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6-K 1 sbsitr2q15_6k.htm ITR 2Q15 sbsitr2q15_6k.htm - Generated by SEC Publisher for SEC Filing

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 6-K

REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE

SECURITIES EXCHANGE ACT OF 1934

For August 31, 2015

(Commission File No. 1-31317)

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(Exact name of registrant as specified in its charter)

Basic Sanitation Company of the State of Sao Paulo - SABESP

(Translation of Registrant's name into English)

Rua Costa Carvalho, 300 São Paulo, S.P., 05429-900 Federative Republic of Brazil

(Address of Registrant's principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F. Form 20-F X Form 40-F ______

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1)__.

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7)__.

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 _X___

If "Yes" is marked, indicated below the file number assigned to the registrant in connection with Rule 12g3-2(b):

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Version: 1

Table of Contents

Co m pany Inf orma t io n
C ap ital Br e ak d own 1
C as h Pr o ce e ds 2
Pa ren t Com p any ’s Fi nan ci a l S ta temen ts
S t a t eme n t o f F i n an c i a l Po s it i on – As s e ts 3
S t a t eme n t o f F i n an c i a l Po s it i on – L i a b i li t i e s 4
S t a t eme n t o f In c ome 6
S t a t eme n t o f Co mp re h en s i v e I nc om e 7
S t a t eme n t o f Ca s h F l ow s 8
St a t eme nt o f C han ge s in Equity
1 / 1 / 20 15 to 6 / 3 0 / 20 15 10
1/1/ 20 14 to 6/ 3 0 / 20 14 11
S t a t eme n t o f V alue Ad de d 1 2
C ommen t s o n t he Co mp an y ’ s Pe r f o rm an c e 13
N ot e s t o th e F i na ncial St a t em en t s 1 9
Co mmen t s o n t he Co mp an y ’ s Pr o j e c t i o ns 7 2
Other Information Deemed as Relevant by the Company 7 3
R epo r ts and St at em e nt s
Unqualified Report o n S p eci a l R ev iew 75

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Version: 1

Company Information / Capital Breakdown

Number of Shares Current Quarter
(Units) 6/30/2015
Paid-in Capital
Common 683,509,869
Preferred 0
Total 683,509,869
Treasury Shares
Common 0
Preferred 0
Total 0

PAGE: 1 of 76

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Version: 1

Company Information / Cash Proceeds

| Event | Approval | Proceeds | Date of
Payment | Type of
Share | Earnings per
share |
| --- | --- | --- | --- | --- | --- |
| | | | | | (Reais /
Share) |
| Board of Directors’ Meeting | 3/26/2015 | Interest on Shareholders’ Equity | 6/29/2015 | Common | 0.36913 |

PAGE: 2 of 76

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Version: 1

Parent Company’s Financial Statements/Statement of Financial Position - Assets (R$ thousand)

| Code | Description | Current
Quarter 6/30/2015 | Previous Year 12/31/2014 |
| --- | --- | --- | --- |
| 1 | Total Assets | 31,120,003 | 30,355,440 |
| 1.01 | Current Assets | 2,463,266 | 3,215,445 |
| 1.01.01 | Cash and Cash Equivalents | 803,031 | 1,722,991 |
| 1.01.03 | Accounts Receivable | 1,273,181 | 1,156,785 |
| 1.01.03.01 | Trade Accounts Receivable | 1,144,774 | 1,034,820 |
| 1.01.03.02 | Other Accounts Receivable | 128,407 | 121,965 |
| 1.01.03.02.01 | Balances with Related Parties | 128,407 | 121,965 |
| 1.01.04 | Inventories | 55,330 | 66,487 |
| 1.01.06 | Recoverable Taxes | 112,331 | 148,768 |
| 1.01.06.01 | Current Recoverable Taxes | 112,331 | 148,768 |
| 1.01.08 | Other Current Assets | 219,393 | 120,414 |
| 1.01.08.03 | Other | 219,393 | 120,414 |
| 1.01.08.03.01 | Restricted Cash | 20,171 | 19,750 |
| 1.01.08.03.02 | Financial Asset Held for Trading | 86,930 | 0 |
| 1.01.08.03.20 | Other Accounts Receivable | 112,292 | 100,664 |
| 1.02 | Noncurrent Assets | 28,656,737 | 27,139,995 |
| 1.02.01 | Long-Term Assets | 1,220,398 | 780,362 |
| 1.02.01.03 | Accounts Receivable | 165,243 | 189,458 |
| 1.02.01.03.01 | Trade Accounts Receivable | 165,243 | 189,458 |
| 1.02.01.06 | Deferred Taxes | 75,100 | 209,478 |
| 1.02.01.06.01 | Deferred Income Tax and Social
Contribution | 75,100 | 209,478 |
| 1.02.01.08 | Receivables from Related Parties | 689,267 | 102,018 |
| 1.02.01.08.03 | Receivables from Controlling
Shareholders | 689,267 | 102,018 |
| 1.02.01.09 | Other Noncurrent Assets | 290,788 | 279,408 |
| 1.02.01.09.04 | Escrow Deposits | 81,614 | 69,488 |
| 1.02.01.09.05 | ANA – National Water Agency | 127,855 | 122,634 |
| 1.02.01.09.20 | Other Accounts Receivable | 81,319 | 87,286 |
| 1.02.02 | Investments | 85,683 | 75,262 |
| 1.02.02.01 | Shareholdings | 24,134 | 21,223 |
| 1.02.02.01.04 | Other Shareholdings | 24,134 | 21,223 |
| 1.02.02.02 | Investment Properties | 61,549 | 54,039 |
| 1.02.03 | Property, Plant and Equipment | 307,434 | 304,845 |
| 1.02.04 | Intangible Assets | 27,043,222 | 25,979,526 |
| 1.02.04.01 | Intangible Assets | 27,043,222 | 25,979,526 |
| 1.02.04.01.01 | Concession Contracts | 8,653,155 | 8,650,531 |
| 1.02.04.01.02 | Program Contracts | 6,626,550 | 6,082,062 |
| 1.02.04.01.03 | Service Contracts | 11,471,117 | 10,986,386 |
| 1.02.04.01.04 | Software License | 292,400 | 260,547 |

PAGE: 3 of 76

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Version: 1

Parent Company’s Financial Statements/Statement of Financial Position – Liabilities (R$ thousands)

| Code | Description | Current
Quarter 6/30/2015 | Previous
Year 12/31/2014 |
| --- | --- | --- | --- |
| 2 | Total Liabilities | 31,120,003 | 30,355,440 |
| 2.01 | Current Liabilities | 2,892,090 | 3,480,576 |
| 2.01.01 | Labor and Social Security Liabilities | 353,717 | 387,971 |
| 2.01.01.01 | Social Security Liabilities | 27,256 | 38,427 |
| 2.01.01.02 | Labor Liabilities | 326,461 | 349,544 |
| 2.01.02 | Trade Accounts Payable | 254,389 | 323,513 |
| 2.01.02.01 | Domestic Suppliers | 254,389 | 323,513 |
| 2.01.03 | Tax Liabilities | 70,590 | 74,138 |
| 2.01.03.01 | Federal Tax Liabilities | 62,739 | 64,209 |
| 2.01.03.01.02 | PIS-PASEP and COFINS (taxes on revenue)
Payable | 17,345 | 0 |
| 2.01.03.01.03 | INSS (social security contribution)
Payable | 35,376 | 33,324 |
| 2.01.03.01.20 | Other Federal Taxes | 10,018 | 30,885 |
| 2.01.03.02 | State Taxes Liabilities | 0 | 48 |
| 2.01.03.03 | Municipal Taxes Liabilities | 7,851 | 9,881 |
| 2.01.04 | Loans and Financing | 859,871 | 1,207,126 |
| 2.01.04.01 | Loans and Financing | 493,000 | 484,064 |
| 2.01.04.01.01 | In Domestic Currency | 215,319 | 245,384 |
| 2.01.04.01.02 | In Foreign Currency | 277,681 | 238,680 |
| 2.01.04.02 | Debentures | 357,164 | 714,065 |
| 2.01.04.03 | Financing through finance lease | 9,707 | 8,997 |
| 2.01.05 | Other Liabilities | 756,379 | 862,736 |
| 2.01.05.01 | Payables to Related Parties | 2,423 | 1,569 |
| 2.01.05.01.03 | Payables to Controlling Shareholders | 2,423 | 1,569 |
| 2.01.05.02 | Other | 753,956 | 861,167 |
| 2.01.05.02.01 | Dividends and Interest on Equity
Payable | 126,887 | 214,523 |
| 2.01.05.02.04 | Services Payable | 302,680 | 318,973 |
| 2.01.05.02.05 | Refundable Amounts | 9,264 | 16,929 |
| 2.01.05.02.06 | Program Contract Commitments | 201,762 | 189,551 |
| 2.01.05.02.07 | Private Public Partnership – PPP | 38,977 | 38,047 |
| 2.01.05.02.09 | Indemnities | 9,875 | 10,516 |
| 2.01.05.02.20 | Other Payables | 64,511 | 72,628 |
| 2.01.06 | Provisions | 597,144 | 625,092 |
| 2.01.06.01 | Tax, Social Security, Labor and Civil
Provisions | 122,573 | 120,003 |
| 2.01.06.01.01 | Tax Provisions | 10,157 | 8,681 |
| 2.01.06.01.02 | Social Security and Labor Provisions | 44,105 | 48,340 |
| 2.01.06.01.04 | Civil Provisions | 68,311 | 62,982 |
| 2.01.06.02 | Other Provisions | 474,571 | 505,089 |
| 2.01.06.02.03 | Provisions for Environmental Liabilities and
Decommissioning | 12,724 | 62,250 |
| 2.01.06.02.04 | Provisions for Customers | 393,907 | 382,937 |
| 2.01.06.02.05 | Provisions for Suppliers | 67,940 | 59,902 |
| 2.02 | Non-Current Liabilities | 14,290,019 | 13,570,461 |
| 2.02.01 | Loans and Financing | 10,231,564 | 9,578,641 |
| 2.02.01.01 | Loans and Financing | 6,553,578 | 5,718,135 |
| 2.02.01.01.01 | In Domestic Currency | 1,709,266 | 1,610,523 |
| 2.02.01.01.02 | In Foreign Currency | 4,844,312 | 4,107,612 |
| 2.02.01.02 | Debentures | 3,183,949 | 3,386,913 |

PAGE: 4 of 76

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Version: 1

Parent Company’s Financial Statements/Statement of Financial Position – Liabilities (R$ thousands)

| Code | Description | Current
Quarter 6/30/2015 | Previous Year 12/31/2014 |
| --- | --- | --- | --- |
| 2.02.01.03 | Financing through finance lease | 494,037 | 473,593 |
| 2.02.02 | Other Payables | 3,679,621 | 3,396,565 |
| 2.02.02.02 | Other | 3,679,621 | 3,396,565 |
| 2.02.02.02.04 | Pension Plan Liabilities | 2,810,893 | 2,729,598 |
| 2.02.02.02.05 | Program Contract Commitments | 41,790 | 18,208 |
| 2.02.02.02.06 | Private Public Partnership – PPP | 504,378 | 330,236 |
| 2.02.02.02.07 | Indemnities | 12,184 | 8,925 |
| 2.02.02.02.08 | Labor Liabilities | 17,223 | 23,498 |
| 2.02.02.02.09 | Deferred COFINS and PASEP | 131,135 | 129,351 |
| 2.02.02.02.20 | Other Payables | 162,018 | 156,749 |
| 2.02.04 | Provisions | 378,834 | 595,255 |
| 2.02.04.01 | Tax, Pension Plan, Labor and Civil
Provisions | 251,263 | 285,197 |
| 2.02.04.01.01 | Tax Provisions | 48,589 | 46,873 |
| 2.02.04.01.02 | Pension Plan and Labor Provisions | 159,442 | 184,893 |
| 2.02.04.01.04 | Civil Provisions | 43,232 | 53,431 |
| 2.02.04.02 | Other Provisions | 127,571 | 310,058 |
| 2.02.04.02.03 | Provisions for Environmental Liabilities and
Decommissioning | 63,922 | 163,347 |
| 2.02.04.02.04 | Provisions for Customers | 62,099 | 141,237 |
| 2.02.04.02.05 | Provisions for Suppliers | 1,550 | 5,474 |
| 2.03 | Equity | 13,937,894 | 13,304,403 |
| 2.03.01 | Paid-Up Capital | 10,000,000 | 10,000,000 |
| 2.03.04 | Profit Reserve | 3,672,149 | 3,694,151 |
| 2.03.04.01 | Legal Reserves | 758,141 | 758,141 |
| 2.03.04.08 | Additional Dividend Proposed | 0 | 22,002 |
| 2.03.04.10 | Reserve for Investments | 2,914,008 | 2,914,008 |
| 2.03.05 | Retained Earnings/Accumulated Losses | 655,493 | 0 |
| 2.03.06 | Equity Valuation Adjustments | -389,748 | -389,748 |

PAGE: 5 of 76

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Version: 1

Parent Company’s Financial Statements/Statement of Income (R$ thousands)

| Code | Description | Current Quarter 4/1/2015 to 6/30/2015 | YTD
Current Year 1/1/2015 to 6/30/2015 | Same
Quarter Previous Year 4/1/2014 to 6/30/2014 | YTD
Previous Year 1/1/2014 to 6/30/2014 |
| --- | --- | --- | --- | --- | --- |
| 3.01 | Revenue from Sales and/or Services | 2,822,852 | 5,291,493 | 2,754,153 | 5,546,083 |
| 3.02 | Cost of Sales and/or Services | -2,105,409 | -3,864,086 | -1,830,133 | -3,508,850 |
| 3.02.01 | Cost of Sales and/or Services | -1,220,186 | -2,402,487 | -1,165,916 | -2,324,161 |
| 3.02.02 | Construction Cost | -885,223 | -1,461,599 | -664,217 | -1,184,689 |
| 3.03 | Gross Profit | 717,443 | 1,427,407 | 924,020 | 2,037,233 |
| 3.04 | Operating Income/Expenses | -233,241 | 193,057 | -479,678 | -880,386 |
| 3.04.01 | Selling Expenses | -146,971 | -331,452 | -215,232 | -371,829 |
| 3.04.02 | General and Administrative Expenses | -97,932 | 479,676 | -269,704 | -470,378 |
| 3.04.04 | Other Operating Income | 35,186 | 64,469 | 21,638 | 38,145 |
| 3.04.04.01 | Other Operating Income | 39,440 | 73,526 | 25,091 | 42,905 |
| 3.04.04.02 | COFINS and PASEP | -4,254 | -9,057 | -3,453 | -4,760 |
| 3.04.05 | Other Operating Expenses | -23,409 | -20,635 | -16,429 | -76,005 |
| 3.04.05.01 | Loss on Write-off of Property, Plant and Equipment
Items | -7,539 | 762 | -6,445 | -52,092 |
| 3.04.05.03 | Tax Incentives | -7,770 | -7,770 | -7,702 | -8,567 |
| 3.04.05.04 | Surplus Cost of Traded Electricity | -6,086 | -11,618 | 0 | 0 |
| 3.04.05.06 | Provision for losses - Diadema and
Saned | 0 | 0 | -1,967 | -14,967 |
| 3.04.05.20 | Other | -2,014 | -2,009 | -315 | -379 |
| 3.04.06 | Equity in the Earnings (Losses) of
Investees | -115 | 999 | 49 | -319 |
| 3.05 | Income Before Financial Result and
Taxes | 484,202 | 1,620,464 | 444,342 | 1,156,847 |
| 3.06 | Financial Result | 155,392 | -830,368 | -21,577 | 5,942 |
| 3.06.01 | Finance Income | 125,390 | 229,778 | 84,607 | 181,115 |
| 3.06.01.01 | Finance Income | 125,342 | 229,171 | 84,875 | 181,727 |
| 3.06.01.02 | Foreign Exchange Gains | 48 | 607 | -268 | -612 |
| 3.06.02 | Finance Expenses | 30,002 | -1,060,146 | -106,184 | -175,173 |
| 3.06.02.01 | Finance Expenses | -178,911 | -384,534 | -190,409 | -376,407 |
| 3.06.02.02 | Foreign Exchange Losses | 208,913 | -675,612 | 84,225 | 201,234 |
| 3.07 | Earnings Before Income Tax | 639,594 | 790,096 | 422,765 | 1,162,789 |
| 3.08 | Income Tax and Social Contribution | -302,279 | -134,603 | -120,343 | -382,781 |
| 3.08.01 | Current | -225 | -225 | -135,474 | -412,191 |
| 3.08.02 | Deferred | -302,054 | -134,378 | 15,131 | 29,410 |
| 3.09 | Net Result from Continued Operations | 337,315 | 655,493 | 302,422 | 780,008 |
| 3.11 | Profit/Loss for the Period | 337,315 | 655,493 | 302,422 | 780,008 |
| 3.99 | Earnings per Share - (Reais / Share) | | | | |
| 3.99.01 | Basic Earnings per Share | | | | |
| 3.99.01.01 | Common Share | 0.49350 | 0.95901 | 0.44246 | 1.14118 |
| 3.99.02 | Diluted Earnings per Share | | | | |
| 3.99.02.01 | Common Share | 0.49350 | 0.95901 | 0.44246 | 1.14118 |

PAGE: 6 of 76

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Version: 1

Parent Company’s Financial Statements / Statement of Comprehensive Income

(R$ thousands)

| Code | Description | Current Quarter 4/1/2015 to 6/30/2015 | YTD
Current Year 1/1/2015 to 6/30/2015 | Same
Quarter Previous Year 4/1/2014 to 6/30/2014 | YTD
Previous Year 1/1/2014 to 6/30/2014 |
| --- | --- | --- | --- | --- | --- |
| 4.01 | Net Income for the Period | 337,315 | 655,493 | 302,422 | 780,008 |
| 4.03 | Comprehensive Income for the Period | 337,315 | 655,493 | 302,422 | 780,008 |

PAGE: 7 of 76

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Version: 1

Parent Company’s Financial Statements/Statement of Cash Flows – Indirect Method (R$ thousands)

| Code | Description | YTD Current Year 1/1/2015
to 6/30/2015 | YTD Previous Year 1/1/2014 to 6/30/2014 |
| --- | --- | --- | --- |
| 6.01 | Net Cash from Operating Activities | 935,161 | 1,277,913 |
| 6.01.01 | Cash from Operations | 1,475,712 | 1,991,784 |
| 6.01.01.01 | Profit Before Income Tax and Social
Contribution | 790,096 | 1,162,789 |
| 6.01.01.02 | Provision and Inflation Adjustments on
Provisions | -171,045 | 95,467 |
| 6.01.01.03 | GESP Agreement | -696,283 | 0 |
| 6.01.01.04 | Financial Charges from Customers | -111,328 | -99,846 |
| 6.01.01.05 | Residual Value of Written-off Property, Plant and
Equipment and Intangible Assets | 3,491 | 1,801 |
| 6.01.01.06 | Depreciation and Amortization | 537,395 | 482,852 |
| 6.01.01.07 | Interest on Loans and Financing
Payable | 232,201 | 216,351 |
| 6.01.01.08 | Monetary and Foreign Exchange Change on Loans and
Financing | 773,054 | -139,278 |
| 6.01.01.09 | Interest and Monetary Change on
Liabilities | 12,123 | 10,850 |
| 6.01.01.10 | Interest and Monetary Change in Assets | -28,367 | -5,626 |
| 6.01.01.11 | Allowance for Doubtful Accounts | 47,520 | 76,328 |
| 6.01.01.12 | Provision for Consent Decree (TAC) | -43,148 | 23,986 |
| 6.01.01.13 | Equity in the Earnings (Losses) of
Investees | -999 | 319 |
| 6.01.01.14 | Provision for Sabesprev Mais | 4,605 | 3,515 |
| 6.01.01.15 | Other Provisions/Reversals | -2,298 | 60,967 |
| 6.01.01.16 | Transfer of Funds to São Paulo Municipal
Government | -3,808 | -18,051 |
| 6.01.01.17 | Gross Margin over Intangible Assets Resulting from
Concession Contracts | -31,627 | -25,287 |
| 6.01.01.18 | Pension Plan Liabilities | 164,130 | 144,647 |
| 6.01.02 | Changes in Assets and Liabilities | -133,788 | -18,549 |
| 6.01.02.01 | Trade Accounts Receivable | -18,269 | 262,977 |
| 6.01.02.02 | Balances and Related Party
Transactions | 13,019 | 30,566 |
| 6.01.02.03 | Inventories | 11,045 | -256 |
| 6.01.02.04 | Recoverable Taxes | 36,437 | 0 |
| 6.01.02.05 | Other Accounts Receivable | -12,408 | -39,123 |
| 6.01.02.06 | Escrow Deposits | 14,978 | 10,345 |
| 6.01.02.08 | Contractors and Suppliers | -15,114 | -18,357 |
| 6.01.02.09 | Payroll, Provisions and Social
Contribution | 8,894 | 7,843 |
| 6.01.02.10 | Pension Plan Liabilities | -82,835 | -78,824 |
| 6.01.02.11 | Taxes and Contributions Payable | 11,317 | -87,530 |
| 6.01.02.12 | Services Received | -12,485 | 28,966 |
| 6.01.02.13 | Other Liabilities | -16,827 | -13,121 |
| 6.01.02.14 | Provisions | -73,324 | -123,598 |
| 6.01.02.15 | Deferred COFINS/PASEP | 1,784 | 1,563 |
| 6.01.03 | Other | -406,763 | -695,322 |
| 6.01.03.01 | Interest Paid | -389,020 | -307,106 |
| 6.01.03.02 | Income Tax and Social Contribution
Paid | -17,743 | -388,216 |
| 6.02 | Net Cash from Investing Activities | -1,209,437 | -1,192,404 |
| 6.02.01 | Acquisition of Property, Plant and Equipment | -14,784 | -52,135 |
| 6.02.02 | Acquisition of Intangible Assets | -1,196,001 | -1,130,122 |
| 6.02.03 | Increase in Investments | 243 | -17 |
| 6.02.04 | Restricted Cash | -421 | -10,130 |
| 6.02.05 | Dividends received | 1,526 | 0 |

PAGE: 8 of 76

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Version: 1

Parent Company’s Financial Statements/Statement of Cash Flows – Indirect Method (R$ thousands)

| Code | Description | YTD Current Year 1/1/2015 to
6/30/2015 | YTD Previous Year 1/1/2014 to
6/30/2014 |
| --- | --- | --- | --- |
| 6.03 | Net Cash from Financing Activities | -645,684 | -43,799 |
| 6.03.01 | Funding – Loans | 388,012 | 795,911 |
| 6.03.02 | Amortization of Loans | -876,443 | -326,390 |
| 6.03.03 | Payment of Interest on Shareholders’
Equity | -106,985 | -467,439 |
| 6.03.04 | Public-Private Partnership (PPP) | -11,333 | -9,921 |
| 6.03.05 | Program Contract Commitments | -38,935 | -35,960 |
| 6.05 | Increase (Decrease) in Cash and Cash
Equivalents | -919,960 | 41,710 |
| 6.05.01 | Opening Cash and Cash Equivalents | 1,722,991 | 1,782,001 |
| 6.05.02 | Closing Cash and Cash Equivalents | 803,031 | 1,823,711 |

PAGE: 9 of 76

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Version: 1

Parent Company’s Financial Statements/Statement of Changes in Equity - 1/1/2015 to 6/30/2015 (R$ thousands)

| Code | Description | Paid-up
Capital | Capital
Reserves, Options Granted and Treasury Shares | Profit
Reserves | Retained
Earnings/ Accumulated Losses | Other
Comprehensive Income | Total
Equity |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 5.01 | Opening Balances | 10,000,000 | 0 | 3,694,151 | 0 | -389,748 | 13,304,403 |
| 5.03 | Opening Balances | 10,000,000 | 0 | 3,694,151 | 0 | -389,748 | 13,304,403 |
| 5.04 | Capital Transactions with Partners | 0 | 0 | -22,002 | 0 | 0 | -22,002 |
| 5.04.08 | Additional Dividends Approved | 0 | 0 | -22,002 | 0 | 0 | -22,002 |
| 5.05 | Total Comprehensive Income | 0 | 0 | 0 | 655,493 | 0 | 655,493 |
| 5.05.01 | Net Income for the Period | 0 | 0 | 0 | 655,493 | 0 | 655,493 |
| 5.07 | Closing Balances | 10,000,000 | 0 | 3,672,149 | 655,493 | -389,748 | 13,937,894 |

PAGE: 10 of 76

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Version: 1

Parent Company’s Financial Statements/Statement of Changes in Equity - 1/1/2014 to 6/30/2014 (R$ thousands)

| Code | Description | Paid-up
Capital | Capital
Reserves, Options Granted and Treasury Shares | Profit
Reserves | Retained
Earnings/ Accumulated Losses | Other
Comprehensive Income | Total
Equity |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 5.01 | Opening Balances | 6,203,688 | 124,255 | 6,736,389 | 0 | -133,531 | 12,930,801 |
| 5.03 | Opening Balances | 6,203,688 | 124,255 | 6,736,389 | 0 | -133,531 | 12,930,801 |
| 5.04 | Capital Transactions with Partners | 0 | 0 | -42,862 | 0 | 0 | -42,862 |
| 5.04.08 | Additional Dividends Approved | 0 | 0 | -42,862 | 0 | 0 | -42,862 |
| 5.05 | Total Comprehensive Income | 0 | 0 | 0 | 780,008 | 0 | 780,008 |
| 5.05.01 | Net Income for the Period | 0 | 0 | 0 | 780,008 | 0 | 780,008 |
| 5.06 | Internal Changes in the Shareholders’
Equity | 3,796,312 | -124,255 | -3,672,057 | 0 | 0 | 0 |
| 5.06.04 | Capitalization of Reserves | 3,796,312 | -124,255 | -3,672,057 | 0 | 0 | 0 |
| 5.07 | Closing Balances | 10,000,000 | 0 | 3,021,470 | 780,008 | -133,531 | 13,667,947 |

PAGE: 11 of 76

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Version: 1

Parent Company’s Financial Statements/Statement of Value Added (R$ thousands)

| PBRCode | Description | YTD Current Year 1/1/2015 to
6/30/2015 | YTD Previous Year 1/1/2014 to
6/30/2014 |
| --- | --- | --- | --- |
| 7.01 | Revenue | 5,570,966 | 5,845,001 |
| 7.01.01 | Operating Revenue | 4,051,734 | 4,668,448 |
| 7.01.02 | Other Revenue | 73,526 | 42,905 |
| 7.01.03 | Revenue from Construction of Own
Assets | 1,493,226 | 1,209,976 |
| 7.01.04 | Allowance for/Reversal of Doubtful
Accounts | -47,520 | -76,328 |
| 7.02 | Inputs Acquired from Third Parties | -2,438,564 | -2,566,871 |
| 7.02.01 | Costs of Sales and Services | -2,292,127 | -2,079,367 |
| 7.02.02 | Materials, Energy, Outsourced Services and
Other | -125,802 | -411,499 |
| 7.02.04 | Other | -20,635 | -76,005 |
| 7.03 | Gross Value Added | 3,132,402 | 3,278,130 |
| 7.04 | Retentions | -537,395 | -482,852 |
| 7.04.01 | Depreciation, Amortization and
Depletion | -537,395 | -482,852 |
| 7.05 | Net Value Added Produced | 2,595,007 | 2,795,278 |
| 7.06 | Value Added Received through Transfer | 927,060 | 180,796 |
| 7.06.01 | Equity in the Earnings (Losses) of
Investees | 999 | -319 |
| 7.06.02 | Finance Income | 229,778 | 181,115 |
| 7.06.03 | Other | 696,283 | 0 |
| 7.06.03.01 | GESP Reimbursement – Benefits Paid | 696,283 | 0 |
| 7.07 | Total Value Added to Distribute | 3,522,067 | 2,976,074 |
| 7.08 | Value Added Distribution | 3,522,067 | 2,976,074 |
| 7.08.01 | Personnel | 986,815 | 959,765 |
| 7.08.01.01 | Direct Compensation | 643,849 | 631,107 |
| 7.08.01.02 | Benefits | 276,472 | 254,575 |
| 7.08.01.03 | Government Severance Indemnity Fund for Employees
(FGTS) | 66,494 | 74,083 |
| 7.08.02 | Taxes and Contributions | 630,092 | 948,275 |
| 7.08.02.01 | Federal | 581,662 | 897,965 |
| 7.08.02.02 | State | 33,262 | 35,867 |
| 7.08.02.03 | Municipal | 15,168 | 14,443 |
| 7.08.03 | Value Distributed to Providers of
Capital | 1,249,667 | 288,026 |
| 7.08.03.01 | Interest | 1,208,167 | 249,891 |
| 7.08.03.02 | Rental | 41,500 | 38,135 |
| 7.08.04 | Value Distributed to Shareholders | 655,493 | 780,008 |
| 7.08.04.03 | Retained Earnings/Accumulated Loss for the
Period | 655,493 | 780,008 |

PAGE: 12 of 76

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Comments on the Company’s Performance Version: 1

1. Financial highlights

2Q15 2Q14 Chg. (R$) % 1H15 1H14 Chg. (R$) R$ million — %
(+) Gross operating revenue 2,047.2 2,224.0 (176.8) (7.9) 4,051.7 4,668.4 (616.7) (13.2)
(+) Construction revenue 904.8 678.7 226.1 33.3 1,493.2 1,210.0 283.2 23.4
(-) COFINS and PASEP taxes 129.1 148.6 (19.5) (13.1) 253.4 332.3 (78.9) (23.7)
(=) Net operating revenue 2,822.9 2,754.1 68.8 2.5 5,291.5 5,546.1 (254.6) (4.6)
(-) Costs
and expenses 1,465.1 1,650.8 (185.7) (11.2) 2,254.3 3,166.4 (912.1) (28.8)
(-) Construction costs 885.2 664.2 221.0 33.3 1,461.6 1,184.7 276.9 23.4
(+) Equity result (0.1) - (0.1) - 1.0 (0.3) 1.3 (433.3)
(+) Other operating revenue/expenses, net 11.7 5.2 6.5 125.0 43.8 (37.8) 81.6 (215.9)
(=) Earnings before financial
result, income tax and social contribution 484.2 444.3 39.9 9.0 1,620.4 1,156.9 463.5 40.1
(+) Financial result 155.4 (21.6) 177.0 (819.4) (830.3) 5.9 (836.2) n.m.
(=) Earnings before income tax
and social contribution 639.6 422.7 216.9 51.3 790.1 1,162.8 (372.7) (32.1)
(-) Income tax
and social contribution 302.3 120.3 182.0 151.3 134.6 382.8 (248.2) (64.8)
Net Income 337.3 302.4 34.9 11.5 655.5 780.0 (124.5) (16.0)
Earnings per share* (R$) 0.49 0.44 0.96 1.14
* Total shares = 683,509,869

Adjusted EBITDA Reconciliation (Non-accounting measures)

2Q15 2Q14 Chg. (R$) % 1H15 1H14 Chg. (R$) %
Net income 337.3 302.4 34.9 11.5 655.5 780.0 (124.5) (16.0)
(-) Income tax
and social contribution 302.3 120.3 182.0 151.3 134.6 382.8 (248.2) (64.8)
(+) Financial result (155.4) 21.6 (177.0) (819.4) 830.3 (5.9) 836.2 n.m.
(+) Other operating revenues/expenses, net (11.7) (5.2) (6.5) 125.0 (43.8) 37.8 (81.6) (215.9)
(=) Adjusted EBIT* 472.5 439.1 33.4 7.6 1,576.6 1,194.7 381.9 32.0
(+) Depreciation and amortization 284.1 222.6 61.5 27.6 537.4 482.9 54.5 11.3
(=) Adjusted EBITDA ** 756.6 661.7 94.9 14.3 2,114.0 1,677.6 436.4 26.0
(%) Adjusted EBITDA margin 26.8 24.0 40.0 30.2

(*) Adjusted EBIT is net income before: (i) other operating revenues/expenses; (ii) financial result; and (iii) income tax and social contribution.

(**) Adjusted EBITDA is net income before: (i) depreciation and amortization expenses; (ii) income tax and social contribution; (iii) financial result; and (iv) other operating revenues/expenses, net.

In 2Q15, net operating revenue, including construction revenue, reached R$ 2.8 billion; a 2.5% increase compared to 2Q14.

Costs and expenses, including construction costs, totaled R$ 2.4 billion, up by 1.5% compared to R$ 2.3 billion recorded in 2Q14.

Adjusted EBIT, in the amount of R$ 472.5 million, grew 7.6% from R$ 439.1 million recorded in the same quarter of the previous year.

Adjusted EBITDA, in the amount of R$ 756.6 million, increased 14.3% from R$ 661.7 million recorded in 2Q14 (R$ 3,355.1 million in the last 12 months) .

The adjusted EBITDA margin was 26.8% in 2Q15, versus 24.0% in 2Q14 (30.6% in the last 12 months). Excluding construction revenues and construction costs, the adjusted EBITDA margin was 38.4% in 2Q15 (31.2% in 2Q14 and 42.4% in the last 12 months).

Net income totaled R$ 337.3 million, 11.5% higher than R$ 302.4 million recorded in 2Q14.

2. Gross operating revenue

Gross operating revenue from water and sewage, not including construction revenue, totaled R$ 2.0 billion, a drop of R$ 176.8 million or 7.9%, when compared to the R$ 2.2 billion recorded in 2Q14.

The main factors that led to this variation were:

· Bonus granted within the Water Consumption Reduction Incentive Program, with a R$ 231.0 million impact in 2Q15, versus the R$ 88.1 million granted in 2Q14, leading to a decrease of 6.4% in gross operating revenue;

· Decrease of 7.5% in the Company’s total billed volume (8.3% in water and 6.3% in sewage); and

· Decrease in the average billed price, due to the migration of clients to lower volume of consumption ranges.

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Comments on the Company’s Performance Version: 1

The decline in gross operating revenue was mitigated by the application of contingency tariff, in the amount of R$123.0 million, and by the application of the following adjustments:

· 6.5% repositioning tariff index since December 2014; and

· 15.2% tariff increase (7.8% ordinary tariff adjustment and 6.9% Extraordinary Tariff Revision) since June 2015, with a 1.5% impact in the quarter.

3. Construction revenue

Construction revenue increased R$ 226.1 million or 33.3%, when compared to 2Q14. The variation was mainly due to higher investments in 2Q15.

4. Billed volume

The following tables show the water and sewage billed volume, quarter-on-quarter and semester-on-semester, per customer category and region.

| WATER AND SEWAGE BILLED
VOLUME (1) PER CUSTOMER CATEGORY - million
m 3 | | | | | | | | | |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| | | Water | | | Sewage | | Water +
Sewage | | |
| Category | 2Q15 | 2Q14 | % | 2Q15 | 2Q14 | % | 2Q15 | 2Q14 | % |
| Residential | 358.0 | 382.0 | (6.3) | 301.3 | 319.2 | (5.6) | 659.3 | 701.2 | (6.0) |
| Commercial | 39.4 | 42.7 | (7.7) | 37.5 | 40.3 | (6.9) | 76.9 | 83.0 | (7.3) |
| Industrial | 8.0 | 9.9 | (19.2) | 9.7 | 10.9 | (11.0) | 17.7 | 20.8 | (14.9) |
| Public | 10.7 | 13.3 | (19.5) | 8.4 | 10.3 | (18.4) | 19.1 | 23.6 | (19.1) |
| Total
retail | 416.1 | 447.9 | (7.1) | 356.9 | 380.7 | (6.3) | 773.0 | 828.6 | (6.7) |
| Wholesale | 52.4 | 63.1 | (17.0) | 5.9 | 6.6 | (10.6) | 58.3 | 69.7 | (16.4) |
| Total | 468.5 | 511.0 | (8.3) | 362.8 | 387.3 | (6.3) | 831.3 | 898.3 | (7.5) |
| | 1H15 | 1H14 | % | 1H15 | 1H14 | % | 1H15 | 1H14 | % |
| Residential | 727.0 | 792.6 | (8.3) | 609.9 | 659.5 | (7.5) | 1,336.9 | 1,452.1 | (7.9) |
| Commercial | 79.9 | 87.7 | (8.9) | 75.6 | 82.3 | (8.1) | 155.5 | 170.0 | (8.5) |
| Industrial | 16.5 | 20.1 | (17.9) | 19.6 | 22.0 | (10.9) | 36.1 | 42.1 | (14.3) |
| Public | 21.2 | 27.1 | (21.8) | 16.5 | 20.9 | (21.1) | 37.7 | 48.0 | (21.5) |
| Total
retail | 844.6 | 927.5 | (8.9) | 721.6 | 784.7 | (8.0) | 1,566.2 | 1,712.2 | (8.5) |
| Wholesale | 105.7 | 138.5 | (23.7) | 12.4 | 13.1 | (5.3) | 118.1 | 151.6 | (22.1) |
| Total | 950.3 | 1,066.0 | (10.9) | 734.0 | 797.8 | (8.0) | 1,684.3 | 1,863.8 | (9.6) |
| WATER AND SEWAGE BILLED
VOLUME (1) PER REGION - million
m 3 | | | | | | | | | |
| | Water | | | Sewage | | | Water +
Sewage | | |
| Region | 2Q15 | 2Q14 | % | 2Q15 | 2Q14 | % | 2Q15 | 2Q14 | % |
| Metropolitan | 267.1 | 292.8 | (8.8) | 231.7 | 251.2 | (7.8) | 498.8 | 544.0 | (8.3) |
| Regional (2) | 149.0 | 155.1 | (3.9) | 125.2 | 129.5 | (3.3) | 274.2 | 284.6 | (3.7) |
| Total
retail | 416.1 | 447.9 | (7.1) | 356.9 | 380.7 | (6.3) | 773.0 | 828.6 | (6.7) |
| Wholesale | 52.4 | 63.1 | (17.0) | 5.9 | 6.6 | (10.6) | 58.3 | 69.7 | (16.4) |
| Total | 468.5 | 511.0 | (8.3) | 362.8 | 387.3 | (6.3) | 831.3 | 898.3 | (7.5) |
| | 1H15 | 1H14 | % | 1H15 | 1H14 | % | 1H15 | 1H14 | % |
| Metropolitan | 535.0 | 601.9 | (11.1) | 462.6 | 514.1 | (10.0) | 997.6 | 1,116.0 | (10.6) |
| Regional (2) | 309.6 | 325.6 | (4.9) | 259.0 | 270.6 | (4.3) | 568.6 | 596.2 | (4.6) |
| Total
retail | 844.6 | 927.5 | (8.9) | 721.6 | 784.7 | (8.0) | 1,566.2 | 1,712.2 | (8.5) |
| Wholesale | 105.7 | 138.5 | (23.7) | 12.4 | 13.1 | (5.3) | 118.1 | 151.6 | (22.1) |
| Total | 950.3 | 1,066.0 | (10.9) | 734.0 | 797.8 | (8.0) | 1,684.3 | 1,863.8 | (9.6) |

(1) Unaudited

(2) Including coastal and interior region

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Comments on the Company’s Performance Version: 1

5. Costs, administrative and selling expenses

In 2Q15, costs, administrative and selling expenses, grew 1.5% (R$ 35.3 million). Excluding construction costs, total costs and expenses dropped 11.2%. As a percentage of net revenue, cost and expenses were 84.1% in 2Q14 and 83.3% in 2Q15 .

R$ million

2Q15 2Q14 Chg. (R$) % 1H15 1H14 Chg. (R$) %
Payroll and benefits 528.8 551.4 (22.6) (4.1) 1,063.4 1,048.1 15.3 1.5
Supplies 43.1 46.9 (3.8) (8.1) 91.7 94.1 (2.4) (2.6)
Treatment supplies 63.6 64.6 (1.0) (1.5) 135.9 134.3 1.6 1.2
Services 270.0 351.6 (81.6) (23.2) 566.0 666.2 (100.2) (15.0)
Electric power 208.3 144.5 63.8 44.2 367.4 284.5 82.9 29.1
General expenses 48.7 190.0 (141.3) (74.4) 103.1 342.7 (239.6) (69.9)
Tax expenses 18.3 17.6 0.7 4.0 38.2 37.3 0.9 2.4
São Paulo state government reimbursement - - - - (696.3) - (696.3) -
Sub-total 1,180.8 1,366.6 (185.8) (13.6) 1,669.4 2,607.2 (937.8) (36.0)
Depreciation and amortization 284.1 222.6 61.5 27.6 537.4 482.9 54.5 11.3
Credit write-offs 0.2 61.6 (61.4) (99.7) 47.5 76.3 (28.8) (37.7)
Sub-total 284.3 284.2 0.1 0.0 584.9 559.2 25.7 4.6
Costs and expenses 1,465.1 1,650.8 (185.7) (11.2) 2,254.3 3,166.4 (912.1) (28.8)
Construction costs 885.2 664.2 221.0 33.3 1,461.6 1,184.7 276.9 23.4
Costs, adm., selling and construction expenses 2,350.3 2,315.0 35.3 1.5 3,715.9 4,351.1 (635.2) (14.6)
% of net revenue 83.3 84.1 70.2 78.5

5.1. Payroll and benefits

In 2Q15 payroll and benefits dropped R$ 22.6 million or 4.1%, due to the following :

· R$ 15.9 million in provisions for severance payments (TAC); and

· R$ 10.7 million in expenses related to the Profit Sharing Program, due to a higher reversion of provision in 2Q15, as a result of achievements lower than the targets estimated for the period.

The average wage increase of 6.8%, since May 2014 and of 9.7% since May 2015 were offset by the 4.4% drop in the number of employees, that reduced from 14,799 in 2Q14 to 14,147 this quarter.

5.2. Supplies

In 2Q15, expenses with supplies decreased R$ 3.8 million or 8.1%, from R$ 46.9 million to R$ 43.1 million, mostly due to lower use of materials in preventive and corrective maintenance in several water and sewage systems, thus, resulting in a reduction of R$ 3.0 million.

5.3. Services

Services expenses, in the amount of R$ 270.0 million, dropped R$ 81.6 million or 23.2%, in comparison to R$351.6 million in 2Q14. The main factors were:

· Advertising campaigns, in the amount of R$ 38.3 million, mainly due to the intensification in 2Q14, for the rational use of water;

· Estimate of service expenses, totaling R$ 22.1 million, especially due to the lower expense related to advertising campaigns in 2Q15; and

· Expenses with risk contracts for credit recovery, in the amount of R$ 7.8 million.

5.4. Electric power

Electric power expenses totaled R$ 208.3 million, an increase of R$ 63.8 million or 44.2% in comparison to the R$ 144.5 million in 2Q14, chiefly due to the following.

· Average increase of 82.0% in the regulated market tariffs (ACR), with a 10.3% decrease in consumption; and

· Average increase of 210.4% in the grid market tariffs (TUSD).

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Comments on the Company’s Performance Version: 1

The regulated market (ACR) accounts for 69.2% of the total electric power consumed by the Company, while the grid market represents 11.5% of total consumption.

5.5. General expenses

General expenses dropped R$ 141.3 million or 74.4%, totaling R$ 48.7 million, versus the R$ 190.0 million recorded in 2Q14 mainly due to:

· R$ 117.8 million decrease in the provision for lawsuits; and

· Lower provision for the Municipal Fund for Environmental Sanitation and Infrastructure , in the amount of R$ 13.3 million, as a result of the decrease in revenues with the municipality of São Paulo.

5.6. Depreciation and amortization

R$ 61.5 million increase or 27.6%, reaching R$ 284.1 million in comparison to the R$ 222.6 million recorded in 2Q14, mostly related to the addition intangible assets in operation.

5.7. Credit write-offs

Credit write-offs decreased R$ 61.4 million, especially due to higher allowance for losses occurred in 2Q14, in municipalities served with water on wholesale basis.

6. Other operating revenues and expenses, net

Other net operational revenues and expenses reported an upturn of R$ 6.5 million, mainly due to the gain from selling surplus energy in 2Q15, in the amount of R$ 9.7 million.

7. Financial result 2Q15 2Q14 Chg. R$ million — %
Financial expenses, net of revenues (64.5) (74.4) 9.9 (13.3)
Net monetary and exchange variation 219.9 52.8 167.1 316.5
Financial result 155.4 (21.6) 177.0 (819.4)
7.1. Financial revenues
and expenses
R$ million
2Q15 2Q14 Chg. %
Financial expenses
Interest and charges on international loans and financing (25.1) (23.1) (2.0) 8.7
Interest and charges on domestic loans and financing (81.0) (79.9) (1.1) 1.4
Other financial expenses (48.9) (45.3) (3.6) 7.9
Total financial expenses (155.0) (148.3) (6.7) 4.5
Financial revenues 90.5 73.9 16.6 22.5
Financial expenses net of revenues (64.5) (74.4) 9.9 (13.3)
7.1.1. Financial expenses Financial expenses grew R$ 6.7 million. The main
reasons were:

· R$ 3.3 million upturn in other financial expenses, mainly due to the increased recognition of interest arising from the startup of a sewage treatment station, financed through leasing; and

· R$ 2.0 million increase in interest and charges on international loans and financing, especially due to the total debt increase, resulting from new funding .

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Comments on the Company’s Performance Version: 1

7.1.2. Financial revenues

Financial revenues increased R$ 16.6 million, due to interest mainly over instalment agreement in 2Q15.

| 7.2. Monetary and exchange rate variation
on assets and liabilities | 2Q15 | 2Q14 | Chg. | R$ million — % |
| --- | --- | --- | --- | --- |
| Currency exchange variation on
loans and financing | 208.9 | 84.2 | 124.7 | 148.1 |
| Monetary variation on
loans and financing | (41.6) | (28.9) | (12.7) | 43.9 |
| Other monetary variations | 17.8 | (13.1) | 30.9 | (235.9) |
| Monetary/exchange rate variation
on liabilities | 185.1 | 42.2 | 142.9 | 338.6 |
| Monetary/exchange rate variation on assets | 34.8 | 10.6 | 24.2 | 228.3 |
| Monetary/exchange rate variation, net | 219.9 | 52.8 | 167.1 | 316.5 |

7.2.1. Monetary/exchange rate variation on liabilities

The effect on the monetary/currency exchange variation on liabilities in 2Q15 was R$ 142.9 million, higher than in 2Q14, especially due to:

· An increase of R$ 124.7 million in expenses with exchange rate change on loans and financing, due to a higher depreciation of the US dollar and the Yen versus the Brazilian Real in 2Q15 (3.3% and 5.0%, respectively), when compared to the depreciation recorded in 2Q14 (2.7% and 1.0%, respectively);

· R$ 30.9 million decrease in other monetary variation expenses, chiefly due to the reversion of R$ 25.6 million regarding provision for lawsuits in 2T15; and

· An upturn of R$ 12.7 million in expenses with monetary variation on loans and financing, due to the increase in the IPCA in 2Q15 compared to 2Q14 (2.26% and 1.54%, respectively).

7.2.2. Monetary/Exchange rate variation on assets

R$ 24.2 million increase, mainly due to the monetary updates on judicial deposits .

8. Income tax and social contribution

Recorded an R$ 182.0 million upturn, due to the increase in taxable income in 2Q15 and to the impacts of deferred income tax and social contribution, versus 2Q14.

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Comments on the Company’s Performance Version: 1

9. Indicators

9.1. Operating

As a result of the water crisis, there was a substantial reduction in the water production volume, down by 14.6% in the quarter and 18.1% in the semester.

There was also a substantial decline in the index that measures water losses per connection per day (IPDT) which came to 272 liters/connection x day versus 356 liters/connection x day on the same period last year.

This reduction was the result not only of loss control initiatives, but also of the water crisis and the consequent need to reduce the network pressure as a demand management mechanism.

Operating indicators * 2Q15 2Q14 %
Water connections ( 1 ) 8,310 8,100 2.6
Sewage connections ( 1 ) 6,753 6,542 3.2
Population directly served - water ( 2 ) 25.4 25.1 1.2
Population directly served - sewage ( 2 ) 22.6 22.1 2.3
Number of employees 14,147 14,799 (4.4)
Water volume produced - quarter ( 3 ) 606 710 (14.6)
Water volume produced - semester ( 3 ) 1,219 1,488 (18.1)
IPM - Measured water loss (%) 28.5 30.8 (7.5)
IPDt (liters/connection x day) 272 356 (23.6)

(1) Total connections, active and inactive, in thousand units at the end of the period

(2) In million inhabitants, at the end of the period. Not including wholesale

(3) In millions of cubic meters

(*) Unaudited

9.2. Financial — Economic Indexes * (quarter end) 2Q15 2Q14
Amplified Consumer Price Index (IPCA) - % 2.26 1.54
Referential Rate (TR) - % 0.40 0.15
Interbank Deposit Certificate (CDI) - % 13.64 10.80
US DOLAR (R$) 3.1026 2.2025
YEN (R$) 0.02541 0.0218
(*)
Unaudited

10. Loans and financing

On June 24, 2015, the Company fully redeemed the 16 th debenture issue, totaling R$ 500 million. No premium was paid.

11. Capex

In the second quarter of 2015, R$ 969.6 million were invested, totaling R$ 1.5 billion investments in the first six months of 2015.

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

1 Operations

Companhia de Saneamento Básico do Estado de São Paulo ("SABESP" or the "Company") is a mixed-capital company headquartered in São Paulo, at Rua Costa Carvalho, 300, CEP 05429-900, controlled by the São Paulo State Government. The Company is engaged in the provision of basic and environmental sanitation services in the State of São Paulo, as well as it supplies treated water and sewage services on a wholesale basis.

In addition to providing basic sanitation services in the State of São Paulo, SABESP may perform these activities in other states and countries, and can operate in drainage, urban cleaning, solid waste handling and energy markets. The objective set in the new vision of SABESP is to be recognized as the company that ensured universal access to water and sewage services in its marketplace, in a sustainable and competitive manner, with excellence in customer service.

On June 30, 2015, the Company operated water and sewage services in 364 municipalities of the State of São Paulo. Most of these municipalities operations are based on 30-year concession, program and services contracts. The Company has two partial contracts with the municipality of Mogi das Cruzes, however, since most of municipality is serviced by wholesale, it was not included in the 364 municipalities. On June 30, 2015, the Company had 366 contracts.

SABESP is not temporarily operating in some municipalities due to judicial orders. The lawsuits in progress refer to Álvares Florence, Cajobi, Embaúba, Iperó and Macatuba, and the carrying amount of these municipalities' intangible assets was R$11,328 on June 30, 2015 (R$11,328 on December 31, 2014).

As of June 30, 2015, 53 concession agreements had expired and are being negotiated. From June 30, 2015 to 2030, 37 concession agreements will expire. Management believes that concession agreements expired and not yet renewed will result in new contracts, disregarding the risk of discontinuity in the provision of municipal water supply and sewage services. By June 30, 2015, 276 program and services contracts were signed (274 contracts on December 31, 2014).

As of June 30, 2015, the carrying amount of the underlying assets used in the 53 concessions of the municipalities under negotiation totaled R$6,195,595, accounting for 22.91% of the total, and the related gross revenue for the six-month period then ended totaled R$920,940, accounting for 16.61% of the total.

The Company's operations are concentrated in the municipality of São Paulo, which represents 49.15% of the gross revenues on June 30, 2015 (49.79% on June 30, 2014) and 42.42% of intangible assets (42.29% on December 31, 2014).

On June 23, 2010, the State of São Paulo, the Municipality of São Paulo, the Company and the regulatory agency “Sanitation and Energy Regulatory Agency – ARSESP” signed an agreement to share the responsibility for water supply and sewage services to the Municipality of São Paulo based on a 30-year concession agreement. This agreement is extendable for another 30 years, pursuant to the law. This agreement sets forth SABESP as the exclusive service provider and designates ARSESP as regulator, establishing prices, controlling and monitoring services.

Also, on June 23, 2010, the State of São Paulo, the city of São Paulo and SABESP signed the “Public service provision agreement of water supply and sewage services”, a 30-year concession agreement which is extendable for another 30 years. This agreement involves the following activities:

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

i. protection of the sources of water in collaboration with other agencies of the State and the City ;

ii. capture, transport and treat of water ;

iii. collect, transport, treatment and final dispose of sanitary sewage; and

iv. adoption of other actions of basic and environmental sanitation .

In the municipality of Santos, in the Santos coast region, which has a significant population, the Company operates under an authorization by public deed, a situation similar to other municipalities in that region and in the Ribeira valley, where the Company started to operate after the merger of the companies that formed it. As of June 30, 2015, the carrying amount of the municipality of Santos’ intangible assets was R$362,367 (R$205,261 on December 31, 2014) and gross revenue in the six-month period ended June 30, 2015 was R$132,720 (R$117,885 on June 30, 2014) .

Article 58 of Law 11,445/07 determines that precarious and overdue concessions, as well as those effective for an undetermined period of time, including those that do not have an instrument formalizing them, will be valid until December 31, 2010. However, Article 2 of Law 12,693 of July 24, 2012 allows program agreements to be executed until December 31, 2016 .

The Company’s Management understands that the concession agreements not yet renewed are valid and will be governed by Laws 8,987/95 and 11,445/07, including those municipalities served without an agreement .

Public deeds are valid and governed by the Brazilian Civil Code .

The Company's shares have been listed in the Novo Mercado (New Market) segment of BM&FBovespa under the ticker symbol SBSP3 since April 2002 and on the New York Stock Exchange (NYSE) as American Depositary Receipts (“ADRs”) Level III, under the SBS code, since May 2002. In 2007, SABESP adhered to the Corporate Sustainability Index, or ISE of BM&FBovespa, which reflects the high level of commitment with sustainable development and social practices .

Since 2008, the Company has been setting up partnerships with other companies, which resulted in the following companies: Sesamm, Águas de Andradina, Saneaqua Mairinque, Aquapolo Ambiental, Águas de Castilho, Attend Ambiental and Paulista Geradora de Energia. Although SABESP has no majority interest in the capital stock of these companies, the shareholders’ agreements provide for the power of veto and casting vote in certain issues jointly with associates, indicating the shared control in the management of investees .

Water shortage – the Company’s operations have been influenced by the lowest rainfall and inflow never seen in 85 years, especially at the reservoirs composing the Cantareira System which, under usual conditions, is in charge for direct supply of approximately 8.8 million people. During the rainy season, from October 2014 to January 2015, rainfall remained below average, despite above average from February to March 2015. The expectation was that the water volume stored at the Cantareira System would recover, however, as the levels were already low due to the lack of rainfall during Summer in 2013 and 2014, rainfall index in the region, during the rainy season from October 2014 to March 2015, was not sufficient to recover the reservoirs, whose levels are below than the one seen in the historical series. To face this situation and ensure that the water supply is not interrupted, the Company has been adopting several measures, such as :

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

· Using pumps to remove water below the catchment level of the Cantareira System, the so-called “technical reserve”, which had never been used before to supply the population ;

· Offering discounts (bonus) to consumers, whose volume consumed is below the average stipulated ;

· Using water from other producing systems to serve consumers previously supplied by the Cantareira System;

· Intensifying the advertising campaigns towards the rational use of water ;

· Reducing pressure in the distribution network, in order to prevent water losses;

· Reducing the water volume sold to municipalities which operate their own distribution networks;

· Making investments earlier than the planned time to expand water safety; and

· Implementing the contingency tariff for consumers whose volume consumed is above the average stipulated .

The water reservation volume at the reservoirs relies on several factors, such as levels of rain, temperature and atmospheric humidity, as well as the type and humidity of soil in water sources regions.

This scenario of water shortage also had adverse financial effects for the Company. As a result, since 2014 up to date, the Company has taken decisions to minimize these effects, including :

• Rearrangement of investments,

• Expense budget reduction,

• Negotiation of overdue receivables (the Company sent a list of 22 municipalities with unpaid water bills to the State CADIN, including those municipalities served by wholesale);

• Contracting guarantee insurance for escrow deposits; and

• Application of the extraordinary tariff revision since June 2015.

The Company’s Management expects that the operating cash generation estimated for 2015 and the lines of credit available for investments will be sufficient to meet its short-term liabilities and not compromise the actions required to overcome the water shortage, thus preserving its consumers’ supply .

The interim financial information was approved by the Board of Directors on August 13, 2015 .

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

2 Basis of preparation and presentation of the financial statements

(i) Presentation of the quarterly financial information

The quarterly financial information as of June 30, 2015, was prepared based on the provisions of CPC 21 (R1) – Interim Financial Information and the international standard IAS 34 – Interim Financial Reporting, issued by the International Accounting Standards Board (IASB), applicable to the preparation of Quarterly Information Form– ITR and they are fairly presented consistent with the rules issued by the Brazilian Securities and Exchange Commission (CVM). Therefore, this Interim Financial Information takes into consideration the official letter CVM/SNC/SEP 003 of April 28, 2011, which allows the entities to present selected notes to the financial statements, in cases of redundant information already disclosed in the Annual Financial Statements. The interim financial information for June 30, 2015, therefore, does not include all the notes and reporting required by the annual financial statements, and accordingly, shall be read jointly with the financial statements as of December 31, 2014, prepared pursuant to the International Financial Reporting Standards – IFRS, issued by the International Accounting Standards Board – IASB and pursuant to the accounting practices adopted in Brazil which observe the pronouncements issued by the Brazilian Accounting Pronouncements Committee- CPC .

3 Accounting policies

The accounting policies used in the preparation of the quarterly financial information for the quarter ended June 30, 2015 are consistent with those used to prepare the Annual Financial Statements for the year ended December 31, 2014. These policies are disclosed in Note 3 to the Annual Financial Statements .

4 Risk Management

4.1 Financial Risk Management

Financial risk factors

The Company's activities are affected by Brazilian economic scenario, making it exposed to market risk (exchange rate and interest rate), credit risk and liquidity risk. The Company’s financial risk management is focused on the unpredictability of financial markets and seeks to minimize potential adverse effects on the Company’s financial performance.

The Company has not utilized derivative instruments in any of the reported periods.

(a) Market risk

Foreign currency risk

SABESP’s foreign exchange exposure implies market risks associated with currency fluctuations, since the Company has foreign currency-denominated liabilities, mainly US dollar and yen-denominated short and long-term loans.

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

The management of SABESP’s foreign currency exposure considers several current and projected economic factors, besides market conditions .

This risk arises from the possibility that the Company may incur in losses due to exchange rate fluctuations that would impact liability balances of foreign currency-denominated loans and financing raised in the market and related financial expenses. The Company does not maintain hedge or swap contracts or any derivative financial instrument to hedge against this risk, but conducts an active management of debt, taking advantage of opportunities to change expensive debts with “cheaper” debts, reducing the cost through early maturity .

A significant amount of the Company’s financial debt is indexed to the U.S. dollar and Yen, in the total amount of R$5,140,060 on June 30, 2015 (R$4,363,898 on December 31, 2014). Below, the Company’s exposure to foreign exchange risk :

June 30, 2015 — Foreign currency R$ December 31, 2014 — Foreign currency R$
Loans and financing– US$ 1,222,531 3,793,025 1,231,188 3,270,282
Loans and financing – Yen 51,854,547 1,317,624 48,066,910 1,068,527
Interest and charges from loans and financing – US$ 20,246 17,703
Interest and charges from loans and financing– Yen 9,165 7,386
Total exposure 5,140,060 4,363,898
Financing cost (18,067) (17,606)
Total loans in foreign currency (Note 15) 5,121,993 4,346,292

The 18% increase in foreign currency-denominated debt from December 31, 2014 to June 30, 2015 was mainly due to the following :

1) Exchange rate changes, since the US dollar appreciated 16.8% from R$2.6562 on December 31, 2014 to R$3.1026 on June 30, 2015. The US dollar-denominated debt accounts for 74% of foreign currency-denominated debts; and

2) An 8% increase in Yen-denominated debt and 14% increase in the Yen .

On June 30, 2015, if the Brazilian real had depreciated or appreciated by 10% against the US dollar and Yen with all other variables held constant, effects on results before taxes on the six-month period ended June 30, 2015 would have been R$514,006 (R$436,390 on December 31, 2014), lower or higher, mainly as a result of foreign exchange losses or gains on the translation of foreign currency-denominated loans .

Scenario I below presents the effect in income statements for the next 12 months, considering the projected rates of the U.S. dollar and the Yen. Considering the other variables as remaining constant, the impacts for the next 12 months are shown in scenarios II and III with possible depreciations of 25% and 50%, respectively, in the Brazilian real .

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

Scenario I (Probable ) Scenario II (+25 %) Scenario III (+50%)
(*)
Net currency exposure on June 30, 2015 (Liabilities) in US$ 1,222,531 1,222,531 1,222,531
US$ rate on June 30, 2015 3.1026 3.1026 3.1026
Exchange rate estimated according to the scenario 3.3700 4.2125 5.0550
Difference between the rates (0.2674) (1.1099) (1.9524)
Effect on net financial result in R$-- (loss) (326,905) (1,356,887) (2,386,870)
Net currency exposure on June 30, 2015 (Liabilities) in Yen 51,854,547 51,854,547 51,854,547
Yen rate on June 30, 2015 0.02541 0.02541 0.02541
Exchange rate estimated according to the scenario 0.02691 0.03363 0.04036
Difference between the rates (0.00150) (0.00822) (0.01495)
Effect on net financial result in R$ - (loss) (77,782) (426,244) (775,225)
Total effect on net financial result in R$- (loss) (404,687) (1,783,131) (3,162,095)
(*)The probable scenario in foreign currency (US dollar and Yen) considered the average exchange rate for the 12-month period after June 30, 2015, according to BM&FBovespa.

Interest rate risk

This risk arises from the possibility that the Company could incur losses due to fluctuations in interest rates, increasing the financial expenses related to loans and financing .

The Company has not entered into any derivative contract to hedge against this risk; however continually monitors market interest rates, in order to evaluate the possible need to replace its debt .

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

The table below provides the Company's loans and financing subject to variable interest rate:

June 30, 2015 December 31, 2014
TR (i) 1,632,987 1,578,250
CDI (ii) 1,117,191 1,712,010
TJLP (iii) 1,064,772 1,059,074
IPCA (iv) 1,572,117 1,492,320
LIBOR (v) 2,259,826 1,953,989
Interest and charges 96,630 133,776
Total 7,743,523 7,929,419

(i) TR – Interest Benchmark Rate

(ii) CDI - (Certificado de Depósito Interbancário), an interbank deposit certificate

(iii) TJLP - (Taxa de Juros a Longo Prazo), a long-term interest rate index

(iv) IPCA - (Índice Nacional de Preços ao Consumidor Amplo), a consumer price index

(v) LIBOR - London Interbank Offered Rate

As of June 30, 2015, if interest rates on loans and financing denominated in Brazilian reais had been 1% higher or lower with all other variables held constant, the effects on profit for the six-month period ended June 30, 2015, before taxes would have been R$77,435 (R$79,294 on December 31, 2014) lower or higher .

Another risk to which the Company is exposed, is the mismatch of the monetary restatement indices of its debts with those of its service revenues. Water supply and sewage services tariff adjustments do not necessarily follow the increases in the inflation indexes to adjust loans, financing and interest rates affecting the Company's indebtedness.

(b) Credit risk

Credit risk arises from cash and cash equivalents, deposits in banks and financial institutions, as well as credit exposures to wholesale basis and retail customers, including outstanding accounts receivable, restricted cash and accounts receivable from related parties. Credit risk exposure to customers is mitigated by sales to a dispersed base.

The maximum exposures to credit risk on June 30, 2015 are the carrying amounts of instruments classified as cash equivalents, deposits in banks and financial institutions, restricted cash, trade accounts receivable and accounts receivable from related parties. See additional information in Notes 6, 7, 8 and 9 .

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Regarding the financial assets held with financial institutions, the credit quality that is not past due or subject to provision for impairment can be assessed by reference to external credit ratings (if available) or to historical information about counterparty default rates. The credit quality of counterparties which are banks, such as deposits and financial investments, the Company considers the lower rating of the counterparty published by three main international rating agencies (Fitch, Moody's and S&P), according to internal policy of market risk management :

June 30, 2015 December 31, 2014
Cash at bank and short-term bank deposits
AAA(bra) 802,414 1,722,347
Other (*) 617 644
803,031 1,722,991

(*) This category includes current accounts and investment funds in banks, which have no credit rating information available .

The available credit rating information of the banks in which the Company made transactions during the period is as follows :

Banks Fitch Moody's Standard Poor's
Banco do Brasil S.A. AAA (bra) Aaa.br -
Banco Santander Brasil S.A. AAA (bra) Aaa.br brAAA
Brazilian Federal Savings Bank AAA (bra) Aaa.br brAAA
Banco Bradesco S.A. AAA (bra) Aaa.br brAAA
Itaú Unibanco Holding S.A. AAA (bra) Aaa.br brAAA

(c) Liquidity risk

The Company's liquidity is primarily reliant upon cash provided by operating activities, loans from Brazilian Federal and State governmental financial institutions, and financing in the domestic and international capital markets. The liquidity risk management considers the assessment of its liquidity requirements to ensure it has sufficient cash to meet its Capex and operating expenses needs, as well as the payment of debts.

The funds held by the Company are invested in interest-bearing current accounts, time deposits and securities, selecting instruments with appropriate maturity or liquidity sufficient to provide margin as determined by projections mentioned above.

The table below shows the financial liabilities of the Company, into relevant maturities, including the installment of principal and future interest to be paid according to the agreement .

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

July to December 2015 2016 2017 2018 2019 2020 onwards Total
As of June 30, 2015
Liabilities
Loans and financing 508,194 1,780,852 1,860,473 1,421,382 1,475,028 7,878,918 14,924,847
Accounts payable to suppliers and contractors 254,389 - - - - - 254,389
Services payable 302,680 - - - - - 302,680
Public-private partnership – PPP (*) 23,019 46,038 46,038 285,104 285,104 4,658,234 5,343,537
Program contract commitments 180,788 52,583 11,082 622 832 17,185 263,092

(*) The Company also considered future commitments (construction not yet performed) not yet recognized in the financial statements related to São Lourenço PPP, due to the relevance of future cash flows, the impacts on its operations and the fact the Company already has formalized this commitment through an agreement signed by the parties .

Future interest

Future interest was calculated based on the contractual clauses for all agreements. For agreements with floating interest rate, the interest rates used correspond to the base dates above.

Cross default

The Company has loan and financing agreements including cross default clauses, i.e., the early maturity of any debt may imply the early maturity of these agreements. The indicators are continuously monitored in order to avoid the execution of this clause .

(d) Other price risks

The Company is exposed to the price risk of investment in equity instruments of Companhia de Transmissão de Energia Elétrica Paulista – CTEEP, solely held for trading purposes in the short term.

Sensitivity analysis of equity instruments price

The sensitivity analysis was determined based on the exposure to the equity instruments price at the end of the reporting period.

If the equity instrument price were 10% lower, the profit for the quarter ended June 30, 2015 would decrease by R$5,737, net of taxes.

(e) Sensitivity analysis on interest rate risk

The table below shows the sensitivity analysis of the financial instruments, prepared in accordance with CVM Rule 475/2008 in order to evidence the balances of main financial assets and liabilities, calculated at a rate projected until the final settlement of each contract, considering a probable scenario (scenario I), appreciation of 25% (scenario II) and 50% (scenario III).

The purpose of the sensitivity analysis is to measure the impact of changes in the market over the financial instruments of the Company, considering constant all other variables. In the time of settlement, the amounts can be different from those presented above, due to the estimates used in the measurement.

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

June 30, 2015 — Indicators Exposure Scenario I (Probable) (i) Scenario II 25% Scenario III 50%
Assets
CDI 740,479 13.2100%(*) 16.5125%(***) 19.8150%
Financial income 97,817 122,272 146,726
Liabilities
CDI (1,117,191) 13.2100%(*) 16.5125%(***) 19.8150%
Interest to be incurred (147,581) (184,476) (221,371)
CDI net exposure (376,712) (49,764) (62,204) (74,645)
Liabilities
TR (1,632,987) 0.0198%(*) 0.0248% 0.0297%
Expenses to be incurred (323) (405) (485)
IPCA (1,572,117) 5.5000%(*) 6.8750% 8.2500%
Expenses to be incurred (86,466) (108,083) (129,700)
TJLP (1,064,772) 6.0000%(*) 7.5000% 9.0000%
Interest to be incurred (63,886) (79,858) (95,829)
LIBOR (2,259,826) 0.4913%(**) 0.6141% 0.7369%
Interest to be incurred (11,103) (13,878) (16,653)
Total net expenses to be incurred (211,542) (264,428) (317,312)
(*) Source: Focus Report – BACEN, June 30, 2015
(**) Source: Bloomberg
(***) Scenario with a 25% and 50% increase, as the Company’s net exposure in CDI is negative

(i) Refers to the scenario of interest to be incurred for the 12 months as of June 30, 2015 or until the maturity of the agreements, whichever is shorter .

4.2 Capital management

The Company's objectives when managing capital are ensure its ability to continue as a going concern in order to provide returns for shareholders and benefits for other stakeholders, and to maintain an optimal capital structure to reduce the cost of capital .

The Company monitors capital based on the leverage ratio. This ratio corresponds to net debt divided by total capital. Net debt corresponds to total loans and financing less cash and cash equivalents. Total capital is calculated as total equity as shown in the statement of financial position plus net debt.

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

June 30, 2015 December 31, 2014
Total loans and financing (Note 15) 11,091,435 10,785,767
(-)Cash and cash equivalents (Note 6) (803,031) (1,722,991)
Net debt 10,288,404 9,062,776
Total equity 13,937,894 13,304,403
Total capital 24,226,298 22,367,179
Leverage ratio 42% 41%

The leverage ratio increased from the 41% as of December 31, 2014 to 42% on June 30, 2015, due to the increased in foreign-currency denominated loans and financing as a result of the foreign exchange rate variation in 2015 .

4.3 Fair value estimates

It is assumed that balances from trade accounts receivable (current) and accounts payable to suppliers by carrying amount, less impairment, approximate their fair values, considering the short maturity. Long-term trade accounts receivable also approximate their fair values, as they will be adjusted by inflation and/or will bear contractual interest rates over time.

4.4 Financial Instruments

As of December 31, 2014 the Company had neither financial assets classified as held to maturity, available for sale and fair value through profit or loss nor financial liabilities classified as fair value through profit or loss. In the second quarter of 2015, the Company received CTEEP’s shares, which were classified as financial asset held for trading and are recognized at fair value through profit or loss. This is the only change in financial instruments classifications when compared to the year ended December 31, 2014. The Company’s financial instruments included in the loans and receivables category comprise cash and cash equivalents, trade accounts receivable, balances with related parties, other accounts receivable, balances receivable from the Water National Agency – ANA, and the financial instruments under other liabilities category are comprised of balance payable to contractors and suppliers, loans and financing, balances payable deriving from the Public Private Partnership-PPP and program contract commitments, which are non-derivative financial assets and liabilities with fixed or determinable payments, not quoted in an active market .

The estimated fair values of financial instruments are as follows:

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

Financial assets

June 30, 2015 — Carrying amount Fair value December 31, 2014 — Carrying amount Fair value
Cash and cash equivalents 803,031 803,031 1,722,991 1,722,991
Restricted cash 20,171 20,171 19,750 19,750
Trade accounts receivable 1,310,017 1,310,017 1,224,278 1,224,278
Water National Agency – ANA 127,855 127,855 122,634 122,634
Financial asset held for trading 86,930 86,930 - -
Other accounts receivable 193,611 193,611 187,950 187,950

Additionally, SABESP has financial instrument assets receivable from related parties, in the amount of R$817,674 as of June 30, 2015 (R$223,983 as of December 31, 2014), which were calculated in accordance with the conditions negotiated between related parties. The conditions and additional information referring to these financial instruments are disclosed in Note 9 to this interim financial information and in Note 10 to the annual financial statements as of December 31, 2014. Part of this balance, totaling R$747,111 (R$155,493 on December 31, 2014), refers to reimbursement from additional retirement and pension plan - G0 which is indexed by IPCA plus simple interest of 0.5% p.m. This interest rate approximates that one practiced by federal government bonds (NTN-b) with terms similar to those of related-party transactions.

Financial liabilities

June 30, 2015 — Carrying amount Fair value December 31, 2014 — Carrying amount Fair value
Loans and financing 11,091,435 10,706,227 10,785,767 10,641,611
Accounts payable to suppliers and contractors 254,389 254,389 323,513 323,513
Services payable 302,680 302,680 318,973 318,973
Program contract commitments 243,552 243,552 207,759 207,759
Public-private partnership - PPP 543,355 543,355 368,283 368,283

The criteria adopted to obtain the fair values of loans and financing, in preparing the interim financial information as of June 30, 2015, are consistent with those adopted in the Annual Financial Statements for the fiscal year ended December 31, 2014. In the Annual Financial Statements, these criteria are disclosed in Note 5.4.

Considering the nature of other financial instruments, assets and liabilities of the Company, the balances recognized in the statement of financial position approximate the fair values, taking into account the maturities close to the end of the reporting period, comparison of contractual interest rates with market rates in similar operations at the end of the reporting periods, their nature and maturity terms .

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

5 Critical accounting estimates and judgments

Estimates and judgments are continually evaluated and are based on historical experience and on other factors, including expectations of future events that are believed to be reasonable under the circumstances .

The main accounting estimates and judgments are disclosed in Note 6 to the Annual Financial Statements as of December 31, 2014 .

6 Cash and Cash Equivalents

June 30, 2015 December 31, 2014
Cash and banks 62,552 118,226
Cash equivalents 740,479 1,604,765
803,031 1,722,991

Cash and cash equivalents include cash, bank deposits and high-liquidity short-term financial investments, mainly represented by repurchase agreements (accruing CDI interest rates), deposited at Banco do Brasil, whose original maturities are lower than three months, which are convertible into a cash amount and subject to an insignificant risk of change in value .

The average yield of financial investments corresponds to 99.30% of CDI in June 2015 (99.68% in December 2014) .

7 Restricted cash

June 30, 2015 December 31, 2014
Agreement with the municipal government of São Paulo (i) 9,759 9,176
Funds raised with BNDES (ii) 6,737 6,433
Other 3,675 4,141
20,171 19,750

(i) Agreement with the municipal government of São Paulo where the Company transfers 7.5% of the Municipal revenue to the Municipal Fund ;

(ii) Refers to funds raised with the Brazilian Development Bank– BNDES, awaiting the authorization for use .

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

8 Trade Accounts Receivable

(a)Financial position balances

June 30, 2015 December 31, 2014
Private sector:
General and special customers (i) (ii) 931,132 852,815
Agreements (iii) 293,605 291,367
1,224,737 1,144,182
Government entities:
Municipal 545,361 533,984
Federal 6,665 4,671
Agreements (iii) 189,738 192,253
741,764 730,908
Wholesale customers – Municipal governments: (iv)
Guarulhos 833,103 776,674
Mauá 390,706 366,515
Mogi das Cruzes 2,149 2,092
Santo André 821,936 787,305
São Caetano do Sul 1,871 1,779
Diadema (*) 222,671 224,433
Total wholesale customers – Municipal governments 2,272,436 2,158,798
Unbilled supply 389,549 354,678
Subtotal 4,628,486 4,388,566
Allowance for doubtful accounts (3,318,469) (3,164,288)
Total 1,310,017 1,224,278
Current 1,144,774 1,034,820
Noncurrent 165,243 189,458
1,310,017 1,224,278

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

(*) On March 18, 2014, the State of São Paulo, the municipality of Diadema and SABESP entered into a “Water Supply and Sewage Public Utility Services Agreement” in the municipality of Diadema. Through this contract, the State of São Paulo and the municipality of Diadema have ensured to SABESP (or subsidiary) exclusive rights to render services for a 30-year term .

On this same date, judicial settlements were signed in lawsuits filed by SABESP against the municipality of Diadema and Saned – a municipal company. Through these settlements, SABESP, the municipality of Diadema and Saned agree to suspend the execution of suits to collect receivables related to water supply at wholesale and collection of indemnity debt. The debts will progressively decrease throughout a 30-year period, under the condition that there is a full compliance with the agreements and provision of services contract .

This balance is fully accrued as losses .

Additionally, in compliance with the judicial settlements signed between SABESP and the Municipality of Diadema on March 25, 2015, SABESP and Saned entered into a Share Purchase Agreement with Empresa de Água e Esgoto de Diadema S.A. (“EAED”) – a wholly-owned subsidiary of Saned.

On June 4, 2015, SABESP acquired the total shares of EAED, resulting in the write-off of trade accounts receivable and allowance for doubtful accounts with the municipality of Diadema, totaling R$1,762. Additionally, SABESP’s quarterly information comprises the net balance of assets and liabilities acquired from EAED in the amount of R$975, basically referring to property, plant and equipment, and liabilities related to employees. As these assets have no independent operating activity and were used to settle Diadema’s commitments with the Company, they are not characterized as business acquisition, as per Technical Pronouncement CPC 15 (R1) – Business Combinations, but an extension of services rendered by SABESP, without capacity to generate future economic benefits, decision-making power and operational autonomy, which also does not require the need to apply CPC 36 (R3) Consolidated Financial Statements.

From January to June 2015, there were no relevant changes in relation to the operations presented in the financial statements as of December 31, 2014 .

(i) General customers - residential and small and mid-sized companies

(ii) Special customers - large consumers, commercial, industries, condominiums and special billing consumers (industrial waste, wells , etc. ).

(iii) Agreements - installment payments of past-due receivables, plus monetary restatement and interest.

(iv) Wholesale basis customers - municipal governments - This balance refers to the sale of treated water to municipalities, which are responsible for distributing to, billing and charging final customers. Some of these municipalities are questioning in court the tariffs charged by SABESP , which have full allowance for doubtful accounts. Additionally, t he overdue amounts are included in the allowance for doubtful accounts.

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

Below, the breakdown of trade accounts receivable at wholesale :

Six-month period ended June 30, 2015 Twelve-month period ended December 31 , 2014
Balance at the beginning of the period 2,158,798 1,917,859
Services provided 164,150 375,294
Receipts (50,512) (134,355)
Balance at the end of the period 2,272,436 2,158,798

(b) The aging of trade accounts receivable is as follows:

June 30, 2015 December 31, 2014
Current 1,050,564 992,800
Past-due:
Up to 30 days 161,757 136,666
From 31 to 60 days 78,299 93,534
From 61 to 90 days 66,971 62,276
From 91 to 120 days 66,937 54,725
From 121 to 180 days 92,454 96,079
From 181 to 360 days 206,734 202,024
Over 360 days 2,904,770 2,750,462
Total past-due 3,577,922 3,395,766
Total 4,628,486 4,388,566

The increase in the balance overdue is mainly due to accounts receivable at wholesale, where municipalities are challenging in court the tariffs charged by SABESP. These amounts are fully covered by the allowance for doubtful accounts .

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

(c) Allowance for doubtful accounts

June 30, 2015 June 30, 2014
Balance at the beginning of the period 3,164,288 2,856,684
Private sector/government entities 53,643 34,927
Recoveries (18,061) (22,075)
Wholesale customers 117,042 169,228
Additions for the period 152,624 182,080
Write-off in the period referring to the bad debt 1,557 (129)
Balance at the end of the period 3,318,469 3,038,635
Reconciliation of provision for losses of income April to June 2015 January to June 2015 April to June 2014 January to June 2014
Losses (write-off) 26,487 30,147 10,697 20,086
Provision for state entities (related parties) - 2,399 795 795
Provision for private sector/government entities (4,320) 53,643 17,862 34,926
Provision for wholesale supply (18,157) (20,608) 42,596 42,596
Recoveries (3,833) (18,061) (10,315) (22,075)
Amount recorded as selling expenses 177 47,520 61,635 76,328

Wholesale sales losses were recorded as revenue reduction, R$72,486 in the second quarter of 2015 and R$137,650 in the first half of 2015 (R$29,261 in the second quarter of 2014 and R$125,525 in the first half of 2014) .

The Company does not have customers accounting for 10% or more of its revenues .

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

9 Related Party Balances and Transactions

The Company is a party to transactions with its controlling shareholder, the State Government, and companies related to it.

(a) Accounts receivable, interest on shareholders' equity payable, revenue and expenses with the São Paulo State Government

June 30, 2015 December 31, 2014
Accounts receivable
Current:
Water and sewage services 99,138 96,162
Allowance for losses (47,732) (45,333)
Reimbursement for pension benefits (G0):
- Monthly flow 14,122 9,753
- GESP Agreement – 2008 43,722 43,722
“Se Liga na Rede” (Connect to the Network Program) (m) 19,157 17,661
Total current 128,407 121,965
Noncurrent:
Reimbursement for pension benefits (G0):
- GESP Agreement – 2008 80,157 102,018
- GESP Agreement – 2015 (b) 609,110 -
Total noncurrent 689,267 102,018
Total receivables from shareholder 817,674 223,983
Assets:
Water and sewage services 51,406 50,829
Reimbursement of additional retirement and pension benefits (G0) 747,111 155,493
“Se Liga na Rede” (Connect to the Network Program) (m) 19,157 17,661
Total 817,674 223,983
Liabilities:
Interest on shareholders’ equity payable to related parties 126,805 107,784
Others (h) 2,423 1,569

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

April to June 2015 January to June 2015 April to June 2014 January to June 2014
Revenue from water and sewage services
Water supply 47,678 89,907 56,772 116,701
Sewage services 40,407 78,973 50,202 103,268
Payments received from related parties (82,716) (160,502) (113,589) (220,923)
Receipt of GESP reimbursement referring to Law 4819/58 (23,516) (56,716) (28,001) (59,337)

(b) Agreement with the State Government of São Paulo “GESP”

The first 24 installments of the agreement signed on March 18, 2015 were settled by transferring to SABESP 2,221,000 preferred shares issued by Companhia de Transmissão de Energia Elétrica Paulista - CTEEP, totaling R$87,174, based on the share closing price on March 17, 2015 .

On May 12, 2015, the transfer of shares issued by CTEEP to SABESP was concluded in order to settle the first 24 installments of the agreement signed with the State government on March 18, 2015. As of June 30, CTEEP’s shares were recorded under “Financial assets held for trading”, for R$86,930, due to a reduction in its fair value, from thirty-nine reais and twenty-five centavos (R$39.25) on March 18, 2015 to thirty-nine reais and fourteen centavos (R$39.14) on June 30, 2015. The effect of this decrease was recorded under financial expenses and totaled R$244.

On June 8, 2015, SABESP received dividends referring to the 2,221,000 shares, corresponding to R$0.686875 per share, totaling R$1,525.

See additional information in Note 9 (b) to the interim financial information for the first quarter of 2015.

(c) Contingent assets - GESP (not recorded)

SABESP had contingent assets with GESP, not recorded in assets referring to the additional retirement and pension paid (Law 4,819/58), as follows :

June 30, 2015 December 31, 2014
Disputed amounts receivable 815,175 783,422
Undisputed amount referring to the transfer of two reservoirs at Alto Tietê System to SABESP (Note 9 (b)) - 696,283
Total 815,175 1,479,705

(d) U se of reservoirs – EMAE

Empresa Metropolitana de Águas e Energia S.A. - EMAE plans to receive for the credit and to obtain financial compensation for the use of water from the Guarapiranga and Billings reservoirs, which SABESP uses in its operations, as well as the reimbursement of damages related to the failure to pay appropriately .

The Company understands that no amounts are due for the use of these reservoirs given the grants already made. Should these reservoirs not be available for use to the Company, there could be the need to collect water in more distant places. There is a risk of not properly rendering services in the region, besides increasing water supply cost .

Several lawsuits were filed by EMAE. Currently, an arbitration proceeding is in progress related to the Guarapiranga reservoir and a lawsuit related to Billings reservoir, both pleading for financial compensation due to SABESP’s water collect for public supply, alleging that this conduct has been causing permanent and growing loss in the capacity of generating electricity of Henry Borden hydroelectric power plant with financial losses .

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SABESP understands that the expectation for all cases is of possible losses, and for the time being, it is not feasible to estimate the amounts involved, since they were not determined .

On April 10, 2014, we issued a Notice to the Market including the information about any future agreement. However, no adjustment was confirmed and no agreement was executed by either party up to date .

(e) Agreements with reduced tariffs with State and Municipal Government Entities that joined the Water Rational Use Program (PURA)

The Company has signed agreements with government entities related to the State Government and municipalities where it operates that benefit from a reduction of 25% in the tariff of water supply and sewage services when they are not in default. These agreements provide for the implementation of the rational water use program, which takes into consideration the reduction in the water consumption.

(f) Guarantees

The State Government provides guarantees for some loans and financing of the Company and does not charge any fee with respect to such guarantees .

(g) Personnel assignment agreement among entities related to the State Government

The Company has personnel assignment agreements with entities related to the State Government, whose expenses are fully passed on and monetarily reimbursed. From April to June 2015 and 2014, the expenses related to personnel assigned by SABESP to other state government entities amounted to R$2,469 and R$2,571, respectively. From January to June 2015 and 2014, expenses totaled R$5,431 and R$5,065, respectively .

From April to June 2015 and 2014, expenses related to personnel assigned by other entities to SABESP totaled R$179 and R$113, respectively, while from January to June 2015 and 2014 totaled R$231 and R$209, respectively .

(h) Services obtained from state government entities

On June 30, 2015 and December 31, 2014, SABESP had an outstanding amounts payable of R$2,423 and R$1,569, respectively, for services rendered by São Paulo State Government entities .

(i) Non-operating assets

As of June 30, 2015 and December 31, 2014, the Company had an amount of R$969 related to a free land lent to DAEE (Water and Electricity Department) .

(j) Sabesprev

The Company sponsors a private defined benefit pension plan, which is operated and administered by Sabesprev. The net actuarial liability recognized until June 30, 2015 amounted to R$704,413 (R$676,071 on December 31, 2014), as pension plan liabilities, according to Note 19 (b) .

(k) Compensation of Management Key Personnel

Expenses related to the compensation to the members of its Board of Directors, Fiscal Council and Officers amounted to R$975 from April to June 2015 (R$837 from April to June 2014). From January to June 2015, these expenses totaled R$1,952 (R$1,749 from January to June 2014). An additional amount of R$144, related to the Officers’ bonus program, was recorded from April to June 2015 (R$113 from April to June 2014). In the first half of 2015, said bonus amounted to R$285 (R$253 from January to June 2014) .

(l) Loan agreement through credit facility

The Company holds interest in certain Special Purpose Entities (SPEs), not holding the majority interest but with cast vote and power of veto in some issues, with no ability to use such power of veto in a way to affect returns over investments. Therefore, these SPEs are considered for accounting purposes as jointly-owned subsidiaries .

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

The Company entered into a loan agreement through credit facility with the SPEs Aquapolo Ambiental S/A and Attend Ambiental S/A to finance the operations of these companies, until the loans and financing requested with financial institutions is cleared .

The agreements executed with Aquapolo Ambiental S/A, on March 30, 2012 and Attend Ambiental S/A, on May 9, 2014, have the following characteristics :

SPE Principal disbursed amount Interest balance Total Interest rate Maturity
Attend Ambiental 5,400 1,063 6,463 SELIC + 3.5 % p.a. (i)
Aquapolo Ambiental 5,629 3,660 9,289 CDI + 1.2% p.a. 4/30/2016
Aquapolo Ambiental 19,000 11,389 30,389 CDI + 1.2% p.a. 10/30/2015
Total 30,029 16,112 46,141

(i) The loan agreement with SPE Attend Ambiental S/A matures within 180 days, from the date when the respective amount is available in the borrower’s account, renewable for the same period. A portion of the loan has been overdue since May 11, 2015 and is subject to contractual charges (inflation adjustment considering the IGP-M variation, 2% fine and default interest of 1% p.m.). The agreement is being renegotiated between the parties .

The amount disbursed is recognized in current assets under “Other Receivables” and amounts to R$30,029 for principal and R$16,112 for interest. As of June 30, 2015, the balance of principal and interest rates of these agreements is R$46,141 (R$40,366 on December 31, 2014). In the period between January and June 2015, financial income recognized was R$5,775 (R$2,580 from January to June 2014 ).

(m) Se Liga na Rede (Connect to the Network Program)

The State Government enacted the State Law nº 14,687/12, creating the pro-connection program, destined to financially subsidize the execution of household branches necessary to connect to the sewage collecting networks, in low-income households, which agreed to adhere to the program. The program expenditures, except for indirect costs, construction margin and borrowing costs are financed with 80% of funds deriving from the State Government and the remaining 20% invested by SABESP, which is also liable for the execution of works. On June 30, 2015, the program total amount was R$78,127 (R$67,576 on December 31, 2014), R$19,157 (R$17,661 on December 31, 2014) recorded in balances receivable from related parties, the amount of R$33,917 (R$24,862 on December 31, 2014) recorded in the group of intangible assets and R$25,053 (R$25,053 on December 31, 2014) reimbursed by GESP .

10 Water National Agency - ANA

Refers to agreements executed within the scope of the Hydrographic Basin Depollution Program (PRODES), also known as "Treated Sewage Purchase Program ".

This program does not finance works or equipment, remunerates by results achieved, i.e., by effectively treated sewage. In this program, the Water National Agency (ANA) makes available funds, which are restricted to a specific current account and applied in investment funds at the Caixa Econômica Federal - Federal Savings Banks (CEF), until the fulfillment of treated sewage volume is evidenced, as well as, the reduction of polluting cargoes of each agreement .

When resources are made available, liabilities are recorded until funds are released by ANA. After the evidence of targets stipulated in each contract, the revenue deriving from these funds is recognized, but if these targets are not met, funds will return to the National Treasury with the appropriate funds earnings. On June 30, 2015, the balances of assets and liabilities were R$127,855 (R$122,634 on December 31, 2014), and the liabilities are recorded under "Other liabilities" of noncurrent liabilities .

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

11 Investments

The Company holds interest in certain Special Purpose Entities (SPE). Although SABESP has no majority shares of its investees, the shareholders’ agreement provides for the power of veto in certain management issues, with no ability to use such power of veto in a way to affect returns over investments, indicating participating shared control (joint venture – CPC 19 (R2) ).

The Company measures investments under the equity method.

See information on the operations of each investee in Note 12 to the Annual Financial Statements as of December 31, 2014.

Events in the second quarter of 2015:

(a) Paulista Geradora de Energia S/A

On April 13, 2015, the Company acquired shares of Empresa Paulista Geradora de Energia S/A - PGE, jointly with Servtec Investimentos e Participações Ltda ("Servtec”) and Tecniplan Engenharia e Comércio Ltda ("Tecniplan"), with operational purpose is implementation and commercial exploration of water potential in small hydroelectric power plants (PCHs), located at the Guaraú and Vertedouro Cascata Water Treatment Stations.

As of June 30, 2015, the capital stock of Paulista Geradora de Energia totaled R$8,679, and was represented by 8,679,040 registered common shares without a par value. SABESP holds 25% of its equity interest.

As of June 30, 2015, operations had not started yet.

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(b) Summary of financial information on the investees:

Company Equity Accrued Dividends Profit (loss) for the period
June 30, 2015 December 31, 2014 June 30, 2015 June 30, 2015 June 30, 2014
Sesamm 29,806 26,788 (92) 3,110 2,373
Águas de Andradina 5,189 4,582 (228) 835 124
Águas de Castilho 2,966 2,866 (190) 290 360
Saneaqua Mairinque 2,898 2,697 (282) 483 134
Attend Ambiental 1,854 (111) - 1,965 (1,627)
Aquapolo Ambiental 13,297 16,220 - (2,924) (1,278)
Paulista Geradora de Energia 8,603 - - (20) -
Total 64,613 53,042 (792) 3,739 86
Company Investments Distributed dividends Equity in the earnings of subsidiaries Interest percentage
June 30, 2015 December 31, 2014 June 30, 2015 June 30, 2015 June 30, 2014 June 30, 2015 December 31, 2014
Sesamm 10,731 9,644 (33) 1,120 854 36% 36%
Águas de Andradina 1,557 1,375 (69) 251 37 30% 30%
Águas de Castilho 890 860 (57) 87 108 30% 30%
Saneaqua Mairinque 868 809 ( 85) 144 40 30% 30%
Attend Ambiental 834 - - 834 (732) 45% 45%
Aquapolo Ambiental 6,516 7,948 - (1,432) (626) 49% 49%
Paulista Geradora de Energia 2,151 - - (5) - 25% -
Total 23,547 20,636 (244) 999 (319)
Other investments 587 587
Overall total 24,134 21,223

12 Investment properties

On June 30, 2015, the balance of “Investment properties” is R$61,549 (R$54,039 on December 31, 2014). On June 30, 2015 and December 31, 2014, the market value of these properties is approximately R$415,000 and R$350,000, respectively .

December 31, 2014 Transfers Write-offs and disposals Depreciation June 30, 2015
Investment properties 54,039 10,592 (1,320) (1,762) 61,549
Total 54,039 10,592 (1,320) (1,762) 61,549

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

13 Intangible Assets

(a) Balance sheet balances

June 30, 2015 — Cost Accumulated amortization Net December 31, 2014 — Cost Accumulated amortization Net
Intangible right arising from:
Agreements – equity value 8,971,893 (1,644,910) 7,326,983 8,983,492 (1,614,221) 7,369,271
Concession agreements – economic value 1,760,584 (434,412) 1,326,172 1,679,042 (397,782) 1,281,260
Program contracts 7,993,548 (2,118,694) 5,874,854 7,338,985 (1,959,832) 5,379,153
Program contracts– commitments 871,266 (119,570) 751,696 808,662 (105,753) 702,909
Services contracts– São Paulo 13,640,819 (2,169,702) 11,471,117 12,916,939 (1,930,553) 10,986,386
Software licenses 379,518 (87,118) 292,400 326,045 (65,498) 260,547
Total 33,617,628 (6,574,406) 27,043,222 32,053,165 (6,073,639) 25,979,526

(b) Changes

December 31, 2014 Additions Contract renewal Provision for losses Transfers Write-offs and disposals Amortization June 30, 2015
Intangible assets arising from:
Concession agreements – equity value 7,369,271 136,429 (23,680) (5,716) 307 (88) (149,540) 7,326,983
Concession agreements – economic value 1,281,260 81,617 - - 18 (11) (36,712) 1,326,172
Program contracts 5,379,153 513,513 23,680 - 1,130 (138) (42,484) 5,874,854
Program contracts – commitments 702,909 62,605 - - - - (13,818) 751,696
Services contracts – São Paulo 10,986,386 749,330 - 8,648 (16,148) (1,830) (255,269) 11,471,117
Software licenses 260,547 53,471 - - - - (21,618) 292,400
Total 25,979,526 1,596,965 - 2,932 (14,693) (2,067) (519,441) 27,043,222

In the second quarter of 2015, the Company renewed program contracts with the municipalities of Barueri and Mairiporã for a 30-year term.

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(c) Construction services

From April to June 2015 — Water supply Sewage services Total From January to June 2015 — Water supply Sewage services Total
Construction revenue 551,489 353,271 904,760 855,993 637,233 1,493,226
Construction costs incurred 539,777 345,446 885,223 838,373 623,226 1,461,599
Margin 11,712 7,825 19,537 17,620 14,007 31,627
From April to June 2014 — Water supply Sewage services Total From January to June 2014 — Water supply Sewage services Total
Construction revenue 280,864 397,885 678,749 498,964 711,012 1,209,976
Construction costs incurred 275,048 389,169 664,217 489,186 695,503 1,184,689
Margin 5,816 8,716 14,532 9,778 15,509 25,287

(d) General information

During the period ended June 30, 2015 there were no relevant changes in the criteria to account for intangible assets and types of contracts. See further information in Note 14 (d) to the Financial Statements as of December 31, 2014 .

The Company has obligations recorded in “Program Contract– Commitments” in current liabilities in the amount of R$201,762 and R$189,551 on June 30, 2015 and December 31, 2014, respectively, and noncurrent liabilities in the amount of R$41,790 and R$18,208 on June 30, 2015 and December 31, 2014, respectively. The increase in balance results from the signature of new program contracts, as previously disclosed .

(e) Capitalization of interest and other financial charges

From January to June 2015, the Company capitalized interest and inflation adjustment, including related foreign currency exchange effects, in concession intangible assets totaling R$148,021 (R$74,718 from January to June 2014), during the period in which assets were recorded as works in progress .

(f) Construction margin

The Company acts as a primary responsible to construct and install the infrastructure related to the concession, using own efforts or hiring outsourcing services, receiving the risks and benefits .

As a consequence, the Company recognizes revenue from construction service corresponding to the cost of construction increased by margin. Generally, the constructions related to the concessions are performed by third parties, in such case, the margin of the Company is lower, normally, to cover eventual administration costs, and the responsibility of the primary risk. On June 30, 2015 and 2014 the margin was 2.3% .

The construction margin for the second quarter of 2015 and 2014 was R$19,537 and R$14,532, respectively, and for the first half of 2015 and 2014 was R$31,627 and R$25,287, respectively .

(g) Expropriations

As a result of the construction of priority projects related to water and sewage systems, the Company was required to expropriate third-parties' properties, and the owners of these properties will be compensated either amicably or through courts .

The assets received as a result of expropriations are recorded as concession intangible assets. From April to June 2015, the total amount related to expropriations was R$32,079 (R$3,559 from April to June 2014), and from January to June 2015 totaled R$38,841 (R$7,526 from January to June 2014 ).

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(h) Public-Private-Partnership - PPP

Alto Tietê Production System

As of June 30, 2015 and December 31, 2014, the amounts recognized as intangible asset related to PPP were R$398,861 and R$404,447, respectively .

The discount rate of 8.06% p.a. was adopted in the first half of 2015 to calculate this agreement’s present value. The obligations assumed by the Company on June 30, 2015 and December 31, 2014 are shown in the table below.

São Lourenço Production System

As of June 30, 2015 and December 31, 2014, the carrying amounts recorded in the Company’s intangible assets related to this PPP were R$213,448 and R$22,756, respectively.

The obligations assumed by the Company on June 30, 2015 and December 31, 2014 are shown in the table below, and the increase in the balances of liabilities and intangible assets were due to the progress of the works in 2015 .

The following table shows the liabilities balances related to these intangible assets:

June 30, 2015 — Current liabilities Noncurrent liabilities Total liabilities December 31, 2014 — Current liabilities Noncurrent liabilities Total liabilities
Alto Tietê 38,977 295,729 334,706 38,047 307,991 346,038
São Lourenço - 208,649 208,649 - 22,245 22,245
Total 38,977 504,378 543,355 38,047 330,236 368,283

See additional information in Note 14 (h) to the Financial Statements for the fiscal year ended December 31, 2014.

(i) Works in progress

The amount of R$6,023 million is recorded as intangible assets from works in progress on June 30, 2015 (R$5,180 million on December 31, 2014), and on June 30, 2015, most of works are located in the municipalities of São Paulo, Praia Grande and São José dos Campos, totaling R$2,820 million, R$287 million and R$170 million, respectively .

(j) Amortization of intangible assets

The amortization average rate totaled 3.8% and 3.9% on June 30, 2015 and 2014, respectively .

(k) Software license of use

The software license of use is capitalized based on the costs incurred to acquire software and make them ready for use. In the first quarter of 2013, the Company started to implement an integrated business management solution (ERP system), which includes the administrative/financial module and the commercial module. The project is in progress .

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14 Property, Plant and Equipment

(a) Balance sheet balances

June 30, 2015 — Cost Accumulated depreciation Net December 31, 2014 — Cost Accumulated depreciation Net
Land 101,565 - 101,565 100,533 - 100,533
Buildings 79,224 (32,680) 46,544 74,235 (31,720) 42,515
Equipment 303,036 (159,322) 143,714 299,921 (152,999) 146,922
Transportation equipment 13,240 (6,559) 6,681 14,051 (6,438) 7,613
Furniture and fixtures 18,668 (9,887) 8,781 16,556 (9,432) 7,124
Other 428 (279) 149 688 (550) 138
Total 516,161 (208,727) 307,434 505,984 (201,139) 304,845

(b) Changes

December 31, 2014 Additions Transfers Write-offs and disposals Depreciation June 30, 2015
Land 100,533 1,032 - - - 101,565
Buildings 42,515 1,383 3,326 - (680) 46,544
Equipment 146,922 11,732 (333) (95) (14,512) 143,714
Transportation equipment 7,613 135 (547) - (520) 6,681
Furniture and fixtures 7,124 502 1,639 (9) (475) 8,781
Other 138 - 16 - (5) 149
Total 304,845 14,784 4,101 (104) (16,192) 307,434

(c) Depreciation

The Company annually revises the depreciation rates of: buildings - 2%; equipment- 10%; transportation equipment - 10% and furniture, fixture and equipment - 6.7%. Lands are not depreciated .

The depreciation average rate was 11.3% and 11.5%, on June 30, 2015 and 2014, respectively .

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

15 Loans and Financing

Loans and financing outstanding balance — Financial institution June 30, 2015 — Current Noncurrent Total December 31, 2014 — Current Noncurrent Total
Domestic currency
10 th issuance debentures 38,901 179,740 218,641 38,027 187,352 225,379
12 th issuance debentures 45,450 408,415 453,865 45,450 431,174 476,624
14 th issuance debentures 37,850 219,068 256,918 37,038 239,192 276,230
15 th issuance debentures 94,819 702,652 797,471 94,819 761,497 856,316
16 th issuance debentures - - - 498,731 - 498,731
17 th issuance debentures 140,144 968,151 1,108,295 - 1,067,760 1,067,760
18 th issuance debentures - 207,740 207,740 - 202,145 202,145
19 th issuance debentures - 498,183 498,183 - 497,793 497,793
Brazilian Federal Savings Bank 69,444 1,106,801 1,176,245 67,085 1,031,438 1,098,523
Brazilian Development Bank - BNDES BAIXADA SANTISTA 16,309 57,082 73,391 16,309 65,237 81,546
Brazilian Development Bank - BNDES PAC 10,287 71,841 82,128 10,287 76,975 87,262
Brazilian Development Bank - BNDES PAC II 9751 4,249 33,205 37,454 4,068 35,318 39,386
Brazilian Development Bank - BNDES PAC II 9752 2,300 24,725 27,025 1,725 25,875 27,600
Brazilian Development Bank - BNDES ONDA LIMPA 20,783 181,548 202,331 20,183 186,374 206,557
Brazilian Development Bank - BNDES TIETE III 4,951 232,478 237,429 - 187,420 187,420
Leasing 9,707 494,037 503,744 8,997 473,593 482,590
Others 605 1,586 2,191 716 1,886 2,602
Interest and charges 86,391 - 86,391 125,011 - 125,011
Total in domestic currency 582,190 5,387,252 5,969,442 968,446 5,471,029 6,439,475

PAGE: 46 of 76

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

Loans and financing outstanding balance — Financial institution June 30, 2015 — Current Noncurrent Total December 31, 2014 — Current Noncurrent Total
Foreign currency
Inter-American Development Bank - IDB 713 – US$62,744 thousand(US$75,293 thousand in December 2014) 77,867 116,802 194,669 66,664 133,329 199,993
Inter-American Development Bank - IDB 896 – US$4,167 thousand(US$5,555 thousand in December 2014) 8,619 4,309 12,928 7,377 7,378 14,755
Inter-American Development Bank - IDB 1212 – US$107,920 thousand(US$113,059 thousand in December 2014) 31,889 302,943 334,832 27,301 273,007 300,308
Inter-American Development Bank - IDB 2202 – US$381,552 thousand(US$347,190 thousand in December 2014) - 1,175,059 1,175,059 - 914,189 914,189
International Bank for Reconstruction and Development -IBRD – US$45,860 thousand (US$45,860 thousand in December 2014) - 141,929 141,929 - 121,447 121,447
Eurobonds – US$140,000 thousand (US$140,000 thousand in December 2014) - 434,207 434,207 - 371,655 371,655
Eurobonds – US$350,000 thousand (US$350,000 thousand in December 2014) - 1,081,391 1,081,391 - 924,741 924,741
JICA 15 – ¥ 16,710,235 thousand ( ¥ 17,286,450 thousand in December 2014) 29,283 395,324 424,607 25,619 358,659 384,278
JICA 18 – ¥ 15,024,320 thousand ( ¥ 15,542,400 thousand in December 2014) 26,329 355,142 381,471 23,034 322,166 345,200
JICA 17 – ¥ 1,478,814 thousand ( ¥ 1,029,992 thousand in December 2014) - 37,064 37,064 - 22,437 22,437
JICA 19 – ¥ 18,641,178 thousand ( ¥ 14,208,068 thousand in December 2014) - 472,097 472,097 - 314,526 314,526
BID 1983AB – US$130,288 thousand (US$154,231 thousand in December 2014) 74,283 328,045 402,328 63,596 344,078 407,674
Interest and charges 29,411 - 29,411 25,089 - 25,089
Total in foreign currency 277,681 4,844,312 5,121,993 238,680 4,107,612 4,346,292
Total loans and financing 859,871 10,231,564 11,091,435 1,207,126 9,578,641 10,785,767
Current exchange rates on June 30, 2015 were US$3,1026; ¥ 0.025410 (US$2.6562; ¥ 0.022230 on December 31, 2014). On June 30, 2015, the Company did not record balances of loans and financing raised in 2014 to mature within 12 months.

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

Domestic currency Guarantees Maturity Annual interest rates Inflation adjustment
10 th issuance debentures Own funds 2020 TJLP +1.92% (series 1 and 3) and 9.53% (series 2) IPCA (series 2)
12 th issuance debentures Own funds 2025 TR + 9.5%
14 th issuance debentures Own funds 2022 TJLP +1.92% (series 1 and 3) and 9.19% (series 2) IPCA (series 2)
15 th issuance debentures Own funds 2019 CDI + 0.99% (series 1) and 6.2% (series 2) IPCA (series 2)
17 th issuance debentures Own funds 2023 CDI +0.75 (series 1) and 4.5% (series 2) and+4.75% (series 3) IPCA (series 2 and 3)
18 th issuance debentures Own funds 2024 TJLP + 1.92% (series 1 and 3) and 8.25% (series 2) IPCA (series 2)
19 th issuance debentures Own funds 2017 CDI + 0.80% to 1.08%
Brazilian Federal Savings Bank Own funds 2015/2037 5% to 9.5% TR
Brazilian Development Bank - BNDES BAIXADA SANTISTA Own funds 2019 2.5% + TJLP
Brazilian Development Bank - BNDES PAC Own funds 2023 2.15% + TJLP
Brazilian Development Bank - BNDES PAC II 9751 Own funds 2027 1.72%+TJLP
Brazilian Development Bank - BNDES PAC II 9752 Own funds 2027 1.72%+TJLP
Brazilian Development Bank - BNDES ONDA LIMPA Own funds 2025 1.92% + TJLP
Brazilian Development Bank - BNDES TIETE III Own funds 2028 1.66% + TJLP
Leasing 2035 7.73% to 10.12% IPC
Others Own funds 2015/2018 TJLP + 2% (Fehidro) and 12% (Presidente Prudente) TR

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

Foreign currency Guarantees Maturity Annual interest rates Foreign exchange variation
Inter-American Development Bank - IDB 713 – US$62,744 thousand Federal Government 2017 3.27% US$
Inter-American Development Bank - IDB 896- US$4,167 thousand Federal Government 2016 3.00% US$
Inter-American Development Bank - IDB 1212 - US$107,920 thousand Federal Government 2025 2.34% US$
Inter-American Development Bank - IDB 2202 - US$381,552 thousand Federal Government 2035 1.18% US$
International Bank for Reconstruction and Development - IBRD US$45,860 thousand Federal Government 2034 0.53% US$
Eurobonds – US$140,000 thousand - 2016 7.50% US$
Eurobonds – US$350,000 thousand - 2020 6.25% US$
JICA 15 – ¥ 16,710,235 thousand Federal Government 2029 1.8% and 2.5% Yen
JICA 18– ¥ 15,024,320 thousand Federal Government 2029 1.8% and 2.5% Yen
JICA 17– ¥ 1,478,814 thousand Federal Government 2035 1.2% and 0.01% Yen
JICA 19– ¥ 18,641,178 thousand Federal Government 2037 1.7% and 0.01% Yen
BID 1983AB – US$130,288 thousand - 2023 2.49% to 2.99% US$

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

(i) Payment schedule – accounting balances on June 30, 2015

2015 2016 2017 2018 2019 2020 2021 to 2037 Total
In domestic currency
Debentures 61,626 359,517 883,707 595,189 685,744 380,126 575,204 3,541,113
Brazilian Federal Savings Bank 34,098 71,819 76,338 80,610 83,999 87,609 741,772 1,176,245
BNDES 26,964 68,781 73,732 73,732 73,732 56,116 286,701 659,758
Leasing 5,887 19,495 20,568 21,734 23,001 25,091 387,968 503,744
Other 293 642 723 533 - - - 2,191
Interest and other charges 56,991 29,400 - - - - - 86,391
Total in domestic currency 185,859 549,654 1,055,068 771,798 866,476 548,942 1,991,645 5,969,442
In foreign currency
IDB 59,188 118,375 172,062 94,194 94,194 94,194 1,085,281 1,717,488
IBRD - - - - 4,743 9,486 127,700 141,929
Eurobonds - 434,207 - - - 1,081,391 - 1,515,598
JICA 27,806 55,612 56,628 57,643 83,247 83,247 951,056 1,315,239
IDB 1983AB - 74,283 74,283 74,017 54,892 54,168 70,685 402,328
Interests and other charges 29,411 - - - - - - 29,411
Total in foreign currency 116,405 682,477 302,973 225,854 237,076 1,322,486 2,234,722 5,121,993
Overall Total 302,264 1,232,131 1,358,041 997,652 1,103,552 1,871,428 4,226,367 11,091,435

PAGE: 50 of 76

ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

(i) Main events in the semester

(a) 16 th Issue of Debentures

On June 24, 2015, the total early payment of the 16 th issue occurred totaling R$507,674. Contractual maturity was scheduled for November 12, 2015.

(b) Federal Savings Bank (CEF)

Funding in the first six months totaled R$105,452, mainly related to the agreements in progress of the Growth Acceleration Program (PAC).

(c) BNDES

Funding in the first six months totaled R$56,000, referring to agreements 12.2.138.1 (BNDES Tiete III) and 09.2.1535.1 (BNDES Onda Limpa ).

(d) BID

Funding in the first six months totaled R$98,190, referring to agreement 2202 (BID 2202) .

(e) JICA

Funding in the first six months totaled R$130,339, referring to agreements BZ-P17 (JICA 17) and BZ-P19 (JICA 19 ).

(f) Foreign exchange variation

The US dollar exchange rate increased 16.8%, from R$2.6562 on December 31, 2014 to R$3.1026 on June 30, 2015, increasing debt by R$553,189. The Yen exchange rate increased 14.3%, from R$0.02223 on December 31, 2014 to R$0.02541 on June 30, 2015, increasing debt by R$144,912 .

(g) Leasing

On January 15, 2015, the São José dos Campos Sanitary Sewage System started and the corresponding amount on June 30, 2015 is R$97,367 .

(ii) Covenants

As of June 30, 2015, the Company had met the requirements set forth by its loan and financing agreements .

Regarding the agreements with the BNDES, there is a collateral mechanism by which SABESP has assigned a portion of its tariff payment receivables to BNDES. Under this mechanism, from 18 th to the 28 th day of each month SABESP must ensure that a portion of the tariff payments received by it are deposited on a daily basis into a blocked collateral account, before being released to a regular movements account later in the day provided that BNDES has not notified the bank that SABESP is in default. Among the financial ratios set forth in the agreements with the BNDES, there is the adjusted net debt/adjusted Ebitda ratio. If this ratio is at or below 3.00, the amount that must pass through this blocked collateral account will be R$230 million per month; and if the ratio is in the band between 3.00 and 3.80, the amount that must pass through the blocked collateral account will automatically increase by 20%, equivalent to R$276 million per month.

The ratios recorded by the Company were 3.06, 3.09 and 3.17, on June 30, 2015, March 31, 2015 and December 31, 2014, respectively. As a result, since the second quarter of 2015, the monthly guarantee assigned has increased by 20%.

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

Currently, R$226 million are pass through monthly in the blocked collateral account through the above mentioned mechanism. Considering that new loan agreements were signed with the BNDES, where the Company assigned additional guarantees of R$50 million (already included the 20%), total guarantees to pass through to the blocked collateral account will be R$276 million. The Company jointly with the BNDES are formalizing the operation of these guarantees.

For the Company to be in default and accordingly, subject to early maturity, the adjusted net debt/ adjusted Ebitda ratio of the agreements with the BNDES must exceed 3.80 .

(iii) Loans and financing contracted and not yet used

Agent June 30, 2015
(in millions of reais (*))
Brazilian Federal Savings Bank 2,244
Brazilian Development Bank – BNDES 2,621
Inter-American Development Bank – IDB 678
Japan International Cooperation Agency – JICA 500
International Bank for Reconstruction and Development - IBRD 168
Others 72
Total 6,283

(*) Closing quote of 06/30/2015 (US$1.00 = R$3.1026; ¥ 1.00 = R$0.02541) .

For more information on loans and financing, see Note 16 to the Annual Financial Statements as of December 31, 2014.

16 Taxes Payable

(a) Current assets

June 30, 2015 December 31, 2014
Recoverable taxes
Cofins and Pasep - 10,121
Income tax and social contribution 103,919 132,447
Withholding income tax (IRRF) on financial investments 5,850 3,718
Other federal taxes 2,393 2,313
Other municipal taxes 169 169
Total 112,331 148,768

The reduction in recoverable taxes is mainly due to decrease in “Income tax and social contribution” item, which was offset by Pasep and Cofins payable in the period .

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

(b) Current liabilities

June 30, 2015 December 31, 2014
Taxes and contributions payable
Cofins and Pasep 17,345 -
INSS(Social Security contribution) 35,376 33,324
IRRF (withholding income tax) 497 17,377
Other 17,372 23,437
Total 70,590 74,138

17 Deferred Taxes and Contributions

(c) Balance sheet balances

June 30, 2015 December 31, 2014
Deferred income tax assets
Provisions 449,436 524,728
Pension obligations – G0 - 85,271
Pension obligations – G1 238,902 229,266
Donations of underlying assets on concession agreements 47,786 45,742
Allowance for loan losses 219,944 222,587
Tax losses 12,165 -
Other 122,922 112,566
Total deferred tax assets 1,091,155 1,220,160
Deferred income tax liabilities
Temporary difference on concession intangible assets (543,818) (559,411)
Capitalization of borrowing costs (280,563) (253,581)
Profit on supply to governmental entities (82,303) (87,092)
Actuarial gain/loss – G1 Plan (2,514) (2,514)
Other (106,857) (108,084)
Total deferred tax liabilities (1,016,055) (1,010,682)
Deferred tax asset, net 75,100 209,478

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

(b) Changes

Deferred income tax assets December 31, 2014 Net Change June 30, 2015
Provisions 524,728 (75,292) 449,436
Pension obligations – G0 85,271 (85,271) -
Pension obligations – G1 229,266 9,636 238,902
Donations of underlying assets on concession agreements 45,742 2,044 47,786
Credit losses 222,587 (2,643) 219,944
Tax losses - 12,165 12,165
Other 112,566 10,356 122,922
Total 1,220,160 (129,005) 1,091,155
Deferred income tax liabilities
Temporary difference on concession intangible assets (559,411) 15,593 (543,818)
Capitalization of borrowing costs (253,581) (26,982) (280,563)
Profit on supply to governmental entities (87,092) 4,789 (82,303)
Actuarial gain/loss –G1 (2,514) - (2,514)
Other (108,084) 1,227 (106,857)
Total (1,010,682) (5,373) (1,016,055)
Deferred tax asset, net 209,478 (134,378) 75,100
Deferred tax assets December 31, 2013 Net change June 30, 2014
Provisions 506,568 (7,307) 499,261
Pension obligations – G0 85,271 - 85,271
Pension obligations - G1 215,187 7,281 222,468
Donations of underlying assets on concession agreements 43,901 98 43,999
Credit losses 172,482 7,391 179,873
Other 87,266 25,222 112,488
Total 1,110,675 32,685 1,143,360
Deferred tax liabilities
Temporary difference on intangible asset concession (595,285) 15,777 (579,508)
Capitalization of borrowing costs (200,343) (10,120) (210,463)
Profit on supply to governmental entities (81,711) 137 (81,574)
Actuarial gains(losses)– G1 (32,405) - (32,405)
Other (86,901) (9,069) (95,970)
Total (996,645) (3,275) (999,920)
Deferred tax assets, net 114,030 29,410 143,440

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

(c) Reconciliation of the effective tax rate

The amounts recorded as income and social contribution tax expenses in the financial statements are reconciled to the statutory rates, as shown below:

June 30, 2015 June 30, 2014
Profit before income taxes 790,096 1,162,789
Statutory rate 34% 34%
Estimated expenses at statutory rate (268,633) (395,348)
Tax benefit of interest on equity 12,868 27,411
Permanent differences
Provision - Law 4,819/58 (i) (28,800) (25,787)
Donations (2,770) (4,373)
GESP Agreement (Note 9(b)) 151,465 -
Other differences 1,267 15,316
Income tax and social contribution (134,603) (382,781)
Current income tax and social contribution (225) (412,191)
Deferred income tax and social contribution (134,378) 29,410
Effective rate 17% 33%

(i) Permanent difference related to the provision for actuarial liability (Note 19 (b) (iii)) .

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

18 Provisions

(a) Lawsuits with probable likelihood of loss

(I) Financial position balances

The Company is party to a number of claims and legal proceedings arising in the normal course of business, including civil, tax, labor and environmental matters. Management, recognized provisions at an amount considered sufficient to cover probable losses. These provisions, net of escrow deposits are as follows:

Provisions Escrow deposits June 30, 2015 Provisions Escrow deposits December 31, 2014
Customer claims (i) 576,636 (120,630) 456,006 638,637 (114,463) 524,174
Supplier claims (ii) 278,635 (209,145) 69,490 260,854 (195,478) 65,376
Other civil claims (iii) 123,573 (12,030) 111,543 126,403 (9,990) 116,413
Tax claims (iv) 59,395 (649) 58,746 55,554 - 55,554
Labor claims (v) 206,123 (2,576) 203,547 235,466 (2,233) 233,233
Environmental claims (vi) 77,507 (861) 76,646 226,404 (807) 225,597
Total 1,321,869 (345,891) 975,978 1,543,318 (322,971) 1,220,347
Current 597,144 - 597,144 625,092 - 625,092
Noncurrent 724,725 (345,891) 378,834 918,226 (322,971) 595,255

(II) Changes

December 31, 2014 Additional provisions Interest and inflation adjustment Amounts from provision Amounts not used (reversal) June 30, 2015
Customer claims (i) 638,637 16,777 51,678 (35,299) (95,157) 576,636
Supplier claims (ii) 260,854 2,682 19,898 (3,206) (1,593) 278,635
Other civil claims (iii) 126,403 6,722 11,096 (7,350) (13,298) 123,573
Tax claims (iv) 55,554 1,168 4,988 (214) (2,101) 59,395
Labor claims (v) 235,466 23,769 10,043 (13,929) (49,226) 206,123
Environmental claims (vi) 226,404 7,942 9,884 (4,873) (161,850) 77,507
Subtotal 1,543,318 59,060 107,587 (64,871) (323,225) 1,321,869
Escrow deposits (322,971) (15,008) (14,858) 6,555 391 (345,891)
Total 1,220,347 44,052 92,729 (58,316) (322,834) 975,978

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

(b) Explanation on the nature of main classes of lawsuits

(I) Customer claims

Approximately 1,190 lawsuits were filed by commercial customers, which claim that their tariffs should correspond to other consumer categories, and 730 lawsuits which claim a reduction in the sewage tariff due to losses in the system, consequently requesting the refund of amounts charged by the Company and 60 lawsuits where customers plead the reduction in tariff under the category as “Social Welfare Entity”. The Company was granted both favorable and unfavorable final decisions at several court levels and recognized provisions when the chances of losses are probable. The decrease of R$68,168 in the lawsuits classified as probable loss (net of escrow deposits) is mainly related to revisions of expectations caused by favorable decisions to the Company.

(II) Supplier claims

Suppliers’ claims include lawsuits filed by some suppliers alleging underpayment of monetary restatements, withholding of amounts related to the understated inflation rates deriving from Real economic plan, and the economic and financial imbalance of the agreements. These lawsuits are in progress at different courts and a provision is recognized when the chances of losses are probable.

(III) Other civil claims

These mainly refer to indemnities for property damage, pain and suffering, and loss of profits allegedly caused to third parties, filed at different court levels, dully accrued when classified as probable losses.

(IV) Tax claims

Tax claims refers mainly to issues related to tax collections challenged due to differences in the interpretation of legislation by the Company's management, accrued when classified as probable loss.

(V) Labor claims

The Company is a party to labor lawsuits, involving issues such as overtime, shift schedule, health hazard premium and hazardous duty premium, prior notice, change of function, salary equalization, and other. Part of the amount involved is in provisional or final execution at various court levels, and thus is classified as of probable loss and accordingly, accrued. The decrease of R$29,686 in lawsuits with probable chances of losses (net of escrow deposits) is mainly related to reversals of provisions referring to settlements in the Company’s administrative proceedings.

(VI) Environmental claims

Environmental claims refer to several administrative proceedings and lawsuits filed by government entities, including Companhia de Tecnologia de Saneamento Ambiental – Cetesb, Public Prosecution Office of the State of São Paulo and others, that aim affirmative and negative covenants and penalty is estimated due to failure to comply in addition to the imposition of indemnity due to environmental damages allegedly caused by the Company. The amounts accrued represent the best estimate of the Company at this moment, however, may differ from the amount to be disbursed as indemnity to alleged damages, in view of the current stage of referred proceedings. The decrease of R$148,951 in lawsuits with expectation of probable losses (net of escrow deposits) is mainly related to two lawsuits, one due to change in its amount, totaling R$36,501, due to the expectation of settlement with the parties involved and the other one due to provision reversal totaling R$109,841, due to court decision favorable to the Company.

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(c) Lawsuits with possible likelihood of loss

The Company is party to lawsuits and administrative proceedings relating to environmental, tax, civil and labor claims, which are assessed by Management whose chances of loss are possible and are not recorded. Liability contingencies classified as possible loss represent the amount of R$5,058,600 on June 30, 2015 (December/2014 – R$3,779,100). In the first six months of 2015, three new lawsuits were filed totaling R$511,731 related to environmental, labor and tax claims. The amounts considered for reporting purposes are the amounts questioned by adverse parties, which is not possible estimate the amounts involved for the Company, due to the initial phase of lawsuit.

(d) Lawsuits with settlements made in 2015

During the first six months of 2015, the Company made several judicial and administrative settlements, totaling R$194,348. Of this amount, R$189,475 refer to sanitary sewage constructions and R$4,873 refer to environmental compensation, the latter, recorded as “other liabilities”. The accumulated balance on June 30, 2015, referring to these environmental liabilities is R$22,658.

Other information is stated in Note 19 to the Annual Financial Statements as of December 31, 2014.

(e) Guarantee insurance for escrow deposit

During the second quarter of 2015, the Company contracted guarantee insurance for escrow deposit totaling R$500 million. Such insurance will be used in legal claims where instead of immediate cash disbursement by the Company, such insurance is used until the conclusion of these proceedings or up to three-year effectiveness term of the agreement.

As of June 30, 2015, the Company has already used the amount of R$130 million of such insurance in a tax claim deemed as possible loss.

19 Employee Benefits

(a) Health benefit plan

The health benefit plan is managed by Fundação Sabesp de Seguridade Social - SABESPREV and consists of optional, free choice, health plans sponsored by contributions of SABESP and the active participants, as follows :

. Company: 7.7% on average, of gross payroll ;

. Participating employees - 3.21% of base salary and premiums, equivalent to 2.2% of payroll, on average .

(b) Pension plan benefits

Amounts recorded in the statement of financial position
Funded plan – G1
Pension plan liabilities on December 31, 2014 676,071
Expenses recognized in 2015 40,200
Payments made in 2015 (11,858)
Pension plan liabilities on June 30, 2015 (i) 704,413
Unfunded plan – G0
Pension plan liabilities on December 31, 2014 2,053,527
Expenses recognized in 2015 123,930
Payments made in 2015 (70,977)
Pension plan liabilities on June 30, 2015 (iii) 2,106,480
Total 2,810,893

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Notes to the Interim Financial Information Version: 1

(i)Plan G1

The Company sponsors a defined benefit pension plan for its employees ("Plan G1"), which is managed by Sabesprev, receives similar contributions established in a plan of subsidy of actuarial study of SABESPREV, as follows :

· 1.19% of the portion of the salary of participation up to 20 salaries; and

· 10.13% of the surplus, if any, of the portion of the salary of participation over 20 salaries.

As of June 30, 2015, SABESP had a net actuarial liability of R$704,413 (R$676,071 on December 31, 2014) representing the difference between the present value of the Company's defined benefit obligations to the participating employees, retired employees, and pensioners; the fair value of the plan’s assets .

(ii) Private pension plan benefits – Defined contribution

On June 30, 2015, Sabesprev Mais plan, based on defined contribution, had 5,259 active and assisted participants (5,188 in December 2014 ).

With respect to the Sabesprev Mais plan, the contributions from the sponsor represent 100% over the total basic contribution from the participants .

The commitment to all participants who migrated from Plan G1 to the Sabesprev Mais Plan amounted to R$8,347 on June 30, 2015 (R$9,214 on December 31, 2014) referred to active participants .

(iii) Plan G0

Pursuant to Law 4,819/58, employees who started services prior to May 1974 and were retired as an employee of the Company acquired a legal right to receive supplemental pension payments, which rights are referred as "Plan G0". The Company pays these supplemental benefits on behalf of the State Government and makes claims for reimbursements from the State Government, which are recorded as accounts receivable from shareholder, limited to the amounts considered virtually certain that will be reimbursed by the State Government. As of June 30, 2015, the Company recorded a defined benefit obligation for Plan G0 of R$2,106,480 (R$2,053,527 on December 31, 2014).

(c) Profit sharing

The Company recorded as reference to the 2015 Profit Sharing Program, the amount corresponding to one-month salary for each employee, depending on the establishment goals. In the second quarter of 2015, R$20,613 were accrued (R$19,304 in the second quarter of 2014). From January to June 2015 and 2014, R$37,920 and R$36,516, respectively were accrued.

20 Services payable

The services account records the balances payable, mainly from services received from third parties, such as supply of electric power, reading of hydrometers and delivery of water and sewage bills, cleaning, surveillance and security services, collection, legal counsel services, audit, marketing and advertising and consulting services, among others. This account also records the amounts payable from the percentage in the revenues of São Paulo local government. The balances on June 30, 2015 and December 31, 2014 were R$302,680 and R$318,973, respectively .

21 Equity

(a) Authorized capital

The Company is authorized to increase capital by up to R$15,000,000 (R$15,000,000 in December 2014), based on a Board of Directors' resolution, after submission to the Fiscal Council .

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In the event of capital increase, issue of convertible debentures and/or warrants by means of private subscription, shareholders will have preemptive right in the proportion of number of shares held, pursuant to Article 171 of Law 6.404/76 .

(b) Subscribed and paid-in capital

Subscribed and paid-in capital is represented by 683,509,869 registered, book-entry common shares without par value as of June 30, 2015 (683,509,869 on December 31, 2014), held as follows :

June 30, 2015 — Number of shares % December 31, 2014 — Number of shares %
State Department of Finance 343,524,285 50.26% 343,524,285 50.26%
Brazil Clearing and Depository Corporation - CBLC 176,989,242 25.89% 169,000,272 24.73%
The Bank Of New York ADR Department (equivalent in shares) (*) 160,840,202 23.53% 170,351,902 24.92%
Other 2,156,140 0.32% 633,410 0.09%
683,509,869 100.00% 683,509,869 100.00%

(*) Each ADR corresponds to 1 share.

The Annual Shareholders’ Meeting held on April 30, 2015 approved the distribution of dividends as interest on shareholders’ equity amounting to R$252,304 and the transfer to Investments Reserves of retained earnings balances totaling R$605,530 .

The payment of interest on equity in the amount of R$233,807, net of withholding income tax of R$18,497, totaling R$252,304, has started in June 2015 and the amount of R$106,980 was paid to minority shareholders. Additionally, the Company paid R$5 as interest on equity declared in 2013. The balance payable on June 30, 2015, refers mainly to balance payable to controlling shareholder.

Further information about equity, such as shareholder’ compensation, dividends and purpose of reserves, can be found in Note 22 to the Annual Financial Statements as of December 31, 2014 .

22 Earnings per Share Basic and diluted

Basic earnings per share is calculated by dividing the income attributable to the Company’s shareholders by the weighted average number of outstanding common shares during the year. The Company does not have potentially dilutive common shares outstanding or debts convertible into common shares. Accordingly, basic and diluted earnings per share are equal .

January to June 2015 January to June 2014
Income attributable to the Company’s shareholders 655,493 780,008
Weighted average number of common shares issued 683,509,869 683,509,869
Basic and diluted earnings per share (reais per share) 0.95901 1.14118

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23 Business segment information

Management, comprised by the Board of Directors and the Board of Executive Officers, has determined the operating segments used to make strategic decisions, as water supply and sewage services .

April to June 2015 — Water Sewage Reconciliation to the statement of income Balance as per financial statements
Gross operating income 1,150,743 896,499 904,760 2,952,002
Gross sales deductions (72,596) (56,554) - (129,150)
Net operating income 1,078,147 839,945 904,760 2,822,852
Costs, selling, general and administrative expenses (887,117) (577,972) (885,223) (2,350,312)
Income from operations before other operating expenses, net and equity accounting 191,030 261,973 19,537 472,540
Other operating income (expenses), net 11,777
Equity accounting (115)
Financial result, net 155,392
Income from operations before taxes 639,594
Depreciation and amortization 145,753 138,334 - 284,087

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January to June 2015 — Water Sewage Reconciliation to the statement of income Balance as per financial statements
Gross operating income 2,280,371 1,771,363 1,493,226 5,544,960
Gross sales deductions (142,655) (110,812) - (253,467)
Net operating income 2,137,716 1,660,551 1,493,226 5,291,493
Costs, selling, general and administrative expenses (1,387,882) (866,381) (1,461,599) (3,715,862)
Income from operations before other operating expenses, net and equity accounting 749,834 794,170 31,627 1,575,631
Other operating income (expenses), net 43,834
Equity accounting 999
Financial result, net (830,368)
Income from operations before taxes 790,096
Depreciation and amortization 287,277 250,118 - 537,395

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April to June 2014 — Water Sewage Reconciliation to the statement of income Balance as per financial statements
Gross operating income 1,231,368 992,649 678,749 2,902,766
Gross sales deductions (82,335) (66,278) - (148,613)
Net operating income 1,149,033 926,371 678,749 2,754,153
Costs, selling, general and administrative expenses (1,026,630) (624,222) (664,217) (2,315,069)
Income from operations before other operating expenses, net and equity accounting 122,403 302,149 14,532 439,084
Other operating income (expenses), net 5,209
Equity accounting 49
Financial result, net (21,577)
Income from operations before taxes 422,765
Depreciation and amortization 117,456 105,138 - 222,594

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January to June 2014 — Water Sewage Reconciliation to the statement of income Balance as per financial statements
Gross operating income 2,571,445 2,097,003 1,209,976 5,878,424
Gross sales deductions (183,058) (149,283) - (332,341)
Net operating income 2,388,387 1,947,720 1,209,976 5,546,083
Costs, selling, general and administrative expenses (1,956,371) (1,209,997) (1,184,689) (4,351,057)
Income from operations before other operating expenses, net and equity accounting 432,016 737,723 25,287 1,195,026
Other operating income (expenses), net (37,860)
Equity accounting (319)
Financial result, net 5,942
Income from operations before taxes 1,162,789
Depreciation and amortization 262,592 220,260 - 482,852

Explanation on the reconciliation items for the financial statements: the impacts on gross operating income and in costs are as follows :

April to June 2015 January to June 2015 April to June 2014 January to June 2014
Gross revenue from construction recognized under ICPC 1 (R1) (a) 904,760 1,493,226 678,749 1,209,976
Construction costs recognized under ICPC 1 (R1) (a) 885,223 1,461,599 664,217 1,184,689
Construction margin 19,537 31,627 14,532 25,287

(a) Revenue from concession construction contracts is recognized in accordance with CPC 17 (R1), Construction Contracts (IAS 11), using the percentage-of-completion method. See Note 13 (c) and (f ).

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24 Operating Revenue

(a) Revenue from water and sewage services :

April to June 2015 January to June 2015 April to June 2014 January to June 2014
Metropolitan region of São Paulo 1,384,432 2,685,782 1,579,335 3,308,583
Regional Systems (i) 662,810 1,365,952 644,682 1,359,865
Total (ii) 2,047,242 4,051,734 2,224,017 4,668,448

(i) Including the municipalities operated in countryside and at the coast of the State of São Paulo.

(ii) In the second quarter of 2015, t he gross operating revenue from sale of products and services decreased 7.9%, compared to same period of 2014. The decrease is mainly due to reduction in water and sewage billed volume, caused by lower consumption .

In the second quarter of 2015, bonus totaled R$231,009, versus R$88,084 in the second quarter of 2014. In the second quarter of 2015, the billed amounts related to the application of contingency tariff was R$122,974.

On May 5, 2015, ARSESP authorized a cumulative index of 15.2414%, comprised of annual adjustment of 7.1899% (net of the X Factor), plus the remaining portion of 0.5575% referring to the postponed Ordinary Tariff Revision applied on December 27, 2014 and the tariff adjustment of 6.9154% resulting from Sabesp’s Extraordinary Tariff Revision, reflecting in 1.51% in June 2015. In addition, on December 27, 2014, the tariff increased 6.4952%.

Additional information on bonus and the contingency tariff, see Note 24 (a) to the interim financial information for the first quarter of 2015 and Note 25 (a) to the Annual Financial Statements for the year ended December 31, 2014

(b) Reconciliation between gross operating income and net operating income :

April to June 2015 January to June 2015 April to June 2014 January to June 2014
Revenue from water and sewage services 2,047,242 4,051,734 2,224,017 4,668,448
Construction revenue (Note 13 (c)) 904,760 1,493,226 678,749 1,209,976
Sales tax (129,150) (253,467) (148,613) (332,341)
Net revenue 2,822,852 5,291,493 2,754,153 5,546,083

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25 Operating Costs and Expenses

April to June 2015 January to June 2015 April to June 2014 January to June 2014
Operating costs
Salaries and payroll charges 364,193 729,916 388,229 732,528
Pension obligations 14,900 29,421 11,982 23,751
Construction costs (Note 13 (c)) 885,223 1,461,599 664,217 1,184,689
General supplies 41,602 88,780 43,595 88,545
Treatment supplies 63,591 135,910 64,598 134,252
Outsourced services 186,367 390,062 209,742 410,215
Electricity 207,711 366,329 144,133 283,823
General expenses 77,374 162,934 100,409 208,389
Depreciation and amortization 264,448 499,135 203,228 442,658
2,105,409 3,864,086 1,830,133 3,508,850
Selling expenses
Salaries and payroll charges 58,891 115,065 60,628 115,500
Pension obligations 1,931 3,816 1,540 3,093
General supplies 832 1,835 1,071 2,170
Outsourced services 60,307 116,514 65,856 127,985
Electricity 186 355 138 304
General expenses 22,195 41,422 21,795 41,081
Depreciation and amortization 2,452 4,925 2,569 5,368
Allowance for doubtful accounts, net of recoveries (Note 8 (c)) 177 47,520 61,635 76,328
146,971 331,452 215,232 371,829
Administrative expenses
Salaries and payroll charges 42,760 91,151 46,616 88,753
Pension plan 46,144 93,985 42,407 84,515
GESP reimbursement– benefits paid (Note 9 (b)) - (696,283) - -
General supplies 651 1,113 2,291 3,339
Outsourced services 23,358 59,356 75,985 128,043
Electricity 428 710 256 418
General expenses (50,874) (101,259) 67,801 93,204
Depreciation and amortization 17,187 33,335 16,797 34,826
Tax expenses 18,278 38,216 17,551 37,280
97,932 (479,676) 269,704 470,378

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April to June 2015 January to June 2015 April to June 2014 January to June 2014
Operating costs and expenses
Salaries and payroll charges 465,844 936,132 495,473 936,781
Pension plan 62,975 127,222 55,929 111,359
GESP reimbursement– benefits paid (Note 9 (b)) - (696,283) - -
Construction costs (Note 13 (c)) 885,223 1,461,599 664,217 1,184,689
General supplies 43,085 91,728 46,957 94,054
Treatment supplies 63,591 135,910 64,598 134,252
Outsourced services 270,032 565,932 351,583 666,243
Electricity 208,325 367,394 144,527 284,545
General expenses 48,695 103,097 190,005 342,674
Depreciation and amortization 284,087 537,395 222,594 482,852
Tax expenses 18,278 38,216 17,551 37,280
Allowance for doubtful accounts, net of recoveries (Note 8 (c)) 177 47,520 61,635 76,328
2,350,312 3,715,862 2,315,069 4,351,057

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26 Financial Expenses and Income

April to June 2015 January to June 2015 April to June 2014 January to June 2014
Financial expenses
Interest and charges on loans and financing – local currency (81,058) (167,721) (79,962) (162,171)
Interest and charges on loans and financing – foreign currency (25,075) (55,542) (23,098) (47,441)
Other financial expenses (34,020) (56,637) (20,994) (42,025)
Income tax over international remittance (5,025) (8,938) (4,154) (6,739)
Inflation adjustment on loans and financing (i) (41,609) (97,750) (28,932) (61,986)
Inflation adjustment on Sabesprev Mais deficit (496) (928) (345) (684)
Other inflation adjustments (4,636) (9,027) (3,378) (5,869)
Interest and inflation adjustments on provisions (ii) 13,008 12,009 (29,546) (49,492)
Total financial expenses (178,911) (384,534) (190,409) (376,407)
Financial income
Inflation adjustment gains 34,799 65,112 10,894 36,238
Income on short-term investments 47,879 94,911 48,398 96,104
Interest and other income 41,138 67,622 25,583 49,385
Dividends 1,526 1,526 - -
Total financial income 125,342 229,171 84,875 181,727
Financial, net before foreign exchange variations (53,569) (155,363) (105,534) (194,680)
Net foreign exchange gains (losses)
Foreign exchange change on loans and financing (iii) 209,114 (675,304) 84,228 201,264
Other foreign exchange variations (201) (308) (3) (30)
Foreign exchange gains 48 607 (268) (612)
Foreign exchange variations, net 208,961 (675,005) 83,957 200,622
Financial, net 155,392 (830,368) (21,577) 5,942

(i) The monetary variation derives from increase in the indexes defined in the loan agreements, such as, TR and IPCA, which were 0.4% and 2.3%, respectively, in the second quarter of 2015 (0.2% and 1.5%, respectively, in same period of 2014). The exposures to these rates are shown in Note 4.1 (d).

(ii) The variation is mainly due to reversal of inflation adjustment of environmental claims, due to court decision favorable to the Company.

(iii) The variation in foreign exchange expenses mainly derives from depreciation of the US dollar and Yen in the second quarter of 2015, of 3.3% and 5.0%, respectively, compared to depreciation of 2.7% and 1.0%, respectively, in the same period of 2014.

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27 Other operating income (expenses), net

April to June 2015 January to June 2015 April to June 2014 January to June 2014
Other net operating income 35,186 64,469 21,638 38,145
Other operating expenses (23,409) (20,635) (16,429) (76,005)
Other operating income (expenses), net 11,777 43,834 5,209 (37,860)

Other operating income is comprised by sale of property, plant and equipment, sale of contracts awarded in public bids, electricity selling right, indemnities and reimbursement of expenses, fines and collaterals, property leases, reuse water, PURA projects and services .

Other operating expenses consist mainly of write-off of concessions due to obsolescence, discontinued construction works, unproductive wells, projects considered economically unfeasible, losses on property, plant and equipment .

28 Commitments

The Company has agreements to manage and maintain its activities, as well as agreements to build new projects aiming at achieving the objectives proposed in its target plan. Below, main committed amounts as of June 30, 2015 :

June to December 2015 2016 – 2017 2018 – 2019 2020 onwards Total
Contractual obligations- Expenses 587,200 1,147,896 267,666 4,225,624 6,228,386
Contractual obligations- Investments 696,033 2,177,546 149,064 2,186,389 5,209,032
Total 1,283,233 3,325,442 416,730 6,412,013 11,437,418

The main commitment refers to São Lourenço PPP. See Note 13 (h) .

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29 Additional information on cash flows

January to June 2015 January to June 2014
Total additions of intangible assets (Note 13) 1,596,965 1,345,203
Items not affecting cash (see breakdown below) (400,964) (215,081)
Total additions to intangible assets as per statement of cash flows 1,196,001 1,130,122
Investments and financing operations affecting intangible assets but not cash:
Interest capitalized in the period (Note 13 (e)) 148,021 74,718
Contractors payable (54,010) (6,926)
Program contract commitments 62,605 70,251
Public-Private-Partnership (Note 13 (h)) 186,405 -
Leasing 26,316 51,751
Construction margin (Notes 13 (f) and 23) 31,627 25,287
Total 400,964 215,081

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30 Events after the reporting period

· Extraordinary Shareholders’ Meeting

An Extraordinary Shareholders’ Meeting (AGE) was held on July 21, 2015 to re-ratify Management and Fiscal Council members’ overall compensation for the fiscal year of 2015, pursuant to the Management proposal disclosed.

The overall compensation of Management and Fiscal Council members for the fiscal year of 2015 was approved by majority vote, in the maximum amount of four million, five hundred, thirty-six thousand, thirty-four reais and eighty-nine centavos (R$4,536,034.89). Such amount includes a fixed monthly compensation of R$20,590.00 for Officers; R$6,177.00 for members of the Board of Directors and R$4,118.00 for Fiscal Council members and other benefits, besides corresponding charges.

· Water Supply and Sewage Services Agreement

On August 5, 2015, the Company formalized the Water Supply and Sewage Services Agreement with the municipality of Santa Isabel for a 30-year term.

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Comments on the Company’s projections

The projections presented in the reference form are annual and not on a quarterly basis. Therefore, the quarterly comparison between the information disclosed in the reference form with quarterly results shall not apply.

The projections monitoring occurs on an annual basis and are disclosed in the reference form.

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ITR - Quarterly Information Form - 06/30/2015 - CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Other Information Deemed as Relevant by the Company Version: 1

1. CHANGES IN INTEREST HELD BY CONTROLLING SHAREHOLDER, BOARD MEMBERS AND EXECUTIVE OFFICER S

CONSOLIDATED SHAREHOLDING OF CONTROLLING SHAREHOLDERS, MANAGEMENT AND OUTSTANDING SHARES Position as of 06/30/2015 — Shareholder Number of Common Shares (units) % Total Number of Shares (units) %
Controlling shareholder
Treasury Department 343,524,285 50.3% 343,524,285 50.3%
Management
Board of Directors - - - -
Executive Officers - - - -
Fiscal Council 15 - 15 -
Treasury shares - - - -
Other shareholders
Total 343,524,285 50.3% 343,524,285 50.3%
Outstanding shares 339,985,569 49.7% 339,985,569 49.7%

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CONSOLIDATED SHAREHOLDING OF CONTROLLING SHAREHOLDERS, MANAGEMENT AND OUTSTANDING SHARES Position as of 06/30/2014 — Shareholder Number of Common Shares (units) % Total Number of Shares (units) %
Controlling shareholder
Treasury Department 343,524,285 50.3% 343,524,285 50.3%
Management
Board of Directors - - - -
Executive Officers - - - -
Fiscal Council - - - -
Treasury shares - - - -
Other shareholders
Total 343,524,285 50.3% 343,524,285 50.3%
Outstanding shares 339,985,584 49.7% 339,985,584 49.7%

2. SHAREHOLDING POSITION

SHAREHOLDING POSITION OF HOLDERS OF MORE THAN 5% OF EACH TYPE AND CLASS OF COMPANY SHARES, UP TO THE INDIVIDUAL LEVEL — Company: CIA SANEAMENTO BÁSICO ESTADO SÃO PAULO Position as of 06/30/2015 (shares)
Common shares Total
Shareholder Number of shares % Number of shares %
Treasury Department 343,524,285 50.3 343,524,285 50.3

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Reports and Statements / Unqualified Report on Special Review

(Convenience Translation into English from the Original Previously Issued in Portuguese)

REPORT ON REVIEW OF INTERIM FINANCIAL INFORMATION

To the Shareholders, Board of Directors and Management of

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

São Paulo - SP

Introduction

We have reviewed the accompanying interim financial information of Companhia de Saneamento Básico do Estado de São Paulo - SABESP (the “Company”) included in the Quarterly Information Form (ITR), for the quarter ended June 30, 2015, which comprises the financial position as of June 30, 2015 and the related statements of income and comprehensive income for the three and six-month periods then ended and changes in equity and cash flows for the six-month period then ended, including the explanatory notes.

The Company’s Management is responsible for the preparation of the interim financial information in accordance with technical pronouncement CPC 21 (R1) - Interim Financial Information and in accordance with international standard IAS 34 - Interim Financial Reporting , issued by the International Accounting Standards Board (IASB), as well as for the presentation of such information in accordance with the standards issued by the Brazilian Securities and Exchange Commission, applicable to the preparation of Interim Financial Information - ITR. Our responsibility is to express a conclusion on this interim financial information based on our review.

Scope of review

We conducted our review in accordance with Brazilian and international standards on review of interim financial information (NBC TR 2410 and ISRE 2410 - Review of Interim Financial Information Performed by the Independent Auditor of the Entity , respectively). A review of interim financial information consists of making inquiries, primarily of persons responsible for financial and accounting matters, and applying analytical and other review procedures. A review is substantially less in scope than an audit conducted in accordance with standards on auditing and, consequently, does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express an audit opinion.

Conclusion on the interim financial information

Based on our review, nothing has come to our attention that causes us to believe that the accompanying interim financial information included in the ITR referred to above was not prepared, in all material respects, in accordance with CPC 21 (R1) and IAS 34, applicable to the preparation of Interim Financial Information - ITR, and presented in accordance with the standards issued by the Brazilian Securities and Exchange Commission .

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Other matters

Statements of value added

We have also reviewed the statements of value added (DVA) for the six-month period ended June 30, 2015, prepared under the responsibility of the Company’s Management, the presentation of which is required by the standards issued by the CVM - Brazilian Securities and Exchange Commission applicable to the preparation of Interim Financial Information - ITR and considered as supplemental information by IFRSs, which does not require the presentation of DVA. These statements were subject to the same review procedures described above, and, based on our review, nothing has come to our attention that causes us to believe that they were not prepared, in all material respects, consistently with the interim financial information taken as a whole.

The accompanying interim financial information has been translated into English for the convenience of readers outside Brazil.

São Paulo, August 13, 2015

DELOITTE TOUCHE TOHMATSU Délio Rocha Leite
Auditores Independentes Engagement Partner

PAGE: 76 of 76

*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, in the city São Paulo, Brazil.

Date: August 31, 2015

Companhia de Saneamento Básico do Estado de São Paulo - SABESP
By: /s/ Rui de Britto Álvares Affonso
Name: Rui de Britto Álvares Affonso Title: Chief Financial Officer and Investor Relations Officer

FORWARD-LOOKING STATEMENTS

This press release may contain forward-looking statements. These statements are statements that are not historical facts, and are based on management's current view and estimates of future economic circumstances, industry conditions, company performance and financial results. The words "anticipates", "believes", "estimates", "expects", "plans" and similar expressions, as they relate to the company, are intended to identify forward-looking statements. Statements regarding the declaration or payment of dividends, the implementation of principal operating and financing strategies and capital expenditure plans, the direction of future operations and the factors or trends affecting financial condition, liquidity or results of operations are examples of forward-looking statements. Such statements reflect the current views of management and are subject to a number of risks and uncertainties. There is no guarantee that the expected events, trends or results will actually occur. The statements are based on many assumptions and factors, including general economic and market conditions, industry conditions, and operating factors. Any changes in such assumptions or factors could cause actual results to differ materially from current expectations.

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