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UNITED MICROELECTRONICS CORP Regulatory Filings 2007

Sep 19, 2007

30356_ffr_2007-09-19_8a58ac65-8671-40e2-bc1b-3b02be835e84.zip

Regulatory Filings

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6-K 1 d6k.htm FORM 6-K Form 6-K

1934 Act Registration No. 1-15128

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 OF

THE SECURITIES EXCHANGE ACT OF 1934

Dated September 19, 2007

United Microelectronics Corporation

(Translation of Registrant’s Name into English)

No. 3 Li Hsin Road II

Science Park

Hsinchu, Taiwan, R.O.C.

(Address of Principal Executive Office)

(Indicate by check mark whether the registrant files or will file annual reports under cover of form 20-F or Form 40-F.)

Form 20-F V Form 40-F

(Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.)

Yes No V

(If “Yes” is marked, indicated below the file number assigned to the registrant in connection with Rule 12g3-2(b): Not applicable )

www.umc.com

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

/s/ Chitung Liu
Chitung Liu
Chief Financial Officer

www.umc.com

Exhibit

Exhibit Description
99.1 United Microelectronics Corporation (and Subsidiaries) Financial Statements With Report of Independent Auditors for the Six-Month Periods Ended June 30, 2007 And 2006

www.umc.com

Exhibit 99.1

United Microelectronics Corporation (and Subsidiaries) Financial Statements With Report of Independent Auditors for the Six-Month Periods Ended June 30, 2007 And 2006

UNITED MICROELECTRONICS CORPORATION

FINANCIAL STATEMENTS

WITH REPORT OF INDEPENDENT AUDITORS

FOR THE SIX-MONTH PERIODS ENDED

JUNE 30, 2007 AND 2006

Address: No. 3 Li-Hsin Road II, Hsinchu Science Park, Hsinchu City, Taiwan, R.O.C.

Telephone: 886-3-578-2258

The reader is advised that these financial statements have been prepared originally in Chinese. In the event of a conflict between these financial statements and the original Chinese version or difference in interpretation between the two versions, the Chinese language financial statements shall prevail.

REPORT OF INDEPENDENT AUDITORS

English Translation of a Report Originally Issued in Chinese

To United Microelectronics Corporation

We have audited the accompanying balance sheets of United Microelectronics Corporation as of June 30, 2007 and 2006, and the related statements of income, statements of changes in stockholders’ equity, and cash flows for the six-month periods ended June 30, 2007 and 2006. 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. As described in Note 4(8) to the financial statements, certain long-term investments were accounted for under the equity method based on financial statements as of June 30, 2007 and 2006 of the investees, which were audited by other auditors. Our opinion insofar as it relates to the investment income amounting to NT$470 million and NT$499 million for the six-month periods ended June 30, 2007 and 2006, respectively, and the related long-term investment balances of NT$7,049 million and NT$5,706 million as of June 30, 2007 and 2006, respectively, is based solely on the reports of the other auditors.

We conducted our audits in accordance with auditing standards generally accepted in the Republic of China and “Guidelines for Certified Public Accountants’ Examination and Reports on Financial Statements”, which 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, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits and the reports of the other auditors provide a reasonable basis for our opinion.

In our opinion, based on our audits and the reports of other auditors, the financial statements referred to above present fairly, in all material respects, the financial position of United Microelectronics Corporation as of June 30, 2007 and 2006, and the results of its operations and its cash flows for the six-month periods ended June 30, 2007 and 2006, in conformity with the “Business Entity Accounting Law”, the “Regulation on Business Entity Accounting Handling”, the “Guidelines Governing the Preparation of Financial Reports by Securities Issuers” and accounting principles generally accepted in the Republic of China.

As described in Note 3 to the financial statements, effective from January 1, 2006, United Microelectronics Corporation has adopted the ROC Statement of Financial Accounting Standards No. 34, “Financial Instruments: Recognition and Measurement” and No. 36, “Financial Instruments: Disclosure and Presentation” to account for the financial instruments.

As described in Note 3 to the financial statements, effective from January 1, 2006, goodwill is no longer to be amortized.

We have also audited the consolidated financial statements of United Microelectronics Corporation as of and for the six-month periods ended June 30, 2007 and 2006, and have expressed an unqualified opinion with explanatory paragraph on such financial statements.

August 1, 2007

Taipei, Taiwan

Republic of China

Notice to Readers

The accompanying audited financial statements are intended only to present the financial position and results of operations and cash flows in accordance with accounting principles and practices generally accepted in the Republic of China and not those of any other jurisdictions. The standards, procedures and practices to audit such financial statements are those generally accepted and applied in the Republic of China.

1

English Translation of Financial Statements Originally Issued in Chinese

UNITED MICROELECTRONICS CORPORATION

BALANCE SHEETS

June 30, 2007 and 2006

(Expressed in Thousands of New Taiwan Dollars)

Notes As of June 30, — 2007 2006
Assets
Current assets
Cash and cash equivalents 2, 4(1) $ 77,057,682 $ 90,049,580
Financial assets at fair value through profit or loss, current 2, 3, 4(2) 7,797,358 1,506,063
Held-to-maturity financial assets, current 2, 3, 4(3) 200,000 779,456
Notes receivable 3,094 4,847
Notes receivable - related parties 5 44,134 68,788
Accounts receivable, net 2, 4(4) 7,200,069 5,356,211
Accounts receivable - related parties, net 2, 5 6,906,610 7,126,292
Other receivables 2 449,199 722,558
Inventories, net 2, 4(5) 10,911,414 10,383,292
Prepaid expenses 1,034,187 849,094
Deferred income tax assets, current 2, 4(20) 2,126,562 2,720,051
Total current assets 113,730,309 119,566,232
Funds and investments
Available-for-sale financial assets, noncurrent 2, 3, 4(6), 4(11) 46,727,005 37,864,803
Held-to-maturity financial assets, noncurrent 2, 3, 4(3) — 200,000
Financial assets measured at cost, noncurrent 2, 3, 4(7), 4(11) 2,321,538 2,265,728
Long-term investments accounted for under the equity method 2, 3, 4(8), 4(11) 41,329,192 33,261,799
Prepayment for long-term investments 247,712 —
Total funds and investments 90,625,447 73,592,330
Property, plant and equipment 2, 4(9), 7
Land 1,132,576 1,132,576
Buildings 17,006,507 16,249,112
Machinery and equipment 411,555,214 380,689,179
Transportation equipment 74,328 78,461
Furniture and fixtures 2,515,541 2,300,342
Total cost 432,284,166 400,449,670
Less : Accumulated depreciation (311,201,376 ) (274,361,684 )
Add : Construction in progress and prepayments 19,631,876 10,539,974
Property, plant and equipment, net 140,714,666 136,627,960
Intangible assets
Goodwill 2, 3 3,745,122 3,745,122
Technological know-how 2 — 299,877
Total intangible assets 3,745,122 4,044,999
Other assets
Deferred charges 2 1,391,518 1,627,918
Deferred income tax assets, noncurrent 2, 4(20) 3,420,348 4,414,737
Other assets - others 2, 4(10), 6 1,926,157 1,956,997
Total other assets 6,738,023 7,999,652
Total assets $ 355,553,567 $ 341,831,173
Liabilities and Stockholders’ Equity
Current liabilities
Financial liabilities at fair value through profit or loss, current 2, 3, 4(12) $ 423,226 $ 1,188,290
Accounts payable 4,957,912 4,733,091
Income tax payable 2 288,100 1,188,953
Accrued expenses 6,680,702 5,781,758
Cash dividends payable 4(18) 12,461,529 7,161,301
Payable on equipment 4,202,021 4,398,689
Other payables 4(18) 2,339,614 311,960
Current portion of long-term liabilities 2, 4(13) 23,022,656 10,312,904
Other current liabilities 544,346 1,888,116
Total current liabilities 54,920,106 36,965,062
Long-term liabilities
Bonds payable 2, 4(13) 7,494,762 30,279,246
Total long-term liabilities 7,494,762 30,279,246
Other liabilities
Accrued pension liabilities 2, 4(14) 3,128,223 3,044,682
Deposits-in 13,180 21,451
Deferred credits - intercompany profits 2 3,579 9,806
Other liabilities - others 2 448,439 551,252
Total other liabilities 3,593,421 3,627,191
Total liabilities 66,008,289 70,871,499
Capital 2, 4(15), 4(16), 4(18)
Common stock 191,442,517 188,452,341
Stock dividends for distribution — 2,248,771
Additional paid-in capital 2, 4(15)
Premiums 61,138,863 60,712,685
Treasury stock transactions 8,938 —
Change in equities of long-term investments 6,623,992 6,655,250
Retained earnings 4(15), 4(18)
Legal reserve 18,476,942 16,699,508
Special reserve 824,922 322,150
Unappropriated earnings 7,062,654 3,434,838
Adjusting items in stockholders’ equity 2, 4(6)
Cumulative translation adjustment (578,030 ) (855,518 )
Unrealized gain or loss on financial instruments 33,939,144 19,677,371
Treasury stock 2, 4(8), 4(15), 4(17) (29,394,664 ) (26,387,722 )
Total stockholders’ equity 289,545,278 270,959,674
Total liabilities and stockholders’ equity $ 355,553,567 $ 341,831,173

The accompanying notes are an integral part of the financial statements.

2

English Translation of Financial Statements Originally Issued in Chinese

UNITED MICROELECTRONICS CORPORATION

STATEMENTS OF INCOME

For the six-month periods ended June 30, 2007 and 2006

(Expressed in Thousands of New Taiwan Dollars, Except for Earnings per Share)

Notes For the six-month period ended June 30, — 2007 2006
Operating revenues 2, 5
Sales revenues $ 47,012,083 $ 49,078,075
Less: Sales returns and discounts (239,147 ) (456,096 )
Net sales 46,772,936 48,621,979
Other operating revenues 1,349,028 1,512,987
Net operating revenues 48,121,964 50,134,966
Operating costs 4(19)
Cost of goods sold (38,652,158 ) (40,738,614 )
Other operating costs (845,661 ) (999,065 )
Operating costs (39,497,819 ) (41,737,679 )
Gross profit 8,624,145 8,397,287
Unrealized intercompany profit 2 (96,448 ) (91,439 )
Realized intercompany profit 2 105,892 120,153
Gross profit-net 8,633,589 8,426,001
Operating expenses 2, 4(19)
Sales and marketing expenses (1,382,075 ) (1,373,023 )
General and administrative expenses (1,368,713 ) (1,207,715 )
Research and development expenses 2 (4,638,829 ) (4,130,707 )
Subtotal (7,389,617 ) (6,711,445 )
Operating income 1,243,972 1,714,556
Non-operating income
Interest revenue 690,166 709,934
Investment gain accounted for under the equity method, net 2, 4(8) 1,130,733 582,324
Dividend income 55,684 26,371
Gain on disposal of property, plant and equipment 2 80,034 93,923
Gain on disposal of investments 2 4,257,822 18,370,659
Exchange gain, net 2, 10 — 90,800
Gain on recovery of market value of inventories 2 58,259 —
Gain on valuation of financial liabilities 2 — 89,197
Other income 280,296 440,236
Subtotal 6,552,994 20,403,444
Non-operating expenses
Interest expense 4(9) (81,187 ) (397,415 )
Loss on disposal of property, plant and equipment 2 (62,722 ) (23,501 )
Exchange loss, net 2, 10 (29,734 ) —
Loss on decline in market value and obsolescence of inventories 2 — (401,003 )
Financial expenses (87,819 ) (104,842 )
Impairment loss 2, 4(11) (246,144 ) (21,807 )
Loss on valuation of financial assets 2 (70,893 ) (252,191 )
Loss on valuation of financial liabilities 2 (44,586 ) —
Other losses (29,296 ) (36,390 )
Subtotal (652,381 ) (1,237,149 )
Income from continuing operations before income tax 7,144,585 20,880,851
Income tax expense 2, 4(20) (774,917 ) (1,354,548 )
Net income from continuing operations 6,369,668 19,526,303
Cumulative effect of changes in accounting principles (the net amount after deducted tax expense $0) 3 — (1,188,515 )
Net income $ 6,369,668 $ 18,337,788
Post-tax Pre-tax
Earnings per share-basic (NTD) 2, 4(21)
Income from continuing operations $ 0.40 $ 0.36 $ 1.13 $ 1.06
Cumulative effect of changes in accounting principles — — (0.06 ) (0.06 )
Net income $ 0.40 $ 0.36 $ 1.07 $ 1.00
Earnings per share-diluted (NTD) 2, 4(21)
Income from continuing operations $ 0.39 $ 0.35 $ 1.09 $ 1.02
Cumulative effect of changes in accounting principles — — (0.06 ) (0.06 )
Net income $ 0.39 $ 0.35 $ 1.03 $ 0.96
Pro forma information on earnings as if subsidiaries’ investment in the Company is not treated as treasury stock 2, 4(21)
Net income $
Earnings per share-basic (NTD) $ 0.36 $ 0.99
Earnings per share-diluted (NTD) $ 0.35 $ 0.95

The accompanying notes are an integral part of the financial statements.

3

English Translation of Financial Statements Originally Issued in Chinese

UNITED MICROELECTRONICS CORPORATION

STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

For the six-month periods ended June 30, 2007 and 2006

(Expressed in Thousands of New Taiwan Dollars)

Notes Capital Cumulative Translation Adjustment Treasury Stock Total
Common Stock Stock Dividends for Distribution Collected in Advance Additional Paid-in Capital Legal Reserve Special Reserve Unappropriated Earnings
Balance as of January 1, 2006 4(15) $ 197,947,033 $ — $ 36,600 $ 85,381,599 $ 15,996,839 $ 1,744,171 $ 8,831,782 $ (9,527,362 ) $ (241,153 ) $ (41,885,956 ) $ 258,283,553
The effect of adopting SFAS NO. 34 3(2) — — — — — — — 23,499,003 11,547 — 23,510,550
Appropriation of 2005 retained earnings 4(18)
Legal reserve — — — — 702,669 — (702,669 ) — — — —
Special reserve — — — — — (1,422,021 ) 1,422,021 — — — —
Cash dividends — — — — — — (7,161,267 ) — — — (7,161,267 )
Stock dividends — 895,158 — — — — (895,158 ) — — — —
Remuneration to directors and supervisors — — — — — — (6,324 ) — — — (6,324 )
Employee bonus - cash — — — — — — (305,636 ) — — — (305,636 )
Employee bonus - stock — 458,455 — — — — (458,455 ) — — — —
Additional paid-in capital transferred to common stock 4(18) — 895,158 — (895,158 ) — — — — — — —
Purchase of treasury stock 2, 4(17) — — — — — — — — — (24,279,397 ) (24,279,397 )
Cancellation of treasury stock 2, 4(15), 4(17) (10,000,000 ) — — (3,269,100 ) — — (6,371,128 ) — — 19,640,228 —
Adjustment of treasury stock due to loss of control over subsidiary — — — — — — (9,256,116 ) 2,620,135 — 20,137,403 13,501,422
Net income in the first half of 2006 — — — — — — 18,337,788 — — — 18,337,788
Adjustment of additional paid-in capital accounted for under the equity method 2 — — — (15,280 ) — — — — — — (15,280 )
Adjustment of funds and investments disposal 2 — — — (14,110,993 ) — — — — 8,171 — (14,102,822 )
Changes in unrealized loss on available-for-sale financial assets 2 — — — — — — — (149,372 ) — — (149,372 )
Changes in unrealized gain on financial instruments of investees 2 — — — — — — — 3,234,967 — — 3,234,967
Exercise of employee stock options 2, 4(16) 468,708 — — 276,867 — — — — — — 745,575
Common stock transferred from capital collected in advance 2 36,600 — (36,600 ) — — — — — — — —
Changes in cumulative translation adjustment 2 — — — — — — — — (634,083 ) — (634,083 )
Balance as of June 30, 2006 4(15) $ 188,452,341 $ 2,248,771 $ — $ 67,367,935 $ 16,699,508 $ 322,150 $ 3,434,838 $ 19,677,371 $ (855,518 ) $ (26,387,722 ) $ 270,959,674
Balance as of January 1, 2007 4(15) $ 191,311,927 $ — $ 11,405 $ 67,707,287 $ 16,699,508 $ 322,150 $ 17,774,335 $ 27,557,845 $ (824,922 ) $ (29,394,664 ) $ 291,164,871
Appropriation of 2006 retained earnings 4(18)
Legal reserve — — — — 1,777,434 — (1,777,434 ) — — — —
Special reserve — — — — — 502,772 (502,772 ) — — — —
Cash dividends — — — — — — (12,461,529 ) — — — (12,461,529 )
Remuneration to directors and supervisors — — — — — — (15,494 ) — — — (15,494 )
Employee bonus - cash — — — — — — (2,324,120 ) — — — (2,324,120 )
Net income in the first half of 2007 — — — — — — 6,369,668 — — — 6,369,668
Adjustment of additional paid-in capital accounted for under the equity method 2 — — — 1,713 — — — — — — 1,713
Adjustment of funds and investments disposal 2 — — — (5,515 ) — — — — — — (5,515 )
Changes in unrealized gain on available-for-sale financial assets 2 — — — — — — — 5,273,095 — — 5,273,095
Changes in unrealized gain on financial instruments of investees 2 — — — — — — — 1,108,204 — — 1,108,204
Exercise of employee stock options 2, 4(16) 119,185 — — 68,308 — — — — — — 187,493
Common stock transferred from capital collected in advance 2 11,405 — (11,405 ) — — — — — — — —
Changes in cumulative translation adjustment 2 — — — — — — — — 246,892 — 246,892
Balance as of June 30, 2007 4(15) $ 191,442,517 $ — $ — $ 67,771,793 $ 18,476,942 $ 824,922 $ 7,062,654 $ 33,939,144 $ (578,030 ) $ (29,394,664 ) $ 289,545,278

The accompanying notes are an integral part of the financial statements.

4

English Translation of Financial Statements Originally Issued in Chinese

UNITED MICROELECTRONICS CORPORATION

STATEMENTS OF CASH FLOWS

For the six-month periods ended June 30, 2007 and 2006

(Expressed in Thousands of New Taiwan Dollars)

For the six-month period ended June 30, — 2007 2006
Cash flows from operating activities:
Net income $ 6,369,668 $ 18,337,788
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation 17,766,348 22,717,399
Amortization 637,484 921,607
Bad debt expenses (reversal) (1,409 ) 7,825
Loss (gain) on decline (recovery) in market value and obsolescence of inventories (58,259 ) 401,003
Cash dividends received under the equity method 353,592 —
Investment gain accounted for under the equity method (1,130,733 ) (582,324 )
Loss on valuation of financial assets and liabilities 115,479 1,351,509
Impairment loss 246,144 21,807
Gain on disposal of investments (4,257,822 ) (18,370,659 )
Gain on disposal of property, plant and equipment (17,312 ) (70,422 )
Exchange loss (gain) on financial assets and liabilities 1,581 (13,861 )
Exchange loss (gain) on long-term liabilities 283,791 (226,299 )
Amortization of bond discounts 34,725 48,280
Amortization of deferred income (71,874 ) (59,747 )
Changes in assets and liabilities:
Financial assets and liabilities at fair value through profit or loss, current 442,351 370,882
Notes and accounts receivable (1,768,915 ) (217,198 )
Other receivables 17,318 111,015
Inventories (724,112 ) (829,918 )
Prepaid expenses (388,537 ) (427,841 )
Deferred income tax assets 501,808 201,116
Accounts payable (162,351 ) (9,516 )
Accrued expenses (105,203 ) (3,706 )
Other current liabilities (95,092 ) 470,496
Capacity deposits (714,685 ) (9,400 )
Accrued pension liabilities 41,448 40,904
Other liabilities - others — 35,640
Net cash provided by operating activities 17,315,433 24,216,380
Cash flows from investing activities:
Acquisition of available-for-sale financial assets (199,450 ) (296,823 )
Proceeds from disposal of available-for-sale financial assets 497,559 5,115,113
Proceeds from maturities of held-to-maturity financial assets 776,000 —
Acquisition of financial assets measured at cost (119,875 ) —
Proceeds from disposal of financial assets measured at cost 400 31,188
Acquisition of long-term investments accounted for under the equity method (494,598 ) (3,465,263 )
Proceeds from disposal of long-term investments accounted for under the equity method 169,901 7,801,029
Prepayment for long-term investments (247,712 ) —
Proceeds from liquidation of long-term investments 10,679 —
Acquisition of property, plant and equipment (21,494,703 ) (11,198,577 )
Proceeds from disposal of property, plant and equipment 236,492 100,882
Increase in deferred charges (617,504 ) (599,150 )
Decrease in other assets - others 23,283 60,117
Net cash used in investing activities (21,459,528 ) (2,451,484 )

5

English Translation of Financial Statements Originally Issued in Chinese

UNITED MICROELECTRONICS CORPORATION

STATEMENTS OF CASH FLOWS

For the six-month periods ended June 30, 2007 and 2006

(Expressed in Thousands of New Taiwan Dollars)

For the six-month period ended June 30, — 2007 2006
(continued)
Cash flows from financing activities:
Redemption of bonds $ (2,259,992 ) $ (5,250,000 )
Exercise of employee stock options 187,493 745,575
Purchase of treasury stock — (23,831,089 )
Increase (decrease) in deposits-in (1,269 ) 627
Net cash used in financing activities (2,073,768 ) (28,334,887 )
Effect of exchange rate changes on cash and cash equivalents (119,257 ) 22,948
Decrease in cash and cash equivalents (6,337,120 ) (6,547,043 )
Cash and cash equivalents at beginning of period 83,394,802 96,596,623
Cash and cash equivalents at end of period $ 77,057,682 $ 90,049,580
Supplemental disclosures of cash flow information:
Cash paid for interest $ 502,693 $ 777,461
Cash paid for income tax $ 1,949,551 $ 78,693
Investing activities partially paid by cash:
Acquisition of property, plant and equipment $ 15,594,957 $ 10,319,403
Add: Payable at beginning of period 10,101,767 5,277,863
Less: Payable at end of period (4,202,021 ) (4,398,689 )
Cash paid for acquiring property, plant and equipment $ 21,494,703 $ 11,198,577
Investing and financing activities not affecting cash flows:
Principal amount of exchangeable bonds exchanged by bondholders $ 3,285,254 $ 69,621
Book value of available-for-sale financial assets delivered for exchange (895,055 ) (20,242 )
Elimination of related balance sheet accounts 392,118 15,302
Recognition of gain on disposal of investments $ 2,782,317 $ 64,681

The accompanying notes are an integral part of the financial statements.

6

UNITED MICROELECTRONICS CORPORATION

NOTES TO FINANCIAL STATEMENTS

June 30, 2007 and 2006

(Expressed in Thousands of New Taiwan Dollars unless Otherwise Specified)

  1. HISTORY AND ORGANIZATION

United Microelectronics Corporation (the Company) was incorporated in May 1980 and commenced operations in April 1982. The Company is a full service semiconductor wafer foundry, and provides a variety of services to satisfy customer needs. These services include intellectual property, embedded IC design, design verification, mask tooling, wafer fabrication, and testing. The Company’s common shares were publicly listed on the Taiwan Stock Exchange (TSE) in July 1985 and its American Depositary Shares (ADSs) were listed on the New York Stock Exchange (NYSE) in September 2000.

The numbers of employees as of June 30, 2007 and 2006 were 13,528 and 12,448, respectively.

  1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The financial statements were prepared in conformity with the “Business Entity Accounting Law”, “Regulation on Business Entity Accounting Handling”, “Guidelines Governing the Preparation of Financial Reports by Securities Issuers” and accounting principles generally accepted in the Republic of China (R.O.C.).

Summary of significant accounting policies is as follows:

Use of Estimates

The preparation of the Company’s Financial Statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that will affect the amount of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amount of revenues and expenses during the reported period. Actual results may differ from those estimates.

Foreign Currency Transactions

Transactions denominated in foreign currencies are remeasured into the local functional currencies and recorded based on the exchange rates prevailing at the transaction dates. Monetary assets and liabilities denominated in foreign currencies are remeasured into the local functional currencies at the exchange rates prevailing at the balance sheet date, with the related exchange gains or losses included in the statements of income. Translation gains or losses from investments in foreign entities are recognized as cumulative translation adjustment in stockholders’ equity.

7

Non-monetary assets and liabilities denominated in foreign currencies that are reported at fair value with changes in fair value charged to the statements of income, are remeasured at the exchange rate at the balance sheet date, with related exchange gains or losses recorded in the statements of income. Non-monetary assets and liabilities denominated in foreign currencies that are reported at fair value with changes in fair value charged to stockholders’ equity, are remeasured at the exchange rate at the balance sheet date, with related exchange gains or losses recorded as adjustment items to stockholders’ equity. Non-monetary assets and liabilities denominated in foreign currencies and reported at cost are remeasured at historical exchange rates.

Translation of Foreign Currency Financial Statements

The financial statements of the Company’s Singapore branch (the Branch) are translated into New Taiwan Dollars using the spot rates as of each financial statement date for asset and liability accounts and average exchange rates for profit and loss accounts. The cumulative translation effects from the Branch using functional currencies other than New Taiwan Dollars are included in the cumulative translation adjustment in stockholders’ equity.

Cash Equivalents

Cash equivalents are short-term, highly liquid investments that are readily convertible to known amounts of cash and with maturity dates that do not present significant risks on changes in value resulting from changes in interest rates, including commercial paper with original maturities of three months or less.

Financial Instruments

In accordance with ROC Statement of Financial Accounting Standard (SFAS) No. 34, “Financial Instruments: Recognition and Measurement” and the “Guidelines Governing the Preparation of Financial Reports by Securities Issuers”, financial assets are classified as either financial assets at fair value through profit or loss, held-to-maturity financial assets, financial assets measured at cost, or available-for-sale financial assets. Financial liabilities are recorded at fair value through profit or loss.

The Company accounts for purchase or sale of financial instruments as of the trade date, which is the date the Company commits to purchasing or selling the asset or liability. Financial assets and financial liabilities are initially recognized at fair value plus acquisition or issuance costs.

8

a. Financial instruments at fair value through profit or loss

Financial instruments held for short-term sale or repurchase purposes and derivative financial instruments not qualified for hedge accounting are classified as financial assets or liabilities at fair value through profit or loss.

This category of financial instruments is measured at fair value and changes in fair value are recognized in the statements of income. Stock of listed companies, convertible bonds, and close-end funds are measured at closing prices as of the balance sheet date. Open-end funds are measured at the unit price of the net assets as of the balance sheet date. The fair value of derivative financial instruments is determined by using valuation techniques commonly used by market participants.

b. Held-to-maturity financial assets

Non-derivative financial assets with fixed or determinable payments and fixed maturity are classified as held-to-maturity financial assets if the Company has both the positive intention and ability to hold the financial assets to maturity. Investments intended to be held to maturity are measured at amortized cost.

The Company recognizes an impairment loss if objective evidence of impairment loss exists. However, the impairment loss may be reversed if the value of asset recovers subsequently and the Company concludes the recovery is related to improvements in events or factors that originally caused the impairment loss. The new cost basis as a result of the reversal cannot exceed the amortized cost prior to the impairment.

c. Financial assets measured at cost

Unlisted stock, funds, and other securities without reliable market prices are measured at cost. When objective evidence of impairment exists, the Company recognizes an impairment loss, which cannot be reversed in subsequent periods.

d. Available-for-sale financial assets

Available-for-sale financial assets are non-derivative financial instruments not classified as financial assets at fair value through profit or loss, held-to-maturity financial assets, loans and receivables. Subsequent measurement is calculated at fair value. Investments in listed companies are measured at closing prices as of the balance sheet date. Any gain or loss arising from the change in fair value, excluding impairment loss and exchange gain or loss arising from monetary financial assets denominated in foreign currencies, is recognized as an adjustment to stockholders’ equity until such investment is reclassified or disposed of, upon which the cumulative gain or loss previously charged to stockholders’ equity will be recorded in the statement of income.

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The Company recognizes an impairment loss when objective evidence of impairment exists. Any reduction in the impairment loss of equity investments in subsequent periods will be recognized as an adjustment to stockholders’ equity. The impairment loss of a debt security may be reversed and recognized in the current period’s statement of income if the security recovers and the Company concludes the recovery is clearly related to improvements in the factors or events that originally caused the impairment.

Allowance for Doubtful Accounts

An allowance for doubtful accounts is provided based on management’s judgment of the collectibility and aging analysis of accounts and other receivables.

Inventories

Inventories are accounted for on a perpetual basis. Raw materials are recorded at actual purchase costs, while the work in process and finished goods are recorded at standard costs and adjusted to actual costs using the weighted-average method at the end of each month. Inventories are stated individually by category at the lower of aggregate cost or market value as of the balance sheet date. The market values of raw materials and supplies are determined on the basis of replacement cost while the market values of work in process and finished goods are determined by net realizable values. An allowance for loss on decline in market value or obsolescence is provided, when necessary.

Long-term Investments Accounted for Under the Equity Method

Long-term investments are initially recorded at acquisition cost. Investments acquired by the contribution of technological know-how are credited to deferred credits among affiliates, which will be amortized to income over a period of 5 years.

Investments in which the Company has ownership of at least 20% or exercises significant influence on operating decisions are accounted for under the equity method. Prior to January 1, 2006, the difference of the acquisition cost and the underlying equity in the investee’s net assets as of acquisition date was amortized over 5 years; however, effective January 1, 2006, goodwill arising from new acquisitions is analyzed and accounted for under the ROC SFAS No. 25, “Business Combination – Accounting Treatment under Purchase Method”, where goodwill is no longer to be amortized.

The change in the Company’s proportionate share in the net assets of an investee resulting from its acquisition of additional stock issued by the investee at a rate not proportionate to its existing equity ownership is charged to the additional paid-in capital and long-term investments accounts.

Unrealized intercompany gains and losses arising from sales from the Company to equity method investees are eliminated in proportion to the Company’s ownership percentage at end of period until realized through transactions with third parties. Intercompany gains and losses arising from transactions between the Company and majority-owned (above 50%) subsidiaries are eliminated entirely until realized through transactions with third parties.

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Unrealized intercompany gains and losses due to sales from equity method investees to the Company are eliminated in proportion to the Company’s weighted-average ownership percentage of the investee until realized through transactions with third parties.

Unrealized intercompany gains and losses arising from transactions between two equity method investees are eliminated in proportion to the Company’s multiplied weighted-average ownership percentage with the investees until realized through transactions with third parties. Those intercompany gains and losses arising from transactions between two majority-owned subsidiaries are eliminated in proportion to the Company’s weighted-average ownership percentage in the subsidiary that incurred the gain or loss.

If the recoverable amount of investees accounted for under the equity method is less than its carrying amount, the difference is to be recognized as impairment loss in the current period.

The total value of an investment and related receivables cannot be negative. If, after the investment loss is recognized, the net book value of the investment is less than zero, the investment is reclassified to other liabilities—others on the balance sheet.

Property, Plant and Equipment

Property, plant and equipment are stated at cost. Interest incurred on loans used to finance the construction of property, plant and equipment is capitalized and depreciated accordingly. Maintenance and repairs are charged to expense as incurred. Significant renewals and improvements are treated as capital expenditures and are depreciated over their estimated useful lives. When property, plant and equipment are disposed, their original cost and accumulated depreciation are written off and the related gain or loss is classified as non-operating income or expense. Idle assets are classified as other assets at the lower of net book or net realizable value, with the difference charged to non-operating expenses.

Depreciation is recognized on a straight-line basis using the estimated economic life of the assets less salvage value, if any. The estimated economic life of the property, plant and equipment is as follows: buildings – 20 to 55 years; machinery and equipment – 5 years; transportation equipment – 5 years; furniture and fixtures – 5 years.

Intangible Assets

Effective January 1, 2006, goodwill generated from business combinations is no longer subject to amortization.

Technological know-how is stated at cost and amortized over its estimated economic life using the straight-line method.

An impairment loss will be recognized when the decreases in fair value of intangible assets are other than temporary. The book value after recognizing the impairment loss is recorded as the new cost.

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Deferred Charges

Deferred charges are stated at cost and amortized on a straight-line basis as follows: intellectual property license fees - select the shorter term of contract or estimated economic life of the related technology; and software - 3 years.

Prior to December 31, 2005, the issuance costs of convertible and exchangeable bonds were classified as deferred charges and amortized over the life of the bonds. Effective January 1, 2006, the unamortized amounts as of December 31, 2005 were reclassified as a bond discount and recorded as a deduction to bonds payable. The amounts are amortized using the effective interest method over the remaining life of the bonds. If the difference between the straight-line method and the effective interest method is immaterial, the amortization of the bond discount may be amortized using the straight-line method and recorded as the adjustment of interest expenses.

Convertible and Exchangeable Bonds

The excess of the stated redemption price over par value is accrued as interest payable and expensed over the redemption period using the effective interest method.

When convertible bondholders exercise their conversion rights, the book value of the bonds is credited to common stock at an amount equal to the par value of the common stock with the excess credited to additional paid-in capital. No gain or loss is recognized on bond conversion.

When exchangeable bondholders exercise their right to exchange their bonds for reference shares, the book value of the bonds is offset against the book value of the investments in reference shares and the related stockholders’ equity accounts, with the difference recognized as a gain or loss on disposal of investments.

In accordance with ROC SFAS No. 34, “Financial Instruments: Recognition and Measurement,” effective as of January 1, 2006, since the economic and risk characteristics of the embedded derivative instrument and the host contract are not clearly and closely related, derivative financial instruments embedded in exchangeable bonds shall be bifurcated and accounted as financial liabilities at fair value through profit or loss.

Pension Plan

All regular employees are entitled to a defined benefit pension plan that is managed by an independently administered pension fund committee. Fund assets are deposited in the committee’s name in the Bank of Taiwan and hence, not associated with the Company. Therefore, fund assets are not to be included in the Company’s financial statements. Pension benefits for employees of the Branch are provided in accordance with the local regulations.

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The Labor Pension Act of the ROC (the Act), which adopts a defined contribution plan, became effective on July 1, 2005. Employees subject to the Labor Standards Law, a defined benefit plan, were allowed to choose to either elect the pension calculation under the Act or continue to be subject to the pension calculation under the Labor Standards Law. Those employees that elected to be subject to the Act will have their seniority achieved under the Labor Standards Law retained upon election of the Act, and the Company will make monthly contributions of no less than 6% of these employees’ monthly wages to the employees’ individual pension accounts.

The accounting for the Company’s pension liability is computed in accordance with ROC SFAS No.18. Net pension costs of the defined benefit plan are recorded based on an actuarial valuation. Pension cost components such as service cost, interest cost, expected return on plan assets, the amortization of net obligation at transition, pension gain or loss, and prior service cost, are all taken into consideration by the actuary. The Company recognizes expenses from the defined contribution pension plan in the period in which the contribution becomes due.

Employee Stock Option Plan

The Company uses intrinsic value method to recognize compensation cost for its employee stock options issued since January 1, 2004. Under the intrinsic value method, the Company recognizes the difference between the market price of the stock on date of grant and the exercise price of its employee stock option as compensation cost. The Company also discloses pro forma net income and earnings per share under the fair value method for options granted since January 1, 2004.

Treasury Stock

The Company adopted ROC SFAS No. 30, “Accounting for Treasury Stocks” which requires that treasury stock held by the Company to be accounted for under the cost method. The cost of treasury stock is shown as a deduction to stockholders’ equity, while any gain or loss from selling treasury stock is treated as an adjustment to additional paid-in capital. The Company’s stock held by its subsidiaries is also treated as treasury stock. Cash dividends received by subsidiaries from the Company are recorded as additional paid-in capital - treasury stock transactions.

Revenue Recognition

The Company recognizes revenue when persuasive evidence of an arrangement exists, the product or service has been delivered, the seller’s price to the buyer is fixed or determinable and collectibility is reasonably assured. Most of the Company’s sales transactions have shipping terms of Free on Board (FOB) or Free Carrier (FCA) shipment in which title and the risk of loss or damage is transferred to the customer upon delivery of the product to a carrier approved by the customer.

Allowance for sales returns and discounts are estimated taking into consideration customer complaints, historical experiences, management judgment and any other known factors that might significantly affect collectibility. Such allowances are recorded in the same period in which sales are made.

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Research and Development Expenditures

Research and development expenditures are charged to expenses as incurred.

Capital Expenditures Versus Operating Expenditures

An expenditure is capitalized when it is probable that the Company will receive future economic benefits associated with the expenditure. Otherwise, the expenditure is expensed as incurred.

Income Tax

The Company adopted ROC SFAS No. 22, “Accounting for Income Taxes” for inter-period and intra-period income tax allocation. The provision for income taxes includes deferred income tax assets and liabilities that are a result of temporary differences between carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes, loss carry-forward and investment tax credits. A valuation allowance on deferred income tax assets is provided to the extent that it is more likely than not that the tax benefits will not be realized. A deferred tax asset or liability is classified as current or noncurrent in accordance with the classification of its related asset or liability. However, if a deferred tax asset or liability does not relate to an asset or liability in the financial statements, then it is classified as either current or noncurrent based on the expected reversal date of the temporary difference.

According to ROC SFAS No. 12, “Accounting for Income Tax Credits”, the Company recognizes the tax benefit from the purchase of equipment and technology, research and development expenditure, employee training, and certain equity investment by the flow-through method.

Income tax (10%) on unappropriated earnings is recorded as expense in the year in which the shareholders have resolved that the earnings shall be retained.

The Income Basic Tax Act of the R.O.C. (the IBTA) became effective on January 1, 2006. Set up by the Executive Yuan, the IBTA is a supplemental 10% tax that is payable if the income tax payable determined by the ROC Income Tax Act is below the minimum amount as prescribed by the IBTA. The IBTA is calculated based on taxable income as defined by the IBTA, which includes most income that is exempted from income tax under various legislations. The impact of the IBTA has been considered in the Company’s income tax for the current reporting period.

Earnings per Share

Earnings per share is computed according to ROC SFAS No. 24, “Earnings Per Share.” Basic earnings per share is computed by dividing net income (loss) by the weighted-average number of common shares outstanding during the current reporting period. Diluted earnings per share is computed by taking basic earnings per share into consideration plus additional common shares that would have been outstanding if the dilutive share equivalents had been issued. Net income (loss) is also adjusted for interest and other income or expenses derived from any underlying dilutive share equivalents. The weighted-average of outstanding shares is adjusted retroactively for stock dividends and bonus share issues.

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Asset Impairment

Pursuant to ROC SFAS No. 35, the Company assesses indicators of impairment for all its assets (except for goodwill) within the scope of the standard at each balance sheet date. If impairment is indicated, the Company compares the asset’s carrying amount with the recoverable amount of the assets or the cash-generating unit (CGU) associated with the asset and writes down the carrying amount to the recoverable amount where applicable. The recoverable amount is defined as the higher of fair value less the costs to sell, and the values in use. For previously recognized losses, the Company assesses at the balance sheet date any indication that the impairment loss no longer exists or may have diminished. If there is any such indication, the Company recalculates the recoverable amount of the asset, and if the recoverable amount has increased as a result of the increase in the estimated service potential of the assets, the Company reverses the impairment loss so that the resulting carrying amount of the asset does not exceed the amount (net of amortization or depreciation) that would otherwise result had no impairment loss been recognized for the assets in prior years.

In addition, a goodwill-allocated CGU or group of CGUs is tested for impairment each year, regardless of whether impairment is indicated. If an impairment test reveals that the carrying amount, including goodwill, of CGU or group of CGUs is greater than its recoverable amount, there is an impairment loss. The loss is first recorded against the CGU’s goodwill, with any remaining loss allocated to other assets on a pro rata basis proportionate to their carrying amounts. The write-down of goodwill cannot be reversed in subsequent periods under any circumstances.

Impairment losses and reversals are classified as non-operating loss and income, respectively.

  1. ACCOUNTING CHANGES

Goodwill

The Company adopted the amendments to ROC SFAS No. 1, “Conceptual Framework of Financial Accounting and Preparation of Financial Statements,” SFAS No. 5, “Long-Term Investments in Equity Securities,” and SFAS No. 25, “Business Combinations - Accounting Treatment under Purchase Method,” all of which have discontinued the amortization of goodwill effective January 1, 2006. As a result of adopting the revised SFAS No.1, revised SFAS No.5 and revised SFAS No.25 on January 1, 2006, the Company’s total assets as of June 30, 2006 are NT$429 million higher than if it had continued to account for goodwill under the prior year’s requirements. The net income and earnings per share for the six-month period ended June 30, 2006, are NT$429 million and NT$0.02 higher, respectively, than if the Company had continued to account for goodwill under the prior year’s requirements.

Financial Instruments

(1) The Company adopted ROC SFAS No. 34, “Financial Instruments: Recognition and Measurement” and SFAS No. 36, “Financial Instruments: Disclosure and Presentation” to account for the financial instruments effective January 1, 2006.

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(2) The above changes in accounting principles increased the Company’s total assets, total liabilities, and stockholders’ equity as of January 1, 2006 by NT$23,648 million, NT$1,326 million, and NT$22,322 million, respectively; and resulted in an unfavorable cumulative effect of changes in accounting principles of NT$1,189 million deducted from net income, thereby reducing earnings per share by NT$0.06 for the six-month period ended June 30, 2006.

  1. CONTENTS OF SIGNIFICANT ACCOUNTS

(1) CASH AND CASH EQUIVALENTS

As of June 30, — 2007 2006
Cash:
Cash on hand $ 1,921 $ 1,874
Checking and savings accounts 2,276,717 1,516,567
Time deposits 55,954,024 79,104,197
Subtotal 58,232,662 80,622,638
Cash equivalents: 18,825,020 9,426,942
Total $ 77,057,682 $ 90,049,580

(2) FINANCIAL ASSETS AT FAIR VALUE THROUGH PROFIT OR LOSS, CURRENT

Held for trading As of June 30, — 2007 2006
Listed stocks $ 7,686,348 $ 1,138,214
Convertible bonds 111,010 313,439
Open-end fund — 54,410
Total $ 7,797,358 $ 1,506,063

During the six-month periods ended June 30, 2007 and 2006, net loss arising from the changes in fair value of financial assets at fair value through profit or loss, current, were NT$69 million and NT$250 million, respectively.

(3) HELD-TO-MATURITY FINANCIAL ASSETS

As of June 30, — 2007 2006
Credit-linked deposits and repackage bonds $ 200,000 $ 979,456
Less: Non-current portion — (200,000 )
Total $ 200,000 $ 779,456

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(4) ACCOUNTS RECEIVABLE, NET

As of June 30, — 2007 2006
Accounts receivable $ 7,369,981 $ 5,547,886
Less: Allowance for sales returns and discounts (169,912 ) (133,825 )
Less: Allowance for doubtful accounts — (57,850 )
Net $ 7,200,069 $ 5,356,211

(5) INVENTORIES, NET

As of June 30, — 2007 2006
Raw materials $ 845,409 $ 933,763
Supplies and spare parts 1,837,976 1,691,672
Work in process 8,167,776 8,325,959
Finished goods 800,431 305,657
Total 11,651,592 11,257,051
Less: Allowance for loss on decline in market value and obsolescence (740,178 ) (873,759 )
Net $ 10,911,414 $ 10,383,292

Inventories were not pledged.

(6) AVAILABLE-FOR-SALE FINANCIAL ASSETS, NONCURRENT

As of June 30, — 2007 2006
Common stock $ 46,727,005 $ 36,448,324
Preferred stock — 1,416,479
Total $ 46,727,005 $ 37,864,803

During the six-month periods ended June 30, 2007 and 2006, the total unrealized gain adjustment to stockholders’ equity due to changes in fair value of available-for-sale assets were NT$8,450 million and NT$4,861 million, respectively.

Additionally, the Company recognized gains of NT$3,177 million and NT$5,010 million due to the disposal of available-for-sale assets during the six-month periods ended June 30, 2007 and 2006, respectively.

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(7) FINANCIAL ASSETS MEASURED AT COST, NONCURRENT

As of June 30, — 2007 2006
Common stock $ 1,495,556 $ 1,458,246
Preferred stock 467,645 300,000
Funds 358,337 507,482
Total $ 2,321,538 $ 2,265,728

(8) LONG-TERM INVESTMENTS ACCOUNTED FOR UNDER THE EQUITY METHOD

a. Details of long-term investments accounted for under the equity method are as follows:

As of June 30, — 2007 2006
Investee Company Amount Percentage of Ownership or Voting Rights Amount Percentage of Ownership or Voting Rights
Listed companies
UMC JAPAN $ 5,578,444 50.09 $ 6,134,625 50.09
HOLTEK SEMICONDUCTOR INC. 903,961 23.12 922,620 24.67
ITE TECH. INC. 380,738 21.62 347,675 22.04
UNIMICRON TECHNOLOGY CORP. (UNIMICRON) (Note A) — — 4,531,744 20.40
Subtotal 6,863,143 11,936,664
Unlisted companies
UMC GROUP (USA) 982,297 100.00 803,681 100.00
UNITED MICROELECTRONICS (EUROPE) B.V. 295,851 100.00 276,285 100.00
UMC CAPITAL CORP. 3,969,316 100.00 2,140,698 100.00
UNITED MICROELECTRONICS CORP. (SAMOA) 5,246 100.00 12,865 100.00
UMCI LTD. 98 100.00 23 100.00
TLC CAPITAL CO., LTD. 8,328,633 100.00 6,030,797 100.00
FORTUNE VENTURE CAPITAL CORP. (Note B) 11,417,688 99.99 6,332,605 99.99
UNITED MICRODISPLAY OPTRONICS CORP. (UMO) (Note C) 257,487 85.24 252,208 86.72
PACIFIC VENTURE CAPITAL CO., LTD. (PACIFIC) (Note D) 127,379 49.99 277,379 49.99
MTIC HOLDINGS PTE LTD. 78,805 49.94 — —
MEGA MISSION LIMITED PARTNERSHIP 2,551,817 45.00 — —
UNITECH CAPITAL INC. 1,122,669 42.00 746,830 42.00
NEXPOWER TECHNOLOGY CORP. 295,176 36.66 — —

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As of June 30, — 2007 2006
Investee Company Amount Percentage of Ownership or Voting Rights Amount Percentage of Ownership or Voting Rights
HSUN CHIEH INVESTMENT CO., LTD. (HSUN CHIEH) (Note E) $ 4,943,314 36.49 $ 4,069,373 36.49
XGI TECHNOLOGY INC. (Note F) 40,619 16.44 65,721 16.50
AMIC TECHNOLOGY CORP. (Note F) 49,654 11.82 53,403 11.86
THINTEK OPTRONICS CORP. (THINTEK) (Notes C) — — 11,837 27.82
HIGHLINK TECHNOLOGY CORP. (HIGHLINK) (Notes F, G) — — 251,430 18.99
Subtotal 34,466,049 21,325,135
Total $ 41,329,192 $ 33,261,799
Note A : As the Company did not have significant influence after decreasing its percentage of ownership in UNIMICRON in November 2006, the investee was classified as available-for-sale financial asset.
Note B : As of June 30, 2007 and 2006, the cost of the investment was NT$11,590 million and NT$6,504 million, respectively. After deducting the Company’s stock held by the subsidiary (treated
as treasury stock by the Company) of NT$172 million in both years, the residual book values totalled NT$11,418 million and NT$6,332 million as of June 30, 2007 and 2006, respectively.
Note C : THINTEK was merged into UMO on October 1, 2006. The exchange ratio was 2.31 to 1.
Note D : On June 27, 2006, PACIFIC set July 3, 2006 as its liquidation date through decision at its shareholders’ meeting. The liquidation has not been completed as of June 30, 2007.
Note E : As of January 27, 2006, the Company sold 58.5 million shares of HSUN CHIEH. The Company’s ownership percentage decreased from 99.97% to 36.49%. As HSUN CHIEH ceased to be a
subsidiary, the Company’s stock held by HSUN CHIEH was reclassified from treasury stock to long-term investments accounted for under the equity method. The reclassification increased long-term investments accounted for under the equity method
and stockholders’ equity by NT$10,881 million.
Note F : The equity method was applied for investees, in which the total ownership held by the Company and its subsidiaries is over 20%.

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Note G
During the transaction, 5.5 shares of the HIGHLINK were exchanged for 1 share of EPISTAR CORP. and 3.08 shares of the EPITECH were exchanged for 1 share of EPISTAR CORP.

b. Total gain arising from investments accounted for under the equity method were NT$1,131 million and NT$582 million for the six-month periods ended June 30, 2007 and 2006, respectively. Among which, investment income amounted to NT$470 million and NT$499 million for the six-month periods ended June 30, 2007 and 2006, respectively, and the related long-term investment balances of NT$7,049 million and NT$5,706 million as of June 30, 2007 and 2006, respectively, were determined based on the investees’ financial statements audited by other auditors.

c. The long-term equity investments were not pledged.

(9) PROPERTY, PLANT AND EQUIPMENT

As of June 30, 2007 — Cost Accumulated Depreciation Book Value
Land $ 1,132,576 $ — $ 1,132,576
Buildings 17,006,507 (5,768,922 ) 11,237,585
Machinery and equipment 411,555,214 (303,416,061 ) 108,139,153
Transportation equipment 74,328 (57,757 ) 16,571
Furniture and fixtures 2,515,541 (1,958,636 ) 556,905
Construction in progress and prepayments 19,631,876 — 19,631,876
Total $ 451,916,042 $ (311,201,376 ) $ 140,714,666
As of June 30, 2006
Cost Accumulated Depreciation Book Value
Land $ 1,132,576 $ — $ 1,132,576
Buildings 16,249,112 (5,029,042 ) 11,220,070
Machinery and equipment 380,689,179 (267,628,301 ) 113,060,878
Transportation equipment 78,461 (57,351 ) 21,110
Furniture and fixtures 2,300,342 (1,646,990 ) 653,352
Construction in progress and prepayments 10,539,974 — 10,539,974
Total $ 410,989,644 $ (274,361,684 ) $ 136,627,960

a. Total interest expense before capitalization amounted to NT$144 million and NT$397 million for the six-month periods ended June 30, 2007 and 2006, respectively.

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Details of capitalized interest are as follows:

For the six-month period ended June 30, — 2007 2006
Machinery and equipment $ 54,965 $ —
Other property, plant and equipment 7,680 —
Total interest capitalized $ 62,645 $ —
Interest rates applied 0.67%~0.92 % —

b. Property, plant, and equipment were not pledged.

(10) OTHER ASSETS - OTHERS

As of June 30, — 2007 2006
Leased assets $ 1,224,825 $ 1,355,758
Deposits-out 642,214 542,121
Others 59,118 59,118
Total $ 1,926,157 $ 1,956,997

Please refer to Note 6 for deposits-out pledged as collateral.

(11) IMPAIRMENT

For the six-month period ended June 30, — 2007 2006
Available for sale financial assets, noncurrent $ 162,481 $ —
Financial assets measured at cost, noncurrent 83,663 —
Long-term investments accounted for under the equity method — 21,807
Total $ 246,144 $ 21,807

(12) FINANCIAL LIABILITIES AT FAIR VALUE THROUGH PROFIT OR LOSS, CURRENT

As of June 30, — 2007 2006
Interest rate swaps $ 423,226 $ 633,039
Derivatives embedded in exchangeable bonds — 555,251
Total $ 423,226 $ 1,188,290

During the six-month periods ended June 30, 2007 and 2006, net gain arising from the changes in fair value of financial liabilities at fair value through profit or loss, current were NT$341 million and NT$99 million, respectively.

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(13) BONDS PAYABLE

As of June 30, — 2007 2006
Unsecured domestic bonds payable $ 18,000,000 $ 25,250,000
Convertible bonds payable 12,551,874 12,361,174
Exchangeable bonds payable — 3,101,961
Less: discounts on bonds payable (34,456 ) (120,985 )
Total 30,517,418 40,592,150
Less: current portion (23,022,656 ) (10,312,904 )
Net $ 7,494,762 $ 30,279,246

a. During the period from April 16 to April 27, 2001, the Company issued five-year and seven-year unsecured bonds totaling NT$15,000 million, each with a face value of NT$7,500 million. The interest is paid annually with stated interest rates of 5.1195% through 5.1850% and 5.2170% through 5.2850%, respectively. The five-year bonds and seven-year bonds are repaid starting from April 2004 to April 2006 and April 2006 to April 2008, respectively, both in three yearly installments at the rates of 30%, 30% and 40%. On April 27, 2006, the five-year bonds were fully repaid.

b. During the period from October 2 to October 15, 2001, the Company issued three-year and five-year unsecured bonds totaling NT$10,000 million, each with a face value of NT$5,000 million. The interest was paid annually with stated interest rates of 3.3912% through 3.420% and 3.4896% through 3.520%, respectively. On October 15, 2006 and 2004, the five-year bonds and the three-year bonds were fully repaid, respectively.

c. On May 10, 2002, the Company issued zero coupon exchangeable bonds listed on the EuroMTF Market of the Luxembourg stock Exchange (LSE). The terms and conditions of the bonds are as follows:

(a) Issue Amount: US$235 million

(b) Period: May 10, 2002 ~ May 10, 2007

(c) Redemption

i. The Company may redeem the bonds, in whole or in part, after three months of the issuance and prior to the maturity date, at their principal amount if the closing price of the AU Optionics Corp. (AUO) common shares on the TSE, translated into US dollars at the prevailing exchange rate, for a period of 20 consecutive trading days, the last of which occurs not more than 10 days prior to the date upon which notice of such redemption is published, is at least 120% of the exchange price then in effect translated into US dollars at the rate of NT$34.645=US$1.00.

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ii. The Company may redeem the bonds, in whole, but not in part, if at least 90% in principal amount of the bonds has already been exchanged, redeemed or purchased and cancelled.

iii. The Company may redeem all, but not part, of the bonds, at any time, in the event of certain changes in the R.O.C.’s tax rules which would require the Company to gross up for payments of principal, or to gross up for payments of interest or premium.

iv. The Company will, at the option of the bondholders, redeem such bonds on February 10, 2005 at its principal amount.

(d) Terms of Exchange

i. Underlying securities: ADSs or common shares of AUO.

ii. Exchange Period: The bonds are exchangeable at any time on or after June 19, 2002 and prior to April 10, 2007, into AUO common shares or AUO ADSs; provided, however, that if the exercise date falls within 5 business days from the beginning of, and during, any closed period, the right of the exchanging holder of the bonds to vote with respect to the shares it receives will be subject to certain restrictions.

iii. Exchange Price and Adjustment: The exchange price is NT$44.3 per share, determined on the basis of a fixed exchange rate of NT$34.645=US$1.00. The exchange price will be subject to adjustments upon the occurrence of certain events set out in the indenture.

(e) Exchange of the Bonds

As of June 30, 2007 and 2006, certain bondholders have exercised their rights to exchange their bonds with the total principal amount of US$235 million and US$139 million into AUO shares, respectively. Gain arising from the exercise of exchange rights during the six-month periods ended June 30, 2007 and 2006 amounted NT$2,782 million and NT$65 million, respectively, and were recognized as gain on disposal of investment.

(f) Redemption at maturity date

At the maturity date of May 10, 2007, the Company had redeemed the bonds at 100% of the unpaid principal amount of US$0.3 million outstanding.

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d. During the period from May 21 to June 24, 2003, the Company issued five-year and seven-year unsecured bonds totaling NT$15,000 million, each with a face value of NT$7,500 million. The interest is paid annually with stated interest rates of 4.0% minus USD 12-Month LIBOR and 4.3% minus USD 12-Month LIBOR, respectively. Stated interest rates are reset annually based on the prevailing USD 12-Month LIBOR. The five-year bonds and seven-year bonds are repayable in 2008 and 2010, respectively, upon the maturity of the bonds.

e. On October 5, 2005, the Company issued zero coupon convertible bonds on the LSE. The terms and conditions of the bonds are as follows:

(a) Issue Amount: US$381.4 million

(b) Period: October 5, 2006 ~ February 15, 2008 (Maturity date)

(c) Redemption

i. On or at any time after April 5, 2007, if the closing price of the ADSs listed on the NYSE has been at least 130% of either the conversion price or the last adjusted conversion price, for 20 out of 30 consecutive ADS trading days, the Company may redeem all, but not some only, of the bonds.

ii. If at least 90% in principal amount of the bonds have already been redeemed, repurchased, cancelled or converted, the Company may redeem all, but not some only, of the bonds.

iii. In the event that the Company’s ADSs or shares have officially cease to be listed or admitted for trading on the New York Stock Exchange or the Taiwan Stock Exchange, as the case may be, each bondholder shall have the right, at such bondholder’s option, to require the Company to repurchase all, but not in part, of such bondholder’s bonds at their principal amount.

iv. In the event of certain changes in taxation in the R.O.C. resulting in the Company becoming required to pay additional amounts, the Company may redeem all, but not in part, of the bonds at their principal amount; bondholders may elect not to have their bonds redeemed by the Company in such event, in which case the bondholders shall not be entitled to receive payments of such additional amounts.

v. If a change of control occurs with respect to the Company, each bondholder shall have the right at such bondholder’s option, to require the Company to repurchase all, but not in part, of such bondholder’s bonds at their principal amount.

vi. The Company will pay the principal amount of the bonds at its maturity date, February 15, 2008.

24

(d) Conversion

i. Conversion Period: Except for the closed period, the bonds may be converted into the Company’s ADSs on or after November 4, 2005 and on or prior to February 5, 2008.

ii. Conversion Price and Adjustment: The conversion price is US$3.693 per ADS. The applicable conversion price will be subject to adjustments upon the occurrence of certain events set out in the indenture.

f. Repayments of the above-mentioned bonds in the future years are as follows:

(Assuming the convertible bonds are paid off upon maturity.)

Bonds repayable in Amount
2007 $ —
2008 23,051,874
2009 —
2010 7,500,000
2011 and thereafter —
Total $ 30,551,874

(14) PENSION PLAN

a. The Labor Pension Act of the R.O.C. (the Act), which adopts a defined contribution plan, became effective on July 1, 2005. Employees subject to the Labor Standards Law, a defined benefit plan, were allowed to choose to either elect the pension calculation under the Act or continue to be subject to the pension calculation under the Labor Standards Law. Those employees that elected to be subject to the Act will have their seniority achieved under the Labor Standards Law retained upon election of the Act, and the Company will make monthly contributions of no less than 6% of these employees’ monthly wages to the employees’ individual pension accounts. The Company has made monthly contributions based on each individual employee’s salary or wage to employees’ pension accounts beginning July 1, 2005 and totaled of NT$194 million and NT$180 million were contributed by the Company for the six-month periods ended June 30, 2007 and 2006, respectively. Pension benefits for employees of the Branch are provided in accordance with the local regulations ,and during the six-month periods ended June 30, 2007 and 2006, the Company has made contributions of NT$55 million and NT$46 million, respectively.

25

b. The defined benefit plan under the Labor Standards Law is disbursed based on the units of service years and the average salary in the last month of the service year. Two units per year are awarded for the first 15 years of services while one unit per year is awarded after the completion of the fifteenth year. The total units shall not exceed 45 units. In accordance to the plan, the Company contributes an amount equivalent to 2% of the employees’ total salaries and wages on a monthly basis to the pension fund deposited at the Bank of Taiwan in the name of an administered pension fund committee. Pension costs amounting to NT$94 million and NT$95 million were recognized for the six-month periods ended June 30, 2007 and 2006, respectively. The corresponding balances of the pension fund were NT$1,245 million and NT$1,135 million as of June 30, 2007 and 2006, respectively.

(15) CAPITAL STOCK

a. The Company had 26,000 million common shares authorized to be issued, and 18,845 million shares were issued as of June 30, 2006, each at a par value of NT$10.

b. The Company has issued a total of 277 million ADSs, which were traded on the NYSE as of June 30, 2006. The total number of common shares of the Company represented by all issued ADSs was 1,384 million shares as of June 30, 2006. One ADS represents five common shares.

c. Among the employee stock options issued by the Company on October 7, 2002 and January 3, 2003, 47 million shares were exercised during the six-month period ended June 30, 2006. The issuance process through the authority had been completed.

d. On May 22, 2006, the Company cancelled 1,000 million shares of treasury stocks, which were bought back during the period from February 16, 2006 to April 11, 2006 for retention of the Company’s creditability and stockholders’ interests.

e. As recommended by the board of directors, and approved by the shareholders on the meeting held on June 12, 2006, the Company issued 225 million new shares from capitalization of retained earnings and additional paid-in capital that amounted to NT$2,249 million, of which NT$895 million was stock dividend, NT$459 million was employee bonus, and NT$895 million was additional paid-in capital. The issuance process through the authority had been completed.

f. The Company had 26,000 million common shares authorized to be issued, and 19,144 million shares was issued as of June 30, 2007, each at a par value of NT$10.

26

g. The Company had issued a total of 315 million ADSs, which were traded NYSE as of June 30, 2007. The total number of common shares of the Company represented by all issued ADSs was 1,576 million shares as of June 30, 2007. One ADS represents five common shares.

h. Among the employee stock options issued by the Company on October 7, 2002, January 3, 2003 and October 13, 2004, 12 million shares were exercised during the six-month period ended June 30, 2007. The issuance process through the authority had been completed.

i. Approved by the shareholders’ meeting on June 11, 2007, the Company had resolved to carry out a capital reduction of NT$ 57,394 million with the cancellation of 5,739 million of its outstanding shares. The capital reduction through the authority is still in process.

(16) EMPLOYEE STOCK OPTIONS

On September 11, 2002, October 8, 2003, September 30, 2004, and December 22, 2005, the Company was authorized by the Securities and Futures Bureau of the Financial Supervisory Commission, Executive Yuan, to issue employee stock options with a total number of 1 billion, 150 million, 150 million, and 350 million units, respectively. Each unit entitles an optionee to subscribe to 1 share of the Company’s common stock. Settlement upon the exercise of the options will be made through the issuance of new shares by the Company. The exercise price of the options was set at the closing price of the Company’s common stock on the date of grant. The contractual life is 6 years and an optionee may exercise the options in accordance with certain schedules as prescribed by the plan starting 2 years from the date of grant. Detailed information relevant to the employee stock options is disclosed as follows:

Date of grant Total number of options granted (in thousands) Total number of options outstanding (in thousands) Exercise price (NTD)
October 7, 2002 939,000 531,986 $ 15.7
January 3, 2003 61,000 44,411 $ 17.7
November 26, 2003 57,330 44,910 $ 24.7
March 23, 2004 33,330 21,575 $ 22.9
July 1, 2004 56,590 43,590 $ 20.7
October 13, 2004 20,200 12,332 $ 17.8
April 29, 2005 23,460 17,145 $ 16.4
August 16, 2005 54,350 39,160 $ 21.6
September 29, 2005 51,990 44,974 $ 19.7
January 4, 2006 39,290 28,130 $ 17.7
May 22, 2006 42,058 35,200 $ 19.2
August 24, 2006 28,140 24,070 $ 18.4

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a. A summary of the Company’s stock option plans, and related information for the six-month periods ended June 30, 2007 and 2006, are as follows:

For the six-month period ended June 30,
2007 2006
Option (in thousands) Weighted-average Exercise Price (NTD) Option (in thousands) Weighted-average Exercise Price (NTD)
Outstanding at beginning of period 913,958 $ 17.5 975,320 $ 17.3
Granted — $ — 81,348 $ 18.4
Exercised (11,918 ) $ 15.7 (46,871 ) $ 15.7
Forfeited (14,557 ) $ 19.7 (32,891 ) $ 18.6
Outstanding at end of period 887,483 $ 17.5 976,906 $ 17.4
Exercisable at end of period 662,435 $ 16.7 502,264 $ 16.5
Weighted-average fair value of options granted during the period (NTD) $ — $ 5.9

b. The information of the Company’s outstanding stock options as of June 30, 2007, is as follows:

| Authorization Date | Range of Exercise
Price | Outstanding Stock Options — Option (in thousands) | Weighted-average Remaining Contractual Live (Years) | Weighted-average Exercise Price (NTD) | Exercisable Stock Options — Option (in thousands) | Weighted-average Exercise Price (NTD) |
| --- | --- | --- | --- | --- | --- | --- |
| 2002.09.11 | $ 15.7~ $17.7 | 576,397 | 1.29 | $ 15.9 | 576,133 | $ 15.9 |
| 2003.10.08 | $ 20.7~ $24.7 | 110,075 | 2.70 | $ 22.8 | 72,405 | $ 23.1 |
| 2004.09.30 | $ 16.4~ $21.6 | 113,611 | 4.04 | $ 19.7 | 13,897 | $ 17.0 |
| 2005.12.22 | $ 17.7~ $19.2 | 87,400 | 4.84 | $ 18.5 | — | $ — |
| | | 887,483 | 2.17 | $ 17.5 | 662,435 | $ 16.7 |

c. The Company uses intrinsic value method to recognize compensation costs for its employee stock options issued since January 1, 2004. The compensation costs for the six-month periods ended June 30, 2007 and 2006 are nil because the Company grants options with the exercise price equal to the current market price. Pro forma information using the fair value method on net income and earnings per share is as follows:

For the six-month period ended June 30, 2007 — Basic earnings per share Diluted earnings per share
Net Income $ 6,369,668 $ 6,497,263
Earnings per share (NTD) $ 0.36 $ 0.35
Pro forma net income $ 6,166,802 $ 6,294,397
Pro forma earnings per share (NTD) $ 0.35 $ 0.34

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| | For the six-month period ended June 30, 2006 (retroactively
adjusted) — Basic earnings per share | Diluted earnings per share |
| --- | --- | --- |
| Net Income | $ 18,337,788 | $ 18,175,519 |
| Earnings per share (NTD) | $ 1.00 | $ 0.96 |
| Pro forma net income | $ 18,147,409 | $ 17,985,140 |
| Pro forma earnings per share (NTD) | $ 0.99 | $ 0.95 |

The fair value of the options granted was estimated at the date of grant using the Black-Scholes option pricing model with the following assumptions for the six-month period ended June 30, 2006: expected dividend yield of 1.37%; volatility factors of the expected market price of the Company’s common stock of 37.09%~41.14%; risk-free interest rate of 1.88%~2.28%; and expected life of the options of 4~5 years.

(17) TREASURY STOCK

a. The Company bought back its own shares from the open market during the six-month periods ended June 30, 2007 and 2006. Details of the treasury stock transactions are as follows:

For the six-month period ended June 30, 2007

(In thousands of shares)

Purpose As of January 1, 2007 Increase Decrease As of June 30, 2007
For transfer to employees 842,067 — — 842,067
For conversion of the convertible bonds into shares 500,000 — — 500,000
Total shares 1,342,067 — — 1,342,067

For the six-month period ended June 30, 2006

(In thousands of shares)

Purpose As of January 1, 2006 Increase Decrease As of June 30, 2006
For transfer to employees 442,067 243,171 — 685,238
For conversion of the convertible bonds into shares 500,000 — — 500,000
For retention of the Company’s creditability and stockholders’ interests — 1,000,000 1,000,000 —
Total shares 942,067 1,243,171 1,000,000 1,185,238

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b. According to the Securities and Exchange Law of the R.O.C., the total shares of treasury stock shall not exceed 10% of the Company’s issued stock, and the total purchase amount shall not exceed the sum of the retained earnings, additional paid-in capital – premiums, and realized additional paid-in capital. As such, the maximum number of shares of treasury stock that the Company could hold as of June 30, 2007 and 2006, was 1,914 million shares and 1,885 million shares, while the ceiling amount was NT$86,687 million and NT$80,233 million, respectively.

c. In compliance with Securities and Exchange Law of the R.O.C., treasury stock should not be pledged, nor should it be entitled to voting rights or receiving dividends. Stock held by subsidiaries is treated as treasury stock. These subsidiaries have the same rights as other stockholders except for subscription to new stock issuance. Starting June 22, 2005, stocks held by subsidiaries no longer have voting rights according to the revised Companies Act.

d. As of June 30, 2007, the Company’s subsidiary, FORTUNE VENTURE CAPITAL CORP., held 22 million shares of the Company’s stock, with a book value of NT$19.85 per share. The closing price on June 30, 2007 was NT$19.85.

As of June 30, 2006, the Company’s subsidiary, FORTUNE VENTURE CAPITAL CORP., held 22 million shares of the Company’s stock, with a book value of NT$19.4 per share. The closing price on June 30, 2006 was NT$19.4.

(18) RETAINED EARNINGS AND DIVIDEND POLICIES

According to the Company’s Articles of Incorporation, current year’s earnings, if any, shall be distributed in the following order:

a. Payment of all taxes and dues;

b. Offset prior years’ operation losses;

c. Set aside 10% of the remaining amount after deducting items (a) and (b) as a legal reserve;

d. Set aside 0.1% of the remaining amount after deducting items (a), (b), and (c) as directors’ and supervisors’ remuneration; and

e. After deducting items (a), (b), and (c) above from the current year’s earnings, no less than 5% of the remaining amount together with the prior years’ unappropriated earnings is to be allocated as employees’ bonus, which will be settled through issuance of new shares of the Company, or cash. Employees of the Company’s subsidiaries, meeting certain requirements determined by the board of directors, are also eligible for the employees’ bonus.

f. The distribution of the remaining portion, if any, will be recommended by the board of directors and subject to shareholders’ approval.

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The policy for dividend distribution should reflect factors such as the current and future investment environment, fund requirements, domestic and international competition and capital budgets; as well as the benefit of shareholders, share bonus equilibrium, and long-term financial planning. The board of directors shall make the distribution proposal annually and present it at the shareholders’ meeting. The Company’s Articles of Incorporation further provide that no more than 80% of the dividends to shareholders, if any, may be paid in the form of stock dividends. Accordingly, at least 20% of the dividends must be paid in the form of cash.

The distributions of retained earnings for the years 2006 and 2005 were approved through the shareholders’ meetings held on June 11, 2007 and June 12, 2006, respectively. The details of distribution are as follows:

2006 2005
Cash Dividend $ 0.70 per share $ 0.40 per share
Stock Dividend — $ 0.05 per share
Employees’ bonus – Cash Dividend (NTD thousands) 2,324,120 305,636
Employees’ bonus – Stock Dividend (NTD thousands) — 458,455
Directors’ and Supervisors’ remuneration (NTD thousands) 15,494 6,324

Pursuant to Article 41 of the Securities and Exchange Law of the R.O.C., a special reserve is set aside from the current net income and unappropriated earnings for items that are accounted for as deductions to stockholders’ equity such as unrealized loss on long-term investment and cumulative translation adjustments. However, there are the following exceptions for the Company’s investees’ unrealized loss on long-term investments arising from the merger, which was recognized by the Company in proportion to the Company’s ownership percentage:

a. According to the explanatory letter No. 101801 of the Securities and Futures Commission (SFC), if the Company recognizes the investees’ additional paid-in capital–excess from the merger in proportion to the ownership percentage, then the special reserve is exempted for the amount originated from the acquisition of the long-term investments.

b. If the Company and its investees transfer a portion of the additional paid-in capital to increase capital, a special reserve equal to the amount of the transfer shall be provided according to the explanatory letter No. 101801-1 of the SFC.

c. In accordance with the explanatory letter No. 170010 of the SFC applicable to listed companies, in the case where the market value of the Company’s stock held by its subsidiaries at period-end is lower than the book value, a special reserve shall be provided in the Company’s accounts in proportion to its ownership percentage.

For the 2005 appropriations approved by the shareholders’ meeting on June 12, 2006, unrealized loss on long-term investments exempted from the provision of special reserve pursuant to the above regulations amounted to NT$18,208 million.

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(19) OPERATING COSTS AND EXPENSES

The Company’s personnel, depreciation, and amortization expenses are summarized as follows:

For the six-month period ended June 30,
2007 2006
Operating costs Operating expenses Total Operating costs Operating expenses Total
Personnel expenses
Salaries $ 4,546,395 $ 1,426,027 $ 5,972,422 $ 3,401,756 $ 1,015,022 $ 4,416,778
Labor and health insurance 223,957 64,156 288,113 213,244 59,748 272,992
Pension 263,286 79,893 343,179 249,115 72,347 321,462
Other personnel expenses 46,646 16,042 62,688 41,122 11,869 52,991
Depreciation 16,759,835 1,001,753 17,761,588 21,611,294 1,098,235 22,709,529
Amortization 34,953 602,531 637,484 98,047 823,560 921,607

(20) INCOME TAX

a. Reconciliation between the income tax expense and the income tax calculated on pre-tax financial statement income based on the statutory tax rate is as follows:

For the six-month period ended June 30, — 2007 2006
Income tax on pre-tax income at statutory tax rate $ 2,515,182 $ 5,197,957
Permanent differences (2,479,003 ) (4,438,925 )
Change in investment tax credit 2,426,148 (311,360 )
Change in valuation allowance (1,960,519 ) (246,556 )
Income basic tax 272,707 1,153,000
Income tax on interest revenue separately taxed 402 432
Income tax expense $ 774,917 $ 1,354,548

b. Significant components of deferred income tax assets and liabilities are as follows:

As of June 30,
2007 2006
Amount Tax effect Amount Tax effect
Deferred income tax assets
Investment tax credit $ 12,438,810 $ 13,920,405
Loss carry-forward $ 3,815,034 953,758 $ 10,005,826 2,501,456
Pension 3,123,974 780,993 3,042,614 760,654
Allowance on sales returns and discounts 370,106 92,527 737,457 184,364
Allowance for loss on decline in market value and obsolescence of inventories 668,476 167,119 761,978 190,495
Unrealized exchange loss 176,200 44,050 — —
Others 754,262 188,566 812,027 203,007
Total deferred income tax assets 14,665,823 17,760,381
Valuation allowance (7,150,594 ) (8,428,805 )
Net deferred income tax assets 7,515,229 9,331,576

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As of June 30,
2007 2006
Amount Tax effect Amount Tax effect
Deferred income tax liabilities
Unrealized exchange gain $ — $ — $ (461,337 ) $ (115,334 )
Depreciation (5,732,562 ) (1,433,140 ) (6,078,835 ) (1,519,709 )
Others (2,140,717 ) (535,179 ) (2,246,979 ) (561,745 )
Total deferred income tax liabilities (1,968,319 ) (2,196,788 )
Total net deferred income tax assets $ 5,546,910 $ 7,134,788
Deferred income tax assets—current $ 5,058,003 $ 6,089,901
Deferred income tax liabilities—current (205,497 ) (320,832 )
Valuation allowance (2,725,944 ) (3,049,018 )
Net 2,126,562 2,720,051
Deferred income tax assets—noncurrent 9,607,820 11,670,480
Deferred income tax liabilities—noncurrent (1,762,822 ) (1,875,956 )
Valuation allowance (4,424,650 ) (5,379,787 )
Net 3,420,348 4,414,737
Total net deferred income tax assets $ 5,546,910 $ 7,134,788

c. The Company’s income tax returns for all the fiscal years up to 2003 have been assessed and approved by the R.O.C. Tax Authority.

d. The Company was granted several four or five-year income tax exemption periods with respect to income derived from the expansion of operations. The starting dates of the exemption periods attributable to the expansion in 2002 and 2003 have not yet been decided. The income tax exemption for other periods will expire on December 31, 2012.

e. The Company earns investment tax credits for the amount invested in production equipment, research and development, and employee training.

As of June 30, 2007, the Company’s unused investment tax credit was as follows:

Expiration Year Investment tax credits earned Balance of unused investment tax credits
2007 $ 1,611,785 $ 622,672
2008 6,296,685 6,296,685
2009 2,549,487 2,549,487
2010 1,633,049 1,633,049
2011 1,336,917 1,336,917
Total $ 13,427,923 $ 12,438,810

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f. Under the rules of the Income Tax Law of the R.O.C., net losses can be carried forward for 5 years. As of June 30, 2007, the unutilized accumulated losses were as follows:

Expiration Year Accumulated losses Unutilized accumulated losses
2007 $ 3,773,826 $ 3,773,826
2008 (Transferred in from merger with SiSMC) 2,283 2,283
2009 (Transferred in from merger with SiSMC) 38,925 38,925
Total $ 3,815,034 $ 3,815,034

g. The balance of the Company’s imputation credit accounts as of June 30, 2007 and 2006 were NT$2,112 million and NT$9 million, respectively. The expected creditable ratio for 2006 and the actual creditable ratio for 2005 was 11.88% and 0 %, respectively.

h. The Company’s earnings generated in the year ended December 31, 1997 and prior years have been fully appropriated.

(21) EARNINGS PER SHARE

a. The Company’s capital structure is composed mainly of zero coupon convertible bonds and employee stock options. Therefore, in consideration of such complex structure, the calculated basic and diluted earnings per share for the six-month periods ended June 30, 2007 and 2006, are disclosed as follows:

For the six-month period ended June 30, 2007 — Amount Shares expressed in thousands Earnings per share (NTD)
Income before income tax Net income Income before income tax Net income
Earning per share-basic (NTD)
Income from continuing operations $ 7,144,585 $ 6,369,668 17,777,875 $ 0.40 $ 0.36
Cumulative effect of changes in accounting principles — — — —
Net income $ 7,144,585 $ 6,369,668 $ 0.40 $ 0.36
Effect of dilution
Employee stock options $ — $ — 122,417
Convertible bonds payable 133,258 127,595 516,382
Earning per share-diluted:
Income from continuing operations $ 7,277,843 $ 6,497,263 18,416,674 $ 0.39 $ 0.35
Cumulative effect of changes in accounting principles — — — —
Net income $ 7,277,843 $ 6,497,263 $ 0.39 $ 0.35

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For the six-month period ended June 30, 2006 (retroactively adjusted)
Amount Earnings per share (NTD)
Income before income tax Net income Shares expressed in thousands Income before income tax Net income
Earning per share-basic (NTD)
Income from continuing operations $ 20,880,851 $ 19,526,303 18,382,155 $ 1.13 $ 1.06
Cumulative effect of changes in accounting principles (1,188,515 ) (1,188,515 ) (0.06 ) (0.06 )
Net income $ 19,692,336 $ 18,337,788 $ 1.07 $ 1.00
Effect of dilution
Employee stock options $ — $ — 131,297
Convertible bonds payable (156,606 ) (162,269 ) 516,382
Earning per share-diluted:
Income from continuing operations $ 20,724,245 $ 19,364,034 19,029,834 $ 1.09 $ 1.02
Cumulative effect of changes in accounting principles (1,188,515 ) (1,188,515 ) (0.06 ) (0.06 )
Net income $ 19,535,730 $ 18,175,519 $ 1.03 $ 0.96

b. Pro forma information on earnings as if subsidiaries’ investment in the Company is not treated as treasury stock is set out as follows:

(shares expressed in thousands) For the six month period ended June 30, 2007
Basic Diluted
Net income $ 6,369,668 $ 6,497,263
Weighted-average of shares outstanding:
Beginning balance 17,789,126 17,789,126
Weighted-average shares of exercising employee stock options 10,819 10,819
Dilutive shares of employee stock options accounted for under treasury stock method — 122,417
Dilutive shares issued assuming conversion of bonds — 516,382
Ending balance 17,799,945 18,438,744
Earnings per share
Net income (NTD) $ 0.36 $ 0.35

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| (shares expressed in thousands) | For the six month period ended June 30,
2006 (retroactively adjusted) — Basic | Diluted | | |
| --- | --- | --- | --- | --- |
| Net income | $ 18,337,788 | $ | 18,175,519 | |
| Weighted-average of shares outstanding: | | | | |
| Beginning balance | 18,852,636 | | 18,852,636 | |
| Increase in capital through 2006 retained earnings and additional paid-in capital at proportion of 1.3% | 234,604 | | 234,604 | |
| Purchase of 1,243,171 thousand shares of treasury stock from January 1 to June 30, 2006 | (623,210 | ) | (623,210 | ) |
| Weighted-average shares of exercising employee stock options | 30,859 | | 30,859 | |
| Dilutive shares of employee stock options accounted for under treasury stock method | — | | 131,297 | |
| Dilutive shares issued assuming conversion of bonds | — | | 516,382 | |
| Ending balance | 18,494,889 | | 19,142,568 | |
| Earnings per share | | | | |
| Net income (NTD) | $ 0.99 | $ | 0.95 | |

  1. RELATED PARTY TRANSACTIONS

(1) Name and Relationship of Related Parties

Name of related parties Relationship with the Company
UMC GROUP (USA) (UMC-USA) Equity Investee
UNITED MICROELECTRONICS (EUROPE) B.V. Equity Investee
UMC CAPITAL CORP. Equity Investee
UNITED MICROELECTRONICS CORP. (SAMOA) Equity Investee
UMCI LTD. Equity Investee
UMC JAPAN (UMCJ) Equity Investee
UNITECH CAPITAL INC. Equity Investee
MEGA MISSION LIMITED PARTNERSHIP Equity Investee
MTIC HOLDINGS PTE. LTD. Equity Investee
FORTUNE VENTURE CAPITAL CORP. Equity Investee
HSUN CHIEH INVESTMENT CO., LTD. Equity Investee
UNITED MICRODISPLAY OPTRONICS CORP. Equity Investee
HOLTEK SEMICONDUCTOR INC. (HOLTEK) Equity Investee

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Name of related parties Relationship with the Company
ITE TECH. INC. Equity Investee
AMIC TECHNOLOGY CORP. Equity Investee
PACIFIC VENTURE CAPITAL CO., LTD. Equity Investee
XGI TECHNOLOGY INC. Equity Investee
TLC CAPITAL CO., LTD. Equity Investee
HIGHLINK TECHNOLOGY CORP. (merged into EPISTAR CORP. since March 2007) Equity Investee
NEXPOWER TECHNOLOGY CORP. Equity Investee
SILICON INTEGRATED SYSTEMS CORP. The Company’s director
UNITRUTH INVESTMENT CORP. Subsidiary’s equity investee
UWAVE TECHNOLOGY CORP. Subsidiary’s equity investee
UCA TECHNOLOGY INC. Subsidiary’s equity investee
AFA TECHNOLOGY, INC. Subsidiary’s equity investee
STAR SEMICONDUCTOR CORP. (No longer an subsidiary’s equity investee since March 2007) Subsidiary’s equity investee
USBEST TECHNOLOGY INC. (No longer an subsidiary’s equity investee since February 2007) Subsidiary’s equity investee
SMEDIA TECHNOLOGY CORP. Subsidiary’s equity investee
U-MEDIA COMMUNICATIONS, INC. (No longer an subsidiary’s equity investee since May 2007) Subsidiary’s equity investee
CRYSTAL MEDIA INC. Subsidiary’s equity investee
MOBILE DEVICES INC. Subsidiary’s equity investee
CHIP ADVANCED TECHNOLOGY INC. Same chairman with the Company’s subsidiary

(2) Significant Related Party Transactions

a. Operating revenues

For the six-month period ended June 30, — 2007 2006
Amount Percentage Amount Percentage
UMC-USA $ 22,337,422 46 $ 24,239,799 49
Others 5,924,940 13 8,147,730 16
Total $ 28,262,362 59 $ 32,387,529 65

The sales price to the above related parties was determined through mutual agreement based on the market conditions. The collection period for overseas sales to related parties was net 60 days, while the terms for domestic sales were month-end 45~60 days. The collection period for third party overseas sales was net 30~60 days, while the terms for third party domestic sales were month-end 30~60 days.

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b. Notes receivable

As of June 30, — 2007 2006
Amount Percentage Amount Percentage
HOLTEK $ 44,134 93 $ 68,752 93
Others — — 36 —
Total $ 44,134 93 $ 68,788 93

c. Accounts receivable

As of June 30, — 2007 2006
Amount Percentage Amount Percentage
UMC-USA $ 5,113,267 35 $ 5,493,509 41
UME BV 1,401,612 10 1,366,652 10
Others 647,215 4 1,013,730 8
Total 7,162,094 49 7,873,891 59
Less: Allowance for sales returns and discounts (254,897 ) (635,702 )
Less: Allowance for doubtful accounts (587 ) (111,897 )
Net $ 6,906,610 $ 7,126,292

d. Endorsements and guarantees

The Company did not provide any note as endorsement and guarantee for related parties during the six-month period ended June 30, 2007.

As of June 30, 2006, the Company provided notes of endorsement or guarantees on behalf of its subsidiary, UMCJ, totaling NT$2,247 million.

  1. ASSETS PLEDGED AS COLLATERAL

As of June 30, 2007

Amount Party to which asset(s) was pledged Purpose of pledge
Deposit-out $ 620,996 Customs Customs duty
(Time deposit) guarantee

As of June 30, 2006

Amount Party to which asset(s) was pledged Purpose of pledge
Deposit-out $ 520,846 Customs Customs duty
(Time deposit) guarantee

38

  1. COMMITMENTS AND CONTINGENT LIABILITIES

(1) The Company has entered into several patent license agreements and development contracts of intellectual property for a total contract amount of approximately NT$19.5 billion. Royalties and development fees for future years are set NT$5.2 billion as of June 30, 2007.

(2) The Company signed several construction contracts for the expansion of its factory space. As of June 30, 2007, these construction contracts have amounted to approximately NT$5.2 billion and the unpaid portion of the contracts, which was not accrued, was approximately NT$2.2 billion.

(3) The Company entered into several operating lease contracts for land. These renewable operating leases are set to expire in various years through to 2032 and are renewable. Future minimum lease payments under those leases are as follows:

For the year ended December 31, Amount
2007 (3 rd quarter and
thereafter) $ 107,279
2008 213,381
2009 213,014
2010 213,399
2011 213,800
2012 and thereafter 2,015,785
Total $ 2,976,658

(4) The Company entered into several wafer-processing contracts with its principal customers. According to the contracts, the Company shall guarantee processing capacity, while these customers make deposits to the Company.

(5) The Company has entered into contracts for the purchase of materials and masks with certain vendors. As of June 30, 2007, the commitment of these construction contracts has amounted to approximately NT$6.6 billion, and the unpaid portion of the contracts, which was not accrued, was approximately NT$4.7 billion.

(6) On February 15, 2005, the Hsinchu District Prosecutor’s Office conducted a search of the Company’s facilities. On February 18, 2005, the Company’s former Chairman Mr. Robert H.C. Tsao, released a public statement, explaining that its assistance to Hejian Technology Corp. (Hejian) did not involve any investment or technology transfer. Furthermore, from the very beginning there was a verbal indication that, at the proper time, the Company would be compensated appropriately for its assistance, and circumstances permitting, at some time in the future, it will push through the merger between two companies. However, no promise was made by the Company and no written agreement was made and executed. Upon the Company’s request to materialize the said verbal indication by compensating in the form of either cash or equity, the Chairman of the holding company of Hejian offered 15% of the approximately 700 million outstanding shares of the holding company of Hejian in return for the Company’s past assistance and for continued assistance in the future.

39

Immediately after the Company had received such offer, it filed an application with the Investment Commission of the Ministry of Economic Affairs on March 18, 2005 (Ref. No. 94-Lian-Tung-Tzu-0222), for their executive guidance for the successful transfer of said shares to the Company. The shareholders meeting dated June 13, 2005 resolved that to the extent permitted by law the Company shall try to get the 15% of the outstanding shares offered by the holding company of Hejian as an asset of the Company. The holding company of Hejian offered 106 million shares of its outstanding common shares in return for the Company’s assistance. The holding company of Hejian has put all such shares in escrow. The Company was informed of such escrow on August 4, 2006. The subscription price per share of the holding company of Hejian in the last offering was US$1.1. Therefore, the total market value of the said shares is worth more than US$110 million. However, the Company may not acquire the ownership of nor exercise the rights of the said shares with any potential stock dividend or cash dividend distributed in the future until the ROC laws and regulations allow the Company to acquire and exercise. In the event that any stock dividend or cash dividend is distributed, the Company’s stake in the holding company of Hejian will accumulate accordingly.

In April 2005, the Company’s former Chairman Mr. Robert H.C. Tsao was personally fined with in the aggregate amount of NT$3 million by the Financial Supervisory Commission, Executive Yuan, R.O.C. (ROC FSC) for failure to disclose material information relating to Hejian in accordance with applicable rules. As a result of the imposition of the fines by the ROC FSC, the Company was also fined in the amount of NT$30,000 by Taiwan Stock Exchange (TSE) for the alleged non-compliance with the disclosure rules in relation to the material information. The Company and its former Chairman Mr. Robert H.C. Tsao have filed for administrative appeal and reconsideration with the Executive Yuan, R.O.C. and TSE, respectively. Mr. Robert H.C. Tsao’s administrative appeal was dismissed by the Execution Yuan, R.O.C. on February 21, 2006 and the ROC FSC transferred the case against Mr. Robert H.C. Tsao to the Administrative Enforcement Agency for enforcement of the fine. Mr. Robert H.C. Tsao has filed an administrative action against the ROC FSC with Taipei High Administrative Court on April 14, 2006. As of June 30, 2007, the result of such reconsideration and administrative action has not been finalized. The case is being processed in Taipei High Administrative Court.

For the Company’s assistance to Hejian Technology Corp., the Company’s former Chairman Mr. Robert H.C. Tsao, former Vice Chairman Mr. John Hsuan, and Mr. Duen-Chian Cheng, the General Manager of Fortune Venture Capital Corp., which is 99.99% owned by the Company, were indicted for violating the Business Entity Accounting Law and breach of trust under the Criminal Law by Hsinchu District Court’s Prosecutor’s Office on January 9, 2006. Mr. Robert H.C. Tsao and Mr. John Hsuan had officially resigned from their positions of the Company’s Chairman, Vice Chairman and directors prior to the announcement of the prosecution; for this reason, at the time of the prosecution, Mr. Robert H.C. Tsao and Mr. John Hsuan no longer served as the Company’s directors and had not executed their duties as the Company’s Chairman and Vice Chairman. In the future, if a guilty judgment is pronounced by the court, such consequences would be Mr. Robert H.C. Tsao, Mr. John Hsuan and Mr. Duen-Chian Cheng’s personal concerns only; the Company would not be subject to indictment regarding this case.

40

On February 15, 2006, the Company was fined in the amount of NT$5 million for unauthorized investment activities in Mainland China, implicating violation of Article 35 of the Act “Governing Relations Between Peoples of the Taiwan Area and the Mainland Area” by the R.O.C. Ministry of Economic Affairs (MOEA). However, as the Company believes it was illegally and improperly fined, the Company had filed an administrative appeal against MOEA to the Executive Yuan on March 16, 2006. On October 19, 2006, Executive Yuan denied the administrative appeal filed by UMC. UMC had filed an administrative litigation case against MOEA on December 8, 2006. Taipei High Administrative Court announced and reversed MOEA’s administrative sanction on July 19, 2007. As of the reporting date, the Company is not aware whether MOEA has had an appeal against the Company.

  1. SIGNIFICANT DISASTER LOSS

None.

  1. SIGNIFICANT SUBSEQUENT EVENT

On July 17, 2007, the Company cancelled 192 million shares of treasury stocks, which were bought back during the period from March 24, 2004 to May 23, 2004 for transfer to employees.

  1. OTHERS

(1) Certain comparative amounts have been reclassified to conform to the current year’s presentation.

(2) Financial risk management objectives and policies

The Company’s principal financial instruments, other than derivatives, is comprise of cash and cash equivalents, common stock, preferred stock, convertible bonds, open-end funds, bank loans, and bonds payable. The main purpose of these financial instruments is to manage financing for the Company’s operations. The Company also holds various other financial assets and liabilities such as accounts receivable and accounts payable, which arise directly from its operations.

The Company also enters into derivative transactions, including credit-link deposits, interest rate swaps and forward currency contracts. The purpose of these derivative transactions is to mitigate interest rate risk and foreign currency exchange risks arising from the Company’s operations and financing activities.

The main risks arising from the Company’s financial instruments include cash flow interest rate risk, foreign currency risk, commodity price risk, credit risk, and liquidity risk.

41

Cash flow interest rate risk

The Company utilizes interest rate swap agreements to avoid its cash flow interest rate risk on its counter-floating rate of unsecured domestic bonds issued during the period from May 21 to June 24, 2003. The periods of the interest rate swap agreements are the same as those of the domestic bonds, which are five and seven years. The floating rate is reset annually.

Foreign currency risk

The Company has foreign currency risk arising from purchases or sales. The Company utilizes spot or forward contracts to avoid foreign currency risk. The Company buys or sells the same amount of foreign currency with hedged through forward hedging items for contracts. In principal, the Company does not carry out any forward contracts for uncertain commitments.

Commodity price risk

The Company’s exposure to commodity price risk is minimal.

Credit risk

The Company trades only with established and creditworthy third parties. It is the Company’s policy that all customers who wish to trade on credit terms are subject to credit verification procedures. In addition, receivable balances are monitored on an ongoing basis, which consequently minimizes the Company’s exposure to bad debts.

With respect to credit risk arising from the other financial assets of the Company, which are comprised of cash and cash equivalents, available-for-sale financial assets and certain derivative instruments, the Company’s exposure to credit risk arising from the default of counter-parties is limited to the carrying amount of these instruments.

Although the Company trades only with established third parties, it will request collateral to be provided by third parties with less favorable financial positions.

Liquidity risk

The Company’s objective is to maintain a balance of funding continuity and flexibility through the use of financial instruments such as cash and cash equivalents, bank loans and bonds.

42

(3) Information of financial instruments

a. Fair value of financial instruments

As of June 30, — 2007 2006
Financial Assets Book Value Fair Value Book Value Fair Value
Non-derivative
Cash and cash equivalents $ 77,057,682 $ 77,057,682 $ 90,049,580 $ 90,049,580
Financial assets at fair value through profit or loss, current 7,797,358 7,797,358 1,506,063 1,506,063
Held-to-maturity financial assets, current 200,000 200,000 779,456 779,456
Notes and accounts receivable 14,603,106 14,603,106 13,278,696 13,278,696
Available-for-sale financial assets, noncurrent 46,727,005 46,727,005 37,864,803 37,864,803
Held-to-maturity financial assets, noncurrent — — 200,000 200,000
Financial assets measured at cost, noncurrent 2,321,538 — 2,265,728 —
Long-term investments accounted for under the equity method 41,329,192 42,940,292 33,261,799 39,096,736
Prepayment for long-term investments 247,712 — — —
Deposits-out 642,214 642,214 542,121 542,121
Financial Liabilities
Non-derivative
Payables $ 30,929,878 $ 30,929,878 $ 23,575,752 $ 23,575,752
Capacity deposits (current portion) 174,020 174,020 892,482 892,482
Bonds payable (current portion included) 30,517,418 30,598,801 40,592,150 41,303,619
Derivative
Interest rate swaps $ 423,226 $ 423,226 $ 633,039 $ 633,039
Derivatives embedded in exchangeable bonds — — 555,251 555,251

43

b. The methods and assumptions used to measure the fair value of financial instruments are as follows:

i. The book values of short-term financial instruments approximate their fair value due to their short maturities. Short-term financial instruments include cash and cash equivalents, notes receivable, accounts receivable, current portion of capacity deposits, and payables.

ii. The fair value of financial assets at fair value through profit or loss and available-for-sale financial assets are based on the quoted market prices.

iii. The fair value of held-to-maturity financial assets and long-term investments accounted for under equity method are based on the quoted market prices. If market prices are unavailable, the Company estimates the fair value based on the book values.

iv. The fair value of financial assets measured at cost and prepayment for long-term investments are unable to estimate since there is no active market in trading those unlisted investments.

v. The fair value of deposits-out is based on their book value since the deposit periods are principally within one year and renewed upon maturity.

vi. The fair value of bonds payable is determined by the market price.

vii. The fair value of derivative financial instruments is based on the amount the Company expects to receive (positive) or to pay (negative) assuming that the contracts are settled in advance at the balance sheet date.

c. The fair value of the Company’s financial instruments is determined by the quoted prices in active markets, or if the market for a financial instrument is not active, the Company establishes fair value by using a valuation technique:

Non-derivative Financial Instruments Active Market Quotation — 2007.06.30 2006.06.30 Valuation Technique — 2007.06.30 2006.06.30
Financial assets
Financial assets at fair value through profit or loss, current $ 7,797,358 $ 1,506,063 $ — $ —
Available-for-sale financial assets, noncurrent 46,727,005 37,864,803 — —

44

Non-derivative Financial Instruments Active Market Quotation — 2007.06.30 2006.06.30 Valuation Technique — 2007.06.30 2006.06.30
Financial assets
Long-term investments accounted for under the equity method $ 42,940,292 $ 39,096,736 $ — $ —
Financial liabilities
Bonds payable (current portion included) 30,598,801 41,303,619 — —
Derivative Financial Instruments
Financial liabilities
Interest rate swaps $ — $ — $ 423,226 $ 633,039
Derivatives embedded in exchangeable bonds — — — 555,251

d. The Company recognized gains in NT$341 million and NT$99 million arising from the changes in fair value of financial liabilities at fair value through profit or loss for the six-month periods ended June 30, 2007 and 2006, respectively.

e. The Company’s financial liabilities with cash flow interest rate risk exposure as of June 30, 2007 and 2006 amounted to NT$423 million and NT$633 million, respectively.

f. During the six-month periods ended June 30, 2007 and 2006, total interest revenue for financial assets or liabilities that are not at fair value through profit or loss were NT$690 million and NT$710 million, respectively, while interest expense for the six-month periods ended June 30, 2007 and 2006 each amounted to NT$144 million and NT$397 million, respectively.

(4) The Company and its subsidiary, UMC JAPAN, held credit-linked deposits and repackage bonds recognized as held-to-maturity financial assets for the earning of interest income. The details are disclosed as follows:

45

a. Principal amount in original currency

As of June 30, 2007

The Company

Credit-linked deposits and repackage bonds referenced to Amount Due Date
ADVANCED SEMICONDUCTOR ENGINEERING INC. European Convertible Bonds and Loans NTD 200 million 2007.09.25

As of June 30, 2006

The Company

Credit-linked deposits and repackage bonds referenced to Amount Due Date
SILICONWARE PRECISION INDUSTRIES CO., LTD. European Convertible Bonds and Loans NTD 400 million 2007.02.05
SILICONWARE PRECISION INDUSTRIES CO., LTD. European Convertible Bonds and Loans NTD 200 million 2007.02.05
UMC JAPAN European Convertible Bonds JPY 640 million 2007.03.28
ADVANCED SEMICONDUCTOR ENGINEERING INC. European Convertible Bonds and Loans NTD 200 million 2007.09.25

UMC JAPAN

Credit-linked deposits and repackage bonds referenced to Amount Due Date
UMC JAPAN European Convertible Bonds JPY 500 million 2007.03.29

b. Credit risk

The counterparties of the above investments are major international financial institutions. The repayment in full of these investments is subject to the non-occurrence of one or more credit events, which are referenced to the entities’ fulfillment of their own obligations as well as repayment of their corporate bonds. Upon the occurrence of one or more of such credit events, the Company and its subsidiary, UMC JAPAN, may receive less than the full amount of these investments or nothing. The Company and its subsidiary, UMC JAPAN, have selected reference entities with high credit ratings to minimize the credit risk.

c. Liquidity risk

Early withdrawal is not allowed for the above investments unless called by the issuer. However, the anticipated liquidity risk is low since most of the investments will either have matured within one year, or are relatively liquid in the secondary market.

d. Market risk

There is no market risk for the above investments except for the fluctuations in the exchange rates of US Dollars and Japanese Yen to NT Dollars at the balance sheet date and the settlement date.

46

(5) The Company and its subsidiary, UMC JAPAN, entered into interest rate swap and forward contracts for hedging the interest rate risk arising from the counter-floating rate of domestic bonds and for hedging the exchange rate risk arising from the net assets or liabilities denominated in foreign currency. The hedging strategy was developed with the objective to reduce the market risk for non-trading purpose. The relevant information on the derivative financial instruments entered into by the Company is as follows:

a. The Company utilized interest rate swap agreements to hedge its interest rate risk on its counter-floating rate of unsecured domestic bonds issued during the period from May 21 to June 24, 2003. The periods of the interest rate swap agreements are the same as those of the domestic bonds, which are five and seven years. The floating rate is reset annually. The details of interest rate swap agreements are summarized as follows:

As of June 30, 2007 and 2006, the Company had the following interest rate swap agreements in effect:

Notional Amount Contract Period Interest Rate Received Interest Rate Paid
NT$7,500 million May 21, 2003 to June 24, 2008 4.0% minus USD 12-Month LIBOR 1.52 %
NT$7,500 million May 21, 2003 to June 24, 2010 4.3% minus USD 12-Month LIBOR 1.48 %

b. The details of forward contracts entered into by the Company and its subsidiary, UMC JAPAN, are summarized as follows:

The Company and its subsidiary, UMC JAPAN, did not hold any forward contracts as of June 30, 2007.

The Company did not hold any forward contracts as of June 30, 2006.

UMC JAPAN

Type Notional Amount Contract Period
Forward contracts Sell USD 3 million June 14, 2006 to July 31, 2006

c. Transaction risk

(a) Credit risk

There is no significant credit risk exposure with respect to the above transactions as the counter-parties are reputable financial institutions with good global standing.

(b) Liquidity and cash flow risk

The cash flow requirements on the interest rate swap agreements are limited to the net interest payables or receivables arising from the differences in the swap rates. The cash flow requirements on forward contracts are limited to the net difference between the forward and spot rates at the settlement date. Therefore, no significant cash flow risk is anticipated since the working capital is sufficient to meet the cash flow requirements.

47

(c) Market risk

Interest rate swap agreements and forward contracts are intended for hedging purposes. Gains or losses arising from the fluctuations in interest rates and exchange rates are likely to be offset against the gains or losses from the hedged items. As a result, no significant exposure to market risk is anticipated.

d. The presentation of derivative financial instruments on financial statements

The Company

As of June 30, 2007 and 2006, the Company’s interest rate swap agreements were classified as current liabilities amounting to NT$423 million and NT$633 million, respectively.

UMC JAPAN

As of June 30, 2006, the balance of current liabilities arising from forward contracts was JPY2 million and related exchange loss of JPY7 million and exchange gain of JPY24 million were recorded under non-operating loss and revenue for the six-month periods ended June 30, 2007 and 2006, respectively.

  1. ADDITIONAL DISCLOSURES

(1) The following are additional disclosures for the Company and its affiliates as required by the ROC Securities and Futures Bureau:

a. Financing provided to others for the six-month period ended June 30, 2007: please refer to Attachment 1.

b. Endorsement/Guarantee provided to others for the six-month period ended June 30, 2007: please refer to Attachment 2.

c. Securities held as of June 30, 2007: please refer to Attachment 3.

d. Individual securities acquired or disposed of with accumulated amount exceeding the lower of NT$100 million or 20 percent of capital stock for the six-month period ended June 30, 2007: please refer to Attachment 4.

e. Acquisition of individual real estate with amount exceeding the lower of NT$100 million or 20 percent of capital stock for the six-month period ended June 30, 2007: please refer to Attachment 5.

f. Disposal of individual real estate with amount exceeding the lower of NT$100 million or 20 percent of capital stock for the six-month period ended June 30, 2007: please refer to Attachment 6.

48

g. Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the six-month period ended June 30, 2007: please refer to Attachment 7.

h. Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of June 30, 2007: please refer to Attachment 8.

i. Names, locations and related information of investees as of June 30, 2007: please refer to Attachment 9.

j. Financial instruments and derivative transactions: please refer to Note 10.

(2) Investment in Mainland China

None.

49

ATTACHMENT 1 (Financing provided to others for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

No.
None

50

ATTACHMENT 2 (Endorsement/Guarantee provided to others for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

No.
None

51

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Convertible bonds TATUNG CORP. — Financial assets at fair value through profit or loss, current 402 $ 52,260 — $ 52,260 None
Convertible bonds CHANG WAH ELECTRONMATERIALS INC. — Financial assets at fair value through profit or loss, current 500 58,750 — 58,750 None
Stock PROMOS TECHNOLOGIES INC. — Financial assets at fair value through profit or loss, current 471,400 6,505,320 7.67 6,505,320 None
Stock L&K ENGINEERING CO., LTD. — Financial assets at fair value through profit or loss, current 1,683 101,664 0.99 101,664 None
Stock MICRONAS SEMICONDUCTOR HOLDING AG — Financial assets at fair value through profit or loss, current 280 182,711 0.94 182,711 None
Stock ACTION ELECTRONICS CO., LTD. — Financial assets at fair value through profit or loss, current 16,270 335,972 0.44 335,972 None
Stock FIRICH ENTERPRISES CO.,LTD. — Financial assets at fair value through profit or loss, current 122 92,893 0.22 92,893 None
Stock CHINA DEVELOPMENT FINANCIAL HOLDING CORP. — Financial assets at fair value through profit or loss, current 23,538 335,419 0.21 335,419 None
Stock YANG MING MARINE TRANSPORT CORP. — Financial assets at fair value through profit or loss, current 3,254 82,980 0.14 82,980 None
Stock SILICONWARE PRECISION INDUSTRIES CO., LTD. — Financial assets at fair value through profit or loss, current 708 49,389 0.03 49,389 None
Stock UMC GROUP (USA) Investee company Long-term investments accounted for under the equity method 16,438 982,297 100.00 982,297 None
Stock UNITED MICROELECTRONICS (EUROPE) B.V. Investee company Long-term investments accounted for under the equity method 9 295,851 100.00 288,237 None
Stock UMC CAPITAL CORP. Investee company Long-term investments accounted for under the equity method 124,000 3,969,316 100.00 3,969,316 None
Stock UNITED MICROELECTRONICS CORP. (SAMOA) Investee company Long-term investments accounted for under the equity method 280 5,246 100.00 5,246 None
Stock UMCI LTD. Investee company Long-term investments accounted for under the equity method 880,006 98 100.00 98 None
Stock TLC CAPITAL CO., LTD. Investee company Long-term investments accounted for under the equity method 600,000 8,328,633 100.00 8,328,633 None
Stock FORTUNE VENTURE CAPITAL CORP. Investee company Long-term investments accounted for under the equity method 499,994 11,417,688 99.99 12,003,717 None
Stock UNITED MICRODISPLAY OPTRONICS CORP. Investee company Long-term investments accounted for under the equity method 84,093 257,487 85.24 257,487 None

52

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock UMC JAPAN Investee company Long-term investments accounted for under the equity method 496 $ 5,578,444 50.09 $ 2,634,102 None
Stock PACIFIC VENTURE CAPITAL CO., LTD. Investee company Long-term investments accounted for under the equity method 30,000 127,379 49.99 142,144 None
Stock MTIC HOLDINGS PTE LTD. Investee company Long-term investments accounted for under the equity method 4,000 78,805 49.94 78,805 None
Fund MEGA MISSION LIMITED PARTNERSHIP Investee company Long-term investments accounted for under the equity method — 2,551,817 45.00 2,551,817 None
Stock UNITECH CAPITAL INC. Investee company Long-term investments accounted for under the equity method 21,000 1,122,669 42.00 1,122,669 None
Stock NEXPOWER TECHNOLOGY CORP. Investee company Long-term investments accounted for under the equity method 29,330 295,176 36.66 299,098 None
Stock HSUN CHIEH INVESTMENT CO., LTD. Investee company Long-term investments accounted for under the equity method 33,624 4,943,314 36.49 4,813,451 None
Stock HOLTEK SEMICONDUCTOR INC. Investee company Long-term investments accounted for under the equity method 49,439 903,961 23.12 3,287,719 None
Stock ITE TECH. INC. Investee company Long-term investments accounted for under the equity method 24,229 380,738 21.62 2,059,496 None
Stock XGI TECHNOLOGY INC. Investee company Long-term investments accounted for under the equity method 5,868 40,619 16.44 40,619 None
Stock AMIC TECHNOLOGY CORP. Investee company Long-term investments accounted for under the equity method 16,200 49,654 11.82 75,341 None
Stock UNIMICRON TECHNOLOGY CORP. — Available-for-sale financial assets, noncurrent 202,367 10,199,274 19.89 10,199,274 None
Stock FARADAY TECHNOLOGY CORP. — Available-for-sale financial assets, noncurrent 55,611 7,312,904 17.00 7,312,904 None
Stock UNITED FU SHEN CHEN TECHNOLOGY CORP. — Available-for-sale financial assets, noncurrent 18,460 134,390 16.60 134,390 None
Stock SILICON INTEGRATED SYSTEMS CORP. The Company’s director Available-for-sale financial assets, noncurrent 228,956 4,212,788 16.26 4,212,788 None
Stock NOVATEK MICROELECTRONICS CORP. — Available-for-sale financial assets, noncurrent 60,073 10,332,490 11.53 10,332,490 None
Stock C-COM CORP. — Available-for-sale financial assets, noncurrent 3,083 27,715 4.40 27,715 None
Stock SPRINGSOFT, INC. — Available-for-sale financial assets, noncurrent 8,323 536,802 4.20 536,802 None

53

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock CHIPBOND TECHNOLOGY CORP. — Available-for-sale financial assets, noncurrent 12,330 $ 580,114 4.15 $ 580,114 None
Stock EPISTAR CORP. — Available-for-sale financial assets, noncurrent 18,969 2,551,289 3.61 2,551,289 None
Stock KING YUAN ELECTRONICS CO., LTD. — Available-for-sale financial assets, noncurrent 35,008 983,723 3.21 983,723 None
Stock BILLIONTON SYSTEMS INC. — Available-for-sale financial assets, noncurrent 2,048 29,079 2.63 29,079 None
Stock MEDIATEK INC. — Available-for-sale financial assets, noncurrent 13,910 7,122,175 1.44 7,122,175 None
Stock TOPOINT TECHNOLOGY CO., LTD. — Available-for-sale financial assets, noncurrent 841 73,142 1.07 73,142 None
Stock MEGA FINANCIAL HOLDING COMPANY — Available-for-sale financial assets, noncurrent 95,577 2,126,584 0.86 2,126,584 None
Stock AU OPTRONICS CORP. — Available-for-sale financial assets, noncurrent 3,650 204,406 0.05 204,406 None
Stock HON HAI PRECISION INDUSTRY CO., LTD. — Available-for-sale financial assets, noncurrent 1,057 300,130 0.02 300,130 None
Stock PIXTECH, INC. — Financial assets measured at cost, noncurrent 9,883 — 17.63 note None
Stock UNITED INDUSTRIAL GASES CO., LTD. — Financial assets measured at cost, noncurrent 13,185 146,250 7.80 note None
Stock INDUSTRIAL BANK OF TAIWAN CORP. — Financial assets measured at cost, noncurrent 118,303 1,139,196 4.95 note None
Stock SUBTRON TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 13,593 210,110 4.68 note None
Stock TECO NANOTECH CO. LTD. — Financial assets measured at cost, noncurrent 9,001 — 3.73 note None
Stock SINO SWEARINGEN AIRCRAFT CORPORATION — Financial assets measured at cost, noncurrent 1,124 — 1.50 note None
Stock TAIWAN AEROSPACE CORP. — Financial assets measured at cost, noncurrent 903 — 0.17 note None
Fund PACIFIC TECHNOLOGY PARTNERS, L.P. — Financial assets measured at cost, noncurrent — 197,183 — N/A None
Fund PACIFIC UNITED TECHNOLOGY, L.P. — Financial assets measured at cost, noncurrent — 161,154 — N/A None

54

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock-Preferred stock TAIWAN HIGH SPEED RAIL CORP. — Financial assets measured at cost, noncurrent 30,000 $ 300,000 — N/A None
Stock-Preferred stock MTIC HOLDINGS PTE LTD. — Financial assets measured at cost, noncurrent 4,000 85,080 — N/A None
Stock-Preferred stock TONBU, INC. — Financial assets measured at cost, noncurrent 938 — — N/A None
Stock-Preferred stock AETAS TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 781 82,565 — N/A None
Fund VIETNAM INFRASTRUCTURE LTD. — Prepayment for long-term investments 5,000 166,468 — N/A None
Stock-Preferred stock AETAS TECHNOLOGY INC. — Prepayment for long-term investments 769 81,244 — N/A None
FORTUNE VENTURE CAPITAL CORP.
June 30, 2007
Type of securities Name of securities Relationship Financial statement account Units (thousand)/ bonds/shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock UNITRUTH INVESTMENT CORP. Investee company Long-term investments accounted for under the equity method 80,000 $ 822,125 100.00 $ 822,125 None
Stock ANOTO TAIWAN CORP. Investee company Long-term investments accounted for under the equity method 3,920 27,169 49.00 27,169 None
Stock-Preferred stock AEVOE INTERNATIONAL LTD. Investee company Long-term investments accounted for under the equity method 2,500 9,256 44.33 9,256 None
Stock UWAVE TECHNOLOGY CORP. Investee company Long-term investments accounted for under the equity method 10,186 — 44.29 7,185 None
Stock UCA TECHNOLOGY INC. Investee company Long-term investments accounted for under the equity method 11,285 29,180 42.38 19,797 None
Stock WALTOP INTERNATIONAL CORP. Investee company Long-term investments accounted for under the equity method 6,000 88,252 30.00 37,241 None
Stock CRYSTAL MEDIA INC. Investee company Long-term investments accounted for under the equity method 4,493 37,910 25.15 37,910 None
Stock SMEDIA TECHNOLOGY CORP. Investee company Long-term investments accounted for under the equity method 9,045 26,464 23.08 24,899 None
Stock ALLIANCE OPTOTEK CORP. Investee company Long-term investments accounted for under the equity method 3,500 26,734 21.21 19,298 None

55

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

FORTUNE VENTURE CAPITAL CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock AFA TECHNOLOGY, INC. Investee company Long-term investments accounted for under the equity method 6,713 $ 71,699 19.43 $ 59,677 None
Stock HIGH POWER LIGHTING CORP. Investee company Long-term investments accounted for under the equity method 4,525 41,749 18.10 32,517 None
Stock MOBILE DEVICES INC. Investee company Long-term investments accounted for under the equity method 5,713 20,885 17.36 17,851 None
Stock AMIC TECHNOLOGY CORP. Investee of UMC and Fortune Long-term investments accounted for under the equity method 23,405 108,422 17.06 108,422 None
Stock XGI TECHNOLOGY INC. Investee of UMC and Fortune Long-term investments accounted for under the equity method 4,208 23,823 11.81 29,114 None
Stock PIXART IMAGING INC. — Available-for-sale financial assets, noncurrent 13,274 6,517,529 12.70 6,517,529 None
Stock TOPOINT TECHNOLOGY CO., LTD. — Available-for-sale financial assets, noncurrent 1,530 133,106 1.95 133,106 None
Stock AIMTRON TECHNOLOGY, INC. — Available-for-sale financial assets, noncurrent 684 50,067 1.56 50,067 None
Stock EPISTAR CORP. — Available-for-sale financial assets, noncurrent 4,272 574,633 0.82 574,633 None
Stock POWERTECH INDUSTRIAL CO., LTD. — Available-for-sale financial assets, noncurrent 543 48,506 0.59 48,506 None
Stock C SUN MFG LTD. — Available-for-sale financial assets, noncurrent 527 13,305 0.41 13,305 None
Stock CHIPBOND TECHNOLOGY CORP. — Available-for-sale financial assets, noncurrent 790 37,181 0.27 37,181 None
Stock UNITED MICROELECTRONICS CORP. Investor company Available-for-sale financial assets, noncurrent 22,070 438,086 0.12 438,086 None
Stock DAVICOM SEMICONDUCTOR, INC. — Financial assets measured at cost, noncurrent 13,017 132,614 19.83 Note None
Stock CLIENTRON CORP. (formerly BCOM ELECTRONICS INC.) — Financial assets measured at cost, noncurrent 17,675 176,797 19.64 Note None
Stock USBEST TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 3,313 47,897 19.49 Note None
Stock STAR SEMICONDUCTOR CORP. — Financial assets measured at cost, noncurrent 3,838 35,174 18.64 Note None
Stock KUN YUAN TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 7,650 76,500 16.63 Note None

56

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

FORTUNE VENTURE CAPITAL CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock HITOP COMMUNICATIONS CORP. — Financial assets measured at cost, noncurrent 4,340 $ 60,849 16.07 Note None
Stock U-MEDIA COMMUNICATIONS, INC. — Financial assets measured at cost, noncurrent 5,000 15,679 15.60 Note None
Stock LIGHTUNING TECH. INC. — Financial assets measured at cost, noncurrent 2,660 16,663 14.94 Note None
Stock UWIZ TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 4,230 46,953 13.22 Note None
Stock CHIP ADVANCED TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 3,140 22,886 12.99 Note None
Stock VASTVIEW TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 3,360 11,458 11.59 Note None
Stock CION TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 2,268 21,600 11.08 Note None
Stock YAYATECH CO., LTD. — Financial assets measured at cost, noncurrent 1,080 36,180 10.80 Note None
Stock GOLDEN TECHNOLOGY VENTURE CAPITAL INVESTMENT CORP. — Financial assets measured at cost, noncurrent 4,234 41,216 10.67 Note None
Stock AMOD TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 1,060 10,421 10.60 Note None
Stock EXOJET TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 2,300 23,000 10.57 Note None
Stock ADVANCE MATERIALS CORP. — Financial assets measured at cost, noncurrent 11,434 113,017 10.36 Note None
Stock EVERGLORY RESOURCE TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 2,500 21,875 10.23 Note None
Stock NCTU SPRING I TECHNOLOGY VENTURE CAPITAL INVESTMENT CORP. — Financial assets measured at cost, noncurrent 4,284 27,160 10.06 Note None
Stock EXCELLENCE OPTOELECTRONICS INC. — Financial assets measured at cost, noncurrent 8,529 85,291 9.61 Note None
Stock CHANG-YU TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 2,050 55,350 9.49 Note None
Stock ALLEN PRECISION INDUSTRIES CO., LTD. — Financial assets measured at cost, noncurrent 3,000 38,400 9.32 Note None
Stock BCOM ELECTRONICS INC. — Financial assets measured at cost, noncurrent 3,600 43,200 9.00 Note None

57

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

FORTUNE VENTURE CAPITAL CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock ANDES TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 5,000 $ 62,500 7.94 Note None
Stock CHINGIS TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 4,198 37,156 7.83 Note None
Stock JMICRON TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 2,660 47,880 7.71 Note None
Stock SHIN-ETSU HANDOTAI TAIWAN CO., LTD. — Financial assets measured at cost, noncurrent 10,500 105,000 7.00 Note None
Stock ACTI CORP. — Financial assets measured at cost, noncurrent 1,700 17,306 6.85 Note None
Stock RISELINK VENTURE CAPITAL CORP. — Financial assets measured at cost, noncurrent 8,000 76,640 6.67 Note None
Stock NCTU SPRING VENTURE CAPITAL CO., LTD. — Financial assets measured at cost, noncurrent 2,000 7,000 6.28 Note None
Stock SIMPAL ELECTRONICS CO., LTD. — Financial assets measured at cost, noncurrent 6,009 70,179 5.67 Note None
Stock COSMOS TECHNOLOGY VENTURE CAPITAL INVESTMENT CORP. — Financial assets measured at cost, noncurrent 1,742 15,964 5.03 Note None
Stock PARAWIN VENTURE CAPITAL CORP. — Financial assets measured at cost, noncurrent 5,000 41,900 5.00 Note None
Stock MEMOCOM CORP. — Financial assets measured at cost, noncurrent 2,450 16,391 4.90 Note None
Stock LUMITEK CORP. — Financial assets measured at cost, noncurrent 1,750 32,000 4.86 Note None
Stock EE SOLUTIONS, INC. — Financial assets measured at cost, noncurrent 1,300 22,178 4.85 Note None
Stock TRENDCHIP TECHNOLOGIES CORP. — Financial assets measured at cost, noncurrent 1,249 15,086 4.72 Note None
Stock GIGA SOLUTION TECH. CO., LTD. — Financial assets measured at cost, noncurrent 3,930 26,742 4.65 Note None
Stock BEYOND INNOVATION TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 1,183 14,165 4.11 Note None
Stock WAVEPLUS TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 4 — 4.00 Note None
Stock IBT VENTURE CORP. — Financial assets measured at cost, noncurrent 4,569 45,685 3.81 Note None

58

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

FORTUNE VENTURE CAPITAL CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock SUBTRON TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 10,993 $ 132,634 3.78 Note None
Stock HIGH POWER OPTOELECTRONICS, INC. — Financial assets measured at cost, noncurrent 1,500 15,000 3.75 Note None
Stock ANIMATION TECHNOLOGIES INC. — Financial assets measured at cost, noncurrent 1,480 22,200 3.16 Note None
Stock SUPERALLOY INDUSTRIAL CO., LTD. — Financial assets measured at cost, noncurrent 5,000 225,000 3.08 Note None
Stock PRINTECH INTERNATIONAL INC. — Financial assets measured at cost, noncurrent 540 2,457 2.69 Note None
Stock SHENG-HUA VENTURE CAPITAL CORP. — Financial assets measured at cost, noncurrent 750 4,950 2.50 Note None
Stock CHIPSENCE CORP. — Financial assets measured at cost, noncurrent 1,313 9,739 2.03 Note None
Stock ADVANCED CHIP ENGINEERING TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 2,290 24,419 1.84 Note None
Stock TAIMIDE TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 1,500 16,095 1.70 Note None
Stock RALINK TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 1,323 14,828 1.59 Note None
Stock FORTUNE SEMICONDUCTOR CORP. — Financial assets measured at cost, noncurrent 500 8,288 1.32 Note None
Fund CRYSTAL INTERNET VENTURE FUND II(BVI), L.P. — Financial assets measured at cost, noncurrent — 9,342 1.09 N/A None
Stock ARCADIA DESIGN SYSTEMS (TAIWAN), INC. — Financial assets measured at cost, noncurrent 162 — 0.83 Note None
Fund IGLOBE PARTNERS FUND, L.P. — Financial assets measured at cost, noncurrent — 39,051 — N/A None
Stock-Preferred stock AURORA SYSTEMS, INC. — Financial assets measured at cost, noncurrent 5,133 59,317 — N/A None
Stock-Preferred stock ALPHA & OMEGA SEMICONDUCTOR LTD. — Financial assets measured at cost, noncurrent 1,500 46,313 — N/A None

59

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

TLC CAPITAL CO., LTD.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Fund FGIT GLOBAL REALTY & INFRASTRUCTURE FUND — Financial assets at fair value through profit or loss, current 500 $ 4,900 — $ 4,900 None
Stock Y.S. FINANCIAL ADVISORY CO., LTD. Investee company Long-term investments accounted for under the equity method 7,000 70,000 48.95 70,063 None
Stock YUNG LI INVESTMENTS, INC. Investee company Long-term investments accounted for under the equity method 0.20 202,724 37.04 202,724 None
Stock SMEDIA TECHNOLOGY CORP. Investee company Long-term investments accounted for under the equity method 7,084 90,556 18.08 19,502 None
Stock RECHI PRECISION CO., LTD. — Available-for-sale financial assets, noncurrent 20,163 332,697 5.82 332,697 None
Stock TOPOINT TECHNOLOGY CO., LTD. — Available-for-sale financial assets, noncurrent 4,191 364,607 5.33 364,607 None
Stock SERCOMM CORP. — Available-for-sale financial assets, noncurrent 5,841 258,777 4.22 258,777 None
Stock HORIZON SECURITIES CO., LTD. — Available-for-sale financial assets, noncurrent 16,858 158,297 3.92 158,297 None
Stock SIMPLO TECHNOLOGY CO., LTD. — Available-for-sale financial assets, noncurrent 5,000 940,000 3.33 940,000 None
Stock MITAC TECHNOLOGY CORP. — Available-for-sale financial assets, noncurrent 6,000 234,000 1.85 234,000 None
Stock POWERTECH INDUSTRIAL CO., LTD. — Available-for-sale financial assets, noncurrent 1,682 150,177 1.84 150,177 None
Stock EPISTAR CORP. — Available-for-sale financial assets, noncurrent 9,261 1,245,596 1.77 1,245,596 None
Stock FORMOSA EPITAXY INC. — Available-for-sale financial assets, noncurrent 2,509 80,790 1.34 80,790 None
Stock CORETRONIC CORP. — Available-for-sale financial assets, noncurrent 6,007 342,407 0.90 342,407 None
Stock ORIENT SEMICONDUCTOR ELECTRONICS, LTD. — Available-for-sale financial assets, noncurrent 9,264 120,432 0.88 120,432 None
Stock CYNTEC CO., LTD. — Available-for-sale financial assets, noncurrent 1,217 82,999 0.75 82,999 None
Stock INPAQ TECHNOLOGY CO., LTD. — Available-for-sale financial assets, noncurrent 500 32,000 0.74 32,000 None

60

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

TLC CAPITAL CO., LTD.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock GIANT MANUFACTURING CO., LTD. — Available-for-sale financial assets, noncurrent 1,770 $ 106,731 0.63 $ 106,731 None
Stock TATUNG CORP. — Available-for-sale financial assets, noncurrent 26,152 384,434 0.59 384,434 None
Stock HUNG SHENG CONSTRUCTION LTD. — Available-for-sale financial assets, noncurrent 3,300 86,295 0.59 86,295 None
Stock K.S. TERMINALS INC. — Available-for-sale financial assets, noncurrent 501 19,289 0.47 19,289 None
Stock TRIDENT MICROSYSTEMS, INC. — Available-for-sale financial assets, noncurrent 250 150,516 0.44 150,516 None
Stock OPTO TECH CORP. — Available-for-sale financial assets, noncurrent 3,000 83,700 0.38 83,700 None
Stock WINTEK CORP. — Available-for-sale financial assets, noncurrent 2,957 104,973 0.28 104,973 None
Stock SYSTEX CORP. — Available-for-sale financial assets, noncurrent 800 32,960 0.25 32,960 None
Stock YEH-CHIANG TECHNOLOGY CORP. — Available-for-sale financial assets, noncurrent 300 13,500 0.21 13,500 None
Stock SHIHLIN ELECTRIC & ENGINEERING CORP. — Available-for-sale financial assets, noncurrent 950 32,300 0.18 32,300 None
Stock ELAN MICROELECTRONICS CORP. — Available-for-sale financial assets, noncurrent 650 42,120 0.18 42,120 None
Stock TAIWAN FERTILIZER CO., LTD. — Available-for-sale financial assets, noncurrent 1,600 110,400 0.16 110,400 None
Stock PHISON ELECTRONICS CORP. — Available-for-sale financial assets, noncurrent 100 43,300 0.14 43,300 None
Stock MITAC INTERNATIONAL CORP. — Available-for-sale financial assets, noncurrent 1,500 62,550 0.12 62,550 None
Stock CHINA EVERBRIGHT INTERNATIONAL LTD. — Available-for-sale financial assets, noncurrent 3,091 40,392 0.10 40,392 None
Stock TUNG HO STEEL ENTERPRISE CORP. — Available-for-sale financial assets, noncurrent 900 34,650 0.10 34,650 None

61

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

TLC CAPITAL CO., LTD.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock ADVANCED SEMICONDUCTOR ENGINEERING, INC. — Available-for-sale financial assets, noncurrent 3,700 $ 165,575 0.08 $ 165,575 None
Stock YULON MOTOR CO., LTD. — Available-for-sale financial assets, noncurrent 1,000 40,500 0.07 40,500 None
Stock CHINA METAL PRODUCTS CO., LTD. — Available-for-sale financial assets, noncurrent 150 8,295 0.07 8,295 None
Stock NANTEX INDUSTRY.CO.,LTD. — Available-for-sale financial assets, noncurrent 150 4,425 0.06 4,425 None
Stock CHINA DEVELOPMENT FINANCIAL HOLDING CORP. — Available-for-sale financial assets, noncurrent 3,741 53,306 0.03 53,306 None
Stock HANNSTAR DISPLAY CORP. — Available-for-sale financial assets, noncurrent 2,100 17,073 0.03 17,073 None
Stock FAR EASTERN INTERNATIONAL BANK — Available-for-sale financial assets, noncurrent 500 7,500 0.03 7,500 None
Stock SHIN KONG FINANCIAL HOLDING CO., LTD. — Available-for-sale financial assets, noncurrent 1,250 47,812 0.03 47,812 None
Stock CHINATRUST FINANCIAL HOLDING CO., LTD. — Available-for-sale financial assets, noncurrent 1,600 40,960 0.02 40,960 None
Stock INFINEON TECHNOLOGIES AG MUEN ADR — Available-for-sale financial assets, noncurrent 120 65,082 0.02 65,082 None
Stock TA CHONG BANK LTD. — Available-for-sale financial assets, noncurrent 100 1,095 0.01 1,095 None
Stock CATHAY FINANCIAL HOLDING CO., LTD. — Available-for-sale financial assets, noncurrent 750 58,875 0.01 58,875 None
Stock ASIA PACIFIC MICROSYSTEMS, INC. — Financial assets measured at cost, noncurrent 10,000 100,000 8.40 Note None
Stock SUPERALLOY INDUSTRIAL CO., LTD. — Financial assets measured at cost, noncurrent 10,650 479,250 6.55 Note None

62

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITRUTH INVESTMENT CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock WALTOP INTERNATIONAL CORP. Investee company Long-term investments accounted for under the equity method 2,000 $ 29,417 10.00 $ 12,414 None
Stock CRYSTAL MEDIA INC. Investee company Long-term investments accounted for under the equity method 1,587 13,390 8.88 13,390 None
Stock ALLIANCE OPTOTEK CORP. Investee company Long-term investments accounted for under the equity method 1,300 9,930 7.88 7,168 None
Stock SMEDIA TECHNOLOGY CORP. Investee company Long-term investments accounted for under the equity method 2,570 13,943 6.56 7,074 None
Stock UCA TECHNOLOGY INC. Investee company Long-term investments accounted for under the equity method 1,585 5,999 5.95 2,781 None
Stock HIGH POWER LIGHTING CORP. Investee company Long-term investments accounted for under the equity method 1,225 11,302 4.90 8,803 None
Stock UWAVE TECHNOLOGY CORP. Investee company Long-term investments accounted for under the equity method 1,000 — 4.35 705 None
Stock MOBILE DEVICES INC. Investee company Long-term investments accounted for under the equity method 1,250 3,906 3.80 3,906 None
Stock XGI TECHNOLOGY INC. Investee of UMC and Fortune Long-term investments accounted for under the equity method 1,179 8,158 3.31 8,158 None
Stock AFA TECHNOLOGY, INC. Investee company Long-term investments accounted for under the equity method 1,000 8,890 2.89 8,890 None
Stock TOPOINT TECHNOLOGY CO., LTD. — Available-for-sale financial assets, noncurrent 840 73,141 1.07 73,141 None
Stock POWERTECH INDUSTRIAL CO., LTD. — Available-for-sale financial assets, noncurrent 634 56,591 0.69 56,591 None
Stock AMOD TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 930 7,920 9.30 Note None
Stock EXCELLENCE OPTOELECTRONICS INC. — Financial assets measured at cost, noncurrent 6,374 63,739 7.18 Note None
Stock-Preferred stock ALLEN PRECISION INDUSTRIES CO., LTD. — Financial assets measured at cost, noncurrent 2,000 20,000 6.21 N/A None
Stock VASTVIEW TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 1,748 25,850 6.03 Note None
Stock CHIP ADVANCED TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 1,386 3,059 5.73 Note None
Stock ADVANCE MATERIALS CORP. — Financial assets measured at cost, noncurrent 5,637 62,427 5.11 Note None

63

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITRUTH INVESTMENT CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock EVERGLORY RESOURCE TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 1,200 $ 10,500 4.91 Note None
Stock YAYATECH CO., LTD. — Financial assets measured at cost, noncurrent 490 16,415 4.90 Note None
Stock EE SOLUTIONS, INC. — Financial assets measured at cost, noncurrent 1,300 14,755 4.85 Note None
Stock LIGHTUNING TECH. INC. — Financial assets measured at cost, noncurrent 840 5,262 4.72 Note None
Stock CHINGIS TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 2,518 31,218 4.70 Note None
Stock UWIZ TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 1,470 16,317 4.59 Note None
Stock TRENDCHIP TECHNOLOGIES CORP. — Financial assets measured at cost, noncurrent 1,138 13,747 4.30 Note None
Stock EXOJET TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 850 8,500 3.91 Note None
Stock U-MEDIA COMMUNICATIONS, INC. — Financial assets measured at cost, noncurrent 1,250 3,920 3.90 Note None
Stock JMICRON TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 1,340 8,844 3.88 Note None
Stock BCOM ELECTRONICS INC. — Financial assets measured at cost, noncurrent 1,495 17,941 3.74 Note None
Stock ACTI CORP. — Financial assets measured at cost, noncurrent 740 11,100 2.98 Note None
Stock MEMOCOM CORP. — Financial assets measured at cost, noncurrent 1,390 9,302 2.78 Note None
Stock PRINTECH INTERNATIONAL INC. — Financial assets measured at cost, noncurrent 540 2,457 2.69 Note None
Stock LUMITEK CORP. — Financial assets measured at cost, noncurrent 750 13,714 2.08 Note None
Stock RALINK TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 1,300 14,570 1.56 Note None
Stock FORTUNE SEMICONDUCTOR CORP. — Financial assets measured at cost, noncurrent 533 6,947 1.41 Note None

64

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITRUTH INVESTMENT CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock CHANG-YU TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 300 $ 8,100 1.39 Note None
Stock GIGA SOLUTION TECH. CO., LTD. — Financial assets measured at cost, noncurrent 1,131 7,698 1.34 Note None
Stock STAR SEMICONDUCTOR CORP. — Financial assets measured at cost, noncurrent 260 2,193 1.26 Note None
Stock HIGH POWER OPTOELECTRONICS, INC. — Financial assets measured at cost, noncurrent 500 5,000 1.25 Note None
Stock CHIPSENCE CORP. — Financial assets measured at cost, noncurrent 682 5,064 1.05 Note None
Stock SUPERALLOY INDUSTRIAL CO., LTD. — Financial assets measured at cost, noncurrent 1,600 72,000 0.98 Note None
UMC CAPITAL CORP.
June 30, 2007
Type of securities Name of securities Relationship Financial statement account Units (thousand)/ bonds/shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock UMC CAPITAL (USA) Investee company Long-term investments accounted for under the equity method 200 USD 343 100.00 USD 343 None
Stock ECP VITA LTD. Investee company Long-term investments accounted for under the equity method 1,000 USD 1,733 100.00 USD 1,733 None
Stock-Preferred stock ACHIEVE MADE INTERNATIONAL LTD. Investee company Long-term investments accounted for under the equity method 508 USD 781 43.29 USD 247 None
Fund UC FUND II Investee company Long-term investments accounted for under the equity method 5,000 USD 7,684 35.45 USD 7,684 None
Stock-Preferred stock PARADE TECHNOLOGIES, LTD. Investee company Long-term investments accounted for under the equity method 3,125 USD 1,459 23.30 USD 556 None
Stock SPREADTRUM COMMUNICATIONS, INC. — Available-for-sale financial assets, noncurrent 550 USD 7,984 0.44 USD 7,984 None
Stock PATENTOP, LTD. — Financial assets measured at cost, noncurrent 720 — 18.00 Note None
Stock CIPHERMAX, INC. (formerly MAXXAN SYSTEMS, INC.) — Financial assets measured at cost, noncurrent 95 USD 1,281 — Note None
Stock-Preferred stock AICENT, INC. — Financial assets measured at cost, noncurrent 2,000 USD 1,000 — N/A None

65

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UMC CAPITAL CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock SILICON 7, INC. — Financial assets measured at cost, noncurrent 1,866 USD 2,000 — Note None
Stock-Preferred stock GCT SEMICONDUCTOR, INC. — Financial assets measured at cost, noncurrent 1,571 USD 1,000 — N/A None
Stock-Preferred stock INTELLON CORP. — Financial assets measured at cost, noncurrent 5,481 USD 4,653 — N/A None
Stock-Preferred stock FORTEMEDIA, INC. — Financial assets measured at cost, noncurrent 11,233 USD 4,928 — N/A None
Stock MAGNACHIP SEMICONDUCTOR LLC — Financial assets measured at cost, noncurrent 31 USD 1,094 — Note None
Stock-Preferred stock MAXLINEAR, INC. — Financial assets measured at cost, noncurrent 2,070 USD 4,052 — N/A None
Stock-Preferred stock SMART VANGUARD LTD. — Financial assets measured at cost, noncurrent 5,750 USD 6,500 — N/A None
Stock-Preferred stock WISAIR, INC. — Financial assets measured at cost, noncurrent 153 USD 1,596 — N/A None
Stock-Preferred stock AMALFI SEMICONDUCTOR, INC. — Financial assets measured at cost, noncurrent 1,471 USD 1,500 — N/A None
Stock-Preferred stock DIBCOM, INC. — Financial assets measured at cost, noncurrent 10 USD 1,186 — N/A None
Stock-Preferred stock EAST VISION TECHNOLOGY LTD. — Financial assets measured at cost, noncurrent 2,770 USD 4,820 — N/A None
Stock-Preferred stock ALPHA & OMEGA SEMICONDUCTOR LTD. — Financial assets measured at cost, noncurrent 1,500 USD 3,375 — N/A None
Stock-Preferred stock AURORA SYSTEMS, INC. — Financial assets measured at cost, noncurrent 550 USD 242 — N/A None
Stock-Preferred stock VERIPRECISE TECHNOLOGY, INC. — Financial assets measured at cost, noncurrent 4,000 USD 4,000 — N/A None
Stock-Preferred stock PACTRUST COMMUNICATION, INC. — Financial assets measured at cost, noncurrent 4,850 USD 4,850 — N/A None
Stock-Preferred stock LUMINUS DEVICES, INC. — Financial assets measured at cost, noncurrent 477 USD 3,000 — N/A None

66

ATTACHMENT 3 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UMC CAPITAL CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock-Preferred stock REALLUSION HOLDING INC. — Financial assets measured at cost, noncurrent 1,800 USD 555 — N/A None
Stock-Preferred stock FORCE10 NETWORKS, INC. — Financial assets measured at cost, noncurrent 4,373 USD 4,500 — N/A None
Stock-Preferred stock QSECURE, INC. — Financial assets measured at cost, noncurrent 12,422 USD 3,000 — N/A None
Stock-Preferred stock VISAGE MOBILE INC. — Financial assets measured at cost, noncurrent 5,099 USD 2,000 — N/A None
Fund VENGLOBAL CAPITAL FUND III, L.P. — Financial assets measured at cost, noncurrent — USD 712 — N/A None
Fund TRANSLINK CAPITAL PARTNERS I L.P. — Financial assets measured at cost, noncurrent — USD 560 — N/A None
Stock KOTURA, INC. — Financial assets measured at cost, noncurrent 0.59 — — Note None
Stock-Preferred stock ZYLOGIC SEMICONDUCTOR CORP. — Financial assets measured at cost, noncurrent 750 — — N/A None

Note : The net assets values for unlisted investees classified as “Financial assets measured at cost, noncurrent” were not available as of June 30, 2007.

67

ATTACHMENT 4 (Individual securities acquired or disposed of with accumulated amount exceeding the lower of NT$100 million or 20 percent of the capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Type of securities Name of the securities Financial statement account Counter-party Relationship Beginning balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1) Addition — Units (thousand)/ bonds/ shares (thousand) Amount Disposal — Units (thousand)/ bonds/ shares (thousand) Amount Cost (Note 2) Gain (Loss) from disposal (Note 3) Ending balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1)
Convertible bonds EDOM TECHNOLOGY CO., LTD. Financial assets at fair value through profit or loss, current EDOM TECHNOLOGY CO., LTD. — 60 $ 193,910 — $ — 60 $ 197,760 $ 201,990 $ (4,230 ) — $ —
Stock SILICONWARE PRECISION INDUSTRIES CO., LTD. Financial assets at fair value through profit or loss, current Open market — 5,395 276,202 — — 4,687 285,236 185,407 99,829 708 49,389
Stock EPITECH TECHNOLOGY CORP. Available-for-sale financial assets, noncurrent Note 4 — 37,221 1,155,725 — — 37,221 1,313,916 (Note 4) 794,117 519,799 — —
Stock EPISTAR CORP. Available-for-sale financial assets, noncurrent Note 4 — — — 18,969 (Note 5) 2,106,684 (Note 5) — — — — 18,969 2,551,289
Stock MEDIATEK INC. Available-for-sale financial assets, noncurrent Open market — 14,979 5,048,091 — — 1,069 392,332 11,057 380,561 (Note 6) 13,910 7,122,175
Stock AU OPTRONICS CORP. Available-for-sale financial assets, noncurrent Open market — 78,266 3,545,441 — — 74,616 3,671,116 895,055 2,782,317 (Note 7) 3,650 204,406
Stock HIGHLINK TECHNOLOGY CORP. Long-term investments accounted for under the equity method Note 4 — 28,500 225,624 — — 28,500 593,318 (Note 4) 175,810 417,625 (Note 8) — —
Stock HOLTEK SEMICONDUCTOR INC. Long-term investments accounted for under the equity method Open market — 51,939 878,747 — — 2,500 166,226 47,810 118,416 49,439 903,961
Stock NEXPOWER TECHNOLOGY CORP. Long-term investments accounted for under the equity method Proceeds from new issues — — — 29,680 296,800 350 3,675 3,515 160 29,330 295,176
Stock UNITED MICRODISPLAY OPTRONICS CORP. Long-term investments accounted for under the equity method Proceeds from new issues — 64,313 167,217 19,780 197,798 — — — — 84,093 257,487
Stock-Preferred stock AETAS TECHNOLOGY INC. Prepayment for long-term investments AETAS TECHNOLOGY INC. — — — 1,550 163,809 781 (Note 9) — 82,565 (Note 9) — 769 81,244

68

Fund VIETNAM INFRASTRUCTURE LTD. Prepayment for long-term investments VIETNAM INFRASTRUCTURE LTD. — — — — 166,468 — — — — — 166,468

69

ATTACHMENT 4 (Individual securities acquired or disposed of with accumulated amount exceeding the lower of NT$100 million or 20 percent of the capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Type of securities Name of the securities
Note 1: The amounts of beginning and ending balances of financial assets at fair value through profit or loss and available for sale are recorded at the prevailing market
prices.
Note 2: The disposal cost represents historical cost.
Note 3: Gain/Loss from disposal includes realized exchange gain/loss to which the ROC SFAS No. 34, “Financial Instruments:
Recognition and Measurement”, is applied. As for the gain/loss from disposal of financial assets at fair value through profit/loss transfers to
gain/loss on the valuation of financial assets.
Note 4: On March 1, 2007, EPITECH TECHNOLOGY CORP. and HIGHLINK TECHNOLOGY CORP. merged into EPISTAR CORP.
Note 5: The addition includes shares exchanged of 12,085 thousand shares of EPITECH TECHNOLOGY CORP. (amounted to NT$1,313,916 thousand), 5,182 thousand shares of HIGHLINK
TECHNOLOGY CORP. (NT$593,318 thousand) and 1,702 thousand shares acquired in open market (amounted to NT$199,450 thousand).
Note 6: The gain on disposal includes additional paid-in capital adjustments of NT$(714) thousand.
Note 7: The gain on disposal includes additional paid-in capital adjustments of NT$6,113 thousand and cumulative translation adjustments of NT$143 thousand.
Note 8: The gain on disposal includes additional paid-in capital adjustments of NT$117 thousand.
Note 9: Prepayment for long term investment converted to financial assets measured at cost.

FORTUNE VENTURE CAPITAL CORP.

Type of securities Name of the securities Financial statement account Counter-party Relationship Beginning balance — Units (thousand)/ bonds/shares (thousand) Amount (Note 1) Addition — Units (thousand)/ bonds/shares (thousand) Amount Disposal — Units (thousand)/ bonds/shares (thousand) Amount Cost Gain (Loss) from disposal Ending balance — Units (thousand)/ bonds/shares (thousand) Amount (Note 1)
Stock EPITECH TECHNOLOGY CORP. Available-for-sale financial assets, noncurrent Note 2 — 13,128 $ 407,627 — $ — 13,128 $ 463,421 $ 300,613 $ 162,808 — $ —
Stock EPISTAR CORP. Available-for-sale financial assets, noncurrent Note 2 — — — 4,272 (Note 3 ) 464,566 (Note 3 ) — — — — 4,272 574,633

Note 1: The amounts of beginning and ending balances of available-for-sale financial assets are recorded at the prevailing market prices.

Note 2: On March 1, 2007, EPITECH TECHNOLOGY CORP. and HIGHLINK TECHNOLOGY CORP. merged into EPISTAR CORP.

Note 3: The addition included shares exchanged of 4,262 thousand shares of EPITECH TECHNOLOGY CORP. (amounted to NT$463,421 thousand) and 10 thousand shares of HIGHLINK TECHNOLOGY CORP. (NT$1,145 thousand).

70

ATTACHMENT 4 (Individual securities acquired or disposed of with accumulated amount exceeding the lower of NT$100 million or 20 percent of the capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

TLC CAPITAL CO., LTD.

Type of securities Name of the securities Financial statement account Counter-party Relationship Beginning balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1) Addition — Units (thousand)/ bonds/ shares (thousand) Amount Disposal — Units (thousand)/ bonds/ shares (thousand) Amount Cost Gain (Loss) from disposal Ending balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1)
Convertible bonds EPISTAR CORP. Financial assets at fair value through profit or loss, noncurrent Note 2/ EPISTAR CORP. — — $ — 2,500 $ 317,500 2,500 $ 332,792 (Note 3 ) $ 317,500 $ 15,292 — $ —
Convertible bonds EPITECH TECHNOLOGY CORP. Financial assets at fair value through profit or loss, noncurrent Note 2 — 2,500 293,250 — — 2,500 317,500 250,000 67,500 — —
Stock ADVANCED SEMICONDUCTOR ENGINEERING, INC. Available-for-sale financial assets, noncurrent Open market — — — 3,700 141,090 — — — — 3,700 165,575
Stock AVERMEDIA TECHNOLOGIES, INC. Available-for-sale financial assets, noncurrent Open market — 4,085 163,196 — — 4,085 165,586 146,474 19,112 — —
Stock EPISTAR CORP. Available-for-sale financial assets, noncurrent Note 2/ EPISTAR CORP. — — — 9,261 (Note 4 ) 1,063,847 (Note 4 ) — — — — 9,261 1,245,596
Stock EPITECH TECHNOLOGY CORP. Available-for-sale financial assets, noncurrent Note 2 — 10,413 323,324 — — 10,413 367,579 298,327 69,252 — —
Stock TOPOINT TECHNOLOGY CO., LTD. Available-for-sale financial assets, noncurrent Open market — 5,430 395,317 841 67,929 (Note 5 ) 2,080 154,922 113,063 41,859 4,191 364,607
Stock MITAC TECHNOLOGY CORP. Available-for-sale financial assets, noncurrent Open market — — — 6,000 168,866 — — — — 6,000 234,000
Stock GIANT MANUFACTURING CO., LTD. Available-for-sale financial assets, noncurrent Open market — — — 1,770 105,435 — — — — 1,770 106,731
Stock TATUNG CORP. Available-for-sale financial assets, noncurrent Open market — 38,152 557,019 — — 12,000 175,971 147,694 28,277 26,152 384,434

71

ATTACHMENT 4 (Individual securities acquired or disposed of with accumulated amount exceeding the lower of NT$100 million or 20 percent of the capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

TLC CAPITAL CO., LTD.

Type of securities Name of the securities Financial statement account Counter-party Relationship Beginning balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1) Addition — Units (thousand)/ bonds/ shares (thousand) Amount Disposal — Units (thousand)/ bonds/ shares (thousand) Amount Cost Gain (Loss) from disposal Ending balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1)
Stock TRIDENT MICROSYSTEMS, INC. Available-for-sale financial assets, noncurrent Open market — — $ — 250 $ 164,588 — $ — $ — $ — 250 $ 150,516
Stock WINTEK CORP. Available-for-sale financial assets, noncurrent Open market — — — 3,957 122,472 1,000 34,311 30,698 3,613 2,957 104,973
Stock CHINA DEVELOPMENT FINANCIAL HOLDING CORP. Available-for-sale financial assets, noncurrent Open market — 23,596 353,936 — — 19,855 276,938 242,724 34,214 3,741 53,306
Stock HIGHLINK TECHNOLOGY CORP. Long-term investments accounted for under the equity method Note 2 — 17,460 134,999 — — 17,460 363,476 134,999 231,019 (Note 6 ) — —

Note 1: The amounts of beginning and ending balances of financial assets at fair value through profit or loss and available for sale are recorded at the prevailing market prices.

Note 2: On March 1, 2007, EPITECH TECHNOLOGY CORP. and HIGHLINK TECHNOLOGY CORP. merged into EPISTAR CORP.

Note 3: Exercise of conversion rights of EPISTAR CORP’s convertible bonds to obtain 2,706 thousand shares of EPISTAR stock.

Note 4: The addition included shares exchanged of 3,381 thousand shares of EPITECH TECHNOLOGY CORP.(amounted to NT$367,579 thousand) , 3,174 thousand shares of HIGHLINK TECHNOLOGY CORP.(NT$363,476 thousand) and conversion of 2,706 thousand shares of EPISTAR CORP.(amounted to NT$ 332,792 thousand)

Note 5: Exercise of conversion rights of the company’s convertible bond classified as “Financial asset at fair value through profit or loss” on the balance sheet.

Note 6: The gain on disposal includes long-term additional paid-in capital adjustments of NT$2,542 thousand due to proportionate changes in shareholding.

72

ATTACHMENT 5 (Acquisition of individual real estate with amount exceeding the lower of NT$100 million or 20 percent of the capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Name of properties Transaction date Transaction amount Payment status Counter-party Relationship Where counter-party is a related party, details of prior transactions — Former holder of property Relationship between former holder and acquirer of property Date of transaction Transaction amount Price reference Date of acquisition and status of utilization
R&D Center in Tainan Science Park 2007.6.22 $ 725,000 90% fullfilled Yih Shin Construction Co, Ltd. Third Party N/A N/A N/A N/A cost 2007.6.22 /In use

73

ATTACHMENT 6 (Disposal of individual real estate with amount exceeding the lower of NT$100 million or 20 percent of the capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Names of properties
None

74

ATTACHMENT 7 ( Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Related party Relationship Transactions — Purchases (Sales) Amount Percentage of total purchases (sales) (%) Term Details of non-arm’s length transaction — Unit price Term Notes and accounts receivable (payable) — Balance Percentage of total receivables (%)
UMC GROUP (USA) Investee company Sales $ 22,337,422 46 Net 60 Days N/A N/A $ 5,113,267 35
UNITED MICROELECTRONICS (EUROPE) B.V. Investee company Sales 3,561,729 7 Net 60 Days N/A N/A 1,401,612 10
UMC JAPAN Investee company Sales 1,302,912 3 Net 60 Days N/A N/A 379,108 3
SILICON INTEGRATED SYSTEMS CORP. The Company’s director Sales 426,549 1 Month-end 45 Days N/A N/A 69,244 0
HOLTEK SEMICONDUCTOR INC. Investee company Sales 271,438 1 Month-end 60 Days N/A N/A 100,737 1
ITE TECH. INC. Investee company Sales 209,396 0 Month-end 45 Days N/A N/A 103,700 1

UNITED MICROELECTRONICS (EUROPE) B.V.

Related party Relationship Transactions — Purchases (Sales) Amount Percentage of total purchases (sales) (%) Term Details of non-arm’s length transaction — Unit price Term Notes and accounts receivable (payable) — Balance Percentage of total receivables (%)
UNITED MICROELECTRONICS CORPORATION Investor company Purchases USD 108,036 100 Net 60 Days N/A N/A USD 42,719 100

75

ATTACHMENT 7 ( Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UMC GROUP (USA)

Related party Relationship Transactions — Purchases (Sales) Amount Percentage of total purchases (sales) (%) Term Details of non-arm’s length transaction — Unit price Term Notes and accounts receivable (payable) — Balance Percentage of total receivables (%)
UNITED MICROELECTRONICS CORPORATION Investor company Purchases USD 677,842 100 Net 60 Days N/A N/A USD 155,848 100

UMC JAPAN

Related party Relationship Transactions — Purchases (Sales) Amount Percentage of total purchases (sales) (%) Term Details of non-arm’s length transaction — Unit price Term Notes and accounts receivable (payable) — Balance Percentage of total receivables (%)
UNITED MICROELECTRONICS CORPORATION Investor company Purchases JPY 4,681,539 65 Net 60 Days N/A N/A JPY 1,423,984 31
AMIC TECHNOLOGY CORP. Investee of UMC Sales JPY 751,033 5 Month-end 45 Days N/A N/A JPY 550,771 7

76

ATTACHMENT 8 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Related party Relationship Ending balance — Notes receivable Accounts receivable Other receivables Total Turnover rate (times) Overdue receivables — Amount Collection status Amount received in subsequent period Allowance for doubtful accounts
UMC GROUP (USA) Investee company $ — $ 5,113,267 $ 105 $ 5,113,372 8.73 $ — — $ 4,418,053 $ —
UNITED MICROELECTRONICS (EUROPE) B.V. Investee company — 1,401,612 8 1,401,620 6.67 122,671 Credit Collecting 741,351 —
UMC JAPAN Investee company — 379,108 207 379,315 6.68 — — 189,372 587
ITE TECH. INC. Investee company — 103,700 171 103,871 5.76 — — 42,289 —
HOLTEK SEMICONDUCTOR INC. Investee company 44,134 56,603 — 100,737 5.02 — — 87,200 —

UMC JAPAN

Related party Relationship Ending balance — Notes receivable Accounts receivable Other receivables Total Turnover rate (times) Overdue receivables — Amount Collection status Amount received in subsequent period Allowance for doubtful accounts
AMIC TECHNOLOGY CORP. Investee of UMC $ — JPY 550,771 $ — JPY 550,771 4.48 JPY 394,052 Credit Collecting JPY 193,296 $ —

77

ATTACHMENT 9 (Names, locations and related information of investee companies as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Investee company Address Main businesses and products Initial Investment (Note 1) — Ending balance Beginning balance Investment as of June 30, 2007 — Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
UMC GROUP (USA) Sunnyvale, California, USA IC Sales USD 16,438 USD 16,438 16,438 100.00 $ 982,297 $ (34,800 ) $ (34,800 )
UNITED MICROELECTRONICS (EUROPE) B.V. The Netherlands IC Sales USD 5,421 USD 5,421 9 100.00 295,851 11,404 11,404
UMC CAPITAL CORP. Grand Cayman, Cayman Islands Investment holding USD 124,000 USD 124,000 124,000 100.00 3,969,316 13,004 13,004
UNITED MICROELECTRONICS CORP. (SAMOA) Apia, Samoa Investment holding USD 1,000 USD 1,000 280 100.00 5,246 (3,330 ) (3,330 )
UMCI LTD. Singapore Sales and manufacturing of integrated circuits USD 839,880 USD 839,880 880,006 100.00 98 (295 ) (295 )
TLC CAPITAL CO., LTD. Taipei, Taiwan Consulting and planning for investment in new business 6,000,000 6,000,000 600,000 100.00 8,328,633 542,271 542,271
FORTUNE VENTURE CAPITAL CORP. Taipei, Taiwan Consulting and planning for investment in new business 4,999,940 4,999,940 499,994 99.99 11,417,688 231,311 233,558
UNITED MICRODISPLAY OPTRONICS CORP. Hsinchu Science Park, Taiwan Sales and manufacturing of LCOS 1,205,876 1,008,078 84,093 85.24 257,487 (102,430 ) (84,973 )
UMC JAPAN Chiba, Japan Sales and manufacturing of integrated circuits JPY 20,994,400 JPY 20,994,400 496 50.09 5,578,444 (436,861 ) (218,818 )
PACIFIC VENTURE CAPITAL CO., LTD. Taipei, Taiwan Consulting and planning for investment in new business 150,000 150,000 30,000 49.99 127,379 14,288 — Note 2
MTIC HOLDINGS PTE LTD. Singapore Investment holding SGD 4,000 SGD 4,000 4,000 49.94 78,805 (6,755 ) (3,373 )
UNITECH CAPITAL INC. British Virgin Islands Investment holding USD 21,000 USD 21,000 21,000 42.00 1,122,669 209,026 87,791
NEXPOWER TECHNOLOGY CORP. Hsinchu, Taiwan Sales and manufacturing of solar power batteries 293,298 — 29,330 36.66 295,176 5,874 1,891
HSUN CHIEH INVESTMENT CO., LTD. Taipei, Taiwan Investment holding 336,241 336,241 33,624 36.49 4,943,314 1,040,348 367,340
HOLTEK SEMICONDUCTOR INC. Hsinchu Science Park, Taiwan IC design and production 340,415 357,628 49,439 23.12 903,961 410,082 68,147
ITE TECH. INC. Hsinchu Science Park, Taiwan Sales and manufacturing of integrated circuits 186,898 186,898 24,229 21.62 380,738 224,957 39,597

78

ATTACHMENT 9 (Names, locations and related information of investee companies as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Investee company Address Main businesses and products Initial Investment (Note 1) — Ending balance Beginning balance Investment as of June 30, 2007 — Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
XGI TECHNOLOGY INC. Hsinchu, Taiwan Cartography chip design and production $ 248,795 $ 248,795 5,868 16.44 $ 40,619 $ (81,805 ) $ (13,475 )
AMIC TECHNOLOGY CORP. Hsinchu Science Park, Taiwan IC design, production and sales 135,000 135,000 16,200 11.82 49,654 (96,166 ) (11,385 )
MEGA MISSION LIMITED PARTNERSHIP Cayman Islands Investment holding USD 67,500 USD 67,500 — 45.00 2,551,817 413,319 185,993 Note 3

Note 1: Initial investment amounts denominated in foreign currencies are expressed in thousands.

Note 2: From the third quarter of 2006, the Company no longer recognized the investment income of PACIFIC VENTURE CAPITAL CO., LTD. because of the liquidation began in July 3,2006.

Note 3: No shares since it belongs to partnership fund organization.

FORTUNE VENTURE CAPITAL CORP.

Investee company Address Main businesses and products Initial Investment (Note 1) — Ending balance Beginning balance Investment as of June 30, 2007 — Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
UNITRUTH INVESTMENT CORP. Taipei, Taiwan Investment holding $ 800,000 $ 800,000 80,000 100.00 $ 822,125 $ 60,932 $ 60,932
ANOTO TAIWAN CORP. Taoyuan County, Taiwan Tablet transmission systems and chip-set 39,200 39,200 3,920 49.00 27,169 (11,128 ) (5,453 )
AEVOE INTERNATIONAL LTD. Samoa Design of VOIP Telephone USD 912 USD 912 2,500 44.33 9,256 (3,208 ) 1,473
UWAVE TECHNOLOGY CORP. Hsinchu, Taiwan RF IC Design 85,471 85,471 10,186 44.29 — (59,486 ) (34,076 )
UCA TECHNOLOGY INC. Taipei County, Taiwan Design of MP3 player chip 99,311 99,311 11,285 42.38 29,180 (31,266 ) (13,249 )

79

ATTACHMENT 9 (Names, locations and related information of investee companies as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

FORTUNE VENTURE CAPITAL CORP.

Investee company Address Main businesses and products Initial Investment — Ending balance Beginning balance Investment as of June 30, 2007 — Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
WALTOP INTERNATIONAL CORP. Hsinchu, Taiwan Tablet PC module, Pen LCD Monitor/module $ 90,000 $ 90,000 6,000 30.00 $ 88,252 $ 1,408 $ 159
CRYSTAL MEDIA INC. Hsinchu, Taiwan Design of VOIP network phones 50,629 50,629 4,493 25.15 37,910 1,910 481
SMEDIA TECHNOLOGY CORP. Hsinchu, Taiwan Multimedia co-processor 93,478 93,478 9,045 23.08 26,464 (52,742 ) (12,173 )
ALLIANCE OPTOTEK CORP. Hsinchu County, Taiwan Design and manufacturing of LED 39,900 39,900 3,500 21.21 26,734 (35,894 ) (7,614 )
AFA TECHNOLOGY, INC. Taipei County, Taiwan IC design 104,001 64,544 6,713 19.43 71,699 (48,610 ) (9,786 )
HIGH POWER LIGHTING CORP. Taipei County, Taiwan High brightness LED package and Lighting module R&D and manufacture 54,300 54,300 4,525 18.10 41,749 (32,099 ) (5,810 )
MOBILE DEVICES INC. Hsinchu County, Taiwan PHS &GSM/PHS dual mode B/B Chip 60,599 56,102 5,713 17.36 20,885 (57,145 ) (10,570 )
AMIC TECHNOLOGY CORP. Hsinchu Science Park, Taiwan IC design, production and sales 291,621 291,621 23,405 17.06 108,422 (96,166 ) (16,420 )
XGI TECHNOLOGY INC. Hsinchu, Taiwan Design and manufacturing of cartography chip 270,483 270,483 4,208 11.81 23,823 (81,805 ) (8,653 )

80

ATTACHMENT 9 (Names, locations and related information of investee companies as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

TLC CAPITAL CO., LTD.

Investee company Address Main businesses and products Initial Investment — Ending balance Beginning balance Investment as of June 30, 2007 — Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
Y.S. FINANCIAL ADVISORY CO., LTD. Taipei, Taiwan Investment Management Consultant, etc. $ 70,000 $ — 7,000 48.95 $ 70,000 $ 128 $ —
YUNG LI INVESTMENTS, INC. Taipei, Taiwan Investment holding 200,000 200,000 0.20 37.04 202,724 1,976 749
SMEDIA TECHNOLOGY CORP. Hsinchu, Taiwan Multimedia co-processor 106,266 106,266 7,084 18.08 90,556 (52,742 ) (9,534 )
UNITRUTH INVESTMENT CORP.
Initial Investment Investment as of June 30, 2007
Investee company Address Main businesses and products Ending balance Beginning balance Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
WALTOP INTERNATIONAL CORP. Hsinchu, Taiwan Tablet PC module, Pen LCD Monitor/module $ 30,000 $ 30,000 2,000 10.00 $ 29,417 $ 1,408 $ 53
CRYSTAL MEDIA INC. Hsinchu, Taiwan Design of VOIP network phones 16,493 16,493 1,587 8.88 13,390 1,910 170
ALLIANCE OPTOTEK CORP. Hsinchu County, Taiwan Design and manufacturing of LED 14,820 14,820 1,300 7.88 9,930 (35,894 ) (2,828 )
SMEDIA TECHNOLOGY CORP. Hsinchu, Taiwan Multimedia co-processor 24,057 24,057 2,570 6.56 13,943 (52,742 ) (3,458 )
UCA TECHNOLOGY INC. Taipei County, Taiwan Design of MP3 player chip 11,910 11,910 1,585 5.95 5,999 (31,266 ) (1,861 )
HIGH POWER LIGHTING CORP. Taipei County, Taiwan High brightness LED package and Lighting module R&D and manufacture 14,700 14,700 1,225 4.90 11,302 (32,099 ) (1,573 )
UWAVE TECHNOLOGY CORP. Hsinchu, Taiwan RF IC Design 6,950 6,950 1,000 4.35 — (59,486 ) (2,235 )

81

ATTACHMENT 9 (Names, locations and related information of investee companies as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITRUTH INVESTMENT CORP.

Investee company Address Main businesses and products Initial Investment — Ending balance Beginning balance Investment as of June 30, 2007 — Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
MOBILE DEVICES INC. Hsinchu County, Taiwan PHS &GSM/PHS dual mode B/B Chip $ 11,463 $ 11,463 1,250 3.80 $ 3,906 $ (57,145 ) $ (2,360 )
XGI TECHNOLOGY INC. Hsinchu, Taiwan Design and manufacturing of cartography chip 26,400 26,400 1,179 3.31 8,158 (81,805 ) (2,712 )
AFA TECHNOLOGY, INC. Taipei County, Taiwan IC design 5,600 5,600 1,000 2.89 8,890 (48,610 ) (1,427 )
UMC CAPITAL CORP.
Initial Investment (Note 1) Investment as of June 30, 2007
Investee company Address Main businesses and products Ending balance Beginning balance Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
UMC CAPITAL (USA) Sunnyvale, California, U.S.A. Investment holding USD 200 USD 200 200 100.00 USD 343 USD 17 USD 17
ECP VITA LTD. British Virgin Islands Insurance USD 1,000 USD 1,000 1,000 100.00 USD 1,733 USD 184 USD 184
ACHIEVE MADE INTERNATIONAL LTD. British Virgin Islands Internet Content Provider USD 1,000 USD 1,000 508 43.29 USD 781 USD (303 ) USD (132 )
UC FUND II British Virgin Islands Investment holding USD 3,850 USD 3,850 5,000 35.45 USD 7,684 USD 2,724 USD 965
PARADE TECHNOLOGIES, LTD. U.S.A. IC design USD 2,500 USD 2,500 3,125 23.30 USD 1,459 USD (2,427 ) USD (566 )

Note 1: Initial investment amounts denominated in foreign currencies are expressed in thousands.

82

UNITED MICROELECTRONICS CORPORATION

AND SUBSIDIARIES

CONSOLIDATED FINANCIAL STATEMENTS

WITH REPORT OF INDEPENDENT AUDITORS

FOR THE SIX-MONTH PERIODS ENDED

JUNE 30, 2007 AND 2006

Address: No. 3 Li-Hsin Road II, Hsinchu Science Park, Hsinchu City, Taiwan, R.O.C.

Telephone: 886-3-578-2258

The reader is advised that these financial statements have been prepared originally in Chinese. In the event of a conflict between these financial statements and the original Chinese version or difference in interpretation between the two versions, the Chinese language financial statements shall prevail.

REPORT OF INDEPENDENT AUDITORS

English Translation of a Report Originally Issued in Chinese

To United Microelectronics Corporation

We have audited the accompanying consolidated balance sheets of United Microelectronics Corporation and Subsidiaries as of June 30, 2007 and 2006, and the related consolidated statements of income, change in stockholders’ equity and cash flows for the six-month periods ended June 30, 2007 and 2006. The consolidated financial statements are the responsibility of United Microelectronics Corporation’s management. Our responsibility is to express an opinion on these financial statements based on our audits. As described in Note 4(9) to the consolidated financial statements, certain long-term investments were accounted for under the equity method based on the June 30, 2007 and 2006 financial statements of the investees, which were audited by other auditors. Our opinion insofar as it relates to the investment income amounting to NT$463 million and NT$473 million for the six-month periods ended June 30, 2007 and 2006, respectively, and the related long-term investment balances of NT$7,219 million and NT$6,018 million as of June 30, 2007 and 2006, respectively, is based solely on the reports of the other auditors.

We conducted our audits in accordance with auditing standards generally accepted in the Republic of China and “Guidelines for Certified Public Accountants’ Examination and Reports on Financial Statements”, which 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, assessing the accounting principles used and significant estimates made by management, and evaluating the overall consolidated financial statement presentation. We believe that our audits and the reports of the other auditors provide a reasonable basis for our opinion.

In our opinion, based on our audits and the reports of other auditors, the consolidated financial statements referred to above present fairly, in all material respects, the consolidated financial position of United Microelectronics Corporation and Subsidiaries as of June 30, 2007 and 2006, and the results of their consolidated operations and their consolidated cash flows for the six-month periods ended June 30, 2007 and 2006, in conformity with the “Business Entity Accounting Law”, the “Regulation on Business Entity Accounting Handling”, the “Guidelines Governing the Preparation of Financial Reports by Securities Issuers” and accounting principles generally accepted in the Republic of China.

As described in Note 3 to the consolidated financial statements, effective from January 1, 2006, United Microelectronics Corporation and Subsidiaries have adopted the ROC Statement of Financial Accounting Standards No. 34, “Financial Instruments: Recognition and Measurement” and No. 36, “Financial Instruments: Disclosure and Presentation” to account for the financial instruments.

As described in Note 3 to the consolidated financial statements, effective from January 1, 2006, goodwill is no longer to be amortized.

August 1 , 2007

Taipei, Taiwan

Republic of China

Notice to Readers

The accompanying consolidated financial statements are intended only to present the consolidated financial position, results of operations and cash flows in accordance with accounting principles and practices generally accepted in the Republic of China and not those of any other jurisdictions. The standards, procedures and practices to audit such consolidated financial statements are those generally accepted and applied in the Republic of China.

1

English Translation of Consolidated Financial Statements Originally Issued in Chinese

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

June 30, 2007 and 2006

(Expressed in Thousands of New Taiwan Dollars)

Notes As of June 30, — 2007 2006
Assets
Current assets
Cash and cash equivalents 2, 4(1) $ 85,608,440 $ 104,638,721
Financial assets at fair value through profit or loss, current 2, 3, 4(2) 7,802,258 1,506,063
Held-to-maturity financial assets, current 2, 3, 4(3) 200,000 779,456
Notes receivable 3,094 93,694
Notes receivable—related parties 5 44,134 68,788
Accounts receivable, net 2, 4(4) 15,373,522 14,432,344
Accounts receivable—related parties, net 2, 5 405,862 639,031
Other receivables 2 601,463 915,369
Inventories, net 2, 4(5) 11,484,971 11,101,565
Prepaid expenses 1,197,494 1,006,262
Deferred income tax assets, current 2, 4(22) 2,161,102 2,768,318
Total current assets 124,882,340 137,949,611
Funds and investments
Financial assets at fair value through profit or loss, noncurrent 2, 3, 4(6) — 460,663
Available-for-sale financial assets, noncurrent 2, 3, 4(7), 4(12) 60,571,122 42,265,703
Held-to-maturity financial assets, noncurrent 2, 3, 4(3) — 340,200
Financial assets measured at cost, noncurrent 2, 3, 4(8), 4(12) 7,882,650 5,820,121
Long-term investments accounted for under the equity method 2, 3, 4(9), 4(12) 11,782,254 12,746,745
Prepayment for long-term investments 247,712 —
Total funds and investments 80,483,738 61,633,432
Property, plant and equipment 2, 4(10), 7
Land 1,857,774 1,901,659
Buildings 21,639,715 21,243,519
Machinery and equipment 431,657,331 400,335,575
Transportation equipment 85,883 90,084
Furniture and fixtures 3,067,345 2,919,197
Leasehold improvements 43,351 42,640
Total cost 458,351,399 426,532,674
Less: Accumulated depreciation (329,091,059 ) (292,121,103 )
Add: Construction in progress and prepayments 19,660,008 10,563,033
Property, plant and equipment, net 148,920,348 144,974,604
Intangible assets
Goodwill 2, 3 3,498,687 3,498,687
Technological know-how 2 — 299,877
Other intangible assets 2 — 8,612
Total intangible assets 3,498,687 3,807,176
Other assets
Deferred charges 2 1,429,880 1,667,615
Deferred income tax assets, noncurrent 2, 4(22) 3,442,669 4,414,747
Other assets—others 2, 4(11), 6 2,229,680 2,286,049
Total other assets 7,102,229 8,368,411
Total assets $ 364,887,342 $ 356,733,234
Liabilities and Stockholders’ Equity
Current liabilities
Short-term loans 4(13), 6 $ 364,329 $ 340,518
Financial liabilities at fair value through profit or loss, current 2, 3, 4(14) 423,226 1,188,930
Accounts payable 5,767,183 6,194,242
Income tax payable 2 329,952 1,329,839
Accrued expenses 7,020,820 6,239,362
Cash dividends payable 12,461,529 7,161,301
Payable on equipment 4,277,063 4,448,995
Other payables 2,344,717 381,508
Current portion of long-term liabilities 2, 4(15) 24,426,911 12,921,369
Other current liabilities 872,815 2,151,697
Deferred income tax liabilities, current 2, 4(22) 148 2,140
Total current liabilities 58,288,693 42,359,901
Long-term liabilities
Bonds payable 2, 4(15) 7,494,762 33,200,034
Total long-term liabilities 7,494,762 33,200,034
Other liabilities
Accrued pension liabilities 2, 4(16) 3,143,027 3,061,730
Deposits-in 11,018 19,282
Deferred income tax liabilities, noncurrent 2, 4(22) 24,526 54,239
Deferred credits—intercompany profits 2 13,245 36,297
Other liabilities—others 508,773 602,143
Total other liabilities 3,700,589 3,773,691
Total liabilities 69,484,044 79,333,626
Capital 2, 4(17), 4(18), 4(20)
Common stock 191,442,517 188,452,341
Stock dividends for distribution — 2,248,771
Additional paid in capital 2, 4(17)
Premiums 61,138,863 60,712,685
Treasury stock transactions 8,938 —
Change in equities of long-term investments 6,623,992 6,655,250
Retained earnings 4(17), 4(20)
Legal reserve 18,476,942 16,699,508
Special reserve 824,922 322,150
Unappropriated earnings 7,062,654 3,434,838
Adjustment items to stockholders’ equity 2, 4(7)
Cumulative translation adjustment (578,030 ) (855,518 )
Unrealized gain or loss on financial instruments 33,939,144 19,677,371
Treasury stock 2, 4(9), 4(17), 4(19) (29,394,664 ) (26,387,722 )
Total stockholders’ equity of parent company 289,545,278 270,959,674
Minority interests 5,858,020 6,439,934
Total stockholders’ equity 295,403,298 277,399,608
Total liabilities and stockholders’ equity $ 364,887,342 $ 356,733,234

The accompanying notes are an integral part of the consolidated financial statements.

2

English Translation of Consolidated Financial Statements Originally Issued in Chinese

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

For the six-month periods ended June 30, 2007 and 2006

(Expressed in Thousands of New Taiwan Dollars, Except for Earnings per Share )

Notes For the six-month period ended June 30, — 2007 2006
Operating revenues 2,5
Sales revenues $ 49,976,272 $ 52,855,507
Less : Sales returns and discounts (326,829 ) (584,810 )
Net Sales 49,649,443 52,270,697
Other operating revenues 1,704,194 1,729,714
Net operating revenues 51,353,637 54,000,411
Operating costs 4(21)
Cost of goods sold (41,509,432 ) (44,395,454 )
Other operating costs (992,305 ) (1,255,681 )
Operating costs (42,501,737 ) (45,651,135 )
Gross profit 8,851,900 8,349,276
Unrealized intercompany profit 2 (96,448) (91,435 )
Realized intercompany profit 2 105,892 118,815
Gross profit-net 8,861,344 8,376,656
Operating expenses 2,4(21)
Sales and marketing expenses (1,782,962 ) (1,715,293 )
General and administrative expenses (1,685,391 ) (1,559,754 )
Research and development expenses 2 (4,705,534 ) (4,235,723 )
Subtotal (8,173,887 ) (7,510,770 )
Operating income 687,457 865,886
Non-operating income
Interest revenue 767,355 755,317
Investment gain accounted for under the equity method, net 2,4(9) 530,417 296,402
Dividend income 59,796 43,431
Gain on disposal of property, plant and equipment 2 119,545 245,573
Gain on disposal of investments 2 5,271,930 18,996,576
Exchange gain, net 2, 10 — 98,174
Gain on valuation of financial liabilities 2 — 89,197
Other income 306,587 468,093
Subtotal 7,055,630 20,992,763
Non-operating expenses
Interest expense 4(10) (90,327 ) (400,662 )
Loss on disposal of property, plant and equipment 2 (84,214 ) (95,753 )
Exchange loss, net 2, 10 (19,433 ) —
Loss on decline in market value and obsolescense of inventories 2 (38,891 ) (526,320 )
Financial expenses (88,687 ) (105,333 )
Impairment loss 2,4(12) (248,555 ) (21,807 )
Loss on valuation of financial assets 2 (88,169 ) (173,068 )
Loss on valuation of financial liabilities 2 (44,586 ) —
Other losses 2 (113,054 ) (38,141 )
Subtotal (815,916 ) (1,361,084 )
Income from continuing operations before income tax 6,927,171 20,497,565
Income tax expense 2,4(22) (792,999 ) (1,413,158 )
Income from continuing operations 6,134,172 19,084,407
Cumulative effect of changes in accounting principles (the net amount after deducted tax expense $0) 3 — (1,188,515 )
Net income $ 6,134,172 $ 17,895,892
Attributable to:
Shareholders of the parent $ 6,369,668 $ 18,337,788
Minority interests (235,496 ) (441,896 )
Net income $ 6,134,172 $ 17,895,892
Earnings per share-basic (NTD) 2,4(23) Post-tax Pre-tax Post-tax
Net income attributable to shareholders of the parent $ 0.40 $ 0.36 $ 1.08 $ 1.00
Earnings per share-diluted (NTD) 2,4(23)
Net income attributable to shareholders of the parent $ 0.39 $ 0.35 $ 1.03 $ 0.96

The accompanying notes are an integral part of the consolidated financial statements.

3

English Translation of Consolidated Financial Statements Originally Issued in Chinese

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

For the six-month periods ended June 30, 2007 and 2006

(Expressed in Thousands of New Taiwan Dollars)

Notes Capital — Common Stock Stock Dividends for Distribution Collected in Advance Additional Paid-in Capital Legal Reserve Special Reserve Unappropriated Earnings Unrealized Gain/Loss on Financial Instruments Cumulative Translation Adjustment Treasury Stock Minority Interests Total
Balance as of January 1, 2006 4(17) $ 197,947,033 $ — $ 36,600 $ 85,381,599 $ 15,996,839 $ 1,744,171 $ 8,831,782 $ (80,989 ) $ (241,153 ) $ (51,332,329 ) $ 6,336,685 $ 264,620,238
The effect of adopting SFAS NO. 34 3(2) — — — — — — — 24,097,170 11,547 — — 24,108,717
Appropriation of 2005 retained earnings 4(20)
Legal reserve — — — — 702,669 — (702,669 ) — — — — —
Special reserve — — — — — (1,422,021 ) 1,422,021 — — — — —
Cash dividends — — — — — — (7,161,267 ) — — — — (7,161,267 )
Stock dividends — 895,158 — — — — (895,158 ) — — — — —
Remuneration to directors and supervisors — — — — — — (6,324 ) — — — — (6,324 )
Employee bonus-cash — — — — — — (305,636 ) — — — — (305,636 )
Employee bonus-stock — 458,455 — — — — (458,455 ) — — — — —
Additional paid-in capital transferred to common stock 4(17) — 895,158 — (895,158 ) — — — — — — — —
Purchase of treasury stock 2, 4(19) — — — — — — — — — (24,279,397 ) — (24,279,397 )
Cancellation of treasury stock 2, 4(17), 4(19) (10,000,000) — — (3,269,100 ) — — (6,371,128 ) — — 19,640,228 — —
Adjustment of treasury stock due to loss of control over subsidiary — — — — — — (9,256,116 ) (6,826,238 ) — 29,583,776 — 13,501,422
Net income in the first half of 2006 — — — — — — 18,337,788 — — — (441,896 ) 17,895,892
Adjustment of additional paid-in capital accounted for under the equity method 2 — — — (15,280 ) — — — — — — — (15,280 )
Adjustment of funds and investments disposal 2 — — — (14,110,993 ) — — — — 8,171 — — (14,102,822 )
Changes in unrealized loss on available-for-sale financial assets 2 — — — — — — — (747,539 ) — — — (747,539 )
Changes in unrealized gain on financial instruments of investees 2 — — — — — — — 3,234,967 — — — 3,234,967
Exercise of employee stock options 2, 4(18) 468,708 — — 276,867 — — — — — — — 745,575
Common stock transferred from capital collected in advance 36,600 — (36,600 ) — — — — — — — — —
Changes in cumulative translation adjustment 2 — — — — — — — — (634,083 ) — — (634,083 )
Changes in minority interests — — — — — — — — — — 545,145 545,145
Balance as of June 30, 2006 4(17) $ 188,452,341 $ 2,248,771 $ — $ 67,367,935 $ 16,699,508 $ 322,150 $ 3,434,838 $ 19,677,371 $ (855,518 ) $ (26,387,722 ) $ 6,439,934 $ 277,399,608
Balance as of January 1, 2007 4(17) $ 191,311,927 $ — $ 11,405 $ 67,707,287 $ 16,699,508 $ 322,150 $ 17,774,335 $ 27,557,845 $ (824,922 ) $ (29,394,664 ) $ 6,238,018 $ 297,402,889
Appropriation of 2006 retained earnings 4(20)
Legal reserve — — — — 1,777,434 — (1,777,434 ) — — — — —
Special reserve — — — — — 502,772 (502,772 ) — — — — —
Cash dividends — — — — — — (12,461,529 ) — — — — (12,461,529 )
Remuneration to directors and supervisors — — — — — — (15,494 ) — — — — (15,494 )
Employee bonus-cash — — — — — — (2,324,120 ) — — — — (2,324,120 )
Net income in the first half of 2007 — — — — — — 6,369,668 — — — (235,496 ) 6,134,172
Adjustment of additional paid-in capital accounted for under the equity method 2 — — — 1,713 — — — — — — — 1,713
Adjustment of funds and investments disposal 2 — — — (5,515 ) — — — — — — — (5,515 )
Changes in unrealized gain on available-for-sale financial assets 2 — — — — — — — 5,273,095 — — — 5,273,095
Changes in unrealized gain on financial instruments of investees 2 — — — — — — — 1,108,204 — — — 1,108,204
Exercise of employee stock options 2, 4(18) 119,185 — — 68,308 — — — — — — — 187,493
Common stock transferred from capital collected in advance 11,405 — (11,405 ) — — — — — — — — —
Changes in cumulative translation adjustment 2 — — — — — — — — 246,892 — — 246,892
Changes in minority interests — — — — — — — — — — (144,502 ) (144,502 )
Balance as of June 30, 2007 4(17) $ 191,442,517 $ — $ — $ 67,771,793 $ 18,476,942 $ 824,922 $ 7,062,654 $ 33,939,144 $ (578,030 ) $ (29,394,664 ) $ 5,858,020 $ 295,403,298

The accompanying notes are an integral part of the consolidated financial statements.

4

English Translation of Consolidated Financial Statements Originally Issued in Chinese

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

For the six-month periods ended June 30, 2007 and 2006

(Expressed in Thousands of New Taiwan Dollars)

For the six-month period ended June 30, — 2007 2006
Cash flows from operating activities:
Net income attributable to shareholders of the parent $ 6,369,668 $ 18,337,788
Net loss attributable to minority interests (235,496 ) (441,896 )
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation 18,536,537 23,612,568
Amortization 648,598 945,882
Bad debt expenses (reversal) (1,409 ) 7,959
Loss on decline in market value and obsolescence of inventories 38,891 526,320
Cash dividends received under the equity method 353,592 —
Investment gain accounted for under the equity method (530,417 ) (296,402 )
Loss on valuation of financial assets and liabilities 132,755 1,272,386
Impairment loss 248,555 21,807
Gain on disposal of investments (5,271,930 ) (18,996,576 )
Gain on disposal of property, plant and equipment (35,331 ) (149,820 )
Gain on reacquisition of bonds (6,112 ) (4,628 )
Amortization of bond discounts 34,725 43,718
Exchange loss (gain) on financial assets and liabilities 12,554 (14,892 )
Exchange loss (gain) on long-term liabilities 283,791 (226,299 )
Amortization of deferred income (71,874 ) (59,747 )
Changes in assets and liabilities:
Financial assets and liabilities at fair value through profit or loss 475,612 370,882
Notes and accounts receivable (1,427,707 ) (194,477 )
Other receivables 246,744 72,680
Inventories (654,002 ) (918,459 )
Prepaid expenses (428,482 ) (314,130 )
Deferred income tax assets 476,033 199,126
Other current assets (9,807 ) 24,285
Accounts payable (584,758 ) 122,987
Income tax payable (10,465 ) (17,512 )
Accrued expenses (119,202 ) 111,578
Other payables (59,048 ) (108,658 )
Other current liabilities (6,765 ) 354,671
Accrued pension liabilities 30,149 42,538
Capacity deposits (714,685 ) (9,400 )
Other liabilities—others (11,655 ) 32,573
Net cash provided by operating activities 17,709,059 24,346,852
Cash flows from investing activities:
Acquisition of financial assets at fair value through profit or loss — (416,202 )
Proceeds from disposal of financial assets at fair value through profit or loss — 50,000
Acquisition of available-for-sale financial assets (3,233,873 ) (2,247,781 )
Proceeds from disposal of available-for-sale financial assets 2,996,582 6,155,748
Acquisition of financial assets measured at cost (496,143 ) (288,258 )
Proceeds from disposal of financial assets measured at cost 139,338 325,735
Acquisition of long-term investments accounted for under the equity method (438,042 ) (773,148 )
Proceeds from disposal of long-term investments accounted for under the equity method 676,095 8,135,538
Proceeds from maturities of held-to-maturity financial assets 908,200 —
Prepayment for long-term investments (247,712 ) —
Proceeds from capital reduction and liquidation of long-term investments 60,800 5,600
Acquisition of property, plant and equipment (21,590,411 ) (11,263,468 )
Proceeds from disposal of property, plant and equipment 350,872 395,842
Increase in deferred charges (618,191 ) (599,322 )
Decrease in other assets-others 17,696 618,339
Net cash provided by (used in) investing activities (21,474,789 ) 98,623

5

English Translation of Consolidated Financial Statements Originally Issued in Chinese

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

For the six-month periods ended June 30, 2007 and 2006

(Expressed in Thousands of New Taiwan Dollars)

For the six-month period ended June 30, — 2007 2006
(continued)
Cash flows from financing activities:
Increase in short-term loans $ 20,000 $ 209,888
Redemption of bonds (3,701,837 ) (5,250,000 )
Reacquisition of bonds (753,384 ) (202,841 )
Increase (decrease) in deposits-in (1,269 ) 627
Purchase of treasury stock — (23,831,095 )
Exercise of employee stock options 187,493 745,575
Increase (decrease) in minority shareholders 2,202 (130,263 )
Net cash used in financing activities (4,246,795 ) (28,458,109 )
Effect of exchange rate changes on cash and cash equivalents (232,243 ) 63,094
Effect of subsidiaries change — (38,539 )
Decrease in cash and cash equivalents (8,244,768 ) (3,988,079 )
Cash and cash equivalents at beginning of period 93,853,208 108,626,800
Cash and cash equivalents at end of period $ 85,608,440 $ 104,638,721
Supplemental disclosures of cash flow information:
Cash paid for interest $ 512,535 $ 784,471
Cash paid for income tax $ 2,018,344 $ 166,237
Investing activities partially paid by cash:
Acquisition of property, plant and equipment $ 15,737,107 $ 10,396,768
Add: Payable at beginning of period 10,130,367 5,315,695
Less: Payable at end of period (4,277,063 ) (4,448,995 )
Cash paid for acquiring property, plant and equipment $ 21,590,411 $ 11,263,468
Investing and financing activities not affecting cash flows:
Principal amount of exchangeable bonds exchanged by bondholders $ 3,285,254 $ 69,621
Book value of available-for-sale financial assets delivered for exchange (895,055 ) (20,242 )
Elimination of related balance sheet accounts 392,118 15,302
Recognition of gain on disposal of investments $ 2,782,317 $ 64,681

The accompanying notes are an integral part of the consolidated financial statements.

6

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and 2006

(Expressed in Thousands of New Taiwan Dollars unless Otherwise Specified)

  1. HISTORY AND ORGANIZATION

United Microelectronics Corporation (UMC) was incorporated in May 1980 and commenced operations in April 1982. UMC is a full service semiconductor wafer foundry, and provides a variety of services to satisfy customer needs. These services include intellectual property, embedded IC design, design verification, mask tooling, wafer fabrication, and testing. UMC’s common shares were publicly listed on the Taiwan Stock Exchange (TSE) in July 1985 and its American Depositary Shares (ADSs) were listed on the New York Stock Exchange (NYSE) in September 2000.

The numbers of employees as of June 30, 2007 and 2006 were 14,495 and 13,457, respectively.

  1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The consolidated financial statements were prepared in conformity with the “Business Entity Accounting Law”, “Regulation on Business Entity Accounting Handling”, “Guidelines Governing the Preparation of Financial Reports by Securities Issuers” and accounting principles generally accepted in the Republic of China (R.O.C.).

Summary of significant accounting policies is as follows:

General Descriptions of Reporting Entities

(1) Principles of Consolidation

Investees in which UMC, directly or indirectly, holds more than 50% of voting rights or de facto control with less than 50% of voting rights, are consolidated into UMC’s financial statements. (UMC and the consolidated entities are hereinafter referred to as “the Company”.)

Transactions between consolidated entities are eliminated in the consolidated financial statements. Prior to January 1, 2006, the difference between the acquisition cost and the net equity of a subsidiary as of the acquisition date was amortized over 5 years; however effective January 1, 2006, goodwill arising from new acquisitions is analyzed and accounted for under the ROC Statement of Financial Accounting Standard (SFAS) No. 25, “Business Combination – Accounting Treatment under Purchase Method”, and goodwill is no longer to be amortized.

7

(2) The consolidated entities are as follows:

As of June 30, 2007

Investor Subsidiary Business nature Percentage of ownership (%)
UMC UMC GROUP (USA)(UMC-USA) IC Sales 100.00
UMC UNITED MICROELECTRONICS (EUROPE) B.V (UMC-BV) IC Sales 100.00
UMC UMC CAPITAL CORP. Investment holding 100.00
UMC UNITED MICROELECTRONICS CORP. (SAMOA) Investment holding 100.00
UMC TLC CAPITAL CO., LTD. (TLC) Investment holding 100.00
UMC UMCI LTD. (UMCI) Sales and manufacturing of integrated circuits 100.00
UMC FORTUNE VENTURE CAPITAL CORP. (FORTUNE) Consulting and planning for investment in new business 99.99
UMC UNITED MICRODISPLAY OPTRONICS CORP. (UMO) (Note 1) Sales and manufacturing of LCOS 85.24
UMC UMC JAPAN (UMCJ) Sales and manufacturing of integrated circuits 50.09
FORTUNE UNITRUTH INVESTMENT CORP. (UNITRUTH) Investment holding 100.00
UMC CAPITAL CORP. UMC CAPITAL (USA) Investment holding 100.00
UMC CAPITAL CORP. ECP VITA LTD. Insurance 100.00
As of June 30, 2006
Investor Subsidiary Business nature Percentage of ownership (%)
UMC UMC-USA IC Sales 100.00
UMC UME BV IC Sales 100.00
UMC UMC CAPITAL CORP. Investment holding 100.00
UMC UNITED MICROELECTRONICS CORP. (SAMOA) Investment holding 100.00
UMC TLC Investment holding 100.00
UMC UMCI Sales and manufacturing of integrated circuits 100.00

8

Investor Subsidiary Business nature Percentage of ownership (%)
UMC FORTUNE Consulting and planning for investment in new business 99.99
UMC UMO (Note 1) Sales and manufacturing of LCOS 86.72
UMC UMCJ Sales and manufacturing of integrated circuits 50.09
UMC and UMO THINTEK OPTRONICS CORP. (THINTEK) (Note 1) LCOS design, production and sales 61.15
FORTUNE UNITRUTH Investment holding 100.00
UMC CAPITAL CORP. UMC CAPITAL (USA) Investment holding 100.00
UMC CAPITAL CORP. ECP VITA LTD. Insurance 100.00

Note 1: THINTEK was merged into UMO on October 1, 2006. The exchange ratio was 2.31 to 1.

Foreign Currency Transactions

Transactions denominated in foreign currencies are remeasured into the local functional currencies and recorded based on the exchange rates prevailing at the transaction dates. Monetary assets and liabilities denominated in foreign currencies are remeasured into the local functional currencies at the exchange rates prevailing at the balance sheet date, with the related exchange gains or losses included in the consolidated statements of income. Translation gains or losses from investments in foreign entities are recognized as cumulative translation adjustment in consolidated stockholders’ equity.

Non-monetary assets and liabilities denominated in foreign currencies that are reported at fair value with changes in fair value charged to the consolidated statements of income, are remeasured at the exchange rate at the balance sheet date, with related exchange gains or losses recorded in the consolidated statements of income. Non-monetary assets and liabilities denominated in foreign currencies that are reported at fair value with changes in fair value charged to consolidated stockholders’ equity, are remeasured at the exchange rate at the balance sheet date, with related exchange gains or losses recorded as adjustment items to consolidated stockholders’ equity. Non-monetary assets and liabilities denominated in foreign currencies and reported at cost are remeasured at historical exchange rates.

9

Use of Estimates

The preparation of the consolidated financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that will affect the amount of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amount of revenues and expenses during the reported period. Actual results may differ from those estimates.

Translation of Foreign Currency Financial Statements

The financial statements of foreign subsidiaries and the Branch are translated into New Taiwan Dollars using the spot rates as of each financial statement date for asset and liability accounts and average exchange rates for profit and loss accounts. The cumulative translation effects from the subsidiaries and the Branch using functional currencies other than New Taiwan Dollars are included in the cumulative translation adjustment in consolidated stockholders’ equity.

Cash Equivalents

Cash equivalents are short-term, highly liquid investments that are readily convertible to known amounts of cash and with maturity dates that do not present significant risks on changes in value resulting from changes in interest rates, including commercial paper with original maturities of three months or less.

Financial Instruments

In accordance with ROC SFAS No. 34, “Financial Instruments: Recognition and Measurement” and the “Guidelines Governing the Preparation of Financial Reports by Securities Issuers”, financial assets are classified as either financial assets at fair value through profit or loss, held-to-maturity financial assets, financial assets measured at cost, or available-for-sale financial assets. Financial liabilities are recorded at fair value through profit or loss.

The Company accounts for purchase or sale of financial instruments as of the trade date, which is the date the Company commits to purchasing or selling the asset or liability. Financial assets and financial liabilities are initially recognized at fair value plus acquisition or issuance costs.

a. Financial instruments at fair value through profit or loss

Financial instruments held for short-term sale or repurchase purposes and derivative financial instruments not qualified for hedge accounting are classified as financial assets or liabilities at fair value through profit or loss.

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This category of financial instruments is measured at fair value and changes in fair value are recognized in the consolidated statements of income. Stock of listed companies, convertible bonds, and close-end funds are measured at closing prices as of the balance sheet date. Open-end funds are measured at the unit price of the net assets as of the balance sheet date. The fair value of derivative financial instruments is determined by using valuation techniques commonly used by market participants.

b. Held-to-maturity financial assets

Non-derivative financial assets with fixed or determinable payments and fixed maturity are classified as held-to-maturity financial assets if the Company has both the positive intention and ability to hold the financial assets to maturity. Investments intended to be held to maturity are measured at amortized cost.

The Company recognizes an impairment loss if objective evidence of impairment loss exists. However, the impairment loss may be reversed if the value of asset recovers subsequently and the Company concludes that the recovery is related to improvements in events or factors that originally caused the impairment loss. The new cost basis as a result of the reversal cannot exceed the amortized cost prior to the impairment.

c. Financial assets measured at cost

Unlisted stock, funds, and other securities without reliable market prices are measured at cost. When objective evidence of impairment exists, the Company recognizes an impairment loss, which cannot be reversed in subsequent periods.

d. Available-for-sale financial assets

Available-for-sale financial assets are non-derivative financial instruments not classified as financial assets at fair value through profit or loss, held-to-maturity financial assets, loans and receivables. Subsequent measurement is calculated at fair value. Investments in listed companies are measured at closing prices as of the balance sheet date. Any gain or loss arising from the change in fair value, excluding impairment loss and exchange gain or loss arising from monetary financial assets denominated in foreign currencies, is recognized as an adjustment to consolidated stockholders’ equity until such investment is reclassified or disposed of, upon which the cumulative gain or loss previously charged to consolidated stockholders’ equity will be recorded in the consolidated statement of income.

The Company recognizes an impairment loss when objective evidence of impairment exists. Any reduction in the impairment loss of equity investments in subsequent periods will be recognized as an adjustment to consolidated stockholders’ equity. The impairment loss of a debt security may be reversed and recognized in the current period’s consolidated statement of income if the security recovers and the Company concludes the recovery is clearly related to improvements in the factors or events that originally caused the impairment.

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Allowance for Doubtful Accounts

An allowance for doubtful accounts is provided based on management’s judgment of the collectibility and aging analysis of accounts and other receivables.

Inventories

Inventories are accounted for on a perpetual basis. Raw materials are recorded at actual purchase costs, while the work in process and finished goods are recorded at standard costs and adjusted to actual costs using the weighted-average method at the end of each month. Inventories are stated individually by category at the lower of aggregate cost or market value as of the balance sheet date. The market values of raw materials and supplies are determined on the basis of replacement cost while the market values of work in process and finished goods are determined by net realizable values. An allowance for loss on decline in market value or obsolescence is provided, when necessary.

Long-term Investments Accounted for Under the Equity Method

Long-term investments are initially recorded at acquisition cost. Investments acquired by the contribution of technological know-how are credited to deferred credits among affiliates, which will be amortized to income over a period of 5 years.

Investments in which the Company has ownership of at least 20% or exercises significant influence on operating decisions are accounted for under the equity method. Prior to January 1, 2006, the difference of the acquisition cost and the underlying equity in the investee’s net assets as of acquisition date was amortized over 5 years; however, effective January 1, 2006, goodwill arising from new acquisitions is analyzed and accounted for under the ROC SFAS No. 25, “Business Combination – Accounting Treatment under Purchase Method”, where goodwill is no longer to be amortized.

The change in the Company’s proportionate share in the net assets of an investee resulting from its acquisition of additional stock issued by the investee at a rate not proportionate to its existing equity ownership is charged to the additional paid-in capital and long-term investments accounts.

Unrealized intercompany gains and losses arising from sales from the Company to equity method investees are eliminated in proportion to the Company’s ownership percentage at end of period until realized through transactions with third parties. Intercompany gains and losses arising from transactions between the Company and majority-owned (above 50%) subsidiaries are eliminated entirely until realized through transactions with third parties.

Unrealized intercompany gains and losses due to sales from equity method investees to the Company are eliminated in proportion to the Company’s weighted-average ownership percentage of the investee until realized through transactions with third parties.

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Unrealized intercompany gains and losses arising from transactions between two equity method investees are eliminated in proportion to the Company’s multiplied weighted-average ownership percentage with the investees until realized through transactions with third parties. Those intercompany gains and losses arising from transactions between two majority-owned subsidiaries are eliminated in proportion to the Company’s weighted-average ownership percentage in the subsidiary that incurred the gain or loss.

If the recoverable amount of investees accounted for under the equity method is less than its carrying amount, the difference is to be recognized as impairment loss in the current period.

The total value of an investment and related receivables cannot be negative. If, after the investment loss is recognized, the net book value of the investment is less than zero, the investment is reclassified to other liabilities-others on the balance sheet.

Property, Plant and Equipment

Property, plant and equipment are stated at cost. Interest incurred on loans used to finance the construction of property, plant and equipment is capitalized and depreciated accordingly. Maintenance and repairs are charged to expense as incurred. Significant renewals and improvements are treated as capital expenditures and are depreciated over their estimated useful lives. When property, plant and equipment are disposed, their original cost and accumulated depreciation are written off and the related gain or loss is classified as non-operating income or expense. Idle assets are classified as other assets at the lower of net book or net realizable value, with the difference charged to non-operating expenses.

Buildings 8 ~ 55 years
Machinery and equipment 5 years
Transportation equipment 4 ~ 5 years
Furniture and fixtures 2 ~ 14 years
Leased assets and leasehold improvements The lease period or estimated economic life, whichever is shorter

Intangible Assets

Effective January 1, 2006, goodwill generated from business combinations is no longer subject to amortization.

Technological know-how is stated at cost and amortized over its estimated economic life using the straight-line method.

An impairment loss will be recognized when the decreases in fair value of intangible assets are other than temporary. The book value after recognizing the impairment loss is recorded as the new cost.

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Deferred Charges

Deferred charges are stated at cost and amortized on a straight-line basis as follows: intellectual property license fees - select the shorter term of contract or estimated economic life of the related technology; and software - 3 years.

Prior to December 31, 2005, the issuance costs of convertible and exchangeable bonds were classified as deferred charges and amortized over the life of the bonds. Effective January 1, 2006, the unamortized amounts as of December 31, 2005 were reclassified as a bond discount and recorded as a deduction to bonds payable. The amounts are amortized using the effective interest method over the remaining life of the bonds. If the difference between the straight-line method and the effective interest method is immaterial, the amortization of the bond discount may be amortized using the straight-line method and recorded as the adjustment of interest expenses.

Convertible and Exchangeable Bonds

The excess of the stated redemption price over par value is accrued as interest payable and expensed over the redemption period using the effective interest method.

When convertible bondholders exercise their conversion rights, the book value of the bonds is credited to common stock at an amount equal to the par value of the common stock with the excess credited to additional paid-in capital. No gain or loss is recognized on bond conversion.

When exchangeable bondholders exercise their right to exchange their bonds for reference shares, the book value of the bonds is offset against the book value of the investments in reference shares and the related consolidated stockholders’ equity accounts, with the difference recognized as a gain or loss on disposal of investments.

In accordance with ROC SFAS No. 34, “Financial Instruments: Recognition and Measurement,” effective as of January 1, 2006, since the economic and risk characteristics of the embedded derivative instrument and the host contract are not clearly and closely related, derivative financial instruments embedded in exchangeable bonds shall be bifurcated and accounted as financial liabilities at fair value through profit or loss.

Pension Plan

All regular employees are entitled to a defined benefit pension plan that is managed by an independently administered pension fund committee. Fund assets are deposited in the committee’s name in the Bank of Taiwan and hence, not associated with UMC. Therefore, fund assets are not to be included in the Company’s consolidated financial statements. Pension benefits for employees of the Branch and overseas subsidiaries are provided in accordance with the local regulations.

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The Labor Pension Act of the ROC (the Act), which adopts a defined contribution plan, became effective on July 1, 2005. Employees subject to the Labor Standards Law, a defined benefit plan, were allowed to choose to either elect the pension calculation under the Act or continue to be subject to the pension calculation under the Labor Standards Law. Those employees that elected to be subject to the Act will have their seniority achieved under the Labor Standards Law retained upon election of the Act, and the Company will make monthly contributions of no less than 6% of these employees’ monthly wages to the employees’ individual pension accounts.

The accounting for UMC’s pension liability is computed in accordance with ROC SFAS No.18. Net pension costs of the defined benefit plan are recorded based on an actuarial valuation. Pension cost components such as service cost, interest cost, expected return on plan assets, the amortization of net obligation at transition, pension gain or loss, and prior service cost, are all taken into consideration by the actuary. UMC recognizes expenses from the defined contribution pension plan in the period in which the contribution becomes due.

Employee Stock Option Plan

The Company uses intrinsic value method to recognize compensation cost for its employee stock options issued since January 1, 2004. Under the intrinsic value method, the Company recognizes the difference between the market price of the stock on date of grant and the exercise price of its employee stock option as compensation cost. The Company also discloses pro forma net income and earnings per share under the fair value method for options granted since January 1, 2004.

Treasury Stock

The Company adopted ROC SFAS No. 30, “Accounting for Treasury Stocks” which requires that treasury stock held by the Company to be accounted for under the cost method. The cost of treasury stock is shown as a deduction to consolidated stockholders’ equity, while any gain or loss from selling treasury stock is treated as an adjustment to additional paid-in capital. The Company’s stock held by its subsidiaries is also treated as treasury stock. Cash dividends received by subsidiaries from the Company are recorded as additional paid-in capital—treasury stock transactions.

Revenue Recognition

The Company recognizes revenue when persuasive evidence of an arrangement exists, the product or service has been delivered, the seller’s price to the buyer is fixed or determinable and collectibility is reasonably assured. Most of the Company’s sales transactions have shipping terms of Free on Board (FOB) or Free Carrier (FCA) shipment in which title and the risk of loss or damage is transferred to the customer upon delivery of the product to a carrier approved by the customer.

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Allowance for sales returns and discounts are estimated by taking into consideration of customer complaints, historical experiences, management judgment and any other known factors that might significantly affect collectibility. Such allowances are recorded in the same period in which sales are made.

Research and Development Expenditures

Research and development expenditures are charged to expenses as incurred.

Capital Expenditures Versus Operating Expenditures

An expenditure is capitalized when it is probable that the Company will receive future economic benefits associated with the expenditure. Otherwise, the expenditure is expensed as incurred.

Income Tax

The Company adopted ROC SFAS No. 22, “Accounting for Income Taxes” for inter-period and intra-period income tax allocation. The provision for income taxes includes deferred income tax assets and liabilities that are a result of temporary differences between carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes, loss carry-forward and investment tax credits. A valuation allowance on deferred income tax assets is provided to the extent that it is more likely than not that the tax benefits will not be realized. A deferred tax asset or liability is classified as current or noncurrent in accordance with the classification of its related asset or liability. However, if a deferred tax asset or liability does not relate to an asset or liability in the financial statements, then it is classified as either current or noncurrent based on the expected reversal date of the temporary difference.

According to ROC SFAS No. 12, “Accounting for Income Tax Credits”, the Company recognizes the tax benefit from the purchase of equipment and technology, research and development expenditure, employee training, and certain equity investment by the flow-through method.

Income tax (10%) on unappropriated earnings is recorded as expense in the year in which the shareholders have resolved that the earnings shall be retained.

The Income Basic Tax Act of the R.O.C. (the IBTA) became effective on January 1, 2006. Set up by the Executive Yuan, the IBTA is a supplemental 10% tax that is payable if the income tax payable determined by the ROC Income Tax Act is below the minimum amount as prescribed by the IBTA. The IBTA is calculated based on taxable income as defined by the IBTA, which includes most income that is exempted from income tax under various legislations. The impact of the IBTA has been considered in the Company’s income tax for the current reporting period.

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Earnings per Share

Earnings per share is computed according to ROC SFAS No. 24, “Earnings Per Share.” Basic earnings per share is computed by dividing net income (loss) by the weighted-average number of common shares outstanding during the current reporting period. Diluted earnings per share is computed by taking basic earnings per share into consideration plus additional common shares that would have been outstanding if the dilutive share equivalents had been issued. Net income (loss) is also adjusted for interest and other income or expenses derived from any underlying dilutive share equivalents. The weighted-average of outstanding shares is adjusted retroactively for stock dividends and bonus share issues.

Asset Impairment

Pursuant to ROC SFAS No. 35, the Company assesses indicators of impairment for all its assets (except for goodwill) within the scope of the standard at each balance sheet date. If impairment is indicated, the Company compares the asset’s carrying amount with the recoverable amount of the assets or the cash-generating unit (CGU) associated with the asset and writes down the carrying amount to the recoverable amount where applicable. The recoverable amount is defined as the higher of fair value less the costs to sell and the values in use. For previously recognized losses, the Company assesses at the balance sheet date any indication that the impairment loss no longer exists or may have diminished. If there is any such indication, the Company recalculates the recoverable amount of the asset, and if the recoverable amount has increased as a result of the increase in the estimated service potential of the assets, the Company reverses the impairment loss so that the resulting carrying amount of the asset does not exceed the amount (net of amortization or depreciation) that would otherwise result had no impairment loss been recognized for the assets in prior years.

In addition, a goodwill-allocated CGU or group of CGUs is tested for impairment each year, regardless of whether impairment is indicated. If an impairment test reveals that the carrying amount, including goodwill, of CGU or group of CGUs is greater than its recoverable amount, there is an impairment loss. The loss is first recorded against the CGU’s goodwill, with any remaining loss allocated to other assets on a pro rata basis proportionate to their carrying amounts. The write-down of goodwill cannot be reversed in subsequent periods under any circumstances.

Impairment losses and reversals are classified as non-operating loss and income, respectively.

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  1. ACCOUNTING CHANGES

Goodwill

The Company adopted the amendments to ROC SFAS No. 1, “Conceptual Framework of Financial Accounting and Preparation of Financial Statements,” SFAS No. 5, “Long-Term Investments in Equity Securities,” and SFAS No. 25, “Business Combinations – Accounting Treatment under Purchase Method,” all of which have discontinued the amortization of goodwill effective January 1, 2006. As a result of adopting the revised SFAS No.1, revised SFAS No.5 and revised SFAS No.25 on January 1, 2006, the Company’s total assets as of June 30, 2006 are NT$440 million higher than if it had continued to account for goodwill under the prior year’s requirements. The consolidated net income and earnings per share for the six-month period ended June 30, 2006, are NT$440 million and NT$0.02 higher, respectively, than if the Company had continued to account for goodwill under the prior year’s requirements.

Financial Instruments

(1) The Company adopted ROC SFAS No. 34, “Financial Instruments: Recognition and Measurement” and SFAS No. 36, “Financial Instruments: Disclosure and Presentation” to account for the financial instruments effective January 1, 2006.

(2) The above changes in accounting principles increased the Company’s total assets, total liabilities, and stockholders’ equity as of January 1, 2006 by NT$24,246 million, NT$1,326 million, and NT$22,920 million, respectively; and resulted in an unfavorable cumulative effect of changes in accounting principles of NT$1,189 million deducted from consolidated net income, thereby reducing earnings per share by NT$0.06 for the six-month period ended June 30, 2006.

  1. CONTENTS OF SIGNIFICANT ACCOUNTS

(1) CASH AND CASH EQUIVALENTS

As of June 30, — 2007 2006
Cash
Cash on hand $ 2,880 $ 13,396
Checking and savings accounts 5,879,774 3,600,285
Time deposits 60,197,601 88,662,377
Subtotal 66,080,255 92,276,058
Cash equivalents 19,528,185 12,362,663
Total $ 85,608,440 $ 104,638,721

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(2) FINANCIAL ASSETS AT FAIR VALUE THROUGH PROFIT OR LOSS, CURRENT

Held for trading As of June 30, — 2007 2006
Listed stocks $ 7,686,348 $ 1,138,214
Convertible bonds 111,010 313,439
Open-end fund 4,900 54,410
Total $ 7,802,258 $ 1,506,063

During the six-month periods ended June 30, 2007 and 2006, net losses arising from the changes in fair value of financial assets at fair value through profit or loss, current, were NT$ 69 million and NT$250 million, respectively.

(3) HELD-TO-MATURITY FINANCIAL ASSETS

As of June 30, — 2007 2006
Credit-linked deposits and repackage bonds $ 200,000 $ 1,119,656
Less: Non-current portion — (340,200 )
Total $ 200,000 $ 779,456

(4) ACCOUNTS RECEIVABLE, NET

As of June 30, — 2007 2006
Accounts receivable $ 15,829,283 $ 15,340,782
Less: Allowance for sales returns and discounts (453,282 ) (743,998 )
Less: Allowance for doubtful accounts (2,479 ) (164,440 )
Net $ 15,373,522 $ 14,432,344

(5) INVENTORIES, NET

As of June 30, — 2007 2006
Raw materials $ 899,609 $ 975,028
Supplies and spare parts 2,065,283 1,935,813
Work in process 8,454,566 8,871,511
Finished goods 885,390 307,326
Total 12,304,848 12,089,678
Less: Allowance for loss on decline in market value and obsolescence (819,877 ) (988,113 )
Net $ 11,484,971 $ 11,101,565

Inventories were not pledged.

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(6) FINANCIAL ASSETS AT FAIR VALUE THROUGH PROFIT OR LOSS, NONCURRENT

As of June 30, — 2007 2006
Convertible bonds $ — $ 460,663

During the six-month periods ended June 30, 2007 and 2006, net gain (loss) arising from the changes in fair value of financial assets at fair value through profit or loss, noncurrent, were net loss of NT$17 million and net gain of NT$79 million, respectively.

(7) AVAILABLE-FOR-SALE FINANCIAL ASSETS, NONCURRENT

As of June 30, — 2007 2006
Common stock $ 60,571,122 $ 40,849,224
Preferred stock — 1,416,479
Total $ 60,571,122 $ 42,265,703

During the six-month periods ended June 30, 2007 and 2006, the total unrealized gain adjustment to consolidated stockholders’ equity due to changes in fair value of available-for-sale assets were NT$10,058 million and NT$6,747 million, respectively.

Additionally, the Company recognized gains of NT$3,737 million and NT$5,489 million due to the disposal of available-for-sale assets during the six-month periods ended June 30, 2007 and 2006, respectively.

(8) FINANCIAL ASSETS MEASURED AT COST, NONCURRENT

As of June 30, — 2007 2006
Common stock $ 4,976,467 $ 3,154,881
Preferred stock 2,457,709 2,051,715
Funds 448,474 613,525
Total $ 7,882,650 $ 5,820,121

(9) LONG-TERM INVESTMENTS ACCOUNTED FOR UNDER THE EQUITY METHOD

a. Details of long-term investments accounted for under the equity method are as follows:

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As of June 30, — 2007 2006
Investee Company Amount Percentage of Ownership or Voting Rights Amount Percentage of Ownership or Voting Rights
Listed companies
HOLTEK SEMICONDUCTOR INC. $ 903,961 23.12 $ 922,620 24.67
ITE TECH. INC. 380,738 21.62 347,675 22.04
UNIMICRON TECHNOLOGY CORP. (UNIMICRON) (Note A) — — 4,531,744 20.40
Subtotal 1,284,699 5,802,039
Unlisted companies
PACIFIC VENTURE CAPITAL CO., LTD. (PACIFIC) (Note B) 127,379 49.99 277,379 49.99
MTIC HOLDINGS PTE LTD 78,805 49.94 — —
ANOTO TAIWAN CORP. 27,169 49.00 38,466 49.00
Y.S. FINANCIAL ADVISORY CO., LTD 70,000 48.95 — —
UWAVE TECHNOLOGY CORP. (UWAVE) (Note C) — 48.64 53,778 48.64
UCA TECHNOLOGY INC. 35,179 48.33 69,543 49.50
SMEDIA TECHNOLOGY CORP. 130,963 47.72 49,496 38.25
MEGA MISSION LIMITED PARTNERSHIP 2,551,817 45.00 — —
AEVOE INTERNATIONAL LTD. 9,256 44.33 — —
ACHIEVE MADE INTERNATIONAL LTD. 25,610 43.29 — —
UNITECH CAPITAL INC. 1,122,669 42.00 746,830 42.00
WALTOP INTERNATIONAL CORP. 117,669 40.00 116,616 40.00
YUNG LI INVESTMENTS, INC. 202,724 37.04 — —
NEXPOWER TECHNOLOGY CORP. 295,176 36.66 6,672 40.00
HSUN CHIEH INVESTMENT CO., LTD. (Note D) 4,943,314 36.49 4,069,373 36.49
UC FUND II 252,127 35.45 135,476 35.45
CRYSTAL MEDIA INC. 51,300 34.03 9,558 34.36
XGI TECHNOLOGY INC. 72,600 31.56 118,723 31.66
ALLIANCE OPTOTEK CORP. 36,664 29.09 53,141 34.78
AMIC TECHNOLOGY CORP. 140,832 28.88 168,697 28.95
PARADE TECHNOLOGIES, LTD. 47,871 23.30 75,566 24.41
HIGH POWER LIGHTING CORP. 53,051 23.00 — —
AFA TECHNOLOGY, INC. 80,589 22.32 50,425 27.45

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As of June 30, — 2007 2006
Investee Company Amount Percentage of Ownership or Voting Rights Amount Percentage of Ownership or Voting Rights
MOBILE DEVICES INC. $ 24,791 21.16 $ 33,794 26.16
STAR SEMICONDUCTOR CORP. — — 40,076 41.52
AEVOE INC. — — 6,346 39.47
USBEST TECHNOLOGY INC. — — 67,969 33.80
HIGHLINK TECHNOLOGY CORP. (Note E) — — 401,827 30.62
U-MEDIA COMMUNICATIONS, INC. — — 29,019 26.26
EXCELLENCE OPTOELECTRONICS INC. — — 149,030 26.00
DAVICOM SEMICONDUCTOR, INC. — — 155,416 21.56
CHIP ADVANCED TECHNOLOGY INC. — — 21,490 21.47
Subtotal 10,497,555 6,944,706
Total $ 11,782,254 $ 12,746,745
Note A: As the UMC did not have significant influence after decreasing its percentage of ownership in UNIMICRON in November, 2006, the investee was classified as available-for-sale financial asset.
Note B: On June 27, 2006, PACIFIC set July 3, 2006 as its liquidation date through decision at its shareholders’ meeting. The liquidation has not been completed as of June 30, 2007
Note C: On June 29, 2007, UWAVE reached the decision of liquidation at its shareholders’ meeting. The liquidation has not been completed as of June 30, 2007
Note D: As of January 27, 2006, the Company sold 58.5 million shares of HSUN CHIEH. UMC’s ownership percentage decreased from 99.97% to 36.49%. As HSUN CHIEH ceased to be a subsidiary, UMC’s
stock held by HSUN CHIEH was reclassified from treasury stock to long-term investments accounted for under the equity method. The reclassification increased long-term investments accounted for under the equity method and stockholders’ equity by
NT$10,881 million.
Note E: As of March 1, 2007, HIGHLINK (an equity method investee) and EPITECH TECHNOLOGY CORP. (EPITECH) (accounted for as a noncurrent available-for-sale financial asset) merged into EPISTAR CORP. and
was continued as EPISTAR CORP. (classified as a noncurrent available-for-sale financial asset after the merger).
During the transaction, 5.5 shares of the HIGHLINK were exchanged for 1 share of EPISTAR CORP. and 3.08 shares of the EPITECH were exchanged for 1 share of EPISTAR CORP.

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b. Total gains arising from investments accounted for under the equity method were NT$530 million and NT$296 million for the six-month periods ended June 30, 2007 and 2006, respectively. Among which, investment income amounted to NT$ 463 million and NT$473 million for the six-month periods ended June 30, 2007 and 2006, respectively, and the related long-term investment balances of NT$ 7,219 million and NT$6,018 million as of June 30, 2007 and 2006, respectively, were determined based on the investees’ financial statements audited by other auditors.

c. The long-term investments were not pledged.

(10) PROPERTY, PLANT AND EQUIPMENT

As of June 30, 2007 — Cost Accumulated Depreciation Book Value
Land $ 1,857,774 $ — $ 1,857,774
Buildings 21,639,715 (7,188,345 ) 14,451,370
Machinery and equipment 431,657,331 (319,394,572 ) 112,262,759
Transportation equipment 85,883 (60,896 ) 24,987
Furniture and fixtures 3,067,345 (2,406,341 ) 661,004
Leasehold improvements 43,351 (40,905 ) 2,446
Construction in progress and prepayments 19,660,008 — 19,660,008
Total $ 478,011,407 $ (329,091,059 ) $ 148,920,348
As of June 30, 2006 — Cost Accumulated Depreciation Book Value
Land $ 1,901,659 $ — $ 1,901,659
Buildings 21,243,519 (6,427,320 ) 14,816,199
Machinery and equipment 400,335,575 (283,487,093 ) 116,848,482
Transportation equipment 90,084 (58,700 ) 31,384
Furniture and fixtures 2,919,197 (2,108,602 ) 810,595
Leasehold improvements 42,640 (39,388 ) 3,252
Construction in progress and prepayments 10,563,033 — 10,563,033
Total $ 437,095,707 $ (292,121,103 ) $ 144,974,604

a. Total interest expense before capitalization amounted to NT$153 million and NT$401 million for the six-month periods ended June 30, 2007 and 2006, respectively.

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Details of capitalized interest are as follows:

For the six-month period ended June 30, — 2007 2006
Machinery and equipment $ 54,965 $ —
Other property, plant and equipment 7,680 —
Total interest capitalized $ 62,645 $ —
Interest rates applied 0.67%~0.92 % —

b. The property, plant, and equipment were not pledged.

(11) OTHER ASSETS—OTHERS

As of June 30, — 2007 2006
Leased assets $ 1,224,825 $ 1,355,758
Deposits-out 752,062 636,630
Others 252,793 293,661
Total $ 2,229,680 $ 2,286,049

Please refer to Note 6 for deposits-out pledged as collateral.

(12) IMPAIRMENT

For the six-month period ended June 30 — 2007 2006
Available for sale financial assets, noncurrent $ 162,481 $ —
Financial assets measured at cost, noncurrent 86,074 —
Long-term investments accounted for under the equity method — 21,807
Total $ 248,555 $ 21,807

(13) SHORT-TERM LOANS

As of June 30, — 2007 2006
Unsecured bank loans $ 364,329 $ 340,518
Interest rates 3.28%~5.835 % 1.85%~5.94 %

a. The Company’s unused short-term lines of credits amounted to NT$12,401 million and NT$12,788 million as of June 30, 2007 and 2006, respectively.

b. Assets pledged as collateral to secure these loans are detailed in Note 6.

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(14) FINANCIAL LIABILITIES AT FAIR VALUE THROUGH PROFIT OR LOSS, CURRENT

As of June 30 — 2007 2006
Interest rate swaps $ 423,226 $ 633,039
Derivatives embedded in exchangeable bonds — 555,251
Forward contracts — 640
Total $ 423,226 $ 1,188,930

During the six-month periods ended June 30, 2007 and 2006, net gains arising from the changes in fair value of financial liabilities at fair value through profit or loss, current were NT$341 million and NT$106 million, respectively.

(15) BONDS PAYABLE

As of June 30 — 2007 2006
Unsecured domestic bonds payable $ 18,000,000 $ 25,250,000
Convertible bonds payable 13,956,129 17,884,222
Exchangeable bonds payable — 3,101,961
Add: premiums on convertible bonds — 6,205
Less: discounts on bonds payable (34,456 ) (120,985 )
Total 31,921,673 46,121,403
Less: current portion (24,426,911 ) (12,921,369 )
Net $ 7,494,762 $ 33,200,034

a. During the period from April 16 to April 27, 2001, UMC issued five-year and seven-year unsecured bonds totaling NT$15,000 million, each with face value of NT$7,500 million. The interest is paid annually with stated interest rates of 5.1195% through 5.1850% and 5.2170% through 5.2850%, respectively. The five-year bonds and seven-year bonds are repaid starting from April 2004 to April 2006 and April 2006 to April 2008, respectively, both in three annual installments at the rates of 30%, 30% and 40%. On April 27, 2006, the five-year bonds were fully repaid.

b. During the period from October 2 to October 15, 2001, UMC issued three-year and five-year unsecured bonds totaling NT$10,000 million, each with a face value of NT$5,000 million. The interest was paid annually with stated interest rates of 3.3912% through 3.420% and 3.4896% through 3.520%, respectively. On October 15, 2006 and 2004, the five-year bonds and the three-year bonds were fully repaid, respectively.

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c. On May 10, 2002, UMC issued zero coupon exchangeable bonds listed on the EuroMTF Market of the Luxembourg Stock Exchange (LSE). The terms and conditions of the bonds are as follows:

(a) Issue Amount: US$235 million

(b) Period: May 10, 2002 ~ May 10, 2007

(c) Redemption

i. UMC may redeem the bonds, in whole or in part, after three months of the issuance and prior to the maturity date, at their principal amount if the closing price of the AU Optronics Corp. (AUO) common shares on the TSE, translated into US dollars at the prevailing exchange rate, for a period of 20 consecutive trading days, the last of which occurs not more than 10 days prior to the date upon which notice of such redemption is published, is at least 120% of the exchange price then in effect translated into US dollars at the rate of NT$34.645=US$ 1.00.

ii. UMC may redeem the bonds, in whole, but not in part, if at least 90% in principal amount of the bonds has already been exchanged, redeemed or purchased and cancelled.

iii. UMC may redeem all, but not part, of the bonds, at any time, in the event of certain changes in the R.O.C. tax rules which would require UMC to gross up for payments of principal, or to gross up for payments of interest or premium.

iv. UMC will, at the option of the bondholders, redeem such bonds on February 10, 2005 at its principal amount.

(d) Terms of Exchange

i. Underlying securities: ADSs or common shares of AUO.

ii. Exchange Period: The bonds are exchangeable at any time on or after June 19, 2002 and prior to April 10, 2007, into AUO common shares or AUO ADSs; provided, however, that if the exercise date falls within 5 business days from the beginning of, and during, any closed period, the right of the exchanging holder of the bonds to vote with respect to the shares it receives will be subject to certain restrictions.

iii. Exchange Price and Adjustment: The exchange price is NT$44.3 per share, determined on the basis of a fixed exchange rate of NT$34.645=US$1.00. The exchange price will be subject to adjustments upon the occurrence of certain events set out in the indenture.

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(e) Exchange of the Bonds

As of June 30, 2007 and 2006, certain bondholders have exercised their rights to exchange their bonds with the total principal amount of US$235 million and US$139 million into AUO shares, respectively. Gains arising from the exercise of exchange rights during the six-month periods ended June 30, 2007 and 2006 amounted NT$2,782 million and NT$65 million, respectively, and were recognized as gains on disposal of investment.

(f) Redemption at maturity date

At the maturity date of May 10, 2007, the Company had redeemed the bonds at 100% of the unpaid principal amount of US$0.3 million outstanding.

d. During the period from May 21 to June 24, 2003, UMC issued five-year and seven-year unsecured bonds totaling NT$15,000 million, each with a face value of NT$7,500 million. The interest is paid annually with stated interest rates of 4.0% minus USD 12-Month LIBOR and 4.3% minus USD 12-Month LIBOR, respectively. Stated interest rates are reset annually based on the prevailing USD 12-Month LIBOR. The five-year bonds and seven-year bonds are repayable in 2008 and 2010, respectively, upon the maturity of the bonds.

e. On October 5, 2005, UMC issued zero coupon convertible bonds on the LSE. The terms and conditions of the bonds are as follows:

(a) Issue Amount: US$381.4 million

(b) Period: October 5, 2005 ~ February 15, 2008 (Maturity date)

(c) Redemption:

i. On or at any time after April 5, 2007, if the closing price of the ADSs listed on the NYSE has been at least 130% of either the conversion price or the last adjusted conversion price, for 20 out of 30 consecutive ADS trading days, UMC may redeem all, but not some only, of the bonds.

ii. If at least 90% in principal amount of the bonds have already been redeemed, repurchased, cancelled or converted, UMC may redeem all, but not some only, of the bonds.

iii. In the event that UMC’s ADSs or shares have officially ceased to be listed or admitted for trading on the New York Stock Exchange or the Taiwan Stock Exchange, as the case may be, each bondholder shall have the right, at such bondholder’s option, to require UMC to repurchase all, but not in part, of such bondholder’s bonds at their principal amount.

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iv. In the event of certain changes in taxation in the R.O.C. resulting in UMC becoming required to pay additional amounts, UMC may redeem all, but not in part, of the bonds at their principal amount; bondholders may elect not to have their bonds redeemed by UMC in such event, in which case the bondholders shall not be entitled to receive payments of such additional amounts.

v. If a change of control occurs with respect to UMC, each bondholder shall have the right at such bondholder’s option, to require UMC to repurchase all, but not in part, of such bondholder’s bonds at their principal amount.

vi. UMC will pay the principal amount of the bonds at its maturity date, February 15, 2008.

(d) Conversion:

i Conversion Period: Except for the closed period, the bonds may be converted into UMC’s ADSs on or after November 4, 2005 and on or prior to February 5, 2008.

ii Conversion Price and Adjustment: The conversion price is US$3.693 per ADS. The applicable conversion price will be subject to adjustments upon the occurrence of certain events set out in the indenture.

f. On March 25, 2002, UMC’s subsidiary, UMC JAPAN (UMCJ), issued LSE- listed zero coupon convertible bonds with an aggregate principal amount of JPY17,000 million and the issue price was set at 101.75% of the principal amount. The terms and conditions of the bonds are as follows:

(a) Final Redemption

Unless previously converted, purchased and cancelled or redeemed, the bonds must be redeemed on March 26, 2007 at their principal amount.

(b) Redemption at the Option of UMCJ

i. On or at any time after March 25, 2005, UMCJ may redeem all, but not part, of the bonds if the closing price of the shares on the Japan OTC Market is at least 120% of the conversion price then in effect for at least 20 out of 30 consecutive trading days ending on the trading day immediately prior to the date of the notice of redemption; or if the principal amount that has not been redeemed, repurchased and cancelled or converted is equal to or less than 10% of original aggregate principal amount.

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ii. In case of a corporate split or share exchange share transfer, UMCJ may redeem all, but not part, of the bonds on or prior to the effective date of the transaction, provided that UMCJ is not able to ensure that the bondholders have the right to receive shares which they would have received had the conversion rights been exercised prior to the transaction.

iii. If a change in who controls UMCJ occurs, bondholders will be able to require UMCJ to redeem their bonds on the date that is 85 days after the change of control occurs.

(c) Conversion Period

At any time on or after May 3, 2002 to and including March 19, 2007.

(d) Conversion Price

The conversion price was set at JPY400,000 per share, subject to adjustments upon the occurrence of certain events set out in the indenture.

(e) Reacquisition of the Bonds

As of June 30, 2007, UMCJ has reacquired and cancelled a total amount of JPY 11,630 million of the bonds from the open market. There was no reacquisition during the six-month period ended June 30, 2007.

As of June 30, 2006, UMCJ has reacquired and cancelled a total amount of JPY7,850 million and JPY7,650 million, respectively, of the bonds from the open market. There was no reacquisition during the six-month period ended June 30, 2006.

(f) Redemption at maturity date

At the maturity date of March 26, 2007, UMCJ had redeemed the bonds at 100% of the principal amount of JPY 5,370 million outstanding.

g. On November 25, 2003, UMCJ issued its second LSE-listed zero coupon convertible bonds with an aggregate principal amount of JPY21,500 million and the issue price was set at 101.25% of the principal amount. The terms and conditions of the bonds are as follows:

(a) Final Redemption

Unless previously converted, purchased and cancelled or redeemed, the bonds must be redeemed on November 25, 2013 at their principal amount.

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(b) Redemption at the Option of UMCJ

i. On or at any time after November 27, 2006, UMCJ may redeem all, but not part, of the bonds if the closing price of the shares on the Japan OTC Market is at least 120% of the conversion price then in effect for at least 20 out of 30 consecutive trading days ending on the trading day immediately prior to the date of the notice of redemption; or if the principal amount that has been redeemed, repurchased and cancelled or converted is equal to or less than 10% of original aggregate principal amount.

ii. In case of a corporate split or share exchange share transfer, UMCJ may redeem all, but not part, of the bonds on or prior to the effective date of the transaction, provided that UMCJ is not able to ensure that the bondholders have the right to receive shares which they would have received had the conversion rights been exercised prior to the transaction.

iii. If a change in who controls UMCJ occurs, bondholders will be able to require UMCJ to redeem their bonds on the date that is 70 days after the change of control occurs.

iv. UMCJ will, at the option of the bondholders, redeem such bonds on November 26, 2007 at its principal amount.

(c) Conversion Period

The conversion period may be any time on or after January 5, 2004 and on or prior to November 11, 2013.

(d) Conversion Price

The conversion price was set at JPY187,500 per share, subject to adjustment upon the occurrence of certain events set out in the indenture.

(e) Reacquisition of the Bonds

As of June 30, 2007, UMCJ has reacquired and cancelled JPY16,270 million and JPY8,430 million of the bonds from the open market. The corresponding gain on the reacquisition amounting to JPY22 million and it was recognized as other income.

As of June 30, 2006, UMCJ had reacquired JPY11,230 million from the open market and did not cancel any of the reacquired bonds. The corresponding gain on the reacquisition amounting to JPY17 million and it was recognized as other income.

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h. Repayments of the above-mentioned bonds in the future years are as follows:

(Assuming the convertible bonds is paid off upon maturity.)

Bonds repayable in Amount
2007 (3 rd quarter and
thereafter) $ 1,404,255
2008 23,051,874
2009 —
2010 7,500,000
2011 and thereafter —
Total $ 31,956,129

(16) PENSION PLAN

a. The Labor Pension Act of the R.O.C. (the Act), which adopts a defined contribution plan, became effective on July 1, 2005. Employees subject to the Labor Standards Law, a defined benefit plan, were allowed to choose to either elect the pension calculation under the Act or continue to be subject to the pension calculation under the Labor Standards Law. Those employees that elected to be subject to the Act will have their seniority achieved under the Labor Standards Law retained upon election of the Act, and UMC will make monthly contributions of no less than 6% of these employees’ monthly wages to the employees’ individual pension accounts. UMC and its domestic subsidiaries have made monthly contributions based on each individual employee’s salary or wage to employees’ pension accounts beginning July 1, 2005, and totaled of NT$196 million and NT$182 million were contributed by UMC and its domestic subsidiaries for the six-month periods ended June 30, 2007 and 2006, respectively. Pension benefits for employees of the Branch and subsidiaries overseas are provided in accordance with the local regulations, and during the six-month periods ended June 30, 2007 and 2006, the Company has made contributions of NT$63 million and NT$53 million, respectively.

b. The defined benefit plan under the Labor Standards Law is disbursed based on the units of service years and the average salary in the last month of the service year. Two units per year are awarded for the first 15 years of services while one unit per year is awarded after the completion of the fifteenth year. The total units shall not exceed 45 units. In accordance to the plan, UMC contributes an amount equivalent to 2% of the employees’ total salaries and wages on a monthly basis to the pension fund deposited at the Bank of Taiwan in the name of an administered pension fund committee. Pension costs amounting to NT$111 million and NT$130 million were recognized for the six-month periods ended June 30, 2007 and 2006, respectively. The corresponding balances of the pension fund were NT$1,253 million and NT$1,142 million as of June 30, 2007 and 2006, respectively.

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(17) CAPITAL STOCK

a. UMC had 26,000 million common shares authorized to be issued, and 18,845 million common shares were issued as of June 30, 2006, each at a par value of NT$10.

b. UMC had issued a total of 277 million ADSs, which were traded on the NYSE as of June 30, 2006. The total number of common shares of UMC represented by all issued ADSs was 1,384 million shares as of June 30, 2006. One ADS represents five common shares.

c. Among the employee stock options issued by UMC on October 7, 2002 and January 3, 2003, 47 million shares were exercised during the six-month period ended June 30, 2006. The issuance process through the authority had been completed.

d. On May 22, 2006, UMC cancelled 1,000 million shares of treasury stocks, which were bought back during the period from February 16, 2007 to April 11, 2006 for retention of UMC’s creditability and stockholders’ interests.

e. As recommended by the board of directors, and approved by the shareholders on the meeting held on June 12, 2006, UMC issued 225 million new shares from capitalization of retained earnings and additional paid-in capital that amounted to NT$2,249 million, of which NT$895 million was stock dividend, NT$459 million was employee bonus, and NT$895 million was additional paid-in capital. The issuance process through the authority had been completed.

f. UMC had 26,000 million common shares authorized to be issued, and 19,144 million shares were issued as of June 30, 2007, each at a par value of NT$10.

g. UMC had issued a total of 315 million ADSs, which were traded on the NYSE as of June 30, 2007. The total number of common shares of UMC represented by all issued ADSs was 1,576 million shares as of June 30, 2007. One ADS represents five common shares.

h. Among the employee stock options issued by UMC on October 7, 2002, January 3, 2003 and October 13, 2004, 12 million shares were exercised during the six-month period ended June 30, 2007. The issuance process through the authority had been completed.

i. Approved by the shareholder’s meeting on June 11, 2007, the Company had resolved to carry out a capital reduction of NT$ 57,394 million with the cancellation of 5,739 million of its outstanding shares. The capital reduction through the authority is still in process.

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(18) EMPLOYEE STOCK OPTIONS

On September 11, 2002, October 8, 2003, September 30, 2004, and December 22, 2005, the Company was authorized by the Securities and Futures Bureau of the Financial Supervisory Commission, Executive Yuan, to issue employee stock options with a total number of 1 billion, 150 million, 150 million, and 350 million units, respectively. Each unit entitles an optionee to subscribe to 1 share of the Company’s common stock. Settlement upon the exercise of the options will be made through the issuance of new shares by the Company. The exercise price of the options was set at the closing price of the Company’s common stock on the date of grant. The contractual life is 6 years and an optionee may exercise the options in accordance with certain schedules as prescribed by the plan starting 2 years from the date of grant. Detailed information relevant to the employee stock options is disclosed as follows:

Date of grant Total number of options granted (in thousands) Total number of options outstanding (in thousands) Exercise price (NTD)
October 7, 2002 939,000 531,986 $ 15.7
January 3, 2003 61,000 44,411 $ 17.7
November 26, 2003 57,330 44,910 $ 24.7
March 23, 2004 33,330 21,575 $ 22.9
July 1, 2004 56,590 43,590 $ 20.7
October 13, 2004 20,200 12,332 $ 17.8
April 29, 2005 23,460 17,145 $ 16.4
August 16, 2005 54,350 39,160 $ 21.6
September 29, 2005 51,990 44,974 $ 19.7
January 4, 2006 39,290 28,130 $ 17.7
May 22, 2006 42,058 35,200 $ 19.2
August 24, 2006 28,140 24,070 $ 18.4

a. A summary of the Company’s stock option plans, and related information for the six-month periods ended June 30, 2007 and 2006 are as follows:

For the six-month period ended June 30,
2007 2006
Option (in thousands) Weighted-average Exercise Price (NTD) Option (in thousands) Weighted-average Exercise Price (NTD)
Outstanding at beginning of period 913,958 $ 17.5 975,320 $ 17.3
Granted — $ — 81,348 $ 18.4
Exercised (11,918 ) $ 15.7 (46,871 ) $ 15.7
Forfeited (14,557 ) $ 19.7 (32,891 ) $ 18.6
Outstanding at end of period 887,483 $ 17.5 976,906 $ 17.4

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For the six-month period ended June 30, — 2007 2006
Option (in thousands) Weighted-average Exercise Price (NTD) Option (in thousands) Weighted-average Exercise Price (NTD)
Exercisable at end of period 662,435 $ 16.7 502,264 $ 16.5
Weighted-average fair value of options granted during the year (NTD) $ — $ 5.9

b. The information of the Company’s outstanding stock options as of June 30, 2007 is as follows:

Authorization Date Range of Exercise Price Outstanding Stock Options — Option (in thousands) Weighted-average Expected Remaining Years Weighted-average Exercise Price (NTD) Exercisable Stock Options — Option (in thousands) Weighted-average Exercise Price (NTD)
2002.09.11 $ 15.7 to $17.7 576,397 1.29 $ 15.9 576,133 $ 15.9
2003.10.08 $ 20.7 to $24.7 110,075 2.70 $ 22.8 72,405 $ 23.1
2004.09.30 $ 16.4 to $21.6 113,611 4.04 $ 19.7 13,897 $ 17.0
2006.12.22 $ 17.7 to $19.2 87,400 4.84 $ 18.5 — $ —
887,483 2.17 $ 17.5 662,435 $ 16.7

c. The Company uses intrinsic value method to recognize compensation costs for its employee stock options issued since January 1, 2004. The compensation costs for the six-month periods ended June 30, 2007 and 2006 are nil because the Company grants options with the exercise price equal to the current market price. Pro forma information using the fair value method on net income and earnings per share is as follows:

For the six-month period ended June 30, 2007 — Basic earnings per share Diluted earnings per share
Net income $ 6,369,668 $ 6,497,263
Earnings per share (NTD) $ 0.36 $ 0.35
Pro forma net income $ 6,166,802 $ 6,294,397
Pro forma earnings per share (NTD) $ 0.35 $ 0.34

| | For the six-month period ended June 30, 2006 (retroactively
adjusted) — Basic earnings per share | Diluted earnings per share |
| --- | --- | --- |
| Net income | $ 18,337,788 | $ 18,175,519 |
| Earnings per share (NTD) | $ 1.00 | $ 0.96 |
| Pro forma net income | $ 18,147,409 | $ 17,985,140 |
| Pro forma earnings per share (NTD) | $ 0.99 | $ 0.95 |

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The fair value of the options granted was estimated at the date of grant using the Black-Scholes option pricing model with the following assumptions for the six-month periods ended June 30, 2006: expected dividend yield of 1.37%; volatility factor of the expected market price of the Company’s common stock of 37.09%~41.14%; risk-free interest rate of 1.88%~2.28%; and expected life of the options of 4~5 years.

(19) TREASURY STOCK

a. UMC bought back its own shares from the open market during the six-month periods ended June 30, 2007 and 2006. Details of the treasury stock transactions are as follows:

For the six-month period ended June 30, 2007

( In thousands of shares )

Purpose As of January 1, 2007 Increase Decrease As of June 30, 2007
For transfer to employees 842,067 — — 842,067
For conversion of the convertible bonds into shares 500,000 — — 500,000
Total shares 1,342,067 — — 1,342,067

For the six-month period ended June 30, 2006

( In thousands of shares )

Purpose As of January 1, 2006 Increase Decrease As of June 30, 2006
For transfer to employees 442,067 243,171 — 685,238
For conversion of the convertible bonds into shares 500,000 — — 500,000
For retainment of UMC’s creditability and stockholders’ interests — 1,000,000 1,000,000 —
Total shares 942,067 1,243,171 1,000,000 1,185,238

b. According to the Securities and Exchange Law of the R.O.C., the total shares of treasury stock shall not exceed 10% of the UMC’s issued stock, and the total purchase amount shall not exceed the sum of the retained earnings, additional paid-in capital – premiums, and realized additional paid-in capital. As such, the maximum shares of treasury stock that UMC could hold as of June 30, 2007 and 2006, were 1,914 million shares and 1,885 million shares, while the ceiling amount were NT$86,687 million and NT$80,233 million, respectively.

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c. In compliance with Securities and Exchange Law of the R.O.C., treasury stock should not be pledged, nor should it be entitled to voting rights or receive dividends. Stock held by subsidiaries is treated as treasury stock. These subsidiaries have the same rights as other stockholders except for subscription to new stock issuance. Starting June 22, 2005, stocks held by subsidiaries no longer have voting rights according to the revised Companies Act.

d. As of June 30, 2007, UMC’s subsidiary, FORTUNE VENTURE CAPITAL CORP., held 22 million shares of UMC’s stock, with a book value of NT$19.85 per share. The closing price on June 30, 2007 was NT$19.85.

As of June 30, 2006, UMC’s subsidiaries, FORTUNE VENTURE CAPITAL CORP., held 22 million shares of UMC’s stock, with a book value of NT$19.40 per share. The closing price of UMC’s stock during June 30, 2006 was NT$19.40.

(20) RETAINED EARNINGS AND DIVIDEND POLICIES

According to UMC’s Articles of Incorporation, current year’s earnings, if any, shall be distributed in the following order:

a. Payment of all taxes and dues;

b. Offset prior years’ operation losses;

c. Set aside 10% of the remaining amount after deducting items (a) and (b) as a legal reserve;

d. Set aside 0.1% of the remaining amount after deducting items (a), (b), and (c) as directors’ and supervisors’ remuneration; and

e. After deducting items (a), (b), and (c) above from the current year’s earnings, no less than 5% of the remaining amount together with the prior years’ unappropriated earnings is to be allocated as employees’ bonus, which will be settled through issuance of new shares of UMC, or cash. Employees of UMC’s subsidiaries, meeting certain requirements determined by the board of directors, are also eligible for the employees’ bonus.

f. The distribution of the remaining portion, if any, will be recommended by the board of directors and subject to the shareholders’ approval.

The policy for dividend distribution should reflect factors such as the current and future investment environment, fund requirements, domestic and international competition and capital budgets; as well as the benefit of shareholders, share bonus equilibrium, and long-term financial planning. The board of directors shall make the distribution proposal annually and present it at the shareholders’ meeting. UMC’s Articles of Incorporation further provide that no more than 80% of the dividends to shareholders, if any, may be paid in the form of stock dividends. Accordingly, at least 20% of the dividends must be paid in the form of cash.

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The distributions of retained earnings for the years 2006 and 2005 were approved through the shareholders’ meetings held on June 11, 2007 and June 12, 2006, respectively. The details of distribution are as follows:

2006 2005
Cash Dividend $ 0.70 per share $ 0.40 per share
Stock Dividend — $ 0.05 per share
Employees’ bonus – Cash Dividend (NTD thousands) 2,324,120 305,636
Employees’ bonus – Stock Dividend (NTD thousands) — 458,455
Directors’ and Supervisors’ remuneration (NTD thousands) 15,494 6,324

Pursuant to Article 41 of the Securities and Exchange Law of the R.O.C., a special reserve is set aside from the current net income and unappropriated earnings for items that are accounted for as deductions to consolidated stockholders’ equity such as unrealized loss on long-term investment and cumulative translation adjustments. However, there are the following exceptions for UMC’s investees’ unrealized loss on long-term investments arising from the merger, which was recognized by UMC in proportion to UMC’s ownership percentage:

a. According to the explanatory letter No. 101801 of the Securities and Futures Commission (SFC), if UMC recognizes the investees’ additional paid-in capital - excess from the merger in proportion to the ownership percentage, then the special reserve is exempted for the amount originated from the acquisition of the long-term investments.

b. If UMC and its investees transfer a portion of the additional paid-in capital to increase capital, a special reserve equal to the amount of the transfer shall be provided according to the explanatory letter No. 101801-1 of the SFC.

c. In accordance with the explanatory letter No. 170010 of the SFC applicable to listed companies, in the case where the market value of UMC’s stock held by its subsidiaries at period-end is lower than the book value, a special reserve shall be provided in UMC’s accounts in proportion to its ownership percentage.

For the 2005 appropriations approved by the shareholders’ meeting on June 12, 2006, unrealized loss on long-term investments exempted from the provision of special reserve pursuant to the above regulations amounted to NT$18,208 million.

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(21) OPERATING COSTS AND EXPENSES

The Company’s personnel, depreciation, and amortization expenses are summarized as follows:

For the six-month period ended June 30,
2007 2006
Operating costs Operating expenses Total Operating costs Operating expenses Total
Personnel expenses
Salaries $ 4,951,304 $ 1,907,137 $ 6,858,441 $ 3,758,861 $ 1,420,755 $ 5,179,616
Labor and health insurance 276,267 102,040 378,307 269,519 98,155 367,674
Pension 277,286 92,722 370,008 274,871 89,604 364,475
Other personnel expenses 52,804 35,903 88,707 146,977 63,564 210,541
Depreciation 17,511,805 1,019,972 18,531,777 22,473,868 1,130,829 23,604,697
Amortization 39,973 608,625 648,598 106,526 839,356 945,882

(22) INCOME TAX

a. Reconciliation between the income tax expense and the income tax calculated on pre-tax financial statement income based on the statutory tax rate is as follows:

For the six-month period ended June 30, — 2007 2006
Income tax on pre-tax income at statutory tax rate $ 2,498,211 $ 5,012,988
Permanent and temporary differences (2,464,882 ) (4,478,501 )
Change in investment tax credit 2,456,272 (340,595 )
Change in loss carry-forward 83,766 —
Change in valuation allowance (2,081,677 ) 79,728
Income Basic Tax 313,163 1,171,439
Estimated 10% income tax on unappropriated earnings 9 —
Adjustment of prior year’s tax expense (26,165 ) (15,684 )
Income tax on interest revenue separately taxed 402 432
Others 13,900 (16,649 )
Income tax expense $ 792,999 $ 1,413,158

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b. Significant components of deferred income tax assets and liabilities are as follows:

As of June 30,
2007 2006
Amount Tax effect Amount Tax effect
Deferred income tax assets
Investment tax credit $ 12,536,459 $ 14,024,212
Depreciation $ 24,612 9,664 $ 184,795 74,357
Loss carry-forward 9,977,827 3,254,694 15,931,330 4,732,244
Pension 3,144,611 787,587 3,052,004 762,700
Allowance on sales returns and discounts 376,246 94,929 746,888 188,003
Allowance for loss on decline in market value and obsolescence of inventories 739,808 192,060 795,498 198,875
Others 1,827,514 492,290 1,871,165 533,759
Total deferred income tax assets 17,367,683 20,514,150
Valuation allowance (9,795,583 ) (11,134,292 )
Net deferred income tax assets 7,572,100 9,379,858
Deferred income tax liabilities
Unrealized exchange gain (613 ) (153 ) (469,917 ) (117,479 )
Depreciation (5,732,562 ) (1,433,140 ) (6,078,835 ) (1,519,709 )
Others (2,303,760 ) (559,710 ) (2,381,102 ) (615,984 )
Total deferred income tax liabilities (1,993,003 ) (2,253,172 )
Total net deferred income tax assets $ 5,579,097 $ 7,126,686
Deferred income tax assets – current $ 5,163,000 $ 6,242,469
Deferred income tax liabilities – current (205,650 ) (322,977 )
Valuation allowance (2,796,396 ) (3,153,314 )
Net 2,160,954 2,766,178
Deferred income tax assets – noncurrent 12,204,683 14,271,681
Deferred income tax liabilities – noncurrent (1,787,353 ) (1,930,195 )
Valuation allowance (6,999,187 ) (7,980,978 )
Net 3,418,143 4,360,508
Total net deferred income tax assets $ 5,579,097 $ 7,126,686

c. UMC’s income tax returns for all the fiscal years up to 2003 have been assessed and approved by the ROC Tax Authority.

39

d. UMC was granted several four or five-year income tax exemption periods with respect to income derived from the expansion of operations. The starting dates of the exemption periods attributable to the expansion in 2002 and 2003 have not yet been decided. The income tax exemption for other periods will expire on December 31, 2012.

e. The Company earns investment tax credits for the amount invested in production equipment, research and development, and employee training.

As of June 30, 2007, the Company’s unused investment tax credits were as follows:

Expiration Year Investment tax credits earned Balance of unused investment tax credits
2007 $ 1,641,210 $ 652,097
2008 6,317,344 6,317,344
2009 2,572,677 2,572,677
2010 1,644,802 1,644,802
2011 1,349,539 1,349,539
Total $ 13,525,572 $ 12,536,459

f. Under the rules of the Income Tax Law of the R.O.C., net losses can be carried forward for 5 years. As of June 30, 2007, the unutilized accumulated losses were as follows:

Expiration Year Accumulated losses Unutilized Accumulated losses
2007 $ 3,832,325 $ 3,832,325
2008 188,313 188,313
2009 502,737 502,737
2010 392,049 392,049
2011 184,246 184,246
2012 3,460,281 3,460,281
2013 937,444 937,444
2014 480,432 480,432
Total $ 9,977,827 $ 9,977,827

g. The expected creditable ratio for 2006 and the actual creditable ratio for 2005 was 11.88% and 0%, respectively.

June 30, 2006 June 30, 2006
Imputation credit $ 2,112,438 $ 9,224

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h. UMC’s earnings generated in the year ended December 31, 1997 and prior years have been fully appropriated.

(23) EARNINGS PER SHARE

a. The Company’s capital structure is composed mainly of zero coupon convertible bonds and employee stock options. Therefore, in consideration of such complex structure, the calculated basic and diluted earnings per share for the six-month periods ended June 30, 2007 and 2006, are disclosed as follows:

For the six-month period ended June 30, 2007
Amount Earnings per share-basic (NTD)
Income before income tax Net income Shares expressed in thousands Income before income tax Net income
Earning per share-basic (NTD)
Income from operations of continued segments attributable to shareholders of the parent $ 7,182,782 $ 6,369,668 17,777,875 $ 0.40 $ 0.36
Cumulative effect of changes in accounting principles attributable to shareholders of the parent — — — —
Net income $ 7,182,782 $ 6,369,668 $ 0.40 $ 0.36
Effect of dilution
Employee stock options $ — $ — 122,417
Convertible bonds payable 133,258 127,595 516,382
Earning per share-diluted:
Income from operations of continued segments attributable to shareholders of the parent $ 7,316,040 $ 6,497,263 18,416,674 $ 0.39 $ 0.35
Cumulative effect of changes in accounting principles attributable to shareholders of the parent — — — —
Net income $ 7,316,040 $ 6,497,263 $ 0.39 $ 0.35

41

For the six-month period ended June 30, 2006 (retroactively adjusted)
Amount Earnings per share-basic (NTD)
Income before income tax Net income Shares expressed in thousands Income before income tax Net income
Earning per share-basic (NTD)
Income from operations of continued segments attributable to shareholders of the parent $ 20,938,154 $ 19,526,303 18,382,155 $ 1.14 $ 1.06
Cumulative effect of changes in accounting principles attributable to shareholders of the parent (1,188,515 ) (1,188,515 ) (0.06 ) (0.06 )
Net income $ 19,749,639 $ 18,337,788 $ 1.08 $ 1.00
Effect of dilution
Employee stock options $ — $ — 131,297
Convertible bonds payable (156,606 ) (162,269 ) 516,382
Earning per share-diluted:
Income from operations of continued segments attributable to shareholders of the parent 20,781,548 19,364,034 19,029,834 $ 1.09 $ 1.02
Cumulative effect of changes in accounting principles attributable to shareholders of the parent (1,188,515 ) (1,188,515 ) (0.06 ) (0.06 )
Net income $ 19,593,033 $ 18,175,519 $ 1.03 $ 0.96
  1. RELATED PARTY TRANSACTIONS

(1) Name and Relationship of Related Parties

Name of related parties Relationship with UMC
UNITECH CAPITAL INC. Equity Investee
MEGA MISSION LIMITED PARTNERSHIP Equity Investee
MTIC HOLDINGS PTE. LTD. Equity Investee
HSUN CHIEH INVESTMENT CO., LTD. Equity Investee
HOLTEK SEMICONDUCTOR INC. (HOLTEK) Equity Investee
ITE TECH. INC. Equity Investee
AMIC TECHNOLOGY CORP. Equity Investee
PACIFIC VENTURE CAPITAL CO., LTD. Equity Investee
XGI TECHNOLOGY INC. Equity Investee
HIGHLINK TECHNOLOGY CORP. (merged into EPISTAR CORP. since March 2007) Equity Investee

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Name of related parties Relationship with UMC
NEXPOWER TECHNOLOGY CORP. Equity Investee
SILICON INTEGRATED SYSTEMS CORP. (SIS) UMC’s director
UWAVE TECHNOLOGY CORP. Subsidiary’s equity investee
UCA TECHNOLOGY INC. Subsidiary’s equity investee
AFA TECHNOLOGY, INC. Subsidiary’s equity investee
STAR SEMICONDUCTOR CORP. (No longer an subsidiary’s equity investee since March 2007) Subsidiary’s equity investee
USBEST TECHNOLOGY INC. (No longer an subsidiary’s equity investee since February 2007) Subsidiary’s equity investee
SMEDIA TECHNOLOGY CORP. Subsidiary’s equity investee
U-MEDIA COMMUNICATIONS, INC. Subsidiary’s equity investee
CRYSTAL MEDIA INC. Subsidiary’s equity investee
MOBILE DEVICES INC. Subsidiary’s equity investee
CHIP ADVANCED TECHNOLOGY INC. Same chairman with the Company’s subsidiary

(2) Significant Related Party Transactions

a. Operating revenues

For the six-month period ended June 30, — 2007 2006
Amount Percentage Amount Percentage
SIS $ 426,549 1 $ 1,878,351 3
Others 840,616 2 815,173 2
Total $ 1,267,165 3 $ 2,693,524 5

The sales price to the above related parties was determined through mutual agreement based on the market conditions. The collection period for overseas sales to related parties was net 60 days, while the terms for domestic sales were month-end 45~60 days. The collection period for third party overseas sales was net 30~60 days, while the terms for third party domestic sales were month-end 30~60 days.

b. Notes receivable

As of June 30, — 2007 2006
Amount Percentage Amount Percentage
HOLTEK $ 44,134 93 $ 68,752 42
Others — — 36 —
Total $ 44,134 93 $ 68,788 42

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c. Accounts receivable, net

As of June 30, — 2007 2006
Amount Percentage Amount Percentage
SIS $ 69,244 1 $ 342,930 2
Others 343,934 2 319,428 2
Total 413,178 3 662,358 4
Less: Allowance for sales returns and discounts (7,316 ) (17,887 )
Less: Allowance for doubtful accounts — (5,440 )
Net $ 405,862 $ 639,031
  1. ASSETS PLEDGED AS COLLATERAL

The assets pledged of the Company were as follows:

As of June 30, 2007

Amount Party to which asset(s) was pledged Purpose of pledge
Deposit-out $ 621,597 Customs Customs duty
(Time deposit) guarantee

As of June 30, 2006

Amount Party to which asset(s) was pledged Purpose of pledge
Deposit-out $ 525,846 Customs Customs duty
(Time deposit) guarantee
  1. COMMITMENTS AND CONTINGENT LIABILITIES

(1) UMC has entered into several patent license agreements and development contracts of intellectual property for a total contract amount of approximately NT$19.5 billion. Royalties and development fees for the future years are NT$5.2 billion as of June 30, 2007.

(2) UMC signed several construction contracts for the expansion of its factory space. As of June 30, 2007, these construction contracts have amounted to approximately NT$5.2 billion and the unpaid portion of the contracts, which was not accrued, was approximately NT$2.2 billion.

44

(3) The Company entered into several operating lease contracts for land. These renewable operating leases are set to expire in various years through to 2032 and are renewable. Future minimum lease payments under those leases are as follows:

For the year ended December 31, Amount
2007 (3 rd quarter and
thereafter) $ 145,688
2008 284,330
2009 267,194
2010 254,856
2011 247,690
2012 and thereafter 2,120,608
Total $ 3,320,366

(4) UMC entered into several wafer-processing contracts with its principal customers. According to the contracts, UMC shall guarantee processing capacity, while these customers make deposits to UMC.

(5) UMC has entered into contracts for the purchase of materials and masks with certain vendors. As of June 30, 2007, the commitment of these construction contracts has amounted to approximately NT$6.6 billion, and the unpaid portion of the contracts, which was not accrued, was approximately NT$4.7 billion.

(6) On February 15, 2005, the Hsinchu District Prosecutor’s Office conducted a search of UMC’s facilities. On February 18, 2005, UMC’s former Chairman Mr. Robert H.C. Tsao, released a public statement, explaining that its assistance to Hejian Technology Corp. (Hejian) did not involve any investment or technology transfer. Furthermore, from the very beginning there was a verbal indication that, at the proper time, UMC would be compensated appropriately for its assistance, and circumstances permitting, at some time in the future, it will push through the merger between two companies. However, no promise was made by UMC and no written agreement was made and executed. Upon UMC’s request to materialize the said verbal indication by compensating in the form of either cash or equity, the Chairman of the holding company of Hejian offered 15% of the approximately 700 million outstanding shares of the holding company of Hejian in return for UMC’s past assistance and for continued assistance in the future.

Immediately after UMC had received such offer, it filed an application with the Investment Commission of the Ministry of Economic Affairs on March 18, 2005 (Ref. No. 94-Lian-Tung-Tzu-0222), for their executive guidance for the successful transfer of said shares to UMC. The shareholders meeting dated June 13, 2005 resolved that to the extent permitted by law UMC shall try to get the 15% of the outstanding shares offered by the holding company of Hejian as an asset of UMC.

45

The holding company of Hejian offered 106 million shares of its outstanding common shares in return for UMC’s assistance. The holding company of Hejian has put all such shares in escrow. UMC was informed of such escrow on August 4, 2006. The subscription price per share of the holding company of Hejian in the last offering was US$1.1. Therefore, the total market value of the said shares is worth more than US$110 million. However, UMC may not acquire the ownership of nor exercise the rights of the said shares with any potential stock dividend or cash dividend distributed in the future until the ROC laws and regulations allow UMC to acquire and exercise. In the event that any stock dividend or cash dividend is distributed, UMC’s stake in the holding company of Hejian will accumulate accordingly.

In April 2005, UMC’s former Chairman Mr. Robert H.C. Tsao was personally fined with in the aggregate amount of NT$3 million by the Financial Supervisory Commission, Executive Yuan, R.O.C. (ROC FSC) for failure to disclose material information relating to Hejian in accordance with applicable rules. As a result of the imposition of the fines by the ROC FSC, UMC was also fined in the amount of NT$30,000 by Taiwan Stock Exchange (TSE) for the alleged non-compliance with the disclosure rules in relation to the material information. UMC and its former Chairman Mr. Robert H.C. Tsao have filed for administrative appeal and reconsideration with the Executive Yuan, R.O.C. and TSE, respectively. Mr. Robert H.C. Tsao’s administrative appeal was dismissed by the Execution Yuan, R.O.C. on February 21, 2006 and the ROC FSC transferred the case against Mr. Robert H.C. Tsao to the Administrative Enforcement Agency for enforcement of the fine. Mr. Robert H.C. Tsao has filed an administrative action against the ROC FSC with Taipei High Administrative Court on April 14, 2006. As of June 30, 2007, the result of such reconsideration and administrative action has not been finalized. The case is being processed in Taipei High Administrative Court.

For UMC’s assistance to Hejian Technology Corp., UMC’s former Chairman Mr. Robert H.C. Tsao, former Vice Chairman Mr. John Hsuan, and Mr. Duen-Chian Cheng, the General Manager of Fortune Venture Capital Corp., which is 99.99% owned by UMC, were indicted for violating the Business Entity Accounting Law and breach of trust under the Criminal Law by Hsinchu District Court’s Prosecutor’s Office on January 9, 2006. Mr. Robert H.C. Tsao and Mr. John Hsuan had officially resigned from their positions of UMC’s Chairman, Vice Chairman and directors prior to the announcement of the prosecution; for this reason, at the time of the prosecution, Mr. Robert H.C. Tsao and Mr. John Hsuan no longer served as UMC’s directors and had not executed their duties as UMC’s Chairman and Vice Chairman. In the future, if a guilty judgment is pronounced by the court, such consequences would be Mr. Robert H.C. Tsao, Mr. John Hsuan and Mr. Duen-Chian Cheng’s personal concerns only; UMC would not be subject to indictment regarding this case.

46

On February 15, 2006, UMC was fined in the amount of NT$5 million for unauthorized investment activities in Mainland China, implicating violation of Article 35 of the Act “Governing Relations Between Peoples of the Taiwan Area and the Mainland Area” by the R.O.C. Ministry of Economic Affairs (MOEA). However, as UMC believes it was illegally and improperly fined, UMC had filed an administrative appeal against MOEA to the Executive Yuan on March 16, 2006. On October 19, 2006, Executive Yuan denied the administrative appeal filed by UMC. UMC had filed an administrative litigation case against MOEA on December 8, 2006. Taipei High Administrative Court had announced and reversed MOEA’s administrative sanction on July 19, 2007. As of the reporting date, UMC is not aware whether MOEA has had an appeal against UMC.

  1. SIGNIFICANT DISASTER LOSS

None.

  1. SIGNIFICANT SUBSEQUENT EVENT

On July 17, 2007 the Company cancelled 192 million shares of treasury stocks, which were bought back during the period from March 24, 2004 to May 23, 2004 for transfer to employees.

  1. OTHERS

(1) Certain comparative amounts have been reclassified to conform to the current year’s presentation.

(2) Financial risk management objectives and policies

UMC’s principal financial instruments, other than derivatives, is comprise of cash and cash equivalents, common stock, preferred stock, convertible bonds, open-end funds, bank loans, and bonds payable. The main purpose of these financial instruments is to manage financing for UMC’s operations. UMC also holds various other financial assets and liabilities such as accounts receivable and accounts payable, which arise directly from its operations.

UMC also enters into derivative transactions, including credit-link deposits, interest rate swaps and forward currency contracts. The purpose of these derivative transactions is to mitigate interest rate risk and foreign currency exchange risks arising from UMC’s operations and financing activities.

The main risks arising from UMC’s financial instruments include cash flow interest rate risk, foreign currency risk, commodity price risk, credit risk, and liquidity risk.

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Cash flow interest rate risk

UMC utilizes interest rate swap agreements to avoid its cash flow interest rate risk on its counter-floating rate of unsecured domestic bonds issued during the period from May 21 to June 24, 2003. The periods of the interest rate swap agreements are the same as those of the domestic bonds, which are five and seven years. The floating rate is reset annually.

Foreign currency risk

UMC has foreign currency risk arising from purchases or sales. UMC utilizes spot or forward contracts to avoid foreign currency risk. UMC buys or sells the same amount of foreign currency with hedged through forward hedging items for contracts. In principal, UMC does not carry out any forward contracts for uncertain commitments.

Commodity price risk

UMC’s exposure to commodity price risk is minimal.

Credit risk

UMC trades only with established and creditworthy third parties. It is UMC’s policy that all customers who wish to trade on credit terms are subject to credit verification procedures. In addition, receivable balances are monitored on an ongoing basis, which consequently minimizes UMC’s exposure to bad debts.

With respect to credit risk arising from the other financial assets of UMC, which are comprised of cash and cash equivalents, available-for-sale financial assets and certain derivative instruments, UMC’s exposure to credit risk arising from the default of counter-parties is limited to the carrying amount of these instruments.

Although UMC trades only with established third parties, it will request collateral to be provided by third parties with less favorable financial positions.

Liquidity risk

UMC’s objective is to maintain a balance of funding continuity and flexibility through the use of financial instruments such as cash and cash equivalents, bank loans and bonds.

(3) Information of financial instruments

a. Fair value of financial instruments

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As of June 30, — 2007 2006
Book Value Fair Value Book Value Fair Value
Financial Assets
Non-derivative
Cash and cash equivalents $ 85,608,440 $ 85,608,440 $ 104,638,721 $ 104,638,721
Financial assets at fair value through profit or loss, current 7,802,258 7,802,258 1,506,063 1,506,063
Held-to-maturity financial assets, current 200,000 200,000 779,456 779,456
Notes and accounts receivable 16,428,075 16,428,075 16,149,226 16,149,226
Financial assets at fair value through profit or loss, noncurrent — — 460,663 460,663
Available-for-sale financial assets, noncurrent 60,571,122 60,571,122 42,265,703 42,265,703
Held-to-maturity financial assets, noncurrent — — 340,200 340,200
Financial assets measured at cost, noncurrent 7,882,650 — 5,820,121 —
Long-term investments accounted for under the equity method 11,782,254 15,528,300 12,746,745 18,553,433
Prepayment for long-term investment 247,712 — — —
Deposits-out 752,062 752,062 636,630 636,630
Financial Liabilities
Non-derivative
Short-term loans 364,329 364,329 340,518 340,518
Payables 32,201,264 32,201,264 25,755,247 25,755,247
Capacity deposits (current portion) 174,020 174,020 892,482 892,482
Bonds payable (current portion included) 31,921,673 31,974,788 46,121,403 46,669,976
Derivative
Interest rate swaps $ 423,226 $ 423,226 $ 633,039 $ 633,039
Derivatives embedded in exchangeable bonds — — 555,251 555,521
Forward contracts — — 640 640

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b. The methods and assumptions used to measure the fair value of financial instruments are as follows:

i. The book value of short-term financial instruments approximates to fair value due to their short maturities. Short-term financial instruments include cash and cash equivalents, notes receivable, accounts receivable, current portion of capacity deposits, and payables.

ii. The fair value of financial assets at fair value through profit or loss and available-for-sale financial assets are based on the quoted market price.

iii. The fair value of held-to-maturity financial assets and long-term investments accounted for under equity method are based on the quoted market prices. If market prices are unavailable, UMC estimates the fair value based on the book values.

iv. The fair value of financial assets measured at cost and prepayment for long-term investment are unable to estimate since there is no active market in trading those unlisted investments.

v. The fair value of deposits-out is based on their book value since the deposit periods are principally within one year and renewed upon maturity.

vi. The fair value of bonds payable is determined by the market values.

vii. The fair value of derivative financial instruments is based on the amount UMC expects to receive (positive) or to pay (negative) assuming that the contracts are settled in advance at the balance sheet date.

c. The fair value of UMC’s financial instruments is determined by the quoted prices in active markets, or if the market for a financial instrument is not active, UMC establishes fair value by using a valuation technique:

Active Market Quotation Valuation Technique
Non-derivative
Financial Instruments 2007.06.30 2006.06.30 2007.06.30 2006.06.30
Financial assets
Financial assets at fair value through profit or loss, current $ 7,802,258 $ 1,506,063 $ — $ —
Financial assets at fair value through profit or loss, noncurrent — 460,663 — —

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Active Market Quotation Valuation Technique
Non-derivative
Financial Instruments 2007.06.30 2006.06.30 2007.06.30 2006.06.30
Available-for-sale financial assets, noncurrent $ 60,571,122 $ 42,265,703 $ — $ —
Long-term investments accounted for under the equity method 15,528,300 18,553,433 — —
Financial liabilities
Bonds payable (current portion included) 31,974,788 46,669,976 — —
Derivative Financial Instruments
Financial liabilities
Interest rate swaps — — 423,226 633,039
Derivatives embedded in exchangeable bonds — — — 555,251

d. UMC recognized gains in NT$341 million and NT$99 million arising from the changes in fair value of financial liabilities at fair value through profit or loss for the six-month periods ended June 30, 2007 and 2006, respectively.

e. UMC’s financial liabilities with cash flow interest rate risk exposure as of June 30, 2007 and 2006 amounted to NT$423 million and NT$633 million, respectively.

f. During the six-month period ended June 30, 2007 and 2006, total interest revenue for financial assets or liabilities that are not at fair value through profit or loss were NT$767 million and NT$755 million, respectively. While interest expense for the six-month period ended June 30, 2007 and 2006 each amounted to NT$153 million and NT$401 million, respectively.

(4) UMC and its subsidiary, UMC Japan, held credit-linked deposits and repackage bonds recognized as held-to-maturity financial assets for the earning of interest income. The details are disclosed as follows:

a. Principal amount in original currency

As of June 30, 2007

The Company

Credit-linked deposits and repackage bonds referenced to Amount Due Date
ADVANCED SEMICONDUCTOR ENGINEERING INC. European Convertible Bonds and Loans NTD 200 million 2007.09.25

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As of June 30, 2006 The Company — Credit-linked deposits and repackage bonds referenced to Amount Due Date
SILICONWARE PRECISION INDUSTRIES CO., LTD. European Convertible Bonds and Loans NTD 400 million 2007.02.05
SILICONWARE PRECISION INDUSTRIES CO., LTD. European Convertible Bonds and Loans NTD 200 million 2007.02.05
UMC JAPAN European Convertible Bonds JPY 640 million 2007.03.28
ADVANCED SEMICONDUCTOR ENGINEERING INC. European Convertible Bonds and Loans NTD 200 million 2007.09.25
UMC JAPAN
Credit-linked deposits and repackage bonds referenced to Amount Due Date
UMC JAPAN European Convertible Bonds JPY 500 million 2007.03.29

b. Credit risk

The counterparties of the above investments are major international financial institutions. The repayment in full of these investments is subject to the non-occurrence of one or more credit events, which are referenced to the entities’ fulfillment of their own obligations as well as repayment of their corporate bonds. Upon the occurrence of one or more of such credit events, UMC and its subsidiary, UMC JAPAN, may receive less than the full amount of these investments or nothing. UMC and its subsidiary, UMC JAPAN, have selected reference entities with high credit ratings to minimize the credit risk.

c. Liquidity risk

Early withdrawal is not allowed for the above investments unless called by the issuer. However, the anticipated liquidity risk is low since most of the investments will either have matured within one year, or are relatively liquid in the secondary market.

d. Market risk

There is no market risk for the above investments except for the fluctuations in the exchange rates of US Dollars and Japanese Yen to NT Dollars at the balance sheet date and the settlement date.

(5) UMC and its subsidiary, UMC JAPAN, entered into interest rate swap and forward contracts for hedging the interest rate risk arising from the counter-floating rate of domestic bonds and for hedging the exchange rate risk arising from the net assets or liabilities denominated in foreign currency. The hedging strategy was developed with the objective to reduce the market risk for non-trading purpose. The relevant information on the derivative financial instruments entered into by UMC is as follows:

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a. UMC utilized interest rate swap agreements to hedge its interest rate risk on its counter-floating rate of unsecured domestic bonds issued during the period from May 21 to June 24, 2003. The periods of the interest rate swap agreements are the same as those of the domestic bonds, which are five and seven years. The floating rate is reset annually. The details of interest rate swap agreements are summarized as follows:

As of June 30, 2007 and 2006, UMC had the following interest rate swap agreements in effect:

Notional Amount Contract Period Interest Rate Received Interest Rate Paid
NT$7,500 million May 21, 2003 to June 24, 2008 4.0% minus USD 12-month LIBOR 1.52 %
NT$7,500 million May 21, 2003 to June 24, 2010 4.3% minus USD 12-month LIBOR 1.48 %

b. The details of forward contracts entered into by the Company and its subsidiary, UMC JAPAN, are summarized as follows:

The Company and its subsidiary, UMC JAPAN, did not hold any forward contracts as of June 30, 2007.

The Company did not hold any forward contracts as of June 30, 2006.

UMC JAPAN

Type Notional Amount Contract Period
Forward contracts Sell US$ 3 million June 14, 2006 to July 31, 2006

c. Transaction risk

(a) Credit risk

There is no significant credit risk exposure with respect to the above transactions as the counter-parties are reputable financial institutions with good global standing.

(b) Liquidity and cash flow risk

The cash flow requirements on the interest rate swap agreements are limited to the net interest payables or receivables arising from the differences in the swap rates.

The cash flow requirements on forward contracts are limited to the net difference between the forward and spot rates at the settlement date. Therefore, no significant cash flow risk is anticipated since the working capital is sufficient to meet the cash flow requirements.

53

(c) Market risk

Interest rate swap agreements and forward contracts are intended for hedging purposes. Gains or losses arising from the fluctuations in interest rates and exchange rates are likely to be offset against the gains or losses from the hedged items. As a result, no significant exposure to market risk is anticipated.

d. The presentation of derivative financial instruments on financial statements

UMC

As of June 30, 2007 and 2006, the interest rate swap agreements were classified as current liabilities amounting to NT$423 million and NT$633 million, respectively.

UMC JAPAN

As of June 30, 2006, the balance of current liabilities arising from forward contracts was JPY2 million and related exchange loss of JPY7 million and exchange gain of JPY24 million were recorded under non-operating revenue for the six-month periods ended June 30, 2007 and 2006, respectively.

(6) Significant intercompany transactions among consolidated entities for the six-month periods ended June 30, 2007 and 2006 are disclosed in Attachment 1.

(7) Details of subsidiaries that hold UMC’s stock are as follows:

As of June 30, 2007

Subsidiary No. of Shares (in thousands) Amount Purpose
FORTUNE VENTURE CAPITAL CORP. 22,070 $ 438,090 Long-term investment

As of June 30, 2006

Subsidiary No. of Shares (in thousands) Amount Purpose
FORTUNE VENTURE CAPITAL CORP. 21,846 $ 423,820 Long-term investment
  1. ADDITIONAL DISCLOSURES

(1) The following are additional disclosures for UMC and its affiliates as required by the ROC Securities and Futures Bureau:

a. Financing provided to others for the six-month period ended June 30, 2007: please refer to Attachment 2.

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b. Endorsement/Guarantee provided to others for the six-month period ended June 30, 2007: please refer to Attachment 3.

c. Securities held as of June 30, 2007: please refer to Attachment 4.

d. Individual securities acquired or disposed of with accumulated amount exceeding the lower of NT$100 million or 20 percent of capital stock for the six-month period ended June 30, 2007: please refer to Attachment 5.

e. Acquisition of individual real estate with amount exceeding the lower of NT$100 million or 20 percent of capital stock for the six-month period ended June 30, 2007: please refer to Attachment 6.

f. Disposal of individual real estate with amount exceeding the lower of NT$100 million or 20 percent of capital stock for the six-month period ended June 30, 2007: please refer to Attachment 7.

g. Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the six-month period ended June 30, 2007: please refer to Attachment 8.

h. Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of June 30, 2007: please refer to Attachment 9.

i. Names, locations and related information of investees as of June 30, 2007: please refer to Attachment 10.

j. Financial instruments and derivative transactions: please refer to Note 10.

(2) Investment in Mainland China

None.

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ATTACHMENT 1 (Significant intercompany transactions between consolidated entities)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

For the year ended June 30, 2007

No. (Note1) Related Party Counterparty Relationship with the Company (Note 2) Transactions
Account Amount Terms (Note 3) Percentage of consolidated operating revenues or consolidated total assets (Note 4)
0 UNITED MICROELECTRONICS CORPORATION UMC GROUP (USA) 1 Sales $ 22,337,422 Net 60 days 43.50 %
0 UNITED MICROELECTRONICS CORPORATION UMC GROUP (USA) 1 Accounts receivable 5,113,267 — 1.40 %
0 UNITED MICROELECTRONICS CORPORATION UNITED MICROELECTRONICS (EUROPE) B.V. 1 Sales 3,561,729 Net 60 days 6.94 %
0 UNITED MICROELECTRONICS CORPORATION UNITED MICROELECTRONICS (EUROPE) B.V. 1 Accounts receivable 1,401,612 — 0.38 %
0 UNITED MICROELECTRONICS CORPORATION UMC JAPAN 1 Sales 1,302,912 Net 60 days 2.54 %
0 UNITED MICROELECTRONICS CORPORATION UMC JAPAN 1 Accounts receivable 379,108 — 0.10 %
0 UNITED MICROELECTRONICS CORPORATION UNITED MICRODISPLAY OPTRONICS CORP. 1 Long -term investments accounted for under the equity method 197,798 — 0.05 %

For the year ended June 30, 2006

No. (Note1) Related Party Counterparty Relationship with the Company (Note 2) Transactions
Account Amount Terms (Note 3) Percentage of consolidated operating revenues or consolidated total assets (Note 4)
0 UNITED MICROELECTRONICS CORPORATION UMC GROUP (USA) 1 Sales $ 24,239,799 Net 60 days 44.89 %
0 UNITED MICROELECTRONICS CORPORATION UMC GROUP (USA) 1 Accounts receivable 5,493,509 — 1.54 %
0 UNITED MICROELECTRONICS CORPORATION UMC GROUP (USA) 1 Other current liabilities 648,200 — 0.18 %
0 UNITED MICROELECTRONICS CORPORATION UNITED MICROELECTRONICS (EUROPE) B.V. 1 Sales 4,349,907 Net 60 days 8.06 %
0 UNITED MICROELECTRONICS CORPORATION UNITED MICROELECTRONICS (EUROPE) B.V. 1 Accounts receivable 1,366,652 — 0.38 %
0 UNITED MICROELECTRONICS CORPORATION UMC JAPAN 1 Sales 1,268,821 Net 60 days 2.35 %
0 UNITED MICROELECTRONICS CORPORATION UMC JAPAN 1 Accounts receivable 480,630 — 0.13 %
0 UNITED MICROELECTRONICS CORPORATION TLC CAPITAL CO., LTD. 1 Long-term investments accounted for under the equity method 3,000,000 — 0.84 %

56

ATTACHMENT 1 (Significant intercompany transactions between consolidated entities)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

No. (Note1) — Account Amount Terms (Note 3) Percentage of consolidated operating revenues or consolidated total assets (Note 4)

Note 1: UMC and its subsidiaries are coded as follows:

  1. UMC is coded “0”.

  2. The subsidiaries are coded consecutively beginning from “1” in the order presented in the table above.

Note 2: Transactions are categorized as follows:

  1. The holding company to subsidiary.

  2. Subsidiary to holding company.

  3. Subsidiary to subsidiary.

Note 3: The sales price to the above related parties was determined through mutual agreement based on the market conditions.

Note 4: The percentage with respect to the consolidated asset/liability for transactions of balance sheet items are based on each item’s balance at period-end.

For profit or loss items, cumulative balances are used as basis.

57

ATTACHMENT 2 (Financing provided to others for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

No.
None

58

ATTACHMENT 3 (Endorsement/Guarantee provided to others for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

No.
None

59

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Convertible bonds TATUNG CORP. — Financial assets at fair value through profit or loss, current 402 $ 52,260 — $ 52,260 None
Convertible bonds CHANG WAH ELECTRONMATERIALS INC. — Financial assets at fair value through profit or loss, current 500 58,750 — 58,750 None
Stock PROMOS TECHNOLOGIES INC. — Financial assets at fair value through profit or loss, current 471,400 6,505,320 7.67 6,505,320 None
Stock L&K ENGINEERING CO., LTD. — Financial assets at fair value through profit or loss, current 1,683 101,664 0.99 101,664 None
Stock MICRONAS SEMICONDUCTOR HOLDING AG — Financial assets at fair value through profit or loss, current 280 182,711 0.94 182,711 None
Stock ACTION ELECTRONICS CO., LTD. — Financial assets at fair value through profit or loss, current 16,270 335,972 0.44 335,972 None
Stock FIRICH ENTERPRISES CO., LTD. — Financial assets at fair value through profit or loss, current 122 92,893 0.22 92,893 None
Stock CHINA DEVELOPMENT FINANCIAL HOLDING CORP. — Financial assets at fair value through profit or loss, current 23,538 335,419 0.21 335,419 None
Stock YANG MING MARINE TRANSPORT CORP. — Financial assets at fair value through profit or loss, current 3,254 82,980 0.14 82,980 None
Stock SILICONWARE PRECISION INDUSTRIES CO., LTD. — Financial assets at fair value through profit or loss, current 708 49,389 0.03 49,389 None
Stock UMC GROUP (USA) Investee company Long-term investments accounted for
under the equity method 16,438 982,297 100.00 982,297 None
Stock UNITED MICROELECTRONICS (EUROPE) B.V. Investee company Long-term investments accounted for under the equity method 9 295,851 100.00 288,237 None
Stock UMC CAPITAL CORP. Investee company Long-term investments accounted for under the equity method 124,000 3,969,316 100.00 3,969,316 None
Stock UNITED MICROELECTRONICS CORP. (SAMOA) Investee company Long-term investments accounted for under the equity method 280 5,246 100.00 5,246 None
Stock UMCI LTD. Investee company Long-term investments accounted for under the equity method 880,006 98 100.00 98 None
Stock TLC CAPITAL CO., LTD. Investee company Long-term investments accounted for under the equity method 600,000 8,328,633 100.00 8,328,633 None
Stock FORTUNE VENTURE CAPITAL CORP. Investee company Long-term investments accounted for under the equity method 499,994 11,417,688 99.99 12,003,717 None
Stock UNITED MICRODISPLAY OPTRONICS CORP. Investee company Long-term investments accounted for under the equity method 84,093 257,487 85.24 257,487 None

60

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock UMC JAPAN Investee company Long-term investments accounted for under the equity method 496 $ 5,578,444 50.09 $ 2,634,102 None
Stock PACIFIC VENTURE CAPITAL CO., LTD. Investee company Long-term investments accounted for under the equity method 30,000 127,379 49.99 142,144 None
Stock MTIC HOLDINGS PTE LTD. Investee company Long-term investments accounted for under the equity method 4,000 78,805 49.94 78,805 None
Fund MEGA MISSION LIMITED PARTNERSHIP Investee company Long-term investments accounted for under the equity method — 2,551,817 45.00 2,551,817 None
Stock UNITECH CAPITAL INC. Investee company Long-term investments accounted for under the equity method 21,000 1,122,669 42.00 1,122,669 None
Stock NEXPOWER TECHNOLOGY CORP. Investee company Long-term investments accounted for under the equity method 29,330 295,176 36.66 299,098 None
Stock HSUN CHIEH INVESTMENT CO., LTD. Investee company Long-term investments accounted for under the equity method 33,624 4,943,314 36.49 4,813,451 None
Stock HOLTEK SEMICONDUCTOR INC. Investee company Long-term investments accounted for under the equity method 49,439 903,961 23.12 3,287,719 None
Stock ITE TECH. INC. Investee company Long-term investments accounted for under the equity method 24,229 380,738 21.62 2,059,496 None
Stock XGI TECHNOLOGY INC. Investee company Long-term investments accounted for under the equity method 5,868 40,619 16.44 40,619 None
Stock AMIC TECHNOLOGY CORP. Investee company Long-term investments accounted for under the equity method 16,200 49,654 11.82 75,341 None
Stock UNIMICRON TECHNOLOGY CORP. — Available-for-sale financial assets, noncurrent 202,367 10,199,274 19.89 10,199,274 None
Stock FARADAY TECHNOLOGY CORP. — Available-for-sale financial assets, noncurrent 55,611 7,312,904 17.00 7,312,904 None
Stock UNITED FU SHEN CHEN TECHNOLOGY CORP. — Available-for-sale financial assets, noncurrent 18,460 134,390 16.60 134,390 None
Stock SILICON INTEGRATED SYSTEMS CORP. The Company’s director Available-for-sale financial assets, noncurrent 228,956 4,212,788 16.26 4,212,788 None
Stock NOVATEK MICROELECTRONICS CORP. — Available-for-sale financial assets, noncurrent 60,073 10,332,490 11.53 10,332,490 None
Stock C-COM CORP. — Available-for-sale financial assets, noncurrent 3,083 27,715 4.40 27,715 None
Stock SPRINGSOFT, INC. — Available-for-sale financial assets, noncurrent 8,323 536,802 4.20 536,802 None

61

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock CHIPBOND TECHNOLOGY CORP. — Available-for-sale financial assets, noncurrent 12,330 $ 580,114 4.15 $ 580,114 None
Stock EPISTAR CORP. — Available-for-sale financial assets, noncurrent 18,969 2,551,289 3.61 2,551,289 None
Stock KING YUAN ELECTRONICS CO., LTD. — Available-for-sale financial assets, noncurrent 35,008 983,723 3.21 983,723 None
Stock BILLIONTON SYSTEMS INC. — Available-for-sale financial assets, noncurrent 2,048 29,079 2.63 29,079 None
Stock MEDIATEK INC. — Available-for-sale financial assets, noncurrent 13,910 7,122,175 1.44 7,122,175 None
Stock TOPOINT TECHNOLOGY CO., LTD. — Available-for-sale financial assets, noncurrent 841 73,142 1.07 73,142 None
Stock MEGA FINANCIAL HOLDING COMPANY — Available-for-sale financial assets, noncurrent 95,577 2,126,584 0.86 2,126,584 None
Stock AU OPTRONICS CORP. — Available-for-sale financial assets, noncurrent 3,650 204,406 0.05 204,406 None
Stock HON HAI PRECISION INDUSTRY CO., LTD. — Available-for-sale financial assets, noncurrent 1,057 300,130 0.02 300,130 None
Stock PIXTECH, INC. — Financial assets measured at cost, noncurrent 9,883 — 17.63 note None
Stock UNITED INDUSTRIAL GASES CO., LTD. — Financial assets measured at cost, noncurrent 13,185 146,250 7.80 note None
Stock INDUSTRIAL BANK OF TAIWAN CORP. — Financial assets measured at cost, noncurrent 118,303 1,139,196 4.95 note None
Stock SUBTRON TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 13,593 210,110 4.68 note None
Stock TECO NANOTECH CO. LTD. — Financial assets measured at cost, noncurrent 9,001 — 3.73 note None
Stock SINO SWEARINGEN AIRCRAFT CORPORATION — Financial assets measured at cost, noncurrent 1,124 — 1.50 note None
Stock TAIWAN AEROSPACE CORP. — Financial assets measured at cost, noncurrent 903 — 0.17 note None
Fund PACIFIC TECHNOLOGY PARTNERS, L.P. — Financial assets measured at cost, noncurrent — 197,183 — N/A None
Fund PACIFIC UNITED TECHNOLOGY, L.P. — Financial assets measured at cost, noncurrent — 161,154 — N/A None

62

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock-Preferred stock TAIWAN HIGH SPEED RAIL CORP. — Financial assets measured at cost, noncurrent 30,000 $ 300,000 — N/A None
Stock-Preferred stock MTIC HOLDINGS PTE LTD. — Financial assets measured at cost, noncurrent 4,000 85,080 — N/A None
Stock-Preferred stock TONBU, INC. — Financial assets measured at cost, noncurrent 938 — — N/A None
Stock-Preferred stock AETAS TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 781 82,565 — N/A None
Fund VIETNAM INFRASTRUCTURE LTD. — Prepayment for long-term investments 5,000 166,468 — N/A None
Stock-Preferred stock AETAS TECHNOLOGY INC. — Prepayment for long-term investments 769 81,244 — N/A None
FORTUNE VENTURE CAPITAL CORP.
June 30, 2007
Type of securities Name of securities Relationship Financial statement account Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock UNITRUTH INVESTMENT CORP. Investee company Long-term investments accounted for under the equity method 80,000 $ 822,125 100.00 $ 822,125 None
Stock ANOTO TAIWAN CORP. Investee company Long-term investments accounted for under the equity method 3,920 27,169 49.00 27,169 None
Stock-Preferred stock AEVOE INTERNATIONAL LTD. Investee company Long-term investments accounted for under the equity method 2,500 9,256 44.33 9,256 None
Stock UWAVE TECHNOLOGY CORP. Investee company Long-term investments accounted for under the equity method 10,186 — 44.29 7,185 None
Stock UCA TECHNOLOGY INC. Investee company Long-term investments accounted for under the equity method 11,285 29,180 42.38 19,797 None
Stock WALTOP INTERNATIONAL CORP. Investee company Long-term investments accounted for under the equity method 6,000 88,252 30.00 37,241 None
Stock CRYSTAL MEDIA INC. Investee company Long-term investments accounted for under the equity method 4,493 37,910 25.15 37,910 None
Stock SMEDIA TECHNOLOGY CORP. Investee company Long-term investments accounted for under the equity method 9,045 26,464 23.08 24,899 None
Stock ALLIANCE OPTOTEK CORP. Investee company Long-term investments accounted for under the equity method 3,500 26,734 21.21 19,298 None

63

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

FORTUNE VENTURE CAPITAL CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock AFA TECHNOLOGY, INC. Investee company Long-term investments accounted for under the equity method 6,713 $ 71,699 19.43 $ 59,677 None
Stock HIGH POWER LIGHTING CORP. Investee company Long-term investments accounted for under the equity method 4,525 41,749 18.10 32,517 None
Stock MOBILE DEVICES INC. Investee company Long-term investments accounted for under the equity method 5,713 20,885 17.36 17,851 None
Stock AMIC TECHNOLOGY CORP. Investee of UMC and Fortune Long-term investments accounted for under the equity method 23,405 108,422 17.06 108,422 None
Stock XGI TECHNOLOGY INC. Investee of UMC and Fortune Long-term investments accounted for under the equity method 4,208 23,823 11.81 29,114 None
Stock PIXART IMAGING INC. — Available-for-sale financial assets, noncurrent 13,274 6,517,529 12.70 6,517,529 None
Stock TOPOINT TECHNOLOGY CO., LTD. — Available-for-sale financial assets, noncurrent 1,530 133,106 1.95 133,106 None
Stock AIMTRON TECHNOLOGY, INC. — Available-for-sale financial assets, noncurrent 684 50,067 1.56 50,067 None
Stock EPISTAR CORP. — Available-for-sale financial assets, noncurrent 4,272 574,633 0.82 574,633 None
Stock POWERTECH INDUSTRIAL CO., LTD. — Available-for-sale financial assets, noncurrent 543 48,506 0.59 48,506 None
Stock C SUN MFG LTD. — Available-for-sale financial assets, noncurrent 527 13,305 0.41 13,305 None
Stock CHIPBOND TECHNOLOGY CORP. — Available-for-sale financial assets, noncurrent 790 37,181 0.27 37,181 None
Stock UNITED MICROELECTRONICS CORP. Investor company Available-for-sale financial assets, noncurrent 22,070 438,086 0.12 438,086 None
Stock DAVICOM SEMICONDUCTOR, INC. — Financial assets measured at cost, noncurrent 13,017 132,614 19.83 Note None
Stock CLIENTRON CORP. (formerly BCOM ELECTRONICS INC.) — Financial assets measured at cost, noncurrent 17,675 176,797 19.64 Note None
Stock USBEST TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 3,313 47,897 19.49 Note None
Stock STAR SEMICONDUCTOR CORP. — Financial assets measured at cost, noncurrent 3,838 35,174 18.64 Note None
Stock KUN YUAN TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 7,650 76,500 16.63 Note None

64

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

FORTUNE VENTURE CAPITAL CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock HITOP COMMUNICATIONS CORP. — Financial assets measured at cost, noncurrent 4,340 $ 60,849 16.07 Note None
Stock U-MEDIA COMMUNICATIONS, INC. — Financial assets measured at cost, noncurrent 5,000 15,679 15.60 Note None
Stock LIGHTUNING TECH. INC. — Financial assets measured at cost, noncurrent 2,660 16,663 14.94 Note None
Stock UWIZ TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 4,230 46,953 13.22 Note None
Stock CHIP ADVANCED TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 3,140 22,886 12.99 Note None
Stock VASTVIEW TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 3,360 11,458 11.59 Note None
Stock CION TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 2,268 21,600 11.08 Note None
Stock YAYATECH CO., LTD. — Financial assets measured at cost, noncurrent 1,080 36,180 10.80 Note None
Stock GOLDEN TECHNOLOGY VENTURE CAPITAL INVESTMENT CORP. — Financial assets measured at cost, noncurrent 4,234 41,216 10.67 Note None
Stock AMOD TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 1,060 10,421 10.60 Note None
Stock EXOJET TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 2,300 23,000 10.57 Note None
Stock ADVANCE MATERIALS CORP. — Financial assets measured at cost, noncurrent 11,434 113,017 10.36 Note None
Stock EVERGLORY RESOURCE TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 2,500 21,875 10.23 Note None
Stock NCTU SPRING I TECHNOLOGY VENTURE CAPITAL INVESTMENT CORP. — Financial assets measured at cost, noncurrent 4,284 27,160 10.06 Note None
Stock EXCELLENCE OPTOELECTRONICS INC. — Financial assets measured at cost, noncurrent 8,529 85,291 9.61 Note None
Stock CHANG-YU TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 2,050 55,350 9.49 Note None
Stock ALLEN PRECISION INDUSTRIES CO., LTD. — Financial assets measured at cost, noncurrent 3,000 38,400 9.32 Note None
Stock BCOM ELECTRONICS INC. — Financial assets measured at cost, noncurrent 3,600 43,200 9.00 Note None

65

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

FORTUNE VENTURE CAPITAL CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock ANDES TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 5,000 $ 62,500 7.94 Note None
Stock CHINGIS TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 4,198 37,156 7.83 Note None
Stock JMICRON TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 2,660 47,880 7.71 Note None
Stock SHIN-ETSU HANDOTAI TAIWAN CO., LTD. — Financial assets measured at cost, noncurrent 10,500 105,000 7.00 Note None
Stock ACTI CORP. — Financial assets measured at cost, noncurrent 1,700 17,306 6.85 Note None
Stock RISELINK VENTURE CAPITAL CORP. — Financial assets measured at cost, noncurrent 8,000 76,640 6.67 Note None
Stock NCTU SPRING VENTURE CAPITAL CO., LTD. — Financial assets measured at cost, noncurrent 2,000 7,000 6.28 Note None
Stock SIMPAL ELECTRONICS CO., LTD. — Financial assets measured at cost, noncurrent 6,009 70,179 5.67 Note None
Stock COSMOS TECHNOLOGY VENTURE CAPITAL INVESTMENT CORP. — Financial assets measured at cost, noncurrent 1,742 15,964 5.03 Note None
Stock PARAWIN VENTURE CAPITAL CORP. — Financial assets measured at cost, noncurrent 5,000 41,900 5.00 Note None
Stock MEMOCOM CORP. — Financial assets measured at cost, noncurrent 2,450 16,391 4.90 Note None
Stock LUMITEK CORP. — Financial assets measured at cost, noncurrent 1,750 32,000 4.86 Note None
Stock EE SOLUTIONS, INC. — Financial assets measured at cost, noncurrent 1,300 22,178 4.85 Note None
Stock TRENDCHIP TECHNOLOGIES CORP. — Financial assets measured at cost, noncurrent 1,249 15,086 4.72 Note None
Stock GIGA SOLUTION TECH. CO., LTD. — Financial assets measured at cost, noncurrent 3,930 26,742 4.65 Note None
Stock BEYOND INNOVATION TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 1,183 14,165 4.11 Note None
Stock WAVEPLUS TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 4 — 4.00 Note None
Stock IBT VENTURE CORP. — Financial assets measured at cost, noncurrent 4,569 45,685 3.81 Note None

66

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

FORTUNE VENTURE CAPITAL CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock SUBTRON TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 10,993 $ 132,634 3.78 Note None
Stock HIGH POWER OPTOELECTRONICS, INC. — Financial assets measured at cost, noncurrent 1,500 15,000 3.75 Note None
Stock ANIMATION TECHNOLOGIES INC. — Financial assets measured at cost, noncurrent 1,480 22,200 3.16 Note None
Stock SUPERALLOY INDUSTRIAL CO., LTD. — Financial assets measured at cost, noncurrent 5,000 225,000 3.08 Note None
Stock PRINTECH INTERNATIONAL INC. — Financial assets measured at cost, noncurrent 540 2,457 2.69 Note None
Stock SHENG-HUA VENTURE CAPITAL CORP. — Financial assets measured at cost, noncurrent 750 4,950 2.50 Note None
Stock CHIPSENCE CORP. — Financial assets measured at cost, noncurrent 1,313 9,739 2.03 Note None
Stock ADVANCED CHIP ENGINEERING TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 2,290 24,419 1.84 Note None
Stock TAIMIDE TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 1,500 16,095 1.70 Note None
Stock RALINK TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 1,323 14,828 1.59 Note None
Stock FORTUNE SEMICONDUCTOR CORP. — Financial assets measured at cost, noncurrent 500 8,288 1.32 Note None
Fund CRYSTAL INTERNET VENTURE FUND II(BVI), L.P. — Financial assets measured at cost, noncurrent — 9,342 1.09 N/A None
Stock ARCADIA DESIGN SYSTEMS (TAIWAN), INC. — Financial assets measured at cost, noncurrent 162 — 0.83 Note None
Fund IGLOBE PARTNERS FUND, L.P. — Financial assets measured at cost, noncurrent — 39,051 — N/A None
Stock-Preferred stock AURORA SYSTEMS, INC. — Financial assets measured at cost, noncurrent 5,133 59,317 — N/A None
Stock-Preferred stock ALPHA & OMEGA SEMICONDUCTOR LTD. — Financial assets measured at cost, noncurrent 1,500 46,313 — N/A None

67

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

TLC CAPITAL CO., LTD.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Fund FGIT GLOBAL REALTY & INFRASTRUCTURE FUND — Financial assets at fair value through profit or loss, current 500 $ 4,900 — $ 4,900 None
Stock Y.S. FINANCIAL ADVISORY CO., LTD. Investee company Long-term investments accounted for under the equity method 7,000 70,000 48.95 70,063 None
Stock YUNG LI INVESTMENTS, INC. Investee company Long-term investments accounted for under the equity method 0.20 202,724 37.04 202,724 None
Stock SMEDIA TECHNOLOGY CORP. Investee company Long-term investments accounted for under the equity method 7,084 90,556 18.08 19,502 None
Stock RECHI PRECISION CO., LTD. — Available-for-sale financial assets, noncurrent 20,163 332,697 5.82 332,697 None
Stock TOPOINT TECHNOLOGY CO., LTD. — Available-for-sale financial assets, noncurrent 4,191 364,607 5.33 364,607 None
Stock SERCOMM CORP. — Available-for-sale financial assets, noncurrent 5,841 258,777 4.22 258,777 None
Stock HORIZON SECURITIES CO., LTD. — Available-for-sale financial assets, noncurrent 16,858 158,297 3.92 158,297 None
Stock SIMPLO TECHNOLOGY CO., LTD. — Available-for-sale financial assets, noncurrent 5,000 940,000 3.33 940,000 None
Stock MITAC TECHNOLOGY CORP. — Available-for-sale financial assets, noncurrent 6,000 234,000 1.85 234,000 None
Stock POWERTECH INDUSTRIAL CO., LTD. — Available-for-sale financial assets, noncurrent 1,682 150,177 1.84 150,177 None
Stock EPISTAR CORP. — Available-for-sale financial assets, noncurrent 9,261 1,245,596 1.77 1,245,596 None
Stock FORMOSA EPITAXY INC. — Available-for-sale financial assets, noncurrent 2,509 80,790 1.34 80,790 None
Stock CORETRONIC CORP. — Available-for-sale financial assets, noncurrent 6,007 342,407 0.90 342,407 None
Stock ORIENT SEMICONDUCTOR ELECTRONICS, LTD. — Available-for-sale financial assets, noncurrent 9,264 120,432 0.88 120,432 None

68

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

TLC CAPITAL CO., LTD.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock CYNTEC CO., LTD. — Available-for-sale financial assets, noncurrent 1,217 $ 82,999 0.75 $ 82,999 None
Stock INPAQ TECHNOLOGY CO., LTD. — Available-for-sale financial assets, noncurrent 500 32,000 0.74 32,000 None
Stock GIANT MANUFACTURING CO., LTD. — Available-for-sale financial assets, noncurrent 1,770 106,731 0.63 106,731 None
Stock TATUNG CORP. — Available-for-sale financial assets, noncurrent 26,152 384,434 0.59 384,434 None
Stock HUNG SHENG CONSTRUCTION LTD. — Available-for-sale financial assets, noncurrent 3,300 86,295 0.59 86,295 None
Stock K.S. TERMINALS INC. — Available-for-sale financial assets, noncurrent 501 19,289 0.47 19,289 None
Stock TRIDENT MICROSYSTEMS, INC. — Available-for-sale financial assets, noncurrent 250 150,516 0.44 150,516 None
Stock OPTO TECH CORP. — Available-for-sale financial assets, noncurrent 3,000 83,700 0.38 83,700 None
Stock WINTEK CORP. — Available-for-sale financial assets, noncurrent 2,957 104,973 0.28 104,973 None
Stock SYSTEX CORP. — Available-for-sale financial assets, noncurrent 800 32,960 0.25 32,960 None
Stock YEH-CHIANG TECHNOLOGY CORP. — Available-for-sale financial assets, noncurrent 300 13,500 0.21 13,500 None
Stock SHIHLIN ELECTRIC & ENGINEERING CORP. — Available-for-sale financial assets, noncurrent 950 32,300 0.18 32,300 None
Stock ELAN MICROELECTRONICS CORP. — Available-for-sale financial assets, noncurrent 650 42,120 0.18 42,120 None
Stock TAIWAN FERTILIZER CO., LTD. — Available-for-sale financial assets, noncurrent 1,600 110,400 0.16 110,400 None
Stock PHISON ELECTRONICS CORP. — Available-for-sale financial assets, noncurrent 100 43,300 0.14 43,300 None
Stock MITAC INTERNATIONAL CORP. — Available-for-sale financial assets, noncurrent 1,500 62,550 0.12 62,550 None

69

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

TLC CAPITAL CO., LTD.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock CHINA EVERBRIGHT INTERNATIONAL LTD. — Available-for-sale financial assets, noncurrent 3,091 $ 40,392 0.10 $ 40,392 None
Stock TUNG HO STEEL ENTERPRISE CORP. — Available-for-sale financial assets, noncurrent 900 34,650 0.10 34,650 None
Stock ADVANCED SEMICONDUCTOR ENGINEERING, INC. — Available-for-sale financial assets, noncurrent 3,700 165,575 0.08 165,575 None
Stock YULON MOTOR CO., LTD. — Available-for-sale financial assets, noncurrent 1,000 40,500 0.07 40,500 None
Stock CHINA METAL PRODUCTS CO., LTD. — Available-for-sale financial assets, noncurrent 150 8,295 0.07 8,295 None
Stock NANTEX INDUSTRY. CO., LTD. — Available-for-sale financial assets, noncurrent 150 4,425 0.06 4,425 None
Stock CHINA DEVELOPMENT FINANCIAL HOLDING CORP. — Available-for-sale financial assets, noncurrent 3,741 53,306 0.03 53,306 None
Stock HANNSTAR DISPLAY CORP. — Available-for-sale financial assets, noncurrent 2,100 17,073 0.03 17,073 None
Stock FAR EASTERN INTERNATIONAL BANK — Available-for-sale financial assets, noncurrent 500 7,500 0.03 7,500 None
Stock SHIN KONG FINANCIAL HOLDING CO., LTD. — Available-for-sale financial assets, noncurrent 1,250 47,812 0.03 47,812 None
Stock CHINATRUST FINANCIAL HOLDING CO., LTD. — Available-for-sale financial assets, noncurrent 1,600 40,960 0.02 40,960 None
Stock INFINEON TECHNOLOGIES AG MUEN ADR — Available-for-sale financial assets, noncurrent 120 65,082 0.02 65,082 None
Stock TA CHONG BANK LTD. — Available-for-sale financial assets, noncurrent 100 1,095 0.01 1,095 None
Stock CATHAY FINANCIAL HOLDING CO., LTD. — Available-for-sale financial assets, noncurrent 750 58,875 0.01 58,875 None
Stock ASIA PACIFIC MICROSYSTEMS, INC. — Financial assets measured at cost, noncurrent 10,000 100,000 8.40 Note None
Stock SUPERALLOY INDUSTRIAL CO., LTD. — Financial assets measured at cost, noncurrent 10,650 479,250 6.55 Note None

70

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITRUTH INVESTMENT CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock WALTOP INTERNATIONAL CORP. Investee company Long-term investments accounted for under the equity method 2,000 $ 29,417 10.00 $ 12,414 None
Stock CRYSTAL MEDIA INC. Investee company Long-term investments accounted for under the equity method 1,587 13,390 8.88 13,390 None
Stock ALLIANCE OPTOTEK CORP. Investee company Long-term investments accounted for under the equity method 1,300 9,930 7.88 7,168 None
Stock SMEDIA TECHNOLOGY CORP. Investee company Long-term investments accounted for under the equity method 2,570 13,943 6.56 7,074 None
Stock UCA TECHNOLOGY INC. Investee company Long-term investments accounted for under the equity method 1,585 5,999 5.95 2,781 None
Stock HIGH POWER LIGHTING CORP. Investee company Long-term investments accounted for under the equity method 1,225 11,302 4.90 8,803 None
Stock UWAVE TECHNOLOGY CORP. Investee company Long-term investments accounted for under the equity method 1,000 — 4.35 705 None
Stock MOBILE DEVICES INC. Investee company Long-term investments accounted for under the equity method 1,250 3,906 3.80 3,906 None
Stock XGI TECHNOLOGY INC. Investee of UMC and Fortune Long-term investments accounted for under the equity method 1,179 8,158 3.31 8,158 None
Stock AFA TECHNOLOGY, INC. Investee company Long-term investments accounted for under the equity method 1,000 8,890 2.89 8,890 None
Stock TOPOINT TECHNOLOGY CO., LTD. — Available-for-sale financial assets, noncurrent 840 73,141 1.07 73,141 None
Stock POWERTECH INDUSTRIAL CO., LTD. — Available-for-sale financial assets, noncurrent 634 56,591 0.69 56,591 None
Stock AMOD TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 930 7,920 9.30 Note None
Stock EXCELLENCE OPTOELECTRONICS INC. — Financial assets measured at cost, noncurrent 6,374 63,739 7.18 Note None
Stock-Preferred stock ALLEN PRECISION INDUSTRIES CO., LTD. — Financial assets measured at cost, noncurrent 2,000 20,000 6.21 N/A None
Stock VASTVIEW TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 1,748 25,850 6.03 Note None
Stock CHIP ADVANCED TECHNOLOGY INC. — Financial assets measured at cost, noncurrent 1,386 3,059 5.73 Note None
Stock ADVANCE MATERIALS CORP. — Financial assets measured at cost, noncurrent 5,637 62,427 5.11 Note None

71

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITRUTH INVESTMENT CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock EVERGLORY RESOURCE TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 1,200 $ 10,500 4.91 Note None
Stock YAYATECH CO., LTD. — Financial assets measured at cost, noncurrent 490 16,415 4.90 Note None
Stock EE SOLUTIONS, INC. — Financial assets measured at cost, noncurrent 1,300 14,755 4.85 Note None
Stock LIGHTUNING TECH. INC. — Financial assets measured at cost, noncurrent 840 5,262 4.72 Note None
Stock CHINGIS TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 2,518 31,218 4.70 Note None
Stock UWIZ TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 1,470 16,317 4.59 Note None
Stock TRENDCHIP TECHNOLOGIES CORP. — Financial assets measured at cost, noncurrent 1,138 13,747 4.30 Note None
Stock EXOJET TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 850 8,500 3.91 Note None
Stock U-MEDIA COMMUNICATIONS, INC. — Financial assets measured at cost, noncurrent 1,250 3,920 3.90 Note None
Stock JMICRON TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 1,340 8,844 3.88 Note None
Stock BCOM ELECTRONICS INC. — Financial assets measured at cost, noncurrent 1,495 17,941 3.74 Note None
Stock ACTI CORP. — Financial assets measured at cost, noncurrent 740 11,100 2.98 Note None
Stock MEMOCOM CORP. — Financial assets measured at cost, noncurrent 1,390 9,302 2.78 Note None
Stock PRINTECH INTERNATIONAL INC. — Financial assets measured at cost, noncurrent 540 2,457 2.69 Note None
Stock LUMITEK CORP. — Financial assets measured at cost, noncurrent 750 13,714 2.08 Note None
Stock RALINK TECHNOLOGY CORP. — Financial assets measured at cost, noncurrent 1,300 14,570 1.56 Note None
Stock FORTUNE SEMICONDUCTOR CORP. — Financial assets measured at cost, noncurrent 533 6,947 1.41 Note None
Stock CHANG-YU TECHNOLOGY CO., LTD. — Financial assets measured at cost, noncurrent 300 8,100 1.39 Note None

72

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITRUTH INVESTMENT CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock GIGA SOLUTION TECH. CO., LTD. — Financial assets measured at cost, noncurrent 1,131 $ 7,698 1.34 Note None
Stock STAR SEMICONDUCTOR CORP. — Financial assets measured at cost, noncurrent 260 2,193 1.26 Note None
Stock HIGH POWER OPTOELECTRONICS, INC. — Financial assets measured at cost, noncurrent 500 5,000 1.25 Note None
Stock CHIPSENCE CORP. — Financial assets measured at cost, noncurrent 682 5,064 1.05 Note None
Stock SUPERALLOY INDUSTRIAL CO., LTD. — Financial assets measured at cost, noncurrent 1,600 72,000 0.98 Note None
UMC CAPITAL CORP.
June 30, 2007
Type of securities Name of securities Relationship Financial statement account Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock UMC CAPITAL (USA) Investee company Long-term investments accounted for under the
equity method 200 USD 343 100.00 USD 343 None
Stock ECP VITA LTD. Investee company Long-term investments accounted for under the equity method 1,000 USD 1,733 100.00 USD 1,733 None
Stock-Preferred stock ACHIEVE MADE INTERNATIONAL LTD. Investee company Long-term investments accounted for under the equity method 508 USD 781 43.29 USD 247 None
Fund UC FUND II Investee company Long-term investments accounted for under the equity method 5,000 USD 7,684 35.45 USD 7,684 None
Stock-Preferred stock PARADE TECHNOLOGIES, LTD. Investee company Long-term investments accounted for under the equity method 3,125 USD 1,459 23.30 USD 556 None
Stock SPREADTRUM COMMUNICATIONS, INC. — Available-for-sale financial assets, noncurrent 550 USD 7,984 0.44 USD 7,984 None
Stock PATENTOP, LTD. — Financial assets measured at cost, noncurrent 720 — 18.00 Note None
Stock CIPHERMAX, INC. (formerly MAXXAN SYSTEMS, INC.) — Financial assets measured at cost, noncurrent 95 USD 1,281 — Note None
Stock-Preferred stock AICENT, INC. — Financial assets measured at cost, noncurrent 2,000 USD 1,000 — N/A None

73

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UMC CAPITAL CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock SILICON 7, INC. — Financial assets measured at cost, noncurrent 1,866 USD 2,000 — Note None
Stock-Preferred stock GCT SEMICONDUCTOR, INC. — Financial assets measured at cost, noncurrent 1,571 USD 1,000 — N/A None
Stock-Preferred stock INTELLON CORP. — Financial assets measured at cost, noncurrent 5,481 USD 4,653 — N/A None
Stock-Preferred stock FORTEMEDIA, INC. — Financial assets measured at cost, noncurrent 11,233 USD 4,928 — N/A None
Stock MAGNACHIP SEMICONDUCTOR LLC — Financial assets measured at cost, noncurrent 31 USD 1,094 — Note None
Stock-Preferred stock MAXLINEAR, INC. — Financial assets measured at cost, noncurrent 2,070 USD 4,052 — N/A None
Stock-Preferred stock SMART VANGUARD LTD. — Financial assets measured at cost, noncurrent 5,750 USD 6,500 — N/A None
Stock-Preferred stock WISAIR, INC. — Financial assets measured at cost, noncurrent 153 USD 1,596 — N/A None
Stock-Preferred stock AMALFI SEMICONDUCTOR, INC. — Financial assets measured at cost, noncurrent 1,471 USD 1,500 — N/A None
Stock-Preferred stock DIBCOM, INC. — Financial assets measured at cost, noncurrent 10 USD 1,186 — N/A None
Stock-Preferred stock EAST VISION TECHNOLOGY LTD. — Financial assets measured at cost, noncurrent 2,770 USD 4,820 — N/A None
Stock-Preferred stock ALPHA & OMEGA SEMICONDUCTOR LTD. — Financial assets measured at cost, noncurrent 1,500 USD 3,375 — N/A None
Stock-Preferred stock AURORA SYSTEMS, INC. — Financial assets measured at cost, noncurrent 550 USD 242 — N/A None
Stock-Preferred stock VERIPRECISE TECHNOLOGY, INC. — Financial assets measured at cost, noncurrent 4,000 USD 4,000 — N/A None
Stock-Preferred stock PACTRUST COMMUNICATION, INC. — Financial assets measured at cost, noncurrent 4,850 USD 4,850 — N/A None
Stock-Preferred stock LUMINUS DEVICES, INC. — Financial assets measured at cost, noncurrent 477 USD 3,000 — N/A None

74

ATTACHMENT 4 (Securities held as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UMC CAPITAL CORP.

Type of securities Name of securities Relationship Financial statement account June 30, 2007 — Units (thousand)/ bonds/ shares (thousand) Book value Percentage of ownership (%) Market value/ Net assets value Shares as collateral (thousand)
Stock-Preferred stock REALLUSION HOLDING INC. — Financial assets measured at cost, noncurrent 1,800 USD 555 — N/A None
Stock-Preferred stock FORCE10 NETWORKS, INC. — Financial assets measured at cost, noncurrent 4,373 USD 4,500 — N/A None
Stock-Preferred stock QSECURE, INC. — Financial assets measured at cost, noncurrent 12,422 USD 3,000 — N/A None
Stock-Preferred stock VISAGE MOBILE INC. — Financial assets measured at cost, noncurrent 5,099 USD 2,000 — N/A None
Fund VENGLOBAL CAPITAL FUND III, L.P. — Financial assets measured at cost, noncurrent — USD 712 — N/A None
Fund TRANSLINK CAPITAL PARTNERS I L.P. — Financial assets measured at cost, noncurrent — USD 560 — N/A None
Stock KOTURA, INC. — Financial assets measured at cost, noncurrent 0.59 — — Note None
Stock-Preferred stock ZYLOGIC SEMICONDUCTOR CORP. — Financial assets measured at cost, noncurrent 750 — — N/A None

Note: The net assets values for unlisted investees classified as “Financial assets measured at cost, noncurrent” were not available as of June 30, 2007.

75

ATTACHMENT 5 (Individual securities acquired or disposed of with accumulated amount exceeding the lower of NT$100 million or 20 percent of the capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Type of securities Name of the securities Financial statement account Counter-party Relationship Beginning balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1) Addition — Units (thousand)/ bonds/ shares (thousand) Amount Disposal — Units (thousand)/ bonds/ shares (thousand) Amount Cost (Note 2) Gain (Loss) from disposal (Note 3) Ending balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1)
Convertible bonds EDOM TECHNOLOGY CO., LTD. Financial assets at fair value through profit or loss, current EDOM TECHNOLOGY CO., LTD. — 60 $ 193,910 — $ — 60 $ 197,760 $ 201,990 $ (4,230 ) — $ —
Stock SILICONWARE PRECISION INDUSTRIES CO., LTD. Financial assets at fair value through profit or loss, current Open market — 5,395 276,202 — — 4,687 285,236 185,407 99,829 708 49,389
Stock EPITECH TECHNOLOGY CORP. Available-for-sale financial assets,
noncurrent Note 4 — 37,221 1,155,725 — — 37,221 1,313,916 (Note 4 ) 794,117 519,799 — —
Stock EPISTAR CORP. Available-for-sale financial assets,
noncurrent Note 4 — — — 18,969 (Note 5 ) 2,106,684 (Note 5 ) — — — — 18,969 2,551,289
Stock MEDIATEK INC. Available-for-sale financial assets, noncurrent Open market — 14,979 5,048,091 — — 1,069 392,332 11,057 380,561 (Note 6 ) 13,910 7,122,175
Stock AU OPTRONICS CORP. Available-for-sale financial assets, noncurrent Open market — 78,266 3,545,441 — — 74,616 3,671,116 895,055 2,782,317 (Note 7 ) 3,650 204,406
Stock HIGHLINK TECHNOLOGY CORP. Long-term investments accounted for under the equity method Note 4 — 28,500 225,624 — — 28,500 593,318 (Note 4 ) 175,810 417,625 (Note 8 ) — —
Stock HOLTEK SEMICONDUCTOR INC. Long-term investments accounted for under the equity method Open market — 51,939 878,747 — — 2,500 166,226 47,810 118,416 49,439 903,961
Stock NEXPOWER TECHNOLOGY CORP. Long-term investments accounted for under the equity method Proceeds from new issues — — — 29,680 296,800 350 3,675 3,515 160 29,330 295,176
Stock UNITED MICRODISPLAY OPTRONICS CORP. Long-term investments accounted for under the equity method Proceeds from new issues — 64,313 167,217 19,780 197,798 — — — — 84,093 257,487
Stock-Preferred stock AETAS TECHNOLOGY INC. Prepayment for long-term investments AETAS TECHNOLOGY INC. — — — 1,550 163,809 781 (Note 9 ) — 82,565 (Note 9 ) — 769 81,244
Fund VIETNAM INFRASTRUCTURE LTD. Prepayment for long-term investments VIETNAM INFRASTRUCTURE LTD. — — — — 166,468 — — — — — 166,468

76

ATTACHMENT 5 (Individual securities acquired or disposed of with accumulated amount exceeding the lower of NT$100 million or 20 percent of the capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Type of securities Name of the securities Financial statement account Counter-party Relationship Beginning balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1) Addition — Units (thousand)/ bonds/ shares (thousand) Amount Disposal — Units (thousand)/ bonds/ shares (thousand) Amount Cost (Note 2) Gain (Loss) from disposal (Note 3) Ending balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1)

Note 1: The amounts of beginning and ending balances of financial assets at fair value through profit or loss and available for sale are recorded at the prevailing market prices.

Note 2: The disposal cost represents historical cost.

Note 3: Gain/Loss from disposal includes realized exchange gain/loss to which the ROC SFAS No. 34, “Financial Instruments: Recognition and Measurement”, is applied. As for the gain/loss from disposal of financial assets at fair value through profit/loss transfers to gain/loss on the valuation of financial assets.

Note 4: On March 1, 2007, EPITECH TECHNOLOGY CORP. and HIGHLINK TECHNOLOGY CORP. merged into EPISTAR CORP.

Note 5: The addition includes shares exchanged of 12,085 thousand shares of EPITECH TECHNOLOGY CORP. (amounted to NT$1,313,916 thousand), 5,182 thousand shares of HIGHLINK TECHNOLOGY CORP. (NT$593,318 thousand) and 1,702 thousand shares acquired in open market (amounted to NT$199,450 thousand).

Note 6: The gain on disposal includes additional paid-in capital adjustments of NT$(714) thousand.

Note 7: The gain on disposal includes additional paid-in capital adjustments of NT$6,113 thousand and cumulative translation adjustments of NT$143 thousand.

Note 8: The gain on disposal includes additional paid-in capital adjustments of NT$117 thousand.

Note 9: Prepayment for long term investment converted to financial assets measured at cost.

FORTUNE VENTURE CAPITAL CORP.

Type of securities Name of the securities Financial statement account Counter-party Relationship Beginning balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1) Addition — Units (thousand)/ bonds/ shares (thousand) Amount Disposal — Units (thousand)/ bonds/ shares (thousand) Amount Cost Gain (Loss) from disposal Ending balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1)
Stock EPITECH TECHNOLOGY CORP. Available-for-sale financial assets, noncurrent Note 2 — 13,128 $ 407,627 — $ — 13,128 $ 463,421 $ 300,613 $ 162,808 — $ —
Stock EPISTAR CORP. Available-for-sale financial assets, noncurrent Note 2 — — — 4,272 (Note 3 ) 464,566 (Note 3 ) — — — — 4,272 574,633

Note 1: The amounts of beginning and ending balances of available-for-sale financial assets are recorded at the prevailing market prices.

Note 2: On March 1, 2007, EPITECH TECHNOLOGY CORP. and HIGHLINK TECHNOLOGY CORP. merged into EPISTAR CORP.

Note 3: The addition included shares exchanged of 4,262 thousand shares of EPITECH TECHNOLOGY CORP. (amounted to NT$463,421 thousand) and 10 thousand shares of HIGHLINK TECHNOLOGY CORP. (NT$1,145 thousand).

77

ATTACHMENT 5 (Individual securities acquired or disposed of with accumulated amount exceeding the lower of NT$100 million or 20 percent of the capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

TLC CAPITAL CO., LTD.

Type of securities Name of the securities Financial statement account Counter-party Relationship Beginning balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1) Addition — Units (thousand)/ bonds/ shares (thousand) Amount Disposal — Units (thousand)/ bonds/ shares (thousand) Amount Cost Gain (Loss) from disposal Ending balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1)
Convertible bonds EPISTAR CORP. Financial assets at fair value through profit or loss, noncurrent Note 2/ EPISTAR CORP. — — $ — 2,500 $ 317,500 2,500 $ 332,792 (Note 3 ) $ 317,500 $ 15,292 — $ —
Convertible bonds EPITECH TECHNOLOGY CORP. Financial assets at fair value through profit or loss, noncurrent Note 2 — 2,500 293,250 — — 2,500 317,500 250,000 67,500 — —
Stock ADVANCED SEMICONDUCTOR ENGINEERING, INC. Available-for-sale financial assets, noncurrent Open market — — — 3,700 141,090 — — — — 3,700 165,575
Stock AVERMEDIA TECHNOLOGIES, INC. Available-for-sale financial assets, noncurrent Open market — 4,085 163,196 — — 4,085 165,586 146,474 19,112 — —
Stock EPISTAR CORP. Available-for-sale financial assets, noncurrent Note 2/ EPISTAR CORP. — — — 9,261 (Note 4 ) 1,063,847 (Note 4 ) — — — — 9,261 1,245,596
Stock EPITECH TECHNOLOGY CORP. Available-for-sale financial assets, noncurrent Note 2 — 10,413 323,324 — — 10,413 367,579 298,327 69,252 — —
Stock TOPOINT TECHNOLOGY CO., LTD. Available-for-sale financial assets, noncurrent Open market — 5,430 395,317 841 67,929 (Note 5 ) 2,080 154,922 113,063 41,859 4,191 364,607
Stock MITAC TECHNOLOGY CORP. Available-for-sale financial assets, noncurrent Open market — — — 6,000 168,866 — — — — 6,000 234,000
Stock GIANT MANUFACTURING CO., LTD. Available-for-sale financial assets, noncurrent Open market — — — 1,770 105,435 — — — — 1,770 106,731
Stock TATUNG CORP. Available-for-sale financial assets, noncurrent Open market — 38,152 557,019 — — 12,000 175,971 147,694 28,277 26,152 384,434

78

ATTACHMENT 5 (Individual securities acquired or disposed of with accumulated amount exceeding the lower of NT$100 million or 20 percent of the capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

TLC CAPITAL CO., LTD.

Type of securities Name of the securities Financial statement account Counter-party Relationship Beginning balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1) Addition — Units (thousand)/ bonds/ shares (thousand) Amount Disposal — Units (thousand)/ bonds/ shares (thousand) Amount Cost Gain (Loss) from disposal Ending balance — Units (thousand)/ bonds/ shares (thousand) Amount (Note 1)
Stock TRIDENT MICROSYSTEMS, INC. Available-for-sale financial assets, noncurrent Open market — — $ — 250 $ 164,588 — $ — $ — $ — 250 $ 150,516
Stock WINTEK CORP. Available-for-sale financial assets, noncurrent Open market — — — 3,957 122,472 1,000 34,311 30,698 3,613 2,957 104,973
Stock CHINA DEVELOPMENT FINANCIAL HOLDING CORP. Available-for-sale financial assets, noncurrent Open market — 23,596 353,936 — — 19,855 276,938 242,724 34,214 3,741 53,306
Stock HIGHLINK TECHNOLOGY CORP. Long-term investments accounted for under the equity method Note 2 — 17,460 134,999 — — 17,460 363,476 134,999 231,019 (Note 6 ) — —

Note 1: The amounts of beginning and ending balances of financial assets at fair value through profit or loss and available for sale are recorded at the prevailing market prices.

Note 2: On March 1, 2007, EPITECH TECHNOLOGY CORP. and HIGHLINK TECHNOLOGY CORP. merged into EPISTAR CORP.

Note 3: Exercise of conversion rights of EPISTAR CORP’s convertible bonds to obtain 2,706 thousand shares of EPISTAR stock.

Note 4: The addition included shares exchanged of 3,381 thousand shares of EPITECH TECHNOLOGY CORP. (amounted to NT$367,579 thousand), 3,174 thousand shares of HIGHLINK TECHNOLOGY CORP. (NT$363,476 thousand) and conversion of 2,706 thousand shares of EPISTAR CORP. (amounted to NT$ 332,792 thousand)

Note 5: Exercise of conversion rights of the company’s convertible bond classified as “Financial asset at fair value through profit or loss” on the balance sheet.

Note 6: The gain on disposal includes long-term additional paid-in capital adjustments of NT$2,542 thousand due to proportionate changes in shareholding.

79

ATTACHMENT 6 (Acquisition of individual real estate with amount exceeding the lower of NT$100 million or 20 percent of the capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Name of properties Transaction date Transaction amount Payment status Counter-party Relationship Where counter-party is a related party, details of prior transactions — Former holder of property Relationship between former holder and acquirer of property Date of transaction Transaction amount Price reference Date of acquisition and status of utilization
R&D Center in Tainan Science Park 2007.6.22 $ 725,000 90% fullfilled Yih Shin Construction Co, Ltd. Third Party N/A N/A N/A N/A cost 2007.6.22 /In use

80

ATTACHMENT 7 (Disposal of individual real estate with amount exceeding the lower of NT$100 million or 20 percent of the capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION

Names of properties
None

81

ATTACHMENT 8 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION
Transactions Details of non-arm’s length transaction Notes and accounts receivable (payable)
Related party Relationship Purchases (Sales) Amount Percentage of total purchases (sales) (%) Term Unit price Term Balance Percentage of total receivables (%) Note
UMC GROUP (USA) Investee company Sales $ 22,337,422 46 Net 60 Days N/A N/A $ 5,113,267 35
UNITED MICROELECTRONICS (EUROPE) B.V. Investee company Sales 3,561,729 7 Net 60 Days N/A N/A 1,401,612 10
UMC JAPAN Investee company Sales 1,302,912 3 Net 60 Days N/A N/A 379,108 3
SILICON INTEGRATED SYSTEMS CORP. The Company’s director Sales 426,549 1 Month-end 45 Days N/A N/A 69,244 0
HOLTEK SEMICONDUCTOR INC. Investee company Sales 271,438 1 Month-end 60 Days N/A N/A 100,737 1
ITE TECH. INC. Investee company Sales 209,396 0 Month-end 45 Days N/A N/A 103,700 1
UNITED MICROELECTRONICS (EUROPE) B.V.
Transactions Details of non-arm’s length transaction Notes and accounts receivable (payable)
Related party Relationship Purchases (Sales) Amount Percentage of total purchases (sales) (%) Term Unit price Term Balance Percentage of total receivables (%) Note
UNITED MICROELECTRONICS CORPORATION Investor company Purchases USD 108,036 100 Net 60 Days N/A N/A USD 42,719 100

82

ATTACHMENT 8 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the six-month period ended June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UMC GROUP (USA)
Transactions Details of non-arm’s length transaction Notes and accounts receivable (payable)
Related party Relationship Purchases (Sales) Amount Percentage of total purchases (sales) (%) Term Unit price Term Balance Percentage of total receivables (%) Note
UNITED MICROELECTRONICS CORPORATION Investor company Purchases USD 677,842 100 Net 60 Days N/A N/A USD 155,848 100
UMC JAPAN
Transactions Details of
non-arm’s length transaction Notes and accounts receivable (payable)
Related party Relationship Purchases (Sales) Amount Percentage of total purchases (sales) (%) Term Unit price Term Balance Percentage of total receivables (%) Note
UNITED MICROELECTRONICS CORPORATION Investor company Purchases JPY 4,681,539 65 Net 60 Days N/A N/A JPY 1,423,984 31
AMIC TECHNOLOGY CORP. Investee of UMC Sales JPY 751,033 5 Month-end 45 Days N/A N/A JPY 550,771 7

83

ATTACHMENT 9 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION
Ending balance Overdue receivables
Related party Relationship Notes receivable Accounts receivable Other receivables Total Turnover rate (times) Amount Collection status Amount received in subsequent period Allowance for doubtful accounts
UMC GROUP (USA) Investee company $ — $ 5,113,267 $ 105 $ 5,113,372 8.73 $ — — $ 4,418,053 $ —
UNITED MICROELECTRONICS (EUROPE) B.V. Investee company — 1,401,612 8 1,401,620 6.67 122,671 Credit Collecting 741,351 —
UMC JAPAN Investee company — 379,108 207 379,315 6.68 — — 189,372 587
ITE TECH. INC. Investee company — 103,700 171 103,871 5.76 — — 42,289 —
HOLTEK SEMICONDUCTOR INC. Investee company 44,134 56,603 — 100,737 5.02 — — 87,200 —
UMC JAPAN
Ending balance Overdue receivables
Related party Relationship Notes receivable Accounts receivable Other receivables Total Turnover rate (times) Amount Collection status Amount received in subsequent period Allowance for doubtful accounts
AMIC TECHNOLOGY CORP. Investee of UMC $ — JPY 550,771 $ — JPY 550,771 4.48 JPY 394,052 Credit Collecting JPY 193,296 $ —

84

ATTACHMENT 10 (Names, locations and related information of investee companies as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION
Initial Investment (Note 1) Investment as of June 30, 2007
Investee company Address Main businesses and products Ending balance Beginning balance Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
UMC GROUP (USA) Sunnyvale, California, USA IC Sales USD 16,438 USD 16,438 16,438 100.00 $ 982,297 $ (34,800 ) $ (34,800 )
UNITED MICROELECTRONICS (EUROPE) B.V. The Netherlands IC Sales USD 5,421 USD 5,421 9 100.00 295,851 11,404 11,404
UMC CAPITAL CORP. Grand Cayman, Cayman Islands Investment holding USD 124,000 USD 124,000 124,000 100.00 3,969,316 13,004 13,004
UNITED MICROELECTRONICS CORP. (SAMOA) Apia, Samoa Investment holding USD 1,000 USD 1,000 280 100.00 5,246 (3,330 ) (3,330 )
UMCI LTD. Singapore Sales and manufacturing of integrated circuits USD 839,880 USD 839,880 880,006 100.00 98 (295 ) (295 )
TLC CAPITAL CO., LTD. Taipei, Taiwan Consulting and planning for investment in new business 6,000,000 6,000,000 600,000 100.00 8,328,633 542,271 542,271
FORTUNE VENTURE CAPITAL CORP. Taipei, Taiwan Consulting and planning for investment in new business 4,999,940 4,999,940 499,994 99.99 11,417,688 231,311 233,558
UNITED MICRODISPLAY OPTRONICS CORP. Hsinchu Science Park, Taiwan Sales and manufacturing of LCOS 1,205,876 1,008,078 84,093 85.24 257,487 (102,430 ) (84,973 )
UMC JAPAN Chiba, Japan Sales and manufacturing of integrated circuits JPY 20,994,400 JPY 20,994,400 496 50.09 5,578,444 (436,861 ) (218,818 )
PACIFIC VENTURE CAPITAL CO., LTD. Taipei, Taiwan Consulting and planning for investment in new business 150,000 150,000 30,000 49.99 127,379 14,288 — Note 2
MTIC HOLDINGS PTE LTD. Singapore Investment holding SGD 4,000 SGD 4,000 4,000 49.94 78,805 (6,755 ) (3,373 )
UNITECH CAPITAL INC. British Virgin Islands Investment holding USD 21,000 USD 21,000 21,000 42.00 1,122,669 209,026 87,791
NEXPOWER TECHNOLOGY CORP. Hsinchu, Taiwan Sales and manufacturing of solar power batteries 293,298 — 29,330 36.66 295,176 5,874 1,891
HSUN CHIEH INVESTMENT CO., LTD. Taipei, Taiwan Investment holding 336,241 336,241 33,624 36.49 4,943,314 1,040,348 367,340
HOLTEK SEMICONDUCTOR INC. Hsinchu Science Park, Taiwan IC design and production 340,415 357,628 49,439 23.12 903,961 410,082 68,147
ITE TECH. INC. Hsinchu Science Park, Taiwan Sales and manufacturing of integrated circuits 186,898 186,898 24,229 21.62 380,738 224,957 39,597

85

ATTACHMENT 10 (Names, locations and related information of investee companies as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITED MICROELECTRONICS CORPORATION
Initial Investment (Note 1) Investment as of June 30, 2007
Investee company Address Main businesses and products Ending balance Beginning balance Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
XGI TECHNOLOGY INC. Hsinchu, Taiwan Cartography chip design and production $ 248,795 $ 248,795 5,868 16.44 $ 40,619 $ (81,805 ) $ (13,475 )
AMIC TECHNOLOGY CORP. Hsinchu Science Park, Taiwan IC design, production and sales 135,000 135,000 16,200 11.82 49,654 (96,166 ) (11,385 )
MEGA MISSION LIMITED PARTNERSHIP Cayman Islands Investment holding USD 67,500 USD 67,500 — 45.00 2,551,817 413,319 185,993 Note 3

Note 1: Initial investment amounts denominated in foreign currencies are expressed in thousands.

Note 2: From the third quarter of 2006, the Company no longer recognized the investment income of PACIFIC VENTURE CAPITAL CO., LTD. because of the liquidation began in July 3, 2006.

Note 3: No shares since it belongs to partnership fund organization.

FORTUNE VENTURE CAPITAL CORP.
Initial Investment (Note 1) Investment as of June 30, 2007
Investee company Address Main businesses and products Ending balance Beginning balance Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
UNITRUTH INVESTMENT CORP. Taipei, Taiwan Investment holding $ 800,000 $ 800,000 80,000 100.00 $ 822,125 $ 60,932 $ 60,932
ANOTO TAIWAN CORP. Taoyuan County, Taiwan Tablet transmission systems and chip-set 39,200 39,200 3,920 49.00 27,169 (11,128 ) (5,453 )
AEVOE INTERNATIONAL LTD. Samoa Design of VOIP Telephone USD 912 USD 912 2,500 44.33 9,256 (3,208 ) 1,473
UWAVE TECHNOLOGY CORP. Hsinchu, Taiwan RF IC Design 85,471 85,471 10,186 44.29 — (59,486 ) (34,076 )
UCA TECHNOLOGY INC. Taipei County, Taiwan Design of MP3 player chip 99,311 99,311 11,285 42.38 29,180 (31,266 ) (13,249 )

86

ATTACHMENT 10 (Names, locations and related information of investee companies as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

FORTUNE VENTURE CAPITAL CORP.
Initial Investment Investment as of June 30, 2007
Investee company Address Main businesses and products Ending balance Beginning balance Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
WALTOP INTERNATIONAL CORP. Hsinchu, Taiwan Tablet PC module, Pen LCD Monitor/module $ 90,000 $ 90,000 6,000 30.00 $ 88,252 $ 1,408 $ 159
CRYSTAL MEDIA INC. Hsinchu, Taiwan Design of VOIP network phones 50,629 50,629 4,493 25.15 37,910 1,910 481
SMEDIA TECHNOLOGY CORP. Hsinchu, Taiwan Multimedia co-processor 93,478 93,478 9,045 23.08 26,464 (52,742 ) (12,173 )
ALLIANCE OPTOTEK CORP. Hsinchu County, Taiwan Design and manufacturing of LED 39,900 39,900 3,500 21.21 26,734 (35,894 ) (7,614 )
AFA TECHNOLOGY, INC. Taipei County, Taiwan IC design 104,001 64,544 6,713 19.43 71,699 (48,610 ) (9,786 )
HIGH POWER LIGHTING CORP. Taipei County, Taiwan High brightness LED package and Lighting module R&D and manufacture 54,300 54,300 4,525 18.10 41,749 (32,099 ) (5,810 )
MOBILE DEVICES INC. Hsinchu County, Taiwan PHS &GSM/PHS dual mode B/B Chip 60,599 56,102 5,713 17.36 20,885 (57,145 ) (10,570 )
AMIC TECHNOLOGY CORP. Hsinchu Science Park, Taiwan IC design, production and sales 291,621 291,621 23,405 17.06 108,422 (96,166 ) (16,420 )
XGI TECHNOLOGY INC. Hsinchu, Taiwan Design and manufacturing of cartography chip 270,483 270,483 4,208 11.81 23,823 (81,805 ) (8,653 )

87

ATTACHMENT 10 (Names, locations and related information of investee companies as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

TLC CAPITAL CO., LTD.

Investee company Address Main businesses and products Initial Investment — Ending balance Beginning balance Investment as of June 30, 2007 — Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
Y.S. FINANCIAL ADVISORY CO., LTD. Taipei, Taiwan Investment Management Consultant, etc. $ 70,000 $ — 7,000 48.95 $ 70,000 $ 128 $ —
YUNG LI INVESTMENTS, INC. Taipei, Taiwan Investment holding 200,000 200,000 0.20 37.04 202,724 1,976 749
SMEDIA TECHNOLOGY CORP. Hsinchu, Taiwan Multimedia co-processor 106,266 106,266 7,084 18.08 90,556 (52,742 ) (9,534 )
UNITRUTH INVESTMENT CORP.
Initial Investment Investment as of June 30, 2007
Investee company Address Main businesses and products Ending balance Beginning balance Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
WALTOP INTERNATIONAL CORP. Hsinchu, Taiwan Tablet PC module, Pen LCD Monitor/module $ 30,000 $ 30,000 2,000 10.00 $ 29,417 $ 1,408 $ 53
CRYSTAL MEDIA INC. Hsinchu, Taiwan Design of VOIP network phones 16,493 16,493 1,587 8.88 13,390 1,910 170
ALLIANCE OPTOTEK CORP. Hsinchu County, Taiwan Design and manufacturing of LED 14,820 14,820 1,300 7.88 9,930 (35,894 ) (2,828 )
SMEDIA TECHNOLOGY CORP. Hsinchu, Taiwan Multimedia co-processor 24,057 24,057 2,570 6.56 13,943 (52,742 ) (3,458 )
UCA TECHNOLOGY INC. Taipei County, Taiwan Design of MP3 player chip 11,910 11,910 1,585 5.95 5,999 (31,266 ) (1,861 )
HIGH POWER LIGHTING CORP. Taipei County, Taiwan High brightness LED package and Lighting module R&D and manufacture 14,700 14,700 1,225 4.90 11,302 (32,099 ) (1,573 )
UWAVE TECHNOLOGY CORP. Hsinchu, Taiwan RF IC Design 6,950 6,950 1,000 4.35 — (59,486 ) (2,235 )

88

ATTACHMENT 10 (Names, locations and related information of investee companies as of June 30, 2007)

(Amount in thousand; Currency denomination in NTD unless otherwise specified)

UNITRUTH INVESTMENT CORP.

Investee company Address Main businesses and products Initial Investment — Ending balance Beginning balance Investment as of June 30, 2007 — Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
MOBILE DEVICES INC. Hsinchu County, Taiwan PHS &GSM/PHS dual mode B/B Chip $ 11,463 $ 11,463 1,250 3.80 $ 3,906 $ (57,145 ) $ (2,360 )
XGI TECHNOLOGY INC. Hsinchu, Taiwan Design and manufacturing of cartography chip 26,400 26,400 1,179 3.31 8,158 (81,805 ) (2,712 )
AFA TECHNOLOGY, INC. Taipei County, Taiwan IC design 5,600 5,600 1,000 2.89 8,890 (48,610 ) (1,427 )
UMC CAPITAL CORP.
Initial Investment (Note 1) Investment as of June 30, 2007
Investee company Address Main businesses and products Ending balance Beginning balance Number of shares (thousand) Percentage of ownership (%) Book value Net income (loss) of investee company Investment income (loss) recognized Note
UMC CAPITAL (USA) Sunnyvale, California, U.S.A. Investment holding USD 200 USD 200 200 100.00 USD 343 USD 17 USD 17
ECP VITA LTD. British Virgin Islands Insurance USD 1,000 USD 1,000 1,000 100.00 USD 1,733 USD 184 USD 184
ACHIEVE MADE INTERNATIONAL LTD. British Virgin Islands Internet Content Provider USD 1,000 USD 1,000 508 43.29 USD 781 USD (303 ) USD (132 )
UC FUND II British Virgin Islands Investment holding USD 3,850 USD 3,850 5,000 35.45 USD 7,684 USD 2,724 USD 965
PARADE TECHNOLOGIES, LTD. U.S.A. IC design USD 2,500 USD 2,500 3,125 23.30 USD 1,459 USD (2,427 ) USD (566 )

Note 1: Initial investment amounts denominated in foreign currencies are expressed in thousands.

89