available-for-sale equity securities.. |

Details of changes in the differences between the acquisition cost and net asset value of equity method investees at the acquisition date for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

	For the Year Ended December 31, 2008
	Beginning							Ending
	Balance		In(de)crease		Amortization			Balance
Harex Info Tech, Inc.	W	701	W	—	W	(351	)	W	350
TR Entertainment		—		8,066		(1,210	)		6,856
Virgin Mobile USA Inc.		—		126,363		(7,183	)		119,180
Skytel Co., Ltd.		—		(1,387	)	1,387			—
SK China Company Ltd.		—		107		—			107
Magic Tech Network		—		6,181		(618	)		5,563
SK Cyberpass Inc.		—		304		(46	)		258
Shenzhen E-Eye High
Tech		—		10,851		(2,171	)		8,680
Other investments in affiliates		6,930		(1,893	)	(1,601	)		3,436
Total	W	7,631	W	148,592	W	(11,793	)	W	144,430

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	For the Year Ended December 31, 2009
	Beginning								Ending
	Balance		In(de)crease			Amortization			Balance
Harex Info Tech, Inc.	W	350	W	—		W	(350	)	W	—
TR Entertainment		6,856		—			(1,613	)		5,243
Virgin Mobile USA Inc.		119,180		(99,296	)		(19,884	)		—
Skytel Co., Ltd.		—		—			—			—
SK China Company Ltd.		107		—			(107	)		—
Magic Tech Network		5,563		—			(1,236	)		4,327
Prmaxsoftware tech.Co., Ltd		—		671			(671	)		—
Daehan Kanggun BcN Co. Ltd.		—		45			(45	)		—
Hanaro Dream Incorporated		—		87			(87	)		—
Cyworld Japan Co., Ltd.		—		2,821			(2,821	)		—
Cyworld Incorporated		—		1,664			(1,664	)		—
Konan Technology		—		2,027			(715	)		1,312
ULand Company Ltd.		—		360			(240	)		120
CU Media, Inc.		—		10,972			(1,859	)		9,113
SK Cyberpass Inc.		258		(258	)		—			—
Shenzhen E-Eye High
Tech		8,680		(8,680	)		—			—
Other investments in affiliates		3,436		(745	)		(1,076	)		1,615
Total	W	144,430	W	(90,332	)	W	(32,368	)	W	21,730

	For the Year Ended December 31, 2010
	Beginning							Ending
	Balance		In(de)crease		Amortization			Balance
HanaSK Card Co., Ltd.	W	—	W	70,690	W	(2,895	)	W	67,795
TR Entertainment		5,243		—		(1,613	)		3,630
ULand Company Ltd.		120		—		(120	)		—
Magic Tech Network Co., Ltd.		4,327		—		(4,327	)		—
SK Fans Co., Limited		—		9,180		(459	)		8,721
Packet One Network		—		67,952		404			68,356
LightSquared Inc.		—		29,579		—			29,579
Television Media Korea Ltd.		—		240		(240	)		—
Konan Technology		1,312		—		(716	)		596
Etoos Co., Ltd (formerly Cheong Sol)		—		14,346		(1,308	)		13,038
JYP Entertainment Corporation		—		3,479		—			3,479
CU Media, Inc		9,113		(9,113	)	—			—
Other investments in affiliates		1,615		(1,615	)	—			—
Total	W	21,730	W	184,738	W	(11,274	)	W	195,194

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Details of changes in unrealized intercompany gains incurred from sales of assets for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

	For the Year Ended December 31, 2008
	Beginning							Ending
	Balance		Increase		Decrease			Balance
SK China Company Ltd.	W	1,086	W	—	W	—		W	1,086
Cyworld Japan Co., Ltd.		410		—		(410	)		—
Cyworld Incorporated		1,416		—		—			1,416
Other investments in affiliates		2,955		57		(192	)		2,820
Total	W	5,867	W	57	W	(602	)	W	5,322

	For the Year Ended December 31, 2009
	Beginning							Ending
	Balance		Increase		Decrease			Balance
SK China Company Ltd.	W	1,086	W	—	W	—		W	1,086
Broadband D&M Co., Ltd.		—		931		(79	)		852
Cyworld China Holdings Ltd.		—		488		(258	)		230
Konan Technology		—		116		(14	)		102
ULand Company Ltd.		—		1,268		—			1,268
CU Media, Inc.		—		31		(31	)		—
Cyworld Incorporated		1,416		—		—			1,416
Other investments in affiliates		2,820		—		(474	)		2,346
Total	W	5,322	W	2,834	W	(856	)	W	7,300

	For the Year Ended December 31, 2010
	Beginning							Ending
	Balance		Increase		Decrease			Balance
SK China Company Ltd.	W	1,086	W	—	W	(263	)	W	823
ULand Company Ltd.		1,268		—		—			1,268
Cyworld China Holdings Ltd.		230		—		—			230
Broadband D&M Co., Ltd.		852		264		(103	)		1,013
Konan Technology		102		—		(23	)		79
Cyworld Incorporated		1,416		—		(1,416	)		—
Etoos Co., Ltd (formerly Cheong Sol)		—		(238	)	52			(186	)
Other investments in affiliates		2,346		—		—			2,346
Total	W	7,300	W	26	W	(1,753	)	W	5,573

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The condensed financial information of the investees as of and for the year ended December 31, 2010 is as follows (in millions of Korean won):

	Total		Total				Net
	Assets		Liabilities		Revenue		Income (Loss)
SK Marketing & Company Co., Ltd.	W	659,847	W	422,452	W	415,270	W	18,751
HanaSK Card Co., Ltd.		3,315,740		2,684,243		492,499		(58,914	)
SK Wyverns Baseball Club Co., Ltd.		5,039		7,566		30,685		(286	)
SK Mobile		3,658		382		—		(7,054	)
SK China Company Ltd.		212,370		1,784		15,876		4,155
SK Telecom China Co.,Ltd.		9,469		153		—		(205	)
TR Entertainment		6,549		864		11,026		146
ULand Company Ltd.		7,191		3,102		2,938		(1,387	)
SK USA, Inc.		22,035		10,706		9,303		10,358
Korea IT Fund		367,721		—		28,377		22,014
1st Music Investment Fund of SK-PVC		366		30		75		45
2nd Music Investment Fund of SK-PVC		477		29		155		125
Michigan Global Cinema Fund		9,785		90		20		(165	)
3rd Fund of Isu Entertainment		5,395		—		166		162
SK Telecom Advanced Tech & Service Center		9,761		94		—		50
Wave City Development Co., Ltd.		126,413		119,128		693		(734	)
Prmaxsoftware tech.Co.,Ltd.		103		—		—		(2,399	)
Daehan Kanggun BcN Co., Ltd.		165,754		140,707		—		4
SK Fans Co., Limited		16,588		8,712		6,975		(1,205	)
SK Telecom Smart City Management Co., Ltd.		1,487		77		—		(119	)
KIF Stone Bridge Fund Co., Ltd		3,383		157		12		(143	)
PT. Melon Indonesia		13,759		1,085		—		27,371
Packet One Network		268,617		145,422		74,893		(59,635	)
Television Media Korea Ltd.		36,402		465		—		(291	)
JYP Entertainment Corporation		15,186		12,550		21,680		904
Broadband D&M Co., Ltd.	W	10,512	W	5,651	W	4,861	W	51,088
Konan Technology		15,590		4,814		14,596		3,620
Etoos Co., Ltd (formerly Cheong Sol)		74,938		73,164		29,719		(3,683	)
Mobile Money Ventures, LLC		9,407		2,996		4,472		(3,767	)
Joynav Technology Co., Ltd.		7,008		194		107		(2,411	)
IM Shopping Inc.		1,044		1,966		63		(1,498	)
LCNC Co., Ltd		9,729		175		12		(432	)

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1. LOANS TO EMPLOYEES

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Short-term and long-term loans to employees as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

Loans to employees’ stock ownership association	2008 — W	74,878	2009 — W	58,198	2010 — W	43,487
Loans to employees for housing and other		15,488		30,848		26,427
	W	90,366	W	89,046	W	69,914

The Company loaned the amount above to its employees through the Employee’s Stock Purchase Association (a pass-through organization) for employees’ acquisition of the Company’s treasury stocks through a compensatory employee stock purchase plan ( Refer to Note 16 Treasury Stocks). The loan will be repaid over a period of five years, beginning on the second anniversary of each loan date and will expire on December 25, 2014.

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1. PROPERTY AND EQUIPMENT

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Property and equipment as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

(Years)	2008		2009		2010
Land	W	756,348	W	728,300	W	725,802
Buildings and structures	15-50	1,925,563		2,158,124		2,179,601
Machinery	3-15	18,572,546		19,732,297		19,750,703
Other	4-9	1,135,325		1,163,537		1,404,770
Construction in progress		356,150		417,027		447,608
Total		22,745,932		24,199,285		24,508,484
Less accumulated depreciation		(15,305,773	)	(16,030,884	)	(16,641,384	)
Accumulated impairment		(2,197	)	(2,019	)	(2,019	)
Government subsidy		(273	)	(503	)	(487	)
Property and equipment, net	W	7,437,689	W	8,165,879	W	7,864,594

The Officially Assessed Land Prices, issued by the government, as of December 31, 2008, 2009 and 2010 was W 895,866 million, W 856,729 million and W 971,607 million, respectively.

Details of changes in property and equipment for the years ended December 31, 2008, 2009 and 2010 are as follows (In millions of Korean won):

	For the Year Ended December 31, 2008
			Other
	Beginning		Increase													Ending
	Balance		(Decrease)		Acquisition		Disposal			Transfer			Depreciation			Balance
Land	W	454,916	W	294,629	W	141	W	(3,394	)	W	10,056		W	—		W	756,348
Buildings and structures		1,066,080		319,266		10,984		(2,900	)		28,692			(67,310	)		1,354,812
Machinery		2,800,428		1,675,918		358,052		(55,090	)		1,600,116			(1,804,916	)		4,574,508
Other		338,975		(950	)	1,138,814		(29,633	)		(928,313	)		(123,022	)		395,871
Construction in progress		308,955		61,155		728,939		(13,461	)		(729,438	)		—			356,150
Total	W	4,969,354	W	2,350,018	W	2,236,930	W	(104,478	)	W	(18,887	)	W	(1,995,248	)	W	7,437,689

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	For the Year Ended December 31, 2009
			Other
	Beginning		Increase														Ending
	Balance		(Decrease)			Acquisition		Disposal			Transfer			Depreciation			Balance
Land	W	756,348	W	(5,397	)	W	19,326	W	(42,902	)		925		W	—		W	728,300
Buildings and structures		1,354,812		210,087			35,164		(18,766	)		(3,659	)		(74,283	)		1,503,355
Machinery		4,574,508		531,991			345,558		(16,794	)		1,553,959			(1,838,688	)		5,150,534
Other		395,871		(2,615	)		974,824		(28,117	)		(849,494	)		(123,807	)		366,662
Construction in progress		356,150		7,028			787,565		(20,739	)		(712,976	)		—			417,028
Total	W	7,437,689	W	741,094		W	2,162,437	W	(127,318	)	W	(11,245	)	W	(2,036,778	)	W	8,165,879

	For the Year Ended December 31, 2010
			Other
	Beginning		Increase													Ending
	Balance		(Decrease)		Acquisition		Disposal			Transfer			Depreciation			Balance
Land	W	728,300	W	62	W	1,622	W	(7,000	)	W	2,818		W	—		W	725,802
Buildings and structures		1,503,355		1,956		13,838		(1,650	)		8,490			(86,517	)		1,439,472
Machinery		5,150,534		(71	)	455,279		(91,874	)		1,141,647			(1,926,994	)		4,728,521
Other		366,662		(996	)	982,906		(4,854	)		(692,282	)		(128,245	)		523,191
Construction in progress		417,028		—		863,231		(46,581	)		(786,070	)		—			447,608
Total	W	8,165,879	W	951	W	2,316,876	W	(151,959	)	W	(325,397	)	W	(2,141,756	)	W	7,864,594

Changes denoted above include activities from both continuing and discontinued operations. Other increase (decrease) resulted from merger and the changes in consolidated subsidiaries.

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1. INTANGIBLE ASSETS

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Intangible assets as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

	December 31, 2010								Carrying Amounts
	Acquisition		Accumulated			Accumulated
	Cost		Amortization			Impairment			2008		2009		2010
Goodwill	W	2,945,582	W	(1,321,271	)	W	(5,378	)	W	1,899,739	W	1,737,966	W	1,618,933
Frequency use rights		1,487,552		(778,509	)		—			843,771		727,239		709,043
Land use right		424,339		(26,966	)		—			1,260		405,362		397,373
Software development costs		249,468		(212,669	)		(10,855	)		34,573		35,950		25,944
Customer relationships		504,156		(252,078	)		—			435,535		343,743		252,078
Other		2,116,736		(1,370,018	)		(9,446	)		763,267		742,065		737,272
Total	W	7,727,833	W	(3,961,511	)	W	(25,679	)	W	3,978,145	W	3,992,325	W	3,740,643

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Details of changes in intangible assets for the years ended December 31, 2008, 2009 and 2010 are as follows (In millions of Korean won):

	For the Year Ended December 31, 2008
			Other
	Beginning		Increase
	Balance		(Decrease)		Acquisition		Disposal			Transfer		Amortization			Impairment			Ending balance
Goodwill	W	1,684,357	W	481,106	W	1,305	W	(55	)	W	1,197	W	(267,078	)	W	(1,093	)	W	1,899,739
Frequency use rights		960,302		—		—		—			—		(116,531	)		—			843,771
Software development costs		19,837		4,950		16,356		(1	)		10,769		(14,713	)		(2,625	)		34,573
Customer relationships		25,139		479,017		—		—			—		(68,621	)		—			435,535
Other		744,327		16,255		131,680		(10,809	)		180,673		(297,085	)		(514	)		764,527
Total	W	3,433,962	W	981,328	W	149,341	W	(10,865	)	W	192,639	W	(764,028	)	W	(4,232	)	W	3,978,145

	For the Year Ended December 31, 2009
			Other
	Beginning		Increase																Ending
	Balance		(Decrease)		Acquisition		Disposal			Transfer			Amortization			Impairment			Balance
Goodwill	W	1,899,739	W	4,774	W	1,807	W	(1,130	)	W	(261	)	W	(166,963	)	W	—		W	1,737,966
Frequency use rights		843,771		—		—		—			—			(116,532	)		—			727,239
Land use right		1,260		418,016		—		(2	)		—			(13,912	)		—			405,362
Software development costs		34,573		(71	)	17,547		—			4,208			(17,131	)		(3,176	)		35,950
Customer relationships		435,535		(128	)	—		—			—			(91,664	)		—			343,743
Other		763,267		24,957		101,417		(8,079	)		151,175			(289,909	)		(763	)		742,065
Total	W	3,978,145	W	447,548	W	120,771	W	(9,211	)	W	155,122		W	(696,111	)	W	(3,939	)	W	3,992,325

	For the Year Ended December 31, 2009
			Other
			Increase
	Beginning		(Decrease)															Ending
	Balance		(Note a)		Acquisition		Disposal			Transfer		Amortization			Impairment			Balance
Goodwill	W	1,737,966	W	6,988	W	33,470	W	—		W	7,453	W	(166,944	)	W	—		W	1,618,933
Frequency use rights		727,239		—		—		—			102,432		(120,628	)		—			709,043
Land use right		405,362		(190	)	—		—			1,850		(9,649	)		—			397,373
Software development costs		35,950		(313	)	13,598		(243	)		279		(8,879	)		(14,448	)		25,944
Customer relationships		343,743		—		—		—			—		(91,665	)		—			252,078
Other		742,065		(3,350	)	110,994		(8,336	)		235,180		(330,283	)		(8,998	)		737,272
Total	W	3,992,325	W	3,135	W	158,062	W	(8,579	)	W	347,194	W	(728,048	)	W	(23,446	)	W	3,740,643

Changes denoted above include activities from both continuing and discontinued operations.

(note a) Other increase (decrease) relates to the merger and change in consolidated subsidiaries.

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The book value and residual useful lives of major intangible assets as of December 31, 2010 are as follows (in millions of Korean won):

Goodwill	1,177,574	Description — Goodwill related to merger of Shinsegi Telecomm, Inc.	Residual Useful lives — 9 years and 3 months
”	14,327	Goodwill related to merger of Empas Corp.	1 year and 10 months
”	338,803	Goodwill related to acquisition of SK Broadband
Co., Ltd.	17 years and 3 months
IMT license	581,355	Frequency use rights relating to W-CDMA service	(note a)
W-CDMA license	98,335	Frequency use rights relating to W-CDMA service	(note b)
WiBro license	25,450	WiBro service	(note c)
DMB license	3,903	DMB service	5 years and 6 months
Customer relationships	252,078	Customer relationships related to acquisition of
SK Broadband Co., Ltd.	2 years and 9 months

| (note a) | With its application for a license to provide IMT 2000 service,
the Company has a commitment to pay W 1,300,000 million to the Korea
Communications Commission (“KCC” former Ministry of
Information Communication). Of which, W 650,000
million was paid in March 2001 by SK IMT Co., Ltd. (a former
subsidiary of the Company), which was merged into the Company on
May 1, 2003, and the remainder is required to be paid over
10 years with an annual interest rate equal to the
3-year-maturity government bond rate minus 0.75% (3.37% as of
December 31, 2010). The remaining future obligation payment is W 170,000 million in 2011. On December 4, 2001,
SK IMT Co., Ltd. received the IMT 2000 license from KCC, and
recorded the total license cost (measured at present value) as
an intangible asset. As a result of the merger with SK IMT Co.,
Ltd., on May 1, 2003, the Company acquired the IMT license
valued W 1,259,253 million and assumed the
related long-term payable with principal amount of W 650,000 million. Amortization of the IMT
license commenced when the Company started its commercial IMT
2000 service in December 2003, under a straight-line basis over
the estimated useful life of the IMT license which expires in
December 2016. As of December 31, 2010, the present value
related to the current portion of payments to be made to KCC is W 1,052 million. |
| --- | --- |
| (note b) | On May 2010, the Company acquired an additional W-CDMA license from KCC and recorded the total license cost (measured
at present value) as an intangible asset. Amortization of the W-CDMA license commenced when the Company started to use the additional
W-CDMA frequency on October 7, 2010, on a straight-line method
basis over the estimated useful life of the W-CDMA license which
expires in December 2016. In addition, the Company has a
commitment to pay W 53,100 million to KCC with
an annual interest equal to the government’s previous year
public funds financing account rate minus 1% (3.58% as of
December 31, 2010). The future payment obligation is W 17,700 million annually from 2012 to 2014. As
of December 31, 2010, the present value of the long-term portion
of payments to be made to KCC is W 2,457 million. |

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(note c) The Company purchased the WiBro license from KCC on March 30, 2005. The license period is seven years from the purchase date. Amortization of the WiBro license commenced when the Company started its commercial WiBro services on June 30, 2006, on a straight line basis over the remaining useful life.

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1. BONDS PAYABLE

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Bonds as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won, thousands of U.S. dollars and thousands of Japanese yen):

		Annual
	Maturity	Interest
	Year	Rate (%)	2008		2009		2010
Domestic general bonds	2009	5.0	W	300,000	W	—	W	—
”	2010	4.0 ~ 6.77		250,000		190,000		—
”	2011	3.0		200,000		200,000		200,000
”	2013	4.0 ~ 6.92		450,000		450,000		450,000
”	2014	5.0		200,000		200,000		200,000
”	2015	5.0		200,000		200,000		200,000
”	2016	5.0 ~ 5.92		200,000		470,000		470,000
”	2018	5.0		200,000		200,000		200,000
Unsecured private bonds (note b)	2009	6.51-7.48		23,205		—		—
”	2009	6.45		30,000		—		—
” (note b)	2010	6.50-7.07		28,182		20,000		—
Unsecured public bonds	2008	5.50		—		—		—
”	2010	6.30-6.81		110,000		110,000		—
” (note c)	2011	9.08		25,000		25,000		25,000
Debentures	2009	6.08		96,172		—		—
” (note d)	2010	8.75 ~ 9.25		80,000		80,000		—
” (note d)	2011	6.65 ~ 9.20		315,718		315,718		315,718
” (note d)	2013	3.99		—		—		150,000
Dollar denominated bonds (US$300,000)	2011	4.25		377,250		350,280		341,670
Dollar denominated bonds (US$500,000) (note e)	2012	7.0		656,251		611,301		596,951
Dollar denominated bonds (US$400,000)	2027	6.63		503,000		467,040		455,560
Yen denominated bonds (JPY15,500,000) (note a)	2012	3 month Euro Yen LIBOR+0.55 ~ 2.5		174,236		195,737		216,548
Yen denominated bonds (JPY5,000,000) (note a)	2012	3 month Euro Yen TIBOR+2.5		—		63,141		69,854
Floating rate notes (US$150,000) (note a)	2010	3-month LIBOR rate +3.05		188,625		175,140		—
Floating rate notes (US$220,000) (note a)	2012	3-month LIBOR rate +3.15		—		256,872		250,558
Bonds with warrants-bearer, detachable, first (note f)	2009	13.65		—		—		10
Bonds with warrants-bearer, detachable, second (note f)	2012	14.23		—		—		1,399
Convertible bonds (SK Telecom)	2009	—		268,415		—		—
Convertible bonds (SK Telecom) (note g)	2014	1.75		—		437,673		437,673
Sub total				4,876,054		5,017,902		4,580,941
Less discounts on bonds				(77,182	)	(82,333	)	(76,122	)

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	Annual
Maturity	Interest
Year	Rate (%)	2008		2009		2010
Less conversion right adjustments			(5,733	)	(81,235	)	(64,735	)
Add long-term accrued interest			17,256		—		—
Add premium on redemption of bonds			—		—		400
Net			4,810,395		4,854,334		4,440,484
Less portion due within one year			(736,003	)	(573,936	)	(874,436	)
Long-term portion		W	4,074,392	W	4,280,398	W	3,566,048

| (note a) | The 3-months Euro Yen LIBOR rate, the 3-months Euro Yen Tibor
rate and the 3-month Libor rate as of December 31, 2010 are
0.19%, 0.34% and 0.30%, respectively. |
| --- | --- |
| (note b) | Bonds were scheduled to be repaid in 3 years with a
two-year grace period; the entire amount was repaid during the
current year. |
| (note c) | In accordance with the covenant provision of related borrowings,
SK Telink Co., Ltd, a subsidiary of the Company, is required to
maintain its debt ratio lower than 1,000 percent until
completion of the principal repayment obligation. If the
subsidiary of the Company does not comply with the covenant
provision until completion of the principal repayment, the
Company may be required to perform an immediate redemption by
written notification by resolution of bondholders committee. |
| (note d) | According to the covenant provision of the related borrowings,
SK Broadband Co., Ltd., a subsidiary of the Company, is required
to maintain its debt ratio lower than 1,000 percent and SK
Broadband Co., Ltd. cannot dispose of its property and equipment
more than twenty times of its net assets in any given fiscal
year. |
| (note e) | According to the covenants of foreign currency debentures, when
a private person or other corporation except for
AIG-Newbridge-TVG Consortium acquire more than 45% of ownership
of SK Broadband Co., Ltd., a subsidiary of the Company, and its
credit rating on global bond (US$500,000 thousand) is downgraded
by S&P or Moody’s, SK Broadband Co., Ltd. shall offer
a buy-back of all foreign currency debentures at the price of
101% of the principal. If the Company does not comply with the
covenant, it may be required to perform an immediate redemption. |
| (note f) | Bonds with stock warrants were issued by PREGM Co., Ltd., a
subsidiary of the Company. First bearer, detachable bonds with
stock warrants, have expired as of December 31, 2010 but has yet
been redeemed. Exercise period of the second bearer, detachable
bonds with stock warrants is from April 19, 2009 to January 23,
2012 and the exercise price is W 4,375 per share. |
| (note g) | On April 7, 2009, the Company issued convertible bonds with a
maturity of five years in the principal amount of US$332,528,000
for US$326,397,463 with conversion price of W 230,010 per share of the Company’s common
stock, which was greater than market value at the date of
issuance. The Company may redeem the principal amount after
3 years from the issuance date if the market price exceeds
130% of the conversion price during a predetermined period. On
the other hand, the bond holders may redeem their notes at 100%
of the principal amount on April 7, 2012 (3 years from the
issuance date). The conversion right may be exercised during the
period from May 18, 2009 to March 24, 2014 and the number of
common shares that can be converted as of December 31, 2010 is
2,090,996 shares. |
| | Conversion of notes to common shares may be prohibited under the
Telecommunications Law or other legal restrictions which
restrains foreign governments, individuals and entities from
owning more than 49% of the Company’s voting stock. If such
49% ownership limitation is violated due to the exercise of
conversion rights, the Company will pay a bond holder a cash
settlement which will be determined at the average price of one
day after a holder exercises its conversion right or the
weighted average price for the following five or twenty business
days. The Company intends to sell treasury shares held in trust
by the Company that corresponds to the number of shares of
common stock that would have been delivered in the |

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| absence of the 49% foreign shareholding restrictions. Unless
either previously redeemed or converted, the notes are
redeemable at 100% of the principal amount at maturity. |
| --- |
| In accordance with a resolution of the Board of Directors on
January 27, 2010 and on July 22, 2010, conversion price has
changed from W 230,010 to W 220,000 and number of common shares that can
be converted has changed from 1,999,997 shares to
2,090,996 shares due to the payment of periodic dividends
and payment of interim dividends. During the year ended December
31, 2010, no conversion was made. |

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1. LONG-TERM BORROWINGS

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Long-term borrowings as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won, thousands of U.S. dollars and thousands of Japanese yen):

Lender	Final — Maturity Year	Annual Interest — Rate (%) (note a)	2008		2009		2010
Shinhan Bank (note a)	2011	91 days CD yield + 0.25		W 200,000		W 200,000		W —
Korea Development Bank	2011	91 days CD yield + 1.02		W 100,000		W 100,000		W 100,000
Citibank	2011	91 days CD yield + 1.20		W 100,000		W 100,000		W 100,000
Nonghyup	2011	91 days CD yield + 1.30		W 100,000		W 100,000		W 100,000
Hana Bank	2011	91 days CD yield + 1.50		W 150,000		W 150,000		W 150,000
Nonghyup	2011	91 days CD yield + 1.50		W 50,000		W 50,000		W 50,000
Shinhan Bank	2011	4.36		W 635		—		—
Korea Development Bank	2011	3.52		W 16,253		W 9,752		W 3,251
Kookmin Bank	2012	4.29		W 11,860		W 9,883		W 5,930
Korea Development Bank	2013	4.29		W 10,577		W 10,577		W 8,814
Small Business Corporation	2009	5.25		W 31		—		—
Credit Agricole Bank	2013	6M Libor + 0.29	US$	30,000	US$	30,000	US$	30,000
Bank of China	”	”	US$	20,000	US$	20,000	US$	20,000
DBS Bank	”	”	US$	25,000	US$	25,000	US$	25,000
SMBC	”	”	US$	25,000	US$	25,000	US$	25,000
Korea Development Bank	2014	4.29		—		W 9,885		W 9,885
Korea Development Bank	2015	4.29		—		—		W 10,273
China Merchants Bank	2018	5.35		—		—	CNY	360,000
Korea Exchange Bank	2015	5.18 ~ 5.44		—		—	CNY	200,000
Industrial Bank of Korea	2010	2.78		W 384		W 128		W —
Total				W 739,740		W 740,225		W 538,153
			US$	100,000	US$	100,000	US$	100,000
				—		—	CNY	560,000
Equivalent in Korean won				W 865,490		W 856,985		W 748,345
Less portion due within one year				(9,019	)	(12,345	)	(512,377	)
Long-term portion				W 856,471		W 844,640		W 235,968

(note a) As of December 31, 2010, the 91-day CD yield is 2.80%.

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The repayment schedule of long-term borrowings at December 31, 2010 is as follows (in millions of Korean won and thousands of U.S. dollars):

			Long-Term Borrowings
	Long-Term		in Foreign Currencies
	Borrowings in		Foreign		Korean Won
Year Ending December 31,	Korean Won		Currencies		Equivalent		Total
2011	W	512,377	W	—	W	—	W	512,377
2012		10,510		—		—		10,510
2013		8,482	US$	100,000 CNY59,929		124,196		132,678
2014 and thereafter		6,784	CNY	500,071		85,996		92,780
Total	W	538,153	US$	100,000 CNY560,000	W	210,192	W	748,345

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1. SUBSCRIPTION DEPOSITS

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The Company receives facility guarantee deposits from subscribers of cellular services at the subscription date. The Company has no obligation to pay interest on these deposits and returns all amounts to subscribers upon termination of the subscription contract.

Long-term subscription guarantee deposits by service type held as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won, except deposit per subscriber amounts):

Service Type	Deposit per — Subscriber		2008		2009		2010
Cellular	W	200,000	W	4,796	W	5,480	W	5,220

Subscription deposits payable recorded as current liabilities represents payables to subscribers who have cancelled their services.

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1. LEASES

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SK Broadband Co., Ltd., a subsidiary, has leased certain equipment related to telecommunication under a finance lease agreement with Cisco Capital Korea. In addition, under certain finance lease agreements with KDB Capital Corp., and other lease companies, Broadband Media Co., Ltd., a subsidiary of the Company, has leased setup-boxes, sharers, etc. The acquisition cost of such leased setup-boxes, equipment and other totaled W 198,226 million as of December 31, 2010. Accumulated depreciation for the leased assets as of December 31,

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2010 is W 76,663 million. The Company’s minimum future lease payments as of December 31, 2010 are as follows (in millions of Korean won):

Year Ending December 31,	Annual Lease — Payments		Interest		Principal
2011	W	50,065	W	4,597	W	45,468
2012		30,508		2,381		28,127
2013		17,678		1,094		16,584
2014		15,761		397		15,364
Total	W	114,012	W	8,469		105,543
Less portion due within one year						(45,468	)
Finance lease liabilities					W	60,075

The Company leased certain machinery and equipment under an operating lease and the Company’s related minimum future lease payments as of December 31, 2010 are as follows (In millions of Korean won):

	Minimum
	Lease
Year Ending December 31,	Payments
2011	W	6,552
2012		4,459
2013 and thereafter		1,904
Total	W	12,915

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1. ASSETS AND LIABILITIES DENOMINATED IN FOREIGN CURRENCIES

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The details of monetary assets and liabilities denominated in foreign currencies (except for bonds payable and long-term borrowings denominated in foreign currencies described in Notes 9 and 10) as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won, thousands of U.S. dollars, thousands of HK dollars, thousands of Japanese yen, thousands of Singaporean dollars, thousands of Euros, thousands of Great Britain pounds, thousands of Swiss francs, thousands of Chinese Yuan, thousands of Australian dollars, thousands of Canadian dollars, thousands of France francs and thousands of Thailand Baht):

	Foreign Currencies — 2008		2009		2010		Korean Won Equivalent — 2008		2009		2010
Cash and cash equivalents	US$	7,269	US$	3,885	US$	3,774	W	9,140	W	4,536	W	4,299
”		EUR85		EUR9		EUR7		152		15		11
”		JPY1,313		JPY35,930		—		18		454		—
”		—		—		CNY150,621		—		—		25,902
”		—		—	SG$	41		—		—		37
Accounts receivable — trade	US$	35,837	US$	36,119	US$	63,291		45,066		42,173		72,106
”		—		JPY54,776		JPY59,566		—		692		831
”		EUR187		EUR187		EUR203		332		313		307
”		—		—		GBP3		—		—		5
”		—		—	AU$	2		—		—		2
”		—		—	CA$	1		—		—		1
”		CNY5,620		—		CNY7,833		1,035		—		1,347
”		—		THB2,852		THB2,968		—		100		113
Short-term loans	US$	2,168	US$	480	US$	300		2,726		560		342
Accounts receivable — other	US$	2	US$	182	US$	14,271		3		212		16,253
”		CNY7,888		CNY1,131		—		1,452		193		—
Guarantee deposits	US$	8	US$	8	US$	147		9		9		167
”		JPY17,397		JPY17,397		JPY16,854		242		220		235
Total assets							W	60,175	W	49,477	W	121,958

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	Foreign Currencies — 2008		2009		2010		Korean Won Equivalent — 2008		2009		2010
Accounts payable	US$	22,295	US$	22,675	US$	32,812	W	28,036	W	26,476	W	37,370
”		JPY1,251		JPY1,251		JPY76		17		16		1
”		FRF11		FRF11		—		3		3		—
”		—		—		CNY85,117		—		—		14,638
”	US$	31,605	US$	22,695	US$	42,446		39,744		26,498		48,335
”		JPY112,370		JPY99,742		JPY945		1,566		1,260		13
”	HK$	41	HK$	19	HK$	29		7		3		5
”		GBP38		GBP78		GBP86		70		146		152
”	SG$	1	SG$	1	SG$	1		1		1		1
”		EUR1,116		EUR810		EUR429		1,983		1,356		650
”		—		CHF19		—		—		22		—
Total liabilities							W	71,427	W	55,781	W	101,165

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1. CAPITAL STOCK AND CAPITAL SURPLUS

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The Company’s outstanding capital stock consists entirely of common stock with a par value of W 500. The number of authorized, issued and outstanding common shares as of December 31, 2008, 2009 and 2010 are as follows:

Authorized shares	220,000,000	220,000,000	220,000,000
Issued shares	81,193,711	80,745,711	80,745,711
Outstanding shares, net of treasury stock	72,486,015	72,344,999	71,094,999

Significant changes in common capital and capital surplus in 2008, 2009 and 2010 are as follows (in millions of Korean won, except for share data):

Shares Issued		Capital Stock		Capital — Surplus
At December 31, 2007	81,193,711	W	44,639	W	2,956,106
Decrease of conversion of convertible bonds due to change in
statutory tax rates	—		—		1,544
Gain on disposal of treasury stock (note a)	—		—		722
Equity in capital surplus changes of affiliates	—		—		482
At December 31, 2008	81,193,711		44,639		2,958,854
Issuance of convertible bonds (note b)	—		—		73,622
Gain on disposal of treasury stock (note c)	(448,000	)	—		(722	)
Equity in capital surplus changes of affiliates	—		—		193
At December 31, 2009	80,745,711		44,639		3,031,947
Equity in capital surplus changes of affiliates	—		—		(167	)
At December 31, 2010	80,745,711	W	44,639	W	3,031,780

(note a) On January 23, 2008, treasury stock of 208,326 shares with carrying value totaling W 49,401 million were sold to employees through a compensatory employee stock purchase plan. As a result of this transaction,

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| | tax effect of accumulated temporary differences related to the
sold treasury stocks exceeded the loss on disposal of treasury
stock. |
| --- | --- |
| (note b) | During the year ended December 31, 2009, convertible bonds
with principal amount of US$332,528,000 were issued and resulted
in the increase in value of the conversion rights (capital
surplus) of the convertible bonds (net of tax effect W 19,445 million). |
| (note c) | On January 9, 2009, the Company retired 448,000 shares
of treasury stock and reduced retained earnings before
appropriation in accordance with the Korean Commercial Law. The
Company’s capital surplus was changed due to the tax effect
of this share retirement. |

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1. RETAINED EARNINGS

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Retained earnings as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

Appropriated	2008 — W	8,295,037	2009 — W	8,890,053	2010 — W	9,350,386
Unappropriated		1,153,148		1,019,700		1,253,013
	W	9,448,185	W	9,909,753	W	10,603,399

The details of appropriated retained earnings as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

Legal reserve	2008 — W	22,320	2009 — W	22,320	2010 — W	22,320
Reserve for loss on disposal of treasury stock		255,984		—		—
Reserve for research and manpower development		872,595		672,595		658,928
Reserve for business expansion		6,344,138		7,045,138		7,519,138
Reserve for technology development		800,000		1,150,000		1,150,000
	W	8,295,037	W	8,890,053	W	9,350,386

a. Legal Reserve

The Korean Commercial Code requires the Company to appropriate as a legal reserve at least 10% of cash dividends paid for each accounting period, until the reserve equals 50% of outstanding capital stock. The legal reserve may not be utilized for cash dividends, but may only be used to offset a future deficit, if any, or may be transferred to capital stock.

b. Reserves for Loss on Disposal of Treasury Stock and Research and Manpower Development

Reserves for loss on disposal of treasury stock and research and manpower development were appropriated in order to recognize certain tax deductible benefits through the early recognition of future expenditures for tax purposes. These reserves will be reversed from appropriated retained earnings in accordance with the relevant tax laws. Such reversal will be included in taxable income in the year of reversal.

c. Reserve for Business Expansion and Technology Development

The reserves for business expansion and technology development are voluntary and were approved by the board of directors and stockholders.

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1. TREASURY STOCK

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The Company acquired 8,707,696 shares of treasury stock in the market for W 2,055,620 million through 2008 in order to provide stock dividends, issue new stocks, merge with Shinsegi Telecom, Inc. and SK IMT Co., Ltd., increase shareholder value, and to stabilize its stock price in the market.

On January 23, 2008, 208,326 shares of treasury stock with total carrying value of W 49,401 million were sold to employees through a compensatory employee stock purchase plan. In addition, the Company offered loans to its employees to purchase aforementioned shares through the Employees’ Stock Purchase Association (Refer to Note 6 Loans for Employees). As a result of this transaction, the Company recognized loss on disposal of treasury stock of W 7,155 million and W 12,718 million of compensation expense for the year ended December 31, 2008.

On January 9, 2009, in accordance with the resolution of Board of Directors on October 23, 2008, the Company additionally acquired 141,012 shares of treasury stock for W 28,938 million and concurrently retired 448,000 treasury shares which was accumulated to date, with the Company’s retained earnings, for W 92,477 million. As a result of these transactions, retained earnings decreased by W 92,476 million.

On December 15, 2009, the Company acquired 4 shares of treasury stock for W 7 million through the acquisition request of odd lot stock, resulting from the merger with Shinsegi Telecom, Inc.

In addition, from July 26, 2010 through October 20, 2010, the Company acquired 1,250,000 shares of treasury stock for W 210,356 million in accordance with a resolution of the Board of Directors on July 22, 2010.

As a result, treasury stocks amount to as of December 31, 2010, 2009 and 2008 are 9,650,712 shares, 8,400,712 shares and 8,707,696 shares with acquisition costs of W 2,202,439 million, W 1,992,083 million and W 2,055,620, respectively.

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1. INCOME TAXES

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Income tax expenses for continuing operation for the years ended December 31, 2008, 2009 and 2010 consist of the following (in millions of Korean won):

Currently	2008 — W	494,163	W	610,561	W	525,488
Changes in net deferred tax liabilities		(194,864	)	(254,891	)	(121,182	)
Income tax expenses	W	299,299	W	355,670	W	404,306

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The difference between income taxes computed using the statutory corporate income tax rates and the recorded income taxes for the years ended December 31, 2008, 2009 and 2010 is attributable to the following (in millions of Korean won):

| Income taxes at statutory income tax rate of 25% in 2008 and 22%
in 2009 and 2010(*) | 2008 — W | 315,091 | W | 308,109 | W | 397,868 | |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Resident surtax payable | | 31,509 | | 30,811 | | 39,787 | |
| Tax credit for investments, technology and human resource
development | | (98,551 | ) | (98,242 | ) | (37,074 | ) |
| Special surtax for agriculture and fishery industries fund
designated by government | | 17,528 | | 16,521 | | 6,720 | |
| Additional income tax (tax refund) for prior periods | | (53,913 | ) | 10,947 | | (7,508 | ) |
| Tax effect from statutory tax rate change | | (28,656 | ) | (3,353 | ) | (2,807 | ) |
| Goodwill amortization not deductible for tax purpose | | 35,382 | | 31,136 | | 31,136 | |
| Undistributed earnings (unrecognized deficit) of subsidiaries | | 3,196 | | (14,821 | ) | (315 | ) |
| Permanent differences | | 40,484 | | 3,586 | | 1,246 | |
| Increase (decrease) in valuation allowance | | 37,229 | | 70,976 | | (24,747 | ) |
| Recorded income taxes | W | 299,299 | W | 355,670 | W | 404,306 | |
| Effective tax rate | | 23.43 | % | 25.30 | % | 24.16 | % |

(*) Tax rate represents statutory tax rate in Korea. However, for certain foreign subsidiaries different tax rates are applied, in accordance with the respective tax jurisdictions.

The tax effects of each type of temporary difference that gave rise to a significant portion of the deferred tax assets and liabilities at December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

	2008
Current:
Allowance for doubtful accounts	W	33,073	W	56,573	W	41,748
Accrued interest income		(2,902	)	(1,662	)	(846	)
Accrued interest expense		21,856		35,179		40,260
Provision for handset subsidy		—		128,785		160,625
Net operating loss carryforwards		7,606		—		117
Tax credit carryforwards		570		225		3
Other		(32,417	)	(13,809	)	(42,117	)
Net deferred tax assets — current		27,786		205,291		199,790
Non-Current:
Depreciation		(9,491	)	6,112		29,575
Loss on impairment of investment securities		99,149		59,450		48,379
Equity in losses (gains) of affiliates, net		(3,458	)	2,468		10,197
Unrecognized deficit (undistributed earnings) of subsidiaries		(59,826	)	111,807		121,529
Tax free reserve for research and manpower development		(80,707	)	(132,244	)	(80,761	)
Loss on valuation of foreign currency swap		(36,332	)	(49,178	)	(36,647	)

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	2008			2009			2010
Loss on valuation of interest swap		7,370			3,392			—
Loss on valuation of foreign currency swap (accumulated other
comprehensive income)		(1,490	)		(5,365	)		16,831
Gain on conversion of convertible bond		(82,091	)		—			—
Consideration for conversion right		(11,325	)		(21,046	)		(14,188	)
Equity in other comprehensive income of affiliates, net		22,960			13,799			22,260
Unrealized loss (gain) on valuation of long-term investment
securities (accumulated other comprehensive income)		(123,636	)		(309,882	)		(186,213	)
Goodwill relevant to leased line		—			189,372			140,809
Loss (gain) on foreign currency translation		(34,773	)		(48,475	)		21,831
Net operating loss carryforwards		137,348			176,532			217,769
Tax credit carryforwards		39,345			14,417			2,043
Other		86,061			52,945			(20,358	)
Total deferred tax assets (liabilities)		(50,896	)		64,104			293,056
Valuation allowance for:
Depreciation		(11,686	)		(8,558	)		(9,006	)
Net operating loss carryforwards		(137,348	)		(176,449	)		(215,399	)
Equity in losses of affiliates and unrecognized deficit of
subsidiaries		(87,314	)		(111,449	)		(83,458	)
Gain on foreign currency translation		(34,773	)		(48,475	)		(21,831	)
Loss on impairment of investment securities		(18,387	)		(18,033	)		(17,850	)
Other		(63,403	)		(13,949	)		(33,133	)
Net deferred tax liabilities — non-current	W	(403,807	)	W	(312,809	)	W	(87,621	)

The expirations of the net operating loss carryforwards and tax credit carryforwards of the Company’s certain subsidiaries which are expected to be utilized are as follows (in millions of Korean won):

Year Ending December 31,	Net Operating Loss — Carryforwards		Tax Credit — Carryforwards
2011	W	84,262	W	3
2012		175,075		—
2013 and thereafter		810,983		356
Total	W	1,070,320	W	359

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Deferred tax assets (liabilities) added to (deducted from) capital surplus or accumulated other comprehensive income as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

Consideration for conversion right	2008 — W	1,545	W	(19,445	)	2010 — W	—
Gain on disposal of treasury stock		7,971		(1,533	)		—
Other capital adjustment		—		190,245			50
Equity in capital adjustments of affiliates		4,677		(3,028	)		4,788
Stock option		99		—			—
Unrealized gain on valuation of long-term investment securities,
net		491,375		(159,942	)		55,435
Equity in other comprehensive income of affiliates, net		(11,722	)	11,028			(923	)
Loss (gain) on valuation of foreign currency swap		(2,636	)	(4,244	)		18,972
Loss (gain) on valuation of interest rate swap		8,241		(4,286	)		(1,257	)
Foreign-based operations’ translation adjustment		226		—			708
Other capital surplus		—		—			163
Total	W	499,776	W	8,795		W	77,936

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1. COMPREHENSIVE INCOME

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Details of comprehensive income for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

	2008
	Profit and					Profit and				Profit and
	Loss Effect			Tax Effect		Loss Effect		Tax Effect		Loss Effect			Tax Effect
Net income	W	972,338				W	1,055,606			W	1,297,176
Other comprehensive income (loss):
Unrealized gain on valuation of long-term investment securities,
net		(1,216,771	)	W	491,376		590,746	W	(159,942	)	(204,611	)	W	55,435
Equity in other comprehensive income of affiliates, net		(70,490	)		(11,722	)	(20,017	)	11,028		4,597			(923	)
Foreign-based operations translation adjustment		60,262			226		(41,753	)	—		(6,246	)		708
Gain (loss) on valuation of currency swap, net		20,360			(2,636	)	14,941		(4,244	)	(74,628	)		18,972
Gain (loss) on valuation of interest rate swap, net		(28,427	)		8,241		15,197		(4,286	)	5,213			(1,257	)
Sub-total		(1,235,066	)	W	485,485		559,114	W	(157,444	)	(275,675	)	W	72,935
Comprehensive income	W	(262,728	)			W	1,614,720			W	1,021,501
Attributable to:
Controlling interests	W	(19,347	)			W	1,806,296			W	1,103,938
Non-controlling interests		(243,381	)				(191,576	)			(82,437	)
	W	(262,728	)			W	1,614,720			W	1,021,501

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1. NET INCOME PER SHARE

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Net income from continuing operation per share and net income per share for the years ended December 31, 2008, 2009 and 2010 are computed as follows (in millions of Korean won, except for share data):

Net income from continuing operation per share

| Net income from continuing operation attributable to the
controlling interests | 2008 — W | 1,204,562 | 2009 — W | 1,242,387 | 2010 — W | 1,373,926 |
| --- | --- | --- | --- | --- | --- | --- |
| Weighted average number of common shares outstanding | | 72,765,557 | | 72,346,763 | | 71,942,387 |
| Net income per share (in Korean won) | W | 16,554 | W | 17,173 | W | 19,098 |

Net income from continuing operation attributable to the controlling interests for the years ended December 31, 2008, 2009 and 2010 are computed as follows (in millions of Korean won):

Net income attributable to the controlling interests	2008 — W	1,215,719	W	1,247,182	W	1,379,613
The controlling interests’ portion of net loss (income)
from discontinued operation attributable to the controlling
interests		(11,157	)	(4,795	)	(5,687	)
Net income from continuing operation attributable to the
controlling interests	W	1,204,562	W	1,242,387	W	1,373,926

Net income per share

Net income attributable to the controlling interests	2008 — W	1,215,719	2009 — W	1,247,182	2010 — W	1,379,613
Weighted average number of common shares outstanding		72,765,557		72,346,763		71,942,387
Net income per share	W	16,707	W	17,239	W	19,177

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The weighted average number of common shares outstanding for 2008, 2009 and 2010 is calculated as follows:

		Number of	Number of	Number
	Date	Shares	Days	of Shares
For 2008:
Number of shares at January 1, 2008		81,193,711		366/366	81,193,711
Treasury stock, at the beginning of the year		(8,609,034	)	366/366	(8,609,034	)
Acquisition of treasury stock	(note a)	(306,988	)	18/365	(14,924	)
Disposal of treasury stock		208,326		344/366	195,804
Number of shares at December 31, 2008	(note b)	72,486,015			72,765,557
For 2009:
Number of shares at January 1, 2009		81,193,711		365/365	81,193,711
Treasury stock, at the beginning of the year		(8,707,696	)	365/365	(8,707,696	)
Acquisition of treasury stock	(note a)	(141,016	)	360/365	(139,252	)
Number of shares at December 31, 2009		72,344,999			72,346,763
For 2010:
Number of shares at January 1, 2010		80,745,711		365/365	80,745,711
Treasury stock, at the beginning of the year		(8,400,712	)	365/365	(8,400,712	)
Acquisition of treasury stock	(note a)	(1,250,000	)	118/365	(402,612	)
Number of shares at December 31, 2010		71,094,999			71,942,387

| (note a) | The Company acquired treasury stocks on various dates for the
years ended December 31, 2008, 2009 and 2010, and the
weighted number of shares is calculated at each transaction date
respectively. |
| --- | --- |
| (note b) | Amount excludes ex dividends shares of 38,188 shares
acquired by the Company prior to year-end, which resulted in
total number of shares of 72,524,203 shares as of
December 31, 2008. |

Diluted net income from continuing operation per share and diluted net income per share amounts for the years ended December 31, 2008, 2009 and 2010 are computed as follows (in millions of Korean won, except for share data):

Diluted net income from continuing operation per share

| Adjusted net income from continuing operation attributable to
the controlling interests | 2008 — W | 1,215,712 | 2009 — W | 1,262,871 | 2010 — W | 1,392,677 |
| --- | --- | --- | --- | --- | --- | --- |
| Adjusted weighted average number of common shares outstanding | | 74,090,301 | | 74,367,734 | | 74,033,383 |
| Net income per share | W | 16,409 | W | 16,981 | W | 18,811 |

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Diluted net income per share

Adjusted net income attributable to the controlling interest	2008 — W	1,226,869	2009 — W	1,267,666	2010 — W	1,398,364
Adjusted weighted average number of common shares outstanding		74,090,301		74,367,734		74,033,383
Diluted net income per share	W	16,559	W	17,046	W	18,888

The numerator and denominator of basic and diluted income per share for the years ended December 31, 2008, 2009 and 2010 are as follows:

Diluted net income per share

	Net Income	Number of Shares		Per-Share Amount
	(In millions of			(In Korean won)
	Korean won)
For 2008
Basic net income per share	W	1,215,719	72,765,557	W	16,707
Effect of convertible bonds (note a)		11,150	1,324,744
Diluted net income per share	W	1,226,869	74,090,301	W	16,559
For 2009
Basic net income per share	W	1,247,182	72,346,763	W	17,239
Effect of convertible bonds (note a)		20,484	2,020,971
Diluted net income per share	W	1,267,666	74,367,734	W	17,046
For 2010
Basic net income per share	W	1,379,613	71,942,387	W	19,177
Effect of convertible bonds (note a)		18,751	2,090,996
Diluted net income per share	W	1,398,364	74,033,383	W	18,888

(note a) The effect of convertible bonds is an increase in net income related to interest expenses that would not be incurred, and increase in the weighted average number of common shares outstanding related to common shares that would be issued, assuming that the conversion of convertible bonds were made at the beginning of the period.

Net incomes from discontinued operation per share for the years ended December, 31, 2008, 2009 and 2010 are W 153, W 66 and W 79, respectively

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1. DIVIDEND DISCLOSURE

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Details of dividends which were declared for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won, except for face value and share data):

Fiscal — Year	Dividend Type	Number of Shares — Outstanding	Face Value	Ratio		Dividends
2008	Cash dividends (interim)	72,793,003	W	500	200 %	W	72,793
	Cash dividends (year-end)	72,524,203	W	500	1,680 %		609,203
	Total					W	681,996
2009	Cash dividends (interim)	72,345,003	W	500	200 %	W	72,345
	Cash dividends (year-end)	72,344,999	W	500	1,680 %		607,698
	Total					W	680,043
2010	Cash dividends (interim)	72,344,999	W	500	200 %	W	72,345
	Cash dividends (year-end)	71,094,999	W	500	1,680 %		597,198
	Total					W	669,543

Dividends payout ratios for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won and %):

Dividends	2008 — W	681,996	2009 — W	680,043	2010 — W	669,543
Net income attributable to the controlling interest	W	1,215,719	W	1,247,182	W	1,379,613
Dividends payout ratio		56.10 %		54.53 %		48.53 %

Dividends yield ratios for the years ended December 31, 2008, 2009 and 2010 are as follows (in Korean won and %):

Dividend per share	2008 — W	9,400	2009 — W	9,400	2010 — W	9,400
Stock price at the year-end	W	209,000	W	169,500	W	173,500
Dividends yield ratio		4.49 %		5.55 %		5.42 %

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1. RESTRICTED DEPOSITS

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a. At December 31, 2010, the Company has guarantee deposits restricted for their checking accounts totaling W 52 million and deposits restricted for charitable trust for the benefit of the public amounting to W 56,500 million.

b. At December 31, 2010, certain short-term and long-term financial instruments totaling W 167,675 million are secured for payment guarantee of short-term borrowings, accounts payable and others.

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1. COMMITMENTS AND CONTINGENCIES

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a. As of December 31, 2010, SK Broadband Co., Ltd., a subsidiary of the Company, agreed to provide guarantees for Broadband Media Co., Ltd.’s loans. For the guarantee, SK Broadband Co., Ltd. has provided its properties as collaterals as follows: W 52,000 million to Woori Bank, W 65,000 million to Hana Bank, W 52,000 million to Kookmin Bank and W 26,000 million to the Korean Federation of Community Credit Cooperatives, respectively. The Company also provided its short-term financial instruments as collaterals as

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follows: W 35,000 million to Hana Bank, W 65,000 million to Korea Exchange Bank, W 34,000 million to Nonghyup, and W 20,000 million to Woori Bank, respectively.

SK Broadband Co., Ltd. has provided guarantees for loans of Broadband CS Co., Ltd. For the guarantee, SK Broadband Co., Ltd. has pledged its properties as collateral in the amount of W 16,900 million to Kookmin Bank as of December 31, 2010.

SK Broadband Co., Ltd.’s board of directors resolved to provide up to W 20,000 million of its time deposits as collateral for members of Employee Stock Purchase Association (ESPA) in order for employees to contribute money to the ESPA, which will be used to purchase the shares of SK Broadband Co., Ltd. in the market. In accordance with the resolution, SK Broadband Co., Ltd. has pledged its time deposits of W 7,400 million as of December 31, 2010.

b. Broadband Media Co., Ltd., a subsidiary of the Company, has provided notes amounting to W 50,000 million as collateral to Hana Bank for its short-term borrowings.

c. As of December 31, 2010, customers of SK Broadband Co., Ltd. have filed a lawsuit with a claim amount of W 24,113 million against SK Broadband Co., Ltd. for alleged violation of customers’ privacy. PAXNet Co., Ltd., a subsidiary of the Company, has been filed a lawsuit in the amount of W 2,200 million for alleged patent infringement. The ultimate outcome of these lawsuits cannot be presently determined.

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1. INSURANCE

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At December 31, 2010, certain of the Company’s assets are insured with local insurance companies as follows (in millions of Korean won, thousands of U.S. dollars, and thousands of Chinese Yuan):

Fire and comprehensive liability		Coverage — US$	3,850 W 10,185,322
W	4,987,033	CNY	1,100,000

In addition, the Company carries directors and officers liability coverage insurance totaling W 80,000 million.

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1. TRANSACTIONS WITH RELATED PARTIES

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Significant related party transactions for the years ended December 31, 2008, 2009 and 2010, and account balances as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

Description	2008		2009		2010
Transactions
SK C&C Co., Ltd.:
Purchases of property and equipment	W	232,238	W	237,459	W	270,865
Commissions paid and other expense		273,279		317,539		316,395
Commission income and other income		12,681		12,606		19,500
SK Corporation:
Purchases of property and equipment		—		85		118
Commissions paid and other expense		177		26,688		33,787
Commission income and other income		313		863		1,486

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Description	2008		2009		2010
SK Energy Co., Ltd.:
Purchases of property and equipment		3,001		—		—
Commissions paid and other expense		17,895		1,071		951
Commission income and other income		8,898		6,673		8,248
SK Engineering & Construction Co., Ltd.:
Purchases of property and equipment		256,548		344,739		357,786
Commissions paid and other expense		17,025		30,999		29,168
Commission income and other income		2,705		2,340		10,500
SK Telesys Co., Ltd.:
Purchases of property and equipment		270,133		237,015		336,265
Commissions paid and other expenses		9,078		110,192		46,513
Commission income and other income		1,967		1,652		12,361
SK Networks Co., Ltd.:
Purchases of property and equipment		28,972		1,513,804		9,252
Commissions paid, leased line and other expense		770,917		967,901		1,083,543
Sales of handsets and other income		33,035		45,349		28,494
SK Networks Service:
Purchases of property and equipment		—		—		663
Commissions paid and other expenses		20,599		28,009		54,049
Commission income and other income		—		509		—
SKC:
Commissions paid and other expenses		26		26		26
Commission income and other income		1,005		909		1,010
M&SERVICE Co., Ltd.:
Purchases of property and equipment	W	1,906	W	1,458	W	921
Commissions paid and other expenses		9,978		10,316		16,372
Commission income and other income		417		1,322		605
SK Mobile Energy., Ltd.:
Purchases of property and equipment		4,167		5,512		3,522
Commission income and other income		23		21		22
Infosec Co., Ltd.:
Purchases of property and equipment		1,270		349		1,656
Commissions paid and other expenses		3,076		1,218		6,324
Commission income and other income		11		6		19
SK Shipping Co., Ltd.:
Purchases of property and equipment		—		23,870		—
Commission income and other income		568		2,775		3,370
SK pinx Co., Ltd.:
Purchases of property and equipment		—		—		3,317
Commissions paid and other expenses		—		—		196

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Description	2008		2009		2010
MROKorea Co., Ltd.:
Purchases of property and equipment		119		3,802		7,041
Commissions paid and other expenses		2,545		3,677		5,761
Commission income and other income		12		19		161
Others:
Purchases of property and equipment		—		12,777		—
Commissions paid and other expenses		1,074		24,758		4,011
Commission income and other income		4,120		4,318		4,235
Balances
SK C&C Co., Ltd.:
Accounts receivable — trade and other	W	2,477	W	1,070	W	935
Guarantee deposits		140		—		—
Accounts payable		93,680		260,732		203,031
Guarantee deposits received		24		5		3,585
SK Corporation:
Accounts receivable — trade and other		46		249		480
Accounts payable		—		2		1,595
Guarantee deposits received		—		23		—
SK Energy Co., Ltd.:
Accounts receivable — trade and other		109		1,323		1,204
Guarantee deposits		—		96		96
Accounts payable		3,548		577		—
Guarantee deposits received		—		—		23
SK Engineering & Construction Co., Ltd.:
Accounts receivable — trade and other		203		208		2,610
Accounts payable		1,164		44,420		42,880
Guarantee deposits received		1,076		82		82
SK Telesys Co., Ltd.:
Accounts receivable — trade and other		486		242		14,207
Accounts payable		20,533		55,585		63,350
SK Networks Co., Ltd.:
Accounts receivable — trade and other		1,598		5,319		3,203
Guarantee deposits		1,230		5,730		5,513
Accounts payable		75,806		287,837		99,284
Guarantee deposits received		3,963		54,461		689
SK Networks Service Co., Ltd.:
Accounts receivable — trade and other		—		—		1
Accounts payable		—		13,028		10,585
M&SERVICE Co., Ltd.:
Accounts receivable — trade and other		—		967		1,591
Accounts payable		—		7,514		4,036

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Description
Infosec Co., Ltd.:
Accounts receivable — trade and other	—	—	2
Accounts payable	—	6	3,045
MROKorea Co., Ltd.:
Accounts receivable — trade and other	—	—	6
Accounts payable	—	1,855	1,985
Others:
Accounts receivable — trade and other	461	1,035	1,027
Guarantee deposits	1	1	—
Accounts payable	4,661	4,271	1,124
Guarantee deposits received	—	—	258

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1. COMPENSATION FOR KEY MANAGEMENT

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The Company considers registered directors who have substantial roles and responsibility for planning, operating, and controlling of the business as key management, and the considerations given to the key management for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

Payee
(including outside directors)	7 registered directors	8 registered directors	8 registered directors
Payroll	W 4,405	W 6,422	W 2,994
Severance indemnities	556	276	702
Total	W 4,961	W 6,698	W 3,696

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1. PROVISION

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a. Provision for point program

The Company, for marketing purposes, grants Rainbow Points and Point Box Points (the “Points”) to its subscribers based on their usage of the Company’s services. Points’ provision was provided based on the historical usage experience and the Company’s marketing policy. Such provision was recorded as accrued expenses or other non-current liabilities in accordance with the expected points’ usage duration the period end date.

Details of change in the provisions for such points for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

Beginning balance	2008 — W	27,668	W	24,889	W	18,856
Increase (provision)		12,430		11,400		7,259
Decrease (usage and reversal)		(15,209	)	(17,433	)	(9,056	)
Ending balance	W	24,889	W	18,856	W	17,059

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Points expire after 5 years. The expected year when unused points as of December 31, 2010 are expected to be used and the respective estimated monetary amount to be paid in a given year are as follows (In millions of Korean won):

	Estimated
	Amount
	to be Paid
	in Nominal		Current
Expected Year of Usage (note a)	Value (note a)		Value
2011	W	8,251	W	7,898
2012		4,779		4,379
2013		2,865		2,513
2014		1,717		1,442
2015		1,030		827
Ending balance	W	18,642	W	17,059

(note a) The above expected year of usage and the current value of the estimated amount to be paid are estimated based on historical usage experience.

b. Provision for handset subsidy

The Company provides provision for handset subsidies to be provided to the subscribers who purchase handsets on an installment basis (refer to Note 2.(z)). Such provision was recorded as accrued expenses or other non-current liabilities in accordance with the expected points when the subsidies are paid. Details of change in the provision for handset subsidies for the years ended December 31, 2008, 2009 and 2010 are as follows (In millions of Korean won):

Beginning balance	2008 — W	—	W	339,696	W	609,733
Increase (provision)		433,276		695,330		941,586
Decrease (subsidy payment)		(93,580	)	(425,293	)	(819,277	)
Ending balance	W	339,696	W	609,733	W	732,042

The estimated monetary amount to be paid in a given year is as follows (in millions of Korean won):

	Estimated
	Amount
	to be Paid
Expected Payment	in Nominal		Current
for the Year Ended December 31,	Value		Value
2011	W	663,740	W	652,564
2012		82,901		79,478
Ending balance	W	746,641	W	732,042

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1. DERIVATIVE INSTRUMENTS

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a. Currency swap contract to which the cash flow hedge accounting

The Company has entered into fixed-to-fixed cross currency swap contracts with Citibank, BNP Paribas and Credit Suisse First Boston International to hedge the foreign currency risk of unguaranteed U.S. dollar denominated bonds, with face amounts totaling US$300,000,000 at annual fixed interest rate of 4.25% issued on April 1, 2004. As of December 31, 2010, in connection with its unsettled foreign currency swap contracts which cash flow hedge

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accounting is applied, an accumulated loss on valuation of derivatives amounting to W 3,321 million (excluding tax effect totaling W 1,478 million and foreign exchange translation gain arising from unguaranteed U.S. dollar denominated bonds totaling W 3,049 million) is accounted for as accumulated other comprehensive loss.

The Company has entered into a floating-to-fixed cross currency swap contract with Credit Agricole Corporate & Investment Bank to hedge the foreign currency risk and the interest rate risk of U.S. dollar denominated long-term borrowings, with face amounts totaling US$100,000,000 borrowed on October 10, 2006. As of December 31, 2010, in connection with its unsettled cross currency interest rate swap contract which cash flow hedge accounting is applied, an accumulated loss on valuation of derivatives amounting to W 5,798 million (net of tax effect totaling W 1,193 million and foreign exchange translation loss arising from U.S. dollar denominated long-term borrowings totaling W 19,090 million) is accounted for as accumulated other comprehensive loss.

The Company has entered into floating-to-fixed cross currency swap contracts with HSBC and SMBC Bank to hedge the foreign currency risk and the interest rate risk of unguaranteed Japanese yen denominated bonds, with face amounts totaling JPY12,500,000,000 issued on November 13, 2007. As of December 31, 2010, in connection with its unsettled cross currency interest rate swap contracts which cash flow hedge accounting is applied, an accumulated gain on valuation of derivatives amounting to W 6 million (net of tax effect totaling W 1,525 million and foreign exchange translation loss arising from unguaranteed Japanese yen denominated bonds totaling W 70,581 million) is accounted for as accumulated other comprehensive income.

SK Broadband Co., Ltd., a subsidiary of the Company, has entered into fixed-to-fixed cross currency swap contracts with Korea Development Bank and other five banks to hedge the foreign currency risk of U.S. dollar denominated bonds, with face amounts totaling US$500,000,000 at annual fixed interest rate of 7.0% issued on February 1, 2005. As of December 31, 2010, in connection with its unsettled foreign currency swap contract to which the cash flow hedge accounting is applied, an accumulated gain on valuation of derivatives amounting to W 8,768 million (excluding foreign exchange translation loss arising from U.S. dollar denominated bonds totaling W 100,350 million) is accounted for as accumulated other comprehensive income. Meanwhile, in connection with the currency swap contract, loss on valuation of currency swap which was incurred before application of hedge accounting, amounting to W 46,856 million is charged to current operations.

In addition, the Company has entered into a floating-to-fixed cross currency swap contract with Mizuho Corporation Bank to hedge the foreign currency risk and the interest rate risk of unguaranteed Japanese yen denominated bonds, with face amounts totaling JPY3,000,000,000 issued on January 22, 2009. As of December 31, 2010, in connection with its unsettled cross currency interest rate swap contract which cash flow hedge accounting is applied, an accumulated gain on valuation of derivatives amounting to W 2,076 million (net of tax effect totaling W 586 million and foreign exchange translation gain arising from unguaranteed Japanese yen denominated bonds totaling W 4,219 million) is accounted for as accumulated other comprehensive income.

In addition, the Company has entered into a floating-to-fixed cross currency swap contract with Bank of Tokyo-Misubish Bank to hedge the foreign currency risk and the interest rate risk of unguaranteed Japanese yen denominated bonds, with face amounts totaling JPY5,000,000,000 issued on March 5, 2009. As of December 31, 2010, in connection with unsettled cross currency interest rate swap contract which cash flow hedge accounting is applied, an accumulated gain on valuation of derivatives amounting to W 466 million (net of tax effect totaling W 131 million and foreign exchange translation gain arising from unguaranteed Japanese yen denominated bonds totaling W 8,758 million) was accounted for as accumulated other comprehensive income.

In addition, the Company has entered into fixed-to-fixed cross currency swap contracts with Morgan Stanley and other five banks to hedge the foreign currency risk of unguaranteed U.S. dollar dominated bonds, with face amounts totaling US$400,000,000 at annual fixed interest rate of 6.63% issued on July 20, 2007. As of December 31, 2010, in connection with its unsettled foreign currency swap contracts which cash flow hedge accounting is applied, an accumulated loss on valuation of derivatives amounting to W 54,179 million (excluding tax effect

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totaling W 15,281 million and foreign exchange translation gain arising from unguaranteed U.S. dollar denominated bonds totaling W 1,930 million) is accounted for as other comprehensive income. Meanwhile, in connection with the currency swap contract, loss on valuation of currency swap which was incurred before application of hedge accounting, amounting to W 129,806 million is charged to current operations.

b. Interest rate swap contract to which the cash flow hedge accounting

The Company has entered into a floating-to-fixed interest rate swap contract with Nonghyup Bank and other two banks to hedge the interest rate risk of long-term floating rate borrowings, with face amounts totaling W 500,000 million borrowed on July 28, 2008 between August 12, 2011. As of December 31, 2010, in connection with its unsettled interest rate swap contract which cash flow hedge accounting is applied, an accumulated loss on valuation of derivatives amounting to W 5,720 million (net of tax effect totaling W 1,826 million) is accounted for as accumulated other comprehensive loss.

c. Interest rate swap contract to which the hedge accounting is not applied

The Company has entered into a floating-to-fixed interest rate swap contract with DBS and Calyon Bank the interest rate risk of floating rate U.S. dollar denominated bonds with face amounts totaling US$220,000,000 issued on April 29, 2009. In connection with unsettled interest rate swap contract to which the hedge accounting is not applied, loss on valuation of currency swap of W 1,671 million and W 3,372 million for the years ended December 31, 2010 and 2009, respectively, are charged to current operations.

As of December 31, 2010, fair values the Company’s derivative instruments recorded in assets or liabilities and details are as follows (in thousands of U.S. dollars, Japanese yen and millions of Korean won):

					Fair Value
					Designated
				Duration	as Cash		Not
Type	Hedged Item	Amount		of Contract	Flow Hedge		Designated		Total
Non-current assets:
Floating-to-fixed cross currency swap	U.S. dollar denominated long-term borrowings	US$	100,000	Oct. 10, 2006 ~ Oct. 10, 2013		12,099		—		12,099
Fix-to-fixed cross currency swap	U.S. dollar denominated bonds	US$	400,000	Jul. 20, 2007 ~ Jul. 20, 2027		(71,390	)	129,806		58,416
Floating-to-fixed cross currency swap	Japanese yen denominated bonds	JPY	12,500,000	Nov. 13, 2007 ~ Nov. 13, 2012		69,062		—		69,062
Fix-to-fixed cross currency swap	U.S. dollar denominated bonds	US$	500,000	Feb. 1, 2005 ~ Feb. 1, 2012		109,118		(46,856	)	62,262
Total assets					W	118,889	W	82,950	W	201,839
Current liabilities:
Fix-to-fixed cross currency swap	U.S. dollar denominated bonds	US$	300,000	Mar. 23, 2004 ~ Apr. 1, 2011	W	7,848	W	—	W	7,848
Floating-to-fixed Interest rate swap	Long-term borrowings	W	500,000	Jul. 28, 2008 ~ Aug. 12, 2011		7,546		—		7,546
Non-current liabilities
Floating-to-fixed cross currency interest swap	Japanese yen denominated bonds	JPY	3,000,000	Jan. 22, 2009 ~ Jan. 22, 2012		1,557		—		1,557
Floating-to-fixed cross currency interest swap	Japanese yen denominated bonds	JPY	5,000,000	Mar. 05, 2009 ~ Mar. 5, 2012		8,161		—		8,161
Floating-to-fixed Interest rate swap	U.S. dollar denominated bonds	US$	220,000	Apr. 29, 2009 ~ Apr.29, 2012		—		5,043		5,043
					W	25,112	W	5,043	W	30,155

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1. CONSOLIDATED STATEMENTS OF CASH FLOWS

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The consolidated statements of cash flows are prepared using indirect method.

Significant non-cash transactions for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

Write-offs of accounts receivable-trade	37,079	43,898	65,192
Acquisition of property and equipment asset through finance
lease contract	76,364	10,709	26,690
Transfer from inventory to property and equipment	46,749	97,767	67,694
Acquisition of machinery by accounts payable	39,640	32,150	—
Transfer from construction in progress to machinery and other
property and equipment	—	1,622,669	1,546,369

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1. SUBSEQUENT EVENT

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On February 11, 2011, the Company disposed its common stock investment in SK C&C Co, Ltd, an available for sale investment and the Company’s ultimate parent company, of 2,050,000 shares (ownership 4.1%) for W 200,695 million or W 97,900 per common share.

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1. SEGMENT INFORMATION

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The Company’s segments are based on the management’s disaggregation of the Company for making operating decisions. Operating segments that have similar economic characteristics and are similar in terms of the nature of their products and services, the nature of the production process, the type or class of customer, and methods of distribution have been aggregated into a segment.

Through 2007, the Company had one reportable operating segment, cellular telephone communication service. In 2008, the Company acquired SK Broadband Co., Ltd., a fixed-line telephone service provider and included it in the consolidation. As a result, the Company has had two operating segments, cellular telephone communication services and fixed-line telecommunication service since 2008. Cellular telephone communication services include cellular voice service, wireless data service and wireless internet services. Fixed-line telecommunication services include telephone services and internet services.

Other segments that cannot be classified into the above-mentioned two segments have been combined and disclosed in an “Other” category below. Other consists primarily of the operations from the leased line services, internet portal services and game manufacturing.

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Details of each segment for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

	For The Year Ended December 31, 2008
	Cellular
	Telephone		Fixed-line
	Communication		Telecommunication						Consolidating			Consolidated
	Service		Service		Other		Sub-total		Adjustments			Amount
Total sales	W	11,706,369	W	2,214,742	W	663,432	W	14,584,543	W	(633,530	)	W	13,951,013
Internal sales		127,301		59,752		446,477		633,530		(633,530	)		—
Net sales		11,579,068		2,154,990		216,955		13,951,013		—			13,951,013
Operating income		2,256,564		22,762		(519,019	)	1,760,307		—			1,760,307
Property and equipment and intangible assets		7,640,698		3,337,532		437,604		11,415,834		—			11,415,834
Depreciation and amortization		1,943,422		535,169		276,769		2,755,360		—			2,755,360

	For The Year Ended December 31, 2009
	Cellular
	Telephone		Fixed-line
	Communication		Telecommunication						Consolidating			Consolidated
	Service		Service		Other		Sub-total		Adjustments			Amount
Total sales	W	12,485,712	W	2,262,451	W	600,503	W	15,348,666	W	(836,319	)	W	14,512,347
Internal sales		394,114		170,299		271,906		836,319		(836,319	)		—
Net sales		12,091,598		2,092,152		328,597		14,512,347		—			14,512,347
Operating income		2,371,663		(171,049	)	(319,379	)	1,881,235		—			1,881,235
Property and equipment and intangible assets		7,870,203		3,378,390		909,611		12,158,204		—			12,158,204
Depreciation and amortization		2,031,472		591,606		106,930		2,730,008		—			2,730,008

	For The Year Ended December 31, 2010
	Cellular
	Telephone		Fixed-line
	Communication		Telecommunication						Consolidating			Consolidated
	Service		service		Other		Sub-total		Adjustments			Amount
Total sales	W	13,431,734	W	2,585,812	W	680,832	W	16,698,378	W	(1,263,005	)	W	15,435,373
Internal sales		592,987		421,554		248,464		1,263,005		(1,263,005	)		—
Net sales		12,838,747		2,164,258		432,368		15,435,373		—			15,435,373
Operating income		2,275,907		(178,487	)	(155,117	)	1,942,303		—			1,942,303
Property and equipment and intangible assets		7,564,433		3,321,625		719,179		11,605,237		—			11,605,237
Depreciation and amortization		2,189,653		585,038		94,077		2,868,768		—			2,868,768

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1. K-IFRS ADOPTION PLAN AND STATUS

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In accordance with IFRS adoption roadmap released by the Financial Supervisory Commission in March 2007, the Company is required to prepare financial statements under the Korean International Financial Reporting Standards (“K-IFRS”) beginning January 1, 2011. In April 2008, the Company set up a task force for the adoption and hired outside consulting firm to evaluate the impact that K-IFRS may have on the Company’s financial

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statements, as well as to train the Company’s employees. The Company performed the following for its preparation of K-IFRS adoption:

(1) Analysis of impact on IFRS adoption and plan: The Company performed preliminary analysis on the impact that K-IFRS may have on the Company’s accounting policy, financial reporting and financial system.

(2) Designing and establishing: The Company performed analysis on the impact that K-IFRS may have on the Company’s accounting policy, financial reporting and financial system, and alternatives. The Company also trained its relevant employees. In addition, the Company made changes to its operating procedures and systems to process reliable financial data in accordance with K-IFRS.

As of December 31, 2010, the Company has completed the above procedures and is currently preparing financial statements in accordance with K-IFRS as of and after conversion date of January 1, 2011.

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1. RECONCILIATION TO UNITED STATES GENERALLY ACCEPTED ACCOUNTING PRINCIPLES

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The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in Korea (“Korean GAAP”), which differ in certain respects from accounting principles generally accepted in the United States of America (“U.S. GAAP”).

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The following reconciles net income for the years ended December 31, 2008, 2009 and 2010 and shareholders’ equity as of December 31, 2008, 2009 and 2010 under Korean GAAP as reported in the consolidated financial statements to the net income and shareholders’ equity amounts determined under U.S. GAAP, giving effect to adjustments for the differences listed above (in millions of Korean won, except per share amounts):

Reference		2008		2009		2010
Net income based on Korean GAAP		W	972,338	W	1,055,606	W	1,297,176
Adjustments:
Loss on impairment of investment securities	32	.a	172,597		2,896		1,020
Reversal of amortization of goodwill	32	.b	185,483		168,590		149,571
Goodwill impairment	32	.b	(106,046	)	—		—
Intangible assets	32	.b	(10,932	)	(3,032	)	(3,566	)
Capitalization of foreign exchange losses and interest expenses
related to tangible assets	32	.c	4,356		7,616		(545	)
Capitalization of interest expenses related to purchases of
intangible assets	32	.c	5,272		5,272		5,272
Nonrefundable activation fees for wireless service only	32	.d	(21,991	)	40,659		9,931
Convertible bonds payable	32	.e	(30,407	)	103,657		(36,511	)
Currency and interest rate swap	32	.f	(478,874	)	543,802		(88,111	)
Provision for credit loss	32	.g	—		—		16,077
Consolidation of variable interest entity	32	.h	(34,303	)	(36,260	)	—
Investment in preferred stock	32	.i	—		—		6,460
Scope of consolidation	32	.j	187,833		(3,920	)	6,763
Reclassification of SK C&C investment	32	.k	47,645		(94,327	)	—
Retroactive application of equity method of accounting on SKBB
investment	32	.l	(21,025	)	—		—
Business combination	32	.m	—		(340,979	)	33,758
Asset Securitization Transactions	32	.n	—		15,489		(15,489	)
FIN 48 effect	32	.o	2,778		2,711		(53,869	)
Effect of changes in tax law	32	.o	30,066		—		—
Tax effect of the reconciling items	32	.p	46,947		(111,098	)	68,684
Net income based on U.S. GAAP		W	951,737	W	1,356,682	W	1,396,621
Less net loss attributable to non-controlling interest			121,129		123,044		128,470
Net income attributable to the Company		W	1,072,866	W	1,479,726	W	1,525,091
Weighted average number of common shares outstanding			72,765,557		72,346,763		71,942,387
Earnings per share based on U.S. GAAP:
Continuing operation — Basic earnings per share		W	11,406	W	17,812	W	21,187
— Diluted earnings per share		W	11,327	W	17,575	W	20,829
Discontinued operation — Basic earnings per share		W	3,338	W	2,641	W	12
— Diluted
earnings per share		W	3,279	W	2,570	W	12

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Reference	2008		2009		2010
Shareholders’ equity based on Korean GAAP Adjustments:	W	11,824,440	W	12,344,625	W	12,478,649
Reversal of amortization of goodwill	32.b	1,026,967		1,195,557		1,345,128
Goodwill impairment	32.b	(118,570	)	(118,570	)	(118,570	)
Capitalization of foreign exchange losses and interest expenses
related to tangible assets	32.c	62,098		69,714		69,169
Capitalization of interest expenses related to purchase of
intangible assets	32.c	(42,572	)	(37,300	)	(32,028	)
Nonrefundable activation fees for wireless service only	32.d	(398,358	)	(357,699	)	(347,768	)
Convertible bonds payable	32.e	(43,049	)	(32,459	)	(68,230	)
Currency and interest rate swap	32.f	(45,503	)	10,375		(6,511	)
Provision for credit loss	32.g	—		—		15,964
Consolidation of variable interest entity	32.h	(32,676	)	—		—
Investment in preferred stock	32.i	—		—		6,359
Scope of consolidation	32.j	(801,413	)	(89,175	)	(93,187	)
Reclassification of SK C&C investment	32.k	(7,114	)	—		—
Retroactive application of equity method of accounting on SKBB
investment	32.l	(62,382	)	—		—
Business combination	32.m	—		94,236		116,410
Asset Securitization Transactions	32.n	—		15,489		—
FIN 48 effect	32.o	(10,440	)	(7,683	)	(61,552	)
Investment securities without readily determinable fair value	32.q	—		8,833		5,000
Determination of acquisition cost of equity interest in
subsidiary	32.r	130,791		130,791		130,791
Additional equity investment in subsidiaries	32.s	1,052,887		1,016,390		1,045,153
Loans receivable for stock issued to employees	32.t	(60,908	)	(57,615	)	(43,052	)
Tax effect of the reconciling items		87,821		75,263		131,008
Shareholders’ equity based on U.S. GAAP	W	12,562,019	W	14,260,772	W	14,572,733
Controlling interest	W	12,215,192	W	13,186,782	W	13,724,876
Non-controlling interest	W	346,827	W	1,073,990	W	847,857

The significant differences are described below. Other differences do not have a significant effect on either consolidated net income or shareholders’ equity.

a. Impairment of Investment Securities and Recoveries

Under Korean GAAP, if the collectible value from the securities is less than acquisition costs based on objective evidence such as bankruptcy of investees, an impairment loss is recognized. In addition, the duration of the impairment in relation to the forecasted recovery of fair value is not considered for Korean GAAP purposes. Under U.S. GAAP, if the decline in fair value is judged to be other than temporary, the cost basis of the individual securities are written down to fair value as its new cost basis and the amount of the write-down is recognized in

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current earnings. Other than temporary impairment is determined based on evidence-based judgment related to potential recovery of the declined fair value up to (or beyond) the cost of investment in the future and the severity and duration of the impairment in relation to the forecasted recovery of fair value. Due to such differences, for U.S. GAAP purposes, losses on impairment of investment securities for the years ended December 31, 2008, 2009 and 2010 increased by W 1,391 million nil and nil respectively, when compared to that under Korean GAAP.

Furthermore, certain available-for-sale securities which impairment losses had been previously recognized, under U.S. GAAP but not for Korean GAAP purposes, were sold or impairment loss was recognized for Korean GAAP purposes during the year ended December 31, 2008, 2009 and 2010. As a result, disposal losses from such available-for-sale securities and impairment losses that were recognized for Korean GAAP purposes, for the year ended December 31, 2008, 2009 and 2010 amounting to W 173,988 million, W 2,896 million and W 1,020 million respectively, which were reversed for U.S. GAAP purposes. Consequently for the years ended December 31, 2008, 2009 and 2010 a total decrease in impairment loss of W 172,597 million, W 2,896 million and W 1,020 million, occurred for U.S. GAAP purposes from Korean GAAP purposes.

Under Korean GAAP, any subsequent recoveries of impaired available-for-sale securities and held-to-maturity securities are allowed and result in an increase of the securities’ carrying amount up to the original acquisition cost, while the related recovery gains are reported in current earnings up to the previously recognized impairment loss amount; as reversal of loss on impairment of investment securities. Under U.S. GAAP, any subsequent increase in carrying amount of the impaired and written down held-to-maturity securities is not allowed and any subsequent increase in fair value of available-for-sale securities is reported in other comprehensive income. For the years ended December 31, 2008, 2009 and 2010 there have been no subsequent recoveries of impaired available-for-sale securities, as such there are no differences to reconcile between the two GAAPs.

The cumulative impairment amounts discussed above as of December 31, 2008, 2009 and 2010 are W 8,023 million, W 5,127 million and W 4,107 million respectively. These amounts represent declines in value reported in retained earnings for U.S. GAAP purposes. However, for Korean GAAP purposes, these declines in value are reported in Accumulated Other Comprehensive Income. There is no GAAP difference in total shareholders’ equity, but rather within the components of shareholders’ equity — Retained Earning versus Accumulated Other Comprehensive Income. Hence, no related reconciling item exists from Korean GAAP shareholder’s equity to U.S. GAAP shareholder’s equity.

b. Goodwill and Other Intangible Assets

Amortization

Under Korean GAAP, business combinations involving other than commonly controlled entities are accounted for as either a purchase or a pooling of interests, depending on the specific circumstances. In case of the Company, all business combinations are accounted for using the purchase method under Korean GAAP. Under the purchase method, the difference between the purchase consideration and the fair value of the net assets acquired is accounted for as goodwill or as negative goodwill. Goodwill and all other intangible assets are amortized over its estimated economic life, generally not to exceed 20 years.

Under U.S. GAAP, effective July 1, 2001, the purchase method of accounting is required for all business combinations other than those under common control. In addition, for fiscal years beginning after December 31, 2001, goodwill related to a company’s subsidiaries and investees, and intangible assets with indefinite useful life are not amortized; however, they are subject to impairment tests on an annual basis and at any other time if events occur or circumstances indicate that the carrying amount of goodwill or other intangible assets may not be recoverable.

Under Korean GAAP, the Company records amortization of goodwill related to the Company’s subsidiaries and equity method investees. Due to the difference in the scope of consolidation, as discussed in Note 32(j), certain investments (entities) considered as a subsidiary under Korean GAAP are considered as an equity method investee under U.S. GAAP and vice versa. As a result, for the years ended December 31, 2008, 2009 and 2010,

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W 156,126 million, W 160,091 million and W 143,718 million of goodwill amortization related to entities (considered as a consolidated subsidiary under U.S. GAAP) was reversed for U.S. GAAP purposes. And, W 29,357 million, W 8,499 million and W 5,853 million over the same period, of goodwill amortization relating to investments (considered as equity method investees under U.S. GAAP) was reversed for U.S. GAAP purposes. In total, goodwill amortization (including equity method investees goodwill amortization) of W 185,483 million, W 168,590 million and W 149,571 million, respectively, was reversed over the same period.

As a result, under U.S. GAAP the Company’s shareholders’ equity increased as of December 31, 2008, 2009 and 2010; relating to amortization of goodwill by W 982,458 million, W 1,142,549 million and W 1,286,267 million, respectively, and relating to amortization of goodwill related to equity method investees by W 44,509 million, W 53,008 million and W 58,861 million over the same period, when compared to that under Korean GAAP. In total, under U.S. GAAP the Company’s shareholder’s equity increased as of December 31, 2008, 2009 and 2010, by W 1,026,967 million, W 1,195,557 million and W 1,345,128 million, respectively.

Impairment

Under U.S. GAAP, circumstances that could trigger an impairment test include but are not limited to a significant adverse change in the business climate or legal factors; an adverse action or assessment by a regulator; unanticipated competition; loss of key personnel; the likelihood that a significant portion of a reporting unit will be sold or otherwise disposed; results of testing for recoverability of a significant asset group within a reporting unit. A reporting unit is an operating segment, or one level below an operating segment. The operating segments (i) that engage in business activities from which they earn revenues and expenses; (ii) whose operating results are regularly reviewed by the Company’s chief operating decision maker and (iii) for which discrete financial information is available consist of the Company and each and every subsidiary. And, there is no one level below an operating segment as discrete financial information for separate components of the Company is not available. To test impairment of goodwill, the fair value of a reporting unit which includes goodwill is compared with its carrying amount. If the carrying amount of a reporting unit exceeds its fair value, the carrying amount of the reporting unit goodwill is compared to the implied fair value of goodwill. If the carrying amount of the reporting unit goodwill exceeds the implied fair value of goodwill, an impairment loss equal to such excess should be recognized in current operations; the loss recognized cannot exceed the carrying amount of goodwill. Under U.S. GAAP, for the years ended December 31, 2008, 2009 and 2010, the Company recognized additional impairment loss of goodwill which was related with subsidiaries of W 106,046, nil and nil, respectively; for the reporting unit of a subsidiary as operating profits and cash flows were lower than expected due to an increase in competition. The fair value of that reporting unit was estimated using the expected present value of future cash flows. Due to such goodwill impairment, for U.S. GAAP purposes, the shareholders’ equity as of December 31, 2008, 2009 and 2010 decreased by W 118,570 million, W 118,570 million, and W 118,570 million, respectively, when compared to that under Korean GAAP.

Goodwill as of December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

Gross carrying amount	2008 — W	3,612,577	W	4,310,820	W	4,379,945
Accumulated impairment		(119,712	)	(119,712	)	(119,712	)
Ending of period	W	3,492,865	W	4,191,108	W	4,260,233

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Changes in the carrying amount of goodwill under U.S. GAAP for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

Beginning of period	2008 — W	3,599,135	W	3,492,865	W	4,191,108
Goodwill increase due to acquisition and subsidiary change
during the period		923		699,373		69,125
Goodwill impairment losses		(107,138	)	—		—
Goodwll disposed of during the period		(55	)	(1,130	)	—
Ending of period	W	3,492,865	W	4,191,108	W	4,260,233

A reconciliation of the recorded goodwill between U.S. GAAP and Korean GAAP as of December 31, 2008, 2009 and 2010 is as follows (in millions of Korean won):

Goodwill amount under Korean GAAP	2008 — W	1,899,739	W	1,737,966	W	1,618,933
Reversal of accumulated goodwill amortization for subsidiaries		982,458		1,142,549		1,286,267
Decrease of goodwill due to scope of consolidation		(391,649	)	(383,494	)	(400,071	)
Acquisition of the investment in SK Broadband Co., Ltd. (Refer
to Note 32.m)		—		55,856		55,856
Acquisition of lease line business from SK Networks Co., Ltd.
(Refer to Note 32.m)		—		635,337		635,337
Merger of TU Media Corporation (Refer to Note 32.m)		—		—		61,017
Increase of goodwill due to acquisition cost adjustment (Refer
to Note 32.r)		108,026		108,026		108,026
Increase of goodwill due to the additional equity investment in
subsidiaries (Refer to Note 32.s)		1,012,861		1,013,438		1,013,438
Accumulated impairment loss		(118,570	)	(118,570	)	(118,570	)
Goodwill amount under U.S GAAP	W	3,492,865	W	4,191,108	W	4,260,233

Other Intangible Assets

Under Korean GAAP, certain development costs can be recorded as intangible assets. Under U.S. GAAP development costs are expensed as incurred. Due to this difference and certain other differences related to intangible assets, for U.S. GAAP purposes, net income for the years ended December 31, 2008, 2009 and 2010 decreased by W 10,932 million, W 3,032 million and W 3,566 million, respectively, when compared to that under Korean GAAP.

The Company does not have any intangible assets with indefinite lives as of December 31, 2008, 2009 and 2010. Intangible assets with finite lives will continue to be amortized over their estimated useful lives.

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The major components and average useful lives of other acquired intangible assets under U.S. GAAP are as follows (in millions of Korean won):

	December 31, 2008					December 31, 2009					December 31, 2010
								Accumulated					Accumulated
	Gross					Gross		Amortization			Gross		Amortization
	Carrying		Accumulated			Carrying		and			Carrying		and
	Amount		Amortization			Amount		Impairment			Amount		Impairment
Amortized intangible assets:
IMT license (13 years)	W	1,188,547	W	(459,178	)	W	1,188,547	W	(549,507	)	W	1,290,979	W	(643,932	)
Customer relationship (4 years)		106,783		(100,671	)		363,202		(119,288	)		363,202		(168,048	)
Software purchased (5 years)		1,216,273		(604,412	)		1,392,644		(809,635	)		1,688,913		(1,096,580	)
Software development cost (5 years)		207,294		(188,028	)		225,073		(203,086	)		240,897		(223,524	)
Other (2 to 20 years)		377,121		(164,433	)		598,293		(353,208	)		1,038,629		(417,002	)
Total	W	3,096,018	W	(1,516,722	)	W	3,767,759	W	(2,034,724	)	W	4,622,620	W	(2,549,086	)

Intangible asset amortization expense for the years ended December 31, 2008, 2009 and 2010 was W 426,760 million, W 520,180 million and W 506,636 respectively. It is estimated to be W 439,208 million, W 319,190 million, W 273,164 million, W 303,225 million and W 220,537 million for the years ending December 31, 2011, 2012, 2013, 2014 and 2015, respectively, primarily related to the IMT license, software purchased and other.

c. Capitalization of Foreign Exchange Losses or Gains and Interest Expenses

Under Korean GAAP, until the year ended December 31, 2002, interest expenses and foreign exchange losses or gains incurred were capitalized when they were related to debt used to finance the construction of property, plant and equipment (or offset against property additions). Effective January 1, 2003, under Korean GAAP, a company is allowed to charge such interest expense and foreign exchange losses or gains to current earnings. For Korean GAAP purposes, beginning the year ended December 31, 2003, the Company adopted the accounting policy not to capitalize such financing costs, on a prospective basis.

Under U.S. GAAP, interest expenses incurred on debt used to finance the construction of property, plant and equipment are capitalized, while related foreign exchange losses or gains are charged to current earnings as incurred. Due to such differences, for U.S. GAAP purposes, the shareholders’ equity as of December 31, 2008, 2009 and 2010 increased by W 62,098 million, W 69,714 million and W 69,169 million, respectively, and net income for the years ended December 31, 2008 and 2009 increased by W 4,356 million and W 7,616 million, respectively, and net income for the year ended December 31, 2010 decreased by W 545 million when compared to that under Korean GAAP.

Under Korean GAAP, until the year ended December 31, 2002, interest expense related to debt used to finance the purchase of intangible assets was capitalized until the asset was put in use. Under Korean GAAP, effective January 1, 2003, the guidance was revised to allow a company to charge such interest expense to current earnings as incurred. Beginning the year ended December 31, 2003, the Company adopted the accounting policy not to capitalize such interest expense and rather expense it in current earnings as incurred, on a prospective basis. For U.S. GAAP purposes, the Company has historically and will continue to charge such interest expense to current earning as incurred.

Due to the historical difference in recognizing interest expense related to debt used to finance the purchase of a intangible asset being capitalized under Korean GAAP and expensed under U.S. GAAP, up to the year ended December 31, 2003, shareholders’ equity as of December 31, 2008, 2009 and 2010 was less by W 42,572 million, W 37,300 million, and W 32,028 million, respectively, and net income was greater by W 5,272 million in each

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period, for U.S. GAAP purposes compared to that under Korean GAAP, as of and for the years ended December 31, 2008, 2009 and 2010.

d. Nonrefundable Activation Fees

Activation fees when the Company provides only Wireless Service

Under Korean GAAP, the Company recognizes nonrefundable activation revenues and costs when the activation service is performed. For U.S. GAAP purposes, the Company defers such revenues and costs and amortizes it over the expected term of the customer relationship. As of December 31, 2010, the expected term of the customer relationship ranged from 36 months to 37 months. Due to such differences in timing of revenue recognition, for U.S. GAAP purposes, net income for the year ended December 31, 2008 decreased by W 21,991 million, and net income for the years ended December 31, 2009 and 2010 increased by W 40,659 million and W 9,931 million, respectively, when compared to that under Korean GAAP. In addition, for U.S. GAAP purposes, the shareholders’ equity as of December 31, 2008, 2009 and 2010 decreased by W 398,358 million, W 357,699 million and W 347,768 million, respectively, when compared to that under Korean GAAP.

Activation fees when the Company provides both Wireless Service and Device

Beginning the year ended December 31, 2009, the Company provides both wireless services and devices. Under Korean GAAP, the Company recognizes nonrefundable activation revenues from the sale of its wireless services along with its devices when the activation service is performed. Under U.S. GAAP, the Company determined that the sale of its wireless services along with its devices constitutes a revenue arrangement with multiple deliverables under relevant accounting literature. The Company accounts for these arrangements as separate units of accounting, whereby the device and related services can be unbundled from one another and treated as separate units of accounting. However, under the guidance activation fees do not meet the criteria as set-forth under to be treated as a separate unit of accounting and is therefore recognized into revenue under the relative fair value method. Activation fees may be (i) recognized upfront with the device sale (the delivered item) to the extent the aggregate of the device and activation fee proceeds do not exceed the fair value of the device or (ii) deferred upon activation and recognized evenly over the service term (the undelivered item) to the extent the aggregate of the device and activation fee proceeds exceed the fair value of the device. For the periods ended December 31, 2009 and 2010, as the aggregate of the device and activation fee proceeds do not exceed the fair value of the device, all activation fees received for revenue arrangements with multiple deliverables were recognized upfront with the corresponding device sales and included in digital handset sales in the Company’s income statement. As a result, there is no effect from the GAAP difference in recognition of activation fee for the revenue arrangement with multiple deliverables in the current year.

e. Convertible Bonds Payable

Under Korean GAAP, the proceeds from issuance of convertible bonds are allocated between the conversion right and the debt issued; the portion allocable to the conversion right is accounted for as capital surplus, with corresponding conversion right adjustment being deducted from related bonds. Such conversion right adjustment is amortized into interest expenses over the period of convertible bonds.

Under U.S. GAAP, convertible bonds are analyzed to evaluate whether a conversion feature should be bifurcated from the debt host, separately recorded and marked to market through earnings. If an embedded conversion option in a convertible bond could be net cash settled upon the occurrence of an event which is outside of an entity’s control, the conversion feature should generally be bifurcated. Meanwhile, under Korean GAAP, no such accounting requirement exists.

Under U.S. GAAP, the conversion option related to the U.S. dollar denominated convertible bonds with principal amounts of US$332,528,000 issued on April 7, 2009, requires bifurcation; the related fair value at

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December 31, 2009 and 2010 were W 60,412 million and W 108,464 million. Additionally, the U.S. dollar denominated convertible bonds with principal amounts of US$329,450,000 issued on May 27, 2004, were redeemed during the year ended December 31, 2009 due to its maturity; related fair value of the conversion options at December 31, 2008 was W 22,798 million. Upon bifurcation of the conversion option and convertible debt on inception date, the Company recorded the conversion option at fair value and determined the initial carrying value assigned to the convertible debt as the difference between the basis of the host debt and the fair value of the conversion option.

In addition, under Korean GAAP, the convertible bonds denominated in a foreign currency are regarded as non-monetary liabilities since they have equity-like characteristics, and the Company does not recognize the associated foreign currency translation gain or loss. Under U.S. GAAP, the convertible bonds denominated in a foreign currency are regarded as a monetary liability and as such the resulting foreign currency translation gain or loss is included in the results of operations. The associated foreign currency translation loss recognized under U.S. GAAP, for the years ended December 31, 2008 is W 76,209 million and foreign currency translation gain for the years ended December 31, 2009 and 2010 are W 40,938 million and W 10,043 million, respectively.

The adjustment amounts in our reconciliation of net income from Korean GAAP to net income based on U.S. GAAP is the aggregate of the GAAP differences in interest expense due to amortization of conversion right adjustment and gain or loss from the conversion of the bonds as well as the changes in fair value of the conversion option and the foreign currency translation gain or loss. The following is a schedule of the respective GAAP differences mentioned above for the years ended December 31, 2008, 2009 and 2010(in millions of Korean won):

| Changes in fair value of the conversion Options recognized under
U.S. GAAP | 42,987 | | 40,510 | (48,052 | ) |
| --- | --- | --- | --- | --- | --- |
| Foreign currency translation gain or loss recognized under
U.S. GAAP | (76,209 | ) | 40,938 | 10,043 | |
| Amortization of conversion right adjustments and others
recognized under Korean GAAP | 2,815 | | 1,185 | 1,498 | |
| Foreign currency transaction gain (Note a) | — | | 21,024 | — | |
| Total | (30,407 | ) | 103,657 | (36,511 | ) |

(Note a) Amount represents gain incurred from redemption of the convertible bonds with principal amounts of US$329,450,000 for the year ended December 31, 2009.

Due to such differences, for U.S. GAAP purposes, the shareholders’ equity as of December 31, 2008, 2009 and 2010 decreased by W 43,049 million, W 32,459 million and W 68,230 million respectively.

f. Derivative Instrument — Currency & Interest Rate Swaps

Under Korean GAAP, when all critical terms of the hedging instrument and the hedged item are the same, a hedging relationship is considered to be highly effective without a formal assessment of hedge effectiveness. Under Korean GAAP, the Company qualified for certain cash flow hedge accounting. Under U.S. GAAP, at inception of the hedge, a formal hedge effectiveness assessment is required, to qualify for hedge accounting or a company can be exempted if it meets the shortcut method requirements. Under U.S. GAAP, the Company did not qualify for any hedge accounting. As a result, the has Company’s currency and interest rate swap, which qualified as a cash flow hedge under Korean GAAP, but did not qualify under U.S. GAAP.

Due to this difference, under Korean GAAP while only the realized mark to market changes in the Company’s currency and interest rate swaps are recognized in current earnings, under U.S. GAAP both realized and unrealized mark to market changes are recognized in current earnings, resulting in adjustments to net income; for the year

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ended December 31, 2008 and 2010 a deduction of W 478,874 million and W 88,111 million, respectively, for the year ended December 31, 2009 an additional W 543,802 million, was recorded compared to that under Korean GAAP. And the shareholders’ equity as of December 31, 2008, 2009 and 2010 decreased by W 45,503 million, increased by W 10,375 million and decreased by W 6,511 million for U.S. GAAP purposes, when compared to that under Korean GAAP.

g. Provision for credit loss

The Company acquired 49% equity interest of HanaSK Card Co., Ltd. (the “HanaSK Card”) for the year ended December 31, 2010 and has accounted for the investment by using the equity method. Under Korean GAAP, the allowance for loan losses for financial institution is generally established based on the classification guidelines promulgated by the Financial Services Commission, which require that the minimum allowance be established based on the classification of the loan. As a result, the HanaSK Card has generally used these guidelines in establishing the minimum reserves and has additionally considered loan loss provisioning guidelines announced by the Financial Services Commission in November 2004. These guidelines include a requirement that financial institutions take into account “expected losses” with respect to credits in establishing their allowances for loan losses.

For U.S. GAAP purposes, the HanaSK Card has established the allowance for loan losses based on an evaluation of the historical performance of the loan portfolios. Allowance for loan losses for corporate loans that are not impaired is based principally on expected loss methodology.

Due to such difference mentioned above and including other miscellaneous GAAP differences, for U.S GAAP purposes, net income for the year ended December 31, 2010 increased by W 16,077 million when compared to that under Korean GAAP. In addition, for U.S. GAAP purposes, the shareholders’ equity as of December 31, 2010 increased by W 15,964 million when compared to that under Korean GAAP.

h. Consolidation of Variable Interest Entities

Under U.S. GAAP, if a business enterprise has a controlling financial interest in a variable interest entity (“VIE”), the assets, liabilities and results of the activities of the VIE should be included in the consolidated financial statements with those of the business enterprise. Under Korean GAAP, there is no specific provision for the accounting treatment of VIEs.

As a result of such difference, S-Telecom (formerly CDMA Mobile Phone Center);a joint-venture which is 50% owned by SKT Vietnam PTE Ltd., a subsidiary of the Company; which is an equity method investment under Korean GAAP was consolidated for U.S. GAAP purposes, for the years ended December 31, 2008. However, during the year ended December 31, 2009, SKT Vietnam PTE Ltd., a subsidiary of the Company entered into a binding agreement to discontinue its agreement with S-Telecom, resulting in SKT Vietnam PTE Ltd. no longer qualifying as a primary beneficiary of S-Telecom. Consequently, S-Telecom no longer qualified as a VIE for consolidation under U.S. GAAP. S-Telecom was deconsolidated and became an equity method investment of the Company as of December 31, 2009.

For the year ended December 31, 2010, new consolidation guidance became effective, whereas a company’s controlling interest over a VIE is demonstrated through both of the following; the power to direct the activities of a that most significantly impact the VIE’s economic performance; and a Company’s obligation to absorb losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. However, subsequent to the deconsolidation of S-Telecom discussed above, the Company has no VIE that qualifies for consolidation under US GAAP as of December 31, 2010.

Due to such differences, for U.S GAAP purposes, net income for the years ended December 31, 2008, 2009 and 2010 decreased by W 34,303 million, W 36,260 million and nil, respectively, when compared to that under Korean

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GAAP. In addition, for U.S. GAAP purposes, the shareholders’ equity as of December 31, 2008, 2009 and 2010 decreased by W 32,676 million, nil and nil, respectively, when compared to that under Korean GAAP.

i. Investment in Preferred Stock

Under Korean GAAP, the Company can apply the equity method of accounting for an investment in preferred stocks if the Company can exercise significant influence on the investee through the investment. Under U.S. GAAP, unless the preferred stock is in-substance common stock, the Company cannot apply the equity method of accounting for preferred investments which are accounted for as available-for-sales equity securities.

As a result of such differences, the Company’s investment in Packet One Network which is an equity method investment under Korean GAAP, is accounted for as available-for-sales equity securities for U.S GAAP purpose. Due to the reversal of the equity loss for U.S. GAAP purposes, net income for the year ended December 31, 2010 increased by W 6,460 million when compared to that under Korean GAAP. In addition, for U.S. GAAP purposes, the shareholders’ equity as of December 31, 2010 increased by W 6,359 million when compared to that under Korean GAAP.

j. Scope of Consolidations

Under Korean GAAP, as explained in Note 2(b) to the consolidated financial statements, majority-owned subsidiaries with total assets below W 10 billion at prior year end are not consolidated. Under U.S. GAAP a company is required to consolidate all majority-owned subsidiaries regardless of total asset size, if it has control of the subsidiary. However, for U.S GAAP purposes the Company did not consolidate majority-owned subsidiaries with total assets below W 10 billion at prior year end as it believes the impact of such difference to be immaterial.

Under Korean GAAP, an entity is consolidated if the Company or a controlled subsidiary of the Company owns more than 30% of the total outstanding voting stock and is the largest stockholder. Under U.S. GAAP, generally an entity of which the Company owns 20% to 50% percent of total outstanding voting stock still may not be consolidated if control does not exist; rather that entity should be accounted for under the equity method of accounting. Due to such differences, for U.S. GAAP purposes, F&U Credit information Co., Ltd., Benex Digital Culture Contents Fund, Benex Movie Expert Fund, Benex Sector Limited Partnership IV, The Contents Com Co., Ltd., PREGM Co., Ltd. and SK Technology Innovation Company are excluded from consolidation and are accounted for under the equity method of accounting, for the year ended December 31, 2010. For other investments in entities where the Company owns 30% to 50%, the consolidated financial statements did not reflect an adjustment in the U.S. GAAP reconciliation as the impact is considered immaterial. The following is the condensed financial information of the investees accounted for under the equity method of accounting under U.S. GAAP but consolidated under Korean GAAP as of and for the year ended December 31, 2010 (In millions Korean won):

Assets	Liabilities	Revenue	Income (Loss)
F&U Credit information Co., Ltd.	14,141	6,043	47,767	213
BMC Digital Culture and Contents Fund	21,753	9	15	(1,819	)
Benex Movie Expert Fund	28,899	3	2,385	410
Benex Sector Limited Partnership IV	49,538	3	—	(644	)
The Contents Com Co., Ltd.	14,916	1	54	398
PREGM Co., Ltd.	40,191	16,109	19,613	(23,691	)
SK Technology Innovation Company	52,949	1,849	—	(1,678	)

Due to such consolidation scope differences, for U.S GAAP purposes, net income for the years ended December 31, 2008 and 2010 increased by W 187,833 million and W 6,763 million, respectively, and net income for the year ended December 31, 2009 decreased by W 3,920 million when compared to those under Korean GAAP. In addition, for U.S. GAAP purposes, the shareholders’ equity as of December 31, 2008, 2009 and 2010 decreased by

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W 801,413 million, W 89,175 million and W 93,187 million respectively, when compared to that under Korean GAAP.

k. Reclassification of Investment in Equity Securities of SK C&C Co., Ltd.

Determining the Parent Company and appropriate Accounting of Equity Securities Investment

As of December 31, 2008, SK C&C held a 31% interest in SK Holdings; SK Holdings held a 23% interest in the Company and the Company in turn held a 30% interest in SK C&C. The three companies held equity interests in each other with voting rights, but no company had any legal or contractual right to be able to have control over the board of directors or equivalent governing body of one another. SK C&C is considered the Company’s ultimate parent under Korean GAAP. Under U.S. GAAP due to the difference in the two GAAPs’ accounting literature and common practice related to the conditions in what constitutes a controlling interest or not, SK C&C is not considered as the Company’s ultimate parent.

Under U.S. GAAP, the general condition for a controlling interest is ownership of a majority voting interest and therefore, as a general rule ownership by an investor, directly or indirectly, of over 50% of the outstanding voting shares of an investee is a condition indicative for the investee to be consolidated. Additionally, guidance indicates that the power to control may still exist with a non-majority (less than 50%) percentage of ownership by contract or otherwise. As a result, under U.S. GAAP, considering the ownership structure and voting percentages, the Company has accounted for its investment in each of the respective entities as an equity method investment.

Under Korean GAAP, the condition for a controlling interest is ownership of a majority voting interest, directly or indirectly. Alternatively a non-majority owner of over 30% of the total outstanding voting shares where such owner is also the largest shareholder is considered indicative of a controlling interest as described on Note 2.a “Principles of Consolidation”. Furthermore, the prevailing industry practices under Korean GAAP is that a company is considered to have control over its investee when it has historically appointed the majority of the board members and management of its investee, notwithstanding the lack of legal or contractual rights to do so.

As SK C&C holds a 31% interest and is the largest shareholder of SK Holdings, under Korean GAAP it is considered the parent company of SK Holdings. SK Holdings, in turn, is the largest shareholder of SK Telecom and has historically appointed the majority of the board members and management of SK Telecom notwithstanding its lack of legal or contractual right to do so. This indicates that SK Holdings has historically controlled the Company and should be considered the parent company of the Company; even though it had neither majority ownership nor legal or contractual right to have control over the board of directors or equivalent governing body. Therefore, SK C&C was considered to be the Company’s ultimate parent company.

Additionally, under Korean GAAP, a subsidiary — the Company, is presumed not to be able to have significant influence over its parent company — SK C&C, as such the Company should not account for its investment in SK C&C under the equity method investment. As a result, during the year ended December 31, 2007, the Company reclassified its investment in equity securities of SK C&C Co., Ltd. from equity method investment to an available-for-sale security; as SK C&C Co., Ltd. became the ultimate parent of the Company in accordance with Korean GAAP. Under Korean GAAP, the carrying amount of the equity investment at the date that the Company ceased to apply equity method was the Company’s new acquisition cost and the unrealized holding gains and losses incurred subsequent to the reclassifications are excluded from earnings and are reported within other comprehensive income.

Under U.S. GAAP, up to the year ended December 31, 2008, the Company owned 30% of SK C&C. When calculating the equity method adjustment, the Company’s investment in SK C&C was considered to be reduced by SK C&C’s indirect reciprocal holding of the Company through SK Holdings. As a result, the Company applied a 30% percentage to the financial information of SK C&C, after excluding SK C&C’s indirect reciprocal holding of the Company through SK Holdings, to compute the Company’s income related to its investment in SK C&C. The reciprocal interests effect of SK C&C’s ownership interest in the Company through SK Holdings for the year ended

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December 31, 2008 totaled W 55,067 million. Refer below to the Company’s condensed financial information of SK C&C under U.S. GAAP.

2009

During the year ended December 31, 2009, the Company disposed of 21% of its shares in SK C&C and the Company’s ownership percentage decreased to 9%. As a result, the Company reclassified its investment in equity securities of SK C&C Co., Ltd. to available-for-sale securities reported at the fair value from equity method investment for U.S GAAP purposes; same as under Korean GAAP.

Due to such differences, for U.S. GAAP purposes, net income increased by W 47,645 million for the year ended December 31, 2008, and net income decreased by W 94,327 million for the year ended December 31, 2009 when compared to that under Korean GAAP. In addition, the shareholders’ equity decreased by W 7,114 million at December 31, 2008, when compared to that under Korean GAAP.

At December 31, 2009 and 2010, there is no GAAP difference as the Company’s investment in SK C&C Co., Ltd. is accounted for as an available-for-sale security reported at the fair value under both GAAP.

The following is the condensed financial information of SK C&C Co., Ltd. under U.S GAAP as discussed above, for the periods it was accounted for under the equity method, as of and for the year ended December 31, 2008 (in millions of Korean won):

Current assets	December 31, 2008 — W	890,816
Non-Current assets		3,576,000
Total	W	4,466,816
Current liabilities	W	1,199,621
Non-Current liabilities		1,027,722
Shareholder’s equity		2,239,473
Total	W	4,466,816

Operating revenue	2008 — W	1,275,185
Operating expenses		(1,185,971	)
Operating income		89,214
Other income (expenses), net		131,458
Provision for income taxes		(3,785	)
Net income	W	216,887

l. Retroactive Application of Equity Method of Accounting

In March 2008, the Company purchased an additional 38.7% of equity interests of SK Broadband Co., Ltd. (“SKBB”), increasing its total percentage of ownership to 43.4%. At which point the Company began accounting for SKBB as a consolidated subsidiary under Korean GAAP.

Under Korean GAAP, when the investor is able to exercise significant influence through an step-up acquisition of an investee’s shares, investment difference shall be calculated as if the shares were acquired in a lump-sum purchase on the same date significant influence became exercisable. In such a case, consideration for acquisition shall be computed as the sum of the fair values of shares acquired until the date that immediately precedes the date

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on which significant influence became exercisable and the acquisition cost of shares additionally acquired on the date on which significant influence became exercisable. Unrealized gain or loss that arise on the fair-value valuation of the investee’s shares held until the date on which significant influence becomes exercisable shall be included in current earnings of the period that includes the applicable date of the equity method.

Under US GAAP, the investment in SKBB previously held before the acquisition and accounted for under the fair value method is required to be changed to the equity method of accounting retroactively in a manner consistent with the accounting for a step-up acquisition of a subsidiary. As a result of such retroactive application of equity method of accounting on SKBB, net income for the years ended December 31, 2008 decreased by W 21,025 million, respectively, and shareholders’ equity as of December 31, 2008 decreased by W 62,382 million, when compared to that under Korean GAAP. Due to the additional purchase of SKBB discussed below, there is no GAAP difference for the year ended December 31, 2009.

During the year ended December 31, 2009, the Company acquired the additional 7.2% equity interest in SKBB, which resulted in the Company’s ownership increase to more than 50%, and as a result SKBB was included in the Company’s consolidation under U.S. GAAP. Refer to Note 32(m) for additional information related to the Company’s investment in SKBB.

m. Business Combination

(1) Achieved-in-Stages

Under U.S. GAAP, in a business combination achieved in stages, the acquirer shall remeasure its previously held equity interest in the acquiree to the fair value on the day the Company obtains control (due to the additional acquisition) and recognizes the resulting gain or loss, if any, in earnings. In prior reporting periods, the acquirer may have recognized its equity portion of the investee’s changes in other comprehensive income, if so, such amount shall be reclassified and included in the calculation of gain or loss as of the acquisition date. Under Korean GAAP, in a business combination achieved in stages, the acquirer is not required to remeasure its previously held equity interest in the acquiree.

(a) Achieved-in-Stages: SKBB

During the year ended December 31, 2009, the Company acquired an additional 47,187,105 common shares or 7.2% of the outstanding shares of SKBB for W 241,176 million, which increased the Company’s ownership from 43.4% to 50.6%, at which point, its previous equity interest of 43.4% was remeasured by the closing market price of common stock of SKBB on the day the Company obtained control due to additional acquisitions. The fair value was evaluated at W 548,114 million, at W 5,350 per share of SKBB common stock, resulting in a loss of W 439,920 million. Refer to Note 32 (l) above additional discussion on the Company previous ownership of 43.4%.

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The Company’s allocation of purchase price to the acquired net assets of SKBB recorded at the fair value is as follows (in millions of Korean won):

	SK Broadband
	(“SKBB”)
	(100%)
Current assets	W	793,889
Noncurrent assets
Investments		61,799
Depreciable fixed assets		2,114,023
Land		297,946
Other long-term assets		226,257
Identifiable intangible assets		191,668
Total assets		3,685,582
Interest-bearing debts		(1,775,416	)
Other liabilities		(393,916	)
Total liabilities		(2,169,332	)
Net assets	W	1,516,250
Goodwill		55,856
Less: Remeasured exisiting equity interest of SKBB		(548,114	)
Less: Non-controlling interest of SKBB		(782,816	)
Purchase price of 7.2% additional acquisition of SKBB	W	241,176

(b) Achieved-in-Stages: SK Telink

(i) SK Telink’s purchase of 100% of TU Media

As of December 31, 2009, SK Telecom had 44.2% interest in TU Media, an equity method investee of the Company and 90.8% interest in SK Telink, a consolidated subsidiary. On November 1, 2010, SK Telink purchased 100% of TU Media, in exchange for newly issued SK Telink shares, and merged the operations of TU media into SK Telink.

SK Telecom obtained control of TU Media as a result of SK Telink’s purchase of TU Media, and the transaction was accounted for as a business combination achieved in stages. Accordingly, SK Telecom’s previously held equity interest in TU media was remeasured to W 41,237 million, resulting in a gain of W 6,368 million ( W 41,237 million less the W 34,869 million book value) in earnings.

SK Telecom recognized TU Media’s identifiable net assets at their fair values of W 15,739 million and goodwill of W 61,017 million. The fair value of the total consideration for TU Media was W 76,756 million; including the fair value of the previously held interest W 41,237 million, the fair value of the additional W 22,823 million acquisition, and the fair value of the non-controlling interest (at the consolidated level) of W 12,696 million. The fair value of the consideration was valued through a third party valuation specialist; both SK Telink and TU Media are not publicly traded and therefore do not have readily determinable market prices available.

SK Telecom’s ownership in SK Telink decreased from 90.8% to 83.5% as a result of SK Telink’s issuance of new shares in connection with the acquisition of TU Media. Refer below (b)(ii) related to SK Telecom’s decrease in ownership in SK Telink due to this transaction.

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In addition, under Korean GAAP as TU Media is accounted for as a consolidated subsidiary, SK Telink’s purchase of TU Media’s shares was accounted for as an Under Common Control transaction. Refer below (3) for discussion on the Korean GAAP treatment and difference between the U.S. GAAP treatment discussed above.

The allocation of the consideration paid to the acquired net assets of TU media recorded at the fair value is as follows (in millions of Korean won):

	TU Media
	(100%)
Consideration for additional acquisition of TU Media	W	22,823
Fair value of previously held TU Media		41,237
Fair value of noncontrolling interest of TU Media		12,696
Fair value of TU Media	W	76,756
Current assets	W	36,554
Noncurrent assets
Depreciable fixed assets		148,093
Identifiable intangible assets		15,503
Other long-term assets		11,925
Total assets		212,075
Interest-bearing debts		(176,974	)
Other liabilities		(19,362	)
Total liabilities		(196,336	)
Net assets	W	15,739
Fair value of TU Media	W	76,756
Less: Net assets		15,739
Goodwill	W	61,017

(ii) Decrease in ownership due to SK Telink’s issuance of additional shares

Prior to SK Telink’s purchase of TU Media, the Company owned 90.8% of SK Telink. On November 1, 2010, as part of the acquisition of TU Media, SK Telink issued new shares to all TU Media shareholders, including SK Telecom and other nonaffiliated entities, in exchange for TU Media shares.

Due to SK Telink’s (subsidiary) issuance of new shares, SK Telecom’s (parent) ownership in SK Telink decreased from 90.8% to 83.5%. However, overall, even though SK Telecom’s ownership decreased, due to the acquisition of additional TU Media shares through SK Telink, SK Telink’s book value (net assets) increased from W 148,731 million to W 225,488 million; and concurrently, SK Telecom’s total carrying amount of SK Telink increased from W 176,239 million to W 188,191 million, from pre-merger to post-merger with TU Media, an increase of W 11,952 million in equity.

(2) Acquisition-related Costs of the Acquirer

Under Korean GAAP, Costs incurred directly related to the business combination is capitalized as part of acquisition cost. But, under the revised U.S. GAAP regarding the “ Business Combination ”, effective January 1, 2009, such acquisition costs are accounted for separately from the business combination — generally expensed as incurred.

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(3) Under Common Control

Common control transactions are accounted for by the receiving entity based on the carrying amounts in the consolidated financial statements at the date of transfer. Under US GAAP, common control exists when (1) an individual or entity owns more than 50 percent of the voting interest of each entity; (2) immediate family members hold more than 50 percent of the voting interest of each entity, and there is no evidence that they will not vote in concert; or (3) a group of shareholders holds more than 50 percent of the voting interest of each entity and there is a written agreement that the shareholders will vote in concert. In addition to those conditions, under Korean GAAP, common control also exists when entities of which the Company or a controlled subsidiary owns more than 30% of the total outstanding voting stock and is the largest stockholder.

As a result, the Company’s acquisition of a leased line business from SK Networks Co., Ltd., the additional acquisition of SKBB interest and merger achieved in stages between SK Telink Co., Ltd and TU Media Corporation were treated under common control transactions under Korean GAAP. But as discussed above, for U.S GAAP purposes, the transactions were scoped out of as common control transactions and as such, the identifiable asset acquired and the liabilities assumed from the business were measured at their fair value on acquisition date.

Due to the differences in business combination accounting discussed above, for U.S. GAAP purposes, the shareholders’ equity as of December 31, 2008, 2009 and 2010 increased by nil, W 94,236 million and W 116,410 million; while, net income for the years ended December 31, 2008, 2009 and 2010 decreased by nil, W 340,979 million and W 33,758 million when compared to that under Korean GAAP.

The additional information on the Company’s acquisitions which were treated under common control transactions under Korean GAAP but treated as acquisitions achieved in stages under U.S. GAAP is as follows;

(4) Acquisition of leased line business from SK Networks Co., Ltd.

The identifiable assets acquired and the liabilities assumed from the business were measured at their fair values at the acquisition date. The purchase price ( W 892,755 million in cash) exceeded the fair value of net tangible and identifiable intangible assets acquired from SK Networks Co., Ltd. and as a result, the Company recorded goodwill amounting to W 635,337 million in connection with this transaction. The allocation of the purchase price of the assets acquired and liabilities assumed based on their fair values was under U.S. GAAP as follows (in millions of Korean won):

Current assets	SK Networks — W	11,834
Noncurrent assets
— Depreciable fixed assets		773,608
— Land		3,889
— Other long-term assets		5,912
— Identifiable intangible assets		132,135
Goodwill		635,337
Interest-bearing debts		(580,207	)
Other liabilities		(19,285	)
Deferred tax liabilities		(70,468	)
Total	W	892,755

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(5) Pro forma information

SK Broadband Co., Ltd.’s revenue and net loss included in the Company’s consolidated income statement for the year ended December 31, 2009, since acquisition date of July 21, 2009, totaled W 977,386 million and W 133,737 million, respectively. SK Networks Co., Ltd.’s revenue and earnings included in the Company’s consolidated income statement for the year ended December 31, 2009, since acquisition date of September 30, 2009, was W 29,752 million and W 3,053 million. TU Media Corporation’s revenue and net loss included in the Company’s consolidated income statement for the year ended December 31, 2010, since acquisition date of November 1, 2010, was W 102,896 million and W 1,589 million, respectively.

The combined revenue and earnings of the Company under U.S. GAAP had the acquisition of SKBB investment, SK Networks Co., Ltd.’s leased line business and merger of TU Media Corporation occurred as of January 1, 2008, 2009 and 2010 are as follows (in millions of Korean won):

	Year Ended December 31, — 2008		2009		2010
Revenue	W	13,540,293	W	13,978,799	W	14,276,742
Earnings		738,469		1,275,801		1,414,138

n. Asset Securitization Transactions

Under U.S. GAAP, a transfer of financial assets in an asset securitization is accounted for as a sale only if all of the following conditions are met;

A. Isolation of transferred financial assets. The transferred financial assets have been isolated from the transferor but presumptively beyond the reach of the transferor and its creditors, even in bankruptcy or other receivership. Notwithstanding the isolation analysis, each entity involved in the transfer is subject to the applicable guidance on whether it shall be consolidated. A set-off right is not an impediment to meeting the isolation condition.

B. Transferee’s rights to pledge or exchange. This condition is met if both of the following conditions are met:

1. Each transferee (or, if the transferee is an entity whose sole purpose is to engage in securitization or asset-backed financing activities and that entity is constrained from pledging or exchanging the assets it receives, each third-party holder of its beneficial interests) has the right to pledge or exchange the assets (or beneficial interests) it received.

2. No condition does both of the following:

i. Constrains the transferee (or third-party holder of its beneficial interests) from taking advantage of its right to pledge or exchange

ii. Provides more than a trivial benefit to the transferor

If the transferor, its consolidated affiliates included in the financial statements being presented, and its agents have no continuing involvement with the transferred financial assets, the sale condition is met.

C. Effective control. The transferor, its consolidated affiliates included in the financial statements being presented, or its agents do not maintain effective control over the transferred financial assets or third-party beneficial interests related to those transferred assets. A transferor’s effective control over the transferred financial assets includes, but is not limited to, any of the following:

1. An agreement that both entitles and obligates the transferor to repurchase or redeem them before their maturity

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1. An agreement, other than through a cleanup call, that provides the transferor with both of the following:

i. The unilateral ability to cause the holder to return specific financial assets

ii. A more-than-trivial-benefit attributable to that ability.

1. An agreement that permits the transferee to require the transferor to repurchase the transferred financial assets at a price that is so favorable to the transferee that it is probable that the transferee will require the transferor to repurchase them

However, under Korea GAAP, when a transfer of financial assets in an asset securitization is conducted in accordance with the Korean Asset Securitization Act which does not prohibit transferor to purchases subordinated bond of and provides credit enhancement to securitization vehicle, such transfer is generally accounted for as a sale of financial assets and the securitization vehicle is generally not consolidated into the transferor.

Due to such differences, for U.S. GAAP purposes, the shareholders’ equity as of December 31, 2009 and 2010 decreased by W 15,489 and nil, respectively, and net income for the year ended December 31, 2009 increased by W 15,489 million and net income for the year ended December 31, 2010 decreased by W 15,489 when compared to that under Korean GAAP. As there was no transfer of financial assets during the years ended December 31, 2008 , no such GAAP differences were incurred to reconcile.

o. Income Taxes

Uncertainty in income taxes

Under U.S. GAAP, effective January 1, 2007, the Company adopted authoritative guidance on accounting for uncertainty in income taxes which set outs a consistent framework to be used to determine the appropriate level of tax reserve for uncertain tax positions. No such accounting is required under Korean GAAP. As a result of the adoption, the income tax expenses for the years ended December 31, 2008 and 2009 decreased by W 2,778 million and W 2,711 million, respectively, whereas income tax expenses for the years ended December 31, 2010 increased by W 53,869 million. In addition, for U.S. GAAP purposes, the shareholders’ equity as of December 31, 2008, 2009 and 2010 decreased by W 10,440 million, W 7,683 million and W 61,552 million, respectively, when compared to that under Korean GAAP.

Effect of change in tax law

Under Korean GAAP, the effect of changes in tax law related directly to shareholders’ equity are recorded in the shareholders’ equity. Under U.S. GAAP, the effect of changes in tax law related to items directly in shareholders’ equity are recorded in continuing operations in the period of the new tax law enactment. Due to such differences and the new tax law enactment in Korea for U.S GAAP purposes, net income for the year ended December 31, 2008 increased by W 30,066 million when compared that under Korean GAAP. There were no new tax law enactment impacts on net income for the years ended December 31, 2009 and 2010, respectively.

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p. Tax effect of the reconciling items

The applicable statutory tax rate used to calculate the tax effect of the reconciling items on the net income reconciliation between Korean GAAP and U.S. GAAP for the years ended December 31, 2008, 2009 and 2010 were 27.5%, 24.2% and 24.2%, respectively. Such tax rates are inclusive of resident surtax of 2.5%, 2.2% and 2.2%. The following is a reconciliation of the tax effect of the reconciling items on net income (in millions Korean won):

Net income based on U.S. GAAP	951,737		1,356,682		1,396,621
Net income based on Korean GAAP	972,338		1,055,606		1,297,176
Total GAAP adjustments on net income	(20,601	)	301,076		99,445
Adjustments related to tax items:
— FIN 48 effect	(2,778	)	(2,711	)	53,869
— Tax effect of the reconciling items	(46,947	)	111,098		(68,684	)
— Effect of changes in tax law	(30,066	)	—		—
Non-taxable adjustments:
— Reversal of amortization of goodwill (Note a)	(179,116	)	(164,341	)	(171,254	)
— Goodwill impairment (Note a)	105,781				—
— Currency swap (Note b)	(17,077	)	—		14,559
— Retroactive application of SK Broadband Investment
(Note b)	21,025		—		—
— Consolidation of variable interest entity (Note c)	34,303		36,260		—
— Scope of consolidation (Note d)	(187,833	)	3,920		(6,763	)
— Business combination (Note e)	—		328,172		(7,520	)
— Provision for credit loss (Note b)	—		—		(16,077	)
— Nonrefundable activation fees and others (Note b)	4,779		(3,635	)	(590	)
Taxable GAAP adjustments	(318,530	)	609,839		(103,015	)
Applicable tax rate	27.5	%	24.2	%	24.2	%
Tax effect	(87,596	)	147,581		(24,930	)
Tax effect from statutory tax rate change on reconciling item
(Note f)	40,649		(36,483	)	(43,754	)
Tax effect of the reconciling items	(46,947	)	111,098		(68,684	)

| (Note a) | Certain goodwill amortization constitutes a non-deductible
expense under local tax law and as such, the corresponding
effects were not considered in the U.S. GAAP adjustment. |
| --- | --- |
| (Note b) | The amount represents the U.S. GAAP adjustment from our equity
method investees and subsidiary. Due to continuing loss of the
investees and subsidiary, the corresponding tax effect were not
considered. |
| (Note c) | As of December 31, 2009, the amount represents
non-controlling interest of S-Telecom which was consolidated
under U.S. GAAP while accounted for as an equity method investee
under Korean GAAP. Under Korean GAAP, due to the continued loss
of S-Telecom, corresponding loss were no longer deductible. |
| (Note d) | The amount represents the certain entities’ non-deductible
(or non-taxable earnings) recognized under U.S. GAAP. These
entities are consolidated under Korean GAAP, while they are
accounted for as an equity method investee under U.S. GAAP and
vice versa. |

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| (Note e) | The amount mainly represents the non-taxable adjustment related
to the revaluation of pre-existing ownership of SKBB —
step-acquisition acquisition, under U.S. GAAP; under Korean GAAP
no revaluation of the pre-existing ownership was made. |
| --- | --- |
| (Note f) | Represents decrease of deferred tax liabilities due to an
enactment of a new tax law. We applied 24.2%, 22% and 22% for
years ended December 31, 2008, 2009 and 2010, respectively,
to calculate current deferred tax assets or liabilities and
long-term deferred tax assets or liabilities in accordance with
the enacted tax law. |

q. Marketable Securities and Investments Securities

Under Korean GAAP, non-marketable securities should be classified as available-for-sale and carried at cost or fair value if applicable, with unrealized holding gains and losses reported as other comprehensive income. Under U.S. GAAP, investment in non-marketable equity securities that do not have a readily determinable fair value should be accounted for under the cost method. Due to such differences, for U.S. GAAP purposes, shareholders’ equity as of December 31, 2008, 2009 and 2010 increased by nil, W 8,833 million and W 5,000 million, respectively, when compared to that under Korean GAAP.

Under Korean GAAP, all transaction costs that are directly attributable to the acquisition of a security are included in the initial measurement of any security. But, under U.S. GAAP, fees paid to the seller less any fees received are included as part of the initial investment in the debt security that are classified as Held-to-Maturity or Available-for-Sales and are recognized as an adjustment to the yield of the debt security over its remaining life. All other costs incurred as part of the acquisition are expensed immediately as incurred. As the impact of such GAAP differences on the net income and shareholders’ equity as of and for the years ended as of December 31, 2008, 2009, and 2010, no reconciling adjustment exists.

Information with respect to available-for-sale and held-to-maturity securities under U.S. GAAP guidance at December 31, 2008, 2009 and 2010 is as follows (in millions of Korean won):

			Gross		Gross
	Cost		Unrealized		Unrealized			Impairment			Fair
	(Amortized Cost)		Gains		Losses			Losses			Value
At December 31, 2008:
Available-for-sale
Equity securities	W	1,878,049	W	681,260	W	(73	)	W	(208,453	)	W	2,350,783
Debt securities		5,696		—		—			(552	)		5,144
Held-to-maturity securities		112		—		—			—			112
	W	1,883,857	W	681,260	W	(73	)	W	(209,005	)	W	2,356,039
At December 31, 2009:
Available-for-sale
Equity securities	W	603,206	W	1,223,542	W	(1,293	)	W	(4,997	)	W	1,820,458
Debt securities		354,886		—		(122	)		(884	)		353,880
Held-to-maturity securities		1,006		—		—			—			1,006
	W	959,098	W	1,223,542	W	(1,415	)	W	(5,881	)	W	2,175,344
At December 31, 2010:
Available-for-sale
Equity securities	W	417,196	W	994,103	W	(446	)	W	(1,744	)	W	1,409,109
Debt securities		34,962		—		—			(2,702	)		32,260
Held-to-maturity securities		—		—		—			—			—
	W	452,158	W	994,103	W	(446	)	W	(4,446	)	W	1,441,369

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Gross proceeds from the sale of available-for-sale securities were W 470,309 million, W 1,662,501 million and W 299,419 million for the years ended December 31, 2008, 2009 and 2010, respectively. Gross realized gains for the years ended December 31, 2008, 2009 and 2010 were W 14,466 million, W 299,531 million and W 167,223 million, respectively. Gross realized losses for the years ended December 31, 2008, 2009 and 2010 were W 500 million, W 53 million and W 18 million, respectively. Gross unrealized losses of W 73 million, W 1,415 million and W 446 million at December 31, 2008, 2009 and 2010 for which impairment has not been recognized, have been in a continuous unrealized loss position for less than twelve months.

r. Determination of Acquisition Cost of Equity Interest in Subsidiary

Under Korean GAAP, the acquisition cost is determined at the closing market price of the parent company’s common stock when the common stock is actually issued. Under U.S. GAAP, through year ended December 31, 2008, when a parent company acquires an equity interest in a subsidiary in exchange for newly issued common stock of the parent company, the acquisition cost of the equity interest in a subsidiary is determined at the market price of the parent company’s common stock for a reasonable period before and after the date the terms of the acquisition are agreed to and announced. In addition, there are certain other differences in the methods of allocating cost to assets acquired. Due to such differences, for U.S. GAAP purposes, the shareholders’ equity as of December 31, 2008, 2009 and 2010 increased by W 28,358 million when compared to that under Korean GAAP. Beginning the year ended December 31, 2009, due to new accounting guidance related to business combination issued, such GAAP differences no longer exist.

Under Korean GAAP, in a business combination between a publicly traded company and a privately held company where an acquirer is the privately held company and the acquirer issues its own equity shares to the acquiree’s stockholders as purchase proceeds, the cost of the acquired entity is determined based on the fair value of the acquirer’s net assets. Under U.S. GAAP, it is appropriate to use the market value of a publicly traded company to value the acquisition when the acquiree is a publicly traded company and the acquirer is a privately held company. Due to such differences, for U.S. GAAP purposes, the shareholders’ equity as of December 31, 2008, 2009 and 2010 increased by W 102,433 million in each period, when compared to that under Korean GAAP.

The combined effect of the differences discussed above, from Korean GAAP to U.S. GAAP to the shareholder’s equity as of December 31, 2008, 2009 and 2010 is an increase of W 130,791 million as of each period end.

s. Additional Equity Investment in Subsidiaries

Historically, there has been a difference in accounting for additional equity investment in subsidiaries between Korean GAAP and U.S. GAAP. The difference was due to the difference in the accounting treatment guidance itself and the difference in scope of consolidation — an entity that may be consolidated for Korean GAAP purposes may not necessarily be consolidated for U.S. GAAP purposes and vice versa.

Under Korean GAAP, when additional interest is acquired after acquiring a controlling interest in a subsidiary, the differences between the Company’s acquisition cost of the additional interest and the corresponding carrying amount of the acquired additional interest in a subsidiary is presented as an adjustment to capital surplus. Under U.S. GAAP, through year ended December 31, 2008, the cost of an additional interest was allocated based on the fair value of net assets acquired at the time the additional interest was acquired, with the excess allocated to goodwill. However, beginning the year ended December 31, 2009, due to the revised accounting guidance for U.S. GAAP related to business combination and non-controlling interest which was prospectively applied, the accounting treatment for additional interest acquired after acquiring a controlling interest in a subsidiary became the same under both GAAPs

As a result, due to the historical differences in GAAP, additional shareholders’ equity of W 1,012,861 million, W 1,013,438 million and W 1,013,438 million, as of December 31, 2008, 2009 and 2010 were adjusted for U.S. GAAP purposes compared to Korean GAAP. While due to the difference in scope of consolidation, additional

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shareholders’ equity of W 40,026 million, W 2,952 million and W 31,715 million, as of December 31, 2008, 2009 and 2010 was recognized for U.S. GAAP purposes, compared to Korean GAAP. In total additional shareholders’ equity of W 1,052,887 million, W 1,016,390 million and W 1,045,153 million, as of December 31, 2008, 2009 and 2010 under U.S. GAAP is recognized. Going forward, except for a difference due to difference in scope of consolidation, there will no longer exist a GAAP difference related to accounting for additional equity investment in subsidiaries.

t. Loans Receivable for Stock Issued to Employee

Korean GAAP allows for recording notes receivables for capital stock issued to employees as an asset, while U.S. GAAP generally requires such receivables to be reported as a reduction of stockholders’ equity. Due to such differences, for U.S. GAAP purposes, the shareholders’ equity as of December 31, 2008, 2009 and 2010 decreased by W 60,908 million, W 57,615 million and W 43,052 million, respectively, when compared to that under Korean GAAP.

u. Deferred Charges

Korean GAAP requires that bond issuance costs are deducted bonds proceeds. Under U.S. GAAP, bond issuance costs are capitalized as deferred assets and amortized over the redemption period of the related obligation.

v. Handset Subsidies to Long-time Mobile Subscribers

Under Korean GAAP, handset subsidies are recorded as operating expenses. Under US GAAP, such amounts are recorded as reduction of revenue.

w. Comprehensive Income

Under Korean GAAP, until the year ended December 31, 2006, there was no requirement to present comprehensive income. Effective January 1, 2007, revised guidance requires the disclosure of comprehensive income and its components in consolidated financial statements. However, the format of such disclosure under Korean GAAP differs from that under U.S. GAAP. Under U.S. GAAP, comprehensive income includes all changes in the shareholders’ equity during a period except those resulting from investments by, or distributions to owners,

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including certain items not included in the current results of operations. Comprehensive income under U.S. GAAP for the years ended December 31, 2008, 2009 and 2010 is as follows (in millions of Korean won):

Net income	2008 — W	951,737	W	1,356,682	W	1,396,621
Other comprehensive income:
Available-for-sale securities
Unrealized gain (loss) on investment securities		(1,080,978	)	852,171		(209,845	)
Less impact of realized losses (gains)		1,730		(297,536	)	(51,438	)
Tax effect		292,840		(141,481	)	55,875
Net change from available-for-sale securities		(786,408	)	413,154		(205,408	)
Foreign-based operations’ translation adjustments		67,057		(49,899	)	(6,246	)
Total other comprehensive income		(719,351	)	363,255		(211,654	)
Comprehensive income		232,386		1,719,937		1,184,967
Less comprehensive loss attributable to non controlling interest		118,879		125,760		129,510
Comprehensive income attributable to the Company	W	351,265	W	1,845,697	W	1,314,477

x. Discontinued Operation

As disclosed on Note 2.ab “Discontinued Operation”, during the year ended December 31, 2008, the Company disposed of its investment in Helio LLC which was incorporated to provide cellular telephone communication service in the U.S. to Virgin Mobile USA, Inc. Under Korean GAAP, when a subsidiary is disposed of during the year, the results of its operations are treated as a discontinued operation and as such the results of operations and cash flows of Helio LLC were presented as a discontinued operation during the years ended December 31, 2008. For the year ended December 31, 2008, as the Company had significant influence over Virgin Mobile USA, Inc., it accounted for it as an equity method investment.

Under U.S. GAAP, as the Company had significant continuing involvement in legacy Helio LLC operations, now under Virgin Mobile USA, the results of operations and cash flows of Helio LLC was as a continuing operation based on relevant discontinued operation accounting literature; while the Company considered its investment in Virgin Mobile USA., Inc., as an equity method investment.

During the year ended December 31, 2009, the Company exchanged its 16.6% equity interest in Virgin Mobile Inc. for 0.6% equity interest in Sprint Nextel due to the merger between Sprint Nextel and Virgin Mobile Inc.. As a result, the Company no longer had significant continuing involvement in the legacy Helio LLC’s operation under Sprint Nextel nor significant influence over Sprint Nextel.

Under U.S. GAAP, based on relevant discontinued operation accounting literature, the results of operations and cash flows of Helio LLC for the year ended December 31, 2009 is still recognized as part of continuing operations. In addition, under both GAAPs, the Company recognizes its investment in Sprint Nextel as an available-for-sale equity investment. As such, a reconciling item between the two GAAPs no longer exists.

As disclosed on Note 2.ab “Discontinued Operation”, during the year ended December 31, 2010, the Company disposed of its investment in IHQ Inc. IHQ was a consolidating subsidiary under Korean GAAP, however, an equity method investee for U.S GAAP purposes. As a result, the results of its operations which was treated as a discontinued operation under Korean GAAP has been reversed and accounted for as equity loss for U. S GAAP purposes.

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Changes in shareholders’ equity based on U.S. GAAP for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

	Year Ended December 31,
	2008		2009		2010
Balance, beginning of the year	W	12,897,647	W	12,562,019	W	14,260,772
Net income for the year		951,737		1,356,682		1,396,621
Dividends		(682,504	)	(681,548	)	(680,043	)
Unrealized gain (loss) on valuation of securities, net of tax		(786,408	)	413,154		(205,408	)
Equity in capital surplus, retained earnings and other
comprehensive income of affiliates (note a)		(77,879	)	(168,712	)	100,492
Conversion of convertible bonds payable		(6,277	)	—		—
Treasury stock transactions		(14,137	)	(30,602	)	(210,355	)
Foreign-based operations’ translation adjustments		67,057		(49,899	)	(6,246	)
Decrease (Increase) in loans receivable for stock issued to
employees		(26,092	)	3,293		14,563
Change in non-controlling interest		238,875		856,385		(97,663	)
Balance, end of the year	W	12,562,019	W	14,260,772		14,572,733

(note a) This line item consists of the adjustments to the carrying amount of equity method investments based on the Company’s proportionate equity pickup in affiliates using the equity method of accounting, which are directly adjusted to stockholders’ equity of affiliates, such as unrealized gains or losses on valuation of available-for-sale securities, foreign-based operations’ translation adjustments in affiliates and stock transactions by affiliates.

A reconciliation of the significant balance sheet accounts except for the above listed shareholders’ equity items to the amounts determined under U.S. GAAP as of December 31, 2008, 2009 and 2010 is as follows (in millions of Korean won):

	December 31,
	2008		2009		2010
Current assets:
As reported	W	5,422,447	W	6,370,631	W	6,972,989
U.S. GAAP adjustments:
— Deferred charges		406		5,174		2,201
— Investment securities without readily determinable
fair value		—		—		(3,986	)
— Loans receivable for stock issued to employees		(1,252	)	(1,153	)	(10,551	)
— Consolidation of variable interest entity		(55,967	)	—		—
— Scope of consolidation		(836,324	)	(91,039	)	(132,496	)
— Reclassification of SK C&C investment		—		450,000		450,000
— Business combination		—		4,340		—
— Asset Securitization Transactions		—		505,839		—

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	December 31,
	2008		2009		2010
— FIN 48 effect		—		260		3
— Tax effect of the reconciling items		53,055		(111,279	)	(103,625	)
Current assets based on U.S. GAAP		4,582,365		7,132,773		7,174,535
Non-current assets:
As reported		17,051,224		16,835,625		15,678,716
U.S. GAAP adjustments:
— Deferred charges		11,423		25,646		19,705
— Capital lease		(576	)	(576	)	(576	)
— Investment securities without readily determinable
fair value		—		8,833		8,986
— Determination of acquisition cost of equity interest
in subsidiary		130,791		130,791		130,791
— Additional equity investment in subsidiaries		1,110,645		1,016,966		1,055,510
— Reversal of amortization of goodwill		931,509		1,195,557		1,281,530
— Investment in preferred stock		—		—		6,359
— Goodwill impairment		(118,570	)	(118,570	)	(118,570	)
— Capitalization of foreign exchange losses and
interest expense related to tangible assets		62,098		69,714		66,215
Capitalization of interest expenses related to purchase of
intangible assets		(42,572	)	(37,300	)	(32,028	)
— Nonrefundable activation fees		8,099		9,077		9,129
— Loans receivable for stock issued to employees		(59,656	)	(56,462	)	(32,501	)
— Convertible bonds payable		281		281		—
— Currency and interest rate swap		(51,121	)	9,821		(4,620	)
— Provision for credit loss		—		—		15,964
— Consolidation of variable interest entity		76,022		—		—
— Scope of consolidation		(2,386,994	)	(209,942	)	26,452
— Reclassification of SK C&C investment		(7,114	)	(450,000	)	(450,000	)
— Asset Securitization Transactions		—		(90,980	)	—
— Business combination		—		132,398		277,352
— Retroactive application of equity method of
accounting on SKBB investment		(62,382	)	—		—
— FIN 48 effect		(1,621	)	382		352
— Tax effect of the reconciling items		5,332		184,276		185,414
Non-current assets based on U.S. GAAP		16,656,818		18,655,537		18,124,180
Total assets based on U.S. GAAP	W	21,239,183	W	25,788,310	W	25,298,715

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	December 31,
	2008		2009		2010
Current liabilities:
As reported	W	4,628,821	W	4,894,936	W	5,915,300
U.S. GAAP adjustments:
— Deferred charges		406		5,174		198
— Considerations for conversion right		26,577		—		9
— Nonrefundable activation fees		218,284		215,692		190,891
— Consolidation of variable interest entity		52,031		—		—
— Asset Securitization Transactions		—		399,370		—
— Business combination		—		4,340		2,003
— Scope of consolidation		(1,081,778	)	(202,318	)	(12,416	)
Current liabilities based on U.S. GAAP		3,844,341		5,317,194		6,095,985
Non-current liabilities:
As reported		6,020,410		5,966,695		4,257,755
U.S. GAAP adjustments:
— Deferred charges		11,423		25,646		15,178
— Considerations for conversion right		16,753		32,740		68,230
— Nonrefundable activation fees		188,173		151,084		165,958
— Currency and interest rate swap		(5,618	)	(554	)	(119	)
— Consolidation of variable interest entity		698		—		—
— Scope of consolidation		(1,373,619	)	(9,488	)	(444	)
— Business combination		—		38,162		(3,553	)
— FIN 48 effect		9,049		8,325		61,907
— Tax effect of the reconciling items		(34,446	)	(2,266	)	65,085
Non-current liabilities based on U.S. GAAP		4,832,823		6,210,344		4,629,997
Total liabilities based on U.S. GAAP	W	8,677,164	W	11,527,538	W	10,725,982

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The following table reconciles cash flows from operating, investing and financing activities for the years ended December 31, 2008, 2009 and 2010 and cash and cash equivalents at December 31, 2008, 2009 and 2010 under Korean GAAP, as reported in the consolidated financial statements to cash flows from operating, investing and financing activities for the years ended December 31, 2008, 2009 and 2010 and cash and cash equivalents at December 31, 2008, 2009 and 2010 under U.S. GAAP (in millions of Korean won):

Cash flows from operating activities based on Korean GAAP	2008 — W	3,293,018		2009 — W	2,932,633		2010 — W	4,021,021
Adjustments:
Trading security cash flows		(40	)		(14	)		(168	)
Consolidation of variable interest entity		7,010			10,402			—
Scope of consolidation		(389,761	)		(62,328	)		(41,249	)
Pre-acquisition cash flows of subsidiaries		—			183,090			—
Discontinued operation		(213,899	)		—			—
Cash flows from operating activities based on U.S. GAAP	W	2,696,328		W	3,063,783		W	3,979,604
Cash flows from investing activities based on Korean GAAP	W	(3,876,959	)	W	(1,826,005	)	W	(2,358,678	)
Adjustments:
Trading security cash flows		40			14			168
Consolidation of variable interest entity		(11,006	)		(173	)		—
Scope of consolidation		7,001			(223,601	)		(48,895	)
Pre-acquisition cash flows of subsidiaries		—			(74,884	)		—
Discontinued operation		(51,631	)		—			—
Cash flows from investing activities based on U.S. GAAP	W	(3,932,555	)	W	(2,124,649	)	W	(2,407,405	)
Cash flows from financing activities based on Korean GAAP	W	866,822		W	(1,206,991	)	W	(1,818,288	)
Adjustments:
Consolidation of variable interest entity		1,126			(11,802	)		—
Scope of consolidation		241,743			290,467			32,368
Pre-acquisition cash flows of subsidiaries		—			88,340			—
Discontinued Operation		9,015			—			—
Cash flows from financing activities based on U.S. GAAP	W	1,118,706		W	(839,986	)	W	(1,785,920	)
The effect of exchange rate changes on cash and cash equivalents
held in foreign currencies based on Korean GAAP	W	37,371		W	(7,405	)	W	(5,222	)
Adjustments:
Consolidation of variable interest entity		938			(10	)		—
Scope of consolidation		(4,129	)		(1,015	)		807
Discontinued Operation		—			—			—
The effect of exchange rate changes on cash and cash equivalents
held in foreign currencies based on U.S. GAAP	W	34,180		W	(8,430	)	W	(4,415	)

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| Net increase (decrease) in cash and cash equivalents due to
changes in consolidated subsidiaries based on Korean GAAP | 2008 — W | 36,413 | | 2009 — W | 46,258 | | 2010 — W | (18,242 | ) |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Adjustments: | | | | | | | | | |
| Consolidation of variable interest entity | | — | | | (427 | ) | | — | |
| Scope of consolidation | | (77,346 | ) | | 253,307 | | | (20,359 | ) |
| Discontinued operation | | — | | | — | | | — | |
| Net increase (decrease) in cash and cash equivalents due to
changes in consolidated subsidiaries based on U.S. GAAP | W | (40,933 | ) | W | 299,138 | | W | (38,601 | ) |
| Pre-acquisition cash flows of subsidiaries based on
Korean GAAP | W | 17,250 | | W | — | | W | (23,406 | ) |
| Adjustments: | | | | | | | | | |
| Scope of consolidation | | (17,250 | ) | | — | | | 23,406 | |
| Pre-acquisition cash flows of subsidiaries | | — | | | (196,546 | ) | | — | |
| Discontinued operation | | — | | | — | | | — | |
| Pre-acquisition cash flows of subsidiaries based on
U.S. GAAP | W | — | | W | (196,546 | ) | W | — | |
| Increases in cash and cash equivalents due to merger based on
Korea GAAP | W | — | | W | — | | W | — | |
| Adjustments | | — | | | — | | | 10,367 | |
| Increase in cash and cash equivalents due to merger based on
U.S. GAAP | W | — | | W | — | | W | 10,367 | |
| Cash flows from discontinued operation based on Korean GAAP | W | (248,437 | ) | W | 3,669 | | W | 27,398 | |
| Adjustments: | | | | | | | | | |
| Scope of consolidation | | (71 | ) | | (1,943 | ) | | (18,202 | ) |
| Discontinued operation | | 256,515 | | | — | | | — | |
| Cash flows from discontinued operation based on U.S. GAAP | W | 8,007 | | W | 2,026 | | W | 9,196 | |
| Cash and cash equivalents at beginning of the year based on
Korean GAAP | W | 885,989 | | W | 1,011,467 | | W | 953,926 | |
| Adjustment: | | | | | | | | | |
| Consolidation of variable interest entity | | 3,942 | | | 2,010 | | | — | |
| Scope of consolidation | | (66,312 | ) | | (306,125 | ) | | (51,238 | ) |
| Cash and cash equivalents at beginning of the year based on
U.S. GAAP | W | 823,619 | | W | 707,352 | | W | 902,688 | |
| Cash and cash equivalents at end of the year based on
Korean GAAP | W | 1,011,467 | | W | 953,926 | | W | 778,509 | |
| Adjustments: | | | | | | | | | |
| Consolidation of variable interest entity | | 2,010 | | | — | | | — | |
| Scope of consolidation | | (306,125 | ) | | (51,238 | ) | | (112,995 | ) |
| Cash and cash equivalents at end of the year based on
U.S GAAP | W | 707,352 | | W | 902,688 | | W | 665,514 | |

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Cash paid for interest (net of amounts capitalized)	2008 — W	243,319	2009 — W	339,298	360,249
Cash paid for income taxes	W	422,506	W	557,005	660,316

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a. Income Taxes

Income tax expense for continuing operation under U.S. GAAP for the years ended December 31, 2008, 2009 and 2010 is as follows (in millions of Korean won):

	Year Ended December 31,
	2008		2009		2010
Currently payable	W	494,163	W	610,561	W	525,488
Deferred		(332,034	)	(127,409	)	(136,249	)
	W	162,129	W	483,152	W	389,239

The difference between the actual income tax expense and the tax expense computed by applying the statutory Korean corporate income tax rates to income before taxes for the years ended December 31, 2008, 2009 and 2010 is attributable to the following (in millions of Korean won):

	Year Ended December 31,
	2008		2009		2010
Income from continuing operation before income taxes and
appropriate item	W	1,196,266	W	1,850,028	W	1,790,574
Equity in earnings (loss) of unconsolidated business		(81,215	)	(20,972	)	(5,602	)
		1,115,051		1,829,056		1,784,972
Income taxes at statutory income tax rate of 25% in 2008 and 22%
in 2009 and 2010		278,763		402,392		392,694
Resident surtax payable		27,876		40,239		39,269
Tax credit for investments, technology, human resource
development and others		(98,551	)	(98,242	)	(37,074	)
Special surtax for agriculture and fishery industries and other		23,296		16,521		6,720
Additional income tax (tax refund) for prior periods		(60,130	)	10,947		(7,508	)
Tax effect from statutory tax rate change		(58,672	)	(29,001	)	(2,763	)
Undistributed earnings (unrecognized deficit) of subsidiaries		110		(17,511	)	(211	)
Other permanent differences		13,157		(30,945	)	(14,228	)
Change in valuation allowance		36,280		188,752		12,340
Recorded income taxes	W	162,129	W	483,152	W	389,239
Effective tax rate		14.54	%	26.42	%	21.58	%

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The tax effects of temporary differences that resulted in deferred tax assets and liabilities at December 31, 2008, 2009 and 2010 computed under U.S. GAAP, and a description of the financial statement items that created these differences are as follows (in millions of Korean won):

	Year Ended December 31,
	2008			2009			2010
Current:
Allowance for doubtful accounts	W	14,530		W	42,693		W	41,832
Accrued interest income		(1,594	)		(980	)		(846	)
Provision for handset subsidy		—			128,785			160,625
Net operating loss carryforwards		1			61			78
Tax credit carryforwards		570			225			1
Accrued expenses and other		66,868			(76,358	)		(105,477	)
		80,375			94,426			96,213
Non-current:
Depreciation		(33,262	)		(15,599	)		7,570
Loss on impairment of investment securities		80,750			41,417			30,529
Equity in losses (earnings) of affiliates		(20,151	)		(178,156	)		(64,773	)
Unrecognized deficit (undistributed earnings) of subsidiaries		(59,122	)		112,136			46,458
Tax free reserve for research and manpower development		(80,707	)		(132,244	)		(80,761	)
Unrealized loss (gain) on valuation of long-term investment
securities (accumulated other comprehensive income)		(77,738	)		(164,542	)		(40,812	)
Property and equipment		—			(36,327	)		(26,600	)
Intangible assets		—			(27,405	)		(21,741	)
Tax credit carryforwards		1,066			531			357
Net operating loss carryforwards		—			83			2,370
Deferred charges and other		(55,013	)		72,465			51,482
		(244,177	)		(327,641	)		(95,921	)
Total deferred tax liabilities	W	(163,802	)	W	(233,215	)	W	292

Under U.S. GAAP, effective January 1, 2007, the Company adopted authoritative guidance on accounting for uncertainty in income taxes which requires the use of a two-step approach for recognizing and measuring tax benefits taken or expected to be taken in a tax return and disclosures regarding uncertainties in income tax positions. The first step is recognition: we determine whether it is more likely than not that a tax position will be sustained upon examination, including resolution of any related appeals or litigation processes, based on the technical merits of the position. In evaluating whether a tax position has met the more-likely-than-not recognition threshold, we presume that the position will be examined by the appropriate taxing authority that has full knowledge of all relevant information. The second step is measurement: a tax position that meets the more-likely-than-not recognition threshold is measured to determine the amount of benefit to recognize in the financial statements. The tax position is measured at the largest amount of benefit that is greater than 50 percent likely of being realized upon ultimate settlement. Differences between tax positions taken in a tax return and amounts recognized in the financial statements will generally result in one or more of the following: an increase in a liability for income taxes

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payable, a reduction of an income tax refund receivable, a reduction in a deferred tax asset, or an increase in a deferred tax liability.

A reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31, 2008, 2009 and 2010 is as follows (in millions of Korean won):

Beginning of period	2008 — W	9,989	W	9,305	W	5,204
Gross increases for tax position of prior years		186		1,578		2
Gross decreases for tax position of prior years		(2,629	)	(1,307	)	(525	)
Lapses of statues of limitations		(474	)	(4,503	)	(506	)
Gross increases for tax position of current year		2,233		131		37,341
Gross decreases for tax position of current year		—		—		(282	)
Ending of period	W	9,305	W	5,204	W	41,234

Total unrecognized tax benefits at December 31, 2008, 2009 and 2010 are W 7,375 million, W 4,561 million and W 40,897 million, respectively, that, if recognized, would favorably affect the effective income tax rate. The remaining unrecognized tax benefits relate to temporary items that would not affect the effective income tax rate.

The Company recognizes any interest and penalties accrued related to unrecognized tax benefits in income tax expense. The Company accrued approximately W 3,019 million, W 3,121 million and W 20,673 of interest and penalties at December 31, 2008, 2009 and 2010, respectively.

It is expected that the amount of unrecognized tax benefits will also change for other reasons in the next 12 months; however, we do not expect that change to have a significant impact on our financial position or results of operations.

The Company files income tax returns in the Republic of Korea jurisdiction and also files income tax returns in a number of foreign jurisdictions. However, historically the Company’s foreign income tax activity has been immaterial. Through end of 2009, the National Tax Service, or NTS, has effectively completed the examination of our returns in the Republic of Korea related to years prior to 2004.

In major foreign jurisdictions, the 2005 through 2010 tax years generally remain subject to examination by their respective tax authorities.

In November 2010, NTS performed a tax examination for the Company’s open tax years from 2005 through 2009, in the Korean jurisdiction. NTS completed its examination during May 2011 and its preliminary assessment was issued in June 2011. As part of the Company’s year-end uncertain tax position assessment at December 31, 2010, the Company recognized tax positions for likely NTS assessments, that are considered to be greater than 50 percent of being realized upon ultimate NTS assessment, and recorded such amount. There is no significant difference between the amount recognized by the Company and the NTS’ preliminary assessment. And, in Korean jurisdiction, 2010 tax year remains open to examination.

b. Fair Value of Financial Instruments

The following methods and assumptions were used to estimate the fair value of each class of financial instruments under U.S. GAAP as of December 31, 2008, 2009 and 2010 for which it is practicable to estimate that value:

Cash and Cash Equivalents, Accounts Receivable (trade and other), Short-term Loans, Accounts Payable and Short-term Borrowings

The carrying amount approximates fair value because of the short maturity of those instruments.

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Trading Securities and Long-term Investment Securities

For investments in non-listed companies’ stock, a reasonable estimate of fair value could not be made without incurring excessive costs. Additional information pertinent to these investments is provided in Note 4. The fair value of investments in listed companies’ stock, public bonds, and other marketable securities are estimated based on quoted market prices for those or similar investments.

Long-term Bank Deposits

The carrying amount approximates fair value as such long-term bank deposits bear interest rates currently available for similar deposits.

Long-term Loans

The fair value of long-term loans is estimated by discounting the future cash flows using the current interest rate of time deposits with similar maturities.

Bonds Payable, Bonds with Stock Warrant, Convertible Bonds, Long-term Borrowings, Long-term Payable — Other and Obligation under Capital Leases

The fair value of these liabilities is estimated based on the quoted market prices for the same or similar issues or on the current interest rates offered for debt of the same remaining maturities.

Long-term Accounts Receivable (trade and other)

The fair value of long-term accounts receivables is estimated by discounting the future cash flows using the current interest rate applied to debtor.

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The following summarizes the carrying amounts and fair values of financial instruments as of December 31, 2008, 2009 and 2010 (in millions of Korean won)

	2008				2009				2010
	Carrying				Carrying				Carrying
	Amount		Fair		Amount		Fair		Amount		Fair
	(note a)		Value		(note a)		Value		(note a)		Value
Financial assets:
Cash and cash equivalents and short-term financial instruments	W	914,228	W	914,228	W	1,371,150	W	1,371,150	W	1,232,666	W	1,232,666
Trading securities		367,002		367,002		370,126		370,126		200,000		200,000
Accounts receivable (trade and other)		2,893,283		2,893,283		4,441,094		4,441,094		4,483,658		4,483,658
Short-term loans		106,013		106,013		77,360		77,360		84,767		84,767
Investment securities:
Listed equity and debts		2,356,039		2,356,039		2,175,344		2,175,344		1,441,369		1,441,369
Non-listed equity and debts		75,028		N/A		282,189		N/A		562,760		N/A
Derivative instruments assets		318,373		318,373		303,073		303,073		197,219		197,219
Long-term bank deposits		75		75		6,556		6,556		117		117
Long-term accounts receivable (trade and other)		617,603		617,603		761,735		761,735		549,524		549,524
Long-term loans		85,975		64,481		29,746		29,336		57,203		56,667
	W	7,733,619			W	9,818,373			W	8,809,283
Financial liabilities:
Accounts payable	W	1,107,202	W	1,107,202	W	1,467,399	W	1,467,399	W	1,629,414	W	1,629,414
Short-term borrowings		180,827		180,827		1,020,399		1,020,399		523,710		523,710
Derivative instruments liabilities		242,186		242,186		130,672		130,672		138,499		138,499
Bonds payable, long-term borrowings, convertible bonds long-term
payables — other and obligation under finance leases,
including current portion		4,943,630		4,855,897		6,044,979		6,106,960		5,497,229		5,897,578
	W	6,473,845			W	8,663,449			W	7,788,852

(note a) These carrying amounts represent the amounts determined under U.S. GAAP.

Fair value hierarchy

On January 1, 2008, the Company adopted the provisions related to fair value measurements, to recognize all financial and nonfinancial assets and liabilities at fair value in the consolidated financial statements on a recurring basis. The adoption of such accounting guidance did not change our previous accounting for financial assets and liabilities. The provisions will be applied to nonfinancial assets and liabilities that are recognized at fair value in the consolidated financial statements on a nonrecurring basis beginning January 1, 2009. Upon application of the provision on January 1, 2009, the Company has provided additional disclosures regarding its nonrecurring fair value

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measurements, including its annual impairment review of goodwill and intangible assets. Refer to Note 32 (b) below for such disclosures made by the Company.

The fair value measurement guidance defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The guidance also establishes a three-tier fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions.

The following fair value hierarchy tables present information regarding our assets and liabilities measured at fair value on a recurring basis as of December 31, 2008, 2009 and 2010 (in millions of Korean won):

	December, 31, — 2008		Level 1		Level 2		Level 3
Assets:
Trading securities	W	367,002	W	—	W	367,002	W	—
Available for sale securities:
Equity securities		2,350,783		2,350,783		—		—
Debt securities		5,144		—		5,144		—
Held-to-maturity securities		112		—		112		—
Derivatives:
Currency swap		318,373		—		318,373		—
	W	3,041,414	W	2,350,783	W	690,631	W	—
Liabilities:
Derivatives:
Currency swap	W	210,468	W	—	W	210,468	W	—
Interest rate swap		31,718		—		31,718		—
	W	242,186	W	—		242,186	W	—

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	December, 31, — 2009		Level 1		Level 2		Level 3
Assets:
Trading securities	W	370,126	W	—	W	370,126	W	—
Available for sale securities:
Equity securities		1,820,458		1,820,458		—		—
Debt securities		353,880		—		353,880		—
Held-to-maturity securities		1,006		—		1,006		—
Derivatives:
Currency swap		303,073		—		303,073		—
	W	2,848,543	W	1,820,458	W	1,028,085	W	—
Liabilities:
Derivatives:
Currency swap	W	53,032	W	—	W	53,032	W	—
Interest rate swap		17,228		—		17,228		—
Conversion option		60,412		—		60,412		—
	W	130,672	W	—	W	130,672	W	—

	December, 31, — 2010		Level 1		Level 2		Level 3
Assets:
Trading securities	W	200,000	W	—	W	200,000	W	—
Available for sale securities:
Equity securities		1,409,109		1,409,109		—		—
Debt securities		32,260		—		32,260		—
Held-to-maturity securities		—		—		—		—
Derivatives:
Currency swap		197,219		—		197,219		—
	W	1,838,588	W	1,409,109	W	429,479	W	—
Liabilities:
Derivatives:
Currency swap	W	17,501	W	—	W	17,501	W	—
Interest rate swap		12,534		—		12,534		—
Conversion option		108,464		—		108,464		—
	W	138,499	W	—	W	138,499	W	—

The following methods and assumptions were used to estimate the fair value of each class of financial instrument:

Securities

The Company classifies its securities within Level 1 of the valuation hierarchy where quoted prices are available in an active market. Level 1 securities include exchange-traded equities. The Company generally

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classifies its securities within Level 2 of the valuation hierarchy where quoted market prices are not available. If quoted market prices are not available, the Company determined the fair values of its securities using pricing models, quoted prices of securities with similar characteristics or discounted cash flow models. These models are primarily industry-standard models that consider various assumptions, including time value and yield curve as well as other relevant economic measures.

Derivatives

The majority of the Company’s derivatives are valued using internal models that use readily observable marketing inputs, such as time value, forward interest rates, volatility factors, and current and forward market prices for foreign currency exchange rates. The Company generally classifies these instruments within Level 2 of the valuation hierarchy. Such derivatives include interest rate swap, cross currency swaps and foreign currency derivatives.

The accounting guidance requires that the valuation of derivative liabilities must take into account the Company’s own non-performance risk. Effective January 1, 2008, the Company updated its derivative valuation methodology to consider its own non-performance risk and counterparty nonperformance risk as observed through the credit default swap market and based on prices of recent trades.

c. Accrued Severance Indemnities

The Company and certain subsidiaries expect to pay the following future benefits for the next 10 years to their employees upon their normal retirement age as follows (in millions of Korean won):

Year Ending December 31, — 2011	W	669
2012		625
2013		845
2014		980
2015		2,682
2016 — 2020		57,286
Total	W	63,087

The above amounts were determined based on the employees’ current salary rates and the number of service years that will be accumulated upon their retirement date. These amounts do not include amounts that might be paid to employees that will cease working with the Company before their normal retirement age.

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d. Condensed Consolidated Income Statements under U.S. GAAP

Condensed consolidated income statements under U.S.GAAP for the years ended December 31, 2008, 2009 and 2010 are as follows (in millions of Korean won):

	2008
Operating revenue:
Wireless services	W	9,553,556	W	9,431,035	W	9,571,524
Interconnection		1,149,196		1,179,298		1,243,689
Digital handset sales		16,425		212,802		456,844
Fixed-line service		—		842,215		1,766,572
Other		413,232		954,591		1,135,217
Total operating revenue		11,132,409		12,619,941		14,173,846
Total operating expenses		(9,379,988	)	(10,745,536	)	(12,359,423	)
Operating income		1,752,421		1,874,405		1,814,423
Other income (expenses), net		(556,678	)	(23,917	)	(23,849	)
Income from continuing operation before income taxes and
appropriate item below		1,196,743		1,850,488		1,790,574
Provision for income taxes from continuing operation		(162,129	)	(483,152	)	(389,239	)
Equity in earnings (loss) of unconsolidated Businesses		(81,215	)	(20,972	)	(5,602	)
Income(loss) from discontinued operation, net of tax		(1,662	)	10,318		888
Net income	W	951,737	W	1,356,682	W	1,396,621
Add non controlling interests in losses of consolidated
subsidiaries		121,129		123,044		128,470
Net income attributable to the Company	W	1,072,866	W	1,479,726	W	1,525,091

e. Segment

The Company acquired an additional 7.2% of the outstanding shares of SK Broadband Co., Ltd., a fixed-line telephone service provider, which began being consolidated under U.S. GAAP during the year ended December 31, 2009. (Refer to Note 32 (M) “ Achieved-in-stages ”) Beginning the year ended December 31, 2008, the Company has had two operation segments, which is the cellular telephone communication service segment and fixed-line telecommunication service segment. For the business of each segment and detail information refer to Note 30.

f. Transition to IFRS in 2011

As of January 1, 2011, the Company began preparing its financial statements in accordance with International Financial Reporting Standards (“IFRS”) as adopted for use in the Republic of Korea and IFRS as issued by the International Accounting Standards Board (“IASB”). The Company’s transition date to IFRSs is January 1, 2010.

Going forward, the Company will discontinue to report under Korean GAAP and will report under IFRS as issued by the IASB. As such, the Company’s 2010 consolidated financial statements under IFRSs may be materially different than the accompanying 2010 consolidated financial statements under Korean GAAP.

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g. Recent Changes in U.S. GAAP

In October 2009, guidance on Multiple-Deliverable Revenue Arrangements, which addresses how revenues should be allocated among all products and services included in our bundled sales arrangements, was newly issued. It establishes a selling price hierarchy for determining the selling price of each product or service, with vendor-specific objective evidence at the highest level, third-party evidence at the intermediate level, and a best estimate at the lowest level. It eliminates the residual method as an acceptable allocation method, and requires the use of the relative selling price method as the basis for allocation. It also significantly expands the disclosure requirements for such arrangements, including, potentially, certain qualitative disclosures. The requirements effective for the beginning of January 1, 2011 are not expected to have a material effect on our consolidated financial statements.

In January 2010, accounting guidance on Fair Value Measurements and Disclosures — Improving Disclosures about Fair Value Measurements, which required new disclosures and explanations for transfers of financial assets and liabilities between levels in the fair value hierarchy was revised. The new guidance clarifies that fair value measurement disclosures are required for each class of financial asset and liability, which may be a subset of a caption in the consolidated balance sheets, and those disclosures should include a discussion of inputs and valuation techniques. For financial assets and liabilities subject to lowest-level measurements (Level 3), the guidance further requires that we separately present purchases, sales, issuances, and settlements instead of netting these changes.

In July 2010, the accounting guidance for Disclosures about the Credit Quality of Financing Receivables and the Allowance for Credit Losses were revised. As a result of these amendments, an entity is required to disaggregate by portfolio segment or class certain existing disclosures and provide certain new disclosures about its financing receivables and related allowance for credit losses. The new disclosures as of the end of the reporting period are effective for the fiscal year ended December 31, 2010, while the disclosures about activity that occurs during a reporting period are effective for the first fiscal quarter of 2011. The disclosure requirements effective for the fiscal year ended December 31, 2010 did not have a material effect on our consolidated financial statements. The requirements effective for the first fiscal quarter of 2011 are not expected to have a material effect on our consolidated financial statements.

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SIGNATURES

The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized the undersigned to sign this annual report on its behalf.

SK TELECOM CO., LTD. (Registrant)

/s/ Sung Min Ha

Name: Sung Min Ha

Title: President, Co-Chief Executive Officer &

Representative Director

Date: June 30, 2011

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