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Companhia de saneamento Basico Do Estado De Sao Paulo - Sabesp

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FY2007 Annual Report · Companhia de saneamento Basico Do Estado De Sao Paulo - Sabesp
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UNITED STATES  
SECURITIES AND EXCHANGE COMMISSION  
Washington, D.C. 20549 

FORM 20-F 

REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 
1934

OR

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE 
FISCAL YEAR ENDED DECEMBER 31, 2007

OR

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ______ or ______
OR

SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of event requiring this shell company report ______

Commission file number 001-31317
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 São Paulo-SABESP
(Translation of the Registrant’s name into English)
Federative Republic of Brazil
(Jurisdiction of incorporation or organization)
Rua Costa Carvalho, 300
05429-900 São Paulo, SP, Brasil
(Address of principal executive offices)

Rui de Britto Álvares Affonso 
raffonso@sabesp.com.br
(+55 11 3388 8247)
Rua Costa Carvalho, 300 05429-900 São Paulo, SP, Brasil

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

Title of each class

Name of each exchange on which registered

Common Shares, without par value 
American Depositary Shares, evidenced by American Depositary 
Receipts, each representing 2 Common Shares(1)
________________________ 
*  Not  for  trading  purposes,  but  only  in  connection  with  the  registration  of  American  Depositary  Shares  pursuant  to  the  requirements  of  the
Securities and Exchange Commission.  

New York Stock Exchange* 
New York Stock Exchange 

(1) Until June 8, 2007, American Depositary Shares, evidenced by American Depositary Receipts, each representing 250 Common Shares.

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

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

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

227,836,623 Common Shares, without par value, as of December 31, 2007 

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to 
Section 13 or 15(d) of the Securities Exchange Act of 1934.

  Yes          

  No 

 Yes           

 No

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities 
Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and 
(2) has been subject to such filing requirements for the past 90 days.

  Yes           

  No 

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

Large acelerated filer   

                   Accelerated filer    

                       Non-accelerated filer    

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

U.S. GAAP

International Financial Reporting Standards as issued by the International 

Other

Accounting Standards Board

If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant 
has elected to follow

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange 
Act).

  Item 17          

  Item 18 

  Yes           

  No 

 
TABLE OF CONTENTS 

Identity of Directors, Senior Management and Advisers 
Offer Statistics and Expected Timetable 
Key Information 
Information on the Company 
Unresolved Staff Comments 
Operating and Financial Review and Prospects
Directors, Senior Management and Employees 
Major Shareholders and Related Party Transactions 
Financial Information 
The Offer and Listing
Additional Information 
Quantitative and Qualitative Disclosures About Market Risk 
Description of Securities Other than Equity Securities 

Presentation of Financial Information 
Forward-Looking Statements Contained in this Annual Report 
PART I  
ITEM 1. 
ITEM 2. 
ITEM 3. 
ITEM 4. 
ITEM 4A. 
ITEM 5. 
ITEM 6. 
ITEM 7. 
ITEM 8. 
ITEM 9. 
ITEM 10. 
ITEM 11. 
ITEM 12. 
PART II  
ITEM 13. 
ITEM 14.  Material Modifications to the Rights of Security Holders and use of Proceeds 
ITEM 15. 
16.A. Audit Committee Financial Expert 
16.B. Code of Ethics 
16.C. Principal Accountant Fees and Services 
16.D. Exemptions from the Listing Standards for Audit Committees 
16.E. Purchases of Equity Securities by Issuer and Affiliated Puchases                   
PART III    
ITEM 17. 
ITEM 18. 
ITEM 19. 
Signatures   
Index to Financial Statements

Financial Statements 
Financial Statements 
Exhibits 

Defaults, Dividend Arrearages and Delinquencies 

Controls and Procedures 

i

2
4
5
5
5
5
21 
56 
57 
82 
89 
95 
104 
109 
123 
125 
125 
125 
125 
125 
128 
129 
129 
129 
129 
130 
130 
130 
130 
132 

 
 
 
 
 
 
 
PRESENTATION OF FINANCIAL INFORMATION 

Table of Contents

In this annual report, references to “real,” “reais” or “R$” are to the Brazilian real, the official currency of Brazil. All references to “U.S. dollars”
or  “US$”  are  to  United  States  dollars.  Solely  for  the  convenience  of  the  reader,  we  have  translated  some  of  the  real amounts  contained  in  this 
annual report into U.S. dollars at a rate equal (unless otherwise indicated) to R$1.7713 to US$1.00, the commercial selling rate as of December 31,
2007 as reported by the Central Bank of Brazil, or the Central Bank. As a result of the recent fluctuations in the real/U.S. dollar exchange rate, the 
commercial  selling  rate  may  not  be  indicative  of  current  or  future  exchange  rates.  Therefore,  you  should  not  read  these  translations  as
representations that any such amounts have been, could have been or could be converted into U.S. dollars at that or at any other exchange rate. See
“Item 3.A. Selected Financial Data—Exchange Rates” for information regarding exchange rates allocable to the Brazilian currency since January
1, 2002.  

Our audited financial statements as of December 31, 2006 and 2007 and for the years ended December 31, 2005, 2006 and 2007 are included in
this annual report. The financial statements as of and for the years ended December 31, 2005, 2006 and 2007 have been audited by Deloitte Touche
Tohmatsu Auditores Independentes, São Paulo, Brazil. The selected financial data as of December 31, 2003 and 2004 is derived from our financial
statements  audited  by  Deloitte  Touche  Tohmatsu  Auditores  Independentes  for  the  year  ended  December  31,  2003  and  2004,  both  included  in
previously filed annual reports. 

Our audited financial statements are presented in reais and are prepared in accordance with the Brazilian Corporate Law Method, which is based on 
Brazilian Corporate Law (Law No. 6,404/76, as amended), the rules and regulations issued by the Brazilian Securities Commission (Comissão de 
Valores  Mobiliários),  or  CVM,  and  the  accounting  standards  issued  by  the  Brazilian  Institute  of  Independent  Auditors  (Instituto  dos  Auditores 
Independentes do Brasil), or IBRACON, hereinafter referred to as the “Brazilian Corporate Law Method.”  

Like other Brazilian companies, we have the option of presenting our primary financial statements on the basis of accounting principles established
in accordance with the Brazilian Corporate Law Method with a reconciliation to generally accepted accounting principles in the United States of
America,  or  U.S.  GAAP.  Unless  otherwise  indicated,  our  financial  statements  and  all  financial  data  included  in  this  annual  report  have  been
prepared in accordance with the Brazilian Corporate Law Method.  

The Brazilian Corporate Law Method differs in significant respects from U.S. GAAP. Note 26 to our financial statements provides a description of
the differences between the Brazilian Corporate Law Method and U.S. GAAP as they relate to our financial statements and a reconciliation from
the Brazilian Corporate Law Method to U.S. GAAP, for periods presented therein, of our net income and shareholders’ equity. The reconciliation 
from the financial statements prepared in accordance with the Brazilian Corporate Law Method to U.S. GAAP includes, among others, adjustments
for differences related to the accounting for past revaluations of property, plant and equipment, historical inflation accounting and accounting for
pension and other employee benefits.  

All information related to liters, water and sewage volumes, number of employees, kilometers, water and sewage connections, population served,
operating productivity, water production rate, sewage lines (in kilometers), savings achieved and investments in improvement programs have not
been audited.

Other Information 

We do not have any subsidiaries.  

In  this  annual  report,  unless  the  context  otherwise  requires,  references  to  “we,”  “us,”  “our,”  “Company,”  or  “Sabesp”  refer  to  Companhia  de 
Saneamento Básico do Estado de São Paulo—Sabesp. “Brazil” refers to the Federative Republic of Brazil and “State” refers to the State of São 
Paulo, which is also our controlling shareholder. The phrases “Federal Government” and “Brazilian government” refer to the federal government of
the Federative Republic of Brazil and “State government” refers to the state government of the State of São Paulo.  

2

Table of Contents

In this annual report, we refer to the “São Paulo Metropolitan Region,” the area where the Metropolitan Executive Office operates, comprising 38
municipalities,  including  the  City  of  São  Paulo.  We  refer  to  the  “Regional  Systems,”  the  area  where  the  Regional  Systems  Executive  Office 
operates,  comprising  328  municipalities  in  the  interior  and  coastline  regions  of  the  State  of  São  Paulo.  As  of  the  date  of  this  annual  report,  we
provide water supply and sewage services to a total of 366 of the 645 municipalities in the State of São Paulo.  

References  to  “Water  Coverage  Ratio”  in  this  annual  report  mean  the  ratio  between  the  number  of  residences  connected  to  the  water  supply
network, divided by the number of urban residences in a certain area. References to “Sewage Coverage Ratio” mean the ratio between the number
of residences connected to the sewage collection network, divided by the number of urban residences in a certain area.  

References to urban and total population in this annual report are estimated based on a research made by State System Foundation Data Analysis
(Fundação  Sistema  Estadual  de  Análise  de  Dados  –  SEADE):  “Projections  for  the  State  of  São  Paulo  –  Population  and  Residences  until 
2025” (“Projeções para o Estado de São Paulo – População e Domicílios até 2025”).  

3

FORWARD-LOOKING STATEMENTS CONTAINED IN THIS ANNUAL REPORT 

This annual report includes forward-looking statements, principally in Items 3 through 5. We have based these forward-looking statements largely 
on our current expectations and projections about future events and financial trends affecting our business. These forward-looking statements are 
subject to risks, uncertainties and assumptions, including, among other things:  

Table of Contents

  general economic, political and other conditions in Brazil and in other emerging market countries;  
  existing and future governmental regulation, including taxes on, and charges to, us;  
  changes to tax laws in Brazil;  
  inflation and currency devaluation in Brazil;  
  the interests of our controlling shareholder, the State of São Paulo;  
  our ability to collect amounts owed to us by our controlling shareholder and by municipalities;  
  our ability to continue to use certain reservoirs within the present terms and conditions;  
  our ability to continue to be able to pass on to our tariffs expenses that we incur in connection with the use of water;  
  our capital expenditure program and other liquidity and capital resources requirements;  
  limitations on our ability to increase and readjust tariffs;  
  droughts, water shortages and climate events;  
  power shortages or rationing in energy supply or significant changes in energy tariffs;  
  our  lack  of  formal  concessions  for  the  City  of  São  Paulo  and  other  municipalities  including  the  cities  comprising  the  São  Paulo

Metropolitan Region;  

  municipalities’ power to terminate our existing concessions;  
  our ability to provide water and sewage services in additional municipalities and to maintain current rights to provide such services;
  the size and growth of our customers’ base;  
  our  ability  to  maintain  universalization  of  Water  Coverage  in  the  municipalities  to  which  we  provide  water  services  and  to  increase 

Sewage Coverage Ratio;  

  our ability to gain access to attractive financing in the future;  
  our level of indebtedness and limitations on our ability to incur additional indebtedness;  
  our costs relating to compliance with environmental laws and potential penalties for failure to comply with these laws;  
  the outcome of our pending or future legal proceedings;  
  our management’s expectations and estimates concerning our future financial performance;  
  the creation of the São Paulo State Sanitation and Energy Regulatory Agency – ARSESP and its impacts;  
  other risk factors as set forth under “Item 3.D. Risk Factors.”

The  words  “believe,”  “may,”  “will,”  “estimate,”  “continue,”  “anticipate,”  “plan,”  “intend,”  “expect”  and  similar  words  are  intended  to  identify 
forward-looking statements. In light of these risks and uncertainties, the forward-looking events and circumstances discussed in this annual report 
might not occur. Our actual results could differ substantially from those anticipated in our forward-looking statements. Forward-looking statements 
speak only as of the date they were made and we do not undertake the obligation to update or revise any forward-looking statements, whether as a 
result of new information, future events or otherwise, unless required by law. Any such forward-looking statements are not guarantees of future 
performance and involve risks. 

4

PART I 

ITEM 1. IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS 

Table of Contents

1.A. Directors and Senior Management 

Not applicable.  

1.B. Advisers 

Not applicable.  

1.C. Auditors 

Not applicable.  

ITEM 2. OFFER STATISTICS AND EXPECTED TIMETABLE

2.A. Offer Statistics 

Not applicable.  

2.B. Method and Expected Timetable 

Not applicable.  

3.A. Selected Financial Data 

ITEM 3. KEY INFORMATION 

The data in this section as of December 31, 2006 and 2007 and for each of the three years ended December 31, 2007 have been derived from our
audited financial statements, which appear elsewhere in this document. The selected financial data as of December 31, 2003, 2004 and 2005, and
for each of the two years ended December 31, 2004 have been derived from our audited financial statements, which do not appear elsewhere in this
document. 

Our financial statements have been prepared in accordance with the Brazilian Corporate Law Method, which differs in significant respects from
U.S. GAAP (see note 26 to our financial statements). You should read this selected financial data in conjunction with our financial statements and
the  related  notes  thereto  included  in  this  annual  report.  Solely  for  the  convenience  of  the  reader,  real  amounts  as  of  and  for  the  year  ended 
December 31, 2007 have been translated into U.S. dollars at the selling rate as of December 31, 2007 of R$1.7713 per US$1.00.  

5

The following table presents our selected financial data as of and for each of the periods indicated.  

As of and for the year ended December 31,

Table of Contents

2003

2004
(in millions, except per share and per ADS data)

2006

2005

2007

Brazilian Corporate Law Method 

Statement of operations data:
   Net revenue from sales and services 
   Cost of sales and services 
   Gross profit 
   Selling expenses 
   Administrative expenses 
   Financial income (expenses), net 
   Income from operations(1)
   Non-operating income (expenses), net 
   Income before taxes on income 
   Income tax and social contribution 
   Extraordinary item, net of income and social 
         contribution taxes(2)
   Net income 

   Net income per 1,000 common shares (per 
         share in 2007)* 
   Net income per ADS 

   Dividends and interest on shareholders’ equity 
         per 1,000 common shares (per share in 
         2007)*

   Number of common shares outstanding at year 
         end (in thousands of shares)(9) * 

Balance sheet data:
   Cash and cash equivalents 
   Customer accounts receivables, net 
   Reimbursement for pension benefits paid 
   Short and long-term receivables from 
     shareholders, net(3)

R$

R$

R$

R$

R$

US$

4,130.8 
(2,067.1)
2,063.6 
(297.5)
(254.1)
(346.5)
1,165.5 
(54.5)
1,111.1 
(242.6)

(35.1)
833.3 

29.26 
7.32 

4,397.1 
(2,253.4)
2,143.7 
(502.5)
(313.6)
(503.7)
823.9 
(33.9)
790.0 
(241.9)

(35.1)
513.0 

18.01 
4.50 

4,953.4 
(2,376.4)
2,577.0 
(537.8)
(349.6)
(447.0)
1,242.6 
(25.4)
1,217.2 
(316.5)

(35.1)
865.6 

30.40 
7.60 

5,527.3  
(2,616.8)
2,910.5  
(719.2) 
(387.4)
(563.3) 
1,240.6  
(50.9) 
1,189.7  
(375.7) 

5,970.8 
(2,695.7)
3,275.1 
(639.6)
(559.2)
(560.9)
1,515.4 
(35.1)
1,480.3 
(431.6)

(35.1) 
778.9  

- 
1,048.7 

27.35  
6.84  

4.60 
9.20 

3,370.9 
(1,521.9)
1,849.0 
(361.1)
(315.7)
(316.7)
855.5 
(19.9)
835.6 
(243.6)

-
592.0 

2.60 
5.20 

17.70 

5.37 

12.23 

9.51  

1.32 

0.75 

28,479,578 

28,479,578 

28,479,578 

28,479,578  

227,836 

227,836 

281.0 
1,056.2 
491.0 

105.6 
1,227.9 
576.3 

280.2 
1,332.5 
672.7 

328.2  
1,407.9  
774.5  

465.0 
1,486.7 
879.1 

262.5 
839.3 
496.3 

164.2 

245.6 

420.4 

456.9  

446.4 

252.0 

*After  June  4,  2007  our  common  shares  have  been  traded  considering  a  reverse  stock  split  of  125  common  shares  into  one  common  share.  To
convert  from  Reais  per  1,000  common  shares  to  Reais  per  share,  for  2003,  2004,  2005  and  2006  the  price  per  1,000  common  shares  must  be
divided by 1,000 and multiplied by 125. 

6

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   Property, plant and equipment, net 
   Concession assets acquired, net 
   Total assets 
   Total short-term loans and financing 
   Total long-term loans and financing 
   Interest on shareholders’ equity 
   Total liabilities 
   Shareholders’ equity 

Other financial information:
   Cash provided by operating activities(4)
   Cash used in investing activities(4)
   Cash used in financing activities(4)
   Adjusted EBITDA(5)
   Capital expenditures(4)
   Depreciation and amortization 

U.S. GAAP 

Statement of operations data:  
   Net revenue from sales and services 
   Gross profit 
   Selling expenses 
   Administrative expenses 
   Income from operations(6)
   Financial income (expenses), net 
   Net income 

   Net income per common shares- basic 
        and diluted  
   Net income per ADS-basic and diluted 
   Weighted average number of common 
        shares outstanding(9)

Balance sheet data:  
   Property, plant and equipment, net 
   Concession assets acquired, net 
   Total assets 
   Short-term loan financing 
   Long-term loan financing 
   Interest on shareholders’ equity 
   Total liabilities 
   Shareholders’ equity 

As of and for the year ended December 31,

Table of Contents

2004
(in millions, except per share and per ADS data)

2005

2006

2007

R$
13,523.5 
517.4 
16,783.8 
1,496.8 
5,553.8 
152.9 
8,832.2 
7,951.6 

1,441.1 
(675.5)
(941.1)
1,926.5 
670.3 
598.9 

R$
13,613.6 
502.5 
17,431.1 
759.0 
5,905.2 
348.2 
8,948.5 
8,482.5 

1,737.6 
(643.2)
(919.7)
2,285.6 
643.1 
596.0 

R$

13,837.5  
495.1  
18,000.0  
852.5  
5,474.3  
270.8  
8,981.5  
9,018.5  

2,020.8  
(850.0) 
(1,122.8) 
2,446.1  
855.1  
642.2  

R$

14,060.1 
507.8 
18,663.4 
742.1 
4,943.1 
300.7 
8,879.4 
9,784.0 

2,215.6 
(881.7)
(1,197.1)
2,698.8 
881.7 
622.5 

As of and for the year ended December 31,

US$
7,937.7 
286.7 
10,536.5 
419.0 
2,790.7 
169.8 
5,012.9 
5,523.6 

1,250.8 
(497.8)
(675.8)
1,523.7 
497.8 
351.5 

2004
(in millions, except per share and per ADS data)

2005

2006

2007

2003

R$
13,376.6 
686.6 
16,590.1 
997.0 
6,267.3 
504.1 
9,013.2 
7,576.9 

1,655.3 
(650.8)
(1,138.2)
2,076.5 
641.3 
564.5 

2003

R$

R$

R$

R$

R$

US$

4,130.8 
1,853.3 
(323.4)
(276.3)
1,136.5 
(329.4)
642.6 

4,397.1 
1,953.1 
(521.5)
(324.1)
1,073.0 
(479.2)
417.5 

4,953.4 
2,383.2 
(555.4)
(350.2)
1,470.2 
(401.9)
791.2 

5,527.3  
2,704.8  
(737.3)
(428.7) 
1,451.4  
(542.3) 
622.5  

5,970.8  
3,122.3  
(648.1)
(609.9) 
1,840.9  
(520.8) 
925.4  

3,370.9 
1,762.7 
(365.9)
(344.3)
1,039.3 
(294.0)
522.5 

2.82 
5.64 

1.83 
3.67 

3.47 
6.95 

2.73  
5.46  

4.06  
8.12  

2.29 
4.59 

  227,836,623  227,836,623  227,836,623  227,836,623   227,836,623   227,836,623 

15,347.2 
517.4 
17,704.5 
1,496.8 
5,553.8 
152.9 
11,339.7 
6,364.8 

15,393.9 
502.5 
18,209.8 
759.0 
5,905.2 
348.2 
11,388.4 
6,821.4 

15,473.5  
495.1  
18,498.7  
852.5  
5,459.9  
270.8  
11,200.5  
7,298.2  

15,621.0  
507.8  
18,928.9  
742.1  
4,925.4  
300.7  
11,037.3  
7,891.6  

8,818.9 
286.7 
10,686.4 
419.0 
2,780.7 
169.8 
6,231.2 
4,455.3 

15,268.9 
686.6 
17,630.4 
997.0 
6,267.3 
504.1 
11,604.3 
6,085.6 

7

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operating data (at period end): 
   Number of water connections (in thousands)
   Number of sewage connections (in thousands)
   Percentage of population with water connections 
     (%)
   Percentage of population with sewer 
     connections (%)
   Volume of water billed during period (in millions 
     of cubic meters)
   Water loss percentage during period 
     (average)(%)(7)
   Water loss per connection (average)(8)
   Number of employees 

Table of Contents

2003

6,044 
4,462 

100 

78 

As of and for the year ended December 31,
2005

2004

2006

6,358 
4,747 

100 

78 

6,489  
4,878  

100  

78  

6,609  
5,002  

99  

78  

2007

6,767 
5,167 

99 

79 

1,765 

1,692 

1,759  

1,807  

1,847 

33.0 
563 
18,546 

34.0 
547 
17,735 

32.4  
520  
17,448  

31.9  
511  
16,978  

29.5 
467 
16,850 

__________________ 
(1) Includes financial expenses, net.  
(2) The extraordinary item charged to income in the years ended December 31, 2003, 2004, 2005 and 2006 relates to the amortization (over a five-
year  period)  of  the  actuarial  liability  recorded  on  December  31,  2001  upon  first  time  recognition  of  the  defined  benefits  pension  plan.  The
presentation of the charge as an extraordinary item is consistent with the instructions of the CVM and the Brazilian Corporate Law Method. For
purposes of U.S. GAAP, the pension expense has been treated as a payroll expense from the first year presented.  
(3) Short and long-term receivables from shareholders, net represent amounts due from the State for water and sewage services. See note 6 to our
financial statements. 
(4) Based upon the statements of cash flows for the years ended December 31, 2007, 2006 and 2005 included in note 28 to our financial statements
and the statements of cash flows for the years ended December 31, 2004 and 2003 which are not included in this annual report.  
(5) The inclusion of Adjusted EBITDA information aims at presenting a measure for our economic operating performance. Our Adjusted EBITDA
means net income before financial expenses, net, income tax and social contribution tax (federal taxes on income), depreciation and amortization,
non-operating income (expenses) and extraordinary item, net of income tax and social contribution. Adjusted EBITDA is not a measure of financial
performance recognized under the Brazilian Corporate Law Method, and should not be considered individually or as an alternative for net income,
as a measure of operating performance, or alternative for operating cash flows, or as a measure of liquidity. Our definition of Adjusted EBITDA or
EBITDA may not be comparable with the definition of Adjusted EBITDA or EBITDA used by other companies. Our Adjusted EBITDA works as
a  general  indicator  of  economic  performance  and  it  is  not  affected  by  debt  restructurings,  interest  rate  fluctuations,  changes  in  tax  burden  or  in
depreciation  and  amortization  levels.  Consequently,  we  believe  that  Adjusted  EBITDA  works  as  an  adequate  tool  to  regularly  compare  our
operating  performance.  Additionally,  Adjusted  EBITDA  is  used  in  covenants  related  to  some  of  our  financial  commitments.  We  believe  that
Adjusted EBITDA allows a better understanding not only of our financial performance but also of our capacity to satisfy our liabilities and to raise
funds for our capital expenditures and working capital. Adjusted EBITDA, however, has limitations that prevent it from being used as a measure of
our profitability because it does not take into consideration other costs resulting from our business or certain other costs, which could significantly
affect  our  profits,  such  as  financial  expenses,  taxes,  depreciation,  capital  expenses  and  other  related  charges.  Adjusted  EBITDA  calculation
presented herein is in accordance with the rules issued by the Brazilian regulatory authorities, which set forth the Brazilian Corporate Law Method.
The table below sets forth, for the periods indicated, the reconciliation between our net income with Adjusted EBITDA:  

Brazilian Corporate Law Method
 Net income (loss)
Add:
 Financial expenses (income), net 
 Income tax and social contribution 
 Depreciation and amortization 
 Non-operating income (expenses), net 
 Extraordinary item, net of income and 
    social contribution taxes  
 Adjusted EBITDA 

For the year ended December 31,

2003

R$

2004

R$

2005

2006

(in millions)
R$

R$

2007

R$

US$

833.3 

346.5 
242.6 
564.5 
54.5 

513.0 

503.7 
241.9 
598.9 
33.9 

865.6 

447.0 
316.5 
596.0 
25.4 

778.9  

1,048.7 

563.3  
375.7  
642.2  
50.9  

560.9 
431.6 
622.5 
35.1 

592.0 

316.7 
243.6 
351.5 
19.9 

35.1 
2,076.5 

35.1 
1,926.5 

35.1 
2,285.6 

35.1  
2,446.1  

- 
2,698.8 

-
1,523.7 

(6) Under U.S. GAAP, income from operations is determined before financial expenses, net.  

(7) Includes both physical and non-physical losses. Water loss percentage represents the quotient of (a) the difference between (i) the total amount 
of  water  produced  by  us  less  (ii)  the  total  amount  of  water  invoiced  by  us  to  customers  minus  (iii)  the  volume  of  water  set  out  below  that  we
exclude from our calculation of water losses, divided by (b) the total amount of water produced. We exclude from our calculation of water losses
the following: (1) water discharged for periodic maintenance of water mains and water storage tanks; (2) water supplied for municipal uses such as
firefighting; (3) water we consume in our facilities; and (4) estimated water losses associated with water we supply to favelas (shantytowns).  

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(8) Measured in liters/connections per day, according to the new method of measuring our water losses, based on worldwide market practice for the
sector. See “Item 4.B. Information on the Company—Business Overview.”
(9) In 2007 we approved a reverse stock split of 125 common  shares into one common share. Under U.S. GAAP the SFAS N°128 requires the
retroactive  restatement  of  earnings-per-share  computations  for  stock  dividends,  stock  splits,  and  reverse  splits  (see  note  26  (r)  to  our  financial 
statements).  

Exchange Rates 

Before March 14, 2005, there were two principal legal foreign exchange markets in Brazil, the commercial rate exchange market and the floating
rate exchange market. On March 4, 2005, the Brazilian National Monetary Council (Conselho Monetário Nacional) enacted Resolution No. 3,265, 
pursuant  to  which  the  floating  rate  market  and  the  commercial  market  were  unified  under  the  denomination  “exchange  market,”  effective  as  of
March 14, 2005. The new regulation allows the purchase and sale of foreign currency and the international transfer of reais by any person or legal 
entity, regardless of the amount, provided, however, the transaction is legal and subject to certain regulatory procedures.  

Since 1999, the Central Bank has allowed the real/U.S. dollar exchange rate to float freely, and, since then, the real/U.S. dollar exchange rate has 
fluctuated considerably. Since the beginning of 2001, the Brazilian exchange market has been increasingly volatile, and, until early 2003, the value
of the real declined relative to the U.S. dollar. The real appreciated against the U.S. dollar in 2003, 2004, 2005, 2006 and 2007. As of December
31, 2007, the exchange rate for U.S. dollars was R$1.7713 per U$1.00. In the past, the Central Bank has intervened occasionally to control unstable
movements in foreign exchange rates. We cannot predict whether the Central Bank or the Brazilian government will continue to let the real float 
freely  or  will  intervene  in  the  exchange  rate  market  through  the  return  of  a  currency  band  system  or  otherwise.  The  real  may  depreciate  or
appreciate against the U.S. dollar substantially in the future. For more information on these risks, see “Item 3.D. Risk Factors—Risks Relating to 
Brazil.”

The following tables set forth the commercial selling rate, expressed in reais per U.S. dollar (R$/US$), for the periods indicated.  

Year

2003 
2004 
2005 
2006 
2007 

Month

Year-end

Average for
year(1)

Low

High

(reais per U.S. dollar)

2.8892 
2.6544 
2.3407 
2.1380 
1.7713 

3.0715 
2.9257 
2.4341 
2.1771 
1.9483 

2.8219 
2.6544 
2.1633 
2.0586 
1.7325 

3.6623 
3.2051 
2.7621 
2.3711 
2.1556 

Period-end

Average for
period(2)

Low

High

(reais per U.S. dollar)

January 2008 
February 2008 
March 2008 
April 2008 
May 2008 
June 2008 
____________ 
Source: Central Bank  
(1) Represents the average of the exchange rates of each trading date.  
(2) Represents the average of the lowest and highest rates in the month.  

1.7603 
1.6833 
1.7491 
1.6872 
1.6294 
1.5919 

1.7743 
1.7277 
1.7076 
1.6889 
1.6605 
1.6189 

1.7414 
1.6715 
1.6700 
1.6575 
1.6294 
1.5919 

1.8301 
1.7681 
1.7491 
1.7534 
1.6949 
1.6428 

Exchange rate fluctuations will affect the U.S. dollar equivalent of the real price of our common shares on the Bovespa as well as the U.S. dollar
equivalent of any distributions we make in reais with respect to our common shares.  

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3.B. Capitalization and Indebtedness 

Not applicable. 

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

Not applicable. 

3.D. Risk Factors 

Risks Relating to Brazil 

The Brazilian government has exercised, and continues to exercise, significant influence over the Brazilian economy. This involvement, as well
as Brazilian political and economic conditions, could adversely affect us and the market price of our shares and ADSs. 

The Brazilian government frequently intervenes in the Brazilian economy and occasionally makes significant changes in policy and regulations.
The Brazilian government’s actions to control inflation and other policies and regulations have often involved, among other measures, increases in
interest rates, changes in tax policies, price and tariff controls, currency devaluations, capital controls and limits on imports. Our business, financial
condition and results of operations, as well as the market price of our shares or ADSs, may be adversely affected by changes in public policy at
federal, state and municipal levels with respect to public tariffs and exchange controls, as well as other factors, such as:  

  the regulatory environment related to our business operations and concession contracts;  
  interest rates;  
  exchange controls and restrictions, such as those which were briefly imposed in 1989 and 1990;  
  currency fluctuations;  
  inflation;  
  liquidity of the Brazilian capital and lending markets;  
  tax and regulatory policies; and  
  other political, social and economic developments in or affecting Brazil.  

Uncertainty over whether the Brazilian government will implement changes in policy or regulation affecting these or other factors in the future may
contribute to economic uncertainty in Brazil and to heightened volatility in the Brazilian securities markets and in the securities issued abroad by
Brazilian issuers, which could have a material adverse effect on us and on our shares and ADSs.  

Inflation, and the Brazilian government’s measures to combat inflation, may contribute to economic uncertainty in Brazil, adversely affecting
us and the market value of our shares or ADSs. 

Brazil  experienced  extremely  high  rates  of  inflation  in  the  past.  Inflation  and  the  Brazilian  government’s  measures  to  fight  inflation  have  had 
significant  negative  effects  on  the  Brazilian  economy,  contributing  to  economic  uncertainty  and  heightened  volatility  in  the  Brazilian  securities
markets. The Brazilian government’s measures to control inflation have often included maintaining a tight monetary policy with high interest rates,
thereby  restricting  the  availability of  credit and reducing economic growth. The  official overnight interest  rate in  Brazil,  (SELIC), at  the  end  of
2005,  2006  and  2007  was  18.00%,  13.19%  and  11.18%,  respectively,  in  line  with  the  target  rate  set  by  the  Brazilian  Committee  on  Monetary
Policy (Comitê de Política Monetária), or COPOM. On June 30, 2008, the official interest rate in Brazil was 12.25% .  

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The annual rate of inflation, as measured by the General Market Price Index (¥ndice Geral de Preços—Mercado), or IGP-M index, has fallen from 
9.95% in 2000 to 3.83% in 2006 and increased to 7.75% in 2007. If Brazil again experiences high inflation, our costs and expenses may rise and
our overall financial performance may be adversely affected. In addition, a substantial increase in inflation may weaken investor’s confidence in 
Brazil, causing the decline in the market value of our shares or ADSs.  

Additionally, in the event of an increase in inflation, the Brazilian government may choose to raise official interest rates. Increases in interest rates
would not only affect our cost of funding, but could also have a material adverse effect on us and may also adversely affect the market value of our
shares or ADSs.  

Exchange rate instability may adversely affect us and the market price of our shares or ADSs. 

The Brazilian currency experienced frequent and substantial devaluations in relation to the U.S. dollar and other foreign currencies during the last
decades.  Throughout  this  period,  the  Brazilian  government  has  implemented  various  economic  plans  and  utilized  a  number  of  exchange  rate
policies, including sudden devaluations, periodic mini-devaluations during which the frequency of adjustments has ranged from daily to monthly,
floating exchange rate systems, exchange controls and dual exchange rate markets. From time to time, there have been significant fluctuations in
the exchange rate between the Brazilian real and the U.S. dollar and other currencies. For example, the real depreciated against the U.S. dollar by 
9.3% in 2000, 18.7% in 2001 and 34.3% in 2002. Although the real appreciated 13.4%, 9.5% and 20.7% against the U.S. dollar in 2005, 2006 and 
2007, respectively, no assurance can be given that the real will not depreciate against the U.S. dollar again. On June 30, 2008, the exchange rate
was R$ 1.5919 per US$1.00.  

In  the  event  of  a  significant  devaluation  of  the  real  in  relation  to  the  U.S.  dollar  or  other  currencies,  our  ability  to  meet  our  foreign  currency-
denominated obligations could be adversely affected, particularly because our tariff revenue and other sources of income are based solely in reais.
In  addition,  because  we  have  foreign  currency-denominated  indebtedness,  any  significant  devaluation  of  the  real  during  a  financial  period  will 
increase our financial expenses as a result of foreign exchange losses that we must record. We had total foreign currency-denominated indebtedness 
of  R$1,242.3  million  as  of  December  31,  2007,  and  we  anticipate  that  we  may  incur  substantial  amounts  of  foreign  currency-denominated
indebtedness in the future. Our overall results of operations were positively affected by the 20.7% appreciation of the real against the U.S. dollar in 
2007, which amounted to R$188.4 million. We do not currently have any hedging instruments in place to protect us against a devaluation of the
real in relation to any foreign currency. A devaluation of the real may adversely affect us and the market price of our shares or ADSs. 

Developments and the perception of risk in other countries, especially emerging market countries, may adversely affect our financing and the
market price of our shares or ADSs. 

The market value of securities of Brazilian issuers is affected to varying degrees by economic and market conditions in other countries, including
other  Latin  American  and  emerging  market  countries.  Although  economic  conditions  in  those  countries  may  differ  significantly  from  economic
conditions in Brazil, investors’ reactions to developments in these other countries may have an adverse effect on the market value of securities of
Brazilian  issuers.  Crises  in  other  emerging  countries  may  diminish  investors’  interest  in  securities  of  Brazilian  issuers,  including  our  securities. 
This could adversely affect the market price of our shares or ADSs and could also make it more difficult for us to gain access to the capital markets
and finance our operations in the future on acceptable terms, or at all.  

Risks Relating to our Control by the State of São Paulo 

We are controlled by the State of São Paulo, whose interests may differ from ours or from minority shareholders’ interests, and which could
have a material adverse effect on us. 

The State of São Paulo, through its ownership of our common shares, has the ability to determine our operating policies and strategy, to control the
election of a majority of the members of our board of directors and to appoint our senior management. As of December 31, 2007, the State owned
50.3% of our outstanding common shares.  

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The State has from time to time in the past, and may in the future, through its control of our board of directors, direct that we engage in certain
business  activities  and  make  certain  expenditures  that  promote  political,  economic  or  social  goals  but  that  do  not  necessarily  also  enhance  our
business and results of operations. See “Item 5.A. Operating and Financial Review and Prospects—Factors Affecting Our Results of Operations.”

Newly elected Governors  of the State  typically make significant changes  in  our  board of directors and senior management and,  historically,  the
chairman of our board of directors has been the Secretary of State for the State Secretariat for Sanitation and Energy (Secretaria de Saneamento e 
Energia do Estado de São Paulo).  

We have a substantial amount of accounts receivable owed to us by the State and some State entities, and we cannot assure you as to when or
whether the State will pay us.

Historically, the State and some State entities have had substantial overdue accounts payable to us relating to (1) the provision of water and sewage
services and (2) State-mandated special retirement and pension payments that we make to some of our former employees for which the State is
required to reimburse us. As of December 31, 2007, the amounts owed to us by the State for the provision of water and sewage services totaled
R$446.4 million and, with respect to payment of pensions on behalf of the State, the State owed us R$879.1 million. Amounts owed to us by the
State for water and sewage services and reimbursements for pensions paid may increase in the future. 

We have entered into agreements with the State to settle these overdue amounts payable to us. For a detailed discussion of these agreements, see
“Item  7.B.  Major  Shareholders  and  Related  Party  Transactions—Related  Party  Transactions”,  and  note  6  (ii),  (iii),  (iv),  (v)  to  our  financial 
statements. Pursuant to these agreements, the amounts due with respect to water and sewage services could be settled through the application of
dividends payable to the State by us to the repayment of amounts owed to us through December 2007. The second amendment signed on December
2007,  does  not  require  the  application  of  dividends  to  offset  accounts  receivable  from  the  State.  The  second  amendment  instead requires  the:  i)
implementation of an electronic account management system; ii) structuring of the Rational Water Use Program (PURA) to ration the consumption
of water and the amount of the water and sewage bills under the responsibility of the State; iii) establishment, by the State, of criteria for budgeting;
iv) possibility of registering State bodies and entities in a delinquency system or reference file; v) possibility of interrupting water supply to State
bodies and entities in the case of nonpayment of water and sewage bills. Furthermore, there can be no assurance that the government will pay the
total amount owed to us. On March 26, 2008, the São Paulo State Government and we, entered into a commitment agreement for the settlement of
outstanding  debts  related  to  the  reimbursement  of  pension  benefits.  Pursuant  to  the  commitment  agreement,  part  of  the  amounts  due  to  us  with
respect to payments of pensions on behalf of the State may be settled through the transfer to us of certain reservoirs in the Alto Tietê system that we
use  and  are  owned  by  the  State.  We  are  unable  to  predict  whether  and  when  these  reservoirs  will  be  transferred  to  us  because  the  Public
Prosecution Office of the State of São Paulo (Ministério Público do Estado de São Paulo) filled a civil public action alleging that a transfer to us of
ownership  of  the  Alto  Tietê  system  reservoirs  is  illegal.  See  “Item  8.A.  Consolidated  Statements  and  other  Financial  Information—Legal
Proceedings.”

We cannot assure you as to when or if the State will pay overdue amounts owed to us. In addition, even though the State acknowledges its debts to
us related to pension benefits, the State disagrees with the criteria adopted by us to grant and pay the benefits. The State based it´s disagreement on
legal opinions issued by the State Attorney General, which restrict State actions and prevent the voluntary reimbursement of amounts paid by us.
We  will  not  waive  the  receivables  from  the  State  to  which  we  consider  ourselves  to  be  legally  entitled.  Accordingly,  we  will  take  all  possible
actions  to  resolve  the  issue  at  all  technical  and  court  levels.  Should  this  dispute  persist,  we  will  take  all  the  necessary  actions  to  protect  our
interests. Due to the State’s history of not making timely payments to us in respect of services and of not reimbursing us in a timely manner for the
payments of pensions on behalf of the State, we cannot assure you that the amount of accounts receivable owed to us by the State and some State
entities will not significantly increase in the future. In addition, we have not established any provisions for any amounts due to us by the State, as
we do not expect to incur any significant losses relating to these amounts. If the State does not pay the amount it owes to us, we will be adversely
affected.  

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We  may  be  required  to  acquire  reservoirs  that  we  use  and  that  are  owned  by  a  State-controlled  company,  or  we  may  be  required  to  pay
substantial charges to the owner with respect to our use of these reservoirs. 

In connection with the provision of water services, we use the Billings and Guarapiranga reservoirs that are owned by a State-controlled company. 
Our right to use these reservoirs is provided for through a grant issued by the State Department of Water and Energy (Departamento de Águas e 
Energia Elétrica do Estado de São Paulo—DAEE). The State, through its control of our board of directors, could require us to acquire the Billings
and  Guarapiranga  reservoirs.  As  a  result  of  these  acquisitions,  our  cash  position  and  overall  financial  condition  could  be  adversely  affected.  In
addition, since we are not currently charged for the use of these reservoirs, we are uncertain as to whether we will continue to be able to use the
reservoirs without paying charges, or what the likely fee scale would be, if imposed. We may also be required to pay additional maintenance and
operational costs for our use of the Billings and Guarapiranga reservoirs. If we were required to pay substantial charges to the owner or additional
maintenance or operational costs for our use of these properties, we could be adversely affected.  

Risks Relating to Our Business 

We cannot anticipate the effects that the new legislation enacted in January 2007 will have on the basic sanitation sector in Brazil. 

On January 5, 2007, Law No. 11,445 was enacted to regulate the basic sanitation industry in Brazil. Although this law has been enacted for more
than one year, it is in its initial stage of implementation and we cannot anticipate the effects that it will have on our operations and business. In
compliance  with  Law  No.  11,445,  the  State  of  São  Paulo  created  in  December  2007,  ARSESP  –  the  São  Paulo  State  Sanitation  and  Energy 
Regulatory Agency, which is the regulatory agency that regulates the basic sanitation services pertaining to the State, respecting they federal and
municipal jurisdictions and prerogatives and exercising the following functions: 

  complying with and enforcing state and federal basic sanitation legislation;  
  publishing the organizational platform for the services, indicating the types of services provided by the state as well the equipment and 

facilities composing the system;  

  assuming, where applicable, the legal attributions of the jurisdictional authority;  
  establishing, in accordance with the tariff guidelines defined by  the decree, tariffs and other manners for the compensation of services, 
adjusting and reviewing them to ensure the financial-economic balance of services and low-cost tariffs through mechanisms that increase 
service efficiency and lead to the appropriation of productivity gains by society; and  

  to approve, oversee and regulate (including tariff issues) sewage treatment and wholesale water supply agreements entered into between

the state supplier and other suppliers, pursuant to Article 12 of new basic sanitation law.  

There are several uncertainties related to the new legislation which could have a material adverse effect on us. See “Item 4.B. Business Overview—
The Basic Sanitation Law — Public Consortia Law and Cooperation Agreements.” 

We are exposed to risks associated with the provision of water and sewage services. 

Our industry is specifically affected by the following risks associated with the provision of water and sewage services: 

  we may become subject to substantial water-related and sewage-related charges imposed by governmental water agencies of the State and 
of  the  Federal  Government  related  to  the  abstraction  of  water  from,  or  dumping  of  sewage  into,  water  resources  controlled  by  these
agencies,  which  we  may not  be able  to  pass on  to  our  customers.  See  “Item 4.B. Business Overview—Government Regulation —Water
Usage”;

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  in some cases, we are required to continue providing services to certain municipalities to which we provide water on a wholesale basis 
that have overdue amounts owed to us and are not paying us on a regular basis and we cannot assure you as to when or whether these
municipalities will pay us;  

  our  tariffs  may  not  increase  in  line  with  increases  in  inflation  and  operating  expenses,  including  taxes,  or  to  increase  them  in  a  timely 
manner, due to political and legal constraints that may hinder us from passing on to our customers increases in our cost structure. These 
constraints may also have an adverse effect on our capability to fund our capital expenditure program and financing activities and to meet 
our  debt  service  requirements.  see  “Item  5.A.  Operating  and  Financial  Review  and Prospects—Factors  Affecting  Our  Results  of
Operations—Effects of Tariff Increases”;

  we are exposed to droughts that may adversely affect our water supply systems, resulting in a decrease in the volume of water distributed 

and billed as well as in the revenue from water supply; and  

  we are dependent upon energy to conduct our operations and shortages or rationing of energy may prevent us from providing water and 
sewage services and may also cause material damages to our water and sewage systems when we resume operations. Also, we may not be 
able to pass on to customers significant increases in energy tariffs.  

The occurrence of any of the above may have a material adverse effect on us.  

We do not hold formal concessions to provide water and sewage services to the City of São Paulo and several other municipalities that we serve,
and therefore we may not be able to enforce our rights to continue to provide services in these municipalities.

Our operations are concentrated in the City of São Paulo with which we have not entered into a concession contract. As of December 31, 2007, the
City  of  São  Paulo  accounted  for  56.3%  of  our  sales  and  services  rendered.  In  addition,  we  do  not  hold  formal  concessions  in  36  other
municipalities  in  the  State  of  São  Paulo,  particularly  in  the  municipality  of  Santos,  in  the  coastal  region,  where  we  operate  under  a  deed  of
authorization (escritura pública de autorização) and that has a significant population of approximately 428,000 as of December 31, 2007.  

Because we do not hold concessions or formal contract rights to provide services in these municipalities, we may not be able to effectively enforce
our right to continue to provide services or to be paid for the services we provide. In the future, our rights in respect of the City of São Paulo and
these other municipalities could be modified or adversely affected by Brazilian federal, state or local governmental actions, judicial decisions or
other factors. 

From  time  to  time,  mayors  of  the  City  of  São  Paulo  have  initiated  or  proposed  discussions  with  the  State  regarding  entering  into  a  formal
concession contract with us to provide water and sewage services in the City of São Paulo. For a detailed discussion of these initiatives, see “Item
4.B. Business Overview—Government Regulation—Concessions.”

The  sanitation  legislation,  Law  No.  11,445,  enacted  in  January  2007,  sets  December  31,  2010  as  the  deadline  for  water  and  sewage  service
companies, such as us, to regularize the provision of water and sewage services to municipalities, in case there is no formal concession to provide
services to  municipalities.  We  cannot  anticipate  the  terms  and  conditions  of  these  contracts and  their  effects  on  the  provision of  our  services in
these  municipalities,  particularly  with  respect  to  the  City  of  São  Paulo  which  is  awaiting  a  court  ruling  regarding  the  ownership  of  services  in
metropolitan regions. 

In  the  case  of  the  City  of  São  Paulo,  in  November  2007,  we  entered  into  a  cooperation  agreement  with  the  City  of  São  Paulo  that  determined
certain  basic  sanitation  and  environmental  actions  and  resolved  outstanding  financial  obligations  of  the  City  of  São  Paulo  until  it  is  possible  to
formalize  definitive  legal  instruments  that  assure  stability  in  the  provision  of  public  basic  sanitation  services,  regardless  of  the  substance  of  the
legal ruling currently awaited.  

Furthermore,  we  cannot  assure  you  when  and  if  there  will  be  changes  to  the  conditions  under  which  we  currently  provide  water  and  sewage
services to these municipalities without holding formal concessions and we cannot anticipate their effects on the provision of our services in the
City of São Paulo and in these other municipalities.  

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We  may  face  difficulties  to  continue  to  provide  water  and  sewage  services  in  the  municipalities  we  serve  and  we  cannot  assure  you  that  these
municipalities will continue to require our provision of services under the same terms. At the end of 2007, we were a provider of water and sewage
services to 366 municipalities, although, due to judicial orders, we had temporarily stopped operating three of them (Araçoiaba da Serra, Cajobi e
Monte Alto). We have recently resumed providing service to Monte Alto. As for the other two municipalities (Araçoiaba da Serra and Cajobi) we
are still in litigation. Even if we cannot resume providing services to these municipalities, there will be no major impact on us as: i) revenue from
these operations account for less than 0.2% of our total revenues, and ii) we will continue to be entitled to indemnities related to the assets invested
in these municipalities and not yet amortized. Substantially all of these concessions have 30-year terms. As of December 31, 2007, we had 106 
program  contracts  in  place.  In December  2008,  104  concession  contracts  will  expire  or  be  under  negotiation  with  the  respective  municipalities.
Between 2009 and 2034, 117 concession contracts will expire. The remaining concession contracts have no expiration date. As of December 31,
2007, the carrying value of our assets at the municipalities with concession contracts under negotiation or expiring in 2007 and 2008 totaled R$
2.02 billion and revenues from these municipalities for the year ended December 31, 2007 totaled R$935 million.  

In case certain municipalities continue to require our provision of water and sewage services, we cannot assure you that we will obtain in the new
contracts  the  same  terms  under  which  we  currently  provide  services  to  them  because  the  new  basic  sanitation  law  prevents  us  from  planning,
regulating  and  monitoring  our  services  and  it  requires  a  more  stringent  control  by  the  municipalities  or  by  the  São  Paulo  State  Sanitation  and
Energy Regulatory Agency (ARSESP), which was created by the São Paulo State government through Supplementary Law 1,025 of December 7,
2007.  

In case certain municipalities no longer require our provision of water and sewage services, we may be adversely affected. See “Item 4.B. Business 
Overview—Our Operations” and “Item 4.B. Business Overview—Government Regulation—Public Consortia Law and Cooperation Agreements.” 

We may also face difficulties in continuing to provide water and sewage services to certain municipalities by means of new contracts because of an
increase in competition and in case we are outbid from a public bidding process. 

Municipalities may terminate our concessions before their expiration and the compensation may be inadequate to recover the full value of our
investments.

The  concessions  we  hold  are  subject  to  early  termination  by  the  municipalities  under  certain  circumstances.  Municipalities  may  terminate  our
concessions if we fail to comply with our obligations under the relevant concession contract and applicable law, or if the municipality determines,
based on authorization by municipal law, through an expropriation proceeding, that terminating our concession prior to the contractual expiration
date is in the public interest. If any municipality terminates our concession, we are entitled to be indemnified for the unamortized portion of our
investments,  but  the  compensation  may  not  be  sufficient  for  us  to  recover  the  full  value  of  our  investments.  Further,  under  the  terms  of  the
Constitution of the State of São Paulo, we may receive the compensation over a term of 25 years. The early termination by municipalities of any of
our concession contracts, or our inability to receive adequate compensation for the investments we made, or if compensation is paid over a term of
25 years, would have a material adverse effect on us.  

In 1997, the municipality of Santos enacted a law expropriating our water and sewage systems in Santos. In 1995, the municipality of Diadema
terminated the concession contract that had been entered into with us prior to the expiration of the agreement. There are pending legal proceedings
discussing both the expropriation carried out by the municipality of Santos and early termination by the municipality of Diadema. We continue to
provide water and sewage services to Santos and sell water on a wholesale basis to Diadema. For further information on these lawsuits, See “Item
8.A. Consolidated Statements and other Financial Information—Legal Proceedings.”

We  cannot  assure  you  that  other  municipalities  will  not  seek  to  terminate  their  concessions  before  the  contractual  expiration  date.  Exercise  of
concession termination rights by substantial numbers of municipalities could have a material adverse effect on us.  

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Law No. 11,445/07, the new basic sanitation law, provides that the parties to new contracts have to establish the amount of the compensation in the
agreement  for  the  unamortized  portion  of  the  investment  in  case  of  termination  of  the  agreement  prior  to  the  contractual  expiration  date.  In  the
event  there  is  no  agreement  between  the  parties  for  the  unamortized  portion  of  the  investment  to  be  repaid  to  the  service  provider  in  case  of
termination  of  the  agreement  prior  to  the  contractual  expiration  date,  the  new  law  determines  a  default  provision,  i.e.,  the  valuation  of  the
investment by an independent expert based on the economic value or revaluation of the book value of the investment. This default provision of
Law  No.  11,445/07  may  also  be  applicable  to  current  concessions  but  in  the  absence  of  mutual  agreements,  the  calculation  of  the  indemnity  is
based  on  the  terms  and  conditions  of  the  previous  agreement.  In  addition,  we  cannot  anticipate  the  effects  of  this  law  on  the  amount  of,  and
enforceability of the right to, compensation and how Brazilian courts will enforce the provisions of Law No. 11,445/07.  

Any failure to obtain new financing may adversely affect our ability to continue our capital expenditure program. 

Our  capital  expenditure  program  requires  substantial  liquidity  and  capital  resources  of  approximately  R$5.87  billion  in  the  period  from  2007
through 2010, of which we spent R$ 921.1 million in 2007 and we expect to spend R$1,574.0 million in 2008.  

We  have  funded  in  the  past,  and  we  plan  to  continue  to  fund,  these  expenditures  with  funds  generated  by  operations  and  domestic  and  foreign
currency  borrowings  on  acceptable  terms.  A  significant  portion  of  our  financing  needs  have  been  funded  by  lenders  controlled  by  the  Federal
Government. We also benefit from long-term financing from international multilateral agencies and development banks at attractive interest rates.
Changes in the policies of the Federal Government regarding the financing of water and sewage services, or our failure to continue to benefit from
long-term financing from domestic and international multilateral agencies and development banks at attractive interest rates may impair our ability
to meet our obligations or finance our capital expenditure program and could have a material adverse effect on us.  

As a general rule, financial institutions and other institutions authorized to provide credit by the Central Bank may only provide loans to public
sector entities, such as us, up to a certain percentage of the entities’ shareholders’ equity. Because of these limitations on our ability to obtain credit 
from domestic financial institutions, our options for raising funds, other than the cash generated by our operations, consist mainly of borrowing
from  national  and  international  financial  institutions  or  development  agencies  and  issuing  debt  securities  in  both  the  domestic  and  international
capital markets. These legal limitations could adversely affect our ability to continue our capital expenditure program.  

We are also subject to financial covenants limiting our ability to incur additional indebtedness, whether denominated in reais or foreign currency. 
Under  these  covenants,  we  would  have  been  able  to  borrow  up  to  an  additional  R$3,329.8  million  as  of  December  31,  2007.  These  contractual
limitations may prevent us from completing our capital expenditure program, which could have a material adverse effect on us.  

We are subject to cost increases to conform to environmental requirements and potential environmental responsibilities

Our facilities are subject to extensive Brazilian federal, state, local levels, regulatory laws, and environmental covenants relating to the protection
of human health and the environment. We could be subject to civil public actions and criminal, administrative and other civil proceedings for non-
compliance  with  environmental  laws  and  regulations,  which  could  expose  us  to  civil  penalties  and  criminal  sanctions,  such  as  fines,
indemnification.  Since environmental  laws and their  enforcement  by Brazilian authorities  are becoming more  stringent,  our  capital expenditures
and expenses for environmental compliance may increase substantially. We are a party to a number of civil public actions related to environmental
matters, with regard to which we are unable to calculate our estimated amount of potential liability. For further information on these lawsuits, See
“Item 8.A. Consolidated Statements and other Financial Information—Legal Proceedings.”  

Civil lawsuits and inquiries involving environmental matters are in large part related to the discharge of untreated sewage into waterways and the
disposal of sludge from water and sewage treatment stations. However, we are committed to fulfilling environmental obligations, seeking to work
proactively  and  preventively.  We  have  pledged  to  cooperate  with  oversight  agencies  and  with  the  Public  Prosecutors’  Office,  with  which  it  has 
established commitments and formalized the terms of our compliance. 

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Our  compliance  requirements  have  been  implemented  with  extreme  technical  and  administrative  rigor,  aiming  to  conform  with  environmental
requirements. Our compliance with the commitments arising from these agreements and instruments is provided for in the budget. 

Given  the  need  to  periodically  renew  licenses  and  authorizations,  We  have  been  enhancing  our  management  instruments  used  to  monitor  our
operations and facilities in terms of our compliance with the technical requirements of the licenses and authorizations currently in force and the
needs related to the regulatory compliance of the existing operational park. Environmental feasibility and compliance analyses are present in all
phases of our new projects, including the conception, installation and operational phases.  

Due to pending cases in the Brazilian Supreme Court, there is potential instability in the legal framework with respect to which governmental
authority has the right to plan and regulate basic sanitation services in metropolitan areas. 

We are aware of two lawsuits (Ações de Inconstitucionalidade: ADIN 1842-5 Rio de Janeiro and ADIN 2.077 -3 Bahia) pending in the Brazilian 
Supreme  Court  that  involve  constitutional  issues  related  to  the  level  of  public  governmental  authority  (states,  municipalities  or  groups  of
municipalities)  that  has  the  right  to  plan  and  regulate  basic  sanitation  services  delivered  in  metropolitan  areas,  as  well  as  the  right  to  execute
concession and program agreements.  

Although the State of São Paulo is not party to either of these cases and the decisions in each of these cases will not bind the State of São Paulo,
any  municipality  in  the  State  of  São  Paulo  or  their  contractual  relations  with  us,  the  outcome  will  likely  influence  future  decisions  of  state  and
federal courts in the State of São Paulo with respect to similar lawsuits.  

We  cannot  assure  you  when  the  lawsuits  will  be  determined  nor  do  we  know  how  we  will  be  affected  by  the  outcome  of  these  lawsuits.  If
municipalities are granted the right to plan and regulate basic sanitation services in metropolitan areas, they may decide to hold public biddings or
even provide basic sanitation services on their own instead of executing a concession or program agreement with us, in which case, we are likely to
face a substantial increase in competition from other bidders and municipalities. 

Any substantial monetary judgment against us in legal proceedings may have a material adverse effect on us.

We  are  a  party  to  a  number  of  legal  proceedings  involving  significant  monetary  claims.  These  legal  proceedings  include,  among  others,  civil,
environmental,  tax,  labor,  condemnation  and  other  proceedings.  A  substantial  monetary  judgment  against  us  in  one  or  more  of  these  legal
proceedings  may  have  a  material  adverse  effect  on  us.  Based  on  advice  from  our  lawyers,  we  have  provisioned  a  total  aggregate  amount  of
R$945.3 million as of December 31, 2007 to cover probable losses related to legal proceedings. However, this provision does not cover all legal
proceedings involving monetary claims filed against us and it may be insufficient to cover our liabilities related to these claims. Any unfavorable
judgment in relation to these proceedings may have an adverse effect on us. For more information, see “Item 8.A. Consolidated Statements and
other Financial Information—Legal Proceedings.”

Risks Relating to Our Common Shares and ADSs

The  relative  volatility  and  illiquidity  of  the  Brazilian  securities  markets  may  substantially  limit  your  ability  to  sell  our  common  shares
underlying the ADSs at the price and time you desire. 

Investing in securities that trade in emerging markets, such as Brazil, often involves greater risk than investing in securities of issuers in the United
States, and these investments are generally considered to be more speculative in nature. The Brazilian securities market is substantially smaller, less
liquid, more concentrated and can be more volatile than major securities markets in the United States. Accordingly, although you are entitled to
withdraw the common shares underlying the ADSs from the depositary at any time, your ability to sell the common shares underlying the ADSs at
a price and time at which you wish to do so may be substantially limited. There is also significantly greater concentration in the Brazilian securities
market than in major securities markets in the United States. The ten largest companies in terms of market capitalization represented approximately
54.7% of the aggregate market capitalization of the Bovespa as of December 31, 2007. The top ten stocks in terms of trading volume accounted for
approximately 51%, 46.4% and 45.8% of all shares traded on the Bovespa in 2005, 2006 and 2007 respectively.  

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Restrictions  on  the  movement  of  capital  out  of  Brazil  may  impair  the  ability  of  holders  to  receive  dividends  and  distributions  on,  and  the
proceeds of any sale of, the common shares underlying our ADSs. 

The Brazilian government may impose temporary restrictions on the conversion of Brazilian currency into foreign currencies and on the remittance
to  foreign  investors  of  the  proceeds  of  their  investments  in  Brazil.  Brazilian  law  permits  the  government  to  impose  these  restrictions  whenever
there is a serious imbalance in Brazil’s balance of payments or there are reasons to foresee a serious imbalance.  

The  Brazilian  government  imposed  remittance  restrictions  in  1990.  Similar  restrictions,  if  imposed,  would  impair  or  prevent  the  conversion  of
dividends, distributions, or the proceeds from any sale of common shares, as the case may be, from reais into U.S. dollars and the remittance of the 
U.S. dollars abroad. We cannot assure you that the Brazilian government will not take similar measures in the future. In such a case, the depositary
for our ADSs will hold the reais it cannot convert for the account of the ADR holders who have not been paid. The depositary will not invest the
reais and it will not be liable for the interest.  

Investors  who  exchange  ADSs  for  common  shares  may  lose  their  ability  to  remit  foreign  currency  abroad  and  to  obtain  Brazilian  tax
advantages. 

The Brazilian custodian for the common shares underlying our ADSs must obtain a certificate of registration from the Central Bank to be entitled
to  remit  U.S.  dollars  abroad  for  payments  of  dividends  and  other  distributions  relating  to  our  common  shares  or  upon  the  disposition  of  our
common shares. If an ADR holder decides to exchange ADSs for the underlying common shares, this holder will be entitled to continue to rely —
for five business days from the date of exchange — on the custodian’s certificate of registration. After that period, the holder may not be able to
obtain and remit U.S. dollars abroad upon the disposition of our common shares, or distributions relating to our common shares, unless he or she
obtains his or her own certificate of registration or register under Resolution No. 2,689, of January 26, 2000, of the Brazilian National Monetary
Council, which entitles registered foreign investors to buy and sell on the Brazilian stock exchanges. If the holder does not obtain a certificate of
registration or register under Resolution No. 2,689, this holder will generally be subject to less favorable tax treatment on gains with respect to our
common shares.  

If a holder attempts to obtain his or her own certificate of registration, the holder may incur expenses or suffer delays in the application process,
which could delay his or her ability to receive dividends or distributions relating to our common shares or the return of his or her capital in a timely
manner. We cannot assure you that the custodian’s certificate of registration or any foreign capital registration obtained by a holder may not be
affected by future legislative changes, or that additional restrictions applicable to the holder, the disposition of the underlying common shares or the
repatriation of the proceeds from disposition will not be imposed in the future.  

A holder of common shares or ADSs may face difficulties in protecting his or her interests as a shareholder because we are a Brazilian mixed
capital company. 

We are a mixed capital company (sociedade de economia mista) organized under the laws of Brazil, and all of our directors and officers and our
controlling shareholder reside in Brazil. All of our fixed assets and those of these other persons are located in Brazil. As a result, it may not be
possible for a holder to effect service of process upon us or these other persons within the United States or other jurisdictions outside Brazil or to
enforce against us or these other persons judgments obtained in the United States or other jurisdictions outside Brazil. Because judgments of U.S.
courts for civil liabilities based upon the U.S. federal securities laws may only be enforced in Brazil if certain requirements are met, a holder may
face  difficulties  in  protecting  his  or  her  interests  in  the  case  of  actions  by  our  directors,  officers  or  our  controlling  shareholder  than  would
shareholders of a corporation incorporated in a state or other jurisdiction of the United States. In addition, under Brazilian law, none of our assets
which are essential to our ability to render public services are subject to seizure or attachment. Furthermore, the execution of a judgment against
our controlling shareholder may be delayed as payment of the judgment must be made pursuant to the State’s budget in a subsequent fiscal year. 
None of the public property of our controlling shareholder is subject to seizure or attachment, either prior to or after judgment.  

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The protections afforded to minority shareholders in Brazil are different from those in the United States and other jurisdictions and may be
more difficult to enforce. 

Under  Brazilian  law,  the  protections  afforded  to  minority  shareholders  are  different  from  those  in  the  United  States  and  other  jurisdictions.  In
particular,  the  case  law  with  respect  to  shareholder  disputes  is  less  developed  under  Brazilian  law  than  under  US  law  and  the  laws  of  other
jurisdictions and there are different procedural requirements for bringing shareholder lawsuits, such as shareholder derivative suits. As a result, in
practice it may be more difficult for our minority shareholders to enforce their rights against us or our directors or controlling shareholder than it
would be for shareholders of a non-Brazilian company.

Actual or anticipated sales of a substantial number of our common shares could decrease the market prices of our common shares and ADSs. 

Sales of a substantial number of our common shares — or the anticipation of such sales — could decrease the trading price of our common shares 
and  ADSs.  As  of  December  31,  2007,  we  had  227,836,623  common  shares  outstanding,  including  114,508,087  shares  held  by  the  State.  As  a
consequence of the issuance of common shares or sales by the State or other existing shareholders, the market price of our common shares and, by
extension, our ADSs may decrease significantly. As a result, a holder may not be able to sell his or her securities at or above the price he or she
paid for them.  

Mandatory arbitration provisions in our by-laws may limit the ability of a holder of our ADSs to enforce liability under U.S. securities laws. 

Under our by-laws, any disputes among us, our shareholders and our management with respect to the application of Novo Mercado rules, Brazilian 
Corporate  Law  and  the  application  of  the  rules  and  regulations  regarding  Brazilian  capital  markets  will  be  resolved  by  arbitration  conducted
pursuant  to  the  São  Paulo  Stock  Exchange  Arbitration  Rules  in  the  São  Paulo  Stock  Exchange  Arbitration  Chamber.  Any  disputes  among
shareholders, including ADR holders, and disputes between us and our shareholders, including ADR holders, will also be submitted to arbitration.
The State is currently not permitted by law to sell its control shares. As a result, a court in the United States might require that a claim brought by
an ADR holder predicated upon the U.S. securities laws be submitted to arbitration in accordance with our by-laws. In that event, a purchaser of
ADSs would be effectively precluded from pursuing remedies under the U.S. securities laws in the U.S. courts.

A  holder  of  our  common  shares  and  ADSs  might  be  unable  to  exercise  preemptive  rights  and  tag-along  rights  with  respect  to  the  common 
shares. 

U.S. holders of common shares and ADSs may not be able to exercise the preemptive rights and tag-along rights relating to common shares unless 
a  registration  statement  under  the  U.S.  Securities  Act  of  1933  is  effective  with  respect  to  those  rights  or  an  exemption  from  the  registration
requirements of the Securities Act is available. We are not obligated to file a registration statement with respect to our common shares relating to
these rights, and we cannot assure you that we will file any such registration statement. Unless we file a registration statement or an exemption
from registration is available, an ADR holder may receive only the net proceeds from the sale of his or her preemptive rights and tag-along rights 
or, if these rights cannot be sold, they will lapse and the ADR holder will receive no value for them.  

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A holder of our ADSs may find it more difficult than a holder of our common shares to exercise his or her voting rights at our shareholders’
meetings. 

Holders may exercise voting rights with respect to the common shares represented by our ADSs only  in accordance with the deposit agreement
relating  to  our  ADSs.  There  are  no  provisions  under  Brazilian  law  or  under  our  by-laws  that  limit  the  exercise  by  ADR  holders  of  their  voting 
rights  through  the  depositary  with  respect  to  the  underlying  common  shares.  However,  there  are  practical  limitations  upon  the  ability  of  ADR
holders  to  exercise  their  voting  rights  due  to  the  additional  procedural  steps  involved  in  communicating  with  these  holders.  For  example,  our
common shareholders will receive notice of shareholders’ meetings through publication of a notice in an official government publication in Brazil
and will be able to exercise their voting rights by either attending the meeting in person or voting by proxy. ADR holders, by comparison, will not
receive notice directly from us. Instead, in accordance with the deposit agreement, we will provide the notice to the depositary, which will, in turn,
as soon as practicable thereafter mail to ADR holders the notice of the meeting and a statement as to the manner in which instructions may be given
by  holders,  but  only  if  we  request  the  depositary  to  do  so.  To  exercise  their  voting  rights,  ADR  holders  must  then  instruct  the  depositary  as  to
voting  the  common  shares  represented  by  their  ADSs.  Due  to  these  procedural  steps  involving  the  depositary,  the  process  for  exercising  voting
rights  may  take  longer  for  ADR  holders  than  for  holders  of  common  shares.  ADSs  for  which  the  depositary  fails  to  receive  timely  voting
instructions will not be voted at any meeting.  

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4.A. History and Development of the Company 

ITEM 4. INFORMATION ON THE COMPANY 

Companhia de Saneamento Básico do Estado de São Paulo-SABESP is a sociedade de economia mista, a mixed capital company, incorporated on 
November  1,  1973,  with  limited  liability  of  unlimited  duration,  duly  organized  and  operating  under  Brazilian  Corporate  Law.  Our  principal
executive offices are located at Rua Costa Carvalho, 300, 05429-900 São Paulo, SP, Brazil. Our telephone number is (55-11 3388-8000). Our agent 
for service of process in the United States is CT Corporation System, with offices at 818 West Seventh Street – Team 1, Los Angeles, CA 90017. 
As set forth in Article 2 of our by-laws, our corporate purpose is to plan, provide and operate basic sanitation services throughout the territory of
the  State  of  São  Paulo,  and  sell  these  services  and  the  related  benefits  that  directly  or  indirectly  arise  in  connection  with  these  services.  Under
Article 63 of Supplementary Law 1,025 of December 7, 2007, we were permitted to expand our operational scope geographically and to add new
types  of  services  related  to  environmental  sanitation  and  energy.  See  “Item  4.B.  Business  Overview  –  Public  Consortia  Law  and  Cooperation 
Agreements”.

We operate water and sewage systems in the State of São Paulo in which the City of São Paulo, Brazil’s largest city, is located. According to the 
Brazilian Institute of Geography and Statistics (Instituto Brasileiro de Geografia e Estatística), or IBGE, the State of São Paulo is Brazil’s most 
populous state and the state with the highest gross domestic product, or GDP, in Brazil. We had net revenue from sales and services of R$5,970.8
million  (US$3,370.9  million)  and  net  income  of  R$1,048.7  million  (US$592.0  million)  for  2007.  We  had  total  assets  of  R$18,663.4  million
(US$10,536.5 million) and shareholders’ equity of R$9,784.0 million (US$5,523,6 million) as of December 31, 2007.  

We  provide  water  and  sewage  services  to  a  broad  range  of  residential,  commercial,  industrial  and  governmental  customers  in  366  of  the  645
municipalities in the State of São Paulo, including the City of São Paulo. We also supply water on a wholesale basis to six municipalities in the São
Paulo Metropolitan Region in which we do not operate water systems. For the year ended December 31, 2007, the São Paulo Metropolitan Region
(including the municipalities to which we provide water on a wholesale basis) and the Regional Systems accounted for 75.8% and 24.2% of our
gross revenue from sales and services, respectively.  

As of December 31, 2007, we provided water services to approximately 23.0 million people, approximately 59% of the urban population of the
State of São Paulo, with a universalization of Water Coverage through 62,318 kilometers of water pipes and mains to approximately 6.8 million
water  connections.  As  of  December 31,  2007,  we  provided  sewage  services  to  approximately  18.9  million  people  through  40,608  kilometers  of
sewer lines to approximately 5.2 million sewage connections. In addition, we currently sell water on a wholesale basis to six municipalities with a
total estimated population of approximately 3.2 million.  

The State, our controlling shareholder, is required by our by-laws and State law to own at least one-half plus one of our common (voting) shares. 
The  State  currently  owns  50.3%  of  our  outstanding  common  shares.  As  a  mixed  capital  company,  we  are  an  integral  part  of  the  governmental
structure of the State. Our strategy and major policy decisions are formulated in conjunction with the State Secretariat for Sanitation and Energy
(Secretaria de Saneamento e Energia do Estado de São Paulo) as part of the overall strategic planning for the State. The majority of the members
of our board of directors and our board of executive officers are nominated by the State Council for Protection of Capitals of the State (Conselho de 
Defesa de Capitais do Estado de São Paulo), or CODEC, a State agency presided over by the Secretary of the State Treasury and reporting directly
to the Governor.  

In addition, our capital expenditure budget is subject to approval by the legislature of the State and is approved in conjunction with the budget of
the State Secretariat for Sanitation and Energy (Secretaria de Saneamento e Energia do Estado de São Paulo) as a whole. Our financial statements 
and accounting records are subject to review by the State Accounts Tribunal (Tribunal de Contas), as are all accounts of the State.  

Our Strengths 

We believe that our strong business position and future prospects relate to the following strengths:  

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Well-established business with significant size and scale. We provide water services directly and through other public companies to approximately
26.2  million  people  (including  the  municipalities  to  which  we  provide  water  services  on  a  wholesale  basis),  having  a  universalization  of  Water
Coverage  as  of  December  31,  2007,  and  sewage  services  to  approximately  18.9  million  people,  having  a  Sewage  Coverage  Ratio  of  79%  as  of
December 31, 2007. From 2004 to 2007, our net revenue from sales and services has increased by an average of 10.8% per year.  

Operations  in  Brazil’s  most  populous  and  wealthy  state.  The  State  of  São  Paulo,  part  of  the  most  developed  and  economically  active  region  of
Brazil, is the most populous state in Brazil, with an estimated population of 41.3 million as of December 31, 2007. The City of São Paulo had an
estimated population of 10.9 million as of December 31, 2007, with 19.7 million inhabitants in the São Paulo Metropolitan Region. Based on its
GDP, the State of São Paulo is the wealthiest state and largest economy in Brazil. The GDP of the State of São Paulo was approximately R$727.1
billion in 2005, representing approximately 34% of Brazil’s total GDP. The State of São Paulo generates more revenues from water and sewage
services than any other Brazilian state. 

High-quality operations. We believe that we adhere to high standards of service and utilize the best available technology in the sanitation business
to control the quality of the water captured, produced and distributed. All 16 of our water quality control laboratories operate in accordance with
NBR ISO/IEC 17,025 with 12 of these 16 laboratories accredited by INMETRO (National Institute of Metrology, Standardization and Industrial
Quality), thereby assuring the quality of the test results. Moreover, the laboratories and field teams use the latest equipment to detect substances
controlled by regulations and have highly trained teams to handle contingencies and customer complaints. We believe our technology enhances the
efficiency and quality of our operations.  

Access  to  low-cost  and  diverse  sources  of  financing.  Our  strong  cash  flow  generation  from  operations  and  compliance  with  financial  covenants
place us in a privileged position in our industry to obtain low cost, long-term financing from Brazilian public banks and international multilateral 
agencies and development banks. In addition, we are not dependent upon one or few sources of financing. We benefit from various alternatives of
funding available in the Brazilian and international markets for our working capital needs and our capital expenditure programs.

Strong corporate governance practices. In 2002, we joined the Novo Mercado, the highest corporate governance listing segment of the São Paulo 
Stock  Exchange  (Bolsa  de  Valores  de  São  Paulo  –  Bovespa).  We  are  committed  to  maintaining  certain  corporate  governance  practices  and
disclosure requirements in addition to those already required under Brazilian law. Sabesp has integrated, as of December 1st, 2007, the Bovespa 
Corporate Sustainability Index (ISE), being the only company from the sanitation sector to be part of this index, which reflects the performance of
our actions representing its high level of commitment with sustainability and social responsibility. These corporate governance practices requires
that we increase shareholders’ rights and to enhance the quality of information provided to our shareholders.  

Expansion opportunities. We had a Sewage Coverage Ratio of 79% as of December 31, 2007, and plan to increase this level to 84% by 2010 by
adding over 791,700 sewage connections. In addition, there are municipalities in the State of São Paulo in which we currently do not operate water
or sewage concessions or to which we currently supply water solely on a wholesale basis, which represent a total population of approximately 15.9
million. Our strong presence in the State and experience in providing water and sewage services place us in a privileged position to expand our
Sewage  Coverage  Ratio  in  municipalities  where  we  only  provide  water  services  and  to  expand  our  water  and  sewage  services  to  municipalities
where we are not yet operating, not only in the State of São Paulo but also in other states of Brazil and abroad.

Our Strategy

Our mission is to make public sanitation services universally available in the State of São Paulo and to provide quality services in both the national
and international markets. To this end, our strategic objectives are based upon the guiding principles of growth, quality, universalization of water
services,  social,  economic  and  environmental  sustainability,  as  well  as  our  political  and  institutional  relationships.  We  seek  to  implement  these
guiding principles through the following strategies:  

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Continue  to  reduce  operating  costs  and  increase  productivity  and  profitability. We  intend  to  continue  our  efforts  to  reduce  operating  costs  and
increase productivity and profitability. To this end, we plan to improve the management of our assets, as well as continue reducing our total salary
and  payroll  expenses  by  decreasing  the  number  of  our  employees,  automating  some  of  our  operations,  streamlining  operational  processes,
implementing integrated planning and further investing in internal technological research and development. We are also continuing our efforts to
improve  our collection of overdue  accounts  receivable  from  municipalities  to  which  we  provide  water  on  a  wholesale  basis,  from  the State  and
from other governmental entities. We are actively pursuing the overdue amounts and in some cases exploring opportunities to trade these amounts
for rights and infrastructure to operate water and sewage systems.

Ensure the quality and availability of our services in our existing service area. Our goal is to maintain universal coverage of water services with a 
high standard of quality and availability. We intend to continue providing universal water services and meet population growth by adding 652,100
water connections by 2010 and to increase our Sewage Coverage Ratio to 84% by 2010. To ensure the quality and availability of our services, we 
also  intend  to  improve  customer  relations  by  shortening  response  times  for  customer  installations  as  well  as  through  a  focused  public  relations
program to enhance our image. In addition, we are also developing short, medium and long-term marketing strategies, such as client segmentation 
and tailor-made solutions for each type of client, which we believe will help us increase our customers’ base.  

Maintain our operating geographic base and expand the scope of our business. We intend to maintain our operating base through the execution of
new  agreements.  To  this  end,  we  are  also  seeking  to  develop  closer  relationships  with  the  municipal  governments  that  we  serve  to  increase
customer loyalty and thereby increase our revenues. In addition, pursuant to article 63 of Supplementary Law 1,025, we were permitted to expand
our  business,  including  the  possibility of providing  urban rainwater  management  and drainage services, urban  cleaning services  and solid waste
management  services,  in  addition  to  authorizing  the  planning,  operation  and  maintenance  of  energy  production,  storage,  conservation  and
commercialization systems for internal use as well as for third parties. In addition, the new rules simplified the process of the expanding operations
in  Brazil  and  abroad,  authorizing  us  to  (i)  participate  in  the  controlling  group  or  capital  of  other  companies,  (ii)  create  subsidiaries,  which  may
associate with other companies as both majority or minority shareholders, (iii) form consortiums with Brazilian and foreign companies, including
other  state  or  municipal  basic  sanitation  companies,  as  lead  company  or  otherwise,  with  the  objective  of  expanding  operations,  combining
technologies and expanding investments in basic sanitation services. 

New  business  platform.  Sabesp  Environmental  Solutions  program  is  a  new  business  platform  that  has  as  its  main  objectives  to  gain  customer
fidelity and expand our large industrial, commercial and residential customer base. The products and services are aimed at big customers who want
to benefit from our knowledge and technology in the sustainability, environmental preservation and water resource management fields.

Continue to expand our existing service areas and provide our services in other municipalities. Our goal is to expand our sewage collection and 
treatment services. A significant portion of our capital expenditure program, of approximately R$5.87 billion between 2007 and 2010, is designed
to  achieve  this  goal.  We  also  regularly  explore  the  possibility  of  executing  agreements  for  the  provision  of  water  and  sewage  services  in
municipalities of the State of São Paulo in  which we  currently have no operations or to which we currently supply water solely on a wholesale
basis,  representing  a  total  population  of  approximately  15.9  million.  We  evaluate  possible  expansion  opportunities  in  terms  of  proximity  to  our
existing service areas to maximize return on investment and improve our financial performance. We also intend to study, and take advantage of,
opportunities in other Brazilian states and in other countries to expand our services and increase our market share.  

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Continue to prudently manage our levels of indebtedness. Our total financial indebtedness decreased by 11%, from R$6,326.7 million in 2006 to
R$5,685.2 million in 2007. This drop was mainly due to the settlement of the 1st Series of our 6th debenture in the amount of R$ 231.8 million and
to the amortization of domestic financing installments. In addition, in the period, our total foreign denominated debt recorded a 15.6% drop, from
R$  1,472.7  million  to  R$  1,242.3  million,  as  a result  of  the  appreciation  of  the  real versus  the U.S.  dollar  and  the  amortization  of  international 
financing installments. Pursuant to our current capital expenditure program, we have budgeted investments in the amount of approximately R$5.87
billion  from  2007  through  2010.  This  capital  expenditure  program  is  most  likely  to  involve  an  increase  in  overall  indebtedness  during  the
forthcoming years of projected investments.  

Improve  operating  efficiency  and  reduce  water  losses.  We  seek  to  reduce  both  physical  water  losses  and  non-physical  water  losses.  To  obtain 
reductions that are more significant and more consistent over the long term, we began to structure based on the integration and expansion of our
existing activities. The program is currently involved in planning and prioritizing measures to be taken at individual locations. These measures are
prioritized in accordance with their location of application, with a focus on the municipalities and industries supplied that present the highest loss
rates, with the objective of optimizing the application of resources. A fundamental aspect of this program is to make significant efforts to renew
infrastructure in order to reduce physical water losses. We are also seeking to reduce physical water losses by continuing to shorten the average
time  for  the  detection  and  repair  of  leaks  in  the  system,  for  which  we  are  planning  the  implementation  of  measurement  and  control  districts  to
improve operational management. We are also seeking to reduce non-physical water losses by upgrading and replacing inaccurate water meters and
intensifying efforts involving irregularities in active and inactive connections.  

We believe that our overall strategy will enable us to meet the demand for high quality water and sewage services in the State  of São Paulo, in
other Brazilian states and abroad and, at the same time, bolster our results of operations and our financial condition and enhance shareholder value. 

State of São Paulo 

The State of São Paulo is one of 26 states that, together with the Federal District of Brasília, constitute the Federative Republic of Brazil. The State
of São Paulo is located in the southeastern region of the country, which is, according to IBGE, the most developed and economically active region
of Brazil, and which includes the States of Minas Gerais, Espírito Santo and Rio de Janeiro. The State of São Paulo lies between the States of Rio
de Janeiro and Minas Gerais to the north, the State of Paraná to the south, Mato Grosso do Sul to the west and the Atlantic Ocean to the east.  

The State of São Paulo occupies 3.0% of Brazil’s land mass and encompasses an area totaling approximately 96,000 square miles. According to the
State of São Paulo Data System (Fundação Sistema Estadual de Análises de Dados—SEADE), the State of São Paulo had an estimated population 
as of December 31, 2007 of 41.3 million.  

As of December 31, 2007, the City of São Paulo, the State of São Paulo’s capital, had an estimated population of 10.9 million, with 19.7 million 
inhabitants  in  the  greater  São  Paulo  Metropolitan  Region.  The  São  Paulo  Metropolitan  Region  encompasses  39  cities  and  is  the  second  largest
metropolitan  area  in  the  Americas  and  among  the  four  largest  metropolitan  areas  in  the  world,  according  to  the  United  Nations’  World
Urbanization Prospects, 2000 Revision. The São Paulo Metropolitan Region accounted for approximately 48% of the population of the State of São
Paulo as of December 31, 2007.  

According to IBGE, in 2005 , the most recent year for which this data is available, the GDP of the State of São Paulo was approximately R$ 727.1
billion, representing approximately 34% of Brazil’s total GDP, making it the largest economy of any state in Brazil, based on GDP. The State of
São  Paulo  is  the  leading  Brazilian  state  in  terms  of  manufacturing  and  industrial  activity,  also  according  to  IBGE,  with  a  strong  position  in  car
manufacturing, pharmaceuticals, computer production, steel making and plastics, among others, as well as the leading position in the banking and
financial  services  industries.  The  State  of  São  Paulo  is  the  most  important  exporting  state  in  Brazil,  according  to  the  Brazilian  Ministry  of
Development, Industry and Foreign Trade (Ministério do Desenvolvimento, Indústria e Comércio Exterior).  

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History 

Until the end of the 19th century, water and sewage services in the State of São Paulo were generally provided by private companies. In 1877, the
Province of São Paulo granted a concession for the provision of water and sewage services to Companhia Cantareira de Água e Esgotos. In 1893, 
the  Government  of  the  Province  of  São  Paulo  assumed  responsibility  for  the  provision  of  water  and  sewage  services  from  the  Companhia 
Cantareira  de Água e Esgotos  and  formed the Office of Water and Sewers  (Repartição de Água e Esgotos),  a  governmental agency. Since  that 
time, water and sewage services in the São Paulo Metropolitan Region have been administered by the State government. Historically, water and
sewage services in substantially all other municipalities of the State were administered by the municipalities directly either by municipal water and
sewage departments or through autarquias of the municipal government. Autarquias are relatively autonomous public bodies with separate legal 
standing,  assets  and  revenues,  created  by  law  to  undertake  administration  of  public  services,  which  are  considered  to  be  better  managed  by  a
decentralized administrative and financial structure.  

In 1954, in response to dramatic population growth in the São Paulo Metropolitan Region, the State government created the Department of Water
and Sewers (Departamento de Águas e Esgotos), as an autarquia of the State. The Department of Water and Sewers provided water and sewage
services to various municipalities in the São Paulo Metropolitan Region.  

A  major  restructuring  of  the  entities  providing  water  and  sewage  services  in  the  State  of  São  Paulo  occurred  in  1968  with  the  creation  of  the
Companhia  Metropolitana  de  Água  de  São  Paulo,  or  COMASP,  which  purpose  was  to  provide  potable  water  on  a  wholesale  basis  for  public
consumption in the municipalities making up the São Paulo Metropolitan Region. All assets relating to the production of potable water for the São
Paulo  Metropolitan  Region  previously  owned  by  the  Department  of  Water  and  Sewers  were  transferred  to  COMASP.  In  1970,  the
Superintendência de Água e Esgoto da Capital, or SAEC, was created by the State government to distribute water and collect sewage in the City of
São Paulo. All assets previously owned by the Department of Water and Sewers in connection with these activities were transferred to SAEC. Also
in 1970, the State created the Companhia Metropolitana de Saneamento de São Paulo, or SANESP, to provide sewage treatment services for the 
São  Paulo  Metropolitan  Region.  All  assets  previously  owned  by  the  Department  of  Water  and  Sewers  in  connection  with  those  activities  were
transferred to SANESP. The Department of Water and Sewers was subsequently closed.  

On June 29, 1973, COMASP, SAEC and SANESP merged to form our company with the purpose of implementing the directives of the Brazilian
government  set  forth  in  the  National  Water  Supply  and  Sanitation  Plan  (Plano  Nacional  de  Saneamento).  The  National  Water  Supply  and 
Sanitation Plan was a program sponsored by the Brazilian government, which financed capital investments in, and assisted in the development of,
state-controlled  water  and  sewage  companies.  Since  our  formation,  other  State  governmental  and  State-controlled  companies  involved  in  water
supply  and  sewage  collection  and  treatment  in  the  State  of  São  Paulo  have  been  merged  into  us.  As  set  forth  in  Article  2  of  our  by-laws,  our
corporate purpose is to plan, provide and operate basic sanitation services throughout the territory of the State of São Paulo, and sell these services
and  the  related  benefits  that  directly  or  indirectly  arise  in  connection  with  these  services.  Under  Article  63  of  Supplementary  Law  1,025  of
December  7,  2007,  we  were  permitted  to  expand  our  operational  scope  geographically  and  by  the  addition  of  new  types  of  services  related  to
environmental sanitation and energy. See “Item 4.B. Business Overview – Public Consortia Law and Cooperation Agreements”.

Corporate Organization 

In 2004, we reorganized our corporate management structure. As a result, we currently have six management divisions, each of which is supervised
by one of our executive officers.  

The  allocation  of responsibilities among  the executive  officers is made by  the  board of directors,  in  accordance  with the  by-laws and following 
receipt  of  an  initial  proposal  from  the  Chief  Executive  Officer.  The  Chief  Executive  Officer  is  responsible  for  coordinating  all  management
divisions  in  accordance  with  the  policies  and  directives  established  by  our  board  of  directors  and  board  of  executive  officers,  performing  the
coordination,  evaluation  and  control of  all  functions related to Chief Executive Officer’s office  and staff, strategic integrated planning, business 
management  and  organization  corporate  communication,  audit,  ombudsman,  new  businesses  and  concession  negotiation.  The  executive  officers
report to the Chief Executive Officer are: 

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  the  Corporate  Management  Officer,  who  is  responsible  for  marketing,  human  resources  and  quality  control  programs,  legal  affairs,

information technology, asset management, legal and procurement, and contracts. 

  the  Chief  Financial  Officer  and  Investor  Relations  Officer,  who  is  responsible  for  financial  planning,  raising  and  allocating  financial
resources to all divisions within the Company, conducting capital markets and other debt transactions and managing debt levels, control 
department, accounting, corporate governance and investor relations. 

  the Planning and Technology Officer, who is responsible for the integrated technical planning, environmental planning and management, 
technological development, management and control of water quality and effluents, strategic maintenance, integrated project management
and coordination and execution of special investment programs and projects. 

  the Chief Operating Officer of the São Paulo Metropolitan Region Division, who is responsible for managing the distribution of water and 
collection  of  sewage  for  the  São  Paulo  Metropolitan  Region.  The  main  function  of  the  Chief  Operating  Officer  of  the  São  Paulo 
Metropolitan Region Division is planning, operating and maintaining the water and sewage systems and customer relation services in the 
metropolitan regions, the provision of wholesale water supply and sewage treatment, and the operational control of its division. The Chief
Operating Officer of the São Paulo Metropolitan Region Division is also responsible for providing technical support to the autonomous 
municipalities, and intermediating and directly negotiating with local communities and municipalities in order to accommodate both the 
interests of the communities and our commercial interests. 

  the Chief Operating Officer of the Regional Systems Division, who is responsible for managing the operation, maintenance, execution of
planning  and  works  for  the  water  and  sewage  supply  systems,  sales  and  call  center  services,  as  well  as  the  operational  control  of  its 
division. The chief operating officer of the regional systems division is also responsible for sanitation advisory services to independent 
municipalities and for the mediation and the negotiation with communities and local governments, aiming at aligning our interests with 
the interests of our of clients.  

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Capital Expenditure Program

Our capital expenditure program is designed to improve and expand our water and sewage system and to increase and protect our water sources in
order to meet the growing demand for water and sewage services in the State of São Paulo. Our capital expenditure program has four specific goals
in  the  municipalities  we  serve:  (1)  to  continue  to  meet  the  maximum  demand  for  treated  water;  (2)  to  expand  the  percentage  of  households
connected to our sewage system; (3) to increase the treatment of sewage collected; and (4) to increase operating efficiency and reduce water losses. 

From  1998  through  2007,  our  capital  expenditure  program  totaled  R$7.3  billion,  primarily  to  build  up  our  infrastructure  and  for  our  efforts  to
reduce water losses. We have budgeted investments in the amount of approximately R$5.87 billion from 2007 through 2010. We invested R$678.2
million in 2005, R$904.9 million in 2006 and R$ 921.1 million in 2007. 

The following table sets forth our planned capital expenditures for water and sewage for the years indicated.  

Water 
Sewage 
Others 
         Total 

2007

336 
487 
137 
960 

2008

Forecast Capital Expenditures
2009
(in millions of reais)

2010

2007-2010

563 
907 
104 
1,574 

622  
824  
145  
1,591  

755  
814  
176  
1,745  

2,276 
3,032 
562 
5,870 

Our  capital  expenditure  program  from  2007  through  2010  will  continue  to  focus  on  achieving  our  targets  by  making  regular  investments  and
expanding our infrastructure as well as making investments in our program for the reduction of water losses throughout the 366 municipalities that
we serve. The following is a description of the main projects in our capital expenditure program.  

Metropolitan System Investment Program 

Metropolitan Water Program 

Demand for our water services has grown steadily over the years in the São Paulo Metropolitan Region and has exceeded at times the capacities of
our water systems. As a result, prior to September 1998, certain part of our customers in this region received water only on alternate days of the
week. We refer to this as “rotation.” In order to remedy this situation, we implemented the Metropolitan Water Project to improve regular water
supply to the entire São Paulo Metropolitan Region. This program terminated in 2000 and the rotation was eliminated, but we have maintained our
investment projections for the São Paulo Metropolitan Region. In 2005, 2006 and 2007, we invested R$75.0 million, R$53.0 million, and R$130.9
million respectively, in this region.  

Tietê Project 

The Tietê River crosses the São Paulo Metropolitan Region and receives most of the region’s run-off and wastewater. The environmental status of
the river reached a critical level in 1992. As a way of reversing the situation, the State of São Paulo created a recovery program designed to reduce
pollution  of  the  Tietê  River  by  installing  sewage  collection  lines  along  the  banks  of  the  Tietê  River  and  its  tributaries.  These  lines  collect  raw
sewage and deliver it to our sewage treatment facilities. We completed the first phase of the program during the years of 1992 and 1998.  

In connection with the first phase of the Tietê Project, in June 1998, we completed the construction of three additional sewage treatment facilities
and invested a total of US$1.1 billion, of which US$450.0 million was financed by the Inter-American Development Bank, US$100.0 million was 
financed by Caixa Econômica Federal and US$550.0 million was funded by us. 

We are currently in the second phase of the Tietê Project, for which we budgeted for additional capital expenditures of approximately US$500.0
million from 2000 through 2008, US$200.0 million of which is financed by the Inter-American Development Bank. We have also entered into a
loan  agreement  and  an  on-lending  agreement  with  the  Brazilian  National  Bank  for  Social  and  Economic  Development  (Banco  Nacional  de
Desenvolvimento  Econômico  e  Social),  or  BNDES,  for  R$60.0  million  and  R$180.0  million,  respectively,  to  finance  this  second  phase.  As  of
December 31, 2007, we had invested US$436.0 million in this phase of the Tietê Project.  

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The main objective of this second phase is the continuity of the expansion and optimization of the sewage systems of the São Paulo Metropolitan
Region, primarily focusing on actions that allow the destination of a higher volume of raw sewage to the sewage treatment facilities that were built
in the first phase of the Tietê Project.  

As part of the second phase of the Tietê Project, we implemented the geographic information system named SIGNOS. SIGNOS is a management
information  system  which  automates  and  integrates  various  business  processes,  including  project  management,  maintenance,  operations  and
customer  service  and  maps  out  our  entire  municipal  infrastructure  in  the  São  Paulo  Metropolitan  Region.  In  addition,  this  phase  included  the
undertaking  of  a  project  aimed  at  evaluating  and  potentially  revising  our  current  tariff  structure  in  order  to  cover  the  systems  operation  and
maintenance costs and appropriately remunerate current and future investments. This project is also financed by our loan with the Inter-American 
Development Bank. 

As  of  December  31,  2007,  we  owed  US$249.7  million  to  the  Inter-American  Development  Bank  for  the  financing  it  provided.  For  further
information  on  the  agreement  entered  into  with  the  Inter-American  Development  Bank,  see  “Item  5.B.—  Operating  and  Financial  Review  and
Prospects  -  Liquidity  and  Capital  Resources—Capital  Sources.”  We  now  provide  secondary  treatment  to  approximately  62%  of  the  sewage
collected  in  the  São  Paulo  Metropolitan  Region.  The  five  principal  sewage  treatment  facilities  in  the  São  Paulo  Metropolitan  Region  have  an
aggregate installed capacity of 18 cubic meters of sewage per second and currently treat an aggregate of 13 cubic meters of sewage per second.
Currently, raw sewage is delivered to our secondary treatment facilities along the Tietê River and the Tamanduateí River before treated sewage is
discharged into those rivers. We plan to build additional collection lines to direct more raw sewage to our treatment facilities.  

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Alto Tietê Public Private Partnership (PPP) 

In June 2008 we entered into a Public Private Partnership, or PPP, with Cab Spat, a special purpose company whose main shareholders are Cab
Ambiental and Galvão Engenharia. Cab Spat will be responsible for (i) expansion of Taiaçupeba Water Treatment Plant capacity from 10 cubic
meters  per  second  to  15  cubic  meters  per  second,  (ii)  construction  of  17.7  kilometers  of  water  network  and  mains,  (iii)  construction  of  4  water
storage tanks with total capacity of 70,000 cubic meters, (iv) installation of boosters, and (v) construction of pumping stations. The total capital
expenditure  for  these  investments  will  amount  to  approximately  R$300  million.  Cab  Spat  will  also  provide  dams,  civil  works  and
electromechanical  maintenance;  operation  services  such  as  sludge  treatment  and  complementary  services  of  water  transmission  and  supply.  The
total amount expected to be paid by us at the end of this 15 year contract is approximately R$1.3 billion, including services and investments. 

Corporate Water Loss Reduction Program

In the second semester of 2007 we started to structure a Corporate Water Loss Reduction Program, with a ten-year span. The aim of this program is 
to obtain more consistent and faster reduction of water losses, through the integration and expansion of our existing loss reduction programs and
through the assuring of the availability of funds and technology.  

Water Source Program 

The objective of this program is the promotion of urban development and social inclusion to mitigate the pollution problems in all water reservoir
systems  of  the  São  Paulo  Metropolitan  Region.  In  this  program  we  will  be  responsible  for  the  expansion  of  sewage  systems,  pre-treatment  of
streams  and  development  of  more  sophisticated  treatment  facilities.  We  expect  to  launch  this  program  in  2008  with  the  conclusion foreseen  for
2013.  The  total  expected  investment  of  this  program  is  US$281.8  million  and  will  be  carried  out  with  resources  from  the  World  Bank  and
participant matching funds. Our participation in this Program is US$125.0 million.  

Clean Stream Program

This  program  is  a  partnership  between  the  State  Government,  through  Sabesp,  and  the  municipality  of  São  Paulo,  which  aims  at  cleaning  and
revitalizing the main municipal streams in a two-year period, with investments of approximately R$200 million. The aim of this program is the
improvement  of  the  sanitary  sewage  system  and  the  clean-up  of  the  surrounding  area  of  streams,  which  will  benefit  approximately  2.4  million
people.  Of  the  42  major  streams  selected  in  this  first  stage,  12  have  already  been  cleaned.  Our  participation  in  this  Program  is  approximately
R$177.0 million.  

Regional Systems Investment Programs 

We currently have a number of projects in progress and planned for the Regional Systems, including projects relating to abstraction of water and
collection, removal and final disposal of sewage. We spent R$222.0 million, R$331.2 million and R$381.3 million on these projects in 2005, 2006
and  2007,  respectively,  and  we  have  budgeted  for  additional  capital  expenditures  of  approximately  R$2.4  billion  from  2007  through  2010.
Following are the major programs 

Environmental Recovery Program for the Baixada Santista Metropolitan Region – “Programa Onda Limpa” 

On  August  6,  2004,  we  entered  into  a  credit  agreement  with  Japan  Bank  for  International  Cooperation,  or  JBIC,  for  the  financing  of  the
Environmental Recovery Program for the Baixada Santista Metropolitan Region, which was guaranteed by the Federative Republic of Brazil, for a
total  amount  of  R$382.8  million.  For  further  information  on  the  agreement  entered  into  with  the  JBIC,  see  “Item  5.B.  Operating  and  Financial
Review  and  Prospects—Liquidity  and  Capital  Resources—Capital  Sources.”  The  total  investment  to  be  made  with  respect  to  this  project  for
sewage systems is approximately R$1.2 billion and the balance will be our responsibility, for which we will seek further financial support from
local and international public banks and agencies. The first disbursements under this agreement began in August 2005 with the commencement of
the  management  agreement.  The  construction  works  began  in  the  second  quarter  of  2007.  The  main  goals  of  this  program  are  to  improve  and
expand  the  water  and  sewage  systems  in  the  municipalities  comprising  the  Santos  Metropolitan  Region.  As  of  December  2007,  the  total
disbursements for this program reached R$57 million.  

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Mambu/Branco Water Production System

This  program  seeks  to  increase  and  improve  the  Mambu/Branco  Water  Production  System,  which  will  make  possible  the  expansion  of  water
production to supply municipalities in the Southern Baixada Santista Region, increasing production  by 1.0 m³/s and treatment by 1.6 m³/s,. The 
total investment on the project is approximately R$336.9 million, of which R$241.2 million involves funds from Caixa Econômica Federal (CEF)
and the remainder under the responsibility of Sabesp. Construction works of the project are expected to start in the second half of 2008.  

Research and Development 

Our policy is to invest continually in the modernization of equipment and in the technology needed to identify, evaluate and improve our provision
of  basic  sanitation  services  while  promoting  environmental  protection  and  maintaining  our  competitiveness  and  profitability.  Our  research  and
development function is divided into committees according to strategy and complexity. In 2005, 2006 and 2007, we spent R$4.7 million, R$4.9
million and R$3.4 million, respectively, on research and development. We have also partnered with several research institutions.

4.B. Business Overview 

Our Operations 

We provide water and sewage services to 366 municipalities in the State of São Paulo either under concession contracts or under another form of
legal arrangement. We also provide water services on a wholesale basis.  

Because  of  the  enactment  of  new  legislation  regarding  basic  sanitation  in  Brazil,  Law  No.  11,445/07,  we  currently  operate  under  two  different
contractual environments: (1) for the concession contracts that have already expired, we will negotiate a new contract model that follows the terms
and conditions of the new legislation, and (2) for the concession contracts that have not expired, we will continue to operate under the terms and
conditions  of  the  previous  concession  contracts,  except  in  circumstances  where  the  new  legislation  is  automatically  applicable.  For  further
information on this topic, see “— The Basic Sanitation Law - Public Consortia Law and Cooperation Agreements.”

The new basic sanitation legislation, Law No. 11,445/07, establishes the date of December 31, 2010 as the deadline for water and sewage services
companies, such as us, to establish a formal contract with municipalities with whom we do not currently have one in place.  

Concessions 

Under  the  Brazilian  Constitution,  the  authority to  develop  public  water  and  sewage  systems  is  shared  by  the  states  and  municipalities,  with  the
municipalities having primary responsibility for providing water and sewage services to their residents. The Constitution of the State of São Paulo
provides that the State shall assure the correct operation, necessary expansion and efficient administration of water and sewage services in the State
of São Paulo by a company under its control.  

Under the terms of the new basic sanitation law, Law No. 11,445/07, existing concessions will remain in effect until payment of compensation is
made based on the valuation of investments. The new law provides that our new concession contracts be planned, overseen and regulated by the
municipalities together with the State under a new model of associated management that will allow for better control, supervision, transparency and
efficiency in the provision of public services. 

At the end of 2007 we were a provider of water and sewage services to 366 municipalities, although, due to judicial orders, we had temporarily
stopped operating three of them (Araçoiaba da Serra, Cajobi e Monte Alto). We have recently resumed providing service to Monte Alto. As for the
other  two  municipalities  (Araçoiaba  da  Serra  and  Cajobi)  we  are  still  in  litigation.  Even  if  we  cannot  resume  providing  services  to  these
municipalities, there will be no major impact on us as: i) revenue from these operations account for less than 0.2% of our total revenues, and ii) we
will continue to be entitled to indemnities related to the assets invested in these municipalities and not yet amortized.  

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Substantially all of these concessions have 30-year terms. As of December 31, 2007, we had 106 program contracts in place. In December 2008,
104 concession contracts will expire or be under negotiation with the municipalities. Between 2009 and 2034, 117 concession contracts will expire.
The remaining concession contracts have no expiration date. Some of the expired concession contracts have been extended for a short term while
we negotiate the terms and conditions of the termination of the previous contract and the terms and conditions for the new contract. Despite the
expiration of the contracts, we continue to provide water and sewage services to all municipalities. 

In February 2006, we created a new division to manage the renewal of expiring concessions. The main responsibility of this division, which reports
directly to the Chief Executive Officer, is to renew and thus maintain the existing base of municipalities that we currently operate and formalize
contracts under the new model of associated management.  

The  current  concessions  are  based  on  a  standard  form  of  contract  between  us  and  the  relevant  municipality.  Each  contract  received  the  prior
approval of the legislative council of each municipality. The principal terms of the concession contracts were as follows:  

  We assume all responsibility for providing water and sewage services in the municipality; 

  According to the municipal laws that authorized these concessions, we could collect the tariffs for our services without prior authorization 
of the municipality. The readjustment of our tariff will follow the parameters established by Federal Law No. 11,445/07 as well as the new 
state regulatory authority created ARSESP; 

  The  assets  comprising  the  existing  municipal  water  and  sewage  systems  are  transferred  from  the  municipality  to  us.  Until  1998,  we
acquired municipal concessions and the existing water and sewage assets in exchange for our common shares issued at book value. Since 
1998, we have acquired concessions and water and sewage assets by paying the municipality an amount equal to the present value of 30 
years of estimated cash-flows, assuming at least a 12.0% discount factor to us, from the concession being acquired. Payment is made in 
cash; 

  As  a  general  rule,  to  date  we  are  exempt  from  municipal  taxes,  and  no  royalty  is  payable  to  the  municipality  with  respect  to  the

concession; 

  We are granted rights of way on municipal property for the installation of water pipes and mains and sewer lines; and 

  Upon  termination  of  the  concession,  or  upon  cancellation  for  any  reason,  we  are  required  to  return  the  assets  comprising  the 
municipality’s water and sewage system to the municipality and the municipality is required to pay us the non-amortized book value of
our assets relating to the concession.  

Under concession contracts executed prior to 1998, the reimbursement for these assets may be through payment of either:  

  the book value of the assets; or 

  the market value of the assets as determined by a third-party appraiser in accordance with the terms of the specific contract. 

Concession contracts we have entered into since 1998 provide that after a period of 30 years from the commencement of the concession, the total
value of the concession and assets will be amortized to zero on our books and we receive no payment for the assets. If the concession is terminated
prior  to  the  end  of  the  30-year  period,  we  are  paid  an  amount  equal  to  the  present  value  of  the  cash-flow  from  the  concession  over  the  years 
remaining in the concession, using the same assumptions used to determine the value of the concession at its inception (adjusted for inflation).  

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Following  the  enactment  of  the  Concessions  Law  (Law  No.  8,987/95)  and  of  the  Consortium  Law  (Law  No.  11,107/05),  the  new  contracts  are
adopting  the  new  regime.  This  new  regime  gives  municipalities  a  greater  role  and  sets  out  more  clearly  the  provision  of  services  and  the
responsibilities  of  the  parties.  Therefore,  all  new  contracts  acquired  by  us  and  the  new  contracts  to  be  executed  after  the  expiration  of  the
concessions will follow this new contract model. See “—Government Regulation—Public Consortia Law and Cooperation Agreements.”

Our new contract model follows the provisions of the newly enacted Law No. 11,445/07. The main contractual provisions are: joint execution of
responsibilities related to planning, supervision and regulation of services, appointment of regulatory authority of services and periodic disclosure
of accounts, among others.  

Furthermore,  the  economic  and  financial  equations  in  new  contracts  must  be  based  on  discounted  cash  flow  methodology  and  on  the
reclassification of returnable assets as our own preexisting assets with any assets related to new investments considered in our possession, which
may use and manage this asset. 

According  to  Article  42  of  the  new  basic  sanitation  law,  investments  made  during  the  contractual  period  are  the  property  of  the  applicable
Municipality,  which  in  turn  generates  receivables  for  us  that  are  to  be  recovered  through  the  commercial  operation  of  services,  and  these
receivables may also be used as guarantees in funding operations. 

Another important development was that the negotiations included exemptions from municipal taxes applicable on our operational areas and the
possibility of the revaluation of our assets that existed prior to the applicable new contracts in cases involving the early resumption of services by
the concession authority.  

Municipalities have the inherent power under Brazilian law to terminate concessions prior to their contractual expiration dates for reasons of public
interest.  The  municipalities  of  Diadema  and  Mauá,  two  municipalities  we  previously  served,  terminated  our  concessions  in  February  1995  and
December 1995, respectively. The municipality of Diadema terminated our concession after asserting that we did not provide adequate water and
sewage  services,  while  the  municipality  of  Mauá  did  so  with  our  consent.  However,  we  currently  serve  both  municipalities  through  the  sale  of
water on a wholesale basis.

We  currently  do  not  anticipate  that  other  municipalities  will  seek  to  terminate  concessions  due  to  our  close  relationship  with  municipal
governments, recent improvements in the water and sewage services we provide and the obligation of the municipality to repay us for the return of
the  concession  as  described  above.  We  cannot  be  certain,  however,  that  other  municipalities  will  not  seek  to  terminate  their  concessions  in  the
future.  

In  addition,  there  is  currently  ongoing  litigation  with  respect  to  municipalities  that  intend  to  expropriate  our  water  and  sewage  systems  or  to
terminate  concession  contracts  prior  to  paying  us  any  indemnification.  For  example,  among  others,  we  have  pending  proceedings  with  the
municipalities of  Santos,  Sandovalina,  Presidente Prudente  and Itapira. For a  detailed  discussion  on  these  proceedings, see  “Item 8.A. Financial
Information—Consolidated Statements and other Information—Legal Proceedings—Other Legal Proceedings.”  

Operations in the São Paulo Metropolitan Region and in Other Metropolitan Regions

We do not hold a formal concession to provide water and sewage services to the City of São Paulo, which accounts for 56.3% of our revenue, and
to 36 other municipalities in the State of São Paulo. None of these other municipalities has a significant population, other than the municipality of
Santos,  which  has  a  population  of  approximately  428,000.  We  believe  that  we  have  a  vested  and  exclusive  right  to  provide  water  and  sewage
services to the City of São Paulo and these other municipalities based, in some cases, upon a deed (escritura pública) and also, among other things, 
based on our ownership of the water and sewage systems serving the City of São Paulo and these other municipalities and certain succession rights
resulting from the merger that formed us.  

The new basic sanitation law, provides that, in case of termination of the relationship with the aforementioned municipalities with which we have
not entered into a concession contract, an indemnification should be paid by the municipalities to us, in amounts to be calculated by studies and
appraisals. 

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On  November  14,  2007,  the  Company  and  the  Municipality  of  São  Paulo  entered  into  an  Agreement  to  establish  the  conditions  that  ensure  the
stability  in  the  provision,  of  water  supply  and  sewage,  and  environmental  utility  services  in  the  city  of  São  Paulo,  see  note  23  to  our  financial
statements.  

Wholesale Operations 

We provide wholesale water services to six municipalities, including the municipalities of Diadema and Mauá. In addition, until December 2003
we provided wholesale water services to the municipality of São Bernardo do Campo. In December 2003, we acquired water and sewage service
assets in this municipality through the transfer of all related assets from the municipality to us. The amount paid for the purchase of assets was
estimated by an economic-financial valuation report to be approximately R$415.5 million, which included the liquidation of the water wholesale
supply  accumulated  debt  totaling  approximately  R$265.4 million. The  difference  between  the value  of  the  assets and  the accumulated  debt  was
paid by us in cash to the municipality. Accordingly, we started providing water and sewage services to the municipality of São Bernardo do Campo
beginning in January 2004.

Execution of Sewage Services Agreements with Municipalities 

We provide wholesale sewage services to the municipalities of Mogi das Cruzes, Santo André, São Caetano, Mauá and Diadema. The negotiation
of  the  agreement  for  the  provision  of  wholesale  sewage  services  with  the  municipality  of  Santo  André  had  the  intervention  of  the  Public
Prosecution Office, and in other municipalities it was a result of our efforts concerning the environment and the awareness of the municipal public
authorities related to environmental issues. Through these agreements, in 2007 we treated about 2.9 million cubic meters of sewage per month from
these  municipalities.  This  is  an  example  of  our  social-environmental  responsibility  and  commitment.  In  2007,  the  revenues  from  these  services
were approximately R$8.0 million.  

Description of Our Activities 

As set forth in Article 2 of our by-laws, our corporate purpose is to plan, provide and operate basic sanitation services throughout the territory of
the  State  of  São  Paulo,  and  sell  these  services  and  the  related  benefits  that  directly  or  indirectly  arise  in  connection  with  these  services.  Under
Article 63 of Supplementary Law 1,025 of December 7, 2007, we were permitted to expand our operational scope geographically and to add new
types  of  services  related  to  environmental  sanitation  and  energy.  See  “Item  4.B.  Business  Overview  –  Public  Consortia  Law  and  Cooperation 
Agreements”.

Water Operations 

Our  supply  of  water  to  our  customers  generally  involves  abstraction  of  water  from  various  sources,  subsequent  treatment  and  distribution  to
customers’ premises. In 2007, we produced approximately 2,873.7 million cubic meters of water. The São Paulo Metropolitan Region currently is,
and has historically been, our core market, accounting for approximately 72% of water invoiced by volume in 2007.  

The following table sets forth the volume of water that we produced and invoiced for the periods indicated. 

Produced
   São Paulo Metropolitan Region 
   Regional Systems 
       Total
Invoiced
   São Paulo Metropolitan Region 
   Wholesale 
   Regional Systems 
       Total

2005

Year ended
December 31,
2006
(in millions of cubic meters)

2007

2,088.9 
741.2 
2,830.1 

997.8 
258.7 
502.4 
1,758.9 

2,134.8  
752.0  
2,886.8  

1,030.8  
263.4  
513.0  
1,807.2  

2,115.0 
758.7 
2,873.7 

1,046.8 
274.3 
525.9 
1,847.0 

33 

The difference between the volume of water produced and the volume of water invoiced generally represents both physical and non-physical water
loss. See “—Water Resources—Water Losses.” In addition, we do not invoice:  

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  water discharged for periodic maintenance of water mains and water storage tanks; 

  water supplied for municipal uses such as firefighting; 

  water consumed in our own facilities; and 

  estimated water losses associated with water we supply to favelas (shantytowns).  

The São Paulo Metropolitan Region experiences its highest levels of water demand during the summer months when water use increases. Water
use generally decreases during the winter months. The summer months, when demand is highest, coincide with the rainy season, while the winter,
when demand for water is lowest, corresponds to the dry season in the São Paulo Metropolitan Region. Demand within the Regional Systems will
vary depending on the area; while the interior region experiences seasonality in demand similar to the São Paulo Metropolitan Region, the demand
in the coastal region is chiefly a function of tourism, with the greatest demand occurring during the Brazilian summer holiday months.  

The following table provides information on our revenues by geographic region:  

São Paulo Metropolitan Region 
Regional Systems 
Total revenue from sales and services 

Water Resources 

2005

Year ended December 31,
2006
(in millions of reais)
4,534.1  
1,449.9  
5,984.0  

4,044.2 
1,312.1 
5,356.3 

2007

4,888.1 
1,560.1 
6,448.2 

We can abstract water only to the extent permitted by the State Department of Water and Energy and pursuant to authorization contracts entered
into with it. Under some circumstances, depending on the geographic location of the relevant river basin or reservoir, the approval of the National
Water Agency (Agência Nacional de Águas), or ANA, is also required. We currently abstract substantially all of our water supply from rivers and
reservoirs,  with  a  small  portion  being  abstracted  from  groundwater.  Our  reservoirs  are  filled  by  impounding  water  from  rivers  and  streams,  by
diverting flow from nearby rivers, or by a combination of these sources.  

In order to supply water to the São Paulo Metropolitan Region, we rely on 20 reservoirs of non treated water and 182 reservoirs of treated water,
which are located in the areas under the influence of the eight water producing systems which comprise the interconnected water system of the São
Paulo Metropolitan Region. Resource availability, or volume of water available at the source for public distribution in these areas, is 71.6 cubic
meters per second, due to the conclusion of the barriers of the Alto Tietê system. Total current capacity, or volume of water that can be treated from
the interconnected water system of the São Paulo Metropolitan Region, is 67.0 cubic meters per second and has been designed to reach 75.2 cubic
meters  per  second  in  2009.  Average  verified  production  or  volume  treated  during  2007  on  the  interconnected  water  system  of  the  São  Paulo
Metropolitan Region was 65.7 cubic meters per second. The Cantareira, Guarapiranga and Alto Tietê systems, as a whole, supply approximately
83.9% of the water we produced for the São Paulo Metropolitan Region in 2007.  

The  Cantareira  system  accounts  for  approximately  47.2%  of  the  water  that  we  provided  to  the  São  Paulo  Metropolitan  Region  (including  the
municipalities to which we provide water on a wholesale basis), which represented 75.8% of our operating revenue for 2007. The authorization
(outorga) for the Cantareira system to use the water in the Piracicaba water basin was renewed on August 6, 2004 for a period of ten years.

34 

With respect to water usage, federal and state agencies are authorized to collect charges from entities, such as us, for the abstraction of water from,
or dumping of sewage into, water recourses. Since February 2004 we have been incurring expenses in connection with the use of water from the
Paraíba do Sul River Basin and since January 2006 from the Piracicaba, Capivari and Jundiaí River Basin. Our tariff readjustment formula takes
into consideration the variation of expenses considered as “non-administrable,” which these expenses fall under. We expect to continue to be able 
to  pass  on  these  expenses  to  our  customers.  However,  we  are  uncertain  as  to  the  likely  charges  that  may  be  assessed  in  connection  with  the
abstraction of water from or the dumping of sewage into other water resources that we use, or whether we will be able to continue to pass on the
cost of all of these charges to our customers. For more information on water usage regulation, see “—Water Usage.”

The following table sets forth the water production systems from which we produce water for the São Paulo Metropolitan Region: 

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System
Cantareira 
Guarapiranga 
Alto Tietê 
Rio Claro 
Rio Grande (Billings reservoir)
Alto Cotia 
Baixo Cotia 
Ribeirão da Estiva 
Total production rate 
____________________ 
(1) Average of the twelve months ended December 31, 2007. 

Production
rate(1) (in
cubic meters
per second)

31.0 
13.8 
10.3 
3.8 
4.8 
1.0 
0.9 
0.1 
65.7 

We own all of the reservoirs in our production systems other than the Guarapiranga and Billings reservoirs and a portion of some of the reservoirs
of the Alto Tietê system, which is owned by other companies controlled by the State. We currently do not pay any charges with respect to the use
of these reservoirs. In December 2001, we entered into an agreement with the State whereby the State, among other things, agreed to transfer the
remaining reservoirs in the  Alto Tietê system  to us.  However, the  transfer of these reservoirs is currently being disputed and we are not certain
whether  this  transfer  will  be  legally  allowed.  See  “Item  8.A.  Financial  Information—Consolidated  Statements  and  other  Information——Legal
Proceedings—Other Legal Proceedings.”

In  the  largest  municipalities  of  the  interior  region,  our  principal  source  of  water  consists  of  surface  water  from  nearby  rivers.  In  the  smaller
municipalities of the interior region, we draw water primarily from wells. The coastal region is provided with water principally by surface water
from rivers and mountain springs.  

Statewide, we estimate that we are able to supply nearly all of the demand for water in all of the areas where we operate, subject to droughts and
extraordinary climate events. We were able to meet the demand for water in the São Paulo Metropolitan Region, primarily as a result of our water
conservation program, reductions in water loss, and the installation of new water connections. In 2006, we installed 156,139 new water connections
and in 2007 we installed 173,739 new water connections. 

The interconnected water system of the São Paulo Metropolitan Region services 30 municipalities, of which 24 are operated directly by us. We
serve  the  other  six  municipalities  on  a  wholesale  basis,  and  the  distribution  is  made  by  other  companies  or  departments  related  to  the  relevant
municipality. 

In order to reach the final customer, the water is stored and transported through a complex and interconnected system comprising 31,136 kilometers
of  water  mains  and  182  reservoirs.  This  water  system  requires  permanent  operational  supervision,  engineering  inspection,  maintenance,  quality
monitoring and measurement control.  

To ensure the continued provision of regular water supply in the São Paulo Metropolitan Region, we intend to invest R$1.2 billion from the years 
2007  until  2010  to  increase  our  water  production  and  distribution  capacities  as  well  as  to  improve  the  water  supply  systems.  In  2007,  total
investment in water amounted to R$288,6 million.  

Water  Treatment. We  treat  all  water  at  our  water  treatment  facilities  prior  to  placing  it  into  our  water  distribution  network.  We  operate  198
treatment  facilities,  of  which  the  eight  largest,  located  in  the  São  Paulo  Metropolitan  Region,  account  for  approximately  72%  of  all  water  we
produce. The type of treatment used depends on the nature of the source and quality of the untreated water. Water abstracted from rivers requires
extensive  treatment,  while  water  drawn  from  groundwater  sources  requires  less  treatment.  All  water  treated  by  us  also  receives  fluoridation
treatment.  

35 

 
 
 
 
 
 
 
 
 
Water  Distribution. We  distribute  through  our  own  networks  of  water  pipes  and  mains,  ranging  in  size  from  2.5  meters  to  100  millimeters  in
diameter.  Storage  tanks  and  pumping  stations  regulate  the  volume  of  water  flowing  through  the  networks  to  maintain  adequate  pressure  and
continuous water supply. As of December 31, 2007, our water network contained 62,318 kilometers of water pipes and mains and 6.8 million water
connections. The following table sets forth the total number of kilometers of water pipes in our network for the periods indicated.  

Table of Contents

Water distribution pipes and mains (kilometers)
Number of connections (in thousands)

As of
December 31,
2006

61,469  
6,609  

2005

58,000 
6,489 

2007

62,318 
6,767 

More  than  90% of  the  water  pipes  in  our  water  distribution  network  are  made  of  cast  iron  or  polyvinylchloride  (PVC).  Distribution  pipes  at
customers’ residences typically are made from high-density polyethylene tubing. Our water mains are mostly made of steel, cast iron or concrete.  

As of December 31, 2007, our water distribution pipes and mains included:  

  31,136 kilometers in the São Paulo Metropolitan Region; and 

  31,182 kilometers in the Regional Systems.  

We have 373 storage tanks in the São Paulo Metropolitan Region with a total capacity of 1.8 million cubic meters, and 1,650 storage tanks in the
Regional  Systems.  We  have  122  treated  water  pumping  stations  in  the  São  Paulo  Metropolitan  Region  aqueduct  system,  including  stations  at
treatment facilities, intermediate trunk transfer pumping stations and small booster stations serving local areas. 

Water mains that require maintenance are cleaned and relined. We are typically notified of water main fractures or breaks by the public through a
toll-free number maintained by us. We consider the condition of the water pipes and mains in the São Paulo Metropolitan Region generally to be
adequate. Due to age, external factors such as traffic, the dense population and commercial and industrial development, water pipes and mains in
the São Paulo Metropolitan Region are somewhat more susceptible to degradation than those in the Regional Systems. To counteract these effects,
we have a maintenance program in place for water pipes and mains that is intended to deal with anticipated fractures and clogs due to brittleness
and encrustation and to help ensure water quality.  

We  expect  that  new  customers  will  be  responsible  for  covering  part  of  the  costs  of  connecting  to  our  water  distribution  network.  Our  water
connection policy is to pay for the cost of installation of up to 15 meters of pipe from our distribution network to the point of connection, with the 
remainder  paid  by  the  customer.  Thereafter,  the  customer  must  cover  the  costs  of  connecting  to  the  network  from  the  customer’s  residence, 
including  costs  of  purchasing  and  installing  the  water  meter  and  related  labor  costs.  Industrial  customers  are  responsible  for  the  entire  cost  of
connection. We perform the installation of the water meter and conduct periodical inspections and measurements. After completion of installation,
the customer is responsible for the water meter.  

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The following table sets forth projected new water connections for the periods indicated.  

São Paulo Metropolitan Region 
Regional Systems 
Total System 

2007

2008

2009

2010

2007-2010

Forecast

Actual

(in thousands)

86.7 
62.1 
148.8 

108.4 
65.3 
173.7 

96.9 
70.0 
166.9 

89.3  
75.0  
164.3  

87.6 
84.4 
172.0 

360.5 
291.6 
652.1 

Water Losses. The difference between the amount of water produced and the amount of water invoiced generally represents both physical and non-
physical water losses. Water loss percentage represents the quotient of (1) the difference between (a) the total amount of water produced by us less
(b) the total amount of water invoiced by us to customers minus (c) the volume of water set out below that we exclude from our calculation of
water losses, divided by (2) the total amount of water produced by us. We exclude the following from our calculation of water losses: (1) water
discharged for periodic maintenance of water mains and water storage tanks; (2) water supplied for municipal uses such as firefighting; (3) water
we consume in our facilities; and (4) estimated water losses associated with water we supply to favelas (shantytowns).  

Since 2005, we have established a new method of measuring our water losses, based on worldwide market practice for the sector. According to this
new measurement method, average water losses are calculated by dividing (1) average annual water loss by (2) the average number of active water
connections multiplied by 365. The result of this calculation is the liters of water lost per connection per day.  

Using  this  calculation  method,  as  of  December  31,  2007,  we  experienced  553  liters/connections  per  day  of  water  losses  in  the  São  Paulo
Metropolitan  Region  and  339  liters/connections  per  day  in  the  Regional  Systems,  averaging  467  liters/connections  per  day.  We  plan  to  reduce
water losses  in both regions to 420 liters/connections per  day  for the  São  Paulo Metropolitan  Region  and  284  liters/connections  per day for  the
Regional Systems, which we expect will result in a total reduction to 364 liters/connections per day by 2010. Based on water loss percentage (see
footnote 7 Item 3. A), we intend to reduce water losses from 29.8% to 24% in the São Paulo Metropolitan Region, and from 28.9% to 25% in the
Regional Systems. In 2007, we experienced 29.5% in water losses and we expect to decrease the water losses to 24% in 2010. 

Our strategy to reduce water loss will be carried out by a two-step process:  

  reduction in the level of physical losses, which result mainly from leakage, primarily through the replacement and repair of water mains 

and pipes and installation of probing and other equipment, including strategically located pressure-regulating valves; and 

  reduction of non-physical losses, which result primarily from the inaccuracy of our water meters installed at our customers’ premises and 
at  our  water  treatment  facilities,  and  from  clandestine  and  illegal  use,  through  upgrading  and  replacing  inaccurate  water  meters  and 
expanding our personnel who work on anti-fraud actions.  

We are taking measures to decrease physical losses by reducing response times for fixing leakages to less than 24 hours and by better monitoring
non-visible water mains fractures. Among other measures we have adopted to reduce physical water losses are:  

  the  introduction  of  technically  advanced  valves  to  regulate  water  pressure  throughout  the  water  mains  to  correspond  to  downstream
consumption  needs  each  day.  These  valves  are  programmed  to  respond  automatically  to  variations  in  demand.  During  peak  usage,  the
flow of water in the pipes is at its highest point; however, when demand decreases, pressure builds up in the water mains and the resulting 
stress on the network can cause significant water loss through cracks and an increase in ruptures of the pipes. The intelligent valves are 
equipped with probes programmed to feed data to the valve to reduce or increase pressure to the water mains as water usage fluctuates. As 
of  December  31,  2007,  we  had  installed  1,595  valves  at  strategic  points  in  the  network,  with  985  valves  installed  in  the  São  Paulo 
Metropolitan Region and 610 in the Regional Systems. We plan to install 142 additional valves by the end of 2008;  

37 

  the reconfiguration of interconnected water distribution to permit the distribution of water at lower pressure; 

  the implementation of routine operational leak detection surveys in high water pressure areas in each case helping to reduce overall water

losses; 

  the monitoring of and improved accounting with respect to water connections, especially for large volume customers, regular checking on 
inactive customers and monitoring non-residential customers that are accounted for as residential customers and, therefore, are billed at a 
lower rate; 

  fighting of fraud with the use of new, more sophisticated water meters that are more accurate and less prone to tampering; 

Table of Contents

  installation of water meters where none are present; and 

  preventive maintenance of existing and newly installed water meters.  

Water Quality. We believe that we supply high quality treated water that is consistent with standards set by Brazilian law, which requirements are
similar  to  the  standards  set  in  the  United  States  and  Europe.  Under  a  Health  Ministry  (Ministério  da  Saúde)  regulation  in  Brazil,  we  have 
significant statutory obligations regarding the quality of treated water. These laws set certain standards that govern water quality. 

In  general,  the  State  of  São  Paulo  has  excellent  quality  water  from  underground  or  superficial  water  sources.  However,  urbanization  and
disorganized occupation of some areas of the São Paulo Metropolitan Region ended up reducing the quantity of water in mains in the southern area
of the São Paulo Metropolitan Region and in the coastal region. Currently, we successfully treat this water to make it potable. We also work to
recover the quality of water of mains and invest in improvements of our treatment systems to guarantee the quality and availability of water in the
next years.  

Water quality is monitored in all stages of the distribution process, including at the water sources, water treatment facilities and on the distribution
network.  We  have  15  regional  laboratories,  one  central  laboratory,  and  laboratories  located  in  all  water  treatment  facilities  that  monitor  water
quality and purity as required by standards set by us and as required by law, which employ approximately 300 technicians, biologists, engineers
and chemists. Our laboratories perform an average of 130,000 analyses per month on distributed water, with samples collected from residences.
Our central laboratory located in the City of São Paulo is responsible for organic compound analysis using the chromatographic and spectrometric
methods, as well as heavy metals analysis by atomic absorption technique. All of our laboratories have obtained ISO 9001/2000 certification and
twelve  of  our  sixteen  water  control  and  quality  laboratories  have  obtained  a  NBR  ISO/IEC  17025  accreditation  (General  requirements  for  the
competence  of  testing  and  calibration  laboratories)  awarded  by  INMETRO  (National  Institute  of  Metrology,  Standardization  and  Industrial
Quality).  

All  chemical  products  used  for  water  treatment  are  analyzed  and  follow  strict  specifications  set  out  in  recommendations  made  by  the  National
Sanitation  Foundation,  or  NSF,  and  the  Brazilian  Association  of  Technical  Rules  (Associação  Brasileira  de  Normas  Técnicas),  or  ABNT  and
American Water Works Association (AWWA), to eliminate toxic substances that are harmful to human health.  

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From time to time, we face problems with the proliferation of algae, which may cause an unpleasant taste and odor in the water. In order to mitigate
this problem, we work on two fronts: (1) fighting algae growth at the water resource, resulting in our detection of no significant algae growth in
2007,  and  (2)  using  advanced  treatment  processes  at  the  water  treatment  facilities,  which  involves  the  use  of  powdered  activated  carbon  and
oxidation by potassium permanganate. The algae growth creates significant additional costs because of the higher volumes of chemicals used to
treat  the  raw  water.  We  participate  in  the  Water  Source  Program  (Programa  Mananciais)  together  with  other  organizations  engaged  in  the
promotion of urban development and social inclusion to mitigate the pollution problem in all systems of the São Paulo Metropolitan Region. In
addition, we also participate in the Clean Stream Program, a join program with State Government, through us, and the Municipal of São Paulo to
clean up important streams in this region. See –“Capital Expenditure Program - Water Source Program and Clean Stream Program”.

We believe that there are no material instances where our standards are not being met. However, we cannot be certain that future breaches of these
standards will not occur.  

Fluoridation. As required by Brazilian law, we have adopted a water fluoridation program which is designed to assist in the prevention of tooth
decay among the population. Fluoridation primarily consists of adding fluorosilicic acid to water at 0.7 parts per million. We add fluoride to the
water at our treatment facilities prior to its distribution into the water supply network.  

Sewage Operations 

We  are  responsible  for  the  collection  and  removal  of  sewage  through  our  sewage  systems  and  for  its  subsequent  disposal  with  or  without  prior
treatment.  As  of  December  31,  2007,  we  collected  approximately  83%  and  72%  of  all  the  sewage  produced  in  the  municipalities  in  which  we
operate  in  the  São  Paulo  Metropolitan  Region  and  the  Regional  Systems,  respectively,  accounting  for  approximately  79%  of  all  the  sewage
produced in the municipalities in which we operated in the State of São Paulo during 2007. 

Sewage System. The function of our sewage system is to collect, remove and dispose of sewage. As of December 31, 2007, we were responsible
for  the  operation  and  maintenance  of  40,608  kilometers  of  sewer  lines,  of  which  approximately  21,141  kilometers  are  located  in  the  São  Paulo
Metropolitan Region and 19,467 kilometers are located in the Regional Systems.  

The  following  table  sets  forth  the  total  number of  kilometers  of  sewer  lines and  the  total  number of  sewage  connections  in  our  network  for  the
periods indicated.  

Sewage lines (kilometers)
Sewage connections (thousands)

As of
December 31,
2006

39,126  
5,002  

2005

37,181 
4,878 

2007

40,608 
5,167 

Our  sewage  system  comprises  a  number  of  systems  built  at  different  times  and  constructed  primarily  from  clay  pipes  and,  more  recently,  PVC
tubing. Sewage  lines larger  than 0.5  meters in diameter  are primarily  made  of concrete. Our sewage system is generally designed to operate  by
gravitational flow, although pumping stations are required in certain parts of the system to ensure the continuous flow of sewage. Where pumping
stations are required, we use sewer lines made of cast iron.  

Industrial  sewage  has  physical,  chemical  and/or  biological  characteristics  that  are  qualitatively  different  from  household  effluents,  and  may
eventually cause  damage  to or overload sewage collection  and treatment systems, pose risks to the safety and health of operators and adversely
affect the environment. To avoid such events, current environmental legislation establishes standards for the discharge of these effluents into the
public  sewage  system.  These  standards  are  defined  in  Article  19  of  State  Decree  8,468  of  September  8,  1976  and  the  related  amendments.  To
ensure compliance with legislation, periodic audits are made of the sewage produced by all industrial clients and we also request self-monitoring 
reports from sewage-producing sources.  

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The  discharge  of  these  effluents  into  the  public  sewage  system  is  based  on  technical  and  administrative  procedures.  Before  the  discharge  is
permitted, we carry out acceptance studies that assess the capacity of the public sewage system to receive the discharge as well as the compliance
with regulations. Upon the conclusion of these studies, the technical and commercial conditions for receiving the discharge are established, which
are  then  formalized  in  a  document  signed  by  the  company  and  the  effluent  producer.  Failure  to  comply  with  these  conditions  can  lead  to  the
suspension of the connection and notification of the environmental protection agency (CETESB) in order for the applicable measures to be taken.
Effluents from our sewage treatment facilities (Estações de Tratamento de Esgotos—ETEs) must comply with discharge standards established by 
federal and state regulations and also  must comply with emission standards and observe the water quality of the bodies of water established by
federal and state legislation. Emission standards consist of a set of parameters that must be verified before the effluents are discharged into a body
of  water.  Quality  standards  are  based  on  the  classification  of  bodies  of  water,  taking  into  account  the  expected  use  of  the  water,  with  these
standards becoming more stringent for bodies of water with more important use profiles.  

We consider  the  condition of the sewer  lines in  the  São  Paulo  Metropolitan Region  generally  to be adequate.  Due  to  greater  volume of  sewage
collected  and  to  higher  population  and  commercial  and  industrial  development,  the  condition  of  the  sewer  lines  in  the  São  Paulo  Metropolitan
Region is somewhat worse than that of the Regional Systems. To counteract the effects of deterioration, we maintain a continuing program for the
maintenance of sewer lines intended to deal with anticipated fractures arising from obstructions caused by system overloads.  

Unlike  the  São  Paulo  Metropolitan  Region,  the  interior  region  does  not  generally  suffer  obstructions  caused  by  sewage  system  overload.  The
coastal region, however, experiences obstructions in its sewer lines primarily due to infiltration of sand, especially during the rainy season in the
summer months. In addition, the number of sewage connections in the coastal region is significantly lower than in the other regions served by us,
with approximately 51% of all residences in the coastal region currently connected to our sewage network.

New sewage connections are made on substantially the same basis as connections to water lines: we assume the cost of installation for the first 15
meters of sewer lines from the sewage network to residential and commercial customers’ sewage connections and the customer is responsible for
the remaining costs. Industrial customers are responsible for the entire cost of extension and connection to the sewage network.

The following table sets forth projected new sewage connections for the periods indicated.  

São Paulo Metropolitan Region 

Regional Systems 

       Total 

2007

2008

2009

2010

2007-2010

Forecast

Actual

(in thousands)

81.2 

58.9 

86.5 

65.0 

100.5 

63.9 

87.2 

82.4 

84.2 

233.4 

353.0 

438.6 

140.1 

151.5 

164.4 

169.6 

317.6 

791.6 

Sewage Treatment and Disposal. In 2007, approximately 62% and 76% of the sewage we collected in the São Paulo Metropolitan Region and the
Regional Systems respectively, or 66% of the sewage we collected in the State of São Paulo, was treated at our treatment facilities and afterwards
discharged  into  receiving  water  bodies  such  as  inland  waters  and  the  Atlantic  Ocean,  in  accordance  with  applicable  legislation.  Our  sewage
treatment  facilities  have  a  finite  capacity.  Flows  in  excess  of  this  capacity  are  discharged  directly,  untreated,  to  inland  waters  and  the  Atlantic
Ocean. Currently we operate 453 sewage treatment facilities and eight ocean outfalls. 

The  treatment  consists  of  the  removal  of  pollutants  from  sewage.  The  method  to  be  used  depends  upon  the  physical,  chemical  and  biological
characteristics of the wastewater.  

In the Metropolitan Region of São Paulo, the treatment used in the large treatment facilities is activated sludge, where there is a liquid phase and a
solid phase which involves the sludge.  

The activated sludge process was developed in England in 1914. It is widely used for the treatment of domestic and industrial sewage. The work
consists of a system in which a biological mass grows, forms flakes, is continually recirculated and put in contact with organic matter, always with
the presence of oxygen (aerobic). 

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The activated sludge process is strictly biological and aerobic, in which the raw sewage and the activated sludge are intimately mixed, agitated and
aerated  in  units  known  as  secondary  decanters  where  the  solid  part  is  separated  from  the  treated  wastewater.  The  settled  sludge  returns  to  the
aeration tank or is removed for specific treatment.  

We operate  47  activated sewage  treatment  facilities,  each  of  which  also  contains  a  primary  treatment  facility.  The  five  largest  activated  sewage
treatment facilities located in the São Paulo Metropolitan Region have treatment capacity of approximately 18 cubic meters of sewage per second. 

Sewage treatment in the Regional Systems will vary according to the particularities of each area. In the interior region, treatment consists largely of
stabilization  ponds  where  the  organic  matter  is  treated  and  discharged  to  receiving  waters.  There  are  366  secondary  treatment  facilities  in  the
interior region which have treatment capacity of approximately 10.5 cubic meters of sewage per second. 

The majority of sewage collected in the coastal region receives treatment and disinfection and is then discharged into rivers and into the Atlantic
Ocean. We have 67 sewage treatment facilities in the coastal region. 

Our trunk lines are currently not sufficiently extensive to transport all sewage collected by us to our treatment facilities. As a result, a portion of the
sewage collected by us is released untreated into receiving waters, resulting in high levels of pollution in these bodies of water. We are a party to a
number  of  legal  proceedings  related  to  environmental  matters.  See  “Item  8.A.  Financial  Information—Consolidated  Statements  and  other
Information——Legal Proceedings.” In addition, our capital expenditure program includes projects to increase the amount of sewage that we treat.
See “— Capital Expenditure Program” and “Government Regulation—Sewage Requirements.” 

Sludge  Disposal. Sludge  removed  from  the  primary  and  secondary  treatment  processes  typically  contains  water  and  a  very  small  proportion  of
solids. We use filter presses, belt presses and centrifugation machines to abstract the water from the sludge. In 2007, we produced approximately
49,291  tons  of  sludge-dry  base,  of  which  44,491  tons  were  discharged  into  landfills  and  the  remainder  was  used  for  agricultural  purposes.  In
addition, we are testing new technologies for sludge disposal as fertilizer in forest projects, fuel development and concrete manufacturing.  

Customers 

We currently operate water and sewage systems in 366 of the 645 municipalities in the State of São Paulo. In addition, we currently sell water on a
wholesale  basis  to  six  municipalities  with  a  total  population  of  approximately  3.2  million.  The  following  table  provides  a  breakdown  of  total
revenues by geographic market for the periods indicated. 

São Paulo Metropolitan Region 
Regional Systems 
Total revenue from sales and services 

Competition 

2005

Year ended December 31,
2006
(in millions of reais)
4,534.1 
1,449.9 
5,984.0 

4,044.2 
1,312.1 
5,356.3 

2007

4,888.1 
1,560.1 
6,448.2 

We  believe  there  are  at  least  two  reasons  behind  a  possible  increase  in  our  participation  in  the  domestic  sanitation  market.  There  are  274
municipalities in the State of São Paulo that operate their own water and sewage systems and that collectively have a population of approximately
12.6 million, or approximately 31% of the population of the State of São Paulo, excluding the population of the municipalities to which we provide
water services on a wholesale basis. In addition, there are private water companies which provide water and sewage services to a small number of
municipalities in the State of São Paulo, which may indicate a potential opportunity for the increase of our market share.  

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In general, we do not face any competition in the municipalities in which we provide water and sewage services. However, governments of these
municipalities may also compete with us, if they resume the water and sewage services that were granted to us and start providing these services
directly  to  the  local  population.  In  this  case,  the  municipal  governments  would  be  required  to  indemnify  us  for  the  unamortized  portion  of  our
investment.  See  “—Our  Operations—Concessions.”  In  the  past,  municipal  governments  have  terminated  our  concessions  contracts  before  the
expiration  date.  Also,  municipal  governments  have  tried  to  expropriate  our  assets  in  an  attempt  to  resume  the  provision  of  water  and  sewage
services  to  local  populations.  See  “Item  8.A.  Financial  Information—Consolidated  Statements  and  other  Information—Legal  Proceedings.”  We 
negotiate expired concession contracts and concession contracts to be expired with the municipalities in an attempt to maintain our existing areas of
operations.  

We  face  a  limited  level  of  competition  with  respect  to  the  supply  of  water  to  large  customers.  Several  large  industrial  customers  located  in
municipalities served by us use their own wells to supply themselves with water. This use of private wells has been increasing in recent years. We
have established new tariff schedules for commercial and industrial customers in order to help retain these customers. Additionally, we already face
competition for the disposal of non-residential, commercial and industrial sludge in the São Paulo Metropolitan Region. 

Billing Procedures 

The procedure for billing and payment of our water and sewage services is basically the same for each customer category. Water and sewage bills
are  based  upon  water  usage  determined  by  monthly  water  meter  readings.  Larger  customers,  however,  have  their  meters  read  every  15  days  to
avoid non-physical losses resulting from faulty water meters. Sewage billing is included as part of the water bill and is based on the water meter
reading.  

We deliver all water and sewage bills by hand to our customers, mainly through independent contractors who are also responsible for reading water
meters.  

Water and sewage bills can be paid at some banks and other locations in the State of São Paulo. These funds are paid over to us and average service
fees between R$0.29 and R$1.15 per transaction are charged for collection and remittance of these payments. 

Customers must pay their water and sewage bills by the due date if they wish to avoid paying a fine. We generally charge a penalty fee and interest
on late bill payments. In 2005, 2006 and 2007, we received, respectively, payment of 90.8%, 91.5% and 92.8% of the amount billed to our retail
customers, and 91.1%, 92.5% and 92.5% of the amount billed to those customers other than State entities, within 30 days after the due date. With
respect to wholesale sales, in 2005, 2006 and 2007, we received payment of 60.6%, 61.4% and 65.2%, respectively, of the amount billed within 30
days.  

In the São Paulo Metropolitan Region, we monitor water meter readings by use of hand-held computers and transmitters. The system allows the 
meter reader to input the gauge levels on the meters into the computer and automatically print the bill for the customer. The hand-held computer
tracks water consumption usage at each metered location and prepares bills based on actual meter readings. We outsourced this billing system to
third-party contractors that employ and train their own meter readers whose training we supervise. We have water meter reading and printing by
hand-held  computers  in some  municipalities that we  serve in the Regional Systems and intend to expand this system  in other municipalities we
serve.  

Tariffs 

The readjustment of our tariff will follow the parameters established by the new basic sanitation law as well as the São Paulo State Sanitation and
Energy Regulatory Agency’s (ARSESP) parameters, procedural steps and terms and will be held once a year. The readjustment will be announced
30 days prior to the effective date of the new tariffs which will occur in September, and last for a period of at least 12 months. We believe that for
fiscal year 2008, ARSESP will adopt the adjustment formula that we have been using since August 2003. 

Tariffs have historically been adjusted once a year and for periods of at least 12 months. We raised tariffs in June 2001, in July 2002 and in August
2003. We increased our tariffs for water and sewage services by 6.8% on August 29, 2004 and by 9.0% on August 31, 2005. On August 31, 2006,
we  increased  our  tariffs  by  6.71%  .  On  September  10,  2007,  tariffs  rose  by  4.12%,  except  for  water  supply  and  sewage  collection  tariffs  for
consumption of more than 20 cubic meters in non-residential categories, which were adjusted by the cumulative inflation from August 2006 to July
2007 in the IPCA index published by IBGE, which came to 3.74% .  

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We established  a  new tariff schedule,  effective  May 2002, for commercial and industrial customers that consume at least 5,000 cubic meters of
water  per  month  and  that  enter  into  demand  agreements  with  us  for  at  least  one-year  terms.  In  October  2007,  the  minimum  volume  for  the 
formalization for the agreement declined from 5,000 m³/month to 3,000 m³/month. We believe this tariff schedule will help prevent our commercial 
and industrial customers from switching to the use of private wells.  

On  August  29,  2003,  we  developed  and  implemented  a  new  readjustment  formula  for  our  tariffs  to  better  reflect  changes  in  our  cost  structure.
According to this formula, the cost components of the Tariffs Readjustment Index, or IRT, are separated into two parts (“Part A” and “Part B”), 
where “Part A” encompasses all costs related to energy, to water and sewage treatment materials, to federal, state and local taxes, and to financial
compensation due to use of water resources; and where “Part B” encompasses all other costs and expenses. The readjustment of “Part A” is based
on the price variation observed in its components during the preceding 12-month period. “Part B” is adjusted by the IPCA index.

We establish separate tariff schedules for our services in each of the São Paulo Metropolitan Region and each of the interior and coastal regions
which  comprise  our  Regional  Systems.  Each  tariff  schedule  incorporates  regional  cross-subsidies,  taking  into  account  the  customers’  type  and
volume of consumption. Tariffs paid by customers with high monthly water consumption rates are higher tariffs than our costs of providing the
water  service.  We  use  the  excess  tariff  billed  to  high-volume  customers  to  compensate  for  the  lower  tariffs  paid  by  low-volume  customers. 
Similarly, tariffs for non-residential customers are established at levels that subsidize residential customers. In addition, the tariffs for the São Paulo
Metropolitan Region generally are higher than tariffs in the interior and coastal regions.  

We  divide  tariffs  into  two  categories:  residential  and  non-residential.  The  residential category  is  subdivided  into  standard  residential,  social  and
favela  (shantytowns).  The  residential  social  tariffs  apply  to  residences  of  low-income  families,  residences  of  persons  unemployed  for  up  to  12 
months and collective living residences. The favela tariffs apply to residences in shantytowns characterized by a lack of urban infrastructure. The
latter two sub-categories were instituted to assist lower-income customers by providing lower tariffs for consumption. The non-residential category 
consists of:  

  commercial, industrial and public customers; 

  “not-for-profit” entities that pay 50% of the prevailing non-residential tariff; and 

  government entities that have entered into a water loss reduction agreement with us and pay 75% of the prevailing non-residential tariff. 

Sewage charges in each region are fixed and are based on the same volume of water charged. In the São Paulo Metropolitan Region and the coastal
region, the sewage tariffs equal the water tariffs. In the interior region, sewage tariffs are approximately 20% lower than water tariffs. Wholesale
water rates are the same for all municipalities served. We also make available sewage treatment services to those municipalities in line with the
applicable contracts and tariffs. In addition, various industrial customers pay an additional sewage charge, depending on the characteristics of the
sewage they produce.  

Each category and class of customer pays tariffs according to the volume of water consumed. The tariff paid by a certain category and class of
customer increases progressively according to the increase in the volume of water consumed. The following table sets forth the water and sewage
services tariffs by (1) customer category and class and (2) volume of water consumed charged during the years and period stated in the São Paulo
Metropolitan Region, which accounted for approximately 75.8% of our gross revenue from sales and services in 2007.  

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Customer Category Consumption

(in cubic meters per month)

Table of Contents

2005

As of
December 31,
2006
(reais/cubic meter)(1)

2007

Residential:

Basic Residential:

         0-10(2)
         11-20 
         21-50 
         Above 50 

Social:
         0-10(2)
         11-20 
         21-30 
         31-50 
         Above 50 

Favela (shantytown):

         0-10(2)
         11-20 
         21-30 
         31-50 
         Above 50 
Non-Residential:

Commercial/Industrial/Governmental:

         0-10(2)
         11-20 
         21-50 
         Above 50 

Commercial/Not-for-profit entities:

         0-10(2)
         11-20 
         21-50 
         Above 50 

Government entities with reduction agreement: 

         0-10(2)
         11-20 
         21-50 
         Above 50 
________________________________________ 
(1) Water and sewage tariffs are the same per cubic meter.  
(2) The minimum volume charged is for ten cubic meters per month. 

1.12 
1.74 
4.36 
4.81 

0.38 
0.66 
2.31 
3.30 
3.65 

0.29 
0.33 
1.09 
3.30 
3.65 

2.24 
4.36 
8.41 
8.75 

1.12 
2.19 
4.22 
4.37 

1.68 
3.27 
6.31 
6.56 

1.19  
1.86  
4.65  
5.13  

0.40  
0.70  
2.47  
3.52  
3.89  

0.30  
0.35  
1.16  
3.52  
3.89  

2.39  
4.65  
8.97  
9.34  

1.19  
2.34  
4.50  
4.66  

1.79  
3.49  
6.73  
7.00  

1.24 
1.94 
4.84 
5.34 

0.42 
0.73 
2.57 
3.67 
4.05 

0.32 
0.36 
1.21 
3.67 
4.05 

2.49 
4.84 
9.31 
9.69 

1.24 
2.44 
4.67 
4.83 

1.87 
3.63 
6.98 
7.26 

In  2007,  the  average  tariff  calculated  for the  Regional  Systems  was  approximately  30%  below  the  average  tariff  of  the  São  Paulo  Metropolitan
Region.  

During mid-1999 until mid-2001, we did not raise our tariffs, due to a State policy of not increasing tariffs for some public services. In June 2001,
we increased our average tariffs by approximately 13.1%, which was broadly in line with the prevailing inflation rates in Brazil since mid-1999, 
and in August 2002 we raised our tariffs by approximately 8.2% . Using a new readjustment formula approved by our board of directors, in August
2003 we raised our tariffs for water and sewage services by approximately 18.9%, and in August 2004 we raised our tariffs for water and sewage
services by approximately 6.8% . 

The  application  of  the  formula  in  2005  would  result  in  a  tariff  increase  of  11.12%,  part  of  which  increase  is  attributable  to  the  increase  in  the
federal taxes. Because this increase was much higher than the accumulated inflation levels for the corresponding period, we decided to adjust the
tariff by 9%, effective August 31, 2005. The remaining percentage (1.94%) was deferred to the 2006 tariff adjustment. On August 31, 2006, we
increased our tariffs by 6.71% . In 2004, we initiated certain studies for the restructuring of our tariffs. These studies include a study of our costs,
taking  into  account  economic  efficiency,  future  costs  of  operation  and  payment  capacity  of  low-income  families.  We  have  also  prepared  a 
marketing strategy for the segmentation of our clients and of the market, taking into consideration specific characteristics and commercial potential
as well as proposals for improvement of our tariff policies. The analysis of the results of the study indicated the need for adjustments in the tariff
levels per customer category. On September 10, 2007, we applied a non-linear adjustment of 4.12% per customer category except for water supply 
and sewage collection tariffs for consumption of over 20 cubic meters of non-residential category, which were adjusted by the cumulative inflation 
from August 2006 to July 2007 in the IPCA index published by IBGE, which came to 3.74% .  

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We concluded a study on this topic in January 2006 and our board of executive officers created a team to evaluate and, if needed, to update and
report  the  actions  necessary  for  the  implementation  of  the  recommendations  of  the  study.  However,  with  the  enactment  of  Federal  Law  No.
11,445/07,  tariff  regulation  must  be  performed  by  an  independent  regulatory  entity.  ARSESP  has  been  chosen  to  work  as  the  independent
regulatory  entity,  regulating  our  tariffs,  pursuant  to  a  cooperation  agreement  between  the  Municipality  and  the  State.  With  respect  to  other
municipalities where ARSESP has not been explicity selected to perform this task, we will depend on legal interpretation to conclude whether it
will  be  the  independent  entity  in  charge  of  regulating  tariffs.  We  believe  that  for  2008  ARSESP  will  be  in  charge  of  tariff  adjustments  for  all
municipalities currently operated by us with the sole exception of Lins, a municipality which has already decided to create its own independent
regulatory entity. See “—Government Regulation—Tariff Regulation in the State of São Paulo” for additional information regarding our tariffs.  

Energy Consumption 

The use of energy is material to our operations, and as a result we are one of the largest users of energy in the State of São Paulo, which represents
1.9% of the total  energy  consumption  in the State of São Paulo. We obtain energy primarily  from  Companhia Energética São Paulo, or CESP, 
pursuant  to  a  long-term  contract  expiring  in  2012.  To  date,  we  have  not  experienced  any  major  disruptions  in  energy  supply.  Any  significant
disruption of energy to us could have a material adverse effect on our business, financial condition, results of operations or prospects.  

Energy  prices  have  a  significant  impact  on  our  results  of  operations.  An  average  increase  of  17.5%  in  2004  negatively  affected  our  results  of
operations.  In  2005,  we  migrated  43%  of  our  energy  requirements  to  the  “free  market”  where  we  can  more  efficiently  negotiate  the  supply  of
energy.  In  2007,  46%  of  our  total  energy  consumption  occurred  under  “free  market”  rates.  See  “Item  5.  Operating  and  Financial  Review  and
Prospects.” 

Insurance 

We  maintain  insurance  covering,  among  other  things,  fire  or  other  damage  to  our  property,  office  buildings  and  third-party  liability.  We  also 
maintain insurance coverage for directors’ and officers’ liability (D&O insurance). We currently obtain our insurance policies through public bids
involving  major  Brazilian  and  international  insurance  companies  in  Brazil.  As  of  December  31,  2007,  we  had  paid  a  total  aggregate  amount  of
R$4.61  million  in  premiums,  covering  approximately  R$688.5  million  on  assets,  third-party  liabilities  and  D&O  insurance.  We  do  not  have 
insurance coverage for business interruption risk because we do not believe that the high premiums for such insurance are justified by the low risk
of major interruption. In addition, we do not have insurance coverage for liabilities arising from water contamination or other problems involving
our water supply to customers and for environmental related liabilities and damages. We believe that we maintain insurance at levels customary in
Brazil for the type of business in which we are engaged.  

Environmental Matters 

Our  operations  interact  directly  with  the  environment.  As  such,  protecting  the  environment  and  social  and  environmental  responsibility  are  our
fundamental principles. We seek to be recognized as a “global reference of excellence in the provision of environmental sanitation services”.

Sustainability  is  one  of  our  fundamental  principles  and  values.  We  balance  our  financial  results  with  environmental  preservation  and  social
development.  

In early 2007, we adopted a new management model that treats environmental issues as a strategic objective and implemented some changes that
give  our  corporate  organization  a  greater  focus  on  environmental  issues.  Environmental  management  was  introduced  into  the  new  Technology,
Project  and  Environment  Department,  which  includes  the  Environmental  Management  Superintendence,.  An  Environmental  Legislation
Department was also created. To establish integrated operations and manage specific environmental issues in the regions where we operate, each
one of our divisions will have an Environmental Management Center to act as operational environmental management agents, thereby accelerating
the flow of information. As a result, the many environmental initiatives and programs will be developed by the various divisions, which will also
be responsible for implementing our Environmental Policy. 

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The challenge is enormous, given our size and diversity and the decentralized management of our business.  

To help fulfill our mission, several environmental targets have been established, including: 

  ISO 14001 certification of 10% of operating units by 2010, which corresponds to 65 water and/or sewage treatment stations; 

  maximizing opportunities to participate in the carbon market; 

  maximizing the opportunities to efficiently generate electricity; 

  drafting of an Environmental Balance Sheet in 2008, with the launch of initiatives to structure environmental accounting in 2007 in order
to improve the Company’s balance sheet so as to recognize and emphasize investments in the environment that are not related to the core
business; and 

  identification of alternatives for the recycling and final disposal of water and sewage from treatment stations through partnerships with 

research institutions and the CETESB Environmental Agency. 

The  implementation  and  operation  of  water  and  sewage  systems  are  subject  to  strict  federal,  state  and  municipal  laws  and  regulations  on
environmental  and  water-resource  protection.  In  São  Paulo  State,  the  Environmental  Sanitation  Technology  Company  (CETESB)  is  the
governmental entity responsible for the control, supervision and licensing of potentially polluting activities, pursuant to State Law 997 of March
31, 1976, which regulates the control of environmental pollutants. 

The  control  and  planning  instruments  defined  by  this  law  include  environmental  licensing  (State  Law  997/76,  CONAMA  Resolution  05/88,
CONAMA Resolution 237/97, State Decree 47,400/02, State Decree 47,387/02), standards for effluent emissions and water quality of bodies of
water (State Decree 8,468/76 and CONAMA Resolution 357/05) and concessions for the rights to use and interfere with water resources (DAEE
Ordinance 717/96).  

Projects  with  significant  environmental  impact  are  subject  to  specific  studies  prepared  by  multidisciplinary  teams  that  present  a  series  of
recommendations focused on minimizing the environmental impact. These studies are then submitted for analysis and approval by the government
authorities. The licensing process is composed of three stages, which include the following licenses:  

  prior license - granted in the planning stage, approving the location and concept and attesting to the project’s environmental feasibility. 

  installation license - authorizing  the beginning of works for the installation of the project, subject to the compliance with the approved 

plans, programs and projects, including environmental control measures and other necessary technical requirements. 

  operation license - authorizing the operation of a unit or activity subject to compliance with the technical requirements contained in the 

installation license.  

We have made considerable efforts to protect water sources in order to improve environmental conditions and preserve the São Paulo Metropolitan
Region’s  water  resources,  through  sewage  collection  and  treatment,  or  indirectly  through  environmental  programs  and  initiatives.  These  latter
efforts  exceed  our  legal  obligations  and  involve  several  sectors  of  society,  including  elementary  and  high  schools,  universities,  neighborhood
associations and non-governmental organizations. 

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Another important part of our policy is to implement water conservation programs to minimize the impact of our operations, including the reuse of
effluents from sewage treatment stations and the encouragement of the rational use of water with specific programs.  

Government Regulation 

Basic sanitation services in Brazil are subject to an extensive federal, state and local legislation and regulation that, among other things, regulates:  

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  the granting of concessions to provide water and sewage services; 

  the implementation of public private partnerships; 

  the need of a public bidding process for the appointment of private water and sewage services providers; 

  the need of setting up an agreement for the appointment of public water and sewage services providers; 

  the  joint  management  of  public  services  through  cooperation,  allowing  for  a  program  contract  without  the  need  for  a  public  bidding 

process for the service provider, subject to the condition that the planning, execution and monitoring activities are not executed; 

  regulation of water and sewage services; 

  water usage; 

  water quality and environmental protection; and 

  governmental restrictions on the incurrence of indebtedness applicable to state-controlled companies. 

General

Pursuant to Article 23 of the Brazilian Constitution, water and sewage services are the common responsibility of the Federal Government, the states
and the municipalities.  

Article 216 of the Constitution of the State of São Paulo provides that, by law, the State must provide the conditions for efficient management and
adequate expansion of water and sewage services rendered by its agencies and State-controlled companies or any other concessionaire under its 
control.  State  law  authorized  our  formation  to  plan,  provide  and  operate  water  and  sewage  services  in  the  State  and  also  acknowledged  the
autonomy of the municipalities.  

Pursuant to Article 175 of the Brazilian Constitution, the furnishing of public services, such as water and sewage services, is the responsibility of
the applicable public authority. However, any such public authority has the right to furnish these services directly or through a concession granted
to a third party.  

Law  No.  11,107/05  (Consortium  Law)  and  Law  No.  11,445/07,  the  basic  sanitation  law,  enacted  on  January  5,  2007,  have  caused  significant
impacts in the development of the state sanitation policy and the regulatory structuring of the industry. 

Because we are the legal concessionaire for the State of São Paulo for water supply and sewage services, serving approximately 60% of the State’s 
population  and  providing  sanitation  services  through  concession  contracts,  we  notice  the  impacts  of  this  legislation  on  the  expiration  of  our
contracts in the 1970’s when the Brazilian Sanitation Plan (Plano Nacional de Saneamento), or PLANASA, was created.  

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The Consortium Law has caused important changes in the relationship among municipalities, states and public sanitation services providers, most
notably mixed capital companies, such as us, because of the implementation of the program contracts as a substitute for concession contracts.  

In addition, Law No. 11,445/07 in its role of general guideline for the development of the Brazilian sanitation industry, addresses the conditions of
validity for the delegation of water supply and sewage services, the exercise of ownership by the granting authority and the regulatory conditions
for the industry. The new basic sanitation law also provides for a significant amendment to Article 42 of the Concessions Law which establishes
the termination of concessions prior to the due expiration date and the reversibility conditions of unamortized assets. The amendment requires that
the service provider be compensated for unamortized assets, prioritizing an agreement between the parties setting out the criteria for calculation and
payments of indemnity. 

The Basic Sanitation Law 

On January 5, 2007, Law No. 11,445 was enacted establishing nationwide guidelines for basic sanitation and seeking to create solutions that are
adequate for the reality of each state and municipality, facilitating the technical cooperation between the state and municipalities. In addition, the
Federal  Government  will  enact  its  public  policy  to  facilitate access  to  financing  alternatives  that  are compatible  with the  costs  and  terms  of  the
sanitation industry, in substitution of the PLANASA model.  

The new basic sanitation law establishes the following principles for basic sanitation public services: universalization, integrality, efficiency and
economic  sustainability,  transparency  of  actions,  social  control  and  integration  of  infrastructure  and  services  with  the  management  of  water
resources. 

This law does not define the ownership of the sanitation services, but establishes the minimum liability for the exercise of ownership, such as the
development of the sanitation plan, definition of the person responsible for regulation and control, establishment of the rights and obligations of the
users and of the social control mechanisms. It also defines the regionalized performance of the services (i.e., one single provider serves two or more
owners, for which there may be one plan for the combination of services).  

In addition, the new basic sanitation law defines the guidelines and objectives of the federal basic sanitation policy to be observed when securing
public  funds  generated  or  operated  by  agencies  or  entities  of  the  Federal  Government,  and  foresees  the  possibility  of  having  subsidies  as  an
instrument of social policy to ensure access to basic sanitation services to everyone, particularly the low-income population. The subsidies may be 
granted either directly, through tariffs or indirectly, depending on the characteristics of the beneficiaries and on the source of the funds.  

Furthermore, the law also provides that the sanitation services may be interrupted by the service provider, in the event of default of payment of the
tariffs by the customer, among other reasons, after written notice, as long as minimum health requirements are met.  

Finally,  the  legislation  establishes  the  criteria  for  the  reversal  of  assets  at  the  time  of  termination  of  the  agreement  and  with  regard  to  the
concessions, such as those that have expired or are effective for an indefinite term, or those that were not formalized by an agreement. In addition,
the  law  provides  the  calculation  and  value  of  the  indeminity  that  must  be  calculated  by  a  specialized  institution  chosen  by  mutual  agreement
between the parties.  

In  the  absence  of  mutual  agreement,  the  calculation  of  the  indemnity  is  based  on  the  terms  and  conditions  of  the  previous  agreement,  or  in  the
absence thereof,  upon economic valuations  or book  value  revaluation of  the investment. It should also be  calculated by a specialized institution
chosen by mutual agreement between the parties.  

Payment is to be effected in up to four, equal and successive, annual installments, with a guarantee, being the first payment payable by no later than
the end of the financial year in which the reversal occurs. 

Concessions 

Concessions for providing water and sewage services are formalized by agreements executed between the state or municipality, as the case may be,
and  a  concessionaire  to  which  the  performance  of  these  services  is  granted  in  a  given  municipality  or  region.  Our  concessions  normally  have  a
contractual term of up to 30 years, although some of our concessions have an indefinite term of effectiveness. However, our concessions in general
can be revoked at any time if certain standards of quality and safety are not met, or in the event of default of the terms of the concession contract. 

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A municipality that chooses to assume the control of its water and sewage services must terminate the current relationship by means of evaluation
of the value of the investments to compensate the service provider. Subsequently, the municipality will be in charge of rendering services or of
conducting  a  public  bidding  process  to  grant  the  concession  to  potential  concessionaires,  including  agreements  with  public  companies  directly.
Although the Constitution of the State of São Paulo determines that the relevant municipality would have to pay us for the unamortized book value
of  the  assets  related  to  the  concession  and  assume  any  correlated  debt,  with  the  exclusion  of  any  amounts  that  have  been  paid  to  us  by  the
municipality,  upon  termination  or  non-renewal  of  the  concession,  the  payment  for  termination  may  not  be  effected  immediately,  and  any
termination could negatively affect our cash flows, operating results and financial situation.  

The Federal Concessions Law and the State Concessions Law require that the granting of a concession by the government be preceded by a public
bidding  process.  However,  the  Federal  Public  Bidding  Law  provides  that  a  public  bidding  process  can  be  waived  in  certain  circumstances,
including in the case of services to be provided by a public entity created for such specific purpose on a date prior to the effectiveness of this law,
provided  that  the  contracted  price  is  compatible  with  what  is  practiced  in  the  market.  Furthermore,  a  provision  of  the  Federal  Constitution
determines  waiver  of  the  public  bidding  requirement  in  similar  situations.  Based  on  this  provision,  the  municipalities  granted  concessions  with
waiver of public bidding processes to us after the enactment of the Federal Constitution. Currently, the new basic sanitation law provides that the
program contract can be executed with waiver of a public bidding process.  

Municipal  Law  No.  13,670,  dated  November  25,  2003,  created  the  Municipal  System  for  Regulation  of  Water  Supply  and  Sanitary  Sewage
Services (Sistema Municipal de Regulação dos Serviços de Abastecimento de Água e Esgotamento Sanitário), providing for their constitution and
operation and also establishing the Municipal Sanitation Plan (Plano Municipal de Saneamento). According to this Law, the Mayor of the City of
São Paulo has powers to grant and monitor formal concessions for water and sewage services in the City of São Paulo. Subsequent to Law No.
13,670, the Governor of the State filed a legal action claiming that this law was unconstitutional and, as a consequence, the applicability of Law
No. 13,670 was suspended. On April 20, 2005 the court ruled, by majority of votes, in favor of the Governor of the State. The City of São Paulo
appealed the decision and a final decision is still pending to this date.  

Public Consortia Law and Cooperation Agreements

On April 6, 2005, the Federal Government enacted Law No. 11,107, which regulates Article 241 of the Brazilian Constitution. This new regulation
provides general principles to be observed when public consortia enter into contracts with the Brazilian political divisions and subdivisions (the
Federal Government, states, the Federal District and municipalities) aiming at the joint management of public services of common interests. 

Federal  Decree  No.  6,017/07,  which  regulated  the  Public  Consortia  Law  and  Cooperation  Agreements,  sets  forth  the  manner  in  which  new
agreements will be entered into. 

On January 13, 2006, the Governor of the State of São Paulo enacted State Decree No. 50,470, amended by State Decree No. 52,020, of July 31,
2007,  which  provides  for  the  rendering  of  water  and  sewage  services  in  the  State  of  São  Paulo.  According  to  this  Decree,  we  may  enter  into
agreements  with  municipalities  in  connection  with  the  provision  of  water  and  sewage  services  by  means  of  the  so-called  program  contract.  In 
addition, the Decree establishes that we will continue to render services in the areas where the concession is granted by the State.

Based on the aforementioned statutes, in January 2007 we executed our first program contract with the municipality of Lins, located in the State of
São Paulo, which continues to be responsible for oversight and regulation. Subsequently, we formalized agreements with other municipalities in the
state of São Paulo, with the transfer of these duties to the State of São Paulo through a partnership agreement. 

On June 8, 2006, the State of São Paulo enacted the Decree No. 50,868 creating the Commission for the Regulation of Sanitation Service of the
State of São Paulo to provide the State of São Paulo with a more independent regulatory ability in relation to sanitation services. The Commission
for the Regulation of Sanitation Service of the State of São Paulo was directly subordinated to the State Secretariat for Sanitation and Energy. 

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The main duty of the Commission for the Regulation of Sanitation Service of the State of São Paulo was the conduction of studies for the creation
of a regulatory agency for the basic sanitation industry and the presentation of legal and regulatory measures, which resulted in the publication of
Supplementary Law 1,025 of December 7, 2007, creating the São Paulo State Sanitation and Energy Regulatory Agency (ARSESP). 

ARSESP  regulates  the  basic  sanitation  services  pertaining  to  the  State,  respecting  the  federal  and  municipal  jurisdictions  and  prerogatives  and
exercising the following functions:  

  complying with and enforcing state and federal basic sanitation legislation; 

  publishing the organizational platform for the services, indicating the types of services provided by the state as well the equipment and 

facilities composing the system; 

  assuming, where applicable, the legal attributions of the jurisdictional authority; 

  establishing, in accordance with the tariff guidelines defined by  the decree, tariffs and other manners for the compensation of services, 
adjusting and reviewing them to ensure the financial-economic balance of services and low-cost tariffs through mechanisms that increase 
service efficiency and lead to the appropriation of productivity gains by society; and 

  to approve, oversee and regulate (including tariff issues) sewage treatment and wholesale water supply agreements entered into between

the state supplier and other suppliers, pursuant to Article 12 of the new basic sanitation law.  

Regarding  municipal  basic  sanitation,  ARSESP  oversees,  control  and  regulate  (including  tariff  issues)  services  that  have  been  delegated  by
municipalities  to  the  state  through  shared  management  resulting  from  cooperation  agreements  to  formalize  the  program  contracts  between
municipalities and us for the execution of these services. If possible and convenient for the municipality, it can act on concession contracts made
prior to the current industry legislation.  

The remuneration due to ARSESP for its regulation, control and oversight activities will result from the charging of a rate established at 0.50%
(zero point five percent) of the annual total invoiced obtained directly from the provision of services, net of taxes. Although this rule has been in
effect  since  January  1,  2008,  we  are  awaiting  publication  of  the  ARSESP  regulations  that  define  the  means  of  payment.  We  believe  revenues
originated from services that are not subject to ARSESP´s regulation will not be affected by this 0.50% charge, although there is no assurance this
will be the ultimate resolution.  

Supplementary Law 1,025/07 also amended paragraphs 5, 7 and 8 and added paragraphs 9 and 10 to Article 1 of State Law 119/73, which created
us, expanding the range of services that we can render, with the inclusion of urban rainwater drainage and management, urban cleaning and solid
waste management, as well as the operation of power generation, storage, conservation and sales activities, for own or third-party use.  

In addition, the new rules simplified the process for the expansion of our business in Brazil and abroad, authorizing us:  

  to participate in the controlling block or the capital of other companies; 

  to create subsidiaries, which may become majority or minority shareholders in other companies; and 

  to  establish  partnerships  with  national  or  foreign  companies,  including  other  state  or  municipal  basic  sanitation  companies  in  order  to 

expand our activities, share technology and expand investments related to basic sanitation services.  

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Supplementary  Law  1,025/27  also  maintained  the  State  Sanitation  Committee  (CONESAN)  created  by  Supplementary  Law  7,750/92  as  an
advisory  and  decision-making  strategic  committee  to  define  and  implement  the  state  basic  sanitation  policy,  with  the  support  of  the  State
Secretariat for Sanitation and Energy, which works with the River Basin Committees to prepare proposals for sanitation plans and monitoring.  

Finally, this legislation also maintained the State Sanitation Fund (FESAN), linked to the State Secretariat for Sanitation and Energy, to collect and
manage resources to support the programs approved by the State and to foster the development of technology, management, human resources and
of the institution and the system of sanitation information, as well as other support programs, which will be regulated by decree.

Public-Private Partnerships and Growth Acceleration Plan 

The  Public-Private  Partnership,  or  PPP,  is  a  form  of  contract  with  the  public  administration  used  for  the  concession  of  services  only  to  private
enterprises,  as  well  as  for  construction  works  coupled  with  the  provision  of  services.  PPPs  are  regulated  in  the  State  of  São  Paulo  by  Law  No.
11,688 enacted on May 19, 2004. PPPs may be used for: (1) implantation, expansion, improvement, reform, maintenance, or management of public
infra-structure; (2) provision of public services; and (3) exploitation of public assets and non-material rights belonging to the State. 

Payment is conditional upon performance. The payment may be collected through: (1) fares paid by users; (2) assignment of credits belonging to
the Public Administration, except taxes; and (3) transfer of rights related to the commercial exploitation of public assets.  

Law No.11,688 also authorized the creation of Companhia Paulista de Parcerias — CPP. CPP may grant guarantees, enter into insurance contracts, 
and participate in PPP contracts. CPP is fully owned by the São Paulo State Government.  

In  January  2007,  the  President  of  Brazil  announced  a  new  Growth  Acceleration  Plan,  known  as  the  “PAC”,  that  includes  major  investments  in 
infrastructure  services,  including  the  service  provision  of  water  and  sewage,  housing,  as  well  as  highways,  airports,  ports,  energy,  that  would
benefit the poor population of Brazil. The Plan calls for a total investment of R$504.0 billion through 2010 and most part of this amount would be
provided  by  state-owned  companies  and  the  private  sector,  while  the  rest  would  come  from  the  federal  government.  Of  this  total,  R$40  billion
investment is for the sanitation sector.  

Public Bidding Procedures 

Pursuant to the Federal Public Bidding Law, the public bid process commences with publication by the granting authority in the federal, state or
municipal official gazette, as the case may be, and another leading Brazilian newspaper, of an announcement that it will carry out a public bidding
contest pursuant to provisions set forth in an edital (invitation to bid). The invitation to bid must specify, among other terms:  

  the purpose, duration and goals of the bid; 

  the participation of bidders, either individually or forming a consortium; 

  a description of the qualifications required for adequate performance of the services covered by the bid; 

  the deadlines for the submission of bids; 

  the criteria used for selection of the winning bidder; and 

  a list of the documents required to establish the bidder’s technical, financial and legal capabilities. The invitation to bid is binding on the 

granting authority. Bidders may submit their proposals either individually or in consortia, as provided for in the invitation to bid.  

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After receiving proposals, the granting authority will evaluate each proposal according to the following criteria, which must have been set forth in
the invitation to bid:  

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  the technical quality of the proposal; 

  lowest cost or lowest public service tariff offered; 

  a combination of the criteria above; or 

  the largest amount offered in consideration for the concession.  

The Edital bid the concession power to its terms.  

The provisions of the State Public Bidding Law parallel the provisions of the Federal Public Bidding Law.  

The Federal and State bidding laws will apply to us in the event that we seek to secure new concessions. Moreover, these bidding laws currently
apply to us with respect to obtaining goods and services from third parties for, among other things, our business operations or in connection with
our capital expenditure program, in each case subject to certain exceptions.  

Water Usage 

In July 2000, the National Water Agency, a federal agency under the Ministry of the Environment, was established to develop the National System
for Water Resources Management. According to existing law, federal and state agencies are authorized to collect charges related to water usage
from entities, such as us, for the abstraction of water from, or dumping of sewage into, water resources controlled by these agencies. The charges
collected by these agencies will be used to sponsor studies, programs, projects and constructions provided for in the Water Resources Plan (Plano 
de Recursos  Hídricos)  and  for  the  payment  of expenses concerning the creation of the  Federal  System for  Water Resources  Managing  (Sistema 
Nacional  de  Gerenciamento  de  Recursos Hídricos),  as  well  as  administrative  costs  regarding the bodies and  entities pertaining thereto and  they
may  be  loaned  or  provided  as  grants  or  subsidies  to  governmental  agencies  and  corporations,  including  us,  for  use  in  the  development  and
maintenance of water resources. 

The legislature of the State and the Federal Government enacted legislation under which we must pay charges to the Federal Government, the State
or an agency in respect of the use of water from specified sources. Since February 2004, we have been incurring expenses in connection with the
use of water from the Paraíba do Sul River Basin and since January 2006, from the Piracicaba, Capivari and Jundiaí River Basin.

State law establishes the basic principles governing the development and use of water resources in the State of São Paulo in accordance with the
State Constitution. These principles include:  

  rational utilization of water resources, with service to the population identified as having priority; 

  optimizing the economic and social benefits resulting from the use of water resources; 

  protection of water resources against actions which could compromise current and future use; 

  defense  against  critical  hydrographic  events  which  could  cause  risk  to  the  health  and  safety  of  the  population  or  economic  and  social

losses; 

  development of hydro transportation for economic benefit; 

  development  of  permanent  programs  of  conservation  and  protection  of  underground  water  sources  against  pollution  and  excessive 

exploitation; and 

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  prevention of erosion of land in urban and rural areas, with a view to protecting against physical pollution and silting of water resources.  

In  order  to  implement  these  principles,  authorizations  granting  a  right  of  use  are  required  from  the  relevant  public  authority  for  water  usage
(whether for collection, release of effluents or other otherwise), modification of the regime and modification of the quality or the quantity of the
existing water. In the case of rivers under the Federal Government’s domain (rivers crossing more than one state), the National Water Agency is the 
public authority which grants the authorization. With respect to the rivers under a state’s domain, the applicable state authority has jurisdiction to 
grant the right of use. In the State of São Paulo, the State Department of Water and Energy is the public authority responsible for granting such
authorizations. Our main operating units have been granted water usage rights, however we also have several operating units where water grants
are not fully in place. To help obtain the remaining water grants, we have established a Corporate Program for the Legalization of Grants.  

Under state law, implementation of any project that involves the use of surface or underground water requires prior authorization or licensing from
the competent government authority.  

The State Department of Water and Energy has, as its objectives, establishing (1) a policy for the use of water resources with a view to developing
the water business of the State, and (2) plans, studies and projects related to the integral use of water resources, directly or by means of agreements
with  third  parties.  The  State  Department  of  Water  and  Energy  has  established  the  standards  which  regulate  abstraction  of  water  from  water
resources in the State of São Paulo.  

State Law 12,183 of December 29, 2005 established the basis for the fees charged for the use of the water resources owned by the State of São
Paulo. To implement this fee, the law provides for, among other things, the participation of the Basin Committees, the creation of Basin Agencies
and the organization of a registered list of water resource users. The Committee’s proposals regarding the amounts to be charged at the basins must 
be approved by the State Water Resource Council, with the approval and setting of the amounts to be applied at each water basin formalized by a
decree issued by the State Governor. Article 4 of the law also established that, until December 2009, the fees charged for the use of water resources
by public or private basic sanitation (water and sewage) companies will correspond to 50% of the established amount, provided these companies
demonstrate they are making investments with their own funds in studies, projects and works aimed at the removal and treatment of sewage. The
law  also  provides  for  penalties  for  the  failure  to  pay  fees  that  range  from  a  fine  of  2%  and  interest  on  arrears  on  the  value  of  the  debt  to  the
suspension  or  loss  of  water  resource  use  rights,  which  are  imposed  at  the  discretion  of  the  water  resource  authority  and  in  accordance  with  the
applicable regulations.  

Water Quality 

Administrative Rule No. 518/04, issued by the Ministry of Health of the Federal Government provides the standards for drinking water for human
consumption  in  Brazil.  This  rule  conforms  to  the  U.  S.  Safe  Drinking  Water  Act  and  the  regulations  enacted  by  the  U.S.  70  Environmental
Protection Agency, establishing rules for sampling and limits related to substances that are potentially hazardous to health.  

In  compliance  with  Brazilian  law,  the  physical-chemical,  organic  and  bacteriological  analyses  carried  out  for  water  quality  control  follow  the
methodologies of the “Standard Methods for Water and Wastewater” (21st edition) of the American Water Works Association.

Decree No. 5,440/05 provides for the obligation to disclose the quality of water to consumers. We have been complying with these regulations by
publishing the relevant information in monthly bills and annual reports delivered to all consumers that we serve.  

Sewage Requirements 

State  law  sets  forth  regulations  regarding  pollution  control  and  environmental  protection  in  the  State  of  São  Paulo  establishing  limits  for  the
discharge  of  emissions and  disposal  of  waste that  impact  the  water, air  and  soil.  State  law provides  that, in  areas  in  which  there  exists  a public
sewage system, all effluents of a “polluting source” must be discharged to such system. It is the responsibility of the polluting source to connect 
itself to the public sewage system. 

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All effluents to be discharged are required to meet certain characteristics, which allow such effluents to be treated by our treatment facilities and
discharged in an environmentally safe manner. Effluents which exceed such characteristics are prohibited from being discharged  into the public
sewage system. State legislation also establishes that liquid effluents, except those related to basic sanitation, be subjected to pre-treatment so that 
they meet the required mandatory levels before being discharged into the public sewage system. 

Environmental Sanitation Technology Company (Companhia de Tecnologia de Saneamento Ambiental) or CETESB, a State-controlled company 
under the jurisdiction of the Secretariat of the Environment of the State, is authorized under State law to monitor discharges of pollutants into the
environment  and  to  enforce  the  requirements  of  State  law.  CETESB  is  responsible  for  operating  Installation  and  Operation  Licenses  issued  to
sewage treatment facilities and other pollution sources. We have a program aimed at cleaning up the Tietê River, called the Tietê Project, which
was launched in 1992 and is considered the largest basic sanitation program ever implemented in Brazil. The Tietê Project is included in our capital
expenditure  program,  and  involves  work  for  the  collection,  removal  and  treatment  of  sewage  to  expand  and  optimize  the  basic  sanitary  sewage
system in the São Paulo Metropolitan Region.   

The disposal of sludge must also meet the requirements of State law. CETESB also regulates the discharge of effluents into bodies of water and
must approve all of our treatment facilities in accordance with federal regulations. Water resource legislation in the State of São Paulo establishes
the  charging  of  fees  for  the  discharge  of  treated  effluents  into  bodies  of  water,  however,  this  provision  is  currently  in  the  final  stages  of
implementation. 

Some municipalities of the State of São Paulo have enacted municipal laws requiring us to charge a fixed fee, and not a tariff, for sewage services
being provided. To date, we have not been the subject of enforcement of these laws.  

Tariff Regulation in the State of São Paulo

The tariffs we set for our services are to some extent subject to Federal and State regulation.  

On December 16, 1996, the Governor of the State issued a decree which approved the existing tariff system and allowed us to continue to set our
own tariffs. We used to set our tariffs based on the general objectives of maintaining our financial condition and preserving “social equity” in terms 
of the provision of water and sewage services to the population while providing a return on investment. The Governor’s decree also directs us to 
apply the following criteria in determining our tariffs:  

  category of use; 

  capacity of the water meter; 

  characteristics of consumption; 

  volume consumed; 

  fixed and floating costs; 

  seasonal variations; and 

  social and economic conditions of residential customers.  

In determining tariffs, we may also consider the costs associated with the exploitation of basic sanitation services, depreciation, provision for bad
debts,  amortization  of  expenses  and  adequate  remuneration  for  investments.  We  usually  submit  new  tariffs  to  the  Governor  of  the  State  for
approval. We implemented a new readjustment formula designed to better reflect costs in August 2003. See “—Business Overview—Tariffs.”

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However,  with  the  enactment  of  Federal  Laws  No.  11,445/07  and  No.  11,107/05,  we  were  prohibited  from  planning,  inspecting  and  regulating
services, which included determining the tariff policy to be adopted. These activities are to be exercised by the entity of the State that controls the
services, which, with the exception of the responsibility for planning, may delegate the exercise of the other applicable responsibilities. Pursuant to
Federal Law No. 11,445/07, tariff regulation is to be performed by an independent regulatory entity. Municipalities can choose to delegate tariff
regulation to the State´s independent regulatory agency (ARSESP) instead of creating their own regulatory agency. Considering (i) that, with the
sole exception of the Municipality of Lins, no other municipality has decided to create its own regulatory entity so far and that many municipalities
have already delegated regulation to ARSESP, we believe that at least in the near future ARSESP will be in charge of regulating tariffs for most of
the concession contracts and program contracts entered into by us. However, we cannot be certain that other municipalities will not take the same
decision as Lins.  

Regarding tariff regulation for the year of 2008, we believe there will be no major changes in the policy currently in use by us, considering that
ARSESP has just been established and will probably have insufficient time to implement a new tariff formula regulation for 2008.

We maintain three different tariff schedules, depending upon whether a customer is located in the São Paulo Metropolitan Region or the interior or
coastal  regions  comprising  our  Regional  Systems.  There  are  four  levels  of  volume  consumed  for  each  category  of  customer,  except  for  the
residential  social  and  favelas (shantytowns)  that  present five  levels  of  volume consumed.  Customers are  billed  on a  monthly  basis.  We  are also
authorized to enter into individual contracts with certain customers, such as municipalities, to sell water or sewage services on a wholesale basis.  

Our tariff system also establishes criteria for billing and collection of services and for the publicity to be given to such criteria and tariffs. Tariffs
are published in the Official Gazette of the State of São Paulo (Diário Oficial do Estado de São Paulo).  

We may be subject to a federal law which, in the case of water and sewage services, provided pursuant to certain concessions, effectively prohibits
tariffs that would produce a return on assets in excess of 12% per annum. Return on assets is calculated using operating income (before financial
and  certain  other  expenses)  measured  against  operational  assets  (property,  plant  and  equipment  and  certain  other  assets),  based on  our  financial
statements  prepared  in  accordance  with  the  Brazilian  Corporate  Law  Method.  We  could  be  subject  to  the  above  return  on  assets  limitation  in
adjusting tariffs because substantially all of our concessions were granted during the period in which these rate regulations were in effect. We are
not,  however,  subject  to  such  limitations  in  setting  tariffs  under our  newer  concessions. The  above  return  on assets limitation  does  not apply to
renewals of existing concessions.  

In addition to the specific regulation mentioned above, we are also subject to general rules such as periodic readjustments established by Law No.
9,069/95 which established, among other things, the Real Plan.

Governmental Restrictions on Incurrence of Debt 

On  June  30,  1998,  the  Central  Bank  issued  a  resolution  amending  certain  conditions  that  must  be  observed  with  respect  to  the  external  credit
operations (i.e., foreign currency borrowings) of states, the Federal District of Brasilia, municipalities and their respective autarquias (agencies), 
foundations and non-financial companies, including us. This resolution provides, among other things, that, with certain exceptions applicable to the
importation of goods and services:  

  the  proceeds  of  external  credit  operations  must  be  exclusively  used  to  refinance  outstanding  financial  obligations  of  the  issuer,  with 
preference  given  to  those  obligations  that  have  a  higher  cost  and  a  shorter  term,  and,  until  used  for  such  purposes,  the  proceeds  shall 
remain deposited, as directed by the Central Bank, in a pledged account; and 

  the  total  amount of the contractual obligation  must  be  subject to monthly  deposits in  a  pledged account, equal to  the  total  debt service 

obligation, including principal and interest, divided by the number of months that the obligation is to be outstanding.  

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The Central Bank resolution further provides that the requirements described above do not apply to financing transactions involving multilateral or
official organizations such as the World Bank, the Inter-American Development Bank or the JBIC. The Central Bank regulation implementing this
resolution provides, among other things, that the account referred to in the first bullet point above must be an account opened in a federal financial
institution,  which  is  to  hold  such  funds  until  released  for  the  purpose  of  refinancing  outstanding  obligations  of  the  issuer.  The  Central  Bank
regulation  further  provides  that  the  account  described  in  the  second  bullet  point  above  must  be  an  escrow  account  to  be  opened  in  a  federal
financial institution and to secure the payment of principal and interest on the external debt.  

Our external credit transactions are also subject to the approval of the National Treasury Secretariat and the Central Bank, which, after reviewing
the financial terms and conditions of the transaction, will issue an approval for the closing of the foreign exchange transaction relating to the entry
of the funds into Brazil and, following such entry and at our request, an electronic certificate of registration through which all scheduled payments
of  principal,  interest  and  expenses  will  be  remitted  by  us.  The  electronic  certificate  of  registration  grants  the  borrower  access  to  the  market  for
foreign exchange.  

Finally, our external credit transactions are also subject to the prior approval of the Secretariat of Finance of the State.  

Lending Limits of Brazilian Financial Institutions 

The National Monetary Council resolutions limit the amount that Brazilian financial institutions may lend to public sector companies, such as us.
Financing of projects which are put up for international bid and any financing in reais provided to the Brazilian counterpart of such international 
bids are excluded from these limits.  

4.C. Organizational structure 

Not applicable.  

4.D. Property, Plant and Equipment 

Our principal properties consist of reservoirs, water treatment facilities, water distribution networks consisting of water pipes, water mains, water
connections and water meters, sewage treatment facilities, and sewage collection networks consisting of sewer lines and sewage connections. As of
December 31, 2007, we owned 198 water treatment facilities and 62,318 kilometers of water pipes and mains, 461 sewage treatment facilities and
40,608 kilometers of sewer lines, as well as 16 water quality control laboratories.  

We own our headquarters building and all other major administrative buildings. We have pledged some of our properties as collateral to the Federal
Government in connection with a long-term financing transaction we have entered into with the World Bank that was guaranteed by the Federal
Government. We have also pledged part of our assets in the amount of R$249.0 million as collateral with respect to our indebtedness under the
Special Program for Payment of Federal and Social Security-Related Taxes in Installments (Programa de Parcelamento Especial para Impostos 
Federais  e Previdenciários),  or  PAES program,  as  set forth by  Law  No.  10,684,  dated  May 30, 2003.  Three  of our  properties  in  the  amount of
R$60.5  million  were  pledged  as  collateral  for  the  financing  granted  by  the  International  Bank  for  Reconstruction  and  Development,  the  last
installment related to this financing was paid in April, 2007, but so far the Federal Government has not released the properties.

As  of  December  31,  2007,  the  total  net  book  value  of  our  property,  plant  and  equipment  was  R$14,567.9  million,  including  concession  assets
acquired (intangible assets).

All of our material properties are located in the State of São Paulo.  

ITEM 4A. UNRESOLVED STAFF COMMENTS

Not applicable.  

56 

ITEM 5. OPERATING AND FINANCIAL REVIEW AND PROSPECTS 

Table of Contents

The  following  management’s  discussion  and  analysis  of  financial  condition  and  results  of  operations  should  be  read  in  conjunction  with  our
audited  financial  statements  included  in  this  annual  report.  This  annual  report  contains  forward-looking  statements  that  involve  risks  and
uncertainties.  Our  actual  results  may  differ  materially  from  those  discussed  in  the  forward-looking  statements  as  a  result  of  various  factors, 
including, without limitation, those set forth in “Risk Factors”.

The  financial  statements  in  this  annual  report  have  been  prepared  in  accordance  with  the  Brazilian  Corporate  Law  Method,  which  differs  in
certain  significant respects  from  U.S.  GAAP. We  have  included  a  discussion below  of the  material  differences between  the Brazilian Corporate
Law Method and U.S. GAAP related to each critical accounting policy in our audited financial statements. For additional information regarding
other differences between the Brazilian Corporate Law Method and U.S. GAAP, please see note 26 to our financial statements. 

In  the  following  discussion,  references  to  increases  or  decreases  in  any  period  are  made  by  comparison  with  the  corresponding  prior  period,
except as the context otherwise indicates.

5.A. Operating and Financial Review and Prospects 

Overview 

We operate water and sewage systems in the State of São Paulo, including in the City of São Paulo, Brazil’s largest city, and in more than one-half
of the other municipalities in the State of São Paulo. We also make wholesale sales of water to six additional municipalities in which we do not
operate water systems. 

The  São  Paulo  Metropolitan  Region,  which  includes  the  City  of  São  Paulo,  is  our  most  important  service  territory.  With  a  population  of
approximately 19.7 million, the São Paulo Metropolitan Region accounted for approximately 75.5%, 75.8% and 75.8% of our gross revenue from
sales and services in 2005, 2006 and 2007, respectively. Approximately 70.8% of the property, plant and equipment reflected on our balance sheet
as of December 31, 2007 is located in this region. In an effort to respond to demand in the São Paulo Metropolitan Region and because the region
represents  the  principal  opportunity  to  increase  our  net  revenue  from  sales  and  services,  we  have  dedicated  a  major  portion  of  our  capital
expenditure  program  to  expand  the  water  and  sewage  systems  and  to  increase  and  protect  water  sources  in  this  region.  Our  capital  expenditure
program is our most significant liquidity and capital resource requirement. 

Factors Affecting Our Results of Operations 

Our results of operations and financial condition are generally affected by our ability to raise tariffs, general economic conditions in Brazil and, in
some previous periods, meteorological conditions. In 2005, hydrological conditions improved and with the increase in efficiencies in our system,
we were able to increase capacity and production. We were therefore able to increase revenues reflecting both operational improvement and greater
demand arising from the end of our water usage reduction bonus program. In 2006, our results of operations and financial condition were affected
by an increase in the invoiced volume of water and sewage, as well as by a decrease in our financial expenses, as a result of our strategy to actively
manage our capital market debts. Additionally, in 2006, our results of operations and financial condition was negatively affected by the adjustment
of R$ 93.8 million, as a result of an analysis and conciliation procedure related to the accounting balance of our accounts receivable. In 2007, the
volume of lawsuit decisions allowed our management to evaluate the contingency process and based on this evaluation, we quantified the lawsuits
involving customers, considering the most recent history of favorable and unfavorable court decisions to improve our estimate of liability. 

57 

Effects of Tariff Increases 

Our results of operations and financial condition are highly dependent upon our ability to increase tariffs for our water and sewage services. Since
the passing of Federal Law 11,445/07 on December 5, 2007, as a general rule, ARSESP will be responsible for setting, adjusting and reviewing
tariffs, taking into consideration among other factors the following: 

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  political considerations arising from our status as a State-controlled company; 

  anti-inflation measures promulgated by the Federal Government from time to time; and 

  federal laws that in some circumstances limit to 12.0% per year the return on the assets of some of our concessions. 

For the fiscal year of 2008, we believe that ARSESP will adopt the adjustment formula that we have been using since August 2003.

Tariffs have often failed to keep up with inflation during periods of high inflation in the past. During the past few years, we generally have been
able  to  raise  tariffs  in  line  with  increases  in  cost  of  sales  and  services  and  operating  expenses  and  to  support  our  liquidity  and  capital  resource
requirements. In 2000, we did not raise tariffs due to the State policy for that year of not increasing tariffs for many public services. In June 2001,
however, we increased our average tariff by approximately 13.1%, which was broadly in line with prevailing inflation rates in Brazil since mid-
1999 as measured by the consumer price index, and in August 2002, we increased our tariffs by 8.2% . In August 2003, we increased our tariffs for
water and sewage services by 18.9%, in August 2004 we raised our tariffs for water and sewage services by 6.8% and in August 2005 we raised our
tariffs for water and sewage services by 9.0% . In August 2006, we increased our tariffs by 6.71% . In September 2007, we applied a nonlinear
adjustment of 4.12% for categories of use and of 3.74% for tariffs for the supply of water and collection of sewage for consumption greater than 20
cubic meters for non-residential categories of use. 

Since August 2003, our tariffs have been determined using a transparent formula which accounts for inflation, covers our operating costs and other
expenses and provides for a return on investment. Tariffs have historically been adjusted once a year and for periods of at least 12 months. 

As of December 2007, readjustment of our tariffs will continue to be set each year, but will be dependent on the parameters established by Federal
Law 11,445/07 as well as regulatory agency parameters. Our readjustments will be announced 30 days prior to the effective date of the new tariffs,
which will occur in September of each year, and will remain in place for a period of at least 12 months. Regarding tariff regulation for the year
2008, we believe there will be no major changes in the policy currently in use by us, considering that ARSESP has just been established and will
probably have insufficient time to implement a new tariff formula regulation for 2008.  

The following table sets forth, for the periods indicated, the percentage increase of our tariffs, as compared to three inflation indices:  

2004

Year ended December 31,
2006
2005

2007

Increase in Average Tariff(1)
Inflation – Índice de Preços ao Consumidor – IPC – 
FIPE (Consumer Price Index)
Inflation – Índice de Preços ao Consumidor Ampliado – 
IPCA (Extended Consumer Price)
Inflation – Índice Geral de Preços do Mercado IGP-M 
(General Price Index-Market)
________________________________________ 
(1) Tariff increases for each period took effect in August of such year with the exception of 2007, when the increases took effect in September. 
Sources: Central Bank, Fundação Getúlio Vargas and Fundação Instituto de Pesquisas Econômicas.

12.4% 

3.8%  

3.1%  

2.5%  

6.7%  

1.2% 

5.7% 

6.8% 

7.6% 

6.6% 

4.5% 

9.0% 

4.12% 

4.4% 

4.5% 

7.7% 

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Effects of Brazilian Economic Conditions 

As a company with all of its operations in Brazil, our results of operations and financial condition are affected by general economic conditions in
Brazil,  particularly  by  currency  exchange  rate  movements,  inflation  rates  and  interest  rate  levels.  For  example,  the  general  performance  of  the
Brazilian  economy  affects  demand  for  water  and  sewer  services,  and  inflation  affects  our  costs  and  our  margins.  The  Brazilian  economic
environment has been characterized by significant variations in economic growth rates.  

General Economic Conditions. In 2002, several negative economic factors adversely affected consumer confidence levels in Brazil. Prior to and
subsequent to the presidential elections in November 2002, there was substantial uncertainty relating to Brazil’s own political and economic future. 

In  2003,  the  new  administration  largely  continued  the  macroeconomic  policies  of  the  previous  administration.  The  real  appreciated  by  22.3% 
against  the  U.S.  dollar  in  2003  to  R$2.8892  per  US$1.00  as  of  December  31,  2003. Inflation  for  2003,  as  measured  by  the IGP-M, was  8.7% . 
However, real gross domestic product decreased by 0.2% during 2003 largely because the very high interest rates that prevailed at the beginning of
2003  also  constrained  economic  growth.  The  Brazilian  economy  showed  signs  of  improvement  in  the  third  and  fourth  quarters  of  2003  that
continued  through  2004.  During  2004  real  gross  domestic  product  grew  by  5.2%,  inflation  was  12.4%  as  measured  by  the  IGP-M  and  the  real
appreciated 8.8% against the U.S. dollar as the real/U.S. dollar exchange rate decreased to R$2.6544 as of December 31, 2004.  

The  principal events affecting the  Brazilian macroeconomics in 2005 were  the corruption allegations against government officials and Brazilian
house  representatives  of  the  current  president's  support  base,  and  the  Central  Bank’s  efforts  to  meet  the  goal  of  5.1%  annual  inflation,  which 
resulted in the maintenance of high levels of interest rates, starting from November, the Central Bank has begun a process of reducing the official
interest rate in order to encourage economic growth. As of December 31, 2005, the official interest rate was 18.00% .  

In  2006,  the  appreciation  trend  continued  and  the  real appreciated  by  7.5%  against  the  U.S.  dollar  between  December  31,  2005  and  2006.
Notwithstanding the real’s appreciation, Brazil’s trade surplus was US$46.1 billion. The average unemployment rate increased from 8.3% for the
year ended December 31, 2005, to 10.0% for the year ended December 31, 2006, in the principal metropolitan regions of Brazil, according to IBGE
estimates. 

In  2007,  the  appreciation  trend  continued  and  the  real appreciated  by  20.7%  against  the  U.S.  dollar.  Notwithstanding  the  real’s appreciation, 
Brazil’s  trade  surplus  was  US$40.0  billion.  Brazil  finished  2007  with  US$180  billion  in  currency  reserves.  The  average  unemployment  rate
decreased from 8.4% for the year ended December 31, 2006, to 7.4% for the year ended December 31, 2007, in the principal metropolitan regions
of Brazil, according to IBGE estimates. In 2007, the inflation rate, as measured by the IGP-M, was 7.7% as compared to 3.8% in 2006.  

Interest Rates. Interest rate levels in Brazil are closely linked to exchange rate movements and inflation rates. High domestic interest rates result in
increases  in  our  financial  expenses  and  also  negatively  affect  our  ability  to  obtain  financing,  on  a  cost-effective  basis,  in  domestic  capital  and 
lending markets. As a result, we may continue to require substantial amounts of foreign currency-denominated debt in order to satisfy our liquidity 
and capital resource requirements, which increase our exposure to exchange rate movements as discussed below.  

The Central Bank increased the official interest rate to 26.3% on February 19, 2003 and decreased it to 15.8% on April 14, 2004. The Central Bank
increased the official interest rate to 17.74% on December 15, 2004. During the first four months of 2005, the Central Bank continued to raise the
official  interest  rate,  which  reached  19.5%  on  April  20,  2005.  However,  starting  from  November  of  2005,  the  Central  Bank  began  a  process  of
reducing the official interest rate. On December 31, 2005, the official interest rate was 18.0% . In 2006, the Central Bank continued to reduce the
official  interest  rate,  reaching  13.19%  on  December  31,  2006.  In  2007,  the  Central  Bank  continued  to  reduce  the  official  interest  rate,  reaching
11.18% on December 31, 2007. In 2008 the Central Bank began a process of increasing the official interest rate. Since the beginning of 2008, the
rate has been increased twice. On June 30, 2008, the official interest rate, was 12.25% . We have not utilized any derivative financial instruments,
or any hedging instruments to mitigate interest rate fluctuations. We do, however, continually monitor market interest rates in order to evaluate the
possible need to refinance our debt.  

59 

Inflation. Inflation affects our financial performance by increasing our costs of services rendered and operating expenses. In addition, all of our
real-denominated  debt  is  indexed  to  take  into  account  the  effects  of  inflation.  Most  of  our  real-denominated  debt  provides  for  inflation-based
increases in the respective principal amounts of that debt, which increases are determined by reference to the daily government interest rate (Taxa
Referencial-TR) plus an agreed margin. We cannot assure that we will be able, in future periods, to increase tariffs to offset, in full or in part, the
effects of inflation.  

The following table shows Brazilian inflation for the periods indicated:  

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Inflation – Consumer Price Index (IPC-FIPE)
Inflation – General Price Index- 
Market (IGP-M)
________________________________________ 
Source: Fundação Getúlio Vargas.   

2004

6.6% 

12.4% 

Year ended December 31,
2006
2005

4.5% 

1.2% 

2.5%  

3.8%  

2007

4.4% 

7.7% 

Currency Exchange Rates. We had total foreign currency-denominated indebtedness of R$1,242.3 million as of December 31, 2007. In the event
of  significant  devaluations  of  the  real  in  relation  to  the  U.S.  dollar  or  other  currencies,  the  cost  of  servicing  our  foreign  currency-denominated
obligations would increase as measured in reais, particularly as our tariff and other revenue are based solely in reais. In addition, any significant 
devaluation of the  real will increase our financial  expenses as a result  of foreign exchange  losses that we must  record. For  example, the  34.3%
devaluation of the real in 2002 increased our financial expenses and negatively affected our overall results of operations for that year. In contrast,
in 2003, the real appreciated 22.3% against the U.S. dollar, which resulted in a foreign exchange gain of R$540.6 million. The 8.8% appreciation
of the real against the U.S. dollar in 2004 led to a foreign exchange gain of R$179.7 million. The 13.4% appreciation of the real against the U.S. 
dollar in 2005 led to a foreign exchange gain of R$312.1 million. The 9.5% appreciation of the real against the U.S. dollar in 2006 led to a foreign 
exchange gain of R$96.1 million. The 20.7% appreciation of the real against the U.S. dollar in 2007 led to a foreign exchange gain of R$188.4
million.  

The following table shows the devaluation (appreciation) of the real against the U.S. dollar, the period-end exchange rates and average exchange 
rates for the periods indicated:  

Devaluation (appreciation) of the real versus U.S. dollar 
Period-end exchange rate – US$1.00 
Average exchange rate – US$1.00(1)
________________________________________ 
(1)Represents the average for period indicated.  
Source: The Central Bank.  

2004

(8.8)% 
R$2.6544 
R$2.9259 

Year ended December 31,
2006
2005

(13.4)% 
R$2.3407 
R$2.4341 

(9.5)%  
R$2.1380  
R$2.1771  

2007

(20.7%)
R$ 1.7713 
R$ 1.9483 

At times, we enter into forward exchange transactions and financial funding transactions in reais to mitigate foreign currency exposure. In addition, 
we  have  monitored,  overseen  and  controlled  our  indebtedness  denominated  in  foreign  currency,  taking  advantage  of  market  opportunities  to
improve the profile of our indebtedness and reduce our costs. On December 31, 2007 we had no forward exchange transactions.  

Effects of Drought

Brazil experienced a prolonged and severe drought during 2000 and 2001, although historically droughts have not impacted all of our water supply
systems equally. During this period, the São Paulo Metropolitan Region, in particular, faced its worst drought in 65 years. As a result, from mid-
June to mid-September in 2000, we rationed water in the south of the São Paulo Metropolitan Region, affecting approximately 3.5 million people,
or approximately 20% of the total population of this region. Under this rationing, water was made available to our customers for only two out of
every three days. During this rationing period, we also reduced our total water production by approximately 8%. From April 2001 through January
2002, we rationed water in the west of the São Paulo Metropolitan Region, affecting approximately 300,000 people. Under this rationing, water
was made available to these 300,000 customers for only 40 out of every 78 hours. Throughout 2003 rain levels were below average resulting in a
weak replenishment of our reservoirs, particularly in the Cantareira system, the largest water supply system in the São Paulo Metropolitan Region.
From October to December 2003, we rationed water on the western part of the São Paulo Metropolitan Region, served by the Alto Cotia system,
affecting approximately 450,000 people, or approximately 2% of the region’s population. Under this rationing, water was available to those people 
for three days, followed by two days of rationing. During this period our total water production volume was reduced by 0.8% . As a result of the
drought, our revenue declined  as our volume of  water billed decreased,  and our costs increased  because of required expenditures  to  protect and
develop water sources and to preserve water quality. The impact that droughts have may vary across our different systems, which may allow us to
mitigate the effects of any particular drought. The effects of the drought continued to affect our systems through 2004. In order to minimize the
effects of this drought we implemented a water usage reduction bonus program. Due to this program and the return to normal rainfall levels that
occurred  throughout  2004  and  early  2005,  the  conditions  of  our  reservoirs  have  improved.  In  2006  the  rainfall  was  sufficient  to  enable  us  to 
maintain our reservoirs at historical levels. In 2007, the rainfall exceeded that of 2006 resulting in an increase in the volume of water held in our
reservoirs thereby providing a cushion to meet demand.  

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Effects of the Water Usage Reduction Bonus Program 

In order to encourage customers to use less water in drought conditions, in 2004 we instituted a “bonus” system, rewarding customers who reduced
their water consumption  by  specified  amounts.  The  “bonus”  was  shown  on  each  customer’s  bill  as  a  discount, and  was  calculated  based  on  the 
customer’s water usage each month, and applied to decrease the amount payable by that customer.  

This water usage reduction program took effect on March 15, 2004 and ended on September 15, 2004, and had the following effects:

  customers reduced their overall water usage, leading to lower revenues from lower volumes of water and sewage services; 

  we discounted the amounts payable by customers who successfully lowered their water usage; and 

  many customers, by reducing their water usage, shifted their households into a lower tariff category.  

Our  results  for  2004  reflect  the  impact  of  these  effects,  all  of  which  lowered  our  revenue  from  March  15,  2004  to  September  15,  2004,  thus
affecting bills sent out through October. In 2004, the volume of water and sewage invoiced decreased by 1.4%, and our revenue from water and
sewage  services  provided  to  the  São  Paulo  Metropolitan  Region  decreased  by  R$74.1  million,  as  a  result  of  our  water  reduction  program.  This
reduction was offset in part by the positive impact of tariff readjustments.  

Critical Accounting Policies, Practices and Estimates 

Critical accounting policies and practices are those that are both (1) important to the portrayal of our financial condition and results of operations
and (2) require management’s most difficult, subjective or complex judgments, often as a result of the need to make estimates about the effect of
matters  that  are  inherently  uncertain.  As  the  number  of  variables  and  assumptions  affecting  the  possible  future  resolution  of  the  uncertainties
increase, those judgments become even more subjective and complex. In order to provide an understanding about how our management forms its
judgments about future events, including the variables and assumptions underlying the estimates, and the sensitivity of those judgments to different
circumstances, we have identified the critical accounting policies and practices discussed below.  

Our management discussion and analysis of financial condition and results of operations are based upon our primary financial statements, which
have  been  prepared  in  accordance  with  the  Brazilian  Corporate  Law  Method,  which  differs  in  significant  respects  from  U.S.  GAAP.  We  have
included  a  discussion  on  material  differences  between  the  Brazilian  Corporate  Law  Method  and  U.S.  GAAP  related  to  each  critical  accounting
policy in our audited financial statements.  

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Allowance for Doubtful Accounts 

We record allowance for doubtful accounts in an amount that our management considers sufficient to cover probable losses, based on an analysis of
customer accounts receivable. We record an allowance for doubtful accounts for balances receivable in excess of R$5,000 and overdue for more
than 360 days, and for balances receivable in excess of R$30,000 and overdue for more than 360 days as to which we have commenced judicial
collection proceedings. The amount is thus calculated and adjusted when it is in excess or insufficient, based on an aging analysis of receipts and
on the expected recovery at different categories of customers. Accounts receivable balances under R$5,000 and overdue for more than 180 days are
written off as a direct charge to income. 

Provisions  for  the  allowance  for  doubtful  accounts  are  included  in  selling  expenses,  net  of  recoveries.  The  net  charge  to  this  allowance  was
R$255.3 million in 2005, R$411.9 million in 2006 and R$323.3 millions in 2007. 

Our methodology for determining the allowance for doubtful accounts receivable requires significant estimates, considering a number of factors
including historical collection experience, current economic trends, estimates of forecast write-offs, the aging of the accounts receivable portfolio 
and other factors. While we believe that the estimates we use are reasonable, actual results could differ from those estimates.

In  addition,  we  have  substantial  assets  consisting  of  amounts  owed  by  the  State.  These  amounts  consist  primarily  of  accounts  receivable  for
services, reimbursement for pensions paid. See “Item 7.B. Major Shareholders and Related Party Transactions—Related Party Transactions”. We 
do not reserve against any of these amounts owed by the State due to the following factors:  

  we do not expect to incur losses from these accounts receivable; and 

  we  entered  into  agreements  in  September  1997,  December  2001  and  March  2004  under  which  the  State  has  committed  to  settle  the 
outstanding  amounts  due  to  us  described  in  these  agreements  by  applying  dividends  declared  by  us  to  the  remaining  balance  of  the
accounts receivable owed by the State or its controlled entities. The second amendment signed on December 2007, does not require the 
application of dividends to offset accounts receivable from the State.  

As of December 31, 2007, the amounts owed to us by the State for the provision of water and sewage services included R$134.9 million which was
considered overdue as  of  February  29, 2004. As of  December  31,  2007 the State  owed us an additional  R$311.5 million  in  accounts receivable
related to the provision of water and sewage services rendered from February 2004. With respect to reimbursement for pensions paid on behalf of
the State, the State owed us R$879.1 million as of December 31, 2007 (R$320.6 million of which was acknowledged by the State in an agreement
with us subject to a further audit which has not yet occurred). We have not established any provisions for any amounts due to us by the State. 

For U.S. GAAP purposes, the amounts receivable from the State for pensions paid is not recorded as accounts receivable, but rather is included as
part of our estimated pension and other post-retirement obligations. Only amounts effectively reimbursed by the State are presented as additional
paid-in  capital.  No  additional  differences  have  been  identified  between  accounting  policies  for  accounts  receivable  and  allowance  for  doubtful 
accounts under the Brazilian Corporate Law Method and U.S. GAAP.  

Financial Instruments Fair Value 

In accordance with CVM Instruction No. 235/95, we estimated the fair value of the financial instruments, using available market information and
appropriate  estimation  methodologies  (see  note  18  to  our  financial  statements).  However,  considerable  judgment  is  required  to  interpret  market
data and to develop the estimates of fair value. Accordingly, the estimates presented  are not necessarily indicative of the amounts that could be
realized in a current market exchange. The use of different market assumptions and/or valuation methodologies may have a material effect on the
estimated  fair  values.  As  of  December  31,  2007,  the  impact  disclosed  by  us  related  to  the  fair  value  of  our  financial  instruments  was  a  loss  of
R$17.7 million.  

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Indemnities Receivable 

Indemnities receivable is a long-term asset representing amounts receivable from the Municipalities of Diadema and Mauá as indemnification for
the unilateral withdrawal by those authorities of our water and sewage service concessions in 1995. As of December 31, 2007 this asset amounted
to R$148.8 million. 

Under our concession contracts we invested in the construction of water and sewage systems in these municipalities to meet our concession service
commitments.  Upon  the  unilateral  termination  of  the  Diadema  and  Mauá  concessions,  our  assets  were  impounded  by  the  municipal  authorities,
which  took  on  the  responsibility  of  providing  water  and  sewage  services  in  these  areas.  At  that  time,  we  reclassified  our  property,  plant  and
equipment balances relating to the impounded assets to long-term assets (indemnities receivable) and recorded impairment charges to reduce the
carrying  value  of  the  assets  to the estimated  recoverable amounts for  which  we  had  contractually  agreed as fair  compensation  with  the  relevant
authorities.  

Our  rights  to  the  recovery  of  these  amounts  are  being  disputed  by  the  municipalities  and  no  amounts  have  been  received  to  date.  Based  on  the
advice of legal counsel, we continue to believe that we have the right to receive such amounts and we continue to monitor the status of the legal
proceedings. However, the ultimate amounts to be received, if any, will most likely be subject to a final court decision. As such, actual amounts
received could differ from those recorded.  

For more information, see note 7 to our financial statements. 

No  differences  have  been  identified  between  accounting  policies  on  compensation  for  concession  termination  adopted  under  the  Brazilian
Corporate Law Method and U.S. GAAP.  

Property, Plant and Equipment

Valuation of Long-Lived Assets. We review long-lived assets, primarily buildings, water and sewage system assets and acquired concession assets
to be held and used in our business, for the purpose of determining and measuring impairment on a recurring basis or when events or changes in
circumstances indicate that the carrying value of an asset or group of assets may not be recoverable. Under the Brazilian Corporate Law Method,
we evaluate possible impairment by determining whether projected future operating income is sufficient to absorb the depreciation or amortization
of long-lived assets, within the context of the balance sheet as a whole.  

Studies supporting the write-offs for obsolescence and abandonment of projects are conducted in the accounting period of the write-offs based on 
undiscounted cash flow projections, and approved by our board of directors. We monitor the carrying value of our property, plant and equipment
on  an  on-going  basis  and  adjust  the  net  book  value  to  assure  future  projected  operations  will  be  sufficient  to  recover  the  carrying  value  of  the
assets.  Depreciation  is  provided  using  the  straight-line  method  based  on  the  estimated  useful  lives  of  the  underlying  assets.  When  possible, 
depreciation rates are adjusted to take account of changes in estimated prospective depreciable lives as assets are replaced.  

U.S.  GAAP  Statement  of  Financial  Accounting  Standards,  or  SFAS,  No.  144,  “Accounting  for  the  Impairment  of  Long-lived  Assets,”  requires 
companies to periodically evaluate the carrying value of long-lived assets to be held and used, and for long-lived assets to be disposed of, when 
events  and  circumstances  warrant  such  a  review.  Companies  are  required  to  identify  the  smallest  unit,  or  group,  of  assets  at  which  cash  flows
generated by the group can be measured. The projected undiscounted cash flows from each such asset group is compared to its carrying value. For
those assets for which the projected cash flows are not sufficient to recover the carrying values, a loss is recognized to the extent that the carrying
value exceeds the fair market value of the assets.  

In evaluating impairment of our long-lived assets, we make significant assumptions and estimates regarding matters that are inherently uncertain,
including projections of future operating income and cash flows, future growth rates, and the remaining useful lives of the assets, among others. In
addition, projections are computed over an extended period of time, which subjects those assumptions and estimates to an even larger degree of
uncertainty. While we believe that the estimates we use are reasonable, the use of different assumptions could materially affect our valuations.  

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No adjustments have been included in the reconciliation from the Brazilian Corporate Law Method to U.S. GAAP to take account of differences
between the measurement criteria, because no impairment provisions were required based on our analysis of cash flows. Losses on the write-off of
property,  plant  and  equipment  arose  primarily  from  adjustments  upon  withdrawal  of  concession  assets,  construction-in-progress  projects  which 
were deemed no longer to be economically feasible and out of service write-offs.  

Depreciation of Property, Plant and Equipment. Depreciation of our property, plant and equipment, primarily buildings, water and sewage service
and other assets acquired, is provided using the straight-line method based on the estimated useful lives of the underlying assets.

While we believe that our estimates of current remaining estimated lives is reasonable, the use of different assumptions and estimates and changes
in future circumstances, could affect the remaining useful lives of our asset, which could have a significant impact on our results of operations in
the future.  

Loss Contingencies

We are a party to a number of legal proceedings involving significant monetary claims. These legal proceedings include, among others, tax, labor,
civil, environmental, condemnation and other proceedings. For a more detailed discussion of these legal proceedings, see note 15 to our financial
statements.  We  accrue  for  probable  losses  resulting  from  these  claims  and  proceedings  when  we  determine  that  the  likelihood  that  a  loss  has
occurred is probable and the amount of such loss can be reasonably estimated. As such, we are required to make judgments regarding future events
for  which  we  often  seek  the  advice  of  legal  counsel.  As  a  result  of  the  significant  judgment  required  in  assessing  and  estimating  these  loss
contingencies, actual losses realized in future periods could differ significantly from our estimates and could exceed the amounts which we have
provisioned.  

No  differences  have  been  identified  between  accounting  policies  on  loss  contingencies  adopted  under  the  Brazilian  Corporate  Law  Method  and
U.S. GAAP.  

Pension Plans 

Plan  G1.  We  sponsor  a  funded  defined-benefit  pension  and  benefits  fund,  or  Plan  G1,  which  is  operated  and  administered  by  SABESPREV—
Fundação SABESP de Seguridade Social.

Under the Brazilian Corporate Law Method, prior to January 1, 2002, we recorded pension expense on an accrual basis based on our contributions
to  the  plan.  Effective  January  1,  2002,  in  accordance  with  the  issuance  of  a  new  accounting  standard,  we  began  accounting  for  our  actuarial
obligation under Plan G1. As permitted under this standard, we amortized the transition liability related to the actuarial value of our obligation at
the date of adoption of the new standard over a period of five years, which was recorded in our statements of operations as an extraordinary item,
net  of  the  related  tax  impacts.  For  2005,  pension  costs  charged  to  income  totaled  R$65.7  million,  of  which  R$53.2  million  (net  of  tax  effects,
totaling  R$35.1million)  was  presented  as  “extraordinary  item  net  of  income  tax  and  social  contribution.”  The  remaining  R$12.5  million  was 
charged to cost of services rendered, general and administrative expenses and selling expenses. For 2006, pension costs charged to income totaled
R$56.0 million, of which R$53.2 million (net of tax effects totaling R$35.1 million) was presented as “extraordinary item net of income tax and 
social  contribution.”  The  remaining  R$2.8  million  was  charged  to  cost  of  services  rendered,  general  and  administrative  expenses  and  selling
expenses. For 2007, pension costs charged to income totaled R$55.9 million, and this amount was charged to cost of services rendered, general and
administrative  expenses  and  selling  expenses.  At  December  31,  2007,  our  obligation  under  Plan  G1  was  R$365.2  million.  See  note  13  to  our
financial statements. 

Under U.S. GAAP, we had already adopted the provisions of SFAS No. 87, “Employers’ Accounting for Pensions” prior to 2002, which requires 
that we recognize an actuarial liability for pension benefits under Plan G1. While the actuarial assumptions used for U.S. GAAP are the same as
those used in determining the actuarial liability under the Brazilian Corporate Law Method, pension costs and obligations under U.S. GAAP and
the  Brazilian  Corporate  Law  Method are not the  same,  mainly  due  to differences  related  to the  first  year  of  application, the  amortization  of  the
initial  transition  obligation, amortization  periods  for other actuarial gains  and losses, and  actuarial  calculation methods, among  others. After  the
issuance of SFAS 158 “Employers’ Accounting for Defined Benefit Pension and Other Postretirement Plans an amendment of FASB Statements
No. 87, 88, 106, and 132(R),” in September 2006, an employer is required to recognize the overfunded or underfunded status of a defined benefit
postretirement plan (other than a multi-employer plan) as an asset or liability in its statement of financial position and to recognize changes in that 
funded status in the year in which the changes occur through comprehensive income of a business entity or changes in unrestricted net assets of a
not-for-profit organization. This statement also requires an employer to measure the funded status of a plan as of the date of its year-end statement 
of financial position, with limited exceptions. See note 26 to our financial statements.  

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We are currently evaluating the possible introduction of a defined contribution plan for new employees and providing existing employees an option
to switch to this new plan from Plan G1. 

Plan G0. Pursuant to a law enacted by the State, some of its employees who provided service to us prior to May 1974 and retired as employees of
ours acquired a legal right to receive supplemental pension payments (which rights are referred to as “Plan G0”). These amounts are paid by us on 
behalf of the State and are claimed as reimbursement from the State. As such, no pension expense related to Plan G0 is recorded  and no future
obligations are recorded under the Brazilian Corporate Law Method.  

Consistent  with  the  guidance  in  SEC  Staff  Accounting  Bulletin  Topic  5-T  (“SAB  No.  5-T”),  under  U.S.  GAAP,  we  recognize  the  costs  and
obligations associated with Plan G0 supplemental pension benefits on a “push-down basis,” as we are the recipients of the benefits of the employee 
service for which the supplemental pension benefits are made. The Plan G0 benefit obligation and expenses are accounted for in accordance with
SFAS No. 87. Eventual amounts received as reimbursement from the State, if any, are treated as additional paid-in-capital. As such, Plan G0 is 
considered unfunded for purposes of U.S. GAAP. See notes 26 and 27 to our financial statements.  

Assumptions.  Accounting  for  these  pension  benefits  under  the  Brazilian  Corporate  Law  Method  and  U.S.  GAAP,  requires  an  extensive  use  of
assumptions, including those related to the inflation adjusted discount rate, expected return on plan assets, the expected rate of future compensation
increases  received  by  our  employees,  mortality  rates,  and  turnover.  We  review  each  assumption  annually,  with  the  assistance  of  our  actuarial
consultant  (Assistants)  who  provides  guidance  in  establishing  the  assumptions.  The  assumptions  are  selected  to  represent  the  weighted  average
expected  experience  over  time  and  may  differ  in  any  one  year  from  actual  experience  due  to  changes  in  the  capital  markets  and  the  overall
economy,  regulatory  events,  judicial  rulings,  and  higher  or  lower  actual  rates  of  withdrawal,  turnover  or  mortality  among  our  participating
employees. While we believe that our assumptions used are appropriate, differences in actual experience or changes in assumptions could affect the
amount of pension expense that we recognize.  

The present value of our pension obligations was based on a discount rate of 12.3% for 2005 and 2006, and 10.8% for 2007 Our pension obligation
and expense increases as the discount rate is reduced.  

Our expected return on assets for Plan G1 is determined by evaluating the asset class return expectations with our advisors, as well as actual, long-
term historical results of our asset returns. For 2007, we used an expected rate of return on assets assumption of 10.8% . The expected return on
assets assumption is based on a targeted allocation of investments in accordance with the investment strategies of the plans. We believe that this
targeted allocation will, on average, approximate actual long-term asset allocation.  

Certain Transactions with Controlling Shareholder 

Reimbursement  Due  from  the  State.  Reimbursement  due  from  the  State  for  pensions  paid  represent  supplementary  pensions  (Plan  G0)  that  we
pay, on behalf of the State, to former employees of the State-owned companies which merged to form a company. These amounts are reimbursed to
us by the State, as primary obligor. However, these amounts have been outstanding for a long period. We account for these as long-term assets, and
we do not reserve against such accounts receivable as we expect to recover these amounts and loss is not considered probable. On March 26, 2008,
the State of São Paulo, through the Treasury Secretariat and the Sanitation and Energy Secretariat, and we entered into a commitment agreement
for the settlement of outstanding debts related to the reimbursement of pension benefits. Even though the State acknowledges its debts related to the
pension benefits, the State disagrees with the criteria adopted by us to grant and pay the benefits, based on the legal opinions issued by the State
Attorney  General,  which  restricts  State  actions  and  prevents  the  voluntary  reimbursement  of  all  amounts  paid  by  us.  From  our  standpoint,  the
criteria adopted in the past to grant and pay pension benefits were correct, as they were based on specific State authorizations or then effective legal
opinions. See note 6 to our financial statements.  

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Accounts Receivable from the State for Water and Sewage Service Provided. Certain of these accounts receivable have been overdue for a long 
period and we do not reserve against such accounts receivable as we fully expect to recover these amounts and loss is not considered probable. We
have entered into agreements with the state with respect to these accounts receivable. For further information on these agreements, see note 6 to our
financial statements.  

Use  of  Certain  Assets  Owned  by  the  State.  We  currently  use  certain  reservoirs  in  the  Alto  Tietê  System  and  the  Billings  and  Guarapiranga
reservoirs which are owned indirectly by the State. We currently do not pay any fees with respect to the use of these reservoirs. However, we are
responsible  for  maintaining  and  meeting  the  operating  costs  of  these  reservoirs.  If  these  facilities  had  not  been  made  available  for  our  use,  we
would have had to obtain water from more distant sources, which would be more costly. The State does not incur operating costs on our behalf.  

The  arrangement  not  to  pay  any  fees to  the  State  for  the  use  of  certain  reservoirs  of the  Alto  Tietê  System is addressed by  a  number  of  formal
agreements  first  entered  into  on  March  31,  1992  and  on  April  24,  1997  and  later  amended  on  March  16,  2000  and  on  November  21,  2001,
respectively. As part of the arrangement, we agreed to fund 100.0% of the estimated costs of the 1992 agreement (equal to R$27.8 million) and
75.0% of the 1997 agreement (equal to R$63.4 million) which was already disbursed, and the Government of the State of São Paulo, through the
State  Department  of  Water  and  Energy,  agreed  to  fund  approximately  25.0%  of  the  estimated  costs  of  the  1997  agreement  (equal  to  R$21.1
million), to construct ducts, tunnels and other facilities to interconnect the Tietê River with the Biritiba and Jundiaí reservoirs and other bodies of
water in exchange for our use of the reservoirs during a 30-year period. The amendments to the 1997 agreement increased our obligations under
such agreement by R$5.9 million.  

We have the right to draw water and release emissions in the reservoirs in the Alto Tietê system during a 30-year period which began in 1997. We 
capitalize  our  expenditures  on  the  facilities  we  construct.  The  project  subject  to  the  1992  agreement  was  concluded  and  the  assets  entered
operations in 1994. The project subject to the 1997 contract became operational in 2002 and is being depreciated on a straight-line basis through 
2027.  

The arrangement for use of the Billings and Guarapiranga reservoirs is provided for through a grant issued by the Department of Water and Energy.
We have a right to use these reservoirs so long as we remain responsible for maintaining and meeting their operating costs.  

Results of Operations 

The following table sets forth, for the periods indicated, certain items in our statement of operations, each expressed as a percentage of net revenue
from sales and services:  

Net revenue from sales and services 
Cost of sales and services 
Gross profit 
Selling expenses 
Administrative expenses 
Financial expenses, net 
Income from operations 
Non-operating expenses, net 
Income before taxes on income 
Income tax and social contribution 
Extraordinary item, net of income tax and social contribution 
Net income 

66 

2005

Year ended December 31,
2006

2007

100.0 
(48.0)
52.0 
(10.9)
(7.0)
(9.0)
25.1 
(0.5)
24.6 
(6.4)
(0.7)
17.5 

100.0  
(47.3) 
52.7  
(13.0) 
(7.1)
(10.2) 
22.4  
(0.9) 
21.5  
(6.8)
(0.6) 
14.1  

100.0 
(45.1)
54.9 
(10.7)
(9.4)
(9.4)
25.4 
(0.6)
24.8 
(7.2)
-
17.6 

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Year Ended December 31, 2007 Compared to Year Ended December 31, 2006 

Net Revenue from Sales and Services 

Net revenue from sales and services increased by R$443.5 million, or 8.0%, to R$5,970.8 million in 2007, from R$5,527.3 million in 2006.  

Net revenue from sales and services relating to water services in 2007 increased by R$232.0 million, or 7.3%, to R$3,409.3 million in 2007, from
R$3,177.3 million in 2006. This increase was principally due to:  

  a 2.2% increase in volume of water invoiced in 2007; and  
  a tariff readjustment in 2007 of 4.1%.  

Net revenue from sales and services relating to sewage services in 2007 increased by R$211.4 million, or 9.0%, to R$2,561.5 million in 2007, from
R$2,350.1 million in 2006. Volumes of sewage increased by 4.3%, while tariffs increased by 4.1% .  

Cost of Sales and Services 

The  cost  of  sales  and  services  increased  by  R$78.9  million,  or  3.0%,  to  R$2,695.7  million  in  2007,  from  R$2,616.8  million  in  2006.  As  a
percentage of net revenue from sales and services, cost of sales and services decreased to 45.1% in 2007 from 47.3% in 2006.  

The increase in overall costs was principally due to the following factors:  

  an increase of R$57.7 million, or 17.7%, in services expenses mainly due to: (1) an increase of R$20.3 million in network maintenance,
residential  connections  of  sewage  and  water  and  streets  pavement  related  to  the  losses  reduction  program;  (2)  an  increase  of  R$17.9 
million in maintenance of sewage and water systems; (3) an increase of R$3.5 million in security expenses related to the improvement of
the electronic systems monitored by distances; and (4) an increase of R$2.1 million related to the improvements and maintenance of our
Call Centers;  

  an increase of R$25.6 million, or 5.7%, in energy costs, principally as a consequence of (1) an increase in average energy tariffs of 5.7% 

in the regular energy supply market; and (2) a decrease of 0.8% related to the program of efficient use of energy;  

  an increase of R$7.9 million, or 7.5%, in materials expenses, as a consequence of the presence of algae in the reservoir of Cantareira that 

demanded an increase in copper sulphate consumption;  

  an increase of R$3.9 million, or 3.4%, in materials, principally due to (1) a R$4.8 million increase in materials used in the distribution and 
collections network maintenance; (2) a R$1.2 million increase in maintenance of electric and mechanical systems of elevation stations and 
sewage  treatment;  (3)  expenses  in  the  amount  of  R$1.1  million  related  to  our  obtainment  of  the  International  Occupational  Health  and 
Safety Management System Specification Certification, the OHSAS 18001 Certification. 
These  increases  were  partially  offset  by  a  decrease  of  R$3.8  million,  in  fuel  expenses,  related  to  a  decrease  of  9.4%  in  the  price  of
Ethanol;  

  an increase of R$3.3 million, or 0.3%, in payroll expenses and related charges, primarily due to (1) annual salary adjustments of 3.37% 
that came into effect in May 2007; (2) an increase of R$38.3 in accrual for pension obligations in accordance with the CVM, under CVM 
Deliberation No. 371/2000, that were offset by a non recurrent provision from 2006 related to bonuses in the amount of R$21.2 million 
and an incentivized resignation program in the amount of R$9.5 million; and  

  a decrease of R$18.2 million, or 2.9%, in depreciation and amortization, principally due to the transfer of assets recorded as construction 

in progress to operating permanent assets, which resulted in higher depreciation costs during 2006.  

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Gross Profit 

As  a  result  of  the  factors  discussed  above,  gross  profit  in  2007  increased  by  R$364.5  million,  or  12.5%,  to  R$3,275.1  million  in  2007,  from
R$2,910.6 million in 2006. As a percentage of net revenue from sales and services, gross profit increased to 54.9% in 2007 from 52.7% in 2006.  

Selling Expenses

Selling expenses in 2007 decreased by R$79.6 million, or 11.1%, to R$639.6 million in 2007, from R$719.2 million in 2006. As a percentage of
net revenue from sales and services, selling expenses decreased to 10.7% in 2007, from 13.0% in 2006.  

The decrease in selling expenses was primarily due to the following factors:  

  a decrease of R$88.5 million, or 21.5%, in bad debt expenses, net of recoveries, to R$323.4 million in 2007 from R$411.9 million in 2006, 
principally due to the adjustment of R$93.8 million in 2006, which was a result of an analysis and reconciliation procedure related to the 
accounting balance of our accounts receivable; and  

  an increase of R$8.1 million, or 10.1%, in services expenses, principally due to (1) the expansion of external technical attendance service 

(TACE), and (2) an improvement of the electronic systems monitored by distances.  

Administrative Expenses 

Administrative  expenses  for  2007  increased  by  R$171.8  million,  or  44.3%,  to  R$559.2  million  in  2007,  from  R$387.4  million  in  2006.  As  a
percentage of net revenue from sales and services, administrative expenses increased to 9.4% in 2007, from 7.1% in 2006.  

The increase in administrative expenses primarily reflected:  

  an increase of R$163.2 million, in provisions for judicial proceedings, resulting from costumers claims as to which losses are probable. 
This increase is a result of an internal assessment that considered the history of judicial proceedings to calculate the best estimate of our
actual potential liabilities; and  

  an increase of R$10.2 million, or 30.5%, in fiscal expenses principally due to the end of our IPTU (urban buildings and territorial tax) 

exemption in the municipality of São Paulo.  

Financial Expenses, Net 

Financial expenses, net consist primarily of interest on our indebtedness, foreign exchange losses (or gains) in respect of our indebtedness, offset
partially  by  interest  income  on  cash  and  time  deposits  and  inflation-based  indexation  accruals,  mainly  relating  to  agreements  entered  into  with
some customers to settle overdue accounts receivable.  

Financial expenses, net in 2007 decreased by R$2.3 million, or 0.4%, to R$561.0 million in 2007, from R$563.3 million in 2006. As a percentage
of net revenue from sales and services, financial expenses, net decreased to 9.4% in 2007, from 10.2% in 2006. 

Financial expenses increased R$96.6 million, or 12.3% . This increase in financial expenses was primarily due to:  

  an increase of R$185.7 million related to financial expenses on judicial proceedings mentioned in administrative expenses.  

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The increase in financial expenses was partially offset by:  

  a  decrease  of  R$70.5  million  related  to  the  prepayment  of  the  1st and  2nd  series  of  our  5th  series  of  our  debentures  in  April  2006  and 

September 2007, respectively; and  

  a decrease of R$18.3 million related to prepayment of our 2008 Eurobonds in November 2006. The refinancing of the 2008 Eurobonds

with the 2016 Eurobonds, has reduced the nominal interest rate from 12.0%p.a. to 7.5%p.a..  

Financial income increased by R$6.5 million, or 5.1%, to R$132.4 million in 2007, from R$125.9 million in 2006, which was related to interest
income from renegotiated accounts receivable.  

The exchange variation gain, increased R$92.4 million, or 96.7%, to R$188.0 million in 2007, from R$95.6 million in 2006, which was related to
the real appreciation against the U.S. dollar of 20.7% in 2007 compared to 9.5% in 2006.  

As of December 31, 2007, 78.1% of our debt was denominated in reais and 21.9% was denominated in foreign currency, principally U.S. dollars.  

Income from Operations 

As a result of the factors discussed above, income from operations in 2007 increased by R$274.7 million, or 22.1%, to R$1,515.4 million in 2007,
from R$1,240.7 million in 2006.  

Non-Operating expenses, net 

Non-operating expenses, net 2007 decreased by R$15.7 million, or 30.9%, to R$35.2 million, from R$50.9 million in 2006. 

The decrease in non-operating expenses, net was primarily due to:  

  an increase of R$ 22.6 million, or 38.4%, in losses related to the disposal of obsolete assets; and  
  a decrease of R$34.7 million related to the recognition of amounts that are no longer required to be paid back to customers (prescribed).  

Income Tax and Social Contribution Tax 

Income tax and social contribution tax (including deferred taxes) in 2007 increased by R$55.8 million, or 14.8%, to R$431.6 million from R$375.8
million in 2006. This was primarily due to the increase in taxable income, which was R$1,642.6 in 2007, compared to R$1,283.5 million in 2006.
This increase in profits was partially offset by tax benefits resulting from the declaration of interest on shareholders’ equity. This benefit amounted 
to  R$102.3  million  in  2007,  compared  to  R$92.1  million  in  2006,  over  interest  on  shareholders’  equity  in  the  amounts  of  R$300.7  million  and
R$270.8 million, respectively.  

Extraordinary Item 

In  accordance  with  the  requirements  of  the  CVM,  under  CVM  Deliberation  No.  371/2000,  we  have elected  to  recognize  the  actuarial transition
liability of R$266.1 million calculated as of December 31, 2001 with respect to our defined-benefit pension plan (Plan G1) on a straight-line basis 
against earnings over the five-year period ending December 31, 2006.  

As permitted, the expense was recorded as an extraordinary item of R$35.1 million, net of income tax, of R$18.1 million, for each of the five years.
The last appropriation related to the actuarial liability mentioned above was made in 2006.  

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Net Income 

As a result of the factors discussed above, net income increased by 34.6%, to R$1,048.7 million in 2007, from R$778.9 million in 2006. Excluding
the  effects  of  the  adjustment  of  R$93.8  million  in  2006,  which  was  a  result  of  an  analysis  and  conciliation  procedure  related  to  the  accounting
balance of our accounts receivable, our net income would have increased by R$176.0 million. The bulk of this increase derived from profits from
operations,  which  recorded  a  significant  growth  of  22.1%,  and  the  20.7%  appreciation  of  the  real, compared  to  U.S.  Dollar,  contributed  to  the 
balance of the increase.

Table of Contents

Year Ended December 31, 2006 Compared to Year Ended December 31, 2005 

Net Revenue from Sales and Services 

Net revenue from sales and services increased by R$573.9 million, or 11.6%, to R$5,527.3 million in 2006, from R$4,953.4 million in 2005.  

Net revenue from sales and services relating to water services in 2006 increased by R$320.8 million, or 11.2%, to R$3,177.3 million in 2006, from
R$2,856.5 million in 2005. This increase was principally due to:  

  a 2.7% increase in volume of water invoiced in 2006; and  
  the effect of the tariff readjustment in 2005 of 9.0%, with a 6.6% impact in 2006, and the tariff readjustment in 2006 of 6.7%, with a 1.7% 

impact in 2006, which altogether had an impact of 8.3%.  

Net  revenue  from  sales  and  services  relating  to  sewage  services  increased  by  R$253.2  million,  or  12.1%,  to  R$2,350.1  million  in  2006,  from
R$2,096.9 million in 2005. Volumes of sewage increased by 4.0%, while tariffs increased by 9.0% .  

Cost of Sales and Services 

The  cost  of  sales  and  services  increased  by  R$240.4  million,  or  10.1%,  to  R$2,616.8  million  in  2006,  from  R$2,376.4  million  in  2005.  As  a
percentage of net revenue from sales and services, cost of sales and services decreased to 47.3% in 2006 from 48.0% in 2005.  

The increase in overall costs was principally due to the following factors:  

  an increase of R$115.5 million, or 13.6%, in payroll expenses and related charges, primarily due to annual salary adjustments of 4.63% 
that came into effect in May 2006. In addition, the increase was due to the non recurrent provision of a performance-related bonus, a profit 
sharing plan taking into account in 2006 and the charges related to payment of compensation in connection with our incentive resignation 
program,  totaling  an  aggregate  amount  of  R$60.2  million.  This  increase  was  partially  offset  by  a  2.7%  decrease  in  the  number  of  our
employees, or 470 employees, of which 398 employees resigned under the incentive resignation program. While the number of employees
covered by this line item decreased to 16,978 in 2006 from 17,448 in 2005, productivity increased on a company-wide basis based on our
operating index of the number of water and sewage connections per employee, which indicated 684 connections per employee in 2006 and 
651 connections per employee in 2005;  

  an increase of R$49.4 million, or 8.6%, in depreciation and amortization, principally due to the transfer of assets recorded in construction 
in  progress  to  operating  permanent  assets,  which  resulted  in  higher  depreciation  costs  during  2006.  We  expect  depreciation  costs  to 
increase in the next periods in the same proportion of the increase in our assets in operation.  

  an increase of R$29.0 million, or 9.7%, in outsourced services, principally due to a R$16.2 million increase in preventive and corrective 
maintenance  of  water  and  sewage  treatment  stations  and  in  fees  related  to  sludge  disposal  services,  a  R$6.8  million  in  our  water  loss 
control program and a R$6.0 million in costs related to hiring security companies;  

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  an increase of R$25.7 million, or 6.1%, in energy costs, principally as a consequence of (1) an increase in average energy tariffs of 6.7% 
in the regular energy supply market; the supply of energy from this market represented 84% of energy costs incurred by us in 2006; (2) an 
increase in energy consumption due to an increase of 2.7% in water production and of 4.0% in collection and treatment of sewage; and (3) 
a  16.3%  increase  in  average  energy  tariffs  in  the  “free  market,”  which  represented  16%  of  energy  costs  incurred  by  us  in  2006.  The 
increase in energy costs was partially mitigated by (1) the migration of 43% of our energy requirements to the “free market,” where we 
can more efficiently negotiate for the supply of energy, which enabled us to save R$4.9 million in energy costs in 2006 and also provided 
us  with  a R$24.9  million  saving with the supply of  energy in connection  with  the  migration  of  43% of  our  energy requirements  to  the 
“free market” in 2006; (2) the renegotiation of energy supply agreements with municipalities of the São Paulo Metropolitan Region, which 
enabled us to save R$0.5 million; and (3) the ending of the additional charge for emergency energy capacity in 2005, which enabled us to 
save R$7.3 million;  

  an increase of R$12.5 million, or 11.9%, in materials, principally due to a R$5.6 million increase in materials used in the distribution and 
collections network maintenance, a R$4.6 million increase in fuel, expenses in the amount of R$0.9 million related to our obtainment of
the International Occupational Health and Safety Management System Specification Certification, the OHSAS 18001 Certification, which 
is a non-recurrent expense, and a R$1.4 million increase in several other types of materials; and  

  an increase of R$5.6 million, or 5.7%, in treatment materials, due to a higher volume of treated water and collected and treated sewage as 
a  result  of  the  increase  in  consumption  and  the  increase  in  the  price  of  certain  materials.  The  average  increase  in  prices  of  treatment 
materials was 8.3%, but more efficient operating procedures resulted in total costs not increasing to the same extent.  

Gross Profit 

As  a  result  of  the  factors  discussed  above,  gross  profit  in  2006  increased  by  R$333.5  million,  or  12.9%,  to  R$2,910.5  million  in  2006,  from
R$2,577.0 million in 2005. As a percentage of net revenue from sales and services, gross profit increased to 52.7% in 2006 from 52.0% in 2005.  

Selling Expenses

Selling expenses in 2006 increased by R$181.4 million, or 33.7%, to R$719.2 million in 2006, from R$537.8 million in 2005. As a percentage of
net revenue from sales and services, selling expenses increased to 13.0% in 2006, from 10.9% in 2005.  

The increase in selling expenses was primarily due to the following factors:  

  an increase of R$156.6 million, or 61.3%, in bad debt expenses, net of recoveries, to R$411.9 million in 2006 from R$255.3 million in 
2005. Excluding the effects of the adjustment of R$93.8 million, which was a result of an analysis and conciliation procedure related to 
the  accounting  balance  of  our  accounts  receivable,  the  increase  was  mainly  due  to  the  increase  in  receivables  following  the  end  of  the 
water usage reduction bonus program in 2004. For further information on our accounts receivable, see note 5 to our financial statements.
The increase was also related to the tariff adjustment of 9.0% in August 2005; and  

  an increase of R$16.4 million, or 11.5%, in payroll expenses and related charges, primarily due to annual salary adjustments of 4.63% that 
came into effect in May 2006. In addition, the increase was due to the non recurrent provision of a performance-related bonus, a profit 
sharing plan taking into account in 2006 and the charges related to payment of compensation in connection with our incentive resignation 
program, totaling an aggregate amount of R$10.4 million.  

Administrative Expenses 

Administrative  expenses  for  2006  increased  by  R$37.8  million,  or  10.8%,  to  R$387.4  million  in  2006,  from  R$349.6  million  in  2005.  As  a
percentage of net revenue from sales and services, administrative expenses decreased to 7.0% in 2006, from 7.1% in 2005.  

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The increase in administrative expenses primarily reflected:  

  an increase of R$30.6 million, or 34.8%, in provisions for judicial proceedings, resulting from environmental claims as to which losses are 

probable;  

  an increase of R$20.1 million, or 17.9%, in payroll expenses and related charges, primarily due to annual salary adjustments of 4.63% that 
came  into  effect  in  May  2006.  In  addition,  the  increase  was  due  to  the  no  recurrent  provision  of  a  performance-related  bonus,  a  profit 
sharing plan taking into account in 2006 and the charges related to payment of compensation in connection with our incentive resignation 
program, totaling an aggregate amount of R$9.2 million; and  

  a decrease of R$14.8 million, or 15.7%, in outsourced services related to a decrease in fees paid to external advisers with respect to our

debt restructuring in the capital markets.  

Financial Expenses, Net 

Financial expenses, net consist primarily of interest on our indebtedness, foreign exchange losses (or gains) in respect of our indebtedness, offset
partially  by  interest  income  on  cash  and  time  deposits  and  inflation-based  indexation  accruals,  mainly  relating  to  agreements  entered  into  with
some customers to settle overdue accounts receivable.  

Financial  expenses,  net  in  2006  increased  by  R$116.3  million,  or  26.0%,  to  R$563.3  million  in  2006,  from  R$447.0  million  in  2005.  As  a
percentage  of  net  revenue  from  sales  and  services,  financial  expenses,  net  decreased  to  10.2%  in  2006,  from  9.0%  in  2005.  Financial  expenses
increased R$127.1 million, or 22.6% . 

The financial expenses decreased R$89.0 million, or 10.2% . This decrease in financial expenses was primarily due to:  

  a  decrease  of  R$79.2  million  for  monetary  adjustments  in  provisions  for  judicial  proceedings  related  to  interest  expenses,  due  to  the 

decrease in amounts provisioned with respect to court deposits; and  

  a  decrease  of  R$20.7  million  in  interest  and  other  charges  related  to  our  foreign  currency-denominated  debt,  principally  due  to  (1)  a 
R$42.5  million  decrease  in  payment  of  interest  on  Eurobonds  due  to  the  amortization  of  the  notes  due  2005  in  July  2005  and  the 
prepayment of part of  the 12.5%  notes due 2008  in  November 2006;  we  made this  prepayment  with the proceeds from  our offering of
7.5% notes due 2016 in the amount of US$140.0 million in November 2006; (2) a R$9.4 million in payment of interest on the principal
related to the loan agreement entered into with the Inter-American Development Bank and syndicated loans; (3) a R$31.3 million increase 
in  expenses  with  the  payment  of  the  premium  for  note  holders  who  tendered  their  12.5%  notes  due  2008,  which  is  a  non-recurrent 
expense.  

  a  decrease  of  R$10.8  million  in  interest  and  other  charges  related  to  our  real-denominated  debt,  principally  due  to  (1)  a  R$9.0  million 
decrease in payment of interest due to the prepayment of debentures with proceeds from our FIDC, which decreased interest rates from 
1.1% to 0.7%; (2) new issuances of debentures in the end of 2005 and the decrease in payment of interest was reflected in our results of
2006.  

The  decrease  in  financial  expenses  was  partially  offset  by  the  increase  in  the  IGPM  Index  in  2006  (from  1.2%  to  3.8%),  generating  a  R$  15.6
million monetary variation impact.  

Financial income increased by R$10.4 million, or 9.0%, to R$125.9 million in 2006, from R$115.5 million in 2005, which was related to interest
income from short-term investments.  

The exchange variation gain, decreased R$215.7 million, or 69.3%, to R$95.6 million in 2006, from R$311.3 million in 2005, which was related to
the real appreciation against the U.S. dollar of 9.5% in 2006 compared to 13.4% in 2005.  

As of December 31, 2006, 76.7% of our debt was denominated in reais and 23.3% was denominated in U.S. dollars.  

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Income from Operations 

As a result of the factors discussed above, income from operations in 2006 decreased by R$2.0 million, or 0.2%, to R$1,240.6 million in 2006,
from R$1,242.6 million in 2005.  

Non-Operating Expenses 

Non-operating expenses in 2006 increased by R$25.5 million, or 100.4%, to R$50.9 million, from R$25.4 million in 2005. Losses on the disposal
of obsolete assets were R$47.8 million in 2006, compared to R$19.1 million in 2005.  

Income Tax and Social Contribution Tax 

Income tax and social contribution tax (including deferred taxes) in 2006 increased by R$59.2 million, or 18.7%, to R$375.7 million from R$316.5
million in 2005. This was primarily due to the increase in taxable income, which was R$1,283.5 in 2006, compared to R$1,217.2 million in 2005.
This increase in profits was partially offset by tax benefits resulting from the declaration of interest on shareholders’ equity. This benefit amounted 
to  R$92.1  million  in  2006,  compared  to  R$118.4  million  in  2005,  over  interest  on  shareholders’  equity  in  the  amounts  of  R$270.8  million  and
R$348.2 million, respectively.  

Extraordinary Item 

In  accordance  with  the  requirements  of  the  CVM,  under  CVM  Deliberation  No.  371/2000,  we  have elected  to  recognize  the  actuarial transition
liability of R$266.1 million calculated as of December 31, 2001 with respect to our defined-benefit pension plan (Plan G1) on a straight-line basis 
against earnings over the five-year period ending December 31, 2006.  

As permitted, the expense is recorded as an extraordinary item of R$35.1 million, net of income tax, of R$18.1 million, for both 2006 and 2005.  

Net Income 

As a result of the factors discussed above, net income decreased by 10.0%, to R$778.9 million in 2006, from R$865.6 million in 2005. Excluding
the effects of the adjustment of R$93.8 million, which was a result of an analysis and conciliation procedure related to the accounting balance of
our accounts receivable, our net income would have increased by R$7.0 million. The bulk of this increase derived from profits from operations,
which recorded a significant growth of 40.3%, and the 8.7% appreciation of the real contributed to the balance of the increase.

U.S. GAAP RECONCILIATION 

Our net income in accordance with the Brazilian Corporate Law Method was R$865.6 million, R$778.9 million and R$1,048.7 million in 2005,
2006 and 2007, respectively. Under U.S. GAAP, we would have reported net income of R$791.2 million, R$622.5 million and R$925.4million in
2005, 2006 and 2007. 

Our  shareholders’  equity  in  accordance  with  the  Brazilian  Corporate  Law  Method  totaled  R$8,482.5  million,  R$9,018.5  million  and  R$9,784.0
million  as  of  December  31,  2005,  2006  and  2007,  respectively.  Under  U.S.  GAAP,  we  would  have  reported  shareholders’  equity  of  R$6,821.4 
million, R$7,298.2 million and R$7,891.6 million as of December 31, 2005, 2006 and 2007, respectively. 

The principal differences between the Brazilian Corporate Law Method and U.S. GAAP that affect our net income in 2005, 2006 and 2007, as well
as shareholders’ equity as of December 31, 2005, 2006 and 2007, relate to the treatment of the following items:  

  additional inflation restatements and related depreciation which would be mandated by U.S. GAAP (but which are not permitted under the 
Brazilian Corporate Law Method) for 1996 and 1997 in recognition of Brazil’s status as a highly inflationary country in those years;  

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  revaluations  of  property,  plant  and  equipment  recorded  in 1990 and  1991  under the  Brazilian Corporate  Law  Method,  which  would  be
reversed and partially replaced by supplemental inflation restatements based upon a general price index (IGP-M) for periods prior to 1990 
under U.S. GAAP;  

  pension plan (Plan G0) payments and other employee benefits for former employees of our predecessor companies which are obligations 
of  the  State  and  which  are  not  treated  as  our  expenses  under  the  Brazilian  Corporate  Law  Method,  but  which  would  be  required  to  be 
treated as our expense on an actuarial basis under U.S. GAAP;  

  pension plan (Plan G1) expenses which, through December 31, 2001, were recognized on an accrual basis only to the extent of required 
contributions for the relevant year or financial period under the Brazilian Corporate Law Method, but which would be required to be fully 
recorded on an actuarial basis under U.S. GAAP. Since January 1, 2002 under the Brazilian Corporate Law Method, recognition on an
actuarial basis is required. There are some differences as compared with U.S. 
GAAP,  basically  regarding  the  calculation  method,  amortization  period  and  recognition  rules,  resulting  in  different  pension  cost
obligation; and  

  additional  accounting  items,  including,  among  others,  capitalized  interest,  expensing  of  deferred  charges,  deferral  of  certain  debt  issue 

costs, and related deferred taxes.  

See  note  26  to  our  financial  statements  for  a  description  of  these  differences  as  they  relate  to  us  and  a  reconciliation  of  net  income  and  total
shareholders’ equity from the Brazilian Corporate Law Method to U.S. GAAP.  

5.B. Liquidity and Capital Resources 

Capital Sources 

In  order  to  satisfy  our  liquidity  and  capital  requirements,  we  have  primarily  relied  on  cash  provided  by  operating  activities,  borrowings  from
Brazilian Federal and State governmental financial institutions, and financing from multilateral organizations and from domestic and international
capital markets. As of December 31, 2007, we had R$465.0 million of cash and cash equivalents. Outstanding short-term debt was R$742.1 million 
as  of  December  31,  2007,  of  which  R$251.7  million  was  denominated  in  foreign  currency.  Long-term  debt  was  R$4,943.1  million,  of  which 
R$990.6 million consisted of foreign currency-denominated obligations. We believe that we have sufficient sources of liquidity and capital to meet
our liquidity and capital requirements for the next few years, in light of our current financial position and our expected cash generated by operating
activities.  

Cash Provided  by Operating  Activities. Cash provided  by operating activities  is,  and  we  anticipate that it  will continue to be, the  single largest 
source of our liquidity and capital resources in future years and financial periods. Our cash generated by operating activities was R$1,737.6 million,
R$2,020.8 million and R$2,215.6 million in 2005, 2006 and 2007.  

We  have  overdue  accounts  receivable  from  the  State  and  from  the  municipalities  to  which  we  provide  water  on  a  wholesale  basis.  For  more
information, see “Item 7.B. Major Shareholders and Related Party Transactions—Related Party Transactions.”

Debt Financing. As of December 31, 2007, we had R$4,943.1 million in long-term debt outstanding (excluding the current portion of long-term 
debt), of which R$990.6 million consisted of foreign currency-denominated long-term debt. We had outstanding short-term debt of approximately 
R$742.1 million as of December 31, 2007, representing the current portion of our long-term debt. 

As of December 31, 2007, approximately R$251.7 million of this short-term debt was denominated in foreign currencies. Substantially all of our
foreign  currency-denominated  debt  of  R$1,242.3  million  as  of  December  31,  2007  was  denominated  in  U.S.  dollars  or  in  baskets  of  foreign
currencies. 

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This debt consisted principally of:  

     (1)  R$765.4  million  (US$432.1  million)  in  U.S.  dollar  denominated  loans  from  the  Inter-American  Development  Bank.  Under  these  loans, 
payments of principal are made in semi-annual installments with final maturity in July 2025. The principal amount is adjusted semi-annually for
the variation in a basket of foreign currencies and accrues interest at a rate varying from 3.00% to 5.61% . We have pledged part of our receivables
from our sales and services up to the amount due as collateral. For further information on the terms of these loan agreements, see “Item 4.A. History 
and Development of the Company—Capital Expenditure Program—Tietê Project.”

     (2) R$173.7  million  (US$98.1 million) in aggregate principal amount  of our 12%  notes due  2008 sold in the  international capital  markets  in
June 2003 and R$248.0 million (US$140.0 million) in the aggregate principal amount of our 7.5% notes due 2016 sold to the international capital
markets in November 2006.  

Our borrowings from multilateral institutions, such as the World Bank and the Inter-American Development Bank, have in the past been, and in the 
future are likely to be, guaranteed by the Government of the State or the Federal Government. We do not pay fees for these guarantees. Under some
of the loan agreements with the Inter-American Development Bank, we have granted a guarantee (contra garantia) to the Federal Government. 

Our outstanding domestic debt was approximately R$4,442.9 million as of December 31, 2007 and consisted primarily of real-denominated loans 
from Federal and State-owned banks, in particular, Banco do Brasil S.A., Caixa Econômica Federal and the Brazilian National Bank for Economic
and Social Development (Banco Nacional de Desenvolvimento Econômico e Social), or BNDES, as well as debentures issued in September 2004 
and March and June 2005. 

The following summarizes our principal borrowings from Federal and State-owned banks:  

     (1) In March 1994, we entered into a loan agreement with Banco do Brasil S.A.. Amortizations of principal amount are made in 240 successive
monthly installments, with final maturity in 2014. The principal amount accrues interest at the daily government interest rate plus 8.50% per annum
and monetary adjustment. 

     (2) We have entered into several line of credit agreements with Caixa Econômica Federal, pursuant to which amortizations of principal are paid
in 120 or 180 months in monthly installments after 30 days following a grace period, which varies from 14 to 36 months from the date of the first
draw-down. The final maturity is 2022. The principal amount accrues interest at a rate varying from 5.00% to 9.50% .  

     (3) In August 2002, we entered into a line of credit agreement with BNDES. The final maturity date will be in February 2013. The principal
amount accrues interest at the long-term rate fixed by the Federal Government (Taxa de Juros de Longo Prazo), or TJLP, limited to 6.00%, plus 
3.00% per annum. If the TJLP exceeds 6.00%, such excess will be added to the principal amount payable at maturity.  

     In addition, we entered into a credit agreement on August 6, 2004 with the JBIC for the financing of the Environmental Recovery Program for
the Santos Metropolitan Region, which was guaranteed by the Federal Government for an aggregate principal amount of ¥21,320 million (R$337.7 
million).  The  disbursements  began  in  January  2006.  As  of  December  31,  2007,  the  total  amount  disbursed  was  R$42.0  million.  Under  this
financing  agreement,  amortizations  are  made  in  semi-annual  installments  in  August  and  February,  with  final  maturity  2029.  This  obligation  is
guaranteed  by  the  Federal  Government.  For  further  information  on  the  terms  and  guarantees  of  this  financing  agreement,  see  “Item  7.B.  Major
Shareholders  and  Related  Party Transactions—Related Party Transactions—Government Guarantees  of  Financing”  and  “Item 4.A. History  and
Development of the Company—Capital Expenditure Program—Capital Expenditure Program—Environmental Recovery Program for the Baixada
Santista Metropolitan Region – “Programa Onda Limpa”.”

In  addition,  we  are  currently  negotiating  with  BNDES  and  Caixa  Econômica  Federal  for  additional  loans  to  finance  portions  of  our  capital
expenditure program.  

75 

Table of Contents

With respect to the debentures issued on September 17, 2004, we filed a securities shelf program with the CVM through which we were able to
offer non-convertible debentures in the aggregate amount of R$1.5 billion. We issued the total amount available under this shelf program by July
1995. As part of the program:  

     (1)  We  issued  R$600.0  million  in  aggregate  principal  amount  of  debentures  in  September  2004  (our  6th issuance),  offered  in  three  separate 
series. The debentures of the first, second and third series will mature within three, five and six years after issuance, respectively. The debentures of
the first series in the amount of R$231.8 million bear interest at the interbank deposit rate (CDI) plus 1.75% per year, and the debentures of the
second series in the amount of R$188.3 million, and of the third series, in the amount of R$179.9 million, bear interest at rates of IGP-M index plus 
11.0% per year. The first series was totally paid in September, 2007.  

     (2) We also issued R$300.0 million in aggregate principal amount of debentures in March 2005 (our 7th issuance), offered in two series. The 
debentures of the first and second series will mature within four and five years, respectively, after issuance. The debentures of the first series, in the
total amount of R$200.0 million, bear interest at the interbank deposit rate (CDI) plus 1.5% per year, and the debentures of the second series, in the
total amount of R$100.0 million, bear interest at the rate of IGP-M index plus 10.8% per year.  

     (3)  We  also  issued  R$700.0  million  in  aggregate  principal  amount  of  debentures  in  June  2005  (our  8th issuance),  offered  in  two  series.  The 
debentures of the first and second series will mature within four and six years, respectively, after issuance. The debentures of the first series, in the
total amount of R$350.0 million, bear interest at the interbank deposit rate (CDI) plus 1.5% per year, and the debentures of the second series, in the
total amount of R$350.0 million, bear interest at the rate of IGP-M index plus 10.75% per year.  

All of our real-denominated debt is indexed to take into account the effects of inflation. Most of our real-denominated debt provides for inflation-
based  increases  in  their  respective  principal  amounts;  the  increases  are  determined  by  reference  to  the  daily  government  interest  rate  (Taxa
Referencial) plus an agreed margin.  

Furthermore,  in  March  2006,  a  securitization  fund  (Fundo  de  Direitos  Creditórios)  was  created  having  our  future  account  receivables  as  its 
underlying assets. On March 23, 2006, the fund issued senior and junior quotas to investors in Brazil with a value per unit of R$500,000.00. The
senior  quotas  will  be  amortized  in  54  monthly  installments.  The  fund  is  designed  to  have  a  return  to  investors  corresponding  to  100%  of  the
interbank deposit rate (CDI) variation, plus a fixed interest rate of 0.7% per annum. We subscribed and paid for and maintain in a deposit account
26 junior, or subordinated, quotas of this fund in the total amount of R$13.0 million.  

In  March  2006,  the  fund  advanced  to  us  revenues  derived  from  the  provision  of  water  and  sewage  services  in  the  amount  of  R$250.0  million,
representing a portion of the payments due under the underlying receivables during a five-year period. We retain the right to receive the balance of
additional payments accounting for the remaining portion of the receivables, provided that no event of default under the by-laws of the fund has 
occurred or is continuing. Once payments to the fund are made in full, which is expected to happen five years after the creation of the fund, we will
be entitled to all payments received under the underlying receivables. The fund manager is Caixa Econômica Federal. See note 10 to our financial
statements. 

76 

The following table sets forth information on our outstanding debt as of December 31, 2007. See note 10 to our financial statements:

Table of Contents

Facility 

Current

Long Term

As of December 31, 2007

Total Aggregate  

Principal
Amount
(in millions of reais)

Final
Maturity

Interest Rate(1)

238.2 

1,642.6 

1,880.8  

Real-denominated loans and financings: 
   Federal Government/Banco do Brasil 

   Debentures 6th Issue 
   Debentures 7th Issue 

   Debentures 8th Issue 

   Caixa Econômica Federal(2)

   FIDC – Sabesp 1 

   Brazilian Economic and Social 
         Development Bank (BNDES)
   Other 

   Accrued interest and charges 

Foreign currency denominated loans and 
   financings: 

   Long-term Notes: US$238,052 thousand
   Inter-American Development 

         Bank (IDB): US$432.099 thousand
   JBIC Yens 2,654,422 thousand
   Accrued interest and charges 

-
-

-

58.3 

55.5 

41.9 
3.1 

93.4 
490.4 

173.7 

64.8 
-
13.2 
251.7 

427.7 
312.4 

737.4 

490.9 

125.0 

165.7 
18.8 

32.0 
3,952.5 

248.0 

700.6 
42.0 
-
990.6 

2014  

2010  
2010  

2011  

2008/22  

2011  

2013  
2009/11  

UPR+8.5% 
11.00% and 

IGPM
CDI+1.5% and 
10.80% and 

IGPM
CDI+1.5% and 
10.75% and 

IGPM
UPR+5.00% to 
9.50% 
CDI+0.70% 
TJLP + 3% 
(limited 
to 6.00%)
12.00%, CDI and 
TJLP + 6.00% 

427.7  
312.4  

737.4  

549.2  

180.5  

207.6  
21.9  

125.4  
4,442.9  

421.7  

2008/16  

12.00% and 
7.50% 

2016/25  
2029  

3.00% and 
5.61% 
1.8% and 2.5% 

765.4  
42.0  
13.2  
1,242.3  

Total Debt 
__________________ 
(1) UPR stands for Standard Reference Unit (Unidade Padrão Referência) and is equal to the daily government interest rate (Taxa Referencial—
TR), which was 0.064% per month as of December 31, 2007; CDI stands for Interbank Deposit Rate (Certificado de Depósitos Interbancários),
which was 11.82% per annum as of December 31, 2007; IGP-M stands for Índice Geral de Preços a Mercado, which was 7.75% per annum as of
December 31, 2007; TJLP stands for Long-term Rate Fixed by the Federal Government on a quarterly basis (Taxa de Juros a Longo Prazo), which 
was 6.25% per annum as of December 31, 2007. 
(2)  Agreements  to  provide  up  to  approximately  R$404.9  million  in  financing  for  our  capital  expenditure  program  until  final  maturity.  We  have
pledged amounts in certain bank accounts as collateral for these loans.  

5,685.2  

4,943.1 

742.1 

Financial Covenants. We are subject to financial covenants under the agreements evidencing or governing our outstanding indebtedness. 

With respect to our indebtedness denominated in U.S. dollars or in baskets of foreign currencies, we are subject to financial covenants, including
but  not  limited  to  those  set  forth  in  the  loan  agreements  entered  into  with  the  Inter-American  Development  Bank.  Each  of  these  agreements 
contains, among other provisions, limitations on our ability to incur debt. The indenture relating to the 7.5% notes due 2016 is the most stringent of
these  debt  agreements.  This  indenture  prohibits,  subject  to  some  exceptions,  the  incurrence  of  additional  debt  in  the  event  that  (1)  the  ratio  of
Adjusted Total Debt to Adjusted EBITDA (as defined in the related indenture) is greater than 3.65x or (2) the Debt Service Coverage Ratio (as
defined in the indenture) is less than 2.35x. We do not believe that these covenants will impose constraints on our ability to finance our capital
expenditure program or, more generally, to develop our business and enhance our financial performance. 

In  addition,  with  respect  to  our  outstanding  domestic  debt,  we  entered  into  a  financing  agreement  with  the  Federal  Government  and  Banco  do
Brasil S.A. and also into several credit agreements with Caixa Econômica Federal that do not contain material financial covenants. Under our credit
agreement with BNDES we are required to keep (1) an EBITDA/net operational income ratio equal to or higher than 38%, (2) an asset/short-term 
liability (excluding the short term portion of long-term liabilities) ratio higher than 1.0, (3) total connections (water and sewage)/employees ratio
equal to or higher than 520, (4) EBITDA/debt service equal to or higher than 1.5 and (v) a shareholders’ equity/total debt ratio equal to or higher
than 0.8. 

With respect to our debentures, the 4th and the 5th issuances contain no material financial covenants and the 6th, 7th and 8th issuances require us to
maintain a current debt ratio higher than 1.0:1.0 and an EBITDA/expenditures ratio equal to or higher than 1.5:1.0.  

Brazilian regulations provide that a state-owned company, such as us, must use the proceeds of “external credit operations” (i.e., foreign currency 
borrowings),  subject  to  some  exceptions,  exclusively  to  refinance  outstanding  financial  obligations.  The  use  will  be  restricted  according  to  the
declared use of proceeds, and until so used, these proceeds must be deposited as directed by the Central Bank. The deposit requirement does not
apply in the case of import financing and financing transactions involving multilateral and official organizations, such as the JBIC, the World Bank
and the Inter-American Development Bank. On December 31, 2007 there was no restricted cash under this regulation.  

77 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Capital Requirements 

We  have,  and  expect  to  continue  to  have,  substantial  liquidity  and  capital  resource  requirements.  These  requirements  include  debt-service 
obligations,  capital  expenditures  to  maintain,  improve  and  expand  our  water  and  sewage  systems,  payment  of  pension  plan  and  other  employee
benefits, including pension plan payments to certain of our former employees on behalf of the State, and dividend payments and other distributions
to our shareholders, including the State.  

Debt-Service and Other Contractual Obligations. Our debt service obligations and other contractual obligations as of December 31, 2007 were as
follows: 

Table of Contents

2008

2009

2010
2011
(in millions of reais)

2012 and
thereafter

Total

Outstanding long-term debt due 
Operational lease 
Pension benefits - SABESPREV(1)
PAES program 
Take-or-pay contracts 
Total 
__________________ 
(1) Based on actuarial estimates. Amounts payable in any specific year depend on unknown factors including life expectancy. 

897.4  
0.3  
-  
43.9  
133.4  
1,075.0  

852.6 
0.6 
-
43.9 
128.2 
1,025.3 

1273.1 
2.6 
-
43.9 
128.9 
1,448.5 

742.1 
7.8 
-
43.9 
182.0 
975.8 

1,920.0 
- 
365.2 
66.0 
133.8 
2,485.0 

5,685.2 
11.3 
365.2 
241.6 
706.3 
7,009.6 

We believe that we can meet the maturity schedule through a combination of funds generated by operations, the net proceeds of new issuances of
debt securities in the Brazilian and international capital markets and additional borrowings from domestic and foreign lenders. Our borrowings are
not affected by seasonality. For information concerning the current interest rates borne by our outstanding indebtedness, see note 10 to our financial
statements.  

Capital  Expenditures.  Historically,  our  capital  expenditures  have  been  significantly  financed  with  resources  from  international  and  national
multilateral  agencies  and  development  banks.  We  generally  include  in  our  capital  expenditure  program  for  the  following  year  the  amount  of
investment that was not realized in the previous year. In 2004, our cash disbursements for purchases of property, plant and equipment under our
capital expenditure program totaled R$670.3 million. In 2005, we planned to invest approximately R$758.0 million under our capital expenditure
program,  but  effectively  invested  R$660.4  million.  As  of  December  31,  2006,  we  had  invested  R$904.9  million  under  our  capital  expenditure
program.  We  have  budgeted  investments  in  the  amount  of  approximately  R$5.87  billion  from  2007  through  2010,  of  which  we  spent  R$921.1
million in 2007.  

Pension Plan Payments and Employee Benefits. We have been making State-mandated special retirement and pension payments to certain former
employees who were employed by our predecessor entities prior to May 1974. These special payments totaled R$104.6 million in 2007, R$101.7
million in 2006 and R$96.4 million in 2005. The State is required to reimburse us for these amounts, but has not been paying us on a timely basis.
The State’s obligation to us for these amounts is recorded under receivables from shareholder on the balance sheet and totaled R$879.1 million as
of December 31, 2007. As of December 31, 2005 and 2006 these receivables had reached R$672.7 million and R$774.5 million, respectively, and
they were classified as non-current assets in our financial statements. The special payments to former employees made by us are not reflected in
our statement of  operations,  but nonetheless represent a significant component of our liquidity  requirements. Although we have had discussions
with the State regarding more timely reimbursement for the special payments to former employees, we cannot assure you as to when or whether
such payments will be made by the State. We may continue to be held responsible for these special payments to former employees, irrespective of
whether the State reimburses us or not. For further information on State-mandated special retirement and pension payments made by us to certain 
former employees, see “Item 7.B. Major Shareholders and Related Party Transactions—Related Party Transactions.”

78 

Table of Contents

Tax Financing Agreements. We did not make payments in respect of certain Brazilian federal income tax and social contribution liabilities during
the period from 1991 to mid-1996 mainly because we were contesting certain assessments by the federal tax authorities and, in the case of 1993
and  1994,  because  we  did  not  have  sufficient  funds  to  meet  all  of  our  then  existing  liquidity  and  capital  resources  requirements.  Under  the
Programa de Recuperacão Fiscal—REFIS tax recovery program, we entered into an agreement with the Brazilian tax authorities regarding these
tax obligations and have agreed to make payments on them in monthly installments ending in 2005. We were also required to pay interest on the
unpaid balance of this tax liability. However, in July 2003, we included the amounts due under the REFIS program in the PAES program, which is 
an alternative payment plan for taxes owed. In accordance with this settlement agreement, we are paying amounts due, of approximately R$317.0
million, in 120 monthly installments, from July 2003. See note 12 to our financial statements. Payments in respect of this aggregate tax liability
continue to constitute a liquidity and capital resource requirement that must be satisfied.  

Dividend  Distributions.  We  are  required  by  our  by-laws  to  make  dividend  distributions,  which  can  be  made  as  payments  of  interest  on 
shareholders’ equity to our shareholders in an amount equal to not less than 25% of the amounts available for distribution. The aggregate amount of
distributions we made for 2005, 2006 and 2007 were R$348.2 million, R$270.8 million and R$300.7 million, respectively.  

On  April  28, 2005,  our  board  of directors approved  the  payment  of  dividends,  in  the  form  of  interest  on shareholders’ equity,  in  the  amount  of
R$38.2 million, to be paid within 60 days after our 2006 shareholders’ meeting to shareholders of record as of May 9, 2005. On June 23, 2005, our
board of directors approved the payment of dividends, in the form of interest on shareholders’ equity, in the amount of R$66.8 million, to be paid 
within  60  days  after  our  2006  shareholders’  meeting  to  shareholders  of  record  as  of  July  6,  2005.  On  October  20,  2005,  our  board  of  directors
approved the payment of dividends, in the form of interest on shareholders’ equity, in the amount of R$85.2 million, to be paid within 60 days after
our 2006 shareholders’ meeting to shareholders of record as of November 3, 2005. On December 15, 2005, our board of directors approved the
payment  of  dividends  in  the  form  of  interest  on  shareholders’  equity  in  the  amount  of  R$158.1  million,  to  be  paid  within  60  days  of  our  2006
shareholders’ meeting to shareholders of record as of December 28, 2005. On April 20 and December 14, 2006, our board of directors approved the
payment of dividends, in the form of interest on shareholders’ equity, in the amount of R$129.6 million and R$141.2 million, respectively. The
payments of interest on shareholders’ equity declared in 2007 began being made on June 27, 2008.  

On October 18, 2007 and February 21, 2008, our board of directors approved the payment of dividends, in the form of interest on shareholders’
equity, in the amount of R$268.8 million and R$ 31.9 million, respectively. The payments of these dividends began being made in June 27, 2008.  

As of December 31, 2007, our dividends payable to the State were in the amount of R$552.0 million. The dividends due from 2004 to 2006, in the
amount of R$ 400.8 million (R$408.2 million adjusted until March 2008), have been paid during the first quarter of 2008. We are currently unable
to determine the amount, if any, of the remaining portion of these declared dividends that the State will apply to the current and future accounts
receivable owed to us by the State or its controlled entities.

Interest on Shareholders’ Equity 

Brazilian  corporations  are  permitted  to  distribute  dividends  in  the  form  of  a  tax-deductible  notional  interest  expense  on  shareholders’  equity  in 
accordance with Law No.  9,249, dated December 26, 1995, as amended. The rate  at  which  tax-deductible interest  may  be paid is  limited to the 
product of the average TJLP and shareholders’ equity during the relevant period and cannot exceed the greater of:  

  50%  of  net  income  (before  taking  into  account  the  distribution  and  any  deductions  for  income  taxes  and  after  taking  into  account  any 

deductions for social contributions on net profits) for the period in respect of which the payment is made; and 

  50% of retained earnings.  

Distribution of interest on our shareholders’ equity is a tax-deductible expense, for both income tax and social contribution purposes. The amount
paid to shareholders as interest on shareholders’ equity, net of any withholding tax, may be included as part of any mandatory dividend. We are 
required to pay a mandatory dividend of not less than 25% of our net income, subject to some exceptions and adjustments.  

79 

Table of Contents

For tax purposes, payments of interest on shareholders’ equity are recognized when the payments are declared, not when they are paid, within 60
days of the following general shareholders’ meeting. Interest on shareholders’ equity is recorded as part of, but is immediately reversed under, the 
financial  expenses  line  item  in  our  statement  of  operations.  The  tax  deduction  relating  to  distributions  of  interest  on  shareholders’  equity  is 
reflected under the income tax and social contribution line items in our statement of operations. This tax benefit consequently contributes positively
to net income in our statement of operations.  

5.C. Research and Development, Patents and Licenses, Etc. 

Our policy is to invest continually in the modernization of equipment and in the technology needed to identify, evaluate and improve our provision
of  basic  sanitation  services  while  promoting  environmental  protection  and  maintaining  our  competitiveness  and  profitability.  Our  research  and
development function is divided into committees according to strategy and complexity. In 2005, 2006 and 2007, we spent R$4.7 million, R$4.9
million and R$3.4 million, respectively, on research and development. We have also partnered with several research institutions.

Trademarks 

We have registered our logo and composite trademark at the –Brazilian National Institute of Industrial Property (Instituto Nacional da Propriedade
Industrial), or INPI, where the following trademarks are also registered: Pura – Programa de Uso Racional da Água; Projeto Tietê; Gotucho, Gota 
Borralheira, Dr. Gastão and Ratantan, (various characters from Clubinho Sabesp, which is a tool for environmental education aimed at children on
our website); Revista DAE; Uso racional da água (Rational Use of Water). 

The following trademarks are pending a final decision by INPI: Parque da Integração; Programa de Recuperação Ambiental; Programa Córrego
Limpo; Programa Onda Limpa; Super H2O (character from Clubinho Sabesp); Signos - Sistema de Informações Geográficas no Saneamento; Hora 
H Sabesp; Ligação Sabesp; and Scorpion (operating and loss management software).  

From the trademarks which are filed, it is worth pointing out two we consider important: Sabesfértil; and Universidade Empresarial Sabesp - UES.  

Patents 

We have the following patents granted by INPI:  

  Water consumption measurement unit  
  Constructive disposal in building hydraulic simulator for didactical purposes  
  Mobile unit for metrological verification of hydrometers in the field  
  Equipment for alignment of motor-pump sets  
  Anti-fraud device in the hydrometer  
  Equipment for washing filters in water treatment stations  
  Motorized activation for automatic correction of dosage of chemical products in conventional dosage devices by gravity  
  Mobile unit for reinforcement of water network pressure  
  System for inspection of sewage network piping  
  Differential pressure measurer with digital reading  
  Valve position sensor  
  Electronic hydrometer  
  Flow deflector  
  Hydraulic bi-stable buoy cock  
  Turbine with evolving profile blade  
  Elastic ring reducer for hydrometer  
  Simplified gear reducer fro hydrometers  
  Turbine with asymmetry in the blades for hydrometer  

80 

Table of Contents

  Hydrometer plating through superior sow  
  Violation protection shield  
  Hydrometer with adjustment through variation of turbine height  
  Hydrometer with adjustment by additive flow  
  Hydrometer with adjustment through counter-flow  
  Bi-stable device for closing of buoy cock  

Software 

To manage our activities, we use software systems which we have acquired from vendors. We have also developed certain computer programs for
management and control of water and sewage treatment facilities, as well as for third-party services management, called “AQUALOG,” “SGL,”
“Electronic Price Quotation” (Cotação Eletrônica de Preços), Eletronic Inverse Auction (Pregão Sabesp Online) and SCORPION. We also have
secured registration of these programs at the INPI and the agency of trademarks. AQUALOG is the only Brazilian software designed to monitor
water treatment. SGL (Bid Management System) is an electronic price quotation system that allows us to view all bid and acquisitions proceedings
in  real  time.  Constantly  improved,  the  SGL  is  able  to  determine  the  appropriate  workflow  for  the  different  bidding  kinds  and  modes.  It  also
includes a large array of nuances that are inherent to each contract or procurement. One of the greatest advantages of the system is undoubtedly the
Eletronic Inverse Auction – a current model for e-commerce. 

5.D. Trend Information

Not applicable.  

5.E. Off-Balance Sheet Arrangements 

We had no off-balance sheet obligations as of December 31, 2005, 2006 and 2007. 

5. F. Tabular disclosure of contractual obligations 

Debt-Service and Other Contractual Obligations. Our debt service obligations and other contractual obligations as of December 31, 2007 were as
follows: 

2008

2009

2010
2011
(in millions of reais)

2012 and
thereafter

Total

Outstanding long-term debt due 
Operational lease 
Pension benefits - SABESPREV(1)
PAES program(2)
Take-or-pay contracts 
Total 
________________________________________ 
(1) Based on actuarial estimates. Amounts payable in any specific year depend on unknown factors including life expectancy.  
(2) The Special Program for Payment of Federal and Social Security-Related Taxes in Installments (Programa de Parcelamento Especial para 
Impostos Federais e Previdenciários), or PAES program, as set forth by Law No. 10,684, dated May 30, 2003. 

897.4  
0.3  
-  
43.9  
133.4  
1,075.0  

1,273.1 
2.6 
-
43.9 
128.9 
1,448.5 

1,920.0 
- 
365.2 
66.0 
133.8 
2,485.0 

852.6 
0.6 
-
43.9 
128.2 
1,025.3 

742.1 
7.8 
-
43.9 
182.0 
975.8 

5,685.2 
11.3 
365.2 
241.6 
706.3 
7,009.6 

We believe that we can meet the maturity schedule through a combination of funds generated by operations, the net proceeds of new issuances of
debt securities in the Brazilian and international capital markets and additional borrowings from domestic and foreign lenders. Our borrowings are
not affected by seasonality. For information concerning the current interest rates borne by our outstanding indebtedness, see note 10 to our financial
statements.  

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ITEM 6. DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES

6.A. Directors and Senior Management

Under our by-laws and Brazilian Corporate Law, we are managed by our board of directors (Conselho de Administração), which currently consists 
of ten directors, and a board of executive officers (Diretoria), which currently consists of six executive officers.  

As  our  controlling  shareholder,  the  State  has  the  ability  to  control  the  election  of  the  board  of  directors  and,  therefore, our  direction  and  future
operations. Upon the election of a new Governor and any resulting change in the administration of the State, all or some of the members of the
board of directors, including the chairman, have historically been replaced by designees of the new administration. The board of directors may in
turn replace some or all of the executive officers.  

Board of Directors

Our  by-laws  provide  for  a  minimum  of  five  and  a  maximum  of  11  directors.  The  members  of  our  board  of  directors  are elected  at  a  general
shareholders’ meeting to serve renewable one-year terms. Each member of our board of directors must be one of our shareholders, under Brazilian
Corporate Law, and a resident of Brazil, under our by-laws. Pursuant to our by-laws, our employees have the option to elect one member of our
board of directors, who must be an employee with more than two years of service to us. Currently, our employees have not elected a director. In
addition,  pursuant to  Brazilian  Corporate  Law,  at  least  one  member  of  the  board  of  directors  of  mixed  capital  companies,  such  as  us,  must be
appointed by the minority shareholders. Finally, according to the Novo Mercado rules, at least 20% of the board of directors must be comprised of
independent members.  

The current members of our board of directors were elected in the general shareholders’ meeting held on April 29, 2008. The tenure of the directors 
will end upon the election of the new members at the general shareholders’ meeting to be held in April 2009. Currently, we have three directors 
considered independent under the Novo Mercado rules.  

Our board of directors ordinarily meets once a month or when called by a majority of the directors or the chairman. Its responsibilities include the
establishment of policy and general orientation of our business and the appointment and supervision of our executive officers. 

The following are the names, ages, position and brief biographical descriptions of the current members of our board of directors:  

Director

Dilma Seli Pena 
Humberto Rodrigues da Silva 
Alexander Bialer 
Reinaldo Guerreiro 
Roberto Yoshikazu Yamazaki 
Manuelito Pereira Magalhães Júnior 
Francisco Vidal Luna 
Mario Engler Pinto Junior 
Antero Paes de Barros Neto 
Jeronimo Antunes 

Age

58 
51 
61 
55 
52 
40 
62 
52 
55 
52 

Position

Date Elected

Chairman 
Vice-Chairman 
Independent Director* 
Independent Director* 
Director 
Director 
Director 
Director 
Director 
Independent Director* 

April 29, 2008 
April 29, 2008 
April 29, 2008 
April 29, 2008 
April 29, 2008 
April 29, 2008 
April 29, 2008 
April 29, 2008 
April 29, 2008 
April 29, 2008 

* These directors comply with the independence requirements established by the Novo Mercado rules.  

Dilma  Seli  Pena. Mrs.  Pena  has  been  the  chairman  of  the  board  of  directors  since  January  2007.  She  holds  a  master’s  degree  in  public 
administration from Escola de Administração de Empresas de São Paulo - Fundação Getúlio Vargas and a degree in geography from Universidade 
de Brasília. She was director of the Sanitation of the Urban Policy Office, director of strategic investments of the Ministry of Planning and director
of  the  National  Water  Agency  of  the  Brazilian  government.  She  was  deputy  secretary  for  the  Economics  and  Planning  Secretariat  of  the
government of the State of São Paulo. Mrs. Pena was a regular member of the Environmental Board of the State of São Paulo Industry Association
(FIESP). Until December 2006, she was a member of our fiscal council. Currently, she is responsible for the State Secretariat of Sanitation and
Energy and manages the board of directors of the following São Paulo state-owned companies: Sabesp, Empresa Metropolitana de Águas e Energia 
S.A.,  or  Emae,  Cia  Energética  de  São  Paulo,  or  CESP  and  Companhia  Paulista  de  Obras  e  Serviços,  or  CPOS.  She  has  published  a  number  of
articles, texts and books in the areas of sanitation, water resources and planning.  

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Humberto Rodrigues da Silva. Mr. Silva has been the vice-chairman of the board of directors since January 2007. He holds a post-graduate degree 
in methodology and projects of municipal and urban development from Escola Nacional de Serviços Urbanos – ENSUR and a post-graduate degree 
in hospital management from Universidade Federal da Bahia. He also holds a degree in public administration from Escola de Administração de
Empresas de São Paulo – Fundação Getúlio Vargas. Currently, he is the deputy secretary of the Political Affairs Department of the government of
the  State  of  São  Paulo.  He  was  the  chief  of  the  Secretariat  of  the  City  of  São  Paulo,  of  the  Secretariat  of  Science,  Technology  and  Economic
Development of the State of São Paulo and also of the Companhia Metropolitana de Habitação de São Paulo - COHAB. From 1999 to 2004, he 
was a consultant and the director of planning and projects of the São Paulo Development Corporation. He was a member of the board of directors
of the Fundação Paula Souza, of the Instituto de Pesquisa Tecnológica de São Paulo and of the São Paulo Turismo S.A., or SPTURIS. He worked
for the government of the State of Bahia and for the municipality of Camaçari.  

Alexander Bialer. Mr. Bialer has been a member of our board of directors since April 2003. He holds a degree in mechanical engineering from
Instituto Tecnológico da Aeronáutica—ITA and a specialization degree in systems administration from the Escola de Administração de Empresas
de São Paulo - Fundação Getúlio Vargas. He is also the chairman of the board of directors of GE Hydro Inepar, a member of the board of directors
of  AVIANCA  and  Romi  and  the  chairman  of  the  executive  board  of  the  Synergy  Group.  Additionaly,  Mr.  Bialer  is  a  member  of  the  advisory
councils  of  GE  Previdência,  GE  Celma,  Associação  Brasileira  de  Infraestrutura  e  Indústrias  de  Base  -  ABDIB  and  Instituto  UNIEMP  (Fórum 
Permanente das Relações Universidade – Empresa).  

Reinaldo  Guerreiro.  Mr.  Guerreiro  has  been  a  member  of  our  board  of  directors  since  January  2007.  He  holds  a  Ph.D  in  accounting  and
controllership, a master’s degree in accounting and controllership and a bachelor’s degree in accounting sciences, all of them from Faculdade de 
Economia, Administração e Contabilidade da Universidade de São Paulo – FEA-USP, where he is the vice-director of the Economy, Business and
Accounting  College,  He  also  headed  the  Department  of  Accounting  and  Actuarial  Sciences  at  FEA-USP  for  many  years.  He  was  a  corporate 
consultant cooperator for some international consultancy offices such as Roberto Dreyfuss Consultores, Klynveld Main Goerdeler Auditores S/C,
SBS – Sérgio Bio, Splendore & Associados S/C Ltda. Consultores em Administração, Artur Young Consultores, Biedermann, Bordasch, Ernest &
Whinney, Directa and BDO Consultores. He is also a consultant specialized in economic management. He has worked in many projects in the areas 
of  economic  management,  costs,  budgeting  and  information  systems  in  several  companies  such  as  Grupo  Zillo  Lorenzetti,  Grupo  Feital,
Construtora Mendes Junior, Starret Ind. e Com., CMTC, FEPASA, COSIPA, MAFERSA, Usina Santa Elisa, Gillete do Brasil, Hansen Máquinas e
Equipamentos, CIPLA Indústria do Lar, Metalúrgica Matarazzo, Elebra Informática, NEC do Brasil, CEF, Banco do Brasil. 

Roberto  Yoshikazu  Yamazaki.  Mr.  Yamazaki  has  been  a  member  of  our  board  of  directors  since  January  2007.  He  holds  a  degree  in  business
administration. He currently acts as technical advisor of the Treasury Secretariat of the State of São Paulo. From 2006 to January 2007, he was
deputy secretary of the Treasury Secretariat of the State. From 2003 to 2006, he was coordinator of the Financial Administration of the State. From
1997  to  2003,  he  was  technical  director  of  the  State  Treasury  Department.  From  1995  to  1997,  he  acted  as  technical  assistant  of  the  State
Coordination of Financial Administration. From 1993 to 1994, he was advisor of the Secretariat of Education of the State of São Paulo. From 1992
to  1993,  he  was  technical  advisor  of  the  Administrative  and  Financial  Board  of  Executive  Officers  at  Companhia  de  Entrepostos  e  Armazéns
Gerais  de  São  Paulo,  or  CEAGESP.  From  1976  to  1992,  he  was  administrative  and  financial  manager  of  TERRAFOTO  S/A  –  Atividades  de
Aerolevantamentos. 

Manuelito  Pereira  Magalhães  Júnior.  Mr.  Magalhães  has  been  a  member  of  the  board  of  directors  since  January  2007.  He  is  a  candidate  for  a
master’s  degree  in  economic  sciences  from  the  Instituto  de  Economia,  Universidade  Estadual  de  Campinas  –  UNICAMP.  He  holds  a  degree  in 
economic sciences from the Instituto de Economia – UNICAMP. He was a member of the board of directors of the Companhia de Engenharia de
Tráfego de São Paulo (CET-SP), of the Companhia Metropolitana de Habitação de São Paulo - COHAB and, of the Empresa de Tecnologia de 
Informação e Comunicação de São Paulo - PRODAM-SP. He was the parliamentary advisor in the Federal Senate. From 1998 to 2002, he was the
special advisor of the Minister of Health. From 2005 to 2006 he was the ombudsman of the National Supplementary Health Agency, or ANS. From
2005 to 2006, he was the deputy secretary of the Planning Secretariat and the secretary of Planning of the Municipality of São Paulo. He was also
the technical advisor, the secretary of finance and the director of the Department of Advisory, Planning and Management in the municipality of
Campinas, State of São Paulo. 

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Francisco Vidal Luna. Mr. Luna has been a member of our Board of Directors since July 2007. He holds a doctoral degree in Economics from
Faculdade de Economia e Administração da Universidade de São Paulo – USP. He was a researcher and professor at the Institute for International 
Economic Research (IPE) and at the Foundation Institute of Economic Research (Fipe) until his retirement in 1996. In the public sector, he acted as
Secretary of Planning and Budget of the Municipality of the State of São Paulo, and worked at the Treasury Secretariat of the State of São Paulo
and at the Ministry of Planning in the Sarney administration, among others. In the private sector, he was vice chairman and chairman of Banco
Inter American Express S.A. He also acted as member of the Advisory Council of Sudene; member of the Board of Directors of Banco Nacional de
Desenvolvimento  Econômico  e  Social  (BNDES);  superintendent  of  the  Institute  of  Planning,  Iplan/Ipea,  of  the  Federal  Planning  Secretariat;
Special Economic Affairs Secretary of the Federal Planning Secretariat, in the João Sayad administration; Head of the Economic Affairs Advisory
Board of the Treasury Secretariat of the State of São Paulo, and Executive Secretary of the Financial Coordination Board of São Paulo State in
Franco Montoro administration. 

Mário Engler Pinto Junior. Mr. Engler has been a member of our board of directors since March 2006. He holds a law degree from the Faculdade
de Direito da Universidade de São Paulo, where he is currently a Commercial Law Ph.D. student. Mr. Engler has been a public attorney for the
State of São Paulo Public Attorney's Office since 1984, having been the adjunct general public attorney from 2000 to 2003. As an attorney of the
State of São Paulo, Mr. Engler rendered legal advice to the State Privatization Program (Programa Estadual de Desestatização – PED) and to the 
Public-Private  Partnership  Program  of  the  State  of  São  Paulo  (Programa  Estadual  de  Parcerias  Público-Privadas).  Mr.  Engler  was  the  Chief
Executive Officer for Companhia Paulista de Parcerias (CPP) from 2004 to 2006. Mr. Engler has been a member of the board of directors of the
Conselho de Defesa dos Capitais do Estado – CODEC (an institution responsible for the control and supervision of state-owned companies) since 
2002. Mr. Engler is also a member of the board of directors of Companhia Paulista de Parcerias – CPP. As the public attorney for the State of São 
Paulo Public Attorney's Office, Mr. is Engler currently responsible for the legal advisory department for the Secretariat of Treasury.  

Antero Paes de Barros Neto. Mr. Barros Neto has been member of the board of directors since May 2007. He is a journalist and broadcaster. He
holds an undergraduate law degree from UPIS – União Pioneira de Integração Social, currently pursuing a graduate degree in constitutional law at
IDP in Cuiabá, State of Mato Grosso. He was a council member of the municipality of Cuiabá from 1982 to 1986. He was a congressman from
1986  to  1990.  He  was  the  State  Chief  of  Staff  and  Communications  Secretary  of  Mato  Grosso  during  the  administration  of  Dante  de  Oliveira,
Senator  of  the  Republic  from  1999  to  January  2003,  where  he  held  the  position  of  second  vice-president  and  second  Secretary.  He  was  the 
chairman of the  parliamentary  inquiry commission,  or CPMI, on Banestado.  He  was an  editor  of the  Diário de  Cuiabá, Equipe, Diário de  Mato
Grosso newspapers. He was the executive officer and editor of Jornal do Dia newspaper, Artistic Director of Real FM and Real AM radio stations,
and  also  editor  and  reporter  of  A  Voz  D’  Oeste,  Cultura  and  Difusora  radio  stations,  and  Artistic  Director  of  Gazeta  television  broadcast.  He
worked as a reporter and broadcaster of Centro América television (Globo Network) and Brasil Oeste television (Bandeirantes Network). 

Jerônimo  Antunes.  Mr.  Antunes  has  been  a  member  of  our  Board  of  Directors  since  April  2008.  He  holds  a  Master’s  and  PhD  degree  in 
controllership  and  accounting  from  the  Universidade  de  São  Paulo  (Sao  Paulo  University)  and  holds  a  degree  in  Business  Administration  and
Accounting.  He  is  an  associate  of  Antunes  Auditores  Associados  since  September  2002.  He  has  been  a  certified  Public  Accounting  and
Controllership Independent Consultant since 1977. He has been a professor at School of Business Administration and Accountancy of Sao Paulo
University – FEA-USP since 1999, a MBA Capital Market professor of FIPECAFI/FEA/USP since 2000, a MBA Internal Audit Professor since
2005, an MBA Internal Controls professor since 2007. He was a MBA Corporate Governance professor of Banco do Brasil – FIPECAFI/FEA/USP 
from 2004 to 2005 and a professor of Universidade Federal do Ceará from 2000 to 2005. He was a director of IPECAFI from 2000 to 2007. He was
a board member and director of IBRACON from 1998 to 2006. He was a director of ANEFAC from 1994 to 2000. 

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Board of Executive Officers 

Our executive officers are responsible for all matters concerning our day-to-day management and operations. Members of our board of executive 
officers have individual responsibilities established by our board of directors and our by-laws. 

The following are the names, ages, position and brief biographical descriptions of our board of executive officers: 

Executive Officer

Gesner José de Oliveira Filho 
Marcio Saba Abud 
Rui de Britto Álvares Affonso 

Paulo Massato Yoshimoto 
Umberto Cidade Semeghini 
Marcelo Salles Holanda de Freitas 

Age

52 
51 
50 

55 
58 
52 

Position

Chief Executive Officer 
Corporate Management Officer 
Chief Financial Officer and Investor 
Relations Officer 
Metropolitan Officer 
Regional Systems Officer 
Planning and Technology Officer 

Date Elected

June 26, 2007 
June 26, 2007 
June 26, 2007 

June 26, 2007 
June 26, 2007 
June 26, 2007 

Gesner José de Oliveira Filho. Mr. Oliveira Filho has been our chief executive officer since January 2007. He holds a Ph.D degree in economics
from the University of California, Berkeley, a master’s degree in economics from the Instituto de Economia da UNICAMP, a bachelor’s degree in 
economics from the Faculdade de Economia e Administração da Universidade de São Paulo – USP. From 1996 to 2000, he was the chairman of the 
Administrative  Council  of  Economic  Protection,  (Conselho  Administrativo  de  Defesa  Econômica),  or  CADE.  From  1993  to  1995,  he  was  the 
deputy  secretary  of  the  Secretariat  of  the  Economic  Policy  of  the  Ministry  of  Finance.  In  1995,  he  was  the  interim  secretary  of  the  Economic
Monitoring  of  the  Ministry  of  Finance.  He  was  also  the  chairman  of  the  Instituto  Tendências  de  Direito  e  Economia,  the  managing  partner  of
Tendências  Consultoria  Integrada,  a  consultant  and  an  arbitrator  in  the  areas  of  regulation  of  infrastructure  and  defense  of  competition.
Additionally, Mr. Oliveira Filho was a professor in the Economics Department at Fundação Getúlio Vargas and Visiting Professor of the Center for
Brazilian Studies of Columbia University (USA). 

Marcio  Saba  Abud.  Mr.  Abud  has  been  our  corporate  management  officer  since  January  2007.  He  holds  a  degree  in  Economic  Sciences  from
Faculdade de Economia e Administração da Universidade de São Paulo – FEA/USP. He has broad experience in the financial area and in various 
segments  of  the  domestic  and  international  markets,  such  as  treasury,  capital  markets,  domestic  and  international  structured  operations  and
management of international securities and note issue programs. He also has experience in foreign trade financing, investment fund creation and
management, corporate customer service, and establishment and management of credit lines. He worked at Unibanco from March 1980 to August
1984, Banco Boavista from March 1985 to October 1986, and at Banco Westlb do Brasil S/A from April 1987 to January 2007. 

Rui de Britto Álvares Affonso. Mr. Affonso has been our chief financial officer and investor relations officer since July 2003. Mr. Affonso holds a
Ph.D  and  a  master’s  degree  in  economics  from  Universidade  Estadual  de  Campinas  –  UNICAMP,  and  a  degree  in  economics  from  the 
Universidade de São Paulo – USP. He has been a professor at Instituto de Economia da Universidade Estadual de Campinas – UNICAMP since 
1986, a professor at Faculdade de Economia e Administração—USP from 1983 to 1999, and a director of public economy at FUNDAP from 1994
to 2003. He also represents Brazil on the board of the Forum of Federations (a non-governmental entity based in Canada) since 2000. Mr. Affonso 
has also held several positions at the State Government. 

Paulo Massato Yoshimoto. Mr. Massato has been our metropolitan officer since February 2004. He holds a degree in civil engineering from Escola
de Engenharia  de  Lins. Mr.  Yoshimoto has  been  working at  Sabesp  since  1983,  and has  held the following  positions: executive  assistant to  the
operations  office  and  head  of  the  water  production,  maintenance,  technical  and  management  of  water  losses,  and  metropolitan  planning  and
development  departments.  Mr.  Yoshimoto  has  also  held  a  number  of  different  positions  at  the  Empresa  Metropolitana  de  Planejamento—
EMPLASA, from 1975 to 1983. 

Umberto Cidade Semeghini. Mr. Semeghini has been our regional systems officer since January 2007. He holds a degree in electrical engineering
from the Faculdade de Engenharia Industrial – FEI. He was secretary of planning of the Ministry of Transport and the executive officer of Gerentec
Engenharia.  He  has  experience in the  operation of  systems, consulting services  in the development of studies and projects for water supply and
sanitary sewage systems, highway systems and, through partnerships with domestic and foreign companies, development of economic engineering
studies (i.e., definition of tariff structures for public services).  

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Marcelo  Salles  Holanda  de  Freitas.  Mr.  Freitas  has  been  our  technology  and  planning  officer  since  January  2007.  He  holds  a  degree  in  civil
engineering  post-graduation  degree in  sanitation  from  the  Escola Politécnica da Universidade de  São  Paulo  – USP.  He  also  has a specialization 
degree  in  business  administration  from  the  IBMEC.  He  is  a  regular  member  of  some  of  the  most  important  institutions  and  associations  of  the
sanitation  and  environment  market.  He  was  the  vice-chairman  for  the  interior  and  for  the  metropolitan  region  at  Sabesp.  He  was  the  executive
officer of projects of the Ondeo Services do Brasil, executive officer of sanitation of Suez Ambiental, CEO of Águas do Amazonas and executive
officer of the sanitation services of ETEP.  

6.B. Compensation 

Pursuant  to  Brazilian  Corporate  Law,  our  shareholders  are  responsible  for  establishing  the  aggregate  amount  of  compensation  we  pay  to  the
members of our board of directors, members of our fiscal council and our executive officers.  

For the year ended December 31, 2007, the aggregate compensation, including benefits in kind granted, that we paid to members of our board of
directors  and  to  our  executive  officers  for  services  in  all  capacities  was  approximately  R$2.4  million.  An  additional  amount  of  R$0.5  million
related to the 2007 bonus, was paid in April, 2008.  

Profit Sharing and Pension Plans 

We  have  established  a  pension  and  benefits  fund  (Fundação  Sabesp  de  Seguridade  Social),  or  SABESPREV,  to  provide  our  employees  with 
retirement  and  pension  benefits.  This  pension  plan  provides  defined-benefit  payments  to  former  employees  and  their  families.  Both  we  and  our
employees make contributions to the pension plan. Our contributions include the responsibility assumed relating to service prior to the constitution
of  SABESPREV,  which  is  payable  up  to  February  2011.  We  made  contributions  to  the  pension  plan  totaling  R$11.3  million  in  2005,  R$11.4
million in 2006 and R$ 11.9 million in 2007. Based on independent actuarial reports, as of December 31, 2007, our obligation under this plan was
R$365.2 million. See note 13 to our financial statements. 

Since 1996, we have annually negotiated with the unions the profit-sharing plan. We did not pay any profit-sharing amounts to our employees due 
to State Decree No. 43,794, which prohibited any profit-sharing amounts to be paid in 1999 to employees of State-controlled companies, including 
us.  On  April  14,  2000,  the  State  issued  Decree  No.  44,836  which  allows  for  the  payment  of  profit-sharing  amounts  on  an  exceptional  basis, 
provided that specific authorizations are obtained by us from the Wages Policy Commission (Comissão de Política Salarial). We have obtained 
this authorization every year since 2000 and, therefore, paid profit-sharing amounts to our employees during this period. 

The goals evaluate the business performance in the economic-financial, operating and administrative aspects. Over the years, the programs have
suffered  some  changes.  In  1996  every  active  employee,  who  has  been  working  over  6  months  for  the  Company,  was  entitled  to  receive  profit
sharing. As of 1997, every active employee, who has been working over 3 months for the Company, was entitled to receive profit sharing, paid in
proportion  to  the  months  worked.  From  2000  to  2004,  the  general  goals  were  established  to  evaluate  us  as  a  whole,  and  other  goals  were
established to evaluate our various business units. As from 2005, all of the goals established evaluate us as a whole. The payments are reduced
proportionately if the goals are not fully attained. Up to 2006, the payment was effected in a six-month basis. The program for 2006 was paid on an 
annual basis.  

We recorded profit-sharing expenses of R$44.3 million in 2005, R$79.5 million in 2006 and R$ 51.3 million in 2007. We believe that the profit-
sharing plan has, in the past, contributed to increased employee productivity. We do not have a stock-option plan for our employees.

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6.C. Board Practices 

The members of our board of directors are elected at a general shareholders’ meeting to serve renewable one-year terms. Our board of directors 
ordinarily meets once a month or when called by a majority of the directors or the chairman. See “– Board of Directors.”

Our board of executive officers is composed of six executive officers appointed by our board of directors for renewable two-year terms. Meetings 
of our board of  executive  officers are held weekly in the  case  of ordinary  meetings or when called by  the chief executive officer in the case of
special or extraordinary meetings. See “– Board of Executive Officers.” 

None of our directors and executive officers is party to an employment contract providing for benefits upon termination of employment, except for
those officers who are also our employees, in which case they are granted all benefits regularly applicable. 

Fiscal Council (Conselho Fiscal)

Our Conselho Fiscal, which is established on a permanent basis and generally meets once a month, consists of five members and five alternates.
The current members of our Conselho Fiscal were elected in the shareholders’ meeting held on April 29, 2008. Their tenure will end in 2009. The 
primary  responsibility  of  the  fiscal  council,  which  is  independent  from  management  and  from  the  external  auditors  appointed  by  our  board  of
directors, is to review our financial statements and report on them to our shareholders.  

The following are the current members and alternate members of our fiscal council: 

Fiscal Council Members

Alternates

Sandra Maria Giannella 
Jorge Michel Lepeltier 
Atílio Gerson Bertoldi 
Maria de Fátima Alves Ferreira 
Emília Ticami 

Audit Committee 

Vanildo Rolando Neubauer 
Alexandre Luiz Oliveira de Toledo 
Deraldo de Souza Mesquita Junior 
Tomás Bruginski de Paula 
Ney Nazareno Sígolo 

Our by-laws provide for an audit committee to be comprised of three board members, who shall cumulatively comply with the requirements of (1)
independence,  (2)  technical  expertise,  and  (3)  availability.  The  members  may  be  appointed  simultaneously  as  their  appointment  to  the  board  of
directors, or by later resolution of the board of directors. 

The audit committee is responsible for assisting and advising the board of directors in its responsibilities to ensure the quality, transparency and
integrity of the Company’s published financial information. To this end, the audit committee supervises all matters relating to accounting, internal
controls  and  the  internal  and  independent  audit  functions.  The  audit  committee  and  its  members  have  no  decision  making  powers  or  executive
functions.  

The  minimum  availability  required  from  each  member  of  the  audit  committee  is  thirty  hours  per  month.  Under  our  bylaws,  the  members  shall
exercise their roles for the same period as their corresponding term of office, or until otherwise resolved by the general shareholders’ meeting or by 
resolution of the board of directors. 

At a board meeting held on May 8, 2008, the following members of the board of directors were elected to serve on our audit committee:

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Director

Jerônimo Antunes 
Reinaldo Guerreiro 
Mario Engler Pinto Junior 

Corporate Governance Practices 

Table of Contents

Position

Coordinator and Financial Expert 
Member 
Member 

The significant differences between our corporate governance practices and the New York Stock Exchange standards can be found on our website,
www.sabesp.com.br. The information found at this website is not incorporated by reference into this document.  

6.D. Employees 

As of December 31, 2007, we had 16,850 full-time employees. In 2007, we had an average of 337 trainees and 528 apprentices (aprendizes), as 
defined by Federal Law No. 10,097 of December 19, 2000. 

The following table sets forth the number of our full-time employees by main category of activity and geographic location as of the dates indicated: 

Total number of employees 
Number of employees by category of activity: 
   Projects and operations 
   Administration 
   Finance 
   Marketing
Number of employees by corporate division: 
   Head office 
   São Paulo Metropolitan Region 
   Regional Systems 

As of
December 31,
2006

2007

2005

17,448 

11,450 
2,812 
614 
2,572 

2,029 
8,046 
7,373 

16,978  

11,145  
2,735  
606  
2,492  

1,981  
7,732  
7,265  

16,850 

11,130 
2,794 
564 
2,362 

1,618 
8,004 
7,228 

The  average tenure of our employees is approximately 17 years. We also outsource certain services such as maintenance, delivery of water and
sewage bills, meter reading, catering and security. We believe that our relations with our employees are generally satisfactory.

Approximately  70%  of  all  our  employees  are  members  of  unions.  The  four  main  unions  that  represent  our  employees  are  the  Sindicato  dos 
Trabalhadores em Água, Esgoto e Meio Ambiente de São Paulo—SINTAEMA, Sindicato dos Trabalhadores da Região Urbana de Santos, São 
Vicente, Santos Metropolitan Region, Litoral Sul e Vale Ribeira—SINTIUS, the Sindicato dos Engenheiros do Estado de São Paulo—SEESP and 
the Sindicato dos Advogados de São Paulo—SASP. Our most recent collective bargaining agreements, which became effective on May 1, 2007
and  expired  on  April  30,  2008,  did  not  contemplate  total  job  protection  for  our  employees.  However,  we  had  a  formal  understanding  with  the
unions that represent our employees that we would not dismiss more than 2.0% of our current employees before April 30, 2008. We are negotiating
our collective bargaining agreement for 2008-2009. We have offered a 0.5% increase over the inflation index and a 10% readjustment for employee
grocery and lunch related benefits. In addition, we have offered that we will not dismiss more than 2% of our employees before April 30, 2009.
SINTAEMA and SASP have accepted the offer. The other two unions, SINTIUS and SEESP, current have not accepted the offer regarding wages
readjustment. For the employees represented by these two unions (SINTIUS and SEESP), the final decision now depends on a verdict of the Labor
Court. We have experienced the following strikes in the last five years, none of which interrupted the essential services that we provide: a two-day 
strike in May 2003, a two-day strike in May 2004, a two-day strike in June 2005, a one-day strike in May 2006 and any strike in 2007. In June 
2008 we experienced a four-day strike. Under Brazilian law, our non-administrative employees are considered “essential employees” and therefore 
are limited in their right to strike.

6.E. Share Ownership 

As of May 31, 2008, the members of the board of directors and the executive officers owned an aggregate of 4,807 common shares. The members
of our board of directors and our executive officers, on an individual basis and as a group, beneficially own less than 1% of our common shares.
See “Item 7A. Major Shareholders and Related Party Transactions – Major Shareholder” for more information. As of the same date, none of our
directors and executive officers owned any stock option plans. 

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ITEM 7. MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS 

7.A. Major Shareholder 

Our outstanding share capital as of June 30, 2008 consisted of 227,836,623 common shares, without par value. Under our by-laws and the laws of
the State of São Paulo, the State is required to own at least one-half plus one of our outstanding common shares. All of our shareholders, including 
the State, have the same voting rights.  

The following table sets forth ownership information for each of our shareholders that beneficially owned 5.0% or more of our common shares and
for our officers and directors, individually and as a group, as of June 30, 2008. 

Common shares*

Shares

%

State of São Paulo 
Directors and executive officers of Sabesp(1)
Others 
Total(2)
________________________________________ 
(1) Our directors and executive officers collectively own less than 0.1% of our outstanding common shares.  
(2) As of June 30, 2008, 25.85% of our outstanding common shares were held by 2,406 registered shareholders in Brazil.  
* 

114,508,087  
4,808  
113,323,728  

227,836,623  

After June 4, 2007 our common shares have been traded considering the reverse stock split. Under U.S. GAAP the SFAS N°128 requires the
retroactive restatement of earnings-per-share computations for stock dividends, stock splits, and reverse splits (see note 26 (r) to our financial
statements).  

50.3% 
0.0% 
49.7% 

100% 

7.B. Related Party Transactions 

Transactions with the State of São Paulo 

We have entered into extensive transactions with the State of São Paulo, which is our controlling shareholder, and we expect to continue to do so.
The  State of São Paulo is  our largest customer, it  owns some of  the facilities we use  in our business, it is one of the governmental entities  that
regulate our business, and it has assisted us in obtaining financing on favorable terms.  

Many of our transactions with the State of São Paulo reflect policies of the State that depend on decisions of elected officials or public servants and
are accordingly subject to change. Among the practices that could change are those described below concerning the provision of State guarantees,
and the terms on which we use state-owned reservoir facilities. 

Provision of Services 

We provide water and sewage services to the Federal Government, the State and municipal governments and government entities in the ordinary
course of our business. Sales of water and sewage services to the State, including State entities, totaled approximately R$335.8 million for the year
ended December 31, 2007. Our accounts receivable from the State totaled R$446.4 million as of December 31, 2007. In addition, as required by
law, we invest our cash and cash equivalents with government financial institutions in short-term securities.  

Payment of Pensions 

Pursuant to a law enacted by the State, certain former employees of some state-owned companies which merged to form Sabesp, who provided
service  to  us  between  our  inception  and  1974,  when  the  law  was  prospectively  repealed,  acquired  a  legal  right  to  receive  supplemental  pension
benefit  payments  which  rights  are  referred  to  as  “Plan  G0.”  These  amounts  are  paid  by  us,  on  behalf  of  the  State,  and  are  claimed  by  us  as
reimbursements from the State, as primary obligor. In 2007, we made payments to former employees of R$104.6 million in respect of Plan G0. The
State did not make any reimbursements in this period. See note 6 to our financial statements. 

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Agreements with the State 

In September 1997, we and the State entered into a memorandum of understanding providing that we would, in effect, apply dividends we declared
that were otherwise payable to the State to offset accounts receivable in connection with the provision of water and sewage services to the State and
its controlled entities. In 1998, 2000 and 2001, we applied dividends, in the form of interest on shareholders’ equity due to the State in respect of its 
shareholding in us to settle a portion of the unpaid accounts receivable from the State. In 1999, we did not pay dividends or other distributions to
our shareholders.  

On December 11, 2001, we entered into an agreement with the State and the State Department of Water and Energy. Pursuant to this agreement,
the State acknowledged and agreed, subject to an audit by a State-appointed auditor, to pay us amounts it owed to us in respect of:  

  water and sewage services we provided to governmental agencies, State-owned autonomous entities and foundations through December 1, 

2001; and 

  supplemental retirement and pension benefits we paid from March 1986 to November 2001 on behalf of the State to former employees of
the State-owned companies which merged to form Sabesp; as we did not reach an agreement regarding these amounts, a joint inquiry has
commenced in order to ensure agreement between us and the State.  

As a result, a portion of these amounts became a long-term receivable from the State in our financial statements on December 31, 2001.  

The  agreement  provided  that  the  State  Department  of  Water  and  Energy  would  transfer  to  us  ownership  of  the  Taiaçupeba,  Jundiaí,  Biritiba,
Paraitinga and Ponte Nova reservoirs, which make up the Alto Tietê system, and that the fair value of these assets would reduce the amounts owed
to us by the State.  

Under the December 2001 agreement, in July and August 2002, a State-owned construction company (Companhia Paulista de Obras e Serviços),
or  CPOS,  on  behalf  of  the  State,  and  an  independent  appraisal  firm  (Engenharia  de  Avaliações),  or  ENGEVAL,  on  our  behalf,  presented  their
valuation  reports  relating  to  the  reservoirs.  Under  the  agreement,  the  arithmetic  average  of  these  appraisals  is  deemed  the  fair  value  of  the
reservoirs. The appraisals contained in these reports were in the amounts of R$335.8 million and R$341.2 million, respectively. Because we had
already made investments in these reservoirs by then, the arithmetic average of the appraisals submitted to our board of directors by August 2002,
R$300.9 million, was net of a percentage corresponding to these investments. Our board of directors approved the valuation reports.  

Under  the  December  2001  agreement,  for  amounts  due  in  excess  of  the  fair  value  of  the  reservoirs,  the  State  is  to  make  payments  in  114
consecutive monthly installments. The nominal amount owed by the State would not be indexed to inflation or earn interest if there was a delay in
concluding the appraisal of fair value. The installments will be indexed on a monthly basis by the IGP-M index, plus 6.0% per year, starting on the 
date the first installment becomes due.  

On October 29, 2003, the Public Prosecution Office of the State of São Paulo (Ministério Público do Estado de São Paulo), on behalf of the people 
of  the  State,  brought  a  civil  public  action  in  a  Trial  Court  of  the  State  of  São  Paulo  (12a  Vara  da  Fazenda  Pública  do  Estado  de  São  Paulo)
alleging that a transfer to us of ownership of the Alto Tietê system reservoirs from the State Department of Water and Energy would be illegal. An
injunction against the transfer of ownership of such reservoirs was granted but was later reversed. However, in October 2004, the court ruled in
favor  of  the  Public  Prosecution  Office  of  the  State  of  São  Paulo,  which  ruling  we  believe  relates  only  to  the  illegality  of  the  transfer  of  the
reservoirs. In response, we filed an appeal which is pending final decision and the State successfully filed an action suspending the lower court’s 
decision until  final judgment is reached by the Court  of Justice of the State of São Paulo. We are unable to predict whether we will succeed in
appealing such decision. However, we currently do not expect that an eventual unfavorable decision would have a material adverse effect on our
business and financial condition. 

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The  December  2001  agreement  also  provided  that  the  legal  advisors  of  the  State  would  carry  out  specific  analyses,  which  have  commenced,  to
ensure agreement among the parties as to the methodology employed in determining the amount of reimbursement for pension benefits owed to us
by the State. The commencement of payments with respect to pension amounts owed to us by the State has been postponed until these analyses are
completed, the appraisal report is approved and the credit assignments relating to the transfer of the reservoirs described above are formalized. In
addition, the transfer of these reservoirs is currently being disputed and we are not certain whether such transfer will be legally allowed. Under the
December  2001  agreement,  the  original  first  payment  was  to  be  made  in  July  2002.  On  March  22,  2004,  we  and  the  State  executed  the  first
amendment  to  the December 2001  agreement.  Under this  amendment, the  State  acknowledged a debt owed to us of  R$581.8 million,  related to
unpaid accounts receivable from the State until February 29, 2004, and we acknowledged the aggregate amount of R$518.7 million due to the State
as dividends in the form of interest on shareholders’ equity. Accordingly, we and the State agreed to set-off each other’s credit up to the limit of
R$404.9  million  (value  adjusted  up  to  February  2004).  The  remaining  amount  of  R$176.9  million  as  of  February  29,  2004  of  the  State’s 
consolidated debt will be paid in monthly consecutive installments from May 2005 until April 2009. These installments will be indexed according
to  the  IPCA  index,  plus  an  interest  rate  of  0.5%  per  month.  With  the  execution  of  the  March  2004  agreement,  we  were  able  to  reconcile  the
compensation of part of the values owed to us by the State for the use of water and sewage services until February 2004 with values owed to the
State  by  us  as  interest  on  shareholders’  equity.  The  remaining  amount  of  interest  on  shareholders’  equity  owed  by  us  to  the  State,  of  R$113.8 
million was netted against accounts overdue after February 2004.  

On December 28, 2007, we and the State Government, through the Treasury Secretariat, signed the second amendment to the terms of the original
Gesp Agreement, (1) agreeing upon the payment in installments of the remaining balance of the First Amendment, amounting to R$133.7 million
(on November 30, 2007), to be paid in 60 monthly and consecutive installments of the same amount, the first of which fell due on January 2, 2008.
The amount of the installments will be monetarily restated in accordance with the variation of the IPCA-IBGE, plus interest of 0.5% per month. (2) 
with respect to the accounts past due and unpaid in the period between March 2004 and October 2007, arising from the provision of water supply
and sewage collection services in the amount of R$256.6 million. (3) The interest on capital due from us to the State, related to the period between
March 2004 and December 2006, in the amount of R$400.8 million, restated between June 2007 and November 2007, based on the Selic (central
Bank  overnight  rate),  was  paid  in  the  period  between  January  and  March  2008.  (4)  The  State  and  we  agreed  on  immediately  resuming  the
compliance with the mutual obligations under the following new assumptions: (a) implementation of an electronic account management system to
facilitate  and  speed  up  the  monitoring  of  payment  processes  and  budget  management  procedures;  (b)  structuring  of  the  Rational  Water  Use
Program (PURA) to rationalize the consumption of water and the amount of the water and sewage bills under the responsibility of the State; (c)
establishment, by the State, of criteria for budgeting so as to avoid the reallocation of amounts to a specific water and sewage accounts as of 2008;
(d) possibility of registering state bodies and entities in a delinquency system or reference file; and (e) possibility of interrupting water supply to
state bodies and entities in the case of nonpayment of water and sewage bills. We have not established any provisions for any amounts due to us by
the State, because we expect to recover these amounts and net losses are not considered probable. 

In 2007, we received payment installments from the State in the amount of R$326.0 million. As of December 31, 2007, our dividends payable to
the State, due from 2004 through 2007, were in the amount of R$552.0 million. We are currently unable to determine the amount, if any, of the
portion of these declared dividends that the State will apply to the current and future accounts receivable owed to us by the State or its controlled
entities.  The  second  amendment  signed  in  2007,  with  the  State  of  São  Paulo  no  longer  requires  the  application  of  dividends  to  offset  accounts
receivable from the State.  

On March 26, 2008, the State of São Paulo, through the Treasury Secretariat and the State Secretariat for Sanitation and Energy, and we entered
into  a  Commitment  Agreement  for  the  settlement  of  outstanding  debts  related  to  the  reimbursement  of  pension  benefits.  Even  though  the  State
acknowledges its debts related to the pension benefits, the State disagrees with the criteria adopted by us to grant and pay the benefits, based on the
legal opinions issued by the State Attorney General, which restrict State actions and prevent the voluntary reimbursement of all amounts paid by
us. 

From  our  standpoint,  the  criteria  adopted  in  the  past  to  grant  and  pay  pension  benefits  were  correct,  as  they  were  based  on  specific  State
authorizations or then effective legal opinions. The prolongation of the disputes between the State and us is the main reason why the parties did not
manage  until  now  to  fully  implement  the  provisions  of  the  São  Paulo  State  Government  Agreement,  described  in  note  6  (iii)  to  our  financial
statements. 

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Based  on  preliminary  information  gathered,  under  the  calculation  and  eligibility  criteria  agreed  by  the  State,  we  estimate  an  Indisputable
Reimbursement  of  approximately  R$936  million,  which  is  comprised  of  monetary  adjustments  based  on  the  IPCA  (Extended  Consumer  Price
Index) (R$605.3 in notional amount). The amount paid by us was R$1,422.8 million, adjusted based on the IPCA (R$879.0 in notional amount).  

The parties agree that this discrepancy should not represent an obstacle to the implementation of the commitments made in the São Paulo State
Government Agreement. See note 6 (iii) to our financial statements regarding the Indisputable Reimbursement. 

Fipecafi (Fundação Instituto de Pesquisas Contábeis e, Atuariais e Financeiras) is validating the Indisputable Reimbursement and the Controversial
Amount, estimated by us. In addition, Fipecafi, is in addition to other independent consulting firm is performing a new evaluation of the Reservoirs
that might be transferred to us as amortization of the reimbursement payable by the State to us. The amount of the Indisputable Reimbursement will
be modified pursuant to the monthly variation of the IPCA from the month of each disbursement made by us to the month that the work will be
completed.  

Once  the  amount  of  the  Indisputable  Reimbursement  is  determined  and  validated  by  the  parties,  and  the  new  evaluation  of  the  reservoirs  is
concluded,  the  State  will  begin  a  30-day  period  for  payment  of  the  Indisputable  Reimbursement,  as  provided  for  by  the  São  Paulo  State
Government Agreement, in 114 monthly, consecutive installments, including the annual IPCA variation, plus interest of 6% per year.  

Dividends 

At a meeting held on January 30, 2002, our board of directors unanimously declared dividends, in the form of interest on shareholders’ equity, in 
an  aggregate  amount  of  R$489.8  million.  This  distribution  was  paid  on  June  25,  2002,  to  shareholders  of  record  as  of  February  7,  2002.
Accordingly, the State was entitled to receive R$432.7 million of this distribution and we paid the State R$347.3 million of this amount. The State
applied approximately R$202.3 million of the dividend it received to settle current accounts receivable owed by the State or its controlled entities.
We have withheld the remaining share  of  the  dividend  that  the  State was  entitled to pending the State’s payment  of certain accounts receivable 
owed to us.  

At a meeting, our board of directors reviewed our 2002 budget, which incorporated the payment to the State, and one of our directors voted against
us making this payment. We cannot assure you that our minority shareholders will not contest the payment of a cash distribution to the State on the
grounds that it is inconsistent with the September 1997 protocol of understanding.  

On April 29, 2002, our board of directors declared dividends, in the form of interest on shareholders’ equity, in an aggregate amount of R$108.2 
million, paid in June 2003 to shareholders of record as of June 17, 2002. The State applied the entire amount of this dividend, or R$77.4 million, to
accounts receivable owed to us.  

On April 24, May 29, and November 20, 2003, and on January 8, 2004, our board of directors approved the payment of dividends, in the form of
interest  on  shareholders’  equity,  in  aggregate  amounts  of  R$40.2  million,  R$118.2  million,  R$154.9  million  and  R$190.8  million,  respectively.
These dividends were paid on June 29, 2004.  

On February 26, 2004, December 16, 2004 and January 13, 2005, our board of directors approved the payment of dividends, in the form of interest
on shareholders’ equity, in the amount of R$39.3 million, R$85.4 million and R$28.2 million, respectively. These dividends were paid on June 28,
2005.  

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On  April  28, 2005,  our  board  of directors approved  the  payment  of  dividends,  in  the  form  of  interest  on shareholders’ equity,  in  the  amount  of
R$38.2 million, to be paid within 60 days after our 2006 general shareholders’ meeting. On June 23, 2005, our board of directors approved the 
payment of dividends, in the form of interest on shareholders’ equity, in the amount of R$66.8 million, to be paid within 60 days after our 2006
shareholders’ meeting to shareholders of record as of July 6, 2005. On October 20, 2005, our board of directors approved the payment of dividends,
in the form of interest on shareholders’ equity, in the amount of R$85.2 million, to be paid within 60 days after our 2006 shareholders’ meeting to 
shareholders of record as of November 3, 2005. On December 15, 2005, our board of directors approved the payment of dividends in the form of
interest on shareholders’ equity in the amount of R$158.1 million, to be paid within 60 days of our 2006 shareholders’ meeting to shareholders of
record as of December 28, 2005. 

On April 20, and December 14, 2006, our board of directors approved the payment of dividends, in the form of interest on shareholders’ equity, in 
the amount of R$129.6 million, and R$141.2 million, respectively, to be paid within 60 days after our 2007 shareholders’ meeting to shareholders 
of record as of May 3, 2006. The amount related to the dividends approved in 2006 for the controlling shareholder, the State of São Paulo, was
R$136.1 million. The payments of interest on shareholders’ equity declared in 2005 began being made on June 27, 2006. The payments of interest
on shareholders’ equity declared in 2006 began being made on June 29, 2007.  

On October 18, 2007 and February 21, 2008, our board of directors approved the payment of dividends, in the form of interest on shareholders’
equity, in the amount of R$268.8 million and R$ 31.9 million, respectively. The payments of these dividends began being made in June 27, 2008.  

Investment of Liquid Assets 

Our cash and cash equivalents invested with State financial institutions in short-term securities amounted to R$421.6 million as of December 31, 
2007.  

Government Guarantees of Financing 

In  some  situations,  the  Federal  Government,  the  State  or  government  agencies  guarantee  our  performance  under  debt-  and  project-related
agreements.  

On December 17, 1992, the State entered into a loan agreement with the World Bank in the amount of US$119.0 million. This loan was guaranteed
by  the  Federal  Government  and  its  proceeds  were  designated  to  finance  the  environmental  clean-up of  the  Guarapiranga  basin.  Pursuant  to  this 
agreement, we would receive a loan from the State to be used in the expansion of the wastewater collection network and sewage treatment facilities
in the Guarapiranga reservoir. As a result, on March 12, 1993, we entered into an agreement with the State pursuant to which the State transferred
to us US$37.0 million of this loan, which loan amount was increased to US$42.5 million pursuant to an amendment entered into between the State
and us in September of 1999. We pledged three of our properties as collateral for this financing in the amount of R$60.5 million, according to a
valuation  of  the  properties  carried  out  in  November  2005.  The  last  installment  of  this  financing  was  paid  in  April,  2007,  but  so  far  the  Federal
Government has not released the properties. 

The State has also guaranteed a portion of our repayment obligations under loan agreements that we entered into with the Federal Government in
1994 through its financial agent, Banco do Brasil S.A. which totaled R$1,880.8 million as of December 31, 2007. The Federal Government has
guaranteed,  and  the  State  has  provided  a  counter-guarantee,  in  respect  of  the  financial  agreement  we  entered  into  with  the  Inter-American 
Development Bank in 2000 for the total aggregate amount of US$200 million related to the financing of the Tietê River recovery project to reduce
pollution.  

On August  6,  2004,  we  entered into a credit  agreement with  the JBIC for  the  financing of  the  Environmental Recovery Program  for  the  Santos
Metropolitan  Region,  which  was  guaranteed  by  the  Federal  Government,  with  counter-guarantee  from  the  State  of  São  Paulo,  for  an  aggregate 
principal amount of R$337.7 million. We are currently also negotiating with BNDES and Caixa Econômica Federal for additional loans to finance
portions of our capital expenditure program.  

Use of State-Owned Reservoir Facilities 

We currently use the Guarapiranga and Billings reservoirs and a portion of some of the reservoirs of the Alto Tietê system, which are owned by
another  company  controlled  by  the  State.  We  do  not  pay  any  fees  with  respect  to  the  use  of  these  reservoirs.  We  are,  however,  responsible  for
maintaining them and funding their operating costs. The State incurs no operating costs on our behalf. If these facilities were not available for our
use, we would have to obtain water from more distant sources, which would be more costly.  

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The  arrangement  not  to  pay  any  fees  to  the State  for  the  use  of  certain  reservoirs  of  the  Alto  Tietê  system  is  addressed  by  a  number  of  formal
agreements first entered into on March 31, 1992 and on April 24, 1997 and later amended on March 16, 2000 and on November 21, 2001. As part
of these arrangements, we agreed to fund 100.0% of the estimated costs of the 1992 agreement equal to R$27.8 million and 75.0%  of the 1997
agreement  equal  to  R$63.4  million  which  was  already  disbursed,  and  the  Government  of  the  State,  through  the  State  Department  of  Water  and
Energy, agreed to fund approximately 25% of the estimated costs of the 1997 agreement equal to R$21.1 million, to construct ducts, tunnels and
other facilities to interconnect the Tietê River with the Biritiba and Jundiaí reservoirs and with other bodies of water in exchange for our use of the
reservoirs over a 30-year period. The amendments to the 1997 agreement increased our obligations under this agreement by R$5.9 million.  

We have the right to draw water from and release emissions into the reservoirs in the Alto Tietê system over a 30-year period which began in 1997. 

Our use of the Billings and Guarapiranga reservoirs is provided for through a grant issued by the State Department of Water and Energy. We have
the right to use these reservoirs as long as we remain responsible for maintaining them and funding their operating costs.  

Water Use Incentive Agreements 

We have entered into agreements with public entities, including State entities and municipalities, that manage approximately 7,000 properties under
which we provide these entities with a 25.0% tariff reduction for the water and sewage services we provide if such entities implement our program
for the rational use of water, which includes a reduction of at least 10.0% in water consumption. These agreements are valid for a period of 12
months with automatic renewal for equal periods. Pursuant to the terms of these agreements, if these entities fail to make any payment on a timely
basis to us, we have the right to cancel the agreement, thereby revoking the 25.0% tariff reduction.  

Transactions with SABESPREV Pension Fund 

SABESPREV  is  the  funded  pension  plan  that  we  established  to  provide  our  employees  with  retirement  and  pension  benefits.  The  assets  of
SABESPREV are independently held, but we nominate 50% of the directors of SABESPREV, including the Chairman of the Board, who has the
deciding vote in accordance with the applicable legislation. Both we and our employees make contributions to the pension plan. We contributed
R$11.3 million, R$11.4 million and R$11.9 million in 2005, 2006 and 2007. On May 29, 2001, a Federal law was enacted which, among other
things, limits the amount mixed capital companies, like us, may contribute to their pension plans. Specifically, the ordinary contributions made by
us to our pension plans may not exceed the contributions made by the beneficiaries of these plans. Studies have been undertaken in order to cure
the deficit with respect to the current plan and transform it into a defined contribution plan.  

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ITEM 8. FINANCIAL INFORMATION 

8.A. Consolidated statements and other financial information 

See “Item 3.A. Key Information—Selected Financial Data” and “Item 18. Financial Statements”. 

Legal Proceedings

In  the  ordinary  course  of  our  business,  we  are  a  party  to  judicial  and  administrative  proceedings  relating  to  civil,  environmental,  labor  and  tax
matters. As of December 31, 2007, we estimated that these legal proceedings totaled approximately R$2,888.4 million (excluding the amount of
R$29.8 million related to court deposits). This amount was based on probable and possible losses and on the value attributed to the lawsuit by the
plaintiffs in some cases and on the economic value of the lawsuits in others. Out of this total amount of contingencies, approximately R$1,235.3
million relate to tariff-related legal proceedings and consumers claims, approximately R$428.7 million relate to contractors claims, approximately
R$234.4  million  relate  to  tax  proceedings,  approximately  R$132.1  million  relate  to  labor  proceedings,  approximately  R$564.5  million  relate  to
civil public actions related to environmental matters and R$323.2 million relate to other civil matters. On the same date, the provisions for legal
contingencies totaled R$945.3 million (excluding the amount of R$29.8 million related to court deposits), of which approximately R$526.3 million 
relate to tariff-related legal proceedings and consumers claims, approximately R$174.6 million relate to contractors claims, approximately R$34.5
million  relate  to  tax  proceedings,  approximately  R$61.7  million  relate  to  labor  proceedings,  approximately  R$50.1  million  relate  to  civil  public
actions related to environmental matters and approximately R$127.9 million relate to other civil matters. 

The  difference  between  the  provisioned  amount  and  the  total  amount  of  the  contingencies  derives  from  the  methodology  for  establishing  our
provisions.  This  methodology  takes  into  account:  (1)  the  probability  of  loss  of  each  lawsuit,  based  on  the  alleged  facts,  the  claim  based  on  the
factual circumstances vis-à-vis the law, as well as prevailing precedents in similar cases; and (2) the calculation of the provisioned amounts, which
requires significant judgment and in certain circumstances, given the nature of the claim, we are unable to estimate with accuracy its exposure. In
these cases, we have taken into account the value attributed to the lawsuits by the plaintiff and legal opinions of counsel in charge of each lawsuit.
Once the methodology is applied, as a general rule, we make the provisions only for the lawsuits that are considered as probable loss. 

We  cannot  give  any  assurances  either  as  to  the  sufficiency  of  the  provisioned  amount  to  cover  the  contingencies  or  as  to  the  total  amount  of
potential  liabilities  that  we  may  incur  or  penalties  that  may  be  imposed.  We  may  not  obtain  a  favorable  outcome  in  the  administrative  or  court
proceedings to which we are a party. In addition, the total amount of the contingencies, based on the value attributed to the lawsuit by the plaintiff,
may  not  correspond  to  the  economic  value  of  the  lawsuits,  which  may  be  substantially  higher  than  the  total  amount  of  contingencies.  If  the
economic  outcome  of  these  lawsuits  is  higher  than  the  amount  attributed  to  the  lawsuit  by  the  plaintiff  or,  in  the  event  the  total  amount  of  our
provisions does not suffice to pay the contingencies due, we could incur greater costs than those that were originally foreseen. If these costs are 
significant, our results of operations and financial condition could be negatively affected.  

Civil Public Actions Related to Environmental Matters 

We are a party to civil public actions brought by municipalities that seek cessation of the collection of fees relating to sewage services, alleging that
we do not treat the sewage in these municipalities and that we failed to make certain investments in sewage treatment facilities as provided in the
relevant concession contracts. 

Additionally,  several  environmental  public  civil  actions  have  been  brought  against  us  by  the  São  Paulo  State  Public  Attorney’s  Office,  certain 
municipalities  and  certain  non-governmental  organizations  seeking  the  following:  (1)  to  forbid  the  dumping  of  raw  sewage  into  certain  local 
watercourses; (2) in some cases seeking remedies for environmental damages, which have not yet been specified and evaluated by technical experts
of the courts; and (3) aiming to require us to install and operate sewage treatment facilities in those locations. In each case, we are subject to daily
fines for noncompliance therewith. In our response to these lawsuits we emphasize that the installation and operation of sewage treatment facilities
in  those  locations  is  included  in  our  business  plan  and  that  the  immediate  cessation  of  the  release  of  raw  sewage  into  the  relevant  local  water
courses would hinder us from collecting sewage – a primary necessity – in those locations, causing even more damages against the environment 
and public health. There have already been some unfavorable rulings against us. However, we cannot foresee the final result of all the lawsuits and
we believe that an unfavorable result could have a substantially adverse effect. The public civil actions to which we are party include the following:

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(1)  The  Public  Prosecutor’s  Office  of  the  São  Bernardo  do  Campo  judicial  district  has  brought  a  public  civil  action  requesting remedies  due  to
environmental  damage  caused  by  the  release  of  sludge  from  our  water  treatment  facility  into  certain  receiving  waters;  seeking  the  immediate
cessation  of  this  activity  and  the  implementation  of  an  environmental  recovery  project.  The  lower  court  ruled  in  our  favor  and  there  was  a
subsequent appeal against this ruling. The appellate court ruled against us and ordered that the dumping of residue cease within a year from the
final ruling. The court also determined that environmental recovery must be carried out within two years of the date mentioned above, under the
penalty of a daily fine of R$10.0 thousand and conversion into compensation for environmental damages. Our legal counsel assessed the risk of
loss  as  probable  and  the  reserve  recognized,  as  of  December  31,  2007,  represents  the  adjusted  amount  of  R$163  thousand,  which  reflects  the
amount attributed to this lawsuit;  

(2) Public civil action filed by the Public Attorney’s Office against us and the Cotia Mayor’s Office seeking individual and joint adverse judgments 
of the defendants in relation to: (a) the permanent cessation of releasing untreated water effluents into the Cotia River or its tributaries, subject to a
daily fine in the case of noncompliance; (b) the treatment of sewage prior to releasing it into the Cotia River, under the penalty of a daily fine, in
the event of non-compliance; (c) the full restoration of soil, of surface and underground water bodies and of vegetation to their original condition,
under the penalty of a daily fine, in the event of non-compliance and (d) the payment of compensation for environmental damages caused to soil, to
water sources and to underground and surface water bodies that cannot be recovered. The appellate court rendered favorable decisions to us with
respect  to  items  (a),  (c)  and  (d)  mentioned  above.  According  to  evaluations  by  the  court’s  technical  expert,  compensation  for  environmental 
damages was R$5.8 million as of October 17, 2006. This amount is still under discussion and its approval is subject to a final decision by the court.
Our in-house counsel has considered it as a probable loss. In December 2007, we recorded the total provision in the amount of R$ 6.9 million.  

(3) On February 25, 2003, an environmental public civil action was filed by the Public Attorney’s Office against Sabesp with a view to sentencing 
us for failure to cease releasing raw sewage without proper treatment into the Boa Esperança stream and other water bodies in the municipality of
Lutécia, as well as the requirement of investing in a sewage and water treatment facility in the municipality of Lutécia and provide the payment to
remedy environmental damages. The expert’s report estimated damages to the amount of R$82.8 million, on July 13, 2004. This sum is definitive
as a ruling has not yet been rendered.  

(4) Public civil action filed by the São Paulo State Public Attorney’s Office against us seeking to sentence it for the non-cessation of releasing raw 
sewage without proper treatment into the Borá stream and other water bodies in the municipality of Borá, as well as our obligation to invest in a
water  and  sewage  treatment  facility  in  the  municipality,  carrying  out  the  works  necessary  for  the  proper  sewage  treatment.  The  expert  report
estimated environmental damages to the amount of R$41.0 million on November 29, 2005. However, this sum is not yet definitive as a ruling has
not been rendered yet. 

Lawsuits  3  and  4  mentioned  above  are  currently  under  negotiation  with  the  State  Public  Attorney’s  Office.  Provisions  have  been  made  for  the 
expected  amount  of  disbursement.  For  the  municipality  of  Lutécia  we  have  estimated  the  amount  of  R$3.9  million  for  the  following  works:
reforestation; the implementation of the Urban Drainage Director Plan, of the Lutécia Sewerage System and of the Recyclable Materials Collection
Center. The sum of R$744.4 thousand has been provisioned for the municipality of Borá for the following works: reforestation, Urban Drainage
Direction Plan and recovery and adaptation of the bathing area.  

(5) A public civil action filed by the Piracicaba Civil Entities Coordination Board against us and the National Water Agency seeking remedy for
damages  caused  by  the  use  of  the  Piracicaba,  Jundiaí  and  Capivari  rivers’  basin  to  supply  the  São  Paulo  Metropolitan  Region  through  the 
Cantareira Water System for nearly 30 years. The value attributed to the claim is R$11.4 billion on December 10, 2003 updated to R$ 15.1 billion
on  December  31,  2007.  This  lawsuit  is  in  its  initial  stage  and  is  pending  judgement  from  the  lower  court.  So  far  no  value  has  been  set  for  the
damages  alleged.  Our  in-house  counsel  has  evaluated  the  case  as  a  remote  loss  and  therefore,  no  provisions  have  been  made  referring  to  this
lawsuit.  

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(6) The São Paulo State Public Attorney’s Office has filed a public civil action against us, AES Eletropaulo, Daee, Cetesb and Fazenda do Estado
de São Paulo seeking a joint condemnation for alleged environmental damages caused by the reversal of the Pinheiros River into the Billings Dam.
A lower court decision was issued based on an expert’s report which estimated the damages at R$284.5 million, jointly sentencing the parties to
pay the amount restated between June 2000 and December 2007, in the amount of R$491.6 million. We, Daee, AES Eletropaulo, Cetesb and State
Treasury  Department  have  appealed  against  the  ruling  at  the  appellate  court  claiming  that  the  decision  has  no  factual  basis  and  are  awaiting  a
decision. There is no guarantee that the joint sentence will hold up in court. This lawsuit had previously been evaluated by our in-house counsel as 
a remote loss, but in view of the recent decision, it is now considered as a possible loss and therefore still no provisions have been made for this
lawsuit. 

We are currently involved in other environmental lawsuits against the release of sewage without treatment in the municipalities where we operate,
which have been evaluated as probable and possible losses by our counsels. The amounts provisioned not always represent the final amount to be
paid as compensation for the alleged damages in view of the current status of the lawsuits and since the Management is precluded from reasonably
estimating  the  amounts  of  future  disbursements.  As  of  December  31,2007,  the  total  amount  provisioned  was  R$50.1  million,  including  the
provisions described in items (1), (2), (3) and (4) above. 

Labor Proceedings

On  October  6,  1989,  SINTAEMA  (Union  of  Water,  Sewage,  and  Environmental  Workers  of  São  Paulo)  filed  a  lawsuit  against  us  seeking  the
payment of wage differences related to additional payment for health hazard allowances due to harmful working conditions in the period between
September 1987 and February 1991. On December 19, 1997, the Higher Labor Court rendered an unfavorable decision against us. We appealed
against the decision, which was upheld by the Higher Labor Court. SINTAEMA has started to execute the decision. The court’s technical expert 
report  was  presented  on  February  21,  2007,  with  the  a  restated  sum  of  R$28.3  million,  which  was  updated  on  December  31,  2007  to  R$30.7
million. Our expectations of a probable loss and a provision to that effect was made on December 31, 2007. As of March 2008 we are party to
approximately  2,939  labor  proceedings  and  one  public  civil  action  filed  by  some  of  our  current  and  former  employees.  These  lawsuits  seek  to
negotiate certain  benefits  granted  by  Law 4,819,  as  of  August  26,  1958.  Approximately 40  plaintiffs  are  claiming  the  same  benefits  in  the civil
court and in these cases, we allege that the São Paulo State government, and not us, should be responsible for the payments due to the plaintiffs. In
the public civil action filed against us and the State Treasury, an injunction was granted in the lower court requiring us to pay the benefits foreseen
in Law 4,819/58 to all the plaintiffs. A lower court decision was rendered on April 5, 2005, granting relief to such proceeding and confirming the
injunction granted to the effect that we are to continue to pay the benefits. We have appealed at the Regional Labor Court. There are currently other
pending individual lawsuits discussing the same claims, and up to the date of this report neither Sabesp nor the São Paulo State Government had
reached an agreement as to the indemnification amounts related to these proceedings.  

As  of  December  31,  2007,  the  total  amounts  involved  related  to  labor  proceedings  were  R$132.1  million  for  risks  considered  as  probable  and
possible  losses.  We  had  established  a  provision  totaling  R$61.7  million  with  respect  to  potential  damages  in  lawsuits  and  administrative
proceedings involving present and former employees, including the lawsuits described in the preceding paragraphs, based on calculations made by
our legal and human resources departments.  

Tax Proceedings 

In  July  1999,  we  took  legal  action  against  the  São  Paulo  city  government  against  the  levy  of  a  new  charge  for  the  use  of  public  areas  for  the
installation of water and sewage mains for the provision of public sanitation services. Based on our in-house counsel’s opinion, we believe that this 
charge is illegal as it was levied through a municipal decree and not through a municipal law. Therefore, we are challenging this charge and any
related charges. On May 11, 2000, the São Paulo State’s 12th Treasury District Court ruled in favor of this municipal charge and we subsequently
appealed the decision at the appellate court of the State of São Paulo. A recently approved law has legalized a charge on the use of public areas in
São Paulo city. In April 2004, our request for an injunction suspending the levy of this charge was granted by the aforementioned District Court
and subsequently upheld in the decision issued by the related courts. 

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The lawsuit is awaiting decision of appeals filed by us against the charge enacted by municipal decree. The São Paulo city government (PMSP)
subsequently enacted a law imposing a charge for the use of public areas. We filed a proceeding and the injunction was granted and subsequently
confirmed  by  means  of  decision  rendered.  The  PMSP  appealed  this  decision  at  the  State  of  São  Paulo  appellate  court  and  the  decision  is  still
pending. The proceeding is awaiting decision at the appellate court. We cannot estimate the potential increase to our expenses should we have to
pay this tax for the use of municipal soil or should any future levy of this tax date back to 1999. Until present, no provision for any type of potential
expense deriving from this municipal tax had been recorded. 

We filed an Injunction to challenge the revocation of ISS (Brazilian Service Tax) exemption in the City of São Paulo, which was established by a
Municipal  Law  enacted  in  2002.  In  April  2003,  a  preliminary  injunction  was  granted,  suspending  the  taxation.  In  May  2005,  the  State  Court
pronounced a judgment overruling the injunction. In July 2005, we filed an appeal aiming at the maintenance of the restraining order previously
granted. The final decision has not been issued yet, but the expectation for a favorable decision is deemed as possible. Concomitantly, the Treasury
Secretariat of the City of São Paulo drew up assessment notices on September 18, 2006, against which an administrative objection was timely filed
and thereafter dismissed in the lower court. The amount involved is estimated in R$70.0 million (R$120 million – amount restated as of December
31, 2007).  

In November 2004, we took legal action against the municipality of Bragança Paulista against the imposition of a new charge for the use of public
areas  for  the  installation  of  water  and  sewage  mains  for  the  provision  of  public  sanitation  services.  On  February  16,  2005,  we  were  granted  an
injunction suspending the imposition of this charge and preventing the municipality from collecting any current or future amounts due in respect of
this  charge  until  there  is  a  final  decision  on  the  merits.  The  municipality  appealed  the  decision,  but  the  appellate  court  upheld  the  injunction
granted. In June 2005, the preliminary injunction was considered to be valid. In July 2005, the municipality of Bragança filed an appeal which is
currently awaiting court decision. We have not made any provisions for this proceeding.

In  2006,  the  Federal  Revenue  Service  by  means  of  a  lawsuit  verified  the  compliance  of  our  fiscal  obligations  related  to  income  and  social
contribution taxes for 2001, calculating a fiscal credit to the Federal Revenue Service in the amount of R$277.0 million and updated to R$ 298.0
million on December 31, 2007. We filed a response in a timely manner contesting this amount and will appeal against the administrative decision
by means of an administrative proceeding and a lawsuit. Based on the opinion of our internal legal counsel, approximately 90% of this amount is
considered as a remote loss and the remaining 10% as a possible loss.  

We cannot predict the outcome of any of these lawsuits nor can we assure you that, in the event of an adverse decision, we will be able to pass on
to our customers any increase in our deductions from gross revenue, operating expenses or other expenses.  

We are party to several actions filed by the municipality of Ferraz de Vasconcelos seeking the payment of owed fines for alleged damages caused
by us during construction works in the municipality. Many of these actions have been refused by lower courts, but are still subject to appeal. After
revising these proceedings, we have estimated the sum of R$51 million, for which no provision has been made.  

Condemnation Proceedings 

We  are  party  to  a  significant  number  of  condemnation  proceedings  arising  from  the  partial  or  total  expropriation  or  use  of  private  property  for
water mains, sewer lines and facilities. Under Brazilian law, the State or the relevant municipality is entitled to condemn private property to the
extent required for the construction, development or improvement of parts of water and sewage systems operated by us. However, we are required
to  provide  compensation  to  affected  property  owners  based  upon  appraised  fair  market  values.  Although  we  generally  provide  compensation  to
property owners on the basis of negotiated settlements, we are a party to many lawsuits related to compensation awards. 

On  December  31,  2007,  the  future  disbursement  was  estimated  at  R$472.4  million  as  to  all  proceedings  of  expropriation  and  servitude.  These
payments are made over the year, according to each lawsuit decision and amicable settlement. After making said payment, we will own the real
properties which will be recorded as assets belonging to us after being expropriated. Accordingly, the disbursement will take place throughout the
years due to the aforementioned reasons. We have not provisioned any amounts with regards to these proceedings.  

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Concession-Related Legal Proceedings 

In  connection  with  discussions  we  had  with  the  municipality  of  Presidente  Prudente,  we  filed  a  claim  against  the  municipality  seeking  a  court
decision determining the continuation of the concession contract that we have entered into with that municipality until the indemnification payment
owed to us in connection with the return of water and sewage treatment facility of Presidente Prudente is made. The lower court issued a decision
in  our  favor  to  the  effect  that  we  still  continue  to  provide  services  in  the  municipality  until  the  indemnification  provided  for  in  the  concession
contract is paid to us. 

In December 1997, the municipality of Santos enacted a law expropriating our water and sewerage mains in Santos. We requested an injunction
against the expropriation which was denied by the lower court. This decision was subsequently reversed by the State of São Paulo appellate court,
which then issued an injunction suspending the law. On August 2, 2002, a decision was issued in our favor by the lower and appellate courts, but
this lawsuit is still subject to an extraordinary appeal. On March 25, 2004, the Public Attorney’s Office filed a civil action against the municipality 
of Itapira, its mayor, the Municipal House of Representatives and us, claiming that Municipal Law No. 3,593/04 is unconstitutional and seeking
termination of the concession contract we entered into with the municipality of Itapira. Although an injunction was granted, the Court of Justice of
the  State  of  São  Paulo  has  stayed  the  injunction.  On  March  23,  2005,  the  House  of  Representatives  of  Itapira  approved  a  decree  revoking  the
concession contract. In addition, Municipal Law No. 3,730/05 was enacted revoking an earlier law which authorized the municipality to enter into
the concession contract with us. The municipality of Itapira has further filed an action against us seeking to repossess the assets related to its water
and sewage services and has obtained an injunction which was later confirmed by a court decision. We appealed the decision, but have been unable
to revoke its effects until the final trial. In view of the compensation lawsuit filed by the Company against the aforementioned municipality, we
have waived the appeal in view of its harmful potential. As of the date of this annual report, a trial decision on this litigation was pending. We have
not made any provisions for this proceeding.

The municipality of Sandovalina has brought a legal action against us seeking to (1) obtain the termination of the concession entered into with us
and (2) obtain remedies for environmental damage and alleged losses caused to the municipality due to our failure to provide sewage treatment, as
well as other damage caused to public property. We are also seeking the payment of a contractual indemnification based on the early termination of
the contract. We are currently operating the water and sewage treatment facility of Sandovalina, and the lawsuit is still in the fact-finding phase. 
We have not made any provisions for this proceeding. The lawsuit is currently suspended while the parties discuss the procedures. No provisions
have been made for this proceeding. 

The  municipality  of  Tuiuti  has  brought  a  declaratory  action  seeking  to  recognize  the  inexistence  of  any  judicial  or  legal  grounds  to  justify  our
permanence as the provider of water and sewage collection services in the municipality of Tuiuti, and the subsequent taking over of these services
by the municipality. We have responded with a counterclaim against the municipality seeking a statement corroborating the existence of a legal
relationship between the two parties for subsequent compensation for investments made. The lawsuit is in the discovery phase and undergoing an
expert examination, and a hearing has been scheduled.  

The  municipality  of  Cajobi  has  filed  a  Repossession  Action.  This  seeks  the  retaking  of  water  and  sewage  collection  services  in  view  of  the
termination  of  the  concession  entered  into  with  us  on  November  13,  2006,  and  the  return  to  the  Granting  Authority  of  all  the  reversible  assets,
rights and privileges transferred. The action also seeks to require us to pay for losses and damages for amounts received as water and sewage tariffs
not  received  in  view  of  utilities  explored  since  the  enactment  of  Municipal  Decree  767,  of  November  13,  2006  (which  foresees  the  retaking  of
service granted), and for the use of assets related to the concession. The lawsuit is in the discovery phase. 

The municipality of Monte Alto has brought a cumulative Repossession Action for losses and damages stating the termination of the concession
contract entered into with us and seeking the retaking of water supply and sewage collection services following the termination of the concession
on October 23, 2006. The action also seeks a reversal to the Granting Authority of all the reversible assets and of the administration of the services
foreseen in the concession contract. The injunction was granted by the Fourth Public Law Chamber of the appellate court under an interlocutory
appeal filed by the municipality and executed on November 17, 2006. The lawsuit is in discovery phase, although the parties have been negotiating
a program contract.  

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The municipality of Araçoiaba da Serra has brought a Repossession Action seeking an authorization to enter into the installations included in the
concession  contract,  including  all  property  and  assets  connected  to  the  water  supply  and  sewage  treatment  services.  In  addition  to  this,  the
municipality seeks to take over the administration, operation and exploration of these services in view of the expiration of the concession contract,
scheduled for September 23, 2006. The municipality also claims the definitive restoring of the service’s ownership, including due reversal of all 
assets, rights and privileges previously transferred to us. The request for an injunction seeking to keep the municipality in charge of the services
was  granted  by  the  appellate  court  and  by  the  Superior  Courts.  We  have  subsequently  filed  a  writ  of  prevention  for  the  early  production  of
evidence. The lawsuit is in discovery phase.  

Tariff-Related Legal Proceedings and Consumers Claims 

Approximately 1,170 lawsuits were filed by commercial customers, which claim that their tariffs should be equal to the tariffs of another consumer
category, and therefore claim the refund of amounts collected by SABESP from such customers. We were granted both favorable and unfavorable
final  decisions  at  several  courts,  and  recognized  a  provision  when  the  likelihood  of  loss  is  considered  probable.  In  2007,  the  volume  of  lawsuit
decisions  allowed  our  management  to  evaluate  the  contingency  process  and  based  on  this  evaluation,  we  quantified  the  lawsuits  involving
customers, considering the most recent history of favorable and unfavorable court decisions to improve our estimate of liability. The result of this
process evidenced the need to increase the provision by approximately R$253 million, net of exclusions. 

The  Association  of  Distinguished  Bars  and  Restaurants  (Associação  de  Bares  e  Restaurantes  Diferenciados—ABREDI),  has  initiated  several 
lawsuits to challenge the 10.0% penalty fee we charge on late water and sewage payments. In several of these cases, lower courts have dismissed
the  lawsuits  based  on  the  lack  of  standing  by  the  plaintiff  to  initiate  such  a  lawsuit.  In  other  cases,  the  lawsuits  were  dismissed  because  a  civil
public action with respect to the  same matter was already being heard at the civil courts  of the  State  of São  Paulo. In  this  civil public action, a
decision was granted against us and we appealed against this decision and a final decision is still pending. Notwithstanding these legal proceedings,
we have reduced to 2.0% the penalty fee we charge on late bill payments by all of our customers. 

Contractors’ Claims 

Certain  contractors  have  filed  claims  against  us  alleging  underpayment  of  inflation  indexation  adjustments  and  monetary  losses  incurred  in
connection with introduction of the real. Based on advice from our legal counsel, as of December 31, 2007, we established a provision for these
claims in the amount of R$174.6 million to meet probable losses arising from unfavorable decisions in these actions.  

Other Legal Proceedings 

We are a party to several civil lawsuits related to indemnities for property damage, pain and suffering, and loss of profits allegedly caused to third
parties. As of December 31, 2007, we recognized provisions of R$127,890 (R$76,909 in 2006) for claims whose likelihood of loss is considered
probable. There was an increase both in lawsuits with probable and possible risk of loss, arising from the increase in lawsuits and the review of the
expected outcomes, comprising monetary adjustment, interest and fees for the year. The São Paulo State Public Attorney’s Office has filed a public 
civil action against Sabesp, seeking to ensure a water supply in the municipality of Guarujá within accepted levels of potability and in accordance
with current legislation. The lawsuit also seeks the company be sentenced to start building ETA (Water Treatment Station), restore fees charged to
consumers and pay compensation for moral and property damages caused by allegedly improper water consumption. An injunction was granted
and we appealed against such decision. However, the appellate court rejected the appeal. Sabesp has offered a defense and the lawsuit is currently
in discovery phase. We have not estimated the disbursement yet for there are no sufficient data to estimate the amounts. We evaluated this demand
as a possible loss.  

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On October 29, 2003, the Public Prosecution Office of the State of São Paulo on behalf of the people of the State of São Paulo, brought a civil
public action in a trial court of the State of São Paulo (12a. Vara da Fazenda Pública do Estado de São Paulo) alleging that a transfer to us of
ownership of the Alto Tietê System reservoirs from the State Department of Water and Energy would be illegal. In October 2004, the court ruled in
favor of the Public Prosecution Office of the State of São Paulo, with respect to the illegality of the transfer of the reservoirs. In response, we filed
an appeal which is pending final decision. 

In December 1996, we filed a claim to collect payment due from the municipality of Diadema. In December 2005, the Court of Justice of the State
of  São  Paulo  ruled  in  our  favor.  This  legal  proceeding  was  followed  by  several  other  related  legal  proceedings,  some  of  which  are  currently
pending.  A  civil  public  action  and  an  annulment  action  have  been  decided  in  our  favor.  On  October  11,  2006,  the  municipality  of  Diadema
appealed against the decision and on November 21, 2006 a decision was published allowing us to present our response to the appeal. We filed our
response on December 6, 2006.  

We entered into a settlement agreement with the municipality of Mauá at the time the concession was terminated in which Mauá agreed to make
the  payments  owed  to  us  in  connection  with  the  return  of  water  and  sewage  treatment  facilities.  However,  to  date  Mauá  has  not  yet  made  any
payments to us under the settlement agreement. We filed a claim against Mauá in December 1996 and a decision was issued in February 2005 by
the  lower  court  requiring  Mauá  to  pay  us  the  amount  of  R$153.2  million.  The  municipality  of  Mauá  and  SAMA  –  Saneamento  Básico  do
Município de Mauá appealed this decision. The appeal is pending final decision by the Court of Justice of the State of São Paulo. On July 4, 2006
the  judgment  was  converted  into  investigation  to  clarify  the  amount  related  to  the  indemnity.  On  February  20,  2008,  the  municipality  of  Mauá
provided its opinion about the investigation and the case is now with the judge. On April 7, 2008, Sabesp responded to the plaintiffs’ charges and 
now we are awaiting decision on the municipality and SAMA’s appeals. Based on our internal legal counsel opinion, our management still believes
that we have the legal right to receive the amount related to the indemnity and we continue to monitor the status of these legal proceedings. The
updated amount related to the indemnity estimated according to legal official adjustment índex is R$551 million. 

We are a party to a substantial number of other legal proceedings, in addition to the lawsuits and administrative proceedings discussed above, in the
normal course of our business. These legal proceedings include personal injury and property damage cases, environmental proceedings, challenges
to our ability to cease rendering water and sewage services upon default by our customers and a range of other matters. We have not established
provisions with respect to these other legal proceedings.  

Dividends and Dividend Policy 

Amounts Available for Distribution 

At  each  annual  shareholders’  meeting,  the  board  of  directors  is  required  to  recommend  how  net  profits  for  the  preceding  fiscal  year  are  to  be
allocated. For purposes of Brazilian Corporate Law, net profits are defined as net income after income taxes and social contribution taxes for such
fiscal year, net of any accumulated losses from prior fiscal years and any amounts allocated to employees’ and management’s participation in our
profits. In accordance with Brazilian Corporate Law, the amounts available for dividend distribution are the amounts equal to our net profits less
any amounts allocated from such net profits to:  

  the legal reserve; and 

  retained earnings for investment reserve.  

We  are  required  to  maintain  a  legal  reserve,  to  which  we  must  allocate  5%  of  net  profits  for  each  fiscal  year  until  the  amount  for  such  reserve
equals 20% of our paid-in capital. However, we are not required to make any allocations to our legal reserve in respect of any fiscal year in which
the aggregate amount of the legal reserve plus our other established capital reserves exceeds 30% of our capital. Net losses, if any, may be charged
against the legal reserve. On December 31, 2007, the balance of our legal reserve was R$306.7 million, which was equal to 9.0% of our paid-in 
capital.  

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Brazilian Corporate Law also provides for two discretionary allocations of net profits that are subject to approval by the shareholders at the annual
meeting. First, a percentage of net profits may be allocated to a contingency reserve for anticipated losses that are deemed probable in future years.
Any amount so allocated in a prior year must be either reversed in the fiscal year in which the loss was anticipated if such loss does not in fact
occur, or written off in the event that the anticipated loss occurs. Second, if the mandatorily distributable amount exceeds the sum of realized net
profits  in  a  given  year,  such  excess  may  be  allocated  to  an  unrealized  revenue  reserve.  Under  Brazilian  Corporate  Law,  realized  net  profits  is
defined as the amount of net profits that exceeds the net positive result of equity adjustments and profits or revenues from operations with financial
results after the end of the next succeeding fiscal year.  

Under Brazilian Corporate Law, any company may, as a term in its by-laws, create a discretionary reserve. By-laws which authorize the allocation 
of a percentage of a company’s net income to the discretionary reserve must also indicate the purpose, criteria for allocation and maximum amount
of the reserve. We may also allocate a portion of our net profits for discretionary appropriations for plan expansion and other capital investment
projects, the amount of which would be based on a capital budget previously presented by management and approved by shareholders. Under Law
No. 10,313 of October 3, 2001, capital budgets for more than one year must be revised at each annual shareholders’ meeting. After completion of
the  relevant  capital  projects,  we  may  retain  the  appropriation  until  the  shareholders  vote  to  transfer  all  or  a  portion  of  the  reserve  to  capital  or
retained earnings. At December 31, 2007, we had an investment reserve of R$3,609.6 million.  

The amounts available for distribution may be further increased by a reversion of the contingency reserve for anticipated losses constituted in prior
years but not realized. The amounts available for distribution are determined on the basis of financial statements prepared in accordance with the
Brazilian Corporate Law Method.  

The legal reserve is subject to approval by the shareholders voting at the annual meeting and may be transferred to capital but is not available for
the payment of dividends in subsequent years. Our calculation of net profits and allocations to reserves for any fiscal year are determined on the
basis of financial statements prepared in accordance with the Brazilian Corporate Law Method.  

Mandatory Distribution 

Brazilian Corporate Law generally requires that the by-laws of each Brazilian corporation specify a minimum percentage of the amounts available
for  distribution  by  such  corporation  for  each  fiscal  year  that  must  be  distributed  to  shareholders  as  dividends,  also  known  as  the  mandatory
distributable  amount.  Under  our  by-laws,  the  mandatory  distributable  amount  has  been  fixed  at  an  amount  equal  to  not  less  than  25%  of  the
amounts available for distribution, to the extent amounts are available for distribution.  

The mandatory distribution is based on a percentage of adjusted net income, not lower than 25%, rather than a fixed monetary amount per share.
Brazilian  Corporate  Law,  however,  permits  a  publicly  held  company,  such  as  Sabesp,  to  suspend  the  mandatory  distribution  of  dividends  if  the
board of directors and the conselho fiscal report to the shareholders’ meeting that the distribution would be inadvisable in view of the company’s 
financial condition. The suspension is subject to approval of holders of common shares. In this case, the board of directors must file a justification
for  such  suspension  with  the  Brazilian  securities  commission.  Profits  not  distributed  by  virtue  of  the  suspension  mentioned  above  shall  be
attributed  to  a  special  reserve  and,  if  not  absorbed  by  subsequent  losses,  must  be  paid  as  dividends  as  soon  as  the  financial  condition  of  such
company permits such payments.  

Payment of Dividends 

We are required by Brazilian Corporate Law and by our by-laws to hold an annual shareholders’ meeting by the fourth month after the end of each 
fiscal year at which, among other things, the shareholders have to decide on the payment of an annual dividend. The payment of annual dividends
is based on the financial statements prepared for the relevant fiscal year. Under Brazilian Corporate Law, dividends generally are required to be
paid within 60 days following the date the dividend was declared, unless a shareholders’ resolution sets forth another date of payment, which, in 
either  case,  must  occur  prior  to  the  end  of  the  fiscal  year  in  which  the  dividend  was  declared.  A  shareholder  has  a  three  year  period  from  the
dividend payment date to claim dividends (or interest payments as described under “— Record of Dividend Payments and Interest Attributed to 
Shareholders’  Equity”)  in  respect  of  its  shares,  after  which  the  amount  of  the  unclaimed  dividends  reverts  to  us.  The  depositary  will  set  the
currency exchange date to be used for payments to ADS holders as soon as practicable upon receipt of those payments from Sabesp.

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Our by-laws do not permit us to pay interim dividends out of preexisting and accumulated profits for the preceding fiscal year or semester.  

In general, shareholders who are not residents of Brazil must register with the Central Bank to have dividends, sales proceeds or other amounts
with respect to their shares eligible to be remitted outside of Brazil. The common shares underlying our ADSs are held in Brazil by Banco Itaú 
S.A., also known as the custodian, as agent for the depositary, which is the registered owner on the records of their registrar for our common shares.
Our current registrar is Banco Itaú S.A. The depositary electronically registers the common shares underlying the ADSs with the Central Bank and,
therefore, is able to have dividends, sales proceeds or other amounts with respect to these shares eligible to be remitted outside Brazil. See “Item
10.D. Additional Information—Exchange Controls.”

Payments of cash dividends and distributions, if any, will be made in Brazilian currency to the custodian on behalf of the depositary, which will
then convert such proceeds into U.S. dollars and will cause such U.S. dollars to be delivered to the depositary for distribution to holders of ADSs.
See “Item 10.D. Additional Information—Exchange Controls.” Under current Brazilian law, dividends paid to shareholders who are not Brazilian
residents,  including  holders  of  ADSs,  will  not  be  subject  to  Brazilian  withholding  income  tax,  except  for  dividends  declared  based  on  profits
generated prior to December 31, 1995. See “Item 10.E. Additional Information—Taxation.”

Record of Dividend Payments and Interest on Shareholders’ Equity 

Brazilian  corporations  are  permitted  to  distribute  dividends  in  the  form  of  a  tax-deductible  notional  interest  expense  on  shareholders’  equity  in 
accordance with Law No.  9,249, dated December 26, 1995, as amended. The rate  at  which  tax-deductible interest  may  be paid is  limited to the 
product of the average Taxa de Juros de Longo Prazo – TJLP (a long-term interest rate published by the Brazilian government) and shareholders’
equity during the relevant period and cannot exceed the greater of:  

  50% of net income (before taking into account such distribution and any deductions for income taxes and after taking into account any 

deductions for social contributions on net profits) for the period in respect of which the payment is made; and 

  50% of retained earnings. Any payment of interest on shareholders’ equity to holders of ADSs or common shares, whether or not they are 
Brazilian residents, is subject to Brazilian withholding income tax at the rate of 15% or 25% if the beneficiary is resident in a tax haven. 
See “Item 10.E. 
Additional Information—Taxation.” The amount paid to shareholders as interest on shareholders’ equity, net of any withholding tax, may 
be included as part of any mandatory distributable amount. Under Brazilian law, we are obligated to distribute to shareholders an amount 
sufficient to ensure that the net amount received by them, after payment by us of applicable Brazilian withholding taxes in respect of the 
distribution  of  interest  on  shareholders’  equity,  is  at  least  equal  to  the  mandatory  distributable  amount.  When  we  distribute  interest  on 
shareholders’ equity, and that distribution is not accounted for as part of the mandatory distribution, Brazilian withholding tax will apply. 
All payments to date were accounted for as part of the mandatory distribution.  

The following table sets forth the distributions out of net income that we made or will make to our shareholders in respect of our 2005, 2006 and
2007 net income. All these amounts distributed or to be distributed were or will be in the form of interest on shareholders’ equity.  

Distributions out of net income 

Year ended December 31,

Net
income(1)
R$

Payment
Dates

Payment
per 1,000
shares(6)
R$

Payment
per ADS
R$

Aggregate
amount
distributed(1)
R$

Pay-out
ratio(2)
%

        865.6 
778.9 
1,048.7 

2005 
2006 
2007 
__________________ 
(1) In millions of reais.
(2) Represents distributions divided by net income. 
(3) June 26, 2006. 
(4) June 29, 2007 
(5) June 27, 2008. 
(6) After the reverse split from 2007 the company started to calculate the dividends payments per shares. After June 4, 2007 our common shares
have been traded considering a reverse stock split, of 125 common shares into one common share. To convert from Reais per 1,000 common shares 
to Reais per share, for 2003, 2004, 2005 and 2006, the price per common share must be divided by 1,000 and multiplied by 125. 

          3.06 
2.38 
2.64 

        12.23 
9.51 
1.32 

        40.2 
34.8 
28.7 

 348.2 
270.8 
300.7 

(3)
(4)
(5)

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On April 28, June 23, October 20 and December 15, 2005, our board of directors approved the payment of dividends, in the form of interest on
shareholders’ equity, in the amount of R$38.2 million, R$66.8 million, R$85.2 million and R$158.1 million respectively, to be paid within 60 days
after our 2006 shareholders’ meeting. On April 20 and December 14, 2006, our board of directors approved the payment of dividends, in the form
of interest on shareholders’ equity, in the amount of R$129.6 million and R$141.2 million, respectively. The payments of interest on shareholders’
equity declared in 2006 began  being made on June 29, 2007. On October 18, 2007 and February 21, 2008, our board of directors  approved  the
payment  of dividends,  in the  form  of interest  on  shareholders’ equity,  in  the  amount of  R$268.8 million  and  R$ 31.9  million, respectively.  The
payments of these dividends began being made on June 27, 2008.  

Dividend Policy 

We intend to declare and pay dividends and/or interest on shareholders’ equity, as required by Brazilian Corporate Law and our by-laws. Our board
of directors may approve the distribution of interest on shareholders’ equity, calculated based on our semiannual or quarterly financial statements.
The  declaration  of  dividends  is  annual,  including  dividends  in  excess  of  the  mandatory  distribution,  and  requires  approval  by  the  vote  of  the
majority  of  the  holders  of  our  common  shares.  The  amount  of any distributions  will  depend  on  many  factors,  such  as  our results  of  operations,
financial condition, cash requirements, prospects and other factors deemed relevant by our board of directors and shareholders. Within the context
of our tax planning, we may in the future continue determining that it is to our benefit to distribute interest on shareholders’ equity.  

8.B. Significant Changes 

We are not aware of any significant changes bearing upon our financial condition since the date of the consolidated financial statements included in
this annual report.

ITEM 9. THE OFFER AND LISTING 

9.A. Offer and Listing Details 

Market Price of Common Shares 

Our common shares are traded on the São Paulo Stock Exchange under the symbol “SBSP3”. As of December 31, 2007, we had 2,659 registered
holders of common shares.  

On April 30, 2007, our shareholders approved a reverse stock split of 125 common shares into one common share. Under U.S. GAAP the SFAS N°
128 requires the retroactive restatement of earnings-per-share computations for stock dividends, stock splits, and reverse splits (see note 26 (r) to
our financial statements).  

The table below sets forth, for the periods indicated, the reported high and low closing sale prices in reais for common shares on the São Paulo 
Stock  Exchange.  The  table  also  sets  forth  prices  per  ADS  assuming  that  ADSs  had  been  outstanding  on  all  such  dates  and  translated  into  U.S.
dollars at the commercial market rate for the sale of U.S. dollars for each of the respective dates of such quotations. In addition, the table sets forth
the average daily trading volume for our common shares. 

104 

2003:
2004:
2005:

2006:
   First quarter 
   Second quarter 
   Third quarter 
   Fourth quarter 

2007:
   First quarter 

   Second quarter 
   Third quarter 
   Fourth quarter 

2008:
   January 
   February 
   March
   April 
   May 
   June 

Reais per 1,000

common shares

U.S. dollar equivalent

per ADS

Low

High

Low

High

74.60 
115.82 
121.41 

154.80 
174.00 
196.00 
250.01 

168.00 
182.00 
163.90 

191.00 
219.02 
259.98 
308.49 

5.21  
10.10  
11.60  

17.10  
19.04  
22.14  
29.24  

Table of Contents

Average daily 
trading 
volume (in lots 
of 1,000 
common shares)

14.29  
16.24  
15.39  

21.98  
26.53  
29.89  
35.94  

50,002 
51,359 
54,203 

54,056 
62,225 
54,545 
38,664 

258.99 

302.00 

30.04  

36.19  

49,874 

Reais per common shares
High 
Low 

U.S. dollar equivalent
per ADS

Low 

High 

33.75 
41.50 
39.31 

34.29 
36.71 
37.60 
38.65 
43.59 
39.50 

40.88 
49.10 
47.86 

43.00 
41.00 
40.60 
42.99 
46.50 
43.95 

32.96  
39.29  
43.38  

37.47  
42.37  
43.16  
44.09  
52.49  
49.53  

41.99  
53.10  
52. 86  

48.61  
49.03  
47.75  
51.52  
56.02  
54.05  

Average daily 
trading
volume

43,775 
384,527 
363,180 

324,629 
272,563 
283,075 
339,748 
304,315 
350,348 

Our common shares have been listed on the São Paulo Stock Exchange since June 4, 1997 and since April 24, 2002 our common shares have been
included  on  the  Novo  Mercado  segment  of  that  Exchange.  Prior  to  June  4,  1997,  our  common  shares  were  traded  on  Sociedade  Operadora  do 
Mercado de Acesso (SOMA), an over-the-counter market in Brazil.  

Market Price of ADSs 

Our American Depositary Shares, or ADSs, each of which represent 2 of our common shares, as of the date of the filing of this annual report, are
listed on the New York Stock Exchange under the symbol “SBS”. Prior to June 8, 2007, each ADS represented 250 of our common shares. Our
ADSs  began  trading  on  the  New  York  Stock  Exchange  on  May  10,  2002  in  connection  with  the  initial  offering  of  our  equity  securities  in  the
United States. We did not receive any of the proceeds from this sale.  

105 

 
 
 
 
 
 
 
 
 
 
 
The table below sets forth, for the periods indicated, the reported high and low closing prices for our ADSs on the New York Stock Exchange.  

Price in U.S. dollars per ADS

Table of Contents

2002:
   Second quarter (commencing May 10)
   Third quarter 
   Fourth quarter 
2003:
   First quarter 
   Second quarter 
   Third quarter 
   Fourth quarter 
2004:
   First quarter
   Second quarter 
   Third quarter
   Fourth quarter
2005:
   First quarter 
   Second quarter 
   Third quarter 
   Fourth quarter 
2006:
   First quarter 
   Second quarter 
   Third quarter 
   Fourth quarter 
2007:
   First quarter 
   Second quarter 
   Third quarter 
   Fourth quarter 

2008:
   January 
   February 
   March 
   April 
   May
   June

9.B. Plan of Distribution 

Not applicable. 

9.C. Markets 

Low

8.60 
4.75 
4.65 

5.29 
6.33 
8.20 
10.92 

11.21 
9.24 
10.55 
10.00 

11.73 
11.76 
13.60 
15.65 

17.21 
18.96 
22.04 
29.19 

29.15 
32.99 
39.84 
44.00 

40.92 
42.44 
44.09 
44.56 
52.69 
49.12 

High

11.80 
8.80 
6.45 

7.80 
10.05 
11.90 
14.47 

16.07 
13.45 
12.35 
14.97 

15.10 
15.99 
17.44 
17.32 

22.01 
26.63 
30.10 
35.35 

36.11 
46.26 
53.49 
53.57 

49.19 
48.95 
48.62 
50.91 
56.35 
53.60 

Average daily
trading volume

186,311 
42,784 
25,098 

17,014 
30,020 
83,056 
69,912 

116,077 
73,830 
45,982 
271,470 

235,987 
142,430 
260,919 
201,740 

419,783 
345,676 
265,682 
254,846 

343,761 
312,806 
384,570 
248,851 

341,353 
226,402 
311,841 
269,251 
313,860 
351,383 

Trading on the Brazilian Stock Exchanges 

In 2000, the Brazilian stock exchanges were reorganized through the execution of memoranda of understanding by the Brazilian stock exchanges.
Pursuant to the memoranda, all securities are now traded only on the São Paulo Stock Exchange, with the exception of electronically traded public
debt securities and privatization auctions, which are traded on the Rio de Janeiro Stock Exchange. 

If you were to trade in our common shares on the São Paulo Stock Exchange, your trade would settle in three business days after the trade date
without adjustment of the purchase price for inflation. The seller is ordinarily required to deliver the shares to the exchange on the second business
day following the trade date. Delivery of and payment for shares are made through the facilities of the clearinghouse, or Companhia Brasileira de 
Liquidação e Custódia.

The São Paulo Stock Exchange has an electronic trading system that conducts trading from 10:00 a.m. to 5:00 p.m.. The São Paulo Stock Exchange
also permits trading from 5:30 p.m. to 7:00 p.m., on a differentiated trading time called the “after market”. Trading on the aftermarket is subject to 
regulatory  limits  on  price  volatility  and  on  the  volume  of  shares  transacted  through  internet  brokers.  There  are  no  specialists  or  officially
recognized market makers for our shares.  

In order to better control volatility, the São Paulo Stock Exchange adopted a “circuit breaker” pursuant to which trading sessions may be suspended 
for a period of 30 minutes or one hour whenever its main index (the Index of the São Paulo Stock Exchange or “Bovespa”) fall below the limits of
10% or 15%, respectively, in relation to the index registered in the previous trading session.  

106 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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The São Paulo Stock Exchange is less liquid than the New York Stock Exchange or other major exchanges in the world. As of December 31, 2007,
the aggregate market capitalization of the 404 companies listed on the São Paulo Stock Exchange was equivalent to approximately US$1,398.72
billion and the 10 largest companies listed on the São Paulo Stock Exchange represented approximately 54.7% of the total market capitalization of
all listed companies. Although any of the outstanding shares of a listed company may trade on a Brazilian stock exchange, in most cases fewer than
half  of  the  listed  shares  are  actually  available  for  trading  by  the  public,  the  remainder  being  held  by  small  groups  of  controlling  persons,  by
governmental entities or by one principal shareholder. As of December 31, 2007, we accounted for approximately 0.4% of the market capitalization
of all listed companies on the São Paulo Stock Exchange.  

Trading on Brazilian stock exchanges by a holder not deemed to be domiciled in Brazil for Brazilian tax and regulatory purposes (a “non-Brazilian 
holder”) is subject to certain limitations under Brazilian foreign investment legislation. With limited exceptions, non-Brazilian holders may only 
trade on Brazilian stock exchanges in accordance with the requirements of Resolution No. 2,689, of January 26, 2000, of the National Monetary
Council. Resolution No. 2,689 requires that securities held by non-Brazilian holders be maintained in the custody of, or in deposit accounts with,
financial institutions duly authorized by the Central Bank and the Brazilian securities commission. In addition, Resolution No. 2,689 requires non-
Brazilian holders to restrict their securities trading to transactions on Brazilian stock exchanges or qualified over-the-counter markets. With limited
exceptions, non-Brazilian holders may not transfer the ownership of investments made under Resolution No. 2,689 to other non-Brazilian holders 
through  a  private  transaction.  See  “Item  10.E  Additional  Information—Taxation—Brazilian  Tax  Considerations—Taxation  of  Gains”  for  a 
description of certain tax benefits extended to non-Brazilian holders who qualify under Resolution No. 2,689.

Novo Mercado 

Since  April  24,  2002,  our  shares  have  been  listed  on  the  Novo  Mercado.  The  Novo  Mercado is  a  listing  segment  under  the  São  Paulo  Stock 
Exchange  designed  for  the  trading  of  shares  issued  by  companies  that  voluntarily  undertake  to  abide  by  some  additional  corporate  governance
practices and disclosure requirements in addition to those already imposed by Brazilian law. A company in the Novo Mercado must follow a series 
of corporate rules known as “good practices of corporate governance”. These rules generally increase shareholders’ rights and enhance the quality 
of information provided to shareholders. On April 18, 2002 and on June 19, 2006, our shareholders approved changes to our by-laws to comply 
with  the  Novo  Mercado  requirements.  In  addition,  the  Novo  Mercado provides  for  the  creation  of  a  Market  Arbitration  Chamber  for  conflicts
resolution between investors and companies listed in the Novo Mercado.

In addition to the obligations imposed by current Brazilian law, a company listed on the Novo Mercado is obligated to:  

  issue only voting shares; 

  hold public offerings of shares in a manner favoring diversification of the company’s shareholder base and broader retail access; 

  maintain a minimum free float equal to 25% of the outstanding share capital of the company; 

  grant tag along rights for all shareholders in connection with a transfer of control of the company; 

  limit the term of all members of the board of directors to two years; 

  at least 20% of the members of the board of directors must be independent, as defined under the Novo Mercado regulation; 

  prepare  annual  and  quarterly  financial  statements,  including  cash  flow  statements,  in  accordance  with  U.S.  GAAP  or  International

Accounting Standards; 

  disclose information on a quarterly basis, including insider share ownership and amount of free float of shares; 

  if  it  elects  to  delist  from  the  Novo  Mercado,  hold  a  tender  offer  by  the  company’s  controlling  shareholder  (the  minimum  price  of  the 

shares to be offered will be determined by an appraisal process); and 

  make greater disclosure of related party transactions.  

107 

Table of Contents

Regulation of Brazilian Securities Markets 

The Brazilian securities markets are principally governed by Law No. 6,385, of December 7, 1976, and Brazilian Corporate Law, each as amended
and supplemented, and by regulations issued by the Brazilian securities commission, which has regulatory authority over the stock exchanges and
securities  markets  generally,  the  National  Monetary  Council,  and  by  the  Central  Bank,  which  has  licensing  authority  over  brokerage  firms  and
regulates  foreign  investment  and  foreign  exchange  transactions.  These  laws  and  regulations,  among  others,  provide  for  disclosure  requirements
applicable to issuers of traded securities, protection of minority shareholders and criminal penalties for insider trading and price manipulation. They
also provide for licensing and oversight of brokerage firms and governance of the Brazilian stock exchanges. Nevertheless, the Brazilian securities
markets are not as highly regulated and supervised as the U.S. securities markets.  

Under Brazilian Corporate Law, a company is either public (companhia aberta), such as we are, or closely held (companhia fechada). All public 
companies, including us, are registered with the Brazilian securities commission and are subject to reporting requirements. A company registered
with  the  Brazilian  securities  commission  may  have  its  securities  traded  on  the  Brazilian  stock  exchanges  or  in  the  Brazilian  over-the-counter
market. Our common shares are listed and traded on the São Paulo Stock Exchange and may be traded privately subject to some limitations.  

To be listed on a Brazilian stock exchange a company must apply for registration with the Brazilian securities commission and the stock exchange
where the head office of the company is located.  

We have the option to ask that trading in our securities on the São Paulo Stock Exchange be suspended in anticipation of a material announcement.
Trading may also be suspended on the initiative of the São Paulo Stock Exchange or the Brazilian securities commission, among other reasons,
based on or due to a belief that a company has provided inadequate information regarding a material event or has provided inadequate responses to
the inquiries by the Brazilian securities commission or the São Paulo Stock Exchange.  

The  Brazilian  over-the-counter  market  consists of  direct trades  between  individuals in which  a financial  institution registered  with  the  Brazilian
securities commission serves as intermediary. No special application, other than registration with the Brazilian securities commission, is necessary
for  securities  of  a  public company  to  be  traded  in  this  market.  The  Brazilian  securities  commission  requires  that  it  be given  notice  of  all  trades
carried out in the Brazilian over-the-counter market by the respective intermediaries.  

Trading on the São Paulo Stock Exchange by non-residents of Brazil is subject to limitations under Brazilian foreign investment and tax legislation.
The Brazilian custodian for the common shares underlying the ADSs must, on behalf of the depositary for our ADSs, obtain registration from the
Central Bank to remit U.S. dollars abroad for payments of dividends, any other cash distributions, or upon the disposition of the shares and sales
proceeds  thereto. In the  event  that a  holder of ADSs exchanges  ADSs for  common shares, the  holder will  be entitled to continue to rely on  the
custodian’s registration for five business days after the exchange. Thereafter, the holder may not be able to obtain and remit U.S. dollars abroad
upon the disposition of our common shares, or distributions relating to our common shares, unless the holder obtains a new registration. See “Item
10.D Additional Information—Exchange Controls.”

9.D. Selling Shareholders 

Not applicable.  

9.E. Dilution 

Not applicable. 

9.F. Expenses of the Issue 

Not applicable. 

108 

ITEM 10. ADDITIONAL INFORMATION 

Table of Contents

10.A. Share Capital 

Not applicable. 

10.B. Memorandum and Articles of Association 

The following is a summary of the material terms of our common shares, including related provisions of our by-laws and Brazilian Corporate Law. 
This description is qualified by reference to our by-laws and to Brazilian law.  

Corporate Purposes 

Companhia de Saneamento Básico do Estado de São Paulo-SABESP is a sociedade de economia mista, a mixed capital company, incorporated on 
November 1, 1973, with limited liability of unlimited duration, duly organized and operating under Brazilian Corporate Law. As set forth in Article
2 of our by-laws, our corporate purpose is to plan, provide and operate basic sanitation services throughout the territory of the State of São Paulo,
and sell these services and the related benefits that directly or indirectly arise in connection with these services. Under Article 63 of Supplementary
Law 1,025 of December 7, 2007, we were permitted to expand our operational scope geographically and to add new types of services related to
environmental sanitation and energy. 

Description of Common Shares 

General 

Each common share entitles the holder thereof to one vote at our annual and special shareholders’ meetings. Brazilian Corporate Law requires that 
all  our  shareholders’  meetings  be  called  by  publication  of  a  notice  in  the  Diário  Oficial  do  Estado  de  São  Paulo,  the  official  government 
publication of the State of São Paulo, and in a newspaper of general circulation in our principal place of business, currently the City of São Paulo,
at least fifteen days prior to the meeting. In addition, the Brazilian Securities Commission may also require the first call for a shareholders’ meeting 
to  be  up  to  30  days  before  such  shareholders’  meeting.  The  quorum  to  hold  shareholders’  meetings  on  first  call  is  generally  25%  of  the  shares 
entitled to vote and on second call the meetings can be held with the presence of any number of the shares entitled to vote.  

Under  Brazilian  Corporate  Law,  our  common  shares  are  entitled  to  dividends  or  other  distributions  made  in  respect  of  our  common  shares  in
proportion to their share of the amount available for the dividend or distribution. See “Item 8.A Financial Information—Consolidated Statements 
and  Other  Financial  Information—Dividends  and  Dividend  Policy”  for  a  more  complete  description  of  payment  of  dividends  and  other
distributions on our common shares. In addition, upon any liquidation of Sabesp, our common shares are entitled to return of capital in proportion
to their share of our net worth.  

In principle, a change in shareholder rights of shareholders, such as the reduction of the compulsory minimum dividend, is subject to a favorable
vote of the shareholders representing at least one half of our voting shares. Under some circumstances that may result in a change in the rights of
shareholders, such as the creation of preferred shares, Brazilian Corporate Law requires the approval of a majority of the shareholders who would
be  adversely  affected  by  the  change  present  in  a  special  meeting  called  for  such  reason.  Brazilian  Corporate  Law  specifies  other  circumstances
where the dissenting shareholder may also have appraisal rights.  

According  to  Brazilian  Corporate  Law,  neither  a  company’s  by-laws  nor  actions  taken  at  a  general  meeting  of  shareholders  may  deprive  a 
shareholder of some specific rights, such as:  

  the right to participate in the distribution of profits;  

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  the right to participate equally and ratably in any remaining residual assets in the event of liquidation of the company; 

  the right to supervise the management of the corporate business as specified in Brazilian Corporate Law; 

  the right to preemptive rights in the event of a subscription of shares, debentures convertible into shares or subscription bonuses (except in 

some specific circumstances under Brazilian law); and 

  the right to withdraw from the company in the cases specified in Brazilian Corporate Law.  

Pursuant to Brazilian Corporate Law and our by-laws, each of our common shares carries the right to one vote at a general meeting of shareholders.
We may not restrain or deny that right without the consent of the holders of a majority of the shares affected.  

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Neither Brazilian Corporate Law nor our by-laws expressly addresses:  

  staggered terms for directors; 

  cumulative voting, except as described below; or 

  measures that could prevent a takeover attempt.  

However, under the laws of the State of São Paulo and our by-laws, the State is required to own at least a majority of our outstanding common
shares.  

According  to  Brazilian  Corporate  Law,  shareholders  representing  at  least  one-tenth  of  the  voting  capital  may  request  that  a  multiple  voting 
procedure be adopted to entitle each share to as many votes as there are board members and to give each shareholder the right to vote cumulatively
for only one candidate or to distribute their votes among several candidates. Pursuant to Brazilian Corporate Law, shareholder action must be taken
at a shareholders meeting duly called and not by written consent.  

Preemptive Rights 

Each  of  our  shareholders  has  a  general  preemptive  right  to  subscribe  for  shares  or  securities  convertible  into  shares  in  any  capital  increase,  in
proportion to its shareholding, except in the event of the grant and exercise of any option to acquire shares of our share capital. A period of at least
30 days following the publication of notice of the issuance of shares or securities convertible into shares is allowed for exercise of the right, and the
right is negotiable. Under Brazilian Corporate Law, we may amend our by-laws to eliminate preemptive rights or to reduce the exercise period in 
connection with a public offering of shares or an exchange offer made to acquire another company. Currently our by-laws provide our shareholders 
with preemptive rights with respect to any offering.  

In  the  event  of  a  capital  increase  by  means  of  the  issuance  of  new  shares,  holders  of  ADSs,  or  of  common  shares,  would,  except  under
circumstances described above, have preemptive rights to subscribe for any class of our newly issued shares. However, an ADS holder may not be
able to exercise the preemptive rights relating to the common shares underlying his or her ADSs unless a registration statement under the Securities
Act is effective with respect to those rights or an exemption from the registration requirements of the Securities Act is available. See “Item 3.D. 
Key Information—Risk Factors—Risks Relating to Our Common Shares and ADSs—A holder might be unable to exercise preemptive rights and
tag-along rights with respect to the common shares.”  

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Redemption and Rights of Withdrawal

Brazilian  Corporate  Law  provides  that,  under  limited  circumstances,  a  shareholder  has  the  right  to  withdraw  his  or  her  equity  interest  from  the
company and to receive payment for the portion of shareholder’s equity attributable to his or her equity interest. This right of withdrawal may be
exercised by dissenting shareholders of Sabesp in the event that at least half of all voting shares outstanding authorize us:  

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  to create preferred shares; 

  to reduce the mandatory distribution of dividends; 

  to merge into another company or to consolidate with another company, subject to the conditions set forth in Brazilian Corporate Law; 

  to participate in a centralized group of companies as defined under Brazilian Corporate Law and subject to the conditions set forth therein;

  to change our corporate purpose; 

  to split up, subject to the conditions set forth in Brazilian Corporate Law; 

  to transform into another type of company; 

  to transfer all of our shares to another company or to receive shares of another company in order to make the company whose shares are 

transferred a wholly owned subsidiary of such company, known as incorporação de ações; or 

  to acquire control of another company at a price which exceeds the limits set forth in Brazilian Corporate Law.  

The right of withdrawal lapses 30 days after publication of the minutes of the shareholders’ meeting that approved the corporate actions described 
above. We would be entitled to reconsider any action giving rise to withdrawal rights within 10 days following the expiration of such rights if the
withdrawal of shares of dissenting shareholders would jeopardize our financial stability. Brazilian Corporate Law allows companies to redeem their
shares at their economic value, subject to the provisions of their by-laws and certain other requirements. Our by-laws currently do not provide that 
our capital stock will be redeemable at its economic value and, consequently, any redemption pursuant to Brazilian Corporate Law would be made
based  on  the  book  value  per  share,  determined on  the  basis  of  the  last balance sheet approved  by the shareholders.  However, if  a  shareholders’
meeting  giving  rise  to  redemption  rights  occurred  more  than  60  days  after  the  date  of  the  last  approved  balance  sheet,  a  shareholder  would  be
entitled to demand that his or her shares be valued on the basis of a new balance sheet dated within 60 days of such shareholders’ meeting.  

In addition, the rights of withdrawal in the third, fourth and eighth bullet points above may not be exercised by holders of shares if such shares (1)
are  liquid,  defined  as  being  part  of  the  São  Paulo  Stock  Exchange  Index  or  other  stock  exchange  index  (as  defined  by  the  Brazilian  securities
commission), and (2) are widely held, such that the controlling shareholder or companies it controls have less than 50% of our shares. Our common
shares are included on the São Paulo Stock Exchange Index.  

This right of withdrawal may also be exercised in the event that the entity resulting from a merger, incorporação de ações, as described above, 
consolidation or spin-off of a listed company fails to become a listed company within 120 days of the shareholders’ meeting at which such decision 
was taken.  

Reserves

General

The Brazilian Corporate Law provides that all discretionary allocations of “adjusted income” are subject to shareholder approval and may be added
to capital or distributed as dividends in subsequent years. In the case of “Tax Incentive Reserve” and the “Legal Reserve”, they are also subject to 
shareholder approval; however, the use of their respective balances is restricted to being added to capital or the absorption of losses. They cannot
be used as a source for income distribution to shareholders. 

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Capital Reserve 

Our  Capital  Reserve  is  comprised  of  tax  incentives  and  donations  from  government  agencies  and  private  entities,  which  amounted  to  R$17.6
million during 2007 (R$27.9 million in 2006). At December 31, 2007, we had a Capital Reserve of R$124.3 million.  

Tax Incentive Reserve 

Our Tax Incentive Reserve results from an option to invest in the capital stock of companies undertaking specified government-approved projects. 
In lieu  of paying part of the income tax  due, the amount  is credited to income  tax and subsequently appropriated from  retained  earnings to this
reserve. 

Donations Reserve 

Our  Donations  Reserve  reflects  the  value  of  assets  received  from  government  entities,  principally  enabling  the  us  to  provide  service  access  to
properties. No shares are issued in exchange nor other remuneration provided in connection with assets received. These donations are recorded as a
direct benefit to shareholders’ equity. 

Investment Reserve

Our Investment Reserve is comprised specifically of internal funds for expansion of water supply and sewage service systems.  

At our Shareholders’ Meeting held on April 29, 2008, Management proposed the transfer of the retained earnings balance of R$783.2 million to the
Investment Reserve account, to cover the needs of investments with own funds, as planned in the Capital Budget. At December 31, 2007, we had
an Investment Reserve of R$3,609.6 million.  

Legal Reserve

Under Brazilian Corporate Law, we are required to record a Legal Reserve to which we must allocate 5% of the adjusted net income each year until
the amount of the reserve equals 20% of paid-in capital. Any accumulated deficit may be charged against the Legal Reserve. On December 31,
2007, the balance of our Legal Reserve.  

Arbitration

In  connection  with  our  listing  with  the  Novo  Mercado,  we,  our  controlling  shareholders,  directors  and  officers  have  undertaken  to  refer  to
arbitration any and all disputes or controversies arising out of the Novo Mercado rules or any other corporate matters. See “Item 9.C.—Markets.”
Under our by-laws, any disputes among us, our shareholders and our management with respect to the application of Novo Mercado rules, Brazilian 
Corporate Law, the application of the rules and regulations regarding Brazilian capital markets, will be resolved by arbitration conducted pursuant
to the Bovespa Arbitration Rules in the Bovespa Arbitration Chamber. Any disputes among shareholders, including holders of ADSs, and disputes
between us and shareholders, including holders of ADSs, will also be submitted to arbitration.  

Options 

There are currently no outstanding options to purchase any of our common shares.  

Directors’ Powers 

Although  our  by-laws  contain  no  specific  provisions  regarding  a  director  or  executive  officer’s  power  to  vote  on  a  proposal,  arrangement  or
contract in which that director has a material interest, under Brazilian Corporate Law, a director or an executive officer is prohibited from voting in
any  meeting  or  with  respect  to  any  transaction  in  which  that  director  or  executive  officer  has  a  conflict  of  interest  with  the  company  and  must
disclose  the  nature  and  extent  of  the  conflicting  interest  for  transcription  in  the  minutes  of  the  meeting.  In  any  case,  a  director  or  an  executive
officer  may  not  transact  any  business  with  the  company,  including  any  borrowing,  except  on  reasonable  or  fair  terms  and  conditions  that  are
identical to the terms and conditions prevailing in the market or offered by third parties.  

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Under our by-laws our  shareholders are  responsible  for  establishing the compensation we pay to  the members of  our  board  of directors and the
executive officers.  

Pursuant  to  Brazilian  Corporate  Law,  each  member  of  our  board  of  directors  must  be  a  shareholder  of  Sabesp  and,  pursuant  to  our  by-laws,  a
resident of Brazil. Our by-laws do not establish any mandatory retirement age limits.  

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See also “Item 6.A. Directors and Senior Management.”

Sabesp´s Corporate Governance Practice and NYSE Guidelines 

     On  November  4,  2003,  the  Securities  and  Exchange  Commission  (“SEC”)  approved  the  final  corporate  governance  rules  of  the  NYSE. 
According  to  such  rules,  foreign  private  issuers  are  subject  to  a  more  limited  set  of  requirements  regarding  corporate  governance  than  those
imposed on U.S. domestic issuers. As a foreign private issuer, we must comply with three rules imposed by the NYSE: 

(1) the requirements set forth by the SEC concerning audit committees; 

(2) our CEO must promptly notify the SEC in writing after any executive officer becomes aware of any material non-compliance with any of the 
applicable NYSE corporate governance rules; and 

(3) we shall provide a brief description disclosing any significant ways in which our corporate governance practices differ from those followed by
U.S. companies under NYSE listing standards. 

Introduction  

As a Brazilian company listed on the São Paulo Stock Exchange, or “Bovespa,” we are obliged to comply with the corporate governance standards 
set forth in Corporate Law No. 6,404 of December 15, 1976, as amended (the “Brazilian Corporate Law”) and the rules of the Comissão de Valores 
Mobiliários (the Brazilian securities and exchange commission, or “CVM”). In addition to these rules, because we are listed on the Novo Mercado 
listing  segment  of  Bovespa  (the  “New  Market”),  we  are  also  required  to  comply  with  its  regulations  (the  “New  Market  Regulations”),  which 
includes more stringent standards regarding corporate governance practices than those required by Brazilian Corporate Law.  

The New Market Regulations apply to board practices, transparency and minority shareholders protection, among others. For example, we (i) can
issue only ordinary voting shares, (ii) must maintain a minimum free float equal to 25% of our outstanding share capital; (iii) must make available
our  annual  financial  statements  in  the  English  language  and  such  financial  statements  must  be  based  upon  internationally  accepted  accounting
principles  or  upon  the  Brazilian  Corporate  Law  method  with  a  reconciliation  to  internationally  accepted  account  principles;  (iv)  the  term  of  all
members of the board of directors must be limited to two years; (v) our Board of Directors must be composed of, at least, five directors, elected by
the general meeting, out of which, in compliance with the specific rules concerning this matter, at least 20% must be Independent Members, as
defined  in  the  New  Market  Listing  Regulations;  and  (vi)  must  disclose  additional  and  detailed  information  on  our  quarterly  reports,  including
insider share ownership and the amount of free float of shares.  

The chart below provides a brief description of the significant differences between our corporate governance practices and those followed by U.S.
companies under NYSE listing standards.  

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303A.00 – Corporate Governance Standards 
for 
domestic issuers

303A.01 – Listed companies must have a 
majority of independent directors.

303A.03 – Executive Sessions 

303A.04 –
 Nominating/Corporate Governance Committee
303A.05 – Compensation Committee

303A.06 – Audit Committee 

303A.07 – Audit Committee Additional 
Requirements 

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Sabesp Corporate Governance practices 

Our Board of Directors must have a minimum of five members and 20% of the board (even if the
board consists  of  greater  than  five  members)  must  meet  the definition  of  “Independent  Board 
Member”.  Currently, three  of  our  ten  directors  are  independent,  pursuant  to the  New  Market 
Listing  Regulations.  Additionally,  both the  Brazilian  Corporate  Law  and  CVM  have
established rules  in  relation  to  certain  qualification  requirements and  restrictions,  investiture,
compensation,  duties  and responsibilities  of  the  companies'  executives  and directors.  We  believe
these rules provide adequate assurances that our directors are independent; however, they do not
require that we have a majority of independent directors as is required by the NYSE. 
According to Brazilian Corporate Law, up to one-third of the members of the Board of Directors 
are permitted to consist of directors who do not meet the NYSE's definition of “non-management”
directors.  Additionally, non-management  directors  are  not  required  to  meet regularly  without 
management.  Nevertheless,  currently, our  Board  of  Directors  consists  entirely  of  members who
meet the  NYSE's  definition of  “non-management” directors.  The directors do  not  have  regularly 
scheduled executive sessions without the presence of the CEO.  
We are  not required under  applicable  Brazilian Corporate Law to have, and  currently we  do not
have, a nominating or corporate governance committee. 
Currently  we  do  not  have  a  compensation  committee. Pursuant  to  our  by-laws  our  directors  are 
elected by our shareholders at a general shareholders meeting. Compensation for our directors and
executive officers is based on criteria established by our controlling shareholder and is subject to
approval by our shareholders at the annual shareholders meeting.  
Our Audit Committee is composed of three Independent board members, as defined in the concept
of “Independent  Board  Members”  of  Rule  10A-3  of  the Securities  and  Exchange  Commission-
SEC, and one of them is an expert in finances and, also, Coordinator of the Committee. 

The  Committee  has  a  formal  written  charter  which provides  for  procedures  required  for  its
operation, comprising  its  purpose,  basic  principles,  authority,  organization,  meetings,  functions,
responsibilities, compensation  and  budget.  The  Committee  main  focus  is the  follow-up  of  the 
presentation  process  of  financial reports  to  ensure  quality,  transparency  and  integrity  of the
financial information published, the efficiency of internal controls, of the risk management system
and  of the  Internal  Audit  function,  the  Independent  Audit work,  monitoring  of  the  compliance
with the laws and regulations affecting the presentation of the financial reports and the monitoring
of the compliance with the Code of Ethics and Conduct, concerning issues related to accounting,
internal controls and audit. 

Brazilian  Corporate  Law  also  requires  us  to  have  a fiscal  board  which  is  composed  of  three  to
five members which are elected at the general shareholders meeting. The fiscal board is intended
to operate independently from our management and our external auditors. Its main function is to
examine  the  financial statements  of  each  fiscal  year  and  provide  a  formal report  to  our
shareholders.  Our  fiscal  council  consists  of five  members  and  five  alternates  and  the  members
meet once a month. 

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303A.08 – Shareholder Approval of Equity 
Compensation Plans 

303A.09 – Corporate Governance 
Guidelines 

303A.10 – Code of Business Conduct and 
Ethics 

303A.12(b) and (c) – Certification 
Requirements 

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Currently we do not have any equity compensation plans. If such a plan were to be implemented, there
is  no requirement  under  Brazilian  Corporate  Law  for  the approval  of  the  plan  by  our  shareholders.
However, if the issuance of new shares in connection with any equity compensation plan exceeded the
authorized capital under our by-laws, the increase in capital would require a shareholder vote. 
We are in compliance with the adoption of corporate governance guidelines required under the New
Market Regulations. Additionally, under the CVM's guidelines, we have created, adopted and observe
(i)  the  Policy  of Publicizing  Acts  or  Relevant  Facts  and  the  Preservation of  Confidentiality  which
requires  us  to  publicly  disclose all  relevant  information  and  (ii)  the  Securities Negotiation  Policy
which  requires  management  to inform  the  CVM  and  Bovespa  of  any  purchases  or  sales of  Sabesp's
securities.  We  believe  the  corporate governance  guidelines  applicable  to  us  under  the  New Market
Regulations, as well as the CVM, do not conflict with the guidelines established by the NYSE. 

Our corporate governance guidelines and practices are available in our website at www.sabesp.com.br
and in our annual management report. 
We  have  decided  to  adopt  and  disclose  a  code  of  ethics and  conduct  applicable  to  all  our  officers,
directors  and employees.  The  adoption  and  disclosure  of  a  formal code  is  in  addition  to  the  ethical
obligations of the Company under the Brazilian Corporate Law. We believe our formal code addresses
the matters required to be addressed by the applicable NYSE and SEC rules.  
Our  CEO  shall  promptly  notify  the  NYSE  in  writing after  any  executive  officer  become  aware  of
any material non-compliance with any applicable provision of the NYSE corporate governance rules. 
Moreover,  we must  submit  an  executed  Witten  Affirmation  annually, and  an  interim  Written
Affirmation each time a change occurs to the board or to the Audit Committee.  

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10.C. Material Contracts 

For a description of the material contracts entered into by Sabesp and the State, see “Item 7. Major Shareholders and Related Party Transactions—
Related Party Transactions—Transactions with the State of São Paulo—Agreements with the State.”

10.D. Exchange Controls

There are no restrictions on ownership of common shares by individuals or legal entities domiciled outside Brazil. However, the right to convert
dividend  payments  and  proceeds  from  the  sale  of  common  shares  into  foreign  currency  and  to  remit  such  amounts  outside  Brazil  is  subject  to
restrictions under foreign investment legislation which generally requires, among other things, the registration of the relevant investment with the
Central Bank.  

Pursuant to Brazilian law, investors may invest in common shares under Resolution 2,689, of January 26, 2000, of the National Monetary Council. 

Resolution No. 2,689 allows non-Brazilian investors to invest in almost all financial assets and to engage in almost all transactions available in the
Brazilian financial and capital markets, provided that some requirements are fulfilled. In accordance with Resolution No. 2,689, the definition of
non-Brazilian investor includes individuals, legal entities, mutual funds and other collective investment entities, domiciled or headquartered outside
of Brazil.  

Pursuant to Resolution 2,689, a foreign investor must: (1) appoint at least one representative in Brazil with powers to perform actions relating to
the  foreign  investment;  (2)  complete  the  appropriate  foreign  investor  registration  form;  (3)  register  as  a  foreign  investor  with  the  Brazilian
securities commission; and (4) register the foreign investment with the Central Bank.  

Securities and other financial assets held by foreign investors pursuant to Resolution 2,689 must be registered or maintained in deposit accounts or
under the custody of an entity duly licensed by the Central Bank or the Brazilian securities commission. In addition, securities trading is restricted
to transactions carried out in the stock exchanges or organized over-the-counter markets licensed by the Brazilian securities commission, except for
transfers resulting from a corporate reorganization, occurring upon the death of an investor by operation of law or will or as a consequence of the
de-listing of the relevant shares from a stock exchange and the cancellation of the registration with the Brazilian securities commission.  

Under Resolution No. 2,689, foreign investors registered with the Brazilian securities commission may buy and sell shares on the São Paulo Stock
Exchange without obtaining a separate certificate of registration for each transaction. Investors under these regulations are also generally entitled to
favorable tax treatment.  

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Annex  V  to  Resolution  No.  1,289,  as  amended,  of  the  National  Monetary  Council,  also  known  as  the  Annex  V  Regulations,  provides  for  the
issuance of depositary receipts in foreign markets in respect of shares of Brazilian issuers.  

Following the closing of the sale of our ADSs in May 2002, an electronic certificate of registration was made in the name of The Bank of New
York,  as  the  depositary,  with  respect  to  such  ADSs  and  will  be  maintained  by  the  Brazilian  custodian  for  our  common  shares  on  behalf  of  the
depositary. This electronic registration is carried on through the Central Bank Information System. Pursuant to the registration, the custodian and
the depositary are able to convert dividends and other distributions with respect to the common shares represented by ADSs into foreign currency
and remit the proceeds outside Brazil. In the event that a holder of ADSs exchanges such ADSs for common shares, the holder will be entitled to
continue to rely on such electronic registration for five business days after the exchange. Thereafter, unless our common shares are held pursuant to
Resolution No. 2,689 by a duly registered investor, or, if not a registered investor under Resolution No. 2,689, a holder of common shares applies
for  and  obtains  a  new  certificate  of  registration  from  the  Central  Bank,  the  holder  may  not  be  able  to  convert  into  foreign  currency  and  remit
outside  Brazil  the  proceeds  from  the  disposition  of,  or  distributions  with  respect  to,  our  common  shares,  and  the  holder,  if  not  registered  under
Resolution No. 2,689, will be subject to less favorable Brazilian tax treatment than a holder of ADSs. In addition, if the foreign investor resides in a
“tax haven” jurisdiction, the investor will be also subject to less favorable tax treatment.  

See  “Item  3.D.  Key  Information—Risk  Factors—Risks  Relating  to  Our  Common  Shares  and  ADSs—Investors  who  exchange  ADSs  for  common 
shares may lose their ability to remit foreign currency abroad and to obtain Brazilian tax advantages” and “Item 10.E. Taxation—Brazilian Tax 
Considerations.”

10.E. Taxation 

This summary contains a description of certain Brazilian and U.S. federal income tax consequences of the purchase, ownership and disposition of
common shares or ADSs by a holder.  

The summary is based upon the tax laws of Brazil and the federal income tax laws of the United States as in effect on the date of this annual report,
which are subject to change, possibly with retroactive effect, and to differing interpretations. Holders of common shares or ADSs should consult
their own tax advisors as to the Brazilian, U.S. or other tax consequences of the purchase, ownership and disposition of common shares or ADSs,
including, in particular, the effect of any non-Brazilian, non-U.S., state or local tax laws.  

Although there presently is no income tax treaty between Brazil and the United States, the tax authorities of the two countries have had discussions
in the past regarding such a treaty. No assurance can be given, however, as to if or when a treaty will enter into force or how it will affect the U.S.
holders of common shares or ADSs.  

The withholding tax applicable to Interest on Shareholders Equity is retained and collected by us, and the shareholders are not grossed-up, although 
it is ultimately their responsibility to pay withholding taxes. 

Brazilian Tax Considerations 

The following discussion summarizes the principal Brazilian tax consequences of the acquisition, ownership and disposition of common shares or
ADSs  by  a  holder  that  is  not  domiciled  in  Brazil  for  purposes  of  Brazilian  taxation  (a  “non-Brazilian  holder”).  It  is  based  on  Brazilian  law  as 
currently  in  effect,  and,  therefore,  any  change  in  such  law  may  change  the  consequences  described  below.  Each  non-Brazilian  holder  should
consult his or her own tax adviser concerning the Brazilian tax consequences of an investment in common shares or ADSs.  

A non-Brazilian holder of ADSs may withdraw them in exchange for common shares in Brazil. Pursuant to Brazilian law, the non-Brazilian holder
may invest in the common shares under Resolution 2,689, of January 26, 2000, of the National Monetary Council (“2,689 holder”).

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Taxation of Dividends 

As a result of the tax legislation adopted on December 26, 1995, dividends based on profits generated after January 1, 1996, including dividends
paid in kind, payable by us in respect of common shares or ADSs, are exempt from withholding income tax. Dividends relating to profits generated
prior to January 1, 1996 may be subject to Brazilian withholding income tax at varying rates, depending on the year the profits were generated. 

Taxation of Gains 

Gains  realized  outside  Brazil  by  a  non-Brazilian  holder  on  the  disposition  of  ADSs  to  another  non-Brazilian  holder  are  not  currently  subject  to 
Brazilian tax. However, according to Law No. 10,833 of December 2003, or Law No. 10,833, the disposition of assets located in Brazil by a non-
Brazilian holder, whether to other non-Brazilian holder or Brazilian holders, may become subject to taxation in Brazil. Although we believe that
the ADSs do not fall within the definition of assets located in Brazil for the purposes of Law No. 10,833, considering the general and unclear scope
of it and the lack of judicial court ruling in respect thereto, we are unable to predict whether such understanding will ultimately prevail in the courts
of Brazil.  

Thus, the gain on disposition of ADSs by a non-Brazilian holder to a resident in Brazil (or even to a non Brazilian resident in case the argument
above  does  not  prevail)  may  be  subject  to  income  tax  in  Brazil  according  to  the  rules  described  below  for  ADSs  or  the  tax  rules  applicable  to
common shares, as applicable.  

The withdrawal of ADSs in exchange for common shares is not subject to Brazilian income tax provided that the regulatory rules are appropriately
observed in respect to the registration of the investment before the Central Bank of Brazil. The deposit of common shares in exchange for ADSs
may be subject to Brazilian capital income tax at the rate of 15% or 25%, in case the non-Brazilian holder is located in a tax haven, i.e. considered 
to be places which do not impose any income tax at a maximum rate of less than 20% and those where the internal legislation imposes restrictions
on  disclosure  of  the  shareholding  composition  or  the  ownership  of  the  investment  (“tax  haven  holder”),  if  the  acquisition  cost  of  the  common 
shares is lower than (1) the average price per common share on a Brazilian stock exchange on which the greatest number of such shares were sold
on the day of deposit, or (2) if no common shares were sold on that day, the average price on the Brazilian stock exchange on which the greatest
number of common shares were sold in the fifteen trading sessions immediately preceding such deposit. In this case, the difference between the
acquisition cost and the average price of the common shares, calculated as above, shall be considered a capital gain.  

Gains realized on disposition of common shares, are subject to income tax in Brazil, regardless of whether the sale or the disposition is made by the
non-Brazilian  holder to a resident or person  domiciled in  Brazil  or not,  based  on the  fact that the common shares could be considered as assets
located in Brazil for purposes of Law No. 10,833.  

Thus,  for  purposes  of  taxation  of  gains  earned  in  a  sale  or  disposition  of  common  shares  carried  out  on  the  Brazilian  stock  exchange  (which
includes the transactions carried out on the organized over-the-counter market):  

  are exempt from income tax when assessed by a 2,689 holder and is not a tax haven holder; and 

  are subject to income tax at a rate of 15% in any other case, including gains assessed by a non- Brazilian holder that (1) is not a 2,689 
holder, or (2) is a 2,689 holder but is a tax haven holder. In these cases, a withholding income tax of 0.005% shall be applicable and can 
be offset with the eventual income tax due on the capital gain.  

Any other gains assessed on the disposition of the common shares that are not carried out on the Brazilian stock exchange are subject to income tax
a  rate  of  15%,  except  for  tax  haven  holder  which,  in  this  case,  is  subject  to  income  tax  at  a  rate  of  25%.  In  case  these  gains  are  related  to
transactions conducted on the Brazilian non-organized over-the-counter market with intermediation, the withholding income tax of 0,005% shall 
also be applicable and can be offset with the eventual income tax due on the capital gain.  

In  the  case  of  redemption  of  securities  or  capital  reduction  by  a  Brazilian  corporation,  such  as  ourselves,  the  positive  difference  between  the
amount effectively received by the non-Brazilian holder and the corresponding acquisition cost is treated, for tax purposes, as capital gain derived
from disposition of common shares not carried out on a Brazilian stock exchange market, and is therefore subject to income tax at the rate of 15%
or 25%, as the case may be.  

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Any exercise of preemptive rights relating to the common shares will not be subject to Brazilian income tax. Any gain on the sale or assignment of
preemptive rights relating to the common shares by a non-Brazilian holder of common shares or ADSs will be subject to Brazilian taxation at the
same rate applicable to the sale or disposition of common shares.  

There is no assurance that the current preferential treatment for holders of ADSs and non-Brazilian holders of common shares under Resolution 
2,689 will continue in the future or that it will not be changed in the future. Reductions in the rate of tax provided for by Brazil’s tax treaties do not 
apply to the tax on gains realized on sales or exchange of common shares.  

Interest Attributed to Shareholders’ Equity 

Distribution of an interest on equity charge attributed to shareholders’ equity in respect of the common shares or ADSs as an alternative form of
payment to shareholders, including non-Brazilian holders of common shares or ADSs, is subject to Brazilian withholding income tax at the rate of
15% or 25%, in case of a tax-haven holder. Such payments, subject to certain limitations and requirements, are deductible for Brazilian income tax
purposes.  

Other Brazilian Taxes 

There are no Brazilian inheritance, gift or succession taxes applicable to the ownership, transfer or disposition of common shares or ADSs by a
non-Brazilian holder, except for gift and inheritance taxes, which are levied by some states of Brazil on gifts made or inheritances bestowed by a
non-Brazilian holder to individuals or entities resident or domiciled within such states in Brazil. There are no Brazilian stamp, issue, registration, or
similar taxes or duties payable by a non-Brazilian holder of common shares or ADSs.  

Tax on Bank Account Transaction, or CPMF 

Until  December  31,  2007,  any  transaction  carried  out  by  a  holder  of  securities  in  Brazil  that  results  in  the  transfer  of  reais  from  an  account 
maintained by such holder (or its custodian) with a Brazilian financial institution may be subject to the CPMF tax, at the rate of 0.38% . The funds
transferred for the acquisition of shares on a Brazilian stock exchange are exempt from the CPMF tax.  

As of January 1, 2008, the CPMF tax was abolished, and should not be levied on any debit to bank accounts carried out after that. The Brazilian
government may attempt to reestablish the CPMF tax.  

Taxation of Foreign Exchange Transactions, or IOF/Câmbio 

The IOF is a tax on foreign exchange, securities, credit and insurance transactions. The IOF rate may be changed by an Executive Decree (rather
than a law). In addition, the IOF rate is not subject to the ex-post-facto principle, which provides that laws increasing the rate of or creating new 
taxes will only come into effect as of the latter of (i) the first day of the year following their publication, or (ii) ninety days after their publication. A
statute increasing the IOF rate will as a result only take effect from its publication date.  

Regarding foreign exchange transactions, in spite of the maximum rate of IOF being 25%, the inflow and outflow of funds are generally subject to
IOF at a rate of 0.38%; however, the inflow and outflow of funds from portfolio investors located outside Brazil are not taxed. The conversion of
Brazilian currency into foreign currency for purposes of paying dividends on preferred shares and ADS is currently not taxed.  

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Tax on Bonds and Securities Transactions, or IOF/Títulos 

The  IOF/Títulos  may  be  imposed  on  any  transactions  involving  bonds  and  securities,  including  those  carried  out  on  Brazilian  futures  and
commodities stock exchanges. As a general rule, the rate of this tax for transactions involving common shares or ADSs is currently zero, although
the executive branch may increase such rate up to 1.5% per day, but only with respect to future transactions.  

United States Tax Considerations 

The summary discussion below is applicable to you only if you are a U.S. holder that is not domiciled in Brazil (or domiciled or resident in a tax
haven jurisdiction) for purposes of Brazilian taxation and, in the case of a holder of common shares, that has registered its investment in common
shares with the Central Bank as a U.S. dollar investment. A U.S. holder is a beneficial owner of a common share or ADS that, for U.S. federal
income tax purposes, is:  

  a citizen or resident of the United States; 

  a corporation created or organized in or under the laws of the United States or any political subdivision of the United States;

  an estate the income of which is subject to United States federal income taxation regardless of its source; or 

  a trust if it (1) is subject to the primary supervision of a court within the United States and one or more United States persons have the 
authority  to  control  all  substantial  decisions  of  the  trust  or  (2)  has  a  valid  election  in  effect  under  applicable  United  States  Treasury 
regulations to be treated as a United States person.  

Except where noted, this summary deals only with common shares or ADSs held as capital assets and does not deal with special situations, such as
those of banks, dealers in securities or currencies, traders in securities that elect to use a mark-to-market method of accounting for their securities 
holdings,  financial  institutions,  tax-exempt  entities,  insurance  companies,  real  estate  investment  trusts,  regulated  investment  companies,  persons
holding  common  shares  or  ADSs  as  part  of  a  hedging,  integrated,  conversion  or  constructive  sale  transaction  or  a  straddle,  persons  liable  for
alternative minimum tax, pass-through entities and investors in a pass-through entity, persons owning 10% or more of our voting stock, or persons
whose  “functional  currency”  is  not  the  U.S.  dollar.  Furthermore,  this  discussion  set  forth  under  “United  States  Taxation”  is  based  upon  the 
provisions of the Internal Revenue Code of 1986, as amended, or the Code, and regulations, rulings and judicial decisions thereunder as of the date
hereof, and such authorities may be repealed, revoked or modified so as to result in United States federal income tax consequences different from
those discussed below possibly with retroactive effect. In addition, such summary is based, in part, upon representations made by the Depositary to
us and assumes that the deposit agreement, and all other related agreements, will be performed in accordance with their terms. 

If a partnership holds common shares or ADSs, the tax treatment of a partner will generally depend upon the status of the partner and the activities
of the partnership. If you are a partner of a partnership holding common shares or ADSs, you should consult your tax advisors. 

ADSs 

In general, for United States federal income tax purposes, U.S. holders of ADSs will be treated as the owners of the underlying common shares that
are represented by such ADSs. Deposits or withdrawals of common shares by U.S. holders for ADSs will not be subject to United States federal
income tax. However, the United States Treasury has expressed concerns that parties involved in transactions wherein depositary shares are pre-
released may be taking actions that are inconsistent with the claiming of foreign tax credits by the holders of ADSs. Accordingly, the analysis of
the creditability of Brazilian taxes described herein could be affected by future actions that may be taken by the United States Treasury.  

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Taxation of Dividends 

The gross amount of distributions paid to you (including amounts withheld by the Brazilian taxing authority, if any, and any payments of interest
on shareholders’ equity, as described above under “—Brazilian Tax Considerations”) will be treated as dividend income to the extent paid out of
our current or accumulated earnings and profits, as determined under United States federal income tax principles. Such income may be included in
your  gross  income  as  ordinary  income  when  actually  or  constructively  received  by  you,  in  the  case  of  common  shares,  or  when  actually  or
constructively received by the Depositary, in the case of ADSs. Such dividends will not be eligible for the dividends received deduction allowed to
corporations  under  the  Code.  To  the  extent  that  the  amount  of  any  distribution  exceeds  our  current  and  accumulated  earnings  and  profits  for  a
taxable year, the distribution will first be treated as a tax-free return of capital to the extent of the U.S. holders tax basis in the common shares or
ADS, causing a reduction in the adjusted basis of our common shares or ADSs (thereby increasing the amount of gain, or decreasing the amount of
loss, to be recognized on a subsequent disposition of our common shares or ADSs), and thereafter, as capital gain recognized on a sale or exchange. 

The amount of any dividend paid in reais will equal the U.S. dollar value of the reais received calculated by reference to the exchange rate in effect 
on the date the dividend is received by you, in the case of common shares, or by the Depositary, in the case of ADSs, regardless of whether the
reais are converted into U.S. dollars. If the reais received as a dividend are not converted into U.S. dollars on the date of receipt, you will have a
basis in the reais equal to their U.S. dollar value on the date of receipt. Any gain or loss realized on a subsequent conversion or other disposition of
the reais will be treated as United States source ordinary income or loss.  

Certain dividends received by certain non-corporate U.S. Holders through taxable years beginning on or before 31 December 2010 are subject to a
reduced  maximum  tax rate of  15%  so  long as  (1) specified holding period  requirements  are met, (2)  the  U.S.  Holder  is not under  an obligation
(whether pursuant to a short sale or otherwise) to make related payments with respect to positions in substantially similar or related property, (3)
the company paying the dividend is a “qualified foreign corporation” and (4) the company is not a passive foreign investment company for U.S.
federal income tax purposes (a “PFIC”) in the year of distribution or the prior year. We do not believe that we were classified as a PFIC for our
prior taxable year nor do we expect to be classified as a PFIC. We generally will be treated as a qualified foreign corporation with respect to our
ADSs so long as the ADS remain listed on the New York Stock Exchange. Based on existing guidance, it is not entirely clear whether dividends
received  with  respect  to  the  common  shares  (to  the  extent  not  represented  by  ADSs)  will  be  treated  as  qualified  dividend  income,  because  the
common shares are not themselves listed on a U.S. exchange. You should consult your own advisor about the application of this rate to dividends
paid directly on common shares.

Subject to certain limitations, Brazilian withholding taxes on dividends, if any, may be treated as foreign taxes eligible for  credit against a U.S.
holder’s United States federal income tax liability. Alternatively, at a U.S. holder’s election if it does not elect to claim a foreign tax credit for any 
foreign taxes paid during the taxable year, all foreign income taxes paid may instead be deducted in computing such U.S. holder’s taxable income. 
For purposes of calculating the foreign tax credit, dividends paid on our common shares will be treated as income from sources outside the United
States. The limitation on foreign taxes eligible for credit is calculated separately with respect to specific classes of income. Special rules apply to
certain  individuals  whose  foreign  source  income  during  the  taxable  year  consists  entirely  of  “qualified  passive  income”  and  whose  creditable 
foreign taxes paid or accrued during the taxable year do not exceed US$300 (US$600 in the case of a joint return). Further, a U.S. holder that (q)
has held common shares or ADSs for less than a specific minimum period during which it is not protected from risk of loss or (2) is obligated to
make payments related to the dividends will not be allowed a foreign tax credit for foreign taxes imposed on dividends paid on common shares or
ADSs.  In  addition,  a  U.S.  holder  that  holds  the  shares  in  certain  arrangements  in  which  the  U.S.  holder’s  expected  economic  profits  are 
insubstantial may not be allowed a foreign tax credit for such foreign taxes. The rules governing the foreign tax credit are complex. You should
consult your tax advisors regarding the availability of the foreign tax credit under your particular circumstances.  

Taxation of Capital Gains 

For United States federal income tax purposes, you generally will recognize taxable gain or loss on any sale, exchange or other disposition of a
common share or ADS in an amount equal to the difference between the U.S. dollar value of the amount realized for the common share or ADS
and your adjusted tax basis in the common share or ADS, determined in U.S. dollars. Such gain or loss will be capital gain or loss. The capital gain
or loss will be long-term capital gain or loss if at the time of sale, exchange or other disposition you have held our common shares or ADSs for
more than one year. Capital gains of individuals derived with respect to capital assets held for more than one year are eligible for reduced rates of
taxation. The deductibility of capital losses is subject to limitations. Any gain or loss recognized by you will generally be treated as United States
source gain or loss. Consequently, a U.S. holder may not be able to use the foreign tax credit arising from Brazilian tax imposed, if any, on the
disposition of a common share or ADS unless such credit can be applied (subject to applicable limitations) against tax due on other income treated
as derived from foreign sources.  

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Passive Foreign Investment Company Rules 

Based upon  our current and projected income,  assets and activities, we do not expect  the common shares or ADSs to be considered shares of a
PFIC for our current fiscal year or for future fiscal years. However, because the determination of whether the common shares or ADSs constitute
shares of a PFIC will be based upon the composition of our income and assets, and entities in which we hold at least a 25% interest, from time to
time, and because there are uncertainties in the application of the relevant rules, there can be no assurance that the common shares or ADSs will not
be considered shares of a PFIC for any fiscal year. If the common shares or ADSs were shares of a PFIC for any fiscal year, U.S. holders (including
certain  indirect  U.S.  holders)  may  be  subject  to  adverse  tax  consequences,  including  the  possible  imposition  of  an  interest  charge  on  gains  or
“excess distributions” allocable to prior years in the U.S. holder’s holding period during which we were determined to be a PFIC. If we are deemed
to  be  a  PFIC  for  a  taxable  year,  dividends  on  our  ADSs  would  not  be  “qualified  dividend  income”  subject  to  preferential  rates  of  U.S.  federal 
income taxation. U.S. holders should consult their own tax advisors regarding the application of the PFIC rules to the common shares or ADSs.  

Information Reporting and Backup Withholding 

In general, information reporting requirements will apply to dividends in respect of our common shares or ADSs or the proceeds received on the
sale, exchange, or redemption of our ADSs, in each case to the extent treated as being paid within the United States (and in certain cases, outside of
the  United  States)  to  you  unless  you  establish  you  are  an  exempt  recipient  (such  as  a  corporation),  and  backup  withholding  may  apply  to  such
amounts if you do not establish you are an exempt recipient and you fail to provide a correct taxpayer identification number. The amount of any
backup withholding from a payment to you will be allowed as a refund or credit against your United States federal income tax liability provided
you timely furnish the required information to the Internal Revenue Service.  

10.F. Dividends and Payments Agents

Not applicable. 

10.G. Statements by Experts 

Not applicable. 

10.H. Documents on Display 

We  are  subject  to  the  periodic  reporting  and  other  informational  requirements  of  the  U.S.  Securities  Exchange  Act  of  1934,  as  amended.
Accordingly, we are required to file reports and other information with the U.S. Securities and Exchange Commission. You may inspect and copy
reports and other information filed by us at the public reference facilities maintained by the Commission at 450 Fifth Street, N.W, Washington D.C.
20549. You may obtain copies of these materials upon written request from the Public Reference Section of the Commission at 450 Fifth Street,
N.W,  Washington  D.C.  20549  at  prescribed  rates.  You  may  also  inspect  this  material  at  the  offices  of  the  New  York  Stock  Exchange,  Inc.,  20
Broad Street, New York, New York 10005. In addition to the public reference facilities maintained by the Commission and the New York Stock
Exchange, you may obtain a copy of the annual report, upon written request from the depositary for our ADSs at its corporate trust office located at
101 Barclay Street, New York, New York 10286.  

We  also  furnish  to  the  depositary  annual  reports  in  English  including  audited  annual  financial  statements  and  unaudited  quarterly  financial
statements in English for each of the first three quarters of the fiscal year. We also furnish to the depositary English translations or summaries of all
notices of shareholders’ meetings and other reports and communications that are made generally available to holders of common shares. 

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ITEM 11. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK 

We are exposed to various market risks—in particular, foreign currency exchange rate risk and interest rate risk. We are exposed to exchange rate
risk because a substantial portion of our financial expenses are denominated in foreign currencies (primarily the U.S. dollar), while we generate all
of  our  net  operating  revenues  in  reais.  Similarly,  we  are  subject  to  interest  rate  risk  based  upon  changes  in  interest  rates,  which  affect  our  net
financial expenses. For futher information on how expousures are managed, see “Item 5 – Operating and Financial Review and Prospects”.

Exchange Rate Risk 

As  of  December  31,  2007  and  2006,  approximately  R$1,242.3  million  and  R$1,472.8  million,  or  21.9%  and  23.3%,  respectively,  of  our  debt
obligations  were  denominated  in  foreign  currencies  (including  debt  pegged  to  baskets  of  foreign  currencies).  The  basket  of  foreign  currency-
pegged debt consists primarily of our debt with the Inter-American Development Bank. As a result, we are exposed to exchange rate risks that may 
adversely affect our financial condition and results of operations, as well as our ability to meet debt service obligations. 

Exchange Rate Sensitivity  

We estimate that the potential loss to us in connection with U.S. dollar-denominated debt that would have resulted as of December 31, 2007 and 
2006 from each hypothetical instantaneous and unfavorable 1% change in the U.S. dollar against the real would have been approximately R$12.4 
million  and  R$14.7  million,  respectively.  Consistent  with  these  estimates,  a  hypothetical  instantaneous  and  unfavorable  10%  change  in  this
exchange  rate  would  have  resulted  in  losses  of  approximately  R$124.2  million  and  R$147.3  million  as  of  December  31,  2007  and  2006,
respectively. These estimates do not take into account that the changes in exchange rates comprising the baskets of foreign currencies often present
variations different from the devaluation of the real in relation to the U.S. dollar.  

The devaluation of the real in relation to the U.S. dollar and with the Inter-American Development Bank and World Bank basket of currencies, for
the year ended December 31, 2007 were as follows:  

Devaluation (appreciation) of real in relation to: 
   U.S. dollar 
   World Bank basket of currencies 
   Inter-American Development Bank basket of currencies 

Year ended December 31,
2006
2007

(in percentages)
(20.7) 
NA  
4.0  

(9.5)
3.42 
2.1 

We  have  not  utilized  derivative  financial  instruments,  although  at  times,  we  enter  into  forward  exchange  transactions  and  financial  funding
transactions in reais to mitigate foreign currency exposure. On December 31, 2007 we had no forward exchange transactios.  

As of December 31, 2007 and 2006, we had no short-term debt outstanding, other than the current portion of long-term debt.  

Interest Rate Risk 

As of December 31, 2007 and 2006, approximately R$2.431,2 million, or 54.7%, and R$2,598.8 million, or 53.3%, respectively, of our total debt
outstanding balance denominated in reais, was based on variable rates of interest based on the Unidade Padrão de Referência—UPR (Reference 
Standard  Unit),  which  is  equal  to  the  Taxa  Referencial—TR  (daily  government  interest  rate).  In  addition,  on  December  31,  2007  and  2006,
approximately R$750.5  million, or  16.9%, and R$1,041.4 million,  or 21.5%, respectively,  of our total debt denominated  in  reais was subject to 
interest rates based on the Certificado de Depósito Interbancário, or CDI, rate (benchmark interest rate set by the Brazilian interbank market on a
daily basis). As of December 31, 2007 and 2006, R$721.1 million and R$849.4 million, respectively, of our foreign-currency denominated debt 
was  based  on  the  Inter-American  Development  Bank  and  the  World  Bank  variable  rates  of  interest,  which  are  determined  based  on  the  cost  of
funding of these multilateral organizations in each period.  

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As of December 31, 2007 and 2006, we did not have any derivative contracts outstanding which limited exposure to changes in the UPR or the
CDI or in the Inter-American Development Bank or World Bank variable rates. However, we are obliged by law to invest our excess cash with
financial institutions controlled by the Brazilian government. We invest these excess funds, which totaled R$392.2 million on December 31, 2007
and R$248.1 million on December 31, 2006, mainly in short-term instruments. As a result, our exposure to Brazilian interest rate risk is partially
limited by our real-denominated floating interest time deposits investments, which generally earn the CDI rate. In addition to our exposure with
respect to existing indebtedness, we may become exposed to interest rate volatility with respect to indebtedness incurred in the future.  

We estimate that we would have suffered a loss over periods of one year, respectively, of up to R$7.5 million and R$10.5 million if a hypothetical
instantaneous and unfavorable change of 100 basis points in the interest rates applicable to financial liabilities on December 31, 2007 and 2006,
respectively, had occurred. Consistent with these estimates, a hypothetical instantaneous and unfavorable 10%, or 1000 basis point, change in these
interest rates would have resulted in losses of approximately R$75.1 million and R$104.1 million as of December 31, 2007 and 2006, respectively.
This  sensitivity  analysis  is  based  on  the  assumption  of  an  unfavorable  100  basis  point  movement  of  the  interest  rates  applicable  to  each
homogeneous category of financial liabilities and sustained over a period of one year and that such movement may or may not affect interest rates
applicable  to  any  other  homogenous  category  of  financial  liabilities.  A  homogeneous  category  is  defined  according  to  the  currency  in  which
financial  liabilities  are  denominated  and  assumes  the  same  interest  rate  movement  within  each  homogeneous  category  (e.g.,  U.S.  dollars).  As  a
result,  our  interest  rate  risk  sensitivity  model  may  overstate  the  effect  of  interest  rate  fluctuation  on  these  financial  instruments,  as  consistently
unfavorable movements of all interest rates are unlikely.  

The tables below provide information about our interest rate-sensitive instruments. For variable interest rate debt, the rate presented is the weighted
average  rate  calculated  as  of  December  31,  2007.  For  the  foreign  currency  denominated  obligations  these  amounts  have  been  converted  at  the
selling rates as of December 31, 2007, and do not represent amounts which may actually be payable with respect to such obligations on the dates
indicated.  

Assets: 
Time deposits denominated 
   in reais 

Total assets 

Liabilities: 
Long-term debt: 
Floating rate, denominated in reais 
   indexed by TR or UPR 
Floating rate, denominated in reais 
   indexed by TJLP 
Floating rate, denominated in reais 
   indexed by IGPM 
Floating rate, denominated in reais 
   indexed by CDI 
Floating rate, denominated in U.S. 
   dollars 
Fixed rate, denominated in 
U.S. dollars 
Total long-term debt 

As of December 31, 2007

Expected maturity date

2008

2009

2010

2011

After2012

Total

(in millions, except percentages)

392.2 

392.2 

-

-

-

-

-

-

-  

-  

392.2  

392.2  

312.6 

321.5 

348.7 

379.0 

1,084.7  

2,446.5  

43.1 

47.8 

86.9 

68.6 

42.2 

218.7 

626.0 

59.8 

183.1 
742.1 

4.9 
1,273.1 

124 

41.9 

41.9 

40.0  

209.1  

321.3 

387.5 

76.0 

59.8 

4.9 
852.6 

23.1 

59.8 

6.1 
897.4 

-  

-  

975.3  

812.0  

481.8  

729.8  

313.5  
1,920.0  

512.5  
5,685.2  

Average
annual
interest rate

9.76% 

2.40% 

19.46% 

12.53% 

4.86% 

8.23% 

 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
   
   
 
 
 
   
   
 
   
   
 
   
   
 
 
   
   
 
 
   
   
 
 
   
   
 
 
   
   
 
 
   
   
 
 
 
The percentage of our debt subject to fixed and floating interest rates is as follows:  

Floating rate debt:
   Denominated in U.S. dollars 
   Denominated in Euro 
   Denominated in reais

Fixed rate debt:
   Denominated in U.S. dollars 
Total

Table of Contents

On December 31,
2007

2006

12.84%  
0.00%  
78.15%  

13.56% 
0.00% 
76.72% 

9.01%  
100.00%  

9.72% 
100.00% 

ITEM 12. DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES 

12.A. Debt Securities 

Not applicable.  

12.B. Warrants and Rights 

Not applicable.  

12.C. Other Securities 

Not applicable.  

12.D. American Depositary Shares 

Not applicable.  

PART II 

ITEM 13. DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES 

Not applicable.  

ITEM 14. MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS

Not applicable.  

a) Disclosure Controls and Procedures.

ITEM 15. CONTROLS AND PROCEDURES 

We maintain disclosure controls and procedures (as defined in the U.S. Securities Exchange Act of 1934 under Rule 13a-15(e)) that are designed to 
ensure  that  information  required  to  be  disclosed  by  us  in  the  reports  that  we  file  and  submit  under  the  Exchange  Act  is  recorded,  processed,
summarized  and  reported  within  the  time  periods  specified  in  Securities  and  Exchange  Commission  rules  and  forms,  and  accumulated  and
communicated to management, including our Chief Executive Officer and Chief Financial Officer and Investor Relations Officer, to allow timely
decisions regarding required disclosures. Our management, under the supervision and with the participation of our Chief Executive Officer and our
Chief Financial Officer and Investor Relations Officer, has evaluated the effectiveness of our disclosure controls and procedures as of December
31, 2007, the end of the period covered by this annual report. Based on this evaluation, our management, including our Chief Executive Officer and
our Chief Financial Officer and Investor Relations Officer, has concluded that as of December 31, 2007, our disclosure controls and procedures
were effective at the reasonable assurance level.  

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b) Management’s Report on Internal Control over Financial Reporting 

The management of Companhia de Saneamento Básico do Estado de São Paulo - SABESP (the “Company”) is responsible for establishing and
maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting
as defined in Rules 13a-15(f) under the U.S.Securities Exchange Act of 1934.  

The  Company’s  internal  control  over  financial  reporting  is  a  process  designed  by,  or  under  the  supervision  of,  the  Company’s  Chief  Executive 
Officer  and  Chief  Financial  Officer  and  Investor  Relations  Officer  and  effected  by  the  Company’s  board  of  directors,  Audit  Committee,
management, and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial
statements  for  external  purposes  in  accordance  with  generally  accepted  accounting  principles.  The  Company’s  internal  control  over  financial 
reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect
the  transactions  and  dispositions  of  the  assets  of  the  Company;  (2)  provide  reasonable  assurance  that  transactions  are  recorded  as  necessary  to
permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the
Company  are  being  made  only  in  accordance  with  authorizations  of  management  and  directors  of  the  Company;  and  (3)  provide  reasonable
assurance  regarding  prevention  or  timely  detection  of  unauthorized  acquisition,  use,  or  disposition  of  the  Company’s  assets  that  could  have  a
material effect on the financial statements.  

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect  material  misstatements  on  a  timely  basis.
Therefore even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and
presentation.  Also,  projections  of  any  evaluation  of  effectiveness  to  future  periods  are  subject  to  the  risk  that  controls  may  become  inadequate
because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.  

Management assessed the effectiveness of the Company’s internal control over financial reporting as of December 31, 2007, based on the criteria
established  in  Internal  Control  –  Integrated  Framework  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission  -
COSO.  Based  on  that  assessment,  management  has  concluded  that  as  of  December  31,  2007,  the  Company’s  internal  control  over  financial 
reporting is effective.  

The Company's independent registered public accounting firm, Deloitte Touche Tohmatsu Auditores Independentes, have audited the Company’s 
internal control over financial reporting, and the report of the auditors is included in Part II, Item 15 (c).  

/s/GESNER JOSÉ DE OLIVEIRA FILHO 
Gesner José de Oliveira Filho  
Chief Executive Officer  
July10, 2008  

/s/RUI DE BRITTO ÁLVARES AFFONSO 
Rui de Britto Álvares Affonso  
Chief Financial Officer and Investor Relations Officer  
July 10, 2008  

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c) Attestation Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm  

To the Board of Directors and Shareholders of  
Companhia de Saneamento Básico do Estado de São Paulo - SABESP 

We  have  audited  the  internal  control  over  financial  reporting  of  Companhia  de  Saneamento  Básico  do  Estado  de  São  Paulo  -  SABESP  (the 
“Company”)  as  of  December  31,  2007,  based  on  criteria  established  in  Internal  Control  —  Integrated  Framework  issued  by  the  Committee  of
Sponsoring  Organizations  of  the  Treadway  Commission  (COSO).  The  Company’s  management  is  responsible  for  maintaining  effective  internal 
control  over  financial  reporting  and  for  its  assessment  of  the  effectiveness  of  internal  control  over  financial  reporting,  included  in  the
accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s 
internal control over financial reporting based on our audit.  

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards
require  that  we  plan  and  perform  the  audit  to  obtain  reasonable  assurance  about  whether  effective  internal  control  over  financial  reporting  was
maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk
that a material weakness  exists, testing  and evaluating  the  design  and  operating effectiveness of internal control based on the assessed risk, and
performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our
opinion.  

A company’s internal control over financial reporting is a process designed by, or under the supervision of, the company’s principal executive and 
principal  financial  officers,  or  persons  performing  similar  functions,  and  effected  by  the  company’s  board  of  directors,  management,  and  other
personnel to provide reasonable  assurance regarding the reliability  of financial reporting  and  the preparation of financial statements for external
purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies 
and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions
of  the  assets  of  the  company;  (2)  provide  reasonable  assurance  that  transactions  are  recorded  as  necessary  to  permit  preparation  of  financial
statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in
accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely
detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.  

Because  of  the  inherent  limitations  of  internal  control  over  financial  reporting,  including  the  possibility  of  collusion  or  improper  management
override  of  controls,  material  misstatements  due  to  error  or  fraud  may  not  be  prevented  or  detected  on  a  timely  basis.  Also,  projections  of  any
evaluation of the effectiveness of the internal control over financial reporting to future periods are subject to the risk that the controls may become
inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. 

In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2007, based
on  the  criteria  established  in  Internal  Control  —  Integrated  Framework  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway
Commission (COSO).  

We  have  also  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board  (United  States),  the  financial
statements as of and for the year ended December 31, 2007 of the Company and our report dated July 10, 2008 expressed an unqualified opinion on
those  financial  statements,  containing  explanatory  paragraphs  concerning  (1)  the  Company’s  negotiations  with  the  São  Paulo  State  Government 
regarding the reimbursement of the amounts for supplementary retirement and pension paid by the Company; (2) the Company’s agreement with 
the São Paulo Municipal Government, seeking stability in the provision of services in the municipality of São Paulo and establishment of sanitation
and  environmental  actions  supplementary  to  the  actions  taken  by  the  Municipality;  (3)  how  the  Company´s  application  of  accounting  practices
adopted in Brazil vary in certain respects from accounting principles generally accepted in the United States of America; and (4) the presentation of
the statements of cash flows.  

/s/ Deloitte Touche Tohmatsu 
Auditores Independentes  

July 10, 2008 
São Paulo, Brazil.  

127 

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d) Changes in internal control over financial reporting 

There  have  been  improvements  in  our  internal  control  over  financial  reporting  as  of  December  31,  2007.  Our  management  adjusted  the  current
controls and implemented other controls that reinforced our internal control structure and guaranteed a substantial improvement in the effectiveness
of the financial statements such as the updating of the Procedure for the Segregation of Duties.  

Management, under the supervision and with the participation of our Chief Executive Officer and Chief Financial Officer and Investor Relations
Officer,  has  been  actively  engaged  in  the  implementation  of  remediation  efforts  to  address  the  material  weaknesses  that  was  in  existence  as  of
December 31, 2006 and previously disclosed in our 2006 Annual Report on Form 20-F.  

The  following  describes  the  major  controls  that  have  been  implemented  to  remediate  the  material  weaknesses  that  existed  as  of  December  31,
2006:  

1.
2.

3.

4.
5.

6.

implemented more stringent policies and procedures for our processes over accounting reconciliation;  
performed an extensive study and a reconciliation of the balance of the Unidentified Collections (Unapplied Cash Receipts) account,
included as part of Customer Accounts Receivable; 
introduced  a  review  by  an  independent  department  to  ensure  the  timely  and  accurate  transfer  of  amounts  from  the  construction-in-
progress account to the corresponding accounts for property, plant and equipment; 
automated certain controls that were performed manually; 
performed a month-end review and closing processes as well as provided additional oversight and supervision within the accounting
department;  
promoted  programs  that  provide  ongoing  training  and  professional  education  as  well  as  development  plans  for  the  accounting 
department and to improve internal communications procedures throughout the Company. 

All of this work was conducted by a group designed specifically to address the internal control issues related to the reconciliation of the balance of
the  Unidentified  Collections  account  and  the  timely  and  accurate  transfer  of  amounts  from  the  construction-in-progress  account  to  the 
corresponding accounts for property, plant and equipment.  

As of December 31, 2007, the group specifically designated to address the internal control issues completed the above remediation efforts. As a
result of  this work, we have concluded that the  previous  material  weaknesses  as disclosed in our 2006 Annual Report on Form 20-F have been 
remediated as of December 31, 2007.  

16.A. AUDIT COMMITTEE FINANCIAL EXPERT 

ITEM 16 

At a board meeting held on June 26, 2006, we established an audit committee, as defined under section 3(a)(58) of the Exchange Act. Our board of
directors has determined that Jerônimo Antunes qualifies as an “audit committee financial expert” as defined for the purposes of this Item 16A in 
Item 16A of Form 20-F. Jerônimo Antunes is an “independent director” within the meaning of the SEC rules. 

128 

 
 
 
 
 
 
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16.B. CODE OF ETHICS 

We  have  adopted  a  code  of  business  conduct  and  ethics,  as  defined  in  Item  16B  of  Form  20-F  under  the  Securities  Exchange  Act  of  1934,  as 
amended. Our code of business conduct  and  ethics, called Code of Ethics and Conduct, applies to all  employees of  Sabesp, including  directors,
principal executive officer, principal financial officer and principal accounting officer. Our Code of Ethics and Conduct is available on our web site
at http://www.sabesp.com.br under “Corporate Governance”. If we amend the provisions of our Code of Ethics and Conduct, or if we grant any
waiver of such provisions, we will disclose the amendment or waiver on our web site at the same address. 

16.C. PRINCIPAL ACCOUNTANT FEES AND SERVICES 

Deloitte Touche Tohmatsu Auditores Independentes served as our independent registered public accounting firm for the years ended December 31,
2005, 2006 and 2007 appearing in this annual report on Form 20-F.  

The following table presents the aggregate fees for professional services and other services rendered to us by Deloitte Touche Tohmatsu Auditores
Independentes in 2005, 2006 and 2007. 

2005
(in thousands of R$)

2006
(in thousands of R$)

2007
(in thousands of R$)

Audit Fees(1)
Audit-related Fees(2)
Tax Fees 
All Other Fees 
Total 
________________________________________ 
(1) Audit Fees are the fees billed by Deloitte Touche Tohmatsu Auditores Independentes for the fiscal years fo 2005, 2006 and 2007 for the audit
of  our  annual  financial  statements,  reviews  of  interim  financial  statements  and  attestation  services  that  are  provided  in  connection  with
statutory and regulatory filings or engagements.

1,548  
—
—
—
1,548  

1,923 
—
—
—
1,923 

370 
—
—
—
370 

Pre-approval policies and procedures 

Pursuant  to  Brazilian  law,  our  board  of  directors  is  responsible,  among  other  matters,  for  the  selection,  dismissal  and  oversight  of  the  external
auditor.  Our  management  is  required  to  obtain  the  board  of  directors’  approval  before  engaging  independent  auditors  to  provide  any  audit  or
permitted non-audit services to us. The Brazilian Federal and State Public Bidding Laws also apply to us with respect to obtaining services from
third  parties  for  our  business,  including  the  services  provided  by  our  independent  external  auditor.  As  part  of  the  bidding  process,  the  external
independent auditing firms are required to submit proposals, and are then selected by us based on certain criteria including technical expertise and
cost.  

During 2005, 2006 and 2007, Deloitte Touche Tohmatsu Auditores Independentes did not provide non-audit services to us. 

16.D. EXEMPTIONS FROM THE LISTING STANDARDS FOR AUDIT COMMITTEES 

We are in full compliance  with the listing standards  for  audit committee pursuant to Exchange  Act  Rule  10A-3.  For a further discussion of  our
fiscal council and the audit committee exemption, see “Item 6.C. Directors, Senior Management and Employees—Board Practices.”

16.E. PURCHASES OF EQUITY SECURITIES BY ISSUER AND AFFILIATED PURCHASERS 

Not Applicable. 

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PART III 

ITEM 17. FINANCIAL STATEMENTS 

We have responded to Item 18 in lieu of responding to this Item.  

ITEM 18. FINANCIAL STATEMENTS 

The following financial statements, together with the Report of Independent Registered Public Accounting Firms, are filed as part of this annual
report:  

Index to Financial Statements  

Report of Independent Registered Public Accounting Firm from Deloitte Touche Tohmatsu Auditores Independentes 

Balance Sheets as of December 31, 2007 and 2006 

Statements of Income for the years ended December 31, 2007, 2006 and 2005 

Statements of Changes in Shareholders’ Equity for the years ended December 31, 2007, 2006 and 2005 

Statements of Changes in Financial Position for the years ended December 31, 2007, 2006 and 2005 

Notes to Financial Statements as of and for the years ended December 31, 2006, 2005 and 2004 

ITEM 19.EXHIBITS 

F-3 

F-4

F-6 

F-7 

F-8 

F-
10 

Item Description
1.1 
4.1 

By-laws of the Registrant (English translation) (incorporated by reference to the June 23, 2008 Form 6-K).  
Agreement between the Registrant and the State Department of Water and Energy (Departamento de Águas e Energia Elétrica—DAEE), 
dated April 24, 1997 (English translation) (incorporated by reference to Exhibit 10.1 to the Registrant’s Registration Statement on Form F-1 
filed on April 8, 2002 (the “April 8, 2002 Form F-1”)). 
Protocol of Understanding between the Registrant and the State of São Paulo, dated September 30, 1997 (English translation) (incorporated 
by reference to Exhibit 10.2 to the April 8, 2002 Form F-1).
Agreement  between  the  Registrant  and  the  State  of  São  Paulo,  through  the  Secretariat  of  Finance,  dated September  10,  2001  (English 
translation) (incorporated by reference to Exhibit 10.3 to the April 8, 2002 Form F-1). 
Agreement between the Registrant and the State of São Paulo, through the Secretariat of the Treasury, dated December 11, 2001 (English 
translation) (incorporated by reference to Exhibit 10.4 to the April 8, 2002 Form F-1).
Amendment to the Agreement, dated April 24, 1997, between the Registrant and the State Department of Water and Energy, dated March 
16, 2000 (English translation) (incorporated by reference to Exhibit 10.5 to the April 8, 2002 Form F-1).  
Amendment  to  the  Agreement,  dated  April  24,  1997,  between  the  Registrant  and  the  State  Department  of Water  and  Energy,  dated
November 21, 2001 (English translation) (incorporated by reference to Exhibit 10.6 to the April 8, 2002 Form F-1).  
First Amendment to the Agreement, dated December 11, 2001, between the Registrant and the State of São Paulo, dated March 22, 2004. 
(English Translation) (incorporated by reference to Exhibit 4.7 to the June 28, 2004 Form 20-F).
Second Amendment to the Agreement, dated December 11, 2001, between the Registrant and the State of São Paulo, dated December 28, 
2007. (English Translation) (incorporated by reference to the February 25, 2008 Form 6-K). 

4.2 

4.3 

4.4 

4.5 

4.6 

4.7 

4.8 

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Table of Contents

Item Description
4.9 

Commitment Agreement, between the Registrant and the State of São Paulo, dated March 26, 2008. (English Translation) (incorporated by 
reference to the April 28, 2008 Form 6-K).

4.10  Agreement  Executed  between  the  Registrant  and  the  São  Paulo  City  Government,  dated  November  14, 2007  (English  Translation)

(incorporated by reference to the March 12, 2008 Form 6-k). 

4.11  Amendment  to  the  Agreement  Executed  between  the  Registrant  and  the  São  Paulo  City  Government, dated  February10,  2008  (English 

Translation) (incorporated by reference to the May 12, 2008 Form 6-k). 

4.12  Code of Ethics and Conduct dated January 26, 2006 (English Translation) (incorporated by reference to the July 7, 2008 Form 6-k). 
4.13  The Audit Committee Charter dated August 9, 2007 (English Translation) (incorporated by reference to the July 7, 2008 Form 6-k).
12.1 Certification of Gesner José de Oliveira Filho, Chief Executive Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 
12.2 Certification  of  Rui  de  Britto  Álvares  Affonso,  Chief  Financial  Officer  and  Investor  Relations  Officer, pursuant  to  Section  302  of  the 

Sarbanes-Oxley Act of 2002. 

13.1 Certification of Gesner José de Oliveira Filho, Chief Executive Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 

906 of the Sarbanes-Oxley Act of 2002. 

13.2 Certification of Rui de Britto Álvares Affonso, Chief Financial Officer and Investor Relations Officer, pursuant to 18 U.S.C. Section 1350, 

as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 

15.1 Management’s report dated July 10, 2008, on the effectiveness of our internal control over financial reporting as of December 31, 2007. 

131 

SIGNATURES 

Table of Contents

The  registrant  hereby  certifies  that  it  meets  all  of  the  requirements  for  filing  on  Form  20-F  and  that  it  has  duly  caused  and  authorized  the 
undersigned to sign this annual report on its behalf.  

COMPANHIA DE SANEAMENTO BÁSICO DO
ESTADO DE SÃO PAULO-SABESP

By:   /s/GESNER JOSÉ DE OLIVEIRA FILHO
Name: Gesner José de Oliveira Filho 
Title:  Chief Executive Officer 

By:   /s/RUI DE BRITTO ÁLVARES AFFONSO
Name: Rui de Britto Álvares Affonso 
Title:  Chief Financial Officer and 

Investor Relations Officer

Date: July 10, 2008  

132 

 
INDEX TO FINANCIAL STATEMENTS 

Report of Independent Registered Public Accounting Firm from Deloitte Touche Tohmatsu Auditores Independentes

Balance Sheets on December 31, 2007 and 2006

Statement of Income for the years ended December 31, 2007, 2006 and 2005

Statements of Changes in Shareholders’ Equity for the years ended December 31, 2007, 2006 and 2005

Statement of Changes in Financial Position for the years ended December 31, 2007, 2006 and 2005

Notes to Financial Statements for the years ended December 31, 2007, 2006 and 2005

Table of Contents

F-3

F-4

F-6

F-7

F-8

F-10

F-1

Table of Contents

Companhia de Saneamento  

Básico do Estado de São Paulo – 

SABESP 

F-2

Table of Contents

Report of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of  
Companhia de Saneamento Básico do Estado de São Paulo - SABESP  

We have audited the accompanying balance sheets of Companhia de Saneamento Básico do Estado de São Paulo – SABESP (the “Company”) as 
of December 31, 2007 and 2006, and the related  statements of operations, changes in shareholders’  equity and changes in financial position for
each of the three years in the period ended December 31, 2007. These financial statements are the responsibility of the Company’s management. 
Our responsibility is to express an opinion on these financial statements based on our audits.  

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards
require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement.
An  audit  also  includes  examining,  on  a  test  basis,  evidence  supporting  the  amounts  and  disclosures  in  the  financial  statements,  assessing  the
accounting principles used and significant estimates made by management, as well as evaluating the overall financial statements presentation. We
believe that our audits provide a reasonable basis for our opinion.  

In our opinion, such financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2007 and
2006, and the results of its operations, the changes in shareholders’ equity and the changes in its financial position for each of the three years in the 
period ended December 31, 2007, in conformity with accounting practices adopted in Brazil.  

Accounting practices adopted in Brazil vary in certain respects from accounting principles generally accepted in the United States of America. The
application  of  the  latter  would  have  affected  results  of  operations  for  each  of  the  three  years  in  the  period  ended  December  31,  2007  and  the
determination of shareholders’ equity as of December 31, 2007 and 2006, to the extent summarized in Note 26 to the financial statements.  

Our audits were conducted for the purpose of forming an opinion on the basic financial statements taken as a whole. The statements of cash flows
for each of the three years in the period ended December 31, 2007 are presented for purposes of additional analysis and is not a required part of the
basic financial statements prepared in accordance with accounting practices adopted in Brazil. Such information has been subjected to the auditing
procedures applied in the audit of the basic financial statements and, in our opinion, is fairly stated in all material respects in relation to the basic
financial statements taken as a whole.  

As mentioned in Notes 6 to the financial statements, the Company is negotiating with the São Paulo State Government the reimbursement of the
amounts for supplementary retirement and pension paid by the Company.  

As mentioned in Note 23 to the financial statements, on November 14, 2007, the Company entered into an agreement with the São Paulo Municipal
Government,  seeking  stability  in  the  provision  of  services  in  the  municipality  of  São  Paulo  and  establishment  of  sanitation  and  environmental
actions supplementary to the actions taken by the Municipality.  

We  have  also  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board  (United  States),  the  Company’s 
internal  control  over  financial  reporting  as  of  December  31,  2007  based  on  the  criteria  established  in  Internal  Control–Integrated  Framework
issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission  (COSO)  and  our  report  dated  July  10,  2008  expressed  an
unqualified opinion on the Company’s internal control over financial reporting.  

/s/ Deloitte Touche Tohmatsu  
Auditores Independentes  

July 10, 2008  
São Paulo, Brazil.  

F-3

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

BALANCE SHEETS AS OF DECEMBER 31, 2007AND 2006

(In thousands of Brazilian reais – R$) 

Assets

Current assets
Cash and cash equivalents (note 4)
Customer accounts receivable, net (note 5)
Receivable from shareholder, net (note 6)
Inventories 
Taxes Recoverable 
Other current assets 
Deferred taxes (note 11)

Total current assets 

Non current assets
Long-term assets
Customer accounts receivable, net (note 5)
Receivable from shareholder, net (note 6)
Indemnities receivable (note 7)
Escrow deposits 
Other assets 
Deferred taxes (note 11)
Investments 
Property, plant and equipment, net (note 8)
Intangible assets (note 9)
Deferred charges 

Total non current assets 

Total Assets

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

F-4

Table of Contents

2007

2006

464,997  
1,207,885  
338,506  
53,141  
9,414  
41,782  
108,792  

328,206 
1,111,289 
367,864 
48,889 
31,582 
24,124 
7,078 

2,224,517  

1,919,032 

278,787  
986,988  
148,794  
19,806  
75,202  
357,226  
720  
14,060,073  
507,789  
3,474  

296,562 
863,467 
148,794 
33,835 
52,238 
342,654 
720 
13,837,498 
495,118 
10,035 

16,438,859  

16,080,921 

18,663,376

17,999,953

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

BALANCE SHEETS AS OF DECEMBER 31, 2007AND 2006

(In thousands of Brazilian reais – R$) 

Liabilities and Shareholders’ Equity

Current liabilities
Accounts payable to suppliers and contractors 
Loans and financing (note 10)
Accrued payroll and related charges
Taxes payable (note 12)
Deferred taxes (note 11)
Interest on shareholders’ equity (16 (d))
Provisions for contingencies (note 15)
Services Received 
Other current liabilities 

Non Current
Long-term liabilities
Loans and financing (note 10)
Taxes payable (note 12)
Deferred taxes (note 11)
Provisions for contingencies (note 15)
Accrued pension obligation (note 13)
Other liabilities 

Shareholders’ equity (note 16)
Paid-in capital 
Capital reserve 
Revaluation reserve 
Profit reserves 

Total Liabilities & Shareholders’ Equity

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

F-5

Table of Contents

2007

2006

165,267  
742,114  
166,797  
127,735  
75,249  
680,339  
290,172  
156,987  
50,077  

144,167 
852,475 
177,705 
105,552 
76,359 
511,519 
2,294 
152,953 
78,912 

2,454,737  

2,101,936 

4,943,121  
197,635  
159,865  
655,084  
365,234  
103,694  

5,474,254 
230,440 
146,901 
655,258 
321,212 
51,470 

6,424,633  

6,879,535 

3,403,688  
124,255  
2,339,829  
3,916,234  

3,403,688 
106,690 
2,427,499 
3,080,605 

9,784,006  

9,018,482 

18,663,376

17,999,953

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

STATEMENTS OF INCOME 
FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005  
(In thousands of Brazilian reais – R$, except for earnings per share) 

Table of Contents

GROSS REVENUE FROM SALES AND SERVICES 
(Note 19)
Gross Revenue Deductions 

Net revenue from sales and services 
Cost of sales and services (note 20)

GROSS PROFIT 

OPERATING EXPENSES (Note 20)
Selling expenses 
Administrative expenses 

OPERATING INCOME BEFORE FINANCIAL AND 
FOREIGN EXCHANGE RESULTS, NET 
Financial expenses, net (note 20)
Foreign Exchange Result, net (note 20)

2007

2006

2005

6,448,211 
(477,369)

5,970,842 
(2,695,696)

5,984,012  
(456,679) 

5,527,333  
(2,616,764) 

5,356,326 
(402,963)

4,953,363 
(2,376,375)

3,275,146 

2,910,569  

2,576,988 

(639,552)
(559,190)

(719,185) 
(387,407) 

(537,831)
(349,584)

2,076,404 
(748,995)
188,038 

1,803,977  
(658,863)
95,598  

1,689,573 
(758,275)
311,271 

OPERATING PROFIT 

1,515,447 

1,240,712  

1,242,569 

NON OPERATING INCOME (EXPENSES)
Income 
Expenses 

INCOME BEFORE TAXES ON INCOME 
Income and social contribution taxes (note 11)
Current 
Deferred 

46,115 
(81,291)

(35,176)

7,810  
(58,717)

(50,907) 

9,456 
(34,877)

(25,421)

1,480,271 

1,189,805  

1,217,148 

(543,345)
111,777 

(383,123) 
7,345  

(343,426)
27,047 

INCOME BEFORE EXTRAORDINARY ITEM 
Extraordinary item, net of income and 
social contribution taxes (note 13(b))

1,048,703 

-

814,027  

(35,122) 

900,769 

(35,122)

NET INCOME

1,048,703

778,905

865,647

Earnings per share – R$(per thousand shares in 2006 and 2005)

4.60 

27.35  

30.40 

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

F-6

 
 
 
 
 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY
FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005  
(In thousands of Brazilian reais – R$)

Table of Contents

BALANCES AS OF 
JANUARY 1, 2005

Donations (note 16 (e))
Realization of 
revaluation 
reserve (note 8 (h))
Net income 
Allocation of income: 
Legal reserve (note 16 
(f))
Interest on shareholders’ 
equity (note 16 (d))
Investment reserve (note 
16 (f(ii)))
BALANCES AS OF 
DECEMBER 31, 2005

Donations (note 16 (e))
Realization of 
revaluation 
reserve (note 8 (h))
Net income 
Allocation of income: 
Legal reserve (note 16 
(f))
Interest on shareholders’ 
equity (note 16 (d))
Investment reserve (note 
16 (f(ii)))
BALANCES AS OF 
DECEMBER 31, 2006

Donations (note 16 (e))
Realization of 
revaluation 
reserve (note 8 (h))
Net income 
Allocation of income: 
Legal reserve (note 16 
(f))
Interest on shareholders’ 
equity (note 16 (d))
Investment reserve (note 
16 (f(ii)))
BALANCES AS OF 
DECEMBER 31, 2007

Paid in

capital

Capital

Revaluation

Profit reserves

Retained

reserve

reserve

Legal

Investment

earnings

Total

3,403,688

65,291

13,529 

2,619,220

171,991

1,691,398

-

7,951,588

(89,449)

13,529 

-
865,647 

89,449  
865,647  

43,282 

(43,282) 

-

(348,216) 

(348,216)

563,598  

(563,598) 

-

3,403,688

78,820

2,529,771

215,273

2,254,996

-

8,482,548

27,870 

(102,272)

27,870 

-
778,905 

102,272  
778,905  

38,946 

(38,946) 

-

(270,841) 

(270,841)

571,390  

(571,390) 

-

3,403,688

106,690

2,427,499

254,219

2,826,386

-

9,018,482

17,565 

17,565 

(87,670)

87,670  
1,048,703  

-
1,048,703 

52,435 

(52,435) 

-

(300,744) 

(300,744)

783,194  

(783,194) 

-

3,403,688

124,255

2,339,829

306,654

3,609,580

-

9,784,006

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

F-7

 
    
   
 
 
  
   
 
 
    
   
 
 
    
   
 
 
    
 
 
    
 
 
    
   
 
 
    
   
 
 
    
 
 
    
   
 
 
    
 
 
    
   
 
 
    
 
    
   
 
 
  
   
 
 
    
   
 
 
    
   
 
 
    
 
 
    
 
 
    
   
 
 
    
   
 
 
    
 
 
    
   
 
 
    
 
 
    
   
 
 
    
 
    
   
 
 
  
   
 
 
    
   
 
 
    
   
 
 
    
 
 
    
 
 
    
   
 
 
    
   
 
 
    
 
 
    
   
 
 
    
 
 
    
   
 
 
    
 
    
   
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP
STATEMENTS OF CHANGES IN FINANCIAL POSITION
FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005  
(In thousands of Brazilian reais - R$) 

2007 

2006 

2005 

Table of Contents

SOURCES OF FUNDS
From operations:
Net income 
Items not affecting working capital
Bad debt expense – Long term accounts receivable 
Depreciation and amortization 
Investments write-off 
Write-off of property, plant and equipment 
Write-off of deferred assets 
Monetary variations on long-term items 
Reversal of provision for losses with escrow deposits, net 
Provisions for contingencies 
Other provisions 
Provision for pension obligation 
Interests and monetary and foreign exchange variation on
non current liabilities:
Loans and financing 
Taxes payable 
Deferred income and social contribution taxes: 
In long-term assets 
In long-term liabilities 
Total from operations
From third parties:
Transfers from non-current assets to current assets 
Increase in non current liabilities:
Loans and financings funding 
Other increases 
Increase in property, plant and equipment by donations – work aid 
Total from third parties
Decrease in working capital
Total sources
USES OF FUNDS
Increase in long-term assets 
Capitalized amounts – property, plant and equipment 
Decrease in non current liabilities 
In non current assets
Property, plant and equipment 
Intangible 
Deferred charges 
In non current liabilities
Transfers from non current liabilities to current liabilities: 
Loans and financing 
Taxes and contributions 
Contingencies provision 
Anticipated settlement of loans and financings 
Interest on shareholders’ equity 
Increase in working capital 
Total uses
Current assets
At end of year 
At beginning of year 
Variation in current assets
Current liabilities
At end of year 
At beginning of year 

Variation in current liabilities
Increase (decrease) in working capital

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

F-8

1,048,703 

105,301 
622,549 
-
68,568 
1,276 
(15,786)
-
287,704 
155 
44,022 

(46,141)
10,197 

(14,572)
12,964 
2,124,940

351,944 

222,474 
52,069 
17,565 
644,052
47,316
2,816,308

556,140 
27,371 
-

901,598 
32,818 
-

666,757 
43,002 
287,878 
-
300,744 
-
2,816,308

2,224,517 
1,919,032 
305,485

2,454,737 
2,101,936 

352,801
(47,316)

778,905  

102,025  
642,171  
20  
54,350  
5,195  
(11,521) 
(4,421) 
75,450  
7,504  
44,654  

15,733  
15,151  

(43,834) 
13,458  

1,694,840

394,738  

706,774  
9,306  
27,870  

1,138,688
145,532
2,979,060

606,197  
27,902  
-  

886,534  
12,630  
2,789  

858,532  
40,824  
-  
272,811  
270,841  

-
2,979,060

1,919,032  
1,725,386  
193,646

2,101,936  
1,762,758  

339,178
(145,532)

865,647 

137,639 
595,981 
4,360 
19,051 
6,700 
(19,597)
-
119,577 
-
54,382 

(143,210)
21,761 

(41,549)
3,388 
1,624,130

328,548 

1,153,479 
-
13,529 
1,495,556
-
3,119,686

504,482 
24,417 
58,028 

673,489 
4,748 
106 

634,487 
37,986 
-
-
348,216 
833,727
3,119,686

1,725,386 
1,229,790 
495,596

1,762,758 
2,100,889 

(338,131)
833,727

 
 
 
 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

STATEMENTS OF CHANGES IN FINANCIAL POSITION
FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005  
(In thousands of Brazilian reais - R$) 

Table of Contents

SUMMARY

SOURCES
From operations 
From third parties 
Decrease in working capital 
Total sources

USES
Increase in non current assets 
Capitalized amounts – property, plant and equipment 
Decrease in non current liabilities 
In property, plant and equipment, deferred assets and intangible 
Transfers from non current liabilities to current liabilities 
Anticipated settlement of loans and financings 
Shareholders - Interests on shareholders’ equity 
Increase in working capital 
TOTAL USES

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

F-9

2007 

2006 

2005 

2,124,940 
644,052 
47,316 
2,816,308

556,140 
27,371 
-
934,416 
997,637 
-
300,744 
-
2,816,308

1,694,840  
1,138,688  
145,532  

2,979,060

606,197  
27,902  
-  
901,953  
899,356  
272,811  
270,841  
-  

2,979,060

1,624,130 
1,495,556 
-
3,119,686

504,482 
24,417 
58,028 
678,343 
672,473 
-
348,216 
833,727 
3,119,686

 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

1. OPERATIONS  

The Company is a mixed-capital company headquartered in São Paulo, controlled by the São Paulo State Government. The Company is engaged in
the  provision  of  basic  and  environmental  sanitation  services,  and  supplies  treated  water  on  a  wholesale  basis  and  provides  sewage  treatment
services to other six municipalities of the Greater São Paulo Metropolitan Area.  

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 company intends to expand it basic operations and, at the
same time, become an environmental solutions company. 

At the end of 2007, the company operates water and sewage services to 366 municipalities, although, due to judicial orders, we had temporarily
stopped operating three of them (Araçoiaba da Serra, Cajobi e Monte Alto). We have recently resumed providing service to Monte Alto. As for the
other  two  muncipalities  (Araçoiaba  da  Serra  and  Cajobi)  we  are  still  in  litigation.  Even  if  we  cannot  resume  providing  services  to  these
municipalities, there will be no major impact on us as: i) revenue from these operations account for less than 0,2% of our total revenues, and ii) we
will continue to be entitled to indemnities related to the assets invested in the municipalities and not yet amortized. Of the 174 municipalities whose
concessions have expired, 124 approved a municipal law that authorizes the signature of a program contract with SABESP. One hundred and six of
these municipalities have already signed the program contracts (for the definition see note 24) and the remainder is in the final stage for formalizing
the program contracts procedure.  

In December 2008, 104 concession contracts will be expired or be under negotiation with the respective municipalities. Between 2009 and 2034,
117 concession contracts will expire in addition to the remaining concession contracts with legal relationships with indefinite term for which Law
11445, which regulated the sanitation services in Brazil, determines that the parties can sign an agreement by 2010. Management believes that all
these  legal  situations  will  result  in  new  contracts  or  extensions,  and  does  not  consider  the  risk  related  to  the  discontinuity  in  the  provision  of
municipal water and sewage services. As of December 31, 2007, the book value of property, plant and equipment of the concessions in final stage
of formalization or terminating in 2008 was R$2.02 billion and revenues from these concessions for the year ended December 31, 2007 was R$935
million.  

In  the  municipality  of  Santos,  in  the  Baixada  Santista,  which  has  a  significant  population,  the  Company  operates  supported  by  a  public
authorization deed, a similar situation in other municipalities in that region and in Ribeira valley, where the Company started to operate after the
merger of the companies that formed it. 

On January 5, 2007, Law 11445 was enacted, establishing the basic sanitation regulatory framework, providing for the nationwide guidelines and
basic principles for the provision of such services, such as social control, transparency, the integration authority of sanitation infrastructures, water
resources management, an the articulation between industry policies and public policies for urban and regional development, housing, suppression
of  poverty,  promotion  of  health  and  environmental  protection,  and  other  related  issues.  The  regulatory  framework  also  aims  at  efficiently
improving  quality  of  living  and  economic  sustainability,  allowing  for  the  adoption  of  gradual  and  progressive  solutions  consistent  with  users’
payment ability.  

As benefits for the Company, this law: 

• Clarifies the conditions for transitional services, by amending Article 42 of the Concession Law to determine that the Concession Grantor has to
perform evaluations, surveys and payment due compensation before retaking the concession assets, as a condition for the validity of the subsequent
municipal actions;  

• Significantly reduces the possibility of success in legal actions for retaking services suddenly and without paying due compensation;  

• Aims at improving the attainment of public interests related to the environment and supports the state planning of services, without disregarding
local peculiarities, taking into consideration the need for the Municipalities to present sanitation plans that are compatible with the hydrographic
basin plans;  

• Imposes the creation of a regulatory agency and the issue of regulations that increase transparency and efficiency in services inspections, as well
as in the provision of services itself, safeguarding and converging the different interests of consumers and contractors;  

•  Another  important  change  in  the  regulatory  environment  in  2007  was  the  creation  of  the  São  Paulo  State  Sanitation  and  Power  Regulatory
Agency (ARSESP). 

F-10 

Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The Company’s shares have been listed in the Novo Mercado (New Market) segment of the BOVESPA (São Paulo Stock Exchange) since April
2002, and in the New York Stock Exchange (NYSE) as ADRs since May 2002.  

The information on concession area, number of municipalities, water and sewage volumes, and other related data disclosed in this report that are
not derived from the financial statements is not audited by the independent auditors.  

2. PRESENTATION OF THE FINANCIAL STATEMENTS 

(a) Presentation of financial statements  

The  Company’s  statutory  financial  statements,  which  are  used  as  the  basis  for  determining  income  taxes  and  mandatory  minimum  dividend
calculations, have been prepared in accordance with accounting practices adopted in Brazil, which are based on the Brazilian Corporate Law (Law
No. 6,404/76, as amended), the rules and regulations of the Brazilian Securities Commission ("CVM") and the accounting standards issued by the
Brazilian  Institute  of  Independent  Auditors  (“IBRACON”),  collectively  referred  to  hereinafter  as  “Corporate  Law”  or  “BR  CL”.  The  financial 
statements prepared in accordance with Corporate Law have not been indexed for inflation after 1995. 

(b) Inflation accounting under BR CL  

BR CL provided a simplified methodology for accounting for the effects of inflation through 1995. This method consisted of restating permanent
assets  (property,  plant  and  equipment,  investments  and  deferred  charges)  and  shareholders’  equity  accounts  using  indices  mandated  by  the 
Brazilian Federal Government. The net effect of these restatements was credited or charged to the statement of income. 

3. SIGNIFICANT ACCOUNTING PRACTICES 

The  Company’s  accounting  practices,  which  are  based  on  the  accrual  concept,  comply  with  the  Corporate  Law  but  differ  in  certain  significant
respects from accounting principles generally accepted in the United States of America (“US GAAP”). See Note 26 for further discussion of the 
differences  between  BR  CL  and  US  GAAP  and  the  reconciliation  of  shareholders’  equity  and  net  income  between  BR  CL  and  US  GAAP. 
Additional disclosure has been included in the notes to the financial statements to comply with the regulations of the U.S. Securities and Exchange
Commission (the “SEC”) for foreign registrants. 

(a) Revenues from sales and services  

Revenues  from  water  and  sewage  services  are  recognized  as  water  is  consumed  or  as  services  are  provided.  Revenues  from  water  and  sewer
services rendered, but not billed, are recorded as unbilled customer accounts receivable based on monthly estimates, in order to match such revenue
with costs incurred.  

(b) Marketing costs  

Marketing  costs  are  recorded  in  administrative  expenses.  Marketing  costs  were  R$  16,431,  R$  11,895  and  R$  17,861  for  the  years  ended  on
December 31, 2007, 2006 and 2005, respectively. No marketing costs were deferred at December 31, 2007, 2006 and 2005.  

(c) Financial income and expenses 

Financial  income  and  expense  are  primarily  comprised  of  interest,  monetary  and  exchange  variations  on  loans  and  financing,  contingencies,
accounts receivable and financial investments, and are calculated and reported on the accrual basis of accounting. 

(d) Income tax and social contribution 

Income and social contribution taxes (a federally mandated tax based on income) are accrued on taxable results. 

F-11 

Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Income tax is calculated at the rate of 15%, plus a 10% surtax, and social contribution at the rate of 9%. Those rates are reported on an accrual
basis. 

Deferred taxes are calculated based on taxable or deductible amounts in future years and are recognized to the extent that realization is believed to
be probable. 

As permitted by the “CVM”, the Company opted not to recognize the deferred income and social contribution taxes on the revaluation reserve of
property, plant and equipment recorded up to 1991. 

(e) Other income and expenses  

Other income and expenses are recorded on an accrual basis. 

(f) Cash and cash equivalents 

Cash and cash equivalents comprise primarily bank deposits and financial investments and are carried at cost plus accrued interest, if applicable.
Financial investments denominated in Reais have a ready market, and are mostly represented by Bank Deposit Certificates - CDB’s in 2007 and 
2006  and  by  Financial  Investment  Funds  -  “FIF’s”  in  2005.  The  Company  is  required  by  law  to  invest  excess  cash  with  financial  institutions
controlled by the State Government (see note 6). 

(g) Customer accounts receivable and allowance for doubtful accounts 

Customer accounts receivable generally do not accrue interest or indexation charges or penalties, except for refinanced agreements.  

The Company records an allowance for doubtful accounts for receivable balances in an amount that is deemed by management to be sufficient to
cover probable losses in accounts receivable, based on the analysis of the history of receipts. Amounts in excess of R$ 5 and overdue for more than
360 days and in excess of R$ 30 and overdue for more than 360 days, which are under judicial collection proceedings, are provisioned. Accounts
receivable balances under R$ 5 and overdue more than 180 days are written off through a direct charge to income. 

The Company has not recorded an allowance for doubtful accounts for any amounts due to it by the State Government or entities controlled by the
State Government, since it does not expect to incur losses from such balances. 

(h) Inventories 

Inventories  of  materials  used  in  operations  and  in  the  maintenance  of  the  Company’s  water  and  sewage  systems  are  stated  at  lower  of  average 
acquisition  cost  or  realizable  value  and  are  classified  in  current  assets.  Inventories  for  capital  projects  are  classified  under  property,  plant  and
equipment and are stated at the average acquisition cost. 

(i) Other current assets and long-term receivables 

Other current assets and long-term receivables are stated at the lower of acquisition cost or realization value, plus accrued interest, when applicable.

(j) Property, plant & equipment 

Property, plant and equipment are stated at amounts established by independent technical appraisals, plus price-level restatements from the date of
the appraisals to 1995. Revaluation increments arising from revaluing assets to appraised values are recorded in the revaluation reserve component
of  shareholders'  equity  and  subsequently  transferred  from  the  reserve  to  retained  earnings  as  the  related  assets  are  depreciated,  sold  or  upon
disposal.  The  price-level  restatement  adjustments  were  based  on  official  inflation  indices  published  by  the  federal  government.  The  Company 
believes  that  the  distortion  caused  by  indices  which  understated  the  independently  measured  inflation  rate  have  been  mitigated  by  recording
revaluation increments. 

F-12 

Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The  revaluation  of  property,  plant  and  equipment  items,  carried  out  in  two  separate  stages  in  1990  and  1991,  was  based  on  an  appraisal  report
issued  by  independent  experts.  The  referred  revaluation  was  recorded  with  a  corresponding  credit  to  the  “Revaluation  Reserve”  account  in 
Shareholder’s  Equity,  and  is  realized  through  depreciation,  sale,  and  disposal  of  the  respective  assets,  with  a  corresponding  entry  to  “Retained
Earnings”. 

Construction-in-progress  is  recorded  at  cost  and  is  primarily  related  to  construction  projects  under  contract  with  third  parties.  For  long-term 
projects,  the  Company  capitalizes  these  projects  once  the  Company’s  engineering  department  approves  that  the  project  milestones  have  been
achieved and the Company takes delivery of the assets. 

Depreciation  

Depreciation  of  property,  plant  and  equipment,  is  recorded  using  the  straight-line  method  based  on  the  estimated  useful  lives  of  the  underlying 
assets. The principal depreciation rates are detailed in Note 8.  

Capitalization of interest 

Consistent with the requirements of accounting regulations for Brazilian utility companies, up to 1985, interest was capitalized at 12% per annum
on  construction-in-progress.  Interest  capitalized  which  exceeded  interest  expense  on  loans  obtained  to  finance  construction-in-progress  was 
recorded in a capital reserve directly in shareholders' equity. Up to 1995, BR CL did not require the capitalization of interest costs incurred during
the construction period as part of the cost of the related property, plant and equipment. However, as permitted by the Brazilian Water and Sewage
Plan (Plano Nacional de Saneamento Básico - PLANASA), the Company capitalized interest on construction in progress through 1988. No interest
was  capitalized  from  1989  to  1995.  Interest  was  again  capitalized  beginning  in  1996,  following  changes  in  the  CVM  requirements  in  1996.
Beginning in 1999, the Company has capitalized indexation charges on the real - denominated loans and financing and the foreign exchange effects 
on  foreign  currency  loans  and  financing.  The  Company  capitalizes  interest  incurred  on  borrowings  to  the  extent  that  borrowings  do  not  exceed
construction-in-progress, which is recorded as a reduction of interest expense.  

Interest  capitalized  is  depreciated  with  the  cost  of  the  asset,  once  the  related  asset  becomes  operational.  Through  December  31,  1998,  but  not
thereafter, such depreciation of capitalized interest was deductible for purposes of determining taxes on income.  

Repairs and maintenance  

Improvements to existing property are capitalized, while costs of general maintenance and repairs are expensed as incurred. Materials allocated to
specific projects are added to construction-in-progress. 

Impairment 

The  Company  reviews  long-lived  assets,  primarily  buildings  and  water  and  sewage  systems,  including  property,  plant  and  equipment  and
concession  assets,  to  be  held  and  used  in  the  business,  for  the  purpose  of  determining  and  measuring  impairment  on  a  recurring  basis  or  when
events or changes in circumstances indicate that the carrying value of an asset or group of assets may not be recoverable. The Company assesses
impairment on the basis of the projected recovery of depreciation charges through results of operations. The carrying value of assets or groups of
assets is written down to realizable value if and when appropriate. 

Donations  

Donations of property, plant and equipment received from third parties and government entities to enable the Company to provide water supply and
sewage services are recorded in property, plant and equipment with a corresponding entry to capital reserve.  

(k) Intangible assets (concessions)  

Beginning in 1999, acquisitions of concession assets and concession rights from third parties have been accounted for at fair values, as determined
in technical appraisal reports. Accordingly, the purchase price, plus direct costs of acquisition, is allocated to assets acquired and liabilities assumed
based  upon  their  estimated  fair  values  at  the  date  of  acquisition.  These  concessions  are  recorded  as  concession  assets  acquired,  included  as
intangible assets in the balance sheets.  

F-13 

Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Concession rights are amortized on a straight-line basis over the estimated future periods to be benefited, not to exceed the contractual term of the
concession. The straight-line method of depreciation is modified, when applicable, to avoid the backloading of charges in later years by estimating
future disbursement commitments to meet the Company’s concession obligations.  

(l) Deferred charges 

Deferred charges are comprised primarily of deferred project costs and technical studies, wich are being amortized using the straight-line method 
over 5 years from the date when benefits start to be generated. 

The company also evaluates the realization of each project (quartely) to make sure if any amount needs to be disposed.  

(m) Loans and Financing 

Loans and financing are adjusted by indexation charges and foreign exchange variations and include accruals for related interest expenses up to
closing date. Loans and financing denominated in foreign currencies are translated to reais using the exchange rate in effect at the balance sheet
date. The resulting foreign currency exchange adjustments are recognized as incurred in financial income (expense), net. 

(n) Salaries and payroll charges 

Salaries and other payroll charges, including provisions for vacation pay, 13th salary and complementary payments agreed upon through collective
bargaining agreements, added by the corresponding payroll charges, are recorded on an accrual basis. 

(o) Profit sharing 

The profit sharing provisions are recorded on an accrual basis in operating expenses.  

(p) Provision for Contingencies 

Provisions for contingencies are recorded at the estimated amounts to cover probable losses related to labor, tax, civil, commercial, environmental
and other claims and lawsuits, at administrative and court levels, when such losses are considered probable by the Company’s legal advisors and
are estimateable by management. Provisions for contingencies balances are disclosed net of the related escrow deposits. 

(q) Environmental costs 

Costs  relating  to  ongoing  environmental  programs  are  expensed,  as  incurred.  Ongoing  programs  are  designed  to  minimize  the  environmental
impact  of  operations  and  to  manage  the  environmental  risks  inherent  to  the  Company’s  activities.  Provisions  for  contingent  losses  related  to 
environmental claims are recorded when they are considered to be probable and reasonably estimated by Management.  

(r) Pension obligation 

The Company sponsors a private defined benefit pension plan, which is operated and administered by Fundação SABESP de Seguridade Social
(“SABESPREV”). CVM resolution 371 of December 13, 2000 determines the recognition of actuarial liabilities exceeding to the plan assets. As
permitted, the Company elected to recognize the transition obligation as of the date of adoption in earnings on a straight-line basis over five years 
beginning January 1, 2002. 

F-14 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(s) Interest on shareholders’ equity  

Brazilian corporations are permitted to deduct for tax purposes interest on shareholders’ equity, which is a distribution similar to a dividend. For
financial  reporting  purposes,  interest  on  shareholders’  equity  is  recorded  as  a  deduction  directly  from  unappropriated  retained  earnings.  This
interest has been recorded in accordance with Law 9249/95, for tax deductibility purposes, limited to the daily pro-rata variation of the Long-Term 
Interest  Rate (“TJLP”).  Withholding  taxes  with  respect  to the  payment of  interest on  shareholders’  equity is generally withheld and paid  by the 
Company on behalf of shareholders (see note 16). 

(t) Use of estimates 

The preparation of financial statements requires management to make estimates based on certain assumptions that affect the reported amounts of
assets and liabilities and the reported amounts or revenues and expenses for the reporting periods. Actual results could differ from those estimates. 

(u) Earnings per share 

Earnings per share are calculated based on the number of shares outstanding at the balance sheet date. 

4. CASH AND CASH EQUIVALENTS 

Cash and banks 
Financial investments 

5. CUSTOMER ACCOUNTS RECEIVABLE 

The following summarizes customer accounts receivable balances at December 31: 

(a) Private-sector customers 
General customers and special customers (i) (ii)
Agreements (iii)

Government Entities: 
Municipal 
Federal 
Agreements 

Wholesale customers - municipal authorities: (iv)
Guarulhos 
Mauá 
Mogi das Cruzes 
Santo André 
São Caetano do Sul 
Diadema 
Total wholesale customers - municipal authorities 

Unbilled amounts 
Subtotal 
Allowance for doubtful accounts 
Total 
Current portion 
Non current portion (v)

F-15 

2007 

2006 

72,833  
392,164  
464,997  

80,118 
248,088 
328,206 

2007 

2006 

704,626  
202,037  
906,663  

524,519  
25,792  
81,490  
631,801  

383,911  
135,272  
12,549  
326,549  
2,971  
99,932  
961,184  

301,695  
2,801,343  
(1,314,671) 
1,486,672  
1,207,885  
278,787  

667,143 
179,353 
846,496 

446,495 
23,524 
85,909 
555,928 

340,534 
115,189 
4,139 
289,592 
2,932 
85,620 
838,006 

290,578 
2,531,008 
(1,123,157)
1,407,851 
1,111,289 
296,562 

 
 
 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(i) General customers - residential and small and medium-sized businesses. 

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

(iii) Agreements - renegotiation of past due debts into installments, added by monetary variation and interests, with maturity dates between 6 and
12 months, except for agreements with municipal City Halls, with maturity dates up to 2011. 

(iv) Wholesale customers - municipal authorities - Accounts receivable from wholesale customers relate to the wholesale of treated water to certain
municipalities, which are responsible for distribution, billing and collection with the final customers, some of these municipalities judicially contest
the tariffs charged by SABESP and do not pay the amounts in dispute. The past due amouts are classified as non current assets, as demonstrated
below: 

Balance in the beginning of year 
Billings for services provided 
Collections -current year services 
Collections - prior years’ services 
Balance at end of year 
Current portion 
Non current portion 

2007 

2006 

838,006  
292,041  
(141,451) 
(27,412) 
961,184  
50,769  
910,415  

727,892 
265,298 
(133,926)
(21,258)
838,006 
16,170 
821,836 

(v)  The  non  current  portion  comprises  past  due  and  renegotiated  accounts  receivable  with  customers  and  past  due  amounts  from  the  wholesale
supply to municipal authorities, and it is recorded net of the allowance for doubtful accounts. 

(b) Customer accounts receivable aging summary 

Current 
Past due: 
Up to 30 days
From 31 to 60 days 
From 61 to 90 days 
From 91 to 120 days
From 121 to 180 days 
From 181 to 360 days 
For more than 360 days
Total 

2007 

2006 

783,946  

705,863 

148,498  
81,244  
55,821  
46,202  
81,313  
151,993  
1,452,326  
2,801,343  

247,970 
72,064 
48,962 
40,540 
71,101 
186,387 
1,158,121 
2,531,008 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(c) Allowance for doubtful accounts 

(i) Changes in the allowance for doubtful accounts are as follows: 

Balance at beginning of year 

Private-sector customers/government entities 
Wholesale customers 

Additions in the fiscal year 
Balance at end of year 

Current portion 
Long-term portion 

(ii) In the income 

Table of Contents

2007 

1,123,157  

86,213  
105,301  

191,514  
1,314,671  

587,713  
726,958  

2006 

920,736 

87,160 
115,261 

202,421 
1,123,157 

501,500 
621,657 

Bad debt included as part of selling expenses for the years ended December 31 was as follows:  

Provisions (over five thousand reais)
Recoveries (over five thousand reais)
Direct write-offs (less than five thousand reais and adjustment (e))
Recoveries (less than five thousand reais)
Total bad debt expenses (note 20)

2007 

2006 

2005 

(228,367)
36,853 
(232,791)
100,966 
(323,339)

(241,050) 
38,629  
(289,191) 
79,694  
(411,918) 

(207,233)
46,137 
(177,138)
82,942 
(255,292)

A number of wholesale customers have been contesting certain tariffs since mid-1998. As a result, some municipalities are currently not paying the 
Company’s invoices in full or on a timely basis. In addition, some governmental entities located in municipalities the Company serves are also not
paying on a regular basis. While the Company continues to enter into negotiations with municipalities to reschedule the related accounts receivable
and continues to file legal proceedings against municipalities to collect overdue amounts, in some cases, the Brazilian courts have required that the
Company continue to provide water on a wholesale basis to municipalities, even if they fail to pay the Company’s invoices. 

The Company recorded direct charges for probable losses in accounts receivable incurred in 2007, in the amount of R$ 323,339, being R$ 131,825
(net of recoveries) written-off from accounts receivable (in 2006 - R$ 115,739) directly to the income for the year, recorded in “Selling Expenses”. 
These losses amounted to R$411,918 and R$ 255,292 in 2006 and in 2005, respectively. 

Management believes that the allowance for doubtful accounts is sufficient to absorb probable losses in customer accounts receivable. 

(d) Unbilled amounts 

Unbilled amounts represent water and sewage services provided but not yet billed, which are estimated from the last measurement date to month-
end based on prior month’s billings. 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

6. TRANSACTIONS WITH RELATED PARTIES 

The Company is party to a number of transactions with its majority shareholder, the State Government, and its related agencies.

(a) Receivable, payable and revenues and expenses with Shareholder 

Receivable, from Shareholder
Current: 
Water and sewage services (i)
GESP Agreement (iii) (iv)
Total current 

Long-term: 
Water and sewage services - GESP Agreement 
Reimbursement for pension benefits paid (ii)
Gross long-term receivable from shareholder 
Total receivable from shareholder 

Water and sewage services 
Reimbursement for pension benefits 

Payble to Shareholder
Interest on Shareholders’ Equity 
Revenue and expenses
Operating Revenues 
Gross revenue from sales and services 
Water sales 
Sewage services 
Collections 

Financial revenues 

2007 

2006 

311,528  
26,978  
338,506  

308,030 
59,834 
367,864 

107,911  
879,077  
986,988  
1,325,494  

446,417  
879,077  
1,325,494  

89,012 
774,455 
863,467 
1,231,331 

456,876 
774,455 
1,231,331 

551,974  

396,361 

185,976  
149,853  
(326,065)

175,124 
146,074 
(199,375)

51,469  

50,882 

The Company has not recorded an allowance for doubtful accounts for any amounts due from the State government or entities controlled by the
State Government, since it does not expect losses on such receivables. 

(i) Water and sewage services 

The Company provides water and sewage services to the State Government of São Paulo and its related agencies under terms and conditions that
management believes are equal to those with third parties, except for the settlement of amounts outstanding, as described further below in items
(iii) and (iv). 

(ii) Reimbursement for pension and benefits paid. 

Reimbursement for pension and benefits paid represents supplementary pension and leave benefit paid by the Company to former employees of
State  Government-owned  companies  which  merged  to  form  SABESP.  These  amounts  should  be  reimbursed  to  the  Company  by  the  State
Government of São Paulo, as the primary obligor, in conformity with Law No. 200/74. At December 31, 2007 and 2006, 2,635 and 2,670 retirees,
respectively, received supplementary pension payments, for which the Company paid R$ 104,622 and R$ 101,740 at December 31, 2007 and 2006,
respectively.  There  were  144  active  employees  at  December  31,  2007,  who  will  be  entitled  to  such  benefits  at  the  time  of  their  retirement,  as
compared to 163 at December 31, 2006. 

On January 2004, the payments that supplement retirement and pension benefits were transferred to the State Treasury Secretariat and would be
made in accordance with the calculation criteria determined by the State Attorney’s Office (PGE). As a result of a legal decision, the responsibility 
for the payments is of SABESP again, as they were initially.  

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(iii) GESP Agreement 

On December 11, 2001, the Company entered into an agreement with the State of São Paulo Government, through the State Department of Finance
and the State Department of Water and Energy - “DAEE”, having the State Secretariat of Sanitation and Energy as intervening party, under which
the State Government, by force of Law no 200/74, acknowledged to be responsible for the benefit arising out of supplementation of retirement and
pension payments and agreed to pay amounts it owed to the Company in respect of water and sewage services. The value to date of the Agreement
was R$ 678,830, of which R$ 320,623 refer to supplemental retirement and pension benefits in the period from March 1986 until November 2001,
and R$ 358,207 refer to water supply and sewage collection services invoiced and due from 1985 until December 1, 2001. The agreement foresees
the equalizing of the balance of our accounts receivable with the use of dividends, when applicable. 

Considering the strategic importance of Taiacupeba, Jundiaí, Biritiba, Paraitinga and Ponte Nova reservoirs, for ensuring the volume of water of
the  Alto  Tietê  System  to  be  maintained,  it  was  agreed  that  DAEE  would  transfer  these  properties  to  the  Company,  with  the  fair  value  of  these
transferred  assets  used  to  reduce  the  amounts  owed  to  the  Company.  The  reservoirs  valuation  laud  was  approved  by  the  Company’s  Board  of
Directors, in the amount of 300,880(valuation base- June 2002), however, there is a judicial claim, related to the transfer of these reservoirs. The
Company’s  legal  counsels  opinion  is  that  there  is  a  probable  risk  of  lose  this  claim,  what  woud  hinder  the  reservoirs  transfer  as  as  partial
amortization of the accounts receivables.  

Based  on  Official  Notice  No.  53/2005  of  the  State  Capital  Defense  Council  (CODEC),  dated  March  21,  2005,  negotiations  are  still  ongoing
between the Company and the State Government with a view to restatement of the debt for supplemental retirement and pension benefits, under the
terms defined in the December 2001 agreement, including amounts due after November 2001. The Company has retained Fundação Instituto de
Pesquisas Contábeis, Atuariais e Financeiras, USP – “FIPECAFI” to validate the actual values to be reimbursed by the State Government, taking 
into account the legal advice provided by the General Office of the State Attorney.  

On  March  26,  2008,  the  State  of  São  Paulo,  through  the  Treasury  Secretariat  and  the  State  Secretariat  for  Sanitation  and  Energy,  and  SABESP
entered into a Commitment Agreement for the settlement of outstanding debts related to the reimbursement of pension benefits.  

Even though the State acknowledges its debts related to the pension benefits, the State disagrees with the criteria adopted by SABESP to grant and
pay  the  benefits,  based  on  the  legal  opinions  issued  by  the  State  Attorney  General,  which  restrict  State  actions  and  prevent  the  voluntary
reimbursement of all amounts paid by SABESP. 

From SABESP’s standpoint, the criteria adopted in the past to grant and pay pension benefits were correct, as they were based on specific State
authorizations or then effective legal opinions.  

The prolongation of the disputes between the State and SABESP is the main reason why the parties did not manage until now to fully implement
the provisions of the São Paulo State Government Agreement.  

Based  on  preliminary  information  gathered,  under  the  calculation  and  eligibility  criteria  agreed  by  the  State,  SABESP  estimates  a  Indisputable
Reimbursement  of  approximately  R$936  million,  which  comprises  monetary  adjustment  based  on  the  IPCA  (Extended  Consumer  Price  Index)
(R$605.3  million  in  notional  amounts).  The  amount  paid  by  SABESP  was  R$1,422.8  million,  adjusted  based  on  the  IPCA  (R$879  million  in
notional amounts).  

The parties agree that this discrepancy should not represent an obstacle to the implementation of the commitments made in the São Paulo State
Government Agreement. 

Fipecafi is validating the Indisputable Reimbursement and the Controversial Amount, estimated by SABESP, as well as other firms are performing
a new evaluation of the Reservoirs that might be transferred to SABESP as amortization of the reimbursement payable by the State. The amount of
the Indisputable Reimbursement shall be added of the monthly variation of the IPCA from the month of each disbursement made by SABESP to
the month the determination work is completed.  

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Once  the  amount  of  the  Indisputable  Reimbursement  is  determined  and  validated  by  the  parties,  and  the  new  evaluation  of  the  reservoirs  is
concluded,  the  State  shall  initiate  the  30-day  period  for  payment  of  the  Indisputable  Reimbursement,  as  provided  for  by  the  São  Paulo  State
Government Agreement, in 114 monthly, consecutive installments, including the annual IPCA variation, plus interest of 6% per year.  

The State confirms it is willing to assume the responsibility for the processing and direct payment of the benefits if SABESP succeeds in reversing
the court decision that requires the Company to keep paying the pension benefits, under the current terms and conditions. While the current court
decision is not overruled, the State shall transfer to SABESP the cash required to pay the indisputable amount of the monthly due benefits.  

SABESP shall not waive the receivables from the State to which the Company considers itself to be legally entitled. Accordingly, it will take all
possible actions to resolve the issue at all technical and court levels. Should this dispute persist, the Company will take all the necessary actions to
protect the Company’s interests.  

Based  on  preliminary  calculation,  considering  the  reimbursement  of  the  Indisputable  Amount  by  the  São  Paulo  State  Government,  estimated  at
approximately R$936 million, representing 66% of the amount paid by SABESP and considering, among other aspects, the need to recognize an
actuarial liability to reflect the right to benefits that will be paid in the future, the estimated impact on the Company’s results of operations as of
December 31, 2007 would be R$513 million, approximately.  

No amounts were accrued for loss or the benefits that will be paid in the future as the likelihood of receiving the outstanding amounts and resolving
the existing disputed favorably to the Company is highly probable. This expectation is based, in addition to an internal analysis by the Company’s 
staff, on an outside legal opinion, which concludes, after carefully analyzing the matter, that the likelihood of a favorable outcome in a possible
recourse action filed by the Company is highly probable. According to this opinion, the circumstances under which the payment of the benefits was
made imposes to the São Paulo State Government the duty of reimbursing the Company, since the Company, as the employer, was merely a co-
obligator. The analysis of the main disputes allow us to conclude that the criteria adopted by the Company in the past to grant and pay the benefits
are reasonable, as they were built based on specific guidance of the São Paulo State Government.  

The following summarizes activity with respect to amounts due from the State Government related to the reimbursement of pension and retirement
benefits: 

Receivable from shareholder – reimbursement for pension benefits paid: 
Balance at beginning of the year 
Payments made on behalf of State Government 
Balance at end of the year 

       December 31, 

2007 

2006 

   774,455 
   104,622 
   879,077 

672,715 
101,740 
774,455 

The balances for water and sewage services were included in the 1st and 2 nd amendment, as described below (iv).

(iv) First Amendment to GESP Agreement 

On  March  22,  2004,  the  Company  and  the  State  of  São  Paulo  Government  amended  the  terms  of  the  original  GESP  Agreement,  thereby  (1)
consolidating  and  acknowledging  amounts  due  from  the  State  Government  for  water  and  sewage  services  through  February  2004,  monetarily
adjusted through February 2004; (2) formally providing for the offset of amounts due from the State Government against interest on shareholders’s 
equity declared by the Company and any other debt owed to the State Government at December 31, 2003, which were monetarily adjusted through
February 2004; and (3) defining the payment terms of the remaining obligations of the State Government for water and sewage services. 

Under the terms of the Amendment, the State Government acknowledged amounts due to the Company for water and sewage services provided
through February 2004, in the amount of R$ 581,779, including monetary adjustments based on the Reference Rate (“TR”) at the end of each fiscal 
year through February 2004. The Company acknowledged amounts due to the State Government with respect to interest on shareholders’ equity of
R$ 518,732, including (1) amounts declared and paid for years prior to 2003 (R$ 126,967), (2) monetary adjustments on these amounts based on
the annual change in the Consumer Prices Index (IPC/FIPE) through February 2004 (R$ 31,098); and (3) amounts declared and paid relating to
2003 (R$ 360,667). 

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Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The  Company  and  the  State  Government  agreed  to  the  reciprocal  offset  of  R$  404,889  (monetarily  adjusted  through  February  2004).  The
remaining obligation of R$ 176,890 at February 29, 2004 will be payable in monthly installments from May 2005 through April 2009, which will
be subject to monthly monetary adjustment at the Expanded Consumer Price Index (IPCA/IBGE), plus 0.5% . 

In  2005  the  offset  of  R$  105,520  with  interest  on  shareholders’  equity  from  2003  occurred,  as  forecasted.  In  2006,  the  Company  received  the
amount of R$ 47,228 corresponding to the installments from January through October. 

(v) Second Amendment to the Gesp Agreement  

On December 28, 2007, the Company and the State Government, by means of the Treasury Secretariat, signed the second amendment to the terms
of the original Gesp Agreement, (1) agreeing upon the payment in installments of the remaining balance of the First Amendment, amounting to
R$133,709 (on November 30, 2007), to be paid in 60 monthly and consecutive installments of the same amount, the first of which falling due on
January 2, 2008. The amount of the installments will be monetarily restated in accordance with the variation of the IPCA-IBGE, plus interest of
0.5% per month. The balance of this agreement, the installments of which have been monthly paid, includes the amount of R$46,244, which the
State does not recognize as due. SABESP’s understanding differs from that of the State regarding this amount and does admit the review of these
previously agreed-upon amounts without the supported and unequivocal demonstration of the lack of relation between the amounts presented by
SABESP and the services effectively provided. For this reason the Company understands that the recognition of an allowance for losses regarding
these  amounts  is  not  necessary  (pursuant  to  item  VII,  of  the  Recitals,  of  the  Second  Amendment  to  the  Recognition  Instrument,  Payment
Commitment and Other Covenants between the State of São Paulo and SABESP) (2) with respect to the accounts past due and unpaid in the period
between March 2004 and October 2007, arising from the provision of water supply and sewage collection services in the amount of R$256,608,
R$231,407  has  been  received  and  R$25,201  is  pending  confirmation  of  receipt.  These  amounts  are  being  jointly  analyzed  by  SABESP  and  the
representatives of the many State departments. To date, differences regarding the debtor but not the amount of the debt have been identified. In the
event  of  the  reclassification  of  the  entity  responsible  for  paying  the  account,  SABESP  will  transfer  the  charge  to  the  respective  Entity.  The
Company  has  not  recognized  an  allowance  for  losses  in  this  amount  as  it  understands  that  the  differences  are  substantially  related  to  the
identification of the debtor. (3) The interest on shareholders’ equity due by SABESP to the State, related to the period between March 2004 and
December 2006, in the amount of R$400,823, restated between June 2007 and November 2007, based on the Selic (central Bank overnight rate),
was paid in the period between January and March 2008. (4) The State and SABESP agreed on immediately resuming the compliance with their
mutual  obligations  under  new  assumptions:  (a)  implementation  of  an  electronic  account  management  system  to  facilitate  and  speed  up  the
monitoring of payment processes and budget management procedures; (b) structuring of the Rational Water Use Program (PURA) to rationalize the
consumption of water and the amount of the water and sewage bills under the responsibility of the State; (c) establishment, by the State, of criteria
for budgeting so as to avoid the reallocation of amounts to a specific water and sewage accounts as from 2008; (d) possibility of registering state
bodies and entities in a delinquency system or reference file; (e) possibility of interrupting water supply to state bodies and entities in the case of
nonpayment of water and sewage bills. 

Management believes that the amounts owed by the State Government shall be received and it is not estimated that losses will be incurred with
such accounts receivable. 

The Amendments to the GESP Agreement does not provide for amounts owed by the State Government for supplementary retirement and pension
plan benefits, paid by the Company on behalf of the State Government. Such amounts continue to be subject to the terms of the original GESP
Agreement.  

Approximately 70% of the billing from November 2007 and February 2008 has already been paid by the State Government. The remaining amount
is being analyzed and will be received as soon as the state bodies conclude the checking.  

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Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(b) Cash and cash equivalents 

The  Company’s  balance  of  cash  and  short-term  investments  accounts  with  financial  institutions  controlled  by  the  State  Government  was  R$
421,630 and R$ 287,999 at December 31, 2007 and 2006, respectively. The financial income from such investments was R$ 51,469, R$ 50,882 and
R$ 32,293 in fiscal years ended December 31, 2007, 2006 and 2005, respectively. The Company must, by force of State Decree, invest its excess
resources together with financial institutions controlled by the State. 

(c) Arrangements to use reservoirs 

The Company uses the Guarapiranga and Billings reservoirs and a portion of some of the reservoirs of the Alto Tietê System, which are owned by
the  State  Department  of  Water  and  Energy  (DAEE).  The  Company  does  not  pay  any  fees  with  respect  to  the  use  of  these  reservoirs,  but  is
responsible for maintaining and funding the operating costs of these reservoirs. The State of São Paulo does not incur such costs on behalf of the
Company. In the event these facilities had not been made available to the Company, it would have had to obtain water from more distant sources
which would have been more costly. 

As part of these arrangements, the Company funded approximately R$97,115 of costs for the 1992 and 1997 projects. A portion of these project
costs  were  funded  by  the  State  Government,  through  DAEE.  The  agreements  included  the  construction  of  ducts,  tunnels  and  other  facilities  to
interconnect the Tietê River with the Biritiba and Jundiaí reservoirs and other bodies of water in exchange for the Company’s use of the reservoirs 
during a 30-year period.  

The  Company  has  the  right  to  draw  water  from  and  release  emissions  into  the  reservoirs  during  a  30-year  period  which  began  in  1997.  The 
Company capitalizes expenditures on the facilities constructed. The assets relating to the original reservoir project were placed in service in 1994
and 2002 and are being depreciated over the remaining term of the original 30 year period. The Company had recorded as part of property, plant
and equipment R$ 52,922 and R$ 55,660 of amounts capitalized with respect to these agreements, net of accumulated depreciation, at December
31, 2007 and 2006, respectively. 

(d) Contracts with reduced Fare for State and Municipal Public Entities that adhere to the Program of Rational Use of Water 

The  Company  has  entered  into  contracts  with  public  entities  related  to  the  State  Government  and  other  municipalities  involving  approximately
7,240  properties  that  are  benefited  with  a 25%  tariff  reduction  for  water  and  sewage  services.  The contract provides  for  the  implantation  of  the
program of rational use of water, which considers the reduction in water consumption. 

(e) Guarantees 

The  State  Government  and  the  Brazilian  Federal  Government,  in  some  cases,  provide  guarantees  of,  or  security  for,  the  Company’s  loans  and 
financing. The Company does not pay any fees with respect to these guarantees.  

F-22 

Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

7. INDEMNITIES RECEIVABLE 

Indemnities Receivable is a non current asset representing amounts receivable from the municipalities of Diadema and Mauá as indemnification for
the unilateral withdraw of the concessions of water and sewage services from the Company in 1995. On December 31, 2007 this asset amounted to
R$ 148,794. 

Under these concession contracts, the Company invested in the construction of water and sewage systems in those municipalities in order to meet
its concession services commitments. Due to the unilateral termination of the concessions of Diadema and Mauá, the municipalities have assumed
the responsibility to provide water and sewage services in those areas. At that moment, the Company reclassified the property, plant and equipment
balances  related  to  the  impounded  assets  used  in  those  municipalities  to  non  current  assets  (indemnities  receivable)  and  it  has  recorded  non
indemnifiable costs in order to reflect the assets by the recoverable amounts contractually estimated as indemnification by the Company before the
competent  authorities.  The  net  book  value  of  property,  plant,  and  equipment  relating  to  the  Municipality  of  Diadema,  written  off  in  December
1996, amounted to R$75,231, and the indemnity balance and other receivables from the municipality amounted to R$62,876 as of December 31,
2007 and 2006. The net book value of the property, plant and equipment items related to the municipality of Mauá, written-off in the fiscal year
1999, was R$ 103,763, and the indemnity balance totaled R$85,918 as of December 31, 2007 and 2006. 

The Company’s rights to the recovery of these amounts are being disputed by the municipalities and no amount has been received to date. 

SABESP  filed  lawsuits  to  collect  the  amounts  due  by  the  municipalities.  With  respect  to  Diadema,  the  decision  of  the  lower  court  judge  was
unfavorable to SABESP, which filed an appeal in November 2000. On December 1, 2005, SABESP’s appeal to have the agreement entered into 
with the municipality of Diadema declared valid was partially accepted. On October 11, 2006, the municipality administration office filed special
and  extraordinary  appeals  and  on  November  21,  2006  the  decision  that  allowed  the  Company  to  present  it  reply  to  said  appeals  was  published.
SABESP  presented  its  reply  on  December  6,  2006.  The  appeals  were  rejected  by  the  Chief  Judge  on  March  27,  2007  and  the  municipal
administration office filed new interlocutory appeals against this decision. The interlocutory appeal filed to the Federal Supreme Court (STF) was
accepted  but  only  for  the  purposes  of  determining  the  sentence  for  the  extraordinary appeal  that  had been  rejected.  On  December  26,  2007,  the
decision that accepted the execution of the Companhia de Saneamento the Diadema – Saned was rendered, ordering this company to be summoned 
to  pay  the  full  amount  of  the  debt  within  15  days  under  the  penalty  of  fine.  Currently,  the  Company  awaits  the  effect  of  this  summons  as  said
decision  was  published  on  January  2008  and  Saned  filed  an  Interlocutory  Appeal  against  it  but,  on  February  28,  2008,  the  Reporting  Judge,
sustained the decision and awaits for information on the lower court decision in order to analyze the motion for suspension.  

With regards to Mauá, a first court level decision was given requiring that the Municipality pay an amount of R$ 153.2 million as compensation for
the loss of profits. This decision was appealed by Mauá on April 15, 2005 and it is still pending a decision by the Court of Justice. On July 4, 2006,
the decision was converted in diligence consisting of an expert clarification on the amount of the indemnity for loss of profits. The clarification was
provided on December 18, 2007 and the expert confirmed the amount of the loss of profits determined by the lower court. On February 20, 2008,
the municipality of Mauá provided its opinion about the expert’s findings and the case is now with the judge. On April 7, 2008, Sabesp responded 
to the plaintiffs’ charges and now we are awaiting decision on the municipality and SAMA’s appeals. Based on our internal legal counsel opinion, 
our management still believes that we have the legal right to receive the amount related to the indemnity and we continue to monitor the status of
these legal proceedings. Considering the legal indexes the adjusted amount of this lawsuit is R$ 551 million.  

Based  on  the  opinion  of  its  legal  counsel,  Management  continues  to  state  that  the  Company  is  entitled  to  receive  the  amounts  related  to  the
indemnity and continues to monitor the status of the lawsuits.  

F-23 

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

8. PROPERTY, PLANT AND EQUIPMENT 

In use: 
Water systems: 
 Land 
 Buildings 
 Connections 
 Water meters 
 Networks 
 Wells 
 Equipment 
 Other 

Accumulated depreciation 
Total water systems 

Sewage system: 
 Land 
 Buildings
 Connections 
 Networks 
 Equipment 
 Other 

Accumulated depreciation 
Total sewage systems 

General use: 
 Land 
 Buildings
 Transportation equipment 
 Furniture, fixtures and equipment 

Accumulated depreciation 
Total general use 

Non Operational assets, net of accumulated 
depreciation 

Subtotal 

Construction in progress: 
 Water systems 
 Sewage systems 

 Other 

F-24 

Table of Contents

December, 31 

2007 

2006 

961,538  
2,817,488  
972,635  
294,846  
3,492,852  
205,117  
514,603  
16,287  
9,275,366  
(3,667,909) 
5,607,457  

348,508  
1,652,146  
944,588  
5,570,794  
559,080  
4,904  
9,080,020  
(2,727,252) 
6,352,768  

107,707  
138,120  
141,708  
315,515  
703,050  
(386,054)
316,996  

958,283 
2,806,526 
849,144 
279,028 
3,372,421 
206,478 
476,952 
14,322 
8,963,154 
(3,365,745)
5,597,409 

346,471 
1,516,769 
881,024 
4,933,032 
436,444 
126,899 
8,240,639 
(2,476,692)
5,763,947 

107,707 
133,705 
136,129 
310,122 
687,663 
(407,012)
280,651 

26,479  

26,478 

12,303,700  

11,668,485 

734,016  
1,018,620  

3,737  
1,756,373  
14,060,073  

708,097 
1,454,994 

5,922 
2,169,013 
13,837,498 

 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The fixed assets represent the assets involved in the service providing of supply of water and collection of sewage in 352 municipalities. In the
other  municipalities,  which  were  negotiated  by  financial  economic  appraisal,  described  in  the  item  above,  SABESP  holds  the  possession  of  the
assets. 

In 2007, one hundred and seventy four (174) concession contracts expired, 106 of which signed the program contracts and the remainder are in the
final stage for formalizing procedures. The net book value of the property, plant and equipment used in the municipalities where the concessions
are in the final stage for formalizing procedures or will expire in 2008 totaled R$2,02 billion. 

In 2007, the depreciation charges of these municipalities were R$79,713.  

The concession contracts provide for the assets to be returned to the concession grantor at the end of the term by means of an indemnity at the net
book  value  or  fair  value  in  accordance  with  what  is  stipulated  in  each  contract.  In  the  program  contracts,  the  indemnity  will  correspond  to  the
present value  of the  cash  flow in the  remaining period  on the date the services  are resumed,  monetarily restated,  plus  interest to the  date of  the
effective payment. 

(a) Depreciations 

Depreciation is calculated based on the following annual rates: - buildings – 4%, interceptors and networks – 2%, furniture, fixtures and equipment 
– 10%, water meters – 10%, vehicles – 20%, hardwares – 20%, building connectors – 5% and office furniture – 10%.  

(b) Disposals of property, plant and equipment 

The  Company  wrote-off  property,  plant  and  equipment  in  the  amount  of  R$  68,568,  R$  54,350,  and  R$  19,051  in  2007,  2006  and  2005,
respectively. Of these losses, R$14,247, R$ 21,348 and R$ 9,879 in 2007, 2006 and 2005, respectively, were related to the obsolescence, theft or
disposal of assets in use. The remaining balances of losses, of R$ 54,103, R$ 26,459 and R$ 9,172 were related to the write-off of construction in 
progress projects which were determined to be no longer economically feasible. 

(c) Capitalization of interests and financial charges 

The Company capitalized interests and monetary variation, including foreing currency exchange variation, to property, plant and equipment in the
amount  of  R$  13,338  for  the  year  ended  on  December  31,  2007  (2006  -  R$  5,784),  during  the  period  in  which  the  related  assets  were  under
construction.  

(d) Construction in Progress 

Construction in progress primarily related to new projects and operating improvements, are as follows: 

Water systems: 
 Networks and connections 
 Transmission 
 Water treatment 
 Sub-transmission 
 Production and storage
 Other 
Total water systems 
Sewage systems: 
 Collection 
 Treatment 
 Others 
 Total sewage systems 
 Others 
Total 

2007

2006

178,977  
22,281  
71,375  
225,646  
160,602  
75,135  
734,016  

710,960  
179,604  
128,056  
1,018,620  
3,737  
1,756,373  

227,360 
29,626 
80,130 
188,342 
126,519 
56,669 
708,646 

1,133,958 
187,047 
133, 440 
1,454,445 
5,922 
2,169,013 

F-25 

Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Estimated disbursements relating to construction works already contracted are estimated to be approximately R$ 2,050 million for fiscal years from
2008 to 2015 (unaudited). 

(e) Expropriations 

Development  of  major  water  and  sewage  systems  frequently  requires  the  expropriation  or  establishment  of  rights  of  way  through  third-party 
properties. The owners of these properties are generally compensated either through negotiated settlements or judicial arbitration. 

Disbursements to be effected as from fiscal year 2007 are estimated to be approximately R$ 472 million (unaudited), which will  be paid out of
Company funds. The related assets acquired as a result of these negotiations are recorded as property, plant and equipment when the expropriation
is complete. In 2007, the amount referring to expropriations was R$ 16,813 (2006 - R$ 8,385). 

(f) Assets in guarantee 

At  December  31,  2007  and  2006,  the  Company  had  assets  in  the  amount  of  R$  249,034  provided  as  guarantee  under  the  Special  Tax  Debt
Refinancing Program - PAES (Note 12). 

Additionally, three of the Company’s real estate properties, in the amount of R$ 60,539, was pledged as guarantee for financing together with the
International Bank for Reconstruction and Development - Bird (note 10). The last installment of this financing was paid in April, 2007 and the real
estate properties are waiting for the Federal Government release. 

(g) Non-operating assets 

The Company had R$ 26,479 at December 31, 2007 and 2006 referring to other non-operating assets given as free leases, comprised primarily of
lands surrounding reservoirs. 

(h) Revaluation 

Property, plant and equipment items were revalued in 1990 and 1991 and are depreciated at annual rates that correspond to their remaining useful
lives determined in the related reports, which, as general rule, fall into the periods of the rates presented above. 

As allowed by CVM Instruction No. 197/93, the Company did not recognize a provision for the deferred tax effect on the appreciation arising from
the revaluation of property, plant and equipment in 1990 and 1991. Should income and social contribution taxes be recognized on the revaluation
reserve, the unrealized amount as of December 31, 2007 would total R$400,606 (2006 – R$430,375). The amounts of R$87,670 and R$102,272 of
the revaluation reserves were realized in the years ended December 31, 2007 and 2006, respectively.  

(i) Totally depreciated assets 

On December 31, 2007 the book value of fully depreciated assets which are still in use is R$ 606,142 (2006 - R$ 426,659). 

9. INTANGIBLE ASSETS 

In the period between 1999 and 2006, the negotiations for new concessions were conducted on the basis of the economic and financial results of the
transaction, determined in an appraisal report issued by independent experts.  

The amount determined in the respective contract, after the transaction is closed with the municipal authorities, with payment through Company
shares or in cash, is recorded in this account and amortized over the period of the related concession (usually 30 years). As of December 31, 2007
and 2006 there were no amounts pending related to these payments to the municipalities. 

F-26 

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The net disclosed amount refers to the assumption of the following municipalities: 

Municipalities 

Agudos 
Bom Sucesso do Itararé 
Campo Limpo Paulista 
Conchas 
Duartina 
Estância de Serra Negra 
Itapira 
Itararé 
Marabá Paulista 
Miguelópolis 
Osasco 
Paraguaçu Paulista 
Paulistânia 
Sandovalina 
Santa Maria da Serra 
São Bernardo do Campo 
Várzea Paulista 
Total 
Less accumulated amortization 
Concession assets, net 

Table of Contents

Year ended December 31, 
2006 
2007 

7,773  
350  
15,269  
3,541  
1,589  
15,124  
16,123  
5,784  
1,603  
4,431  
288,025  
14,418  
154  
2,384  
1,147  
237,463  
13,250  
628,428  
(120,639) 
507,789  

7,538 
338 
11,811 
2,250 
1,462 
13,255 
14,729 
5,554 
444 
4,083 
269,068 
14,166 
150 
215 
1,090 
237,459 
11,999 
595,611 
(100,493)
495,118 

Amortization expense related to intangible concession rights was R$ 20,147, R$ 20,030 and R$ 19,617 for the years ended December 31, 2007,
2006 and 2005, respectively. Amortization expense for the next five years is estimated to be approximately R$ 20,000 per year. 

F-27 

 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

10 - LOANS AND FINANCING 

2007 

  Current 

 Non 
  Current 

Total 

Current 

2006 

Non 
Current 

Total 

Guarantees 

Final 
Maturity 
Date 

  Annual interest rate 

Adjustment 
to inflation 

In local currency: 
Banco do Brasil 

Debentures 5th Issue 
Debentures 6th Issue 
Debentures 7th Issue 

Debentures 8th Issue 
Caixa Econômica Federal 
FIDC - SABESP I 
National Bank for Economic and Social 
Development - BNDES 

Other 
Accrued Interest and financial charges 

In foreign currency: 
Eurobonus: US$ 238,052 thousand (2006 -US$   
238,052 thousand)
Interamerican Development Bank (IDB): US$ 
432,099 thousand (2006-US$ 435,867 thousand)  
International Bank for Reconstruction and 

Development - BIRD (“World Bank”): (2006-
US$ 2,223 thousand)
JBIC - Yens 2,654,422 (2006-Yens 652,814)
Accrued Interest and financial charges 

Total loans and financing 

238,194   1,642,644   1,880,838 
-
427,657 
312,362 

-  
427,657  
312,362  

-  
-  
-  

215,723  1,854,042  2,069,765 
46,038 
628,978 
304,350 

46,038 
231,813 
-

-
397,165 
304,350 

State of S. Paulo 
Government and Own 
Funds 

2014 
2007 
2010 
2010 

-  
58,267  
55,555  

737,438  
490,904  
125,000  

737,438 
549,171 
180,555 

-
49,648 
55,555 

709,815 
477,628 
180,556 

709,815 
527,276 
236,111 

Own Funds 
Own Funds 

2011 
2008/2022   
2011 

41,904  

165,689  

207,593 

31,515 

154,043 

185,558 

Own Funds 

2013 

3,146  
93,398  

21,899 
18,753  
125,434 
32,036  
490,464   3,952,483   4,442,947 

2,791 
99,252 

25,927 
23,136 
20,891 
120,143 
732,335  4,121,626  4,853,961 

2009/2011   

8.50% 
10.65% 
11% 
  CDI+1.5% / 10.8% 
CDI+1.5% / 
10.75% 
5% to 9.5% 
CDI + 0.70% 
3% + TJLP 
LIMITE 6% 
  12% / CDI /TJLP + 
6% 

173,680  

247,982  

421,662 

-

508,955 

508,955 

2008/2016   

12% / 7.5% 

64,764  

700,613  

765,377 

99,930 

831,952 

931,882 

Federal Government 

2016/2025   

3.00% to 5.61% 

-  
42,043  
-  

-
-  
42,043 
-  
13,206 
13,206  
990,638   1,242,288 
251,650  
742,114   4,943,121   5,685,235 

-
11,721 
-

4,752 
-
15,458 

4,752 
11,721 
15,458 
120,140  1,352,628  1,472,768 
852,475  5,474,254  6,326,729 

Federal Government 
Federal Government 

2007 
2029 

5.15% 
1.8% / 2.5% 

UPR 
IGP-M 
IGP-M 
IGP-M 

IGP-M 
UPR 

UPR 

US$ 
Currency
bsket var. +US$

Currency
bsket var. 
+US$ 
Yens 

Exchange rate at December 31, 2007: US$ 1.7713; Yens 0.015839 - (2006 - US$ 2.1380; Yens 0.017954) .  

During 2007, the Company did not contract any short-term loans and financing. 

F-28 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(a) Banco do Brasil 

In  March  1994,  existing  loan  agreements  with  Caixa  Econômica  Federal  were  refinanced  and  the  loan  rights  were  transferred  by  that  financial
institution  to  the  Federal  Government,  with  Banco  do  Brasil  acting  as  an  agent.  Under  the  terms  of  the  agreement  signed  with  the  Federal
Government, charges and payments are made on the “Price” amortization system, indexed monthly to the Standard Reference Unit (UPR), which is
equal  to  the  Government’s  benchmark  Interest  Rate  (TR),  plus  interest  8.5%  per  year.  Interest  and  principal  are  payable  monthly,  with  final
maturity in 2014. This financing is guaranteed by the State of São Paulo Government’s revenue and by the Company’s own revenues.

(b) Debentures 

(i) 5th Issue

On April 1, 2002 the Company made a public placement for the 5th issue of simple, book-entry, registered, unsecured, non-convertible debentures, 
with face value of R$ 10. The amount of the 2nd issue is monthly changed, due to its characteristics, in accordance with the indenture.

40,000 debentures were issued, distributed in two series, as follows: 

Placement date 
Number 
Face value of Issue 
Original yield 

Interest payments 

Amortization 

1st Series 
05/16/2002 
31,372 
  R$ 313,720 
  CDI + 1.85% per year 
  Quarterly, except for last 

installment on 
03/01/2007 
3 installments on 04/01/2005, 
04/01/2006 and 03/01/2007 

2nd Series 
05/16/2002 
8,628 
R$ 86,280 
IGP-M + 13.25% per year 
Annual, except for last 
installment in 
03/01/2007 
3 installments on 04/01/2005, 
04/01/2006 and 03/01/2007 

The interest rates for the two series were renegotiated for the last time in April 2005, whereby the rate for the 1st Series was changed from CDI 
(Interbank Deposit Certificate) + 2.0% per year to CDI + 1.1% per year, and the rate for the 2nd Series was changed from IGPM + 12.7% per year
to IGPM (General Market Price Index) + 10.65% per year, in effect until the agreement conclusion. 

Interest expense was R$0, R$ 10,991 and R$ 45,015 in 2007, 2006 and 2005, respectively relating to the 1st Series, and R$ 837, R$ 6,089 and R$ 
11,584, respectively, relating to the 2nd Series.

On April 19, 2006, the Company made the anticipated settlement of the 5th issue of debentures, 1st series which maturity was scheduled for March 
2007, through the use of part of the resources obtained from the funding of the Investment Fund in Credit Rights SABESP I - FIDC, in the amount 
of R$ 106,373. 

On March 1, 2007, the 2nd series of this issue was paid in full. 

(iii) 6th Issue 

On September 17, 2004, the Company registered with the CVM a securities program in the total amount of R$ 1,500,000. As part of such program,
on September 1, 2004 the Company issued 600,000 non-convertible debentures, distributed in three series, without renegotiation with face value of
R$ 1, totaling R$ 600,000. The date of the financial settlement of the transaction was September 21, 2004 for the 1st series, and September 22, 
2004, for the 2nd and 3rd series.

F-29 

 
 
 
 
 
 
 
 
 
 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The debentures were placed on the market as follows: 

Amount 

  Adjustment 

1st Series 
2nd Series 
3rd Series 

231,813 
188,267 
179,920 

- 
IGP-M 
IGP-M 

Interest 
CDI+1.75% 
p.a. 
11% p.a. 
11% p.a. 

Interest payment 

Amortization 

Maturity date 

Semiannual 
Annual 
Annual 

Single payment 
Single payment 
Single payment 

Sep/2007 
Sep/2009 
Sep/2010 

Interest expense was R$ 21,708, R$ 38,054 and R$ 46,481 in 2007, 2006 and 2005, respectively, relating to the 1st series; R$ 23,290, R$ 21,932 
and R$ 21,420, respectively, relating to the 2nd series, and R$ 22.258, R$ 20,960 and R$ 20,470, respectively, relating to the 3rd series. Remaining 
accrued interest balances to be paid in the amount of R$7,366 (2006 - R$ 6,841 and 2005 - R$ 6,757) for the 2nd series, and R$ 7,040 (2006 - R$ 
6,538 and 2005 – R$ 6,458) for the 3rd series. Such amounts are recorded under “Loans and financing” in current liabilities.

On September 3, 2007, the 1st series was paid integrally. 

(iv) 7th Issue of Debentures

Within the program registered together with the CVM on September 17, 2004, the Company issued, in March 1, 2005, 300,000 non-convertible 
debentures, distributed into two series, without renegotiation, at the par value of R$ 1, totaling R$ 300,000. The date of the financial settlement was
March 14, 2005. 

The debentures were placed in the market as follows: 

Amount 

  Adjustment   

Interests 

Interest Payment 

1st series 
2nd series 

200,000 
100,000 

- 
IGP-M 

  CDI + 1.5%p.a. 
10.80% p.a. 

Semiannual 
Annual 

Amortization 

Single payment 
Single payment 

Maturity Date 

Mar/2009 
Mar/2010 

Interest  expense  was  R$  26.159,  R$  32,305  and  R$  33,378  in  2007,  2006  and  2005,  respectively,  relating  to  the  1st  series;  and  R$  11,974,  R$ 
11,162 and R$ 9,013, respectively, relating to the 2nd series. Remaining accrued interest balances to be paid, in the amount of R$ 7,788 (2006 –
R$9,304  and  2005  -  R$  12,631)  for  the  1st  series  and  R$  9,975  (2006  –  R$  9,218  and  2005  -  R$  9,013)  for  the  2nd  series,  are  recorded  under
“Loans and financing” in current liabilities. 

(v) 8th Issue of Debentures

In  completion  to  the  program  registered  at  the  CVM  on  September  17,  2004  the  Company  issued,  on  June  1st,  2005,  700,000  non-convertible 
debentures,  using  the  option  to  increase  the  quantity  of  debentures  allowed  up  to  20%,  according  to  the  paragraph  2  of  article  14  of  the  CVM
inscription nr. 400/03, distributed in two series, without renegotiation, at par value of R$ 1, amounting to R$ 700,000. The settlement date of the
financial operation was June 24, 2005. The amount received has been destined to the settlement of the Eurobonds contract. 

The debentures were placed in the market as follows: 

Amount 

  Adjustment   

Interests 

Interest Payment 

1st series 
2nd series 

350,000 
350,000 

- 
IGP-M 

  CDI+1.5% p.a. 
10.75% p.a. 

Semiannual 
Annual 

Amortization 

Single payment 
Single payment 

Maturity Date 

Jun/2009 
Jun/2011 

Interest expense was R$ 45,744, R$ 56,385 and R$ 41,028 in 2007, 2006 and 2005, respectively, relating to the 1st series, and R$ 40,496, 37,953 
and R$ 21,420, respectively, relating to the 2nd series. Remaining accrued interest

balances to be paid, in the amount of R$ 3,187 (2006 – R$ 3,668 and 2005 - R$ 5,341) for the 1st series, and R$ 23,444 (2006 - R$ 21,773 and
2005 - R$ 21,420) for the 2nd Series, are recorded under “Loans and financing” in current liabilities.

F-30 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Financial covenants of the 6th, 7th and 8th issue of debentures

  Adjusted current ratio (current assets divided by current liabilities, excluding from the current liabilities the short-term portion of the long-

term debts undertaken by the Company) over 1.0.  
  EBITDA/Financial Expenses equal to or less than 1.5.  
  Non-compliance  with  these  obligations  will  not  be  evidenced  unless  if  recorded  in  quarterly  financial  statements,  for  at  least  two

consecutive quarters, or for two non-consecutive quarters within a period of twelve months.  

(c) Caixa Econômica Federal  

Pro-Sanitation Program  

(i) Water and sewage agreements 

From  1996  through  2004,  the  Company  entered  into  several  loan  agreements  under  Pro-Sanitation  Program,  with  a  view  to  expanding  and
improving the water supply and sewage systems of several municipalities of the State of São Paulo and of the City of São Paulo. The loans are
collateralized by collections of the daily billings from water supply and sewage services up to the total amount of the debt. 

Contractually established repayment terms range from 120 to 180 months, from the date the related projects become operational. 

The balance at December 31, 2007 is R$ 527,669 (2006 - R$ 506,221), being the amount to use from these contracts of R$ 396,221.

Contract charges are as follows: 

Interest rates 
In the grace period: 
Risk fee 

Management fee 

 1996 

Contract executed in: 
1997 

 1998 - 2004 

9.5% p.a. 

6.5% to 8.0% p.a. 

6.5% to 8.0% p.a. 

1.0%p.a. on disbursed 
amount 
0.12% p.m. on 
contract value 

1.0%p.a. on disbursed 
amount 
2.0% p.a. on 
disbursed value 

0.6% p.a. or 2% p.a. on 
outstanding balance 
1.0% p.a. on 
disbursed value or 2% 
p.a. on outstanding 
balance for agreements 
executed in 2003-2004. 

In the repayment stage: 
Management fee 

  Difference between 

1.0% p.a. on 

1.0% p.a. on 

calculation of 
installment 
at the rate of 10.5% 
p.a.
less rate of 9.5% 
p.a.

(ii) Pro-sanitation Program - “Pró-Sanear”  

outstanding balance 

outstanding balance 

In 1997 and  1998 contracts  were signed under the Pro-Sanitation - “Pró-Sanear”  program for the improvement of  water and sewage services  in 
several  municipalities  of  the  Metropolitan  Region  of  São  Paulo,  with  the  participation  of  the  communities  receiving  the  services.  The  loans  are
collateralized  by collections of  the billings from  water supply and  sewage services  up to the total amount of the  debt. Contractually established
repayment terms are 180 months from the date the related projects become operational. Outstanding loan balances at December 31, 2007 and 2006
were R$ 21,502 (2006 - R$ 21,055), being the amount available for use from these loans for projects already in progress of R$ 8,676. 

F-31 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Applicable financial charges: 

Interest rate - 5.0% p.a.;  
Management fee (Grace period) - 2.0% p.a. on outstanding balance;  
Management fee (amortization stage) - 1.0% p.a. on outstanding balance;  
Risk fee (grace period) - 1.0% on disbursement. 

Financial covenants: 

  Under  the  Performance  Improvement  Agreement,  goals  are  set  for  financial  indexes  (operating  margin,  personnel  expense  margin  and

revenue evasion index) and operating indexes which, based on the previous 2 years, are annually projected for the next 5 years.

(d) BNDES 

Agreement  01.2.619.3.1  -  Executed  in  August  2002,  in  the  total  amount  of  R$  60,000,  with  the  purpose  of  financing  part  of  the  Company’s 
counterparty  in  the  performance  of  the  Tietê  River  Depolluting  Project  -  Stage  II,  object  also  of  loan  agreement  no.  1212/OC  -  BR,  with  the 
Interamerican Development Bank - IDB. The related project is in the execution stage and the outstanding balance at December 31, 2007 was R$
51,896 (2006 - R$ 46,389). 

Onlending agreement 10/669.748 -6, in the total amount of R$ 180,000, distributed among the financial agents in the following proportions: 

Agent 

Unibanco - União de Bancos Brasileiros S.A. 
Banco BBA Creditanstalt S.A. 
Banco Alfa de Investimento S.A. 
Banco Itaú S.A. 
Total 

Amount 

60,000 
51,000 
39,000 
30,000 
180,000 

The  related  project  is  in  the  execution  stage,  the  total  amount  disbursed  the  outstanding  balance  at  December  31,  2007  was  R$  155,697  (R$
139,169  in  2006).  The  onlending  agreement  funds  are  passed  on  from  BNDES  to  the  financial  agents,  and  by  the  agents  to  the  Company.  The
onlending agreement has the same purpose as  the agreement  entered into between  BNDES and the  Company,  and  the charges  and  amortization
terms are equal for both, being: 

Interest  -  Long-Term  Interest  Rate  (TJLP)  limited  to  6%  p.a.,  plus  a  spread  of  3%  per  annum,  payable  quarterly  during  the  grace  period,  and
monthly in the repayment period. The portion of the TJLP that exceeds 6% p.a. shall be incorporated into the outstanding balance.

Monthly principal repayments began  in  September  2005, with final  maturity in February 2013.  The agreements are collateralized by  part of  the
revenue from water and sewage services.  

Financial covenants: 

  Adjusted current ratio: over 1.0;  
  EBITDA / ROL: equal or higher than 38%;  
  Total connections (water and sewage) / own employees: equal to or higher than 520;  
  EBITDA / Debt Service: equal to or higher than 1.5;  
  Shareholders’ Equity / Total Liabilities: equal to or higher than 0.8.  

F-32 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(e) FIDC 

On March 23, 2006 a single series of senior quotas and 26 (twenty six) subordinated quotas were issued, kept in deposit account in name of their
respective holders, with unit value at the date of issuance corresponding to R$500,000 (five hundred thousand reais). The senior quotas are being
amortized in 54 (fifty four) monthly installments, beginning on October 2006 and with final maturity in 2011. On December 31, 2007 the balance
related to the subordinated quotas was R$ 16,121 (2006 – R$ 14,316), recorded as “Other Accounts Receivable” in non current assets; the balance 
related to the senior quotas was R$ 180,555 (2006 – R$ 236,111) recorded as “Loans and Financing”. The subordinated quotas were underwritten 
and paid up exclusively by SABESP. The fund has a profitability parameter corresponding to 100% (one hundred per cent) over the DI rate, added
by  a  pre-fixed  coupon  of  0.70%  (seventy  centesimal  points  per  cent)  interest  per  year,  based  on  252  working  days,  observed  the  terms  of  its
regulation. 

The Fund is managed by Caixa Econômica Federal and has as custody and underwriting agent Banco do Brasil S.A. 

The resources obtained, in the amount of R$ 250 million, were used by the Company for the settlement of debts during the year 2006. 

(f) Eurobonds 

(i) In June 2003, the Company issued US$ 225 million 12% Notes due 2008. Interest is payable semiannually with final maturity in June 2008.
“The Bank of New York” acted as lead arranger and “The Bank of Tokyo Mitsubishi Ltd.” as principal paying agent. These funds were used for
final settlement of the Eurobonds issue of US$ 200,000 thousand matured in July 2003. 

On  November  6,  2006,  the  Company  settled  in  advance  part  of  this  loan,  in  the  amount  of  R$272,811,  with  funds  raised  through  the  issue  of
Eurobonds in the amount of US$140 million. 

(ii)  On  November  3,  2006  an  issue  of  Eurobonds  took  place  (Eurobonds  2016)  in  the  foreign  market  in  the  amount  of  US$140,000  thousand,
having as leader “Deutsche Bank Trust Company Americas” and as principal paying agent “Deutsche Bank Luxembourg S.A.”, with interest rate 
of 7.5% p.a. paid semi-annually and with final maturity in November 2016. As mentioned in (i) above, the resources were used for the advanced
and  partial  settlement  of  the  issue  of  Eurobonds  of  US$225,000  thousand  with  final  maturity  in  June  2008,  and  the  redempted  amount  was
US$126,948 thousand. 

Due  to  the  payment  in  advance  of  Eurobonds  2008,  an  amendment  to  the  loan  agreement  was  signed  cancelling  the  mandatory  calculation  of
covenants. 

Financial Covenants - for Eurobonus 2016. 

Limiting the incurrence of new debt in such a way that:  

  the total adjusted indebtedness in relation to Ebitda shall not be higher than 3.65  
  the Company’s debt service coverage ratio determined in the date of incurrence shall not be less than 2.35.  

(g) Inter-American Development Bank (IDB) 

Agreement 229 - In June 1987, the Company signed a loan agreement with the IDB for US$ 163 million destined to the execution of a sewage
program in the São Paulo Metropolitan Region. Semiannual principal repayments began in January 1994, with final maturity in July 2007. The loan
bears interest of 7.7% per annum. A guarantee agreement between the Federative Republic of Brazil and the IDB was executed in June 1987, to
warrant the provision of funds to meet the obligations set forth in the financing agreement. The last installment was paid on July, 2007. 

Agreement 713 - In December 1992, the Company signed a loan agreement with the IDB for US$ 400 million destined to the execution of the Tietê
River  Clean-up  Project  -  Stage  I.  Semiannual  principal  repayments  began  in  June  1999,  with  final  maturity  in  December  2017.  The  loan  bears
interest at variable rate based on the cost of funding to the IDB. A guarantee agreement between the Federative Republic of Brazil and the IDB was
executed in December 1992, to warrant the provision of funds to meet the obligations set forth in the financing agreement. The outstanding balance
of such agreement on December 31, 2007 was US$ 224,688 thousand, equivalent to R$ 397,990 (2006 - R$ 507,974). 

F-33 

Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Agreement 896 - In December 1992, the Company signed an additional loan agreement with the IDB for US$ 50 million for the Tietê River Clean-
up  Project  -  Stage  I.  This  loan  bears  interest  at  3.0%  per  annum.  Semiannual  principal  repayments  began  in  June  1999,  with  final  maturity  in
December 2016. A guarantee agreement between the Federative Republic of Brazil and the IDB was executed in December 1992, to warrant the
provision of funds to meet the obligations set forth in the financing agreement. The outstanding balance of such agreement at December 31, 2007
was US$ 25,000 thousand, equivalent to R$ 44,282 (2006 - R$ 59,389). 

Agreement  1.212  -  In  July  2000,  the  Company  signed  a  loan  agreement  with  the  IDB  for  US$  200  million  to  finance  the  Tietê  River  Clean-up 
Project  -  Stage  II.  The  related  project  is  in  the  execution  stage,  the  total  amount  disbursed  in  2007  having  been  US$  33,664  thousand  and  the
amount available for use from these loans is US$ 2,434 thousand. The loan will be repaid in semiannual installments and the last one is in July,
2025. The loan bears interest semiannually, on the daily outstanding balance, at the annual rate determined in accordance with the costs of loans
borrowed  by  the  bank  in  the  previous  semester,  plus  a  spread,  being  variable  for  each  semester.  The  outstanding  balance  of  such  agreement  at
December 31, 2007 was US$ 182,411 thousand, equivalent toR$ 323,105 (2006 - R$ 336,625). 

Financial covenants 

  Agreements 713, 896 and 1.212 - Tariffs must: a) produce enough revenue to cover the system operating expenses, including those related 
to  management, operation, maintenance  and  depreciation; b) ensure profitability on  property, plant  and equipment  of  not less than 7%. 
During the performance of the project the outstanding balances of short-term loans must not exceed 8.5% of the Company’s shareholders’
equity. 

(h) International Bank for Reconstruction and Development - BIRD 

Agreement 3.504 - Aiming at transferring the funds of the agreement executed between the State of São Paulo and the BIRD in December 1992
and destined to the execution of the environmental clean-up of the Guarapiranga Basin, an onlending agreement between the State of São Paulo and
the Company was executed in March 1993. In December 1992, a guarantee agreement was executed between the Federal Republic of Brazil and
the BIRD, to warrant the provision of funds to meet the obligations set forth in the financing agreement. Semiannual principal repayments began in
October 1997, and the last installment was paid on April, 2007. 

(i) Japan Bank For International Cooperation (“JBIC”) 

On August 6, 2004, the Company executed a financing agreement with the JBIC - Japan Bank for International Cooperation, guaranteed by the 
Federal  Government,  in  the  amount  of  21,320  million  Japanese  Yens,  equivalent  to  approximately  R$  337,687,  which  is  intended  for  the
Environment  Recovery  Program  for  the  Metropolitan  Region  of  Santos  Coastal  Area.  The  total  term  of  the  financing  agreement  is  25  years,
comprising 18 years  for amortization in  semiannual installments and 7  years for  grace period.  Interests is being paid semiannually beginning in
2006  at  the  rate  of  2.5%  p.a.  for  the  sewage  network  and  1.8%  p.a.  for  sewage  treatment  facilities.  The  outstanding  balance  of  this  contract  in
December 31, 2007 was R$ 42,043 (2006 – R$11,721). 

(j) Financial Commitments - Covenants 

At  December  31,  2007  and  2006,  the  Company  was  in  compliance  with  all  debt  covenants  and,  consequently,  the  balances  of  the  loans  and
financings are duly classified between short and long term, in accordance to the contracts. 

F-34 

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(k) Maturity dates of loans and financing 

In local currency 
In foreign currency 
Total 

11. TAXES AND CONTRIBUTIONS 

2008 

2009 

  490,464  1,208,383 
  251,650 
64,764 
  742,114  1,273,147 

2010 
787,837 
64,764 
852,601 

2011 
831,493 
65,900 
897,393 

Table of Contents

 2014 
  onward 

2013 

2012 
447,961    445,678     231,131  4,442,947 
67,037     661,136  1,242,288 
67,037   
514,998    512,715     892,267  5,685,235 

Total 

Income tax and social contribution (a federally mandated tax based on income) are accrued on taxable results at the applicable tax rates, generally
25% for income tax and 9% for social contribution tax (34% composite rate). 

(a) Reconciliation of the effective tax rate 

The amount recorded as income tax and social contribution expenses in the financial statements is reconciled from the nominal rates provided by
law, as shown below:  

Income before taxes on income 
Statutory rate 
Tax expense at statutory rate 
Permanent differences 
Realization of revaluation reserve 
Interest on shareholders’ equity 
Other differences 
Income and social contribution taxes 

Current Income and social contribution taxes 
Deferred Income and social contribution taxes 
Effective rate 

(b) Composition of deferred taxes and social contributions 

In current assets: 
Provision for contingencies
Tax loss carryforwards 

In long-term assets: 
Provision for contingencies 
Provision for pension obligations 
Other 

Total deferred tax assets 

In current liabilities: 
Revenue from public entities 
In non current liabilities 
Profit for governmental agencies 

Revenue for governmental agencies 

Total deferred tax liabilities 

F-35 

2007 

2006 

1,480,271 
34% 
(503,292)

(29,808)
102,253 
(721)
(431,568)

(543,345)
111,777 
29% 

1,189,805  
34%  
(404,534) 

(34,772)
92,086  
(28,558) 
(375,778) 

(383,123) 
7,345  
32%  

2005 

1,217,148 
34% 
(413,830)

(30,413)
118,393 
9,471 
(316,379)

(343,426)
27,047 
26% 

2007 

2006 

108,792  
-  
108,792  

225,697  
121,039  
10,490  
357,226  
466,018  

75,249  

86,487  

73,378  
159,865  
235,114  

7,078 
-
7,078 

226,265 
106,097 
10,292 
342,654 
349,732 

76,359 

81,978 

64,923 
146,901 
223,260 

 
 
 
 
 
 
 
 
 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(i) In current assets 

Mainly calculated on temporary differences in the amount of R$ 319,977 (2006 - R$ 20,819). 

(ii) In long-term assets 

Mainly calculated on temporary differences in the amount of R$ 1,043,388 (2006 - R$ 1,000,985) related to income tax and R$ 1,070,876 (2006 -
R$ 1,026,756) related to social contribution. 

As per a technical feasibility study, the temporary differences mentioned in items (i) and (ii) are likely to be realized in 2008 and 2009. 

(iii) In current liabilities 

Substantially calculated on amounts invoiced to government agencies, with taxes being deferred upon receipt of the invoices. 

(iv) In non current liabilities 

-Income tax and social contribution 

Substantially calculated based on temporary differences in the amount of R$ 267,636 (2006 - R$ 254,376) relating to income tax and R$ 217,530 
(2006 - R$ 204,269) relating to social contribution. 

- Pasep e Cofins 

Substantially calculated on amounts invoiced to government agencies, wich are accrued for when services are rendered and wich are paid when the
related amounts are effectively received by the Company. 

12. TAXES PAYABLE 

Income tax 
Social contribution 
COFINS and PASEP 
Paes 
Inss 
Other 
Total 

Current 

Non Current 

2007 

2006 

2007 

2006 

4,420 
5,331 
41,629 
43,918 
20,072 
12,365 
127,735 

-
-
38,142 
41,897 
18,230 
7,283 
105,552 

-  
-  
-  
197,635  
-  
-  
197,635  

-
-
-
230,440 
-
-
230,440 

The Company applied for enrollment in the Special Tax Debt Refinancing Program (“PAES”) on July 15, 2003 in accordance with Law No. 10,684 
of May 30, 2003, in which the Company included certain tax liabilities related to COFINS and PASEP, debts involved in a lawsuit brought against
the  enforcement  of  Law  No.  9718/98,  and  consolidated  the  previously  outstanding  balance  of  tax  liabilities  included  under  the  Tax  Recovery
Program (“REFIS”). The total amount of tax liabilities included in the PAES was R$ 316,953, as follows: 

Cofins 
Pasep
Refis 
Total 

Tax 

Principal 

Fine 

Interest 

Total 

132,499 
5,001 
112,639 
250,139 

13,250  
509  
-  
13,759  

50,994  
2,061  
-  
53,055  

196,743 
7,571 
112,639 
316,953 

F-36 

 
 
 
 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The  PAES  obligation  is  being  paid  in  120  months.  The  amounts  paid  in  2007,  2006  and  2005  were  of  R$  43,002,  R$  40,824  and  R$  37,986,
respectively, and financial expenses were recorded in the amount of R$ 12,218, 17,646 and R$ 24,852, respectively. The outstanding balance in
December 31, 2007 was R$ 241,553 (2006 – R$ 272,337). Assets pledged as guarantee under the previous REFIS Program, in the amount of R$ 
249,034, continue to secure amounts under the PAES Program. 

Table of Contents

13. PENSION AND HEALTH BENEFIT PLANS 

(a) Health benefit plan 

Managed  by  Fundação  SABESP  de  Seguridade  Social  -  “SABESPREV”, the  plan  is  comprised  of  free-election  health  benefit  plans,  funded  by 
contributions from the sponsor and the participating employees, which were the following in the year: 

Company: average of 7.2% (2006 - 7.0%) on the payroll;  

Participating employees: 3.21% of base salary and bonus, corresponding to 2.3% of the gross payroll, on average. 

(b) Pension benefits 

Managed  by  Fundação  SABESP  de  Seguridade  Social  -  “SABESP”,  the  defined  benefit  pension  plan  is  supported  by  monthly  contributions  as
follows: 2.10% from the Company and 2.3% from the participating employees. In order to meet the provisions of CVM Resolution No. 371, of
December 13, 2000, below is a description of the amounts of pension and retirement benefits paid granted and payable, to which the employees
will be entitled after their service time. 

Based on independent actuarial reports (Assistants - Assistants Assessoria, Consultoria e Participações Ltda.) at December 31, 2007, calculated in
conformity with the Projected Unit Credit Method, the Company had a net actuarial liability of R$ 365,234 (R$ 321,212 in 2006), representing the
difference between the present value of the Company’s liability to the participating employees, retired employees, and pensioners, of the related
assets, as shown below: 

(i) Reconciliation of assets and liabilities 

Present value of actuarial liabilities 
Fair value of plan assets 
Gains to be recognized in future years 
Net actuarial liability
Net liability recognized in the balance sheet 

(ii) Expenses recognized in the statements of income 

Current service cost 
Interest cost 
Expected return on plan assets 
Amortization (gain)/loss 
Employee contributions 
Amortization of past service cost 
Total 

F-37 

2007 

2006 

(1,386,563) 
969,440  
51,889  
(365,234)
(365,234) 

(1,096,219)
812,909 
(37,902)
(321,212)
(321,212)

2007 

2006 

33,440  
131,848  
(96,439) 
-  
(12,925)
-  
55,924  

17,545 
93,270 
(83,065)
(9,508)
(15,411)
53,214 
56,045 

 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(iii) Changes in net actuarial liabilities 

2007 

2006 

Table of Contents

Present value of the net actuarial liability in the beginning of the year
Current service cost 
Interest cost 
Expected return on plan assets 
Amortization (gain)/loss 
Employee contributions 
Amortization of past service cost 

Actual contributions by the Company in the year 
Present value of net actuarial liability at the end of the year 

(321,212)
(33,440) 
(131,848) 
96,439  
-  
12,925  

-
(377.136)
11,902  
(365,234)

(276,558)
(17,545)
(93,270)
83,065 
9,508 
15,411 
(53,214)
(332,603)
11,391 
(321,212)

(iv) Reconciliation of changes in the present value of assets 

2007 

2006 

Fair value of plan assets in the beginning of the year 
Actual return on plan assets 
Actual contributions in the year 
Benefits paid 
Fair value of plan assets at the end of the year 

812,909  
183,748  
24,827  
(52,044) 
969,440  

678,185 
138,444 
26,802 
(30,522)
812,909 

(v) Reconciliation of changes in the present value of liabilities 

2007 

2006 

Present value of liabilities in the beginning of the year 
Current service cost 
Interest cost 
Benefits paid 
Loss (gain) in the present value of liabilities 
Present value of liabilities at the end of the year 

(vi) Estimated expenses 

Current service cost 
Interest cost 
Expected return on plan assets 
Amortization (gain)/loss 
Employees contributions 
Amortization of past service cost 
Total 

(vii) Actuarial assumptions 

1,096,219  
33,440  
131,848  
(52,044) 
177,100  
1,386,563  

790,552 
17,545 
93,270 
(30,522)
225,374 
1,096,219 

2008 

2007 

33,347  
164,124  
(117,317) 
-  
(13,025)
-  
67,129  

33,440 
131,848 
(96,439)
-
(12,925)
-
55,924 

Several statistical and other factors that attempt to project future events are used in calculating the expense and liability related to the plans. These
factors  include  assumptions  about  the  discount  rate,  expected  return  on  plan  assets  and  the  rate  of  future  salary  increases  as  determined  by  the
Company, within certain internal guidelines. In addition, the actuary also uses subjective factors such as termination, turnover and mortality rates to
estimate  these  factors.  The  actuarial  assumptions  used  by  the  Company  are  reviewed  on  a  regular  basis  and  may  differ  materially  from  actual
results due to changing market and economic conditions, regulatory events, judicial rulings, higher or lower termination/withdrawal rates or longer
or  shorter  life  spans  of  participants.  Such  differences  may  result  in  a  significant  impact  on  the  amount  of  pension  expense  recorded  by  the
Company. 

F-38 

 
 
 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The assumptions used for the actuarial valuation were as follows: 

Economic assumptions 

Discount rate 
Expected rate of return assets 
Future salary increases 
Growth in social security benefits 
and limits 
Capacity factor 
- Salaries 
- Benefits 

Demographic assumptions for 
Mortality table 
Disabled mortality table 
Disability entry table 
Turnover table 

Retirement age 

% active participants married at time of retirement 

Age difference between participants and their spouses 

2007 

2006 

10.85% p.a. 
10.85% p.a. 
6.08% p.a. 

4.00% p.a. 

98% 
98% 

12.32% p.a.
12.06% p.a. 
6.08% p.a. 

4.00% p.a.

98% 
98% 

2007 

2006 

AT 83 
RRB 44 
RRB 44 
Prudential 
First age with entitlement to one of
the benefits 
95% 
Wives are 4 years younger than 
husbands 

AT 83 
RRB 1944 
Modified RRB 1944 
Prudential 
First age with entitlement to one of
the benefits 
95% 
Wives are 4 years younger than 
husbands 

For the 2007 actuarial valuation, to conform the study to the current long-term economic circumstances, the Company changed its discount rate to 
10.85% per year, from 12.32% per year as a result of an interest rate of 6.59%, plus an annual inflation rate of 4%.  

The  number  of  active  participants  at  December  31,  2007  and  2006  was  15,881  and  16,681  respectively.  The  number  of  inactive  participants  at
December 31, 2007 and 2006 was 4,245 and 3,692 respectively. 

The evaluation of “SABESPREV” costing plan is made by an independent actuarial expert (Assistants), based on different assumptions than those
adopted for purposes of ascertaining benefits to employees, as set forth in CVM Resolution no. 371. SABESPREV’s technical deficit at December
31, 2007 is R$ 319,463 (2006 - R$ 491,391). The calculation is substantially different as for the actuarial method in calculating risk benefits before
retirement, with sharing to “SABESPREV” and capitalization for the purpose of meeting CVM Resolution no. 371. 

As permitted by CVM Resolution No. 371, the Company has elected to amortize the actuarial liability R$ 266,074 at December 31, 2001 over five
years using the straight-line method beginning in 2002. The amortization of the transition obligation for past service cost is being recorded as an
“Extraordinary Item”, net of tax effects, in the statement of income for the year as follows: 

Extraordinary item 
Deferred income and social contribution taxes 
Net extraordinary item 

Liabilities on December 31, 2001 
Extraordinary item recorded for the period from 2002 to 2006 

F-39 

2007 

2006 

2005 

-
-
-

53,215 
(18,093)
35,122 

53,215 
(18,093)
35,122 

266,074 
(266,074)

 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The Sponsor and the SABESPREV are in process of negotiation so that the technical deficit is resolved, by changing from the Defined Benefit Plan
to Variable Contribution Plan. Management expects not to incur in additional costs resulting from the change of the referred plans. 

14. PROFIT SHARING AND BONUS 

As a result of negotiations held by the Company with entities representing the employees, a Profit Sharing Program was implemented. 

In December 2005 the Company made an advance payment of R$ 22,906, equivalent to 50% of one month’s payroll. The payment of the remainder
was made in August 2006 in the amount of R$ 25,082. 

The  amount  of  R$  54,128,  referring  to  the  period  from  January  through  December  2006,  was  paid  in  February  2007.  The  Company  paid  in
November, 2006, a bonus of R$ 31,035 referring to the performance evaluation for the year 2006.  

For  2007  it  was  considered  the  period  from  January  to  December,  2007,  with  the  payment  of  the  amount  corresponding  to  up  to  one  month’s 
payroll, depending on achievement of targets.  

In December 2007, the Company paid an advance of R$17,361, with the supplementary payment, of R$ 509 made in April, 2008.  

15. PROVISIONS FOR CONTINGENCIES 

(a) Provisions for contingencies: 

The Company is party to a number of claims and legal proceedings arising in the normal course of business, including civil, labor, environmental,
tax and other matters. The Company has accrued amounts deemed by its legal advisors and its management to be enough to cover probable losses.
As of December 31, 2007 and 2006, these provisions are as follow, in accordance with the nature of the respective cases: 

Customer claims (i)
Contractor claims (ii)
Other civil claims (iii)
Tax claims (iv)
Labor claims (v)
Environmental claims (vi)
Subtotal 
Escrow deposits 
Total, net of escrow deposits 

Current portion 
Non current portion 

2007 

2006 

526,302 
174,556 
127,890 
34,491 
61,747 
50,075 
975,061 
(29,805)
945,256 

290,172 
655,084 

273,258 
168,547 
76,909 
21,162 
71,213 
65,988 
677,077 
  (19,525)
657,552 

2,294 
655,258 

F-40 

 
 
 
 
 
 
 
 
 
 
 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Changes to the provision for contingencies for the year ended in December 31, 2007 are demonstrated below: 

Table of Contents

December
31, 2006

273,258 
168,547 
76,909 
21,162 
71,213 
65,988 
677,077 
      (19,525)
657,552 

Additions

Payments

198,570 
9,838 
36,131 
4,477 
8,112 
9,827 
266,955 
(26,276)
240,679 

(46,408)
(14,863)
(26,302)
(3,042)
(27,102)
(34,281)
(151,998)
17,031 
(134,967)

Interests,
  Monetary

Adjustment 
and
Reversals

  December
31, 2007

100,882 
11,034 
41,152 
11,894 
9,524 
8,541 
183,027 
(1,035)
181,992 

526,302 
174,556 
127,890 
34,491 
61,747 
50,075 
975,061 
(29,805)
945,256 

Customer claims 
Contractor claims 
Other civil claims 
Tax claims 
Labor claims 
Environmental claims 
Sub-total 
Escrow deposits 
Total 

(b) Lawsuits with possible likelihood of loss 

The lawsuits in course in administrative and judicial levels, in different courts, where the Company is the contrary party, considered by its legal
counsels of possible likelihood of loss, not being, for this reason, provisioned in the financial statements, are distributed as follows: 

Customer claims (i)
Contractor claims (ii)
Other civil claims (iii)
Tax claims (iv)
Labor claims (v)
Environmental claims (vi)
Total 

(c) Summary of claims and assessments 

(i) Customer claims 

2007 

2006 

709,000  
254,100  
195,300  
199,900  
70,400  
514,400  
1,943,100  

789,300 
198,500 
141,600 
104,900 
43,700 
192,400 
1,470,400 

Approximately 1,170 lawsuits were filed by commercial customers, which claim that their tariffs should be equal to the tariffs of another consumer
category, and therefore claim the refund of the amounts collected by SABESP. The Company was granted both favorable and unfavorable final
decisions  at  several  courts,  and  recognized  a  provision  when  the  likelihood  of  loss  is  considered  probable.  In  2007,  the  volume  of  the  lawsuits
decisions  allowed  the  management  to  evaluate  the  contingency  process  and  based  on  this  evaluation,  the  Company  quantified  the  lawsuits
involving customers, considering the most recent history of favorable and unfavorable court decisions to improve its disbursement estimate. The
result of this process evidenced the need to increase the provision by approximately R$253 million, net of exclusions. 

(ii) Contractor claims 

Contractors’  claims  include  lawsuits  filed  by  some  building  companies  alleging  an  underpayment  of  monetary  adjustments,  withholding  of
amounts  related  to  the  understatement  of  official  inflation  rates  after  the  Real  economic  plan,  and  the  economic  and  financial  imbalance  of  the
agreements. These lawsuits are in progress at different courts and a reserve is recognized when the likelihood of loss is considered probable. The
R$55,600 increase in lawsuits whose likelihood of loss is considered possible is related to the inclusion of monetary adjustment, interest and fees
for the year. 

F-41 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(iii) Other civil claims 

The Company is a party to several civil lawsuits related to indemnities for property damage, pain and suffering, and loss of profits allegedly caused
to third parties. As of December 31, 2007, the Company recognized provisions of R$127,890 (R$76,909 in 2006) for claims whose likelihood of
loss is considered probable. There was an increase both in lawsuits with probable and possible risk of loss, arising from the increase in lawsuits and
the review of the expected outcomes, comprising monetary adjustment, interest and fees for the year. 

The  Association  of  Distinguished  Bars  and  Restaurants  (Associação  de  Bares  e  Restaurantes  Diferenciados—ABREDI),  has  initiated  several 
lawsuits to challenge the 10.0% penalty fee we charge on late water and sewage payments. In several of these cases, lower courts have dismissed
the  lawsuits  based  on  the  lack  of  standing  by  the  plaintiff  to  initiate  such  a  lawsuit.  In  other  cases,  the  lawsuits  were  dismissed  because  a  civil
public action with respect to the  same matter was already being heard at the civil courts  of the  State  of São  Paulo. In  this  civil public action, a
decision was granted against us and we appealed against this decision and a final decision is still pending. Notwithstanding these legal proceedings,
we have reduced to 2.0% the penalty fee we charge on late bill payments by all of our customers. 

The São Paulo State Public Attorney’s Office has filed a public civil action against Sabesp, seeking to ensure a water supply in the municipality of
Guarujá within accepted levels of potability and in accordance with current legislation. The lawsuit also seeks the company be sentenced to start
building  ETA  (Water  Treatment  Station),  restore  fees  charged  to  consumers  and  pay  compensation  for  moral  and  property  damages  caused  by
allegedly improper water consumption. An injunction was granted and we appealed against such decision. However, the appellate court rejected the
appeal. Sabesp has offered a defense and the lawsuit is currently in discovery phase. We have not estimated the disbursement yet for there are no
sufficient data to estimate the amounts. We evaluated this demand as a possible loss.  

(iv) Tax Claims  

The provision for tax contingencies refers mainly to issues related to tax collections challenged due to differences in the interpretation of legislation
by the Company’s legal counsel.  

In 2006, the Federal Revenue Service, by means of a tax execution, audited the Company’s compliance with the tax obligations related to income 
and  social  contribution taxes for  calendar  2001,  and  recognized taxes payable  in  the amount  of  R$277 million  (R$298 million  adjusted  through
December  31,  2007).  The  Company  filed  a  timely  objection  and  will  appeal  against  the  tax  assessment  at  administrative  level  and  in  courts.
According  to  its  legal  counsel,  the  likelihood  of  loss  in  approximately  90%  of  this  administrative  proceeding  is  considered  remote  and  10%
possible.  

The company filed for a preliminary injunction to challenge the revocation of the exemption from tax service granted by the Municipality of São
Paulo, under a City Law enacted in 2002. In April 2003, the exemption request was granted under an injunction determining the suspension of tax
payments. In May 2005, the courts issued a decision overruling the injunction. In July 2005, SABESP filed an appeal to ensure the preliminary
injunction granted remained in effect. There is no final decision on the lawsuit, and the likelihood of loss is considered possible. Concurrently, on
September  18,  2006,  the  São  Paulo  Municipal  Finance  Department  issued  a  tax  deficiency  notice,  against  which  the  Company  filed  timely
administrative objection, with subsequent rejection of the appeal filed with lower courts, whose involved amount is estimated at R$70.0 million
(R$120 million as adjusted through December 31, 2007). We evaluated this demand as a possible loss.  

The Company filed lawsuits against the Municipalities of Bragança Paulista and São Paulo due to the collection of a charge on the use of public
areas  to  install  water  and  sewage  networks  used  for  the  water  supply  and  sewage  services  provided  to  these  municipalities.  In  the  lawsuit  filed
against the Municipality of Bragança Paulista, the Company was granted a preliminary injunction this charge and preventing the Municipality from
collecting any current or future amounts related to such charge until there is a final decision on the merit of the lawsuit. In June 2005, the lower
court decided favorably to the Company and the initial remedy was maintained. The Municipality appealed against the decision, which is awaiting
judgment by the Court of Appeals. As regards the lawsuit filed against the Municipality of São Paulo, the lower court issued a decision confirming
the legality of the municipal charge. The Company filed an appeal and awaits judgment. Subsequently, a new Law was approved to implement the
collection  of  a  charge  on  the  use  of  public  areas  in  the  city  of  São  Paulo.  In  April  2004,  the  Company  filed  for  an  injunction  to  suspend  the
collection of the municipal charge. The injunction was granted by the lower court and confirmed when the decision was issued, which recognizes
the charge as undue. The Municipality filed an appeal and is awaiting judgment by the Court of Justice. The Company, based on the assessment of
its legal advisors, did not recognize any provision for this municipal charge. We evaluated this demand as a possible loss.  

F-42 

Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

All tax collection proceedings involving the Company and the Municipality of Ferraz de Vasconcelos were reviewed, resulting in an increase of
approximately  R$39  million,  changing  the  likelihood  assessment  from  remote  to  possible.  On  December  31,  2007,  the  amount  estimated  as
possible loss is R$51 million. 

(v) Labor claims 

The Company is a party to labor lawsuits, involving issues such as overtime, 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 a provision was recognized.  

On  October  6,  1989,  Sintaema  (Union  of  the  Water,  Sewage,  and  Environmental  Workers  of  São  Paulo)  filed  a  lawsuit  against  the  Company
claiming the payment of salary differences arising from health hazard premium from September 1987 to February 1991. On December 19, 1997,
the Superior Labor Court issued a decision unfavorable to SABESP. The Company appealed against this decision, which was maintained by the
Superior Labor Court. Sintaema started the execution of the court decision and the court expert report presented on February 21, 2007 determined
the payment of R$28,313 (R$30,735 adjusted through December 31, 2007). The Company’s legal counsel considered the risk of loss as probable.  

As  of  March  2008  we  are  party  to  approximately  2,939  labor  proceedings  and  one  public  civil  action  filed  by  some  of  our  current  and  former
employees.  These  lawsuits  seek  to  negotiate  certain  benefits  granted  by  Law  4,819,  as  of  August  26,  1958.  Approximately  40  plaintiffs  are
claiming the same benefits at the civil court and in these cases, we allege that the São Paulo State government, and not us, should be responsible for
the  payments  due  to  the  plaintiffs.  In  the  public  civil  action  filed  against  us  and  the  State  Treasury,  an  injunction  was  granted  in  lower  court
requiring us to pay the benefits foreseen in Law 4,819/58 to all the plaintiffs. A lower court decision was rendered on April 5, 2005, granting relief
to such proceeding and confirming the injunction granted to the effect that we are to continue to pay the benefits. We have appealed at the Regional
Labor Court. There are currently other pending individual lawsuits discussing the same claims, and up to the date of this report neither Sabesp nor
the São Paulo State Government had reached an agreement as to the indemnification amounts related to these proceedings.  

(vi) Environmental Claims 

Refers  to  several  administrative  proceedings  and  lawsuits  filed  by  government  entities,  including  Companhia  de  Tecnologia  de  Saneamento
Ambiental – Cetesb and the São Paulo State Public Prosecution Office for the imposition of fines for environmental damages allegedly caused by 
the Company. 

Significant litigation involving the São Paulo State Public Prosecution Office is as follows: 

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Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(a)  On  April  4,  2002,  the  Company  was  included  in  a  public  action  filed  by  the  District  Attorney’s  Office  of  São  Bernardo  do  Campo  for  the 
remediation of damages caused by slurry discharges made by the Company’s water treatment facilities, and demanding the discontinuation of such 
discharges.  The  lower  court  issued  a  decision  favorable  to  the  Company,  against  which  an  appeal  was  lodged.  The  Court  of  Appeals  decided
against  the  Company  and  ordered  it  to  discontinue  discharging  waste  within  one  year  from  the  date  the  decision  is  considered  final,  provide
environmental remediation within two years after the date set as final, or pay a daily fine of R$10,000 and compensation for the environmental
damage caused. The Company’s legal counsel assessed the risk of loss as probable and the reserve recognized represents the adjusted amount of
R$163,  which  reflects  the  amount  attributed  to  the  lawsuit;  (b)  Public  lawsuit  filed  by  the  São  Paulo  State  Public  Prosecution  Office  against
SABESP to force the Company to discontinue the discharge of untreated sewage in the Borá river or any other river in the Borá municipality, and
invest in the water supply and sewage treatment system of the same municipality by building the necessary facilities. The court expert estimated the
damages at R$41,022, which is not yet final as there is no court decision on this lawsuit; (c) On February 25, 2003, an environmental public lawsuit
was  filed  by  the  Public  Prosecution  Office  against  SABESP  to  force  the  Company  to  discontinue  the  discharge  of  untreated  sewage  in  the  Boa
Esperança river or any other river in the Lutécia municipality, and invest on the water and sewage treatment system of the same municipality by
building the necessary facilities, and pay indemnity for the environmental damages caused. The court expert estimated the damages at R$82,779,
which is not yet final as there is no court decision on this lawsuit. Lawsuits (b and c) are at settlement stage with the Public Prosecution Office and
the Company recognized a reserve in the amount of the expected disbursement, budgeted in the action plans for the Lutécia municipality at the
adjusted  amount  of  R$3,889,  related  to  Reforesting,  the  Urban  Sewage  Master  Plan,  and  the  Lutécia  Sewage  System  and  Recyclable  Material
Receiving Center; the action plan for the Borá municipality includes the adjusted amount of R$744, which refers to Reforesting, the Urban Sewage
Master Plan, and the Resort Recovery and Adaptation. (d) Public civil action filed by the Public Attorney’s Office against Sabesp us and the Cotia
Mayor’s Office seeking individual and joint adverse judgments of the defendants in relation to: (i) the definitive permanent cessation of releasing
untreated water affluents into the Cotia River or its tributaries, under the penalty of subject to a daily fine in the case of noncompliance; (ii) the
treatment  of  sewage  prior  to  releasing  it  into  the  Cotia  River,  under  the  penalty  of  a  daily  fine,  in  the  event  of  non-compliance;  (iii)  the  full 
restoration of soil, of surface and underground water bodies and of vegetation to their original condition, under the penalty of a daily fine, in the
event of non-compliance and (iv) the payment of compensation for environmental damages caused to soil, to water sources and to underground and
surface  water  bodies  that  cannot  be  recovered.  The  appellate  court  rendered  favorable  decisions  to  us  with  respect  to  items  (i),  (iii)  and  (iv)
mentioned above. According to evaluations by the court’s technical expert, compensation for environmental damages shall be was R$5.8 million as
of October 17, 2006. (10/17/2006). This amount is still under discussion and its approval is subject to a final decision by the court. Our in-house 
counsel has considered it as a probable loss. In December 2007, we recorded the total provision in the amount of stood as R$ 6.9 million. (e)The
São Paulo State Public Prosecution Office filed a public lawsuit against SABESP, AES Eletropaulo, Daee, Cetesb and the São Paulo State Treasury
Secretariat  seeking  conviction  of  these  entities  for  the  alleged  environmental  damages  caused  because  of  the  inversion  of  the  Pinheiros  River
stream  to  the  Billings  Dam.  The  lower  court  decision,  based  on  an  experts’  report  that  estimated  damages  at  R$284,525,  jointly  convicted  the 
parties to pay this amount, monetarily adjusted since June 2,000 through December 2007, totaling R$491,575. SABESP, Daee, AES Eletropaulo,
Cetesb and the State Treasury Secretariat filed an appeal with the Appeal Court and are awaiting a decision, as they understand that there is no
factual  evidence  of  the  damages.  There  is  no  guarantee  that  this  joint  conviction  will  be  maintained  by  the  Appeal  Court.  Due  to  the  recent
decision, this lawsuit, previously classified as of remote loss, is now assessed by the Company’s legal counsel as of possible loss. (f) A public civil 
action filed by the Piracicaba Civil Entities Coordination Board against Sabesp us and the National Water Agency seeking remedy for damages
caused by the use of the Piracicaba, Jundiaí and Capivari rivers’ basin to supply the São Paulo Metropolitan Region through the Cantareira Water
System for nearly 30 years. The value attributed to the claim is R$11.4 billion (12/10/2003) updated to R$ 15.1 billion on December 31, 2007. This
lawsuit is in its initial stage and is pending judgement from the lower court. So far no value has been set for the damages alleged. Our in-house 
counsel has evaluated the case as a remote loss and therefore, no provisions have been made referring to this lawsuit.  

The Company is a party to other environmental lawsuits in municipalities where it operates, arising from the discharge of untreated waste, assessed
as  probable  and  possible  risks  of  loss  by  its  legal  counsel.  The  amounts  recognized  in  reserves  do  not  always  represent  the  final  amount  to  be
disbursed as indemnity of alleged damages, in view of the current stage in which the such lawsuits are and Management’s ability to reasonably 
estimate the amounts of future disbursements. As of December 31, 2007, total provision represents the R$50,075, already including the amounts
referred to in items (a), (b), (c) and (d). 

(vii) Settlements reached in 2007  

a)  The  Company  reached  a  settlement  with  the  Municipality  of  Bragança  Paulista  related  to  the  tax  collection  proceeding  for  the  payment  of
R$13,105, adjusted through December 6, 2007, arising from fines imposed by the City Health Department. The Municipality granted a discount
totaling R$4,323 on interest and fine. On December 27, 2007, part of the Municipality’s debt to SABESP was offset against the fines imposed by 
the Municipality Health Department, in the amount of R$8,782, and the remaining debt balance from unpaid tariffs, in the amount of R$1,080, was
divided into 99 installments, monetarily adjusted through the settlement execution date.  

b) The Company reached a settlement with the Public Prosecution Office for the construction of the Domestic Sewage Treatment System facilities
in the municipality of Boituva and Environmental Compensation within 54 months as from the signature of the settlement, estimated at R$12,776.
From this amount, R$3,933 will be built by municipality contractors and R$8,843 will be the responsibility’s of SABESP.  

c) The Company reached a settlement with the Public Prosecution Office for the construction of the Domestic Sewage Treatment and Deviation
System  facilities  in  the  municipality  of  Santa  Cruz  do  Rio  Pardo  and  Environmental  Compensation  for  the  recovery  of  riverbank  forest  of  the
Mandaguari  river,  which  total  R$1,250.  The  start  of  the  riverbank  forest  recovery  project  is  scheduled  for  February  2008,  to  be  completed  by
February 2012. 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

d) Public lawsuit filed with the Paraguaçu Paulista District (1st Court of Paraguaçu Paulista) seeking compensation for and discontinuation of the
environmental  damages  allegedly  caused  by  the  discharge  of  untreated  sewage  by  Company  in  the  Alegre  river,  located  in  the  municipality  of
Paraguaçu Paulista. The lower court judge issued a decision unfavorable to the Company, ordering the Company to: (a) discontinue the discharge
of untreated sewage in the Alegre river; (b) invest in the water and sewage treatment systems in the municipality of Paraguaçu Paulista; and (c)
paid  an  indemnity  for  the  remediation  of  the  environmental  damages,  arbitrated  by  the  court  at  the  adjusted  amount  of  R$168.9  million.  The
decision also determined that failure to comply with items (a) and (b) above subjects the Company to the payment of daily fines. The Company
appealed against the decision. On September 21, 2006, the Company’s appeal was judged by the São Paulo State Court of Justice. The Company
reached  a  settlement  with  the  Public  Prosecution  Office  of  R$42,789  and  54  months  to  complete  construction,  of  which  R$34,070  refers  to
compensation for environmental damages.  

(viii) Other proceedings related to the Concession 

In  connection  with  discussions  we  had  with  the  municipality  of  Presidente  Prudente,  we  filed  a  claim  against  the  municipality  seeking  a  court
decision determining the continuation of the concession contract that we have entered into with that municipality until the indemnification payment
owed to us in connection with the return of water and sewage treatment facility of Presidente Prudente is made. The lower court issued a decision
in  our  favor  to  the  effect  that  we  still  continue  to  provide  services  in  the  municipality  until  the  indemnification  provided  for  in  the  concession
contract is paid to us. 

On December 2, 1997, the Municipality of Santos enacted a law taking over the Company’s water and sewage systems in Santos. In response, the 
Company filed an action seeking an injunction that stayed this takeover. The injunction was denied by the lower court; however, this decision was
later  overruled  by  the  São  Paulo  State  Court  of  Justice,  which  granted  an  injunction  suspending  this  law.  The  lower  court  issued  a  decision
favorable to the Company, and the Municipality of Santos filed an appeal against such decision. This decision was sustained by the Appeal Court;
however, it is not final.  

The Municipality of Itapira declared the nullity of the concession agreement and filed a Repossession Action, which was accepted by the court.
SABESP  filed  an  appeal  against  this decision  which is pending  judgment,  and  the  Company,  due  to  the  lawsuit  filed  against  said  Municipality,
withdrew the appeal because of previous appreciation of the same matter. 

The Municipality of Tuiuti filed a declaratory action claiming the recognition of the lack of a legal relationship with SABESP that would allow the
Company to continue providing water supply and sewage services in the Tuiuti municipality, and to the determine the takeover by the Municipality
of  such  utility  services.  SABESP  filed  a  counterclaim  to  have  the  existence  of  a  legal  relationship  between  the  parties  declared  and  seeking
compensation for the investments made. The lawsuit is at fact-finding phase, so that an inspection can be conducted.  

The  Municipality  of  Cajobi  filed  a  Repossession  Action  to  regain  control  over  the  water  supply  and  sewage  services  before  the  agreement
termination and termination of the concession, which occurred on November 13, 2006, and the consequent return to the Concession Grantor of all
returnable assets, rights and privileges transferred. The action also seeks convicting SABESP to the payment of damages for the amounts received
as  water  supply  and  sewage  tariffs  that  the  Municipality  did  not  receive  from  the  provision  of  these  services,  since  the  enactment  of  Municipal
Decree No. 767, of November 13, 2006 (which provides for the repossession of the services granted), and the use of the concession assets. The
lawsuit is in fact-finding phase. 

The Municipality of Monte Alto filed a Repossession Action combined with a claim for damages and declaration of termination of the concession
agreement, as it intends to resume the provision of the water supply and sewage services before the termination of the concession, which occurred
on October 23, 2006, and the consequent return to the Concession Grantor of all returnable assets and the management of the services under the
concession agreement. The injunction was granted by the Fourth Public Law Chamber of the Court of Justice based on the bill of review filed by
the Municipality and fulfilled on November 17, 2006. The lawsuit is in fact-finding phase.  

F-45 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The Municipality of Araçoiaba da Serra filed a Repossession Action to obtain an injunction that authorized the Municipality to enter the facilities
related to the concession, including all the chattels and properties related to the water supply and sewage services, and start to manage, operate and
exploit  such  services,  before  the  termination  of  the  concession  on  September  23,  2006.  At  the  end,  the  Municipality  claims  the  definite
repossession, ensuring the return of all the assets, rights and privileges previously transferred to SABESP. The injunction was initially granted and
afterward maintained by the Appeal Court, granting the Municipality the right to remain in charge of the services. In addition, SABESP filed for a
writ of prevention requiring evidence be produced in advance. The lawsuit is in fact-finding phase. 

The municipality of Sandovalina has brought a legal action against us seeking to (1) obtain the termination of the concession entered into with us
and (2) obtain remedies for environmental damage and alleged losses caused to the municipality due to our failure to provide sewage treatment, as
well as other damage caused to public property. We are also seeking the payment of a contractual indemnification based on the early termination of
the contract. We are currently operating the water and sewage treatment facility of Sandovalina, and the lawsuit is still in the fact-finding phase. 
We have not made any provisions for this proceeding. The lawsuit is currently suspended while the parties discuss the procedures. No provisions
have been made for this proceeding.  

16. SHAREHOLDERS’ EQUITY 

(a) Authorized capital 

The Company is authorized to increase its capital up to a maximum of R$ 4,100,000 registered common shares without par value, upon resolution
of the board of directors. 

In  case  of  a  capital  increase,  issue  of  convertible  debentures  and/or  share  warrants  though  private  placement,  the  shareholders  shall  have
preemptive rights proportional to the number of shares held at the time, in compliance with Article 171 of Law No. 6,404/76. 

(b) Reverse stock split  

The Shareholders’ Meeting held on April 30, 2007, approved the reverse stock split proposal. The shares were grouped at the ratio of 125-for-1 and 
since June 4, 2007 are traded in Brazilian reais per share. Capital started to be represented by 227,836,623 registered common shares, without par
value, and SABESP’s capital remains unchanged.  

Concurrently with the reverse stock split, the American Deposit Receipts (ADRs) started to be traded at the ratio of 1 ADR for each to 2 shares.  

(c) Subscribed and paid-up capital 

Subscribed and paid-up capital is represented by 227,836,623 common shares, without par value, distributed as follows:  

Shareholders 

Number of shares 

% 

Number of shares 

% 

2007 

2006 

Secretaria da Fazenda 
Companhia Brasileira de Liquidação e Custódia 
The Bank Of New York ADR Department 
(Equivalent to stock )(*)
Other 

(*) each ADR equals 2 shares 

114,508,087 
61,690,601 

51,409,636 
228,299 
227,863,623 

F-46 

50.26 
27.08 

22.56 
0.10 
100.00 

14,313,511,867  
7,722,535,287  

6,415,657,250  
27,873,423  
28,479,577,827  

50.26 
27.11 

22.53 
0.10 
100.00 

 
 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(d) Distribution of earnings 

Shareholders are entitled to a mandatory minimum dividend distribution of 25% of adjusted net income, calculated in conformity with Brazilian
Corporate  Law.  This  requirement  can  be  met  through  payments  made  in  the  form  of  dividends  and  interest  on  shareholders’  equity  (net  of
withholding  tax),  to  the  extent  amounts  are  available  for  distribution.  Dividend  distributions  are  limited  to  retained  earnings  as  determined  in
accordance with BR CL. At December 31, 2007, as required by the CVM, management designated the retained earnings balance to a discretionary
investment reserve account (see (f) below). 

For purposes of BR CL, and in accordance with the by-laws of the Company, adjusted annual net income is an amount equal to the Company’s 
annual net income adjusted to reflect allocations to or from (i) statutory legal reserve, (ii) an equity contingency reserve for anticipated losses, if
any, and (iii) an unrealized revenue reserve, if any. The calculation of the mandatory minimum dividends for 2007 is as follows:

Net income for the year 
(-) Legal reserve 5% 
Net income 

Mandatory minimum dividend 

1,048,703 
52,435 
996,268 

249,067 

The Company by-laws also provide for distribution of interest on shareholders’ equity as an alternative form of distribution to shareholders. The 
interest rate is limited to the variation in the TJLP during the applicable period and the deductible distribution cannot exceed the greater of 50% of
net  income  (before  distribution  and  deductions  for  income  taxes)  for  the  period  or  50%  of  retained  earnings.  Distribution  of  interest  on
shareholders’ equity is a tax-deductible expense for both income tax and social contribution purposes. The amount paid to shareholders as interest
on shareholders’ equity, net of any withholding tax, is taken into account in determining the mandatory dividend. 

In 2007, the Company accrued interest on shareholders’ equity attributed to dividends in the amount of R$279,494, net of withholding income tax
in the amount of R$21,250. In 2006, the Company declared interest on shareholders’ equity, in lieu of dividends, in the amount of R$ 251,238, net 
of withheld income tax in the amount of R$ 19,603. In 2005, the amount was R$ 324,461 net of income tax of R$ 23,755 Interest on shareholders’
equity was calculated in conformity with article 9 of Law No. 9249/95, at the Long-term Interest Rate (TJLP); this interest was originally recorded 
in “Financial expenses” for income and social contribution tax deductibility purposes and subsequently, for presentation purposes, was reflected
directly in “Shareholders’ equity”. 

(e) Capital reserves 

Capital  reserve  comprises  tax  incentives  and  donations  from  government  agencies  and  private  entities,  which  increased  R$  17,565  in  2007  (R$
27,870 in 2006). 

The tax incentive reserve results from an option to invest in the capital stock of companies undertaking specified government-approved projects. In 
lieu  of  paying  part  of  the  income  tax  due,  the  amount  is  credited  to  income  tax  and  subsequently  appropriated  from  retained  earnings  to  this
reserve. 

The donations reserve reflects the value of assets received from government entities, principally enabling the Company to provide service access to
properties. No shares are issued in exchange nor other remuneration provided in connection with assets received. These donations are recorded as a
direct benefit to shareholders’ equity. 

(f) Investment reserve 

The Investment reserve is comprised specifically of internal funds for expansion of water supply and sewage service systems.  

F-47 

 
 
 
 
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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The following summarizes the allocation of net income to the investment reserve for the years ended December 31,  

Net income 

(+) Revaluation reserve realization 
(-) Interest on shareholders’ equity 
(-) Legal reserve 5% 
Investment reserve 

2007 

1,048,703  

87,670  
300,744  
52,435  
783,194  

2006 

778,905 

102,272 
270,841 
38,946 
571,390 

At  the  Shareholders'  Meeting  held  on  April  29,  2008,  Management  proposed  the  transfer  of  the  retained  earnings  balance  of  R$783,194  to  the
Investment reserve account, to cover the needs of investments with own funds, as planned in the Capital Budget.Also the Management proposed
the capitalization of part of the profit reserve in the amount of R$2,800,000, as this reserve exceeded capital. The proposed was approved and after
the capitalization of the profit reserve, capital will be R$6,203,688.  

(g) Legal (statutory) reserve 

Under Brazilian Corporate Law, the Company is required to record a legal reserve to which it must allocate 5% of the adjusted net income each
year until the amount of the reserve equals 20% of paid-in capital. Accumulated deficit, if any, may be charged against the legal reserve. 

17. INSURANCE COVERAGE 

Insurance policies held by the Company provide the following coverage, taking into account the risks and nature of the related assets: 

Type of insurance 

Engineering risk 
Fire
Civil liability - officers and employees 
Civil liability - construction in progress 
Civil liability - operations 
(*) Unaudited information

The Company does not have an environmental and loss of profits insurance.  

18. FINANCIAL INSTRUMENTS AND RISK 

Insured amount - 
R$ 
(*)

Premium 
(*)

288,494  
307,743  
80,000  
11,051  
1,500  

644 
331 
3,000 
482 
160 

In  accordance  with  CVM  Instruction  No.  235/95,  the  Company  estimated  the  fair  value  of  their  financial  instruments,  using  available  market
information  and  appropriate  estimation  methodologies.  However,  considerable  judgment  is  required  to  interpret  market  data  and  to  develop  the
estimates of fair value. Accordingly, the estimates presented are not necessarily indicative of the amounts that could be realized in a current market
exchange. The use of different market assumptions and/or valuation methodologies may have a material effect on the estimated fair values.  

As of December 31, 2007 and 2006, the carrying amounts and fair values of the main financial instruments are as follows:  

F-48 

 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Book 
value 

December 31, 2007 
Market 
value 

Unrealized 
gain/(loss)

Book 
value 

December 31, 2006 
Market 
value 

  Unrealized 
gain/(loss)

Financial investments (i)
Loans and financing (ii)

392,164 
(5,685,235)
(5,293,071)

392,164 
(5,702,906)
(5,310,742)

-
(17,671)
(17,671)

248,088 
(6,326,729)
(6,078,641)

248,088 
(6,041,812)
(5,793,724)

-
284,917 
284,917 

(a) Fair value of financial instruments  

The Company’s main asset and liability financial instruments as of December 31, 2007 are described below, as well as their measurement criteria:  

(i) Temporary cash investments – The fair value of these assets approximates the amounts stated in the Company’s balance sheets.

(ii) Loans and financing – Liability financial instruments are divided into two groups:  

a.  Market  debts  –  Debts  incurred  to  obtain  funds  in  the  market  to  cover  possible  cash  requirements  of  the  Company.  The  financial  instruments
composing this group are debentures, bonds and FIDC (Receivables Investment Funds), placed in the financial market through book building or
similar procedures, in which yield rates demanded by investors are defined at the time of negotiation.  
The  fair  value  measurement  criteria  adopted  by  the  Company  for  these  financial  instruments  was  the  UP  (unit  price)  average-deviation  method
used in the last negotiations, in 2007, carried out in the secondary market in relation to the average UP in the curve. 
The  information  necessary  for  this  measurement  was  extracted  from  the  following  sources:  SND  –  Sistema  Nacional  de  Debêntures  (National 
Debenture System), BovespaFix and Bloomberg.  

b.  Institutional  debts  –  Debts  incurred  for  the  purpose  of  financing  a  project  related  to  SABESP’s  corporate  purpose:  water  supply  and  sewage 
works. 
This  financing  has  long-term  features,  at  specific  interest  rates  defined  by  development  agencies  (Caixa  Econômica  Federal,  National  Bank  for
Economic and Social Development, Fehidro), and multilateral agencies (IDB, BIRD, JBIC), which prevents us from measuring this financing at
fair value.  

(b) Exchange rate risk  

This  risk  arises  from  the  possibility  that  the  Company  may  incur  in  losses  due  to  exchange  rate  fluctuations,  which  would  increase  the  liability
balances of foreign currency-denominated loans and financing obtained in the market and the related financial expenses. The Company does not
have  hedge  or  swap  contracts  to  hedge  against  this  risk,  in  view  of  the  amounts,  costs  involved  and  opportunities.  However,  when  possible,  it
makes advance purchases of foreign currencies and obtains funding in local currency, as a way to protect itself against exchange rate fluctuations. 

A significant portion of the Company’s debt is denominated in US dollar, in Yen and other foreign currencies, totaling R$1,242,288 (Note 10). The
Company’s net exposure to the exchange rate risk as of December 31, 2007 is summarized as follows:  

Loans and financing 

        In thousands 

December 31, 2007 

December 31, 2006 

US$ 

Yens 

US$ 

Yens 

670,151 

2,654,422 

676,142 

652,814 

F-49 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(c) Interest rate risk 

This  risk  arises  from  the  possibility  that  the  Company  may  incur  losses  due  to  interest  rate  fluctuations  and  indices  that  increase  their  interest
expenses  on  loans  and  financing.  The  Company  has  not  entered  into  any  derivative  contract  to  hedge  against  this  risk;  however,  it  continually
monitors market interest rates, in order to evaluate the possible need to replace its debt. As of December 31, 2007, the Company had R$1,021,118
in loans and financing which were obtained at variable interest rates (CDI and TJLP).  

Another  risk  faced  by  the  Company  is  the  lack  of  correlation  between  the  monetary  adjustment  indices  of  its  debt  and  those  of  its  receivables.
Water supply and sewage treatment tariffs do not necessarily follow the increases in the interest rates affecting the Company’s debt.  

(d) Credit risk 

Credit risk is mitigated by selling to a geographically dispersed customer base.  

No single customer represented more than 10% of the Company’s sales and services rendered in the years ended December 31, 2007, 2006, and
2005.  

19. GROSS REVENUE 

Metropolitan São Paulo 
Regional systems (i)
Total 

2007 

4,888,077 
1,560,134 
6,448,211 

2006 
 4,534,093 
 1,449,919 
 5,984,012 

2005 

4,044,191 
1,312,135 
5,356,326 

(i) Comprises the municipalities served in the country side and coastal area of the State of São Paulo 

F-50 

 
 
 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Table of Contents

20. OPERATING EXPENSES 

Cost of sales and services:
 Salaries and payroll charges 
 General supplies 
 Treatment supplies 
 Outsourced services 
 Electric power 
 General expenses 
 Depreciation and amortization 

Selling expenses:
 Salaries and payroll charges 
 General supplies 
 Outsourced services 
 Electric power 
 General expenses 
 Depreciation and amortization 
 Allowance for doubtful accounts, net of recoveries 

Administrative expenses:
 Salaries and payroll charges 
 General supplies 
 Outsourced services 
 Electric power 
 General expenses 
 Depreciation and amortization 
 Tax expenses 

Total costs of sales and services, selling and 
administrative and expenses:
 Salaries and payroll charges 
 General supplies 
 Treatment supplies 
 Outsourced services 
 Electric power 
 General expenses 
 Depreciation and amortization 
 Tax expenses 
 Allowance for doubtful accounts, net of recoveries 

Financial expenses:
 Interest and other charges on loans and financing - local 
 currency 
 Interest and other charges on loans and financing - foreign 
 currency 
 Interest on shareholders’ equity (note 16 (e))
 Interest on shareholders’ equity (reversal)
 Other expenses on loans and financing 
 Income tax on remittances abroad 
 Other financial expenses 
 Monetary variations on loans and financing 
 Other monetary and foreign exchange variations 
 Interest and monetary variations on provisions for 
 contingencies 

F-51 

2007 

2006 

  2005 

970,065 
121,821 
112,339 
384,114 
472,525 
31,316 
603,516 
2,695,696 

158,338 
5,373 
88,585 
736 
58,554 
4,627 
323,339 
639,552 

137,267 
4,621 
66,300 
1,218 
291,803 
14,406 
43,575 
559,190 

1,265,670 
131,815 
112,339 
538,999 
474,479 
381,673 
622,549 
43,575 
323,339 
3,894,438 

447,046 

66,329 
300,744 
(300,744)
-
6,346 
69,287 
101,310 
8,059 

183,027 
881,404 

966,751  
117,872  
104,466  
326,422  
446,974  
32,560  
621,719  
2,616,764  

159,094  
5,276  
80,467  
768  
58,946  
2,716  
411,918  
719,185  

132,554  
4,574  
79,379  
1,119  
118,646  
17,736  
33,399  
387,407  

1,258,399  
127,722  
104,466  
486,268  
448,861  
210,152  
642,171  
33,399  
411,918  
3,723,356  

851,290 
105,333 
98,823 
297,469 
421,319 
29,840 
572,301 
2,376,375 

142,685 
6,632 
82,354 
941 
46,636 
3,291 
255,292 
537,831 

112,458 
3,973 
94,153 
1,250 
88,027 
20,389 
29,334 
349,584 

1,106,433 
115,938 
98,823 
473,976 
423,510 
164,503 
595,981 
29,334 
255,292 
3,263,790 

517,547  

526,585 

121,194  
270,841  
(270,841)
7  
12,564  
38,642  
86,594  
10,937  

(2,675) 
784,810  

141,844 
348,216 
(348,216)
1,825 
9,450 
35,574 
80,411 
1,611 

76,482 
873,782 

 
 
 
 
 
 
 
 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Table of Contents

Financial income:
 Monerary variation 
 Income from financial investments 
 Sale of third parties shares 
 Interest on accounts receivable 
 Other 

Financial result, net

Foreign exchange, net
 Exchange variations on loans and financing 
 Other exchange variations 
 Foreign exchange income 

21. MANAGEMENT COMPENSATION 

34,281 
51,469 
-
46,618 
41 
132,409 

748,995

(188,411)
87 
286 
(188,038)

28,475  
50,882  
207  
46,383  
-  
125,947  

658,863

(96,071) 
-  
473  
(95,598) 

34,803 
32,292 
-
48,368 
44 
115,507 

758,275

(312,116)
-
845 
(311,271)

Compensation paid by the Company to the members of its board of directors and Management totaled R$ 2,373, R$3,084 and R$ 2,104 for the
years ended December 31, 2007, 2006 and 2005, respectively. An additional amount of R$509, related to the 2007 bonus, was paid in April, 2008.  

22. COMMITMENTS 

(i) Rentals  

Operating, administrative and property leases already contracted require the following minimum payments, as follows:  

2008 
2009 
2010 
2011 
TOTAL 

7,844 
2,456 
660 
314 
11,274 

Lease expenses for the years ended December 31, 2007, 2006 and 2005 were R$ 8,214, R$9,810 and R$ 9,505, respectively. Lease expenses refer
to the following: property rentals, machinery and equipment leases, IT equipment leases, and photocopiers leases.  

(ii) Electricity  

The Company has entered into long-term contracts with electric power providers. The amounts already contracted by the company are shown as
follows:  

2008 
2009 
2010 
2011 
2012 
2013 
2014 
TOTAL 

182,008 
128,947 
128,164 
133,367 
133,730 
78 
39 
706,333 

F-52 

 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Electric power expenses for the years ended December 31, 2007, 2006 and 2005 were R$ 474,762, R$ 449,089 and R$ 423,814, respectively. 

23. AGREEMENT WITH THE MUNICIPALITY OF SÃO PAULO  

On November 14, 2007, the Company and the Municipality of São Paulo (the Parties) entered into an Agreement to establish the conditions that
ensure the stability in the provision of water supply and sewage, and environmental utility services in the city of São Paulo, the main provisions of
which are as follows:  

  the Parties made the commitment to take basic sanitation and environmental actions, complementary to the actions of the Municipality of
São  Paulo,  by  investing  in  the  deployment  and  continuity  of  programs  such  as:  Programa  Córrego  Limpo  (Clean  River  Program)  and 
Programa  de  Uso  Racional  da  Água  –  PURA  (Rational  Water  Use  Program),  the  purpose  of  which  is  to  ensure  a  decrease  in  water
consumption by City government units, ensuring water supply to and the quality of living of the population; 

  starting  November  14,  2007,  all  the  amounts  paid  by  the  Municipality  of  São  Paulo  to  SABESP,  referring  to  consumption  by  City 

departments, agencies, and foundations, net of taxes, will be used in basic sanitation and environmental actions in the municipality; 
  the Municipality made the commitment to resume the payment of consumption bills issued by SABESP, starting November 14, 2007; 
  the Parties shall complete, within 90 days, the projects required to determine the outstanding amounts and prepare the drafts of the Bill to 
obtain the approval of the City Council to the Cooperation Agreement and Metropolitan Program Contract, to ensure the stable provision 
by  SABESP  of  water  supply  and  sewage  services  in  the  municipality,  through  associated  management  of  the  assumed  utility  services,
jointly by the Municipality and the State of São Paulo, pursuant to the general basic sanitation service principles laid down in State Law 
11,445/2007 and related State legislation; 

  the Parties and the State shall conclude, within 90 days after the execution of the Agreement, the terms and conditions of the Cooperation 
Agreement and  Metropolitan  Program  Contract,  to  ensure  the  stable  provision  by  SABESP  of water  supply  and sewage  services  in  the
municipality; 

  the approval of Municipal Authorization Law is an essential condition both for signing the Cooperation Agreement, to be signed by the 

Municipality and the State of São Paulo, and the Metropolitan Program Contract, to be signed by the Municipality and SABESP; 

  after the Bill is submitted to the City Council, the Parties will enter into an instrument from settlement of outstanding debts. A discount in 
the amount of R$120 million on the City’s debts will be granted, under contract (there is no provision of this amount for December 31, 
2007). These debts will be paid free of financial charges arising from interest, fines and monetary adjustment, and part of the debts shall 
be paid by December 2008 and the rest under Municipal Interdepartmental Administrative Rule 01/2005, in seven annual installments; 
  the Parties shall require the termination of the collection lawsuits filed by SABESP, where SABESP shall pay the court fees, and each 

Party shall pay the lawyers’ fees, in an estimated amount of R$1.9 million. 

On February 10, 2008, the Parties decided to extend the agreement for a period equal to the original period, so that the Parties may conclude the
required understandings to settle the outstanding debts and prepare the drafts of the Cooperation Agreement, the Metropolitan Contract Program,
and the Authorization Bill.  

The stages already in progress are the conclusion of the drafts of said instruments, sending the Bill to the City Council, concluding the required
understandings to settle the outstanding debts, and jointly defining the sanitation and environmental actions to be taken.  

On May 9, 2008, the Parties signed the Second Amendment to the Agreement with the Municipality of São Paulo extending the term for an equal
period and providing for automatic renewals, for equal periods, should the parties do not express otherwise.  

24. CONCESSIONS  

As mentioned in Note 1, in 2007 a new regulatory framework was established for the sanitation industry, after the approval of the Sanitation Law
and the Law that creates the São Paulo State Sanitation and Power Regulatory Agency (Arsesp).  

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Consistently with the regulatory framework, SABESP tried to build a new relationship with the municipalities, which resulted in the renewal of
106 agreements and 124 authorization laws approved by city councils.  

In  addition  to  program  contracts,  the  municipalities  entered  into  with  the  São  Paulo  State  Government,  cooperation  agreements  that  permitted
delegating service regulation and inspection to ARSESP.  

Program Contracts 

The  purpose  of  the  program  contracts  entered  into  by  the  municipalities  and  the  Company,  under  the  terms  and  conditions  set  forth  by  the
Cooperation Agreements entered into by the São Paulo State Government and the municipalities, is the provision of municipal utility water supply
and sewage services, exclusively by SABESP, over a thirty-year period, which can be renewed for an equal period.  

i) Tariff  

The service price arrangement shall based on a tariff, adjusted every 12 months, based on the index based on the variation of SABESP costs (IRT –
Tariff  Adjustment  Index)  approved  by  ARSESP.  Connections  to  municipal  buildings  shall  be  classified  under  the  public  use  category  and  shall
enjoy this category’s tariff benefits.  

ii) Economic and financial balance  

Both  the  tariff  and  the  economic  and  financial  terms  and  conditions  of  the  contracts  shall  be  reviewed  every  four  years  to  ensure  the  full
amortization and payment of investments, and operating, management, maintenance and service expansion costs. 

iii) Debt settlement  

SABESP shall collect past-due debts on unpaid water supply and sewage services.  

iv) Exemption from municipal taxes  

The Company shall be exempt from municipal taxes levied on operating areas and facilities. 

v) Regulation and inspection  

The  regulation  and  inspection  of  water  supply  and  sewage  services  delegated  by  the  Municipalities  shall  be  carried  out  by  the  State  Service
Regulatory Agency.  

vi) Contract termination  

Upon contract termination, if the cash flows from services do not allow the full payment of the investments made, including investments existing
prior to the Program Contract, the Municipality can elect one of the following compensation method:  

a) maintain the contract and the cooperation agreement for the period required for payment an amortization;  
b) resume services by paying to SABESP the corresponding compensation;  
c) formalize an agreement for the payment in installments of the compensation due;  

SABESP shall continue providing the services under the same terms of the contract, respecting the agreed economic and financial balance, until the
actual payment of the compensation.  

vii) Returnable assets  

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

All  assets  existing  prior  to  the  program  contracts  are  controlled,  managed  and  owned  by  SABESP,  and  those  acquired  or  built  during  contract
effectiveness, attached or indispensable to the provision of the services, whose ownership and management shall be assigned to SABESP, are an
integral part of the water supply and sewage services.  

viii) Compensation criteria  

The compensation payable by the Municipality to SABESP shall be equivalent to the present value of cash flows for the remaining period on the
date  services  are  resumed  by  the  Municipality,  based  on  a  business  valuation  report  of  the  contract,  monetarily  adjusted,  plus  interest  through
payment date. These contracts can also be measured at book value and other rights and possible losses may also be collected.  

25. AMENDMENT TO BRAZILIAN CORPORATE LAW, EFFECTIVE JANUARY 2008 

On December  28, 2007, Law No. 11,638  was enacted, altering,  revoking and  adding  new  provisions to the Brazilian  Corporate Law, especially
with respect to chapter XV, Fiscal Year and Financial Statements. This Law is effective for fiscal years beginning on or after January 1, 2008 and
was designed primarily to update the Brazilian Corporate Law, so as to enable the convergence of Brazilian accounting practices with international
accounting  standards  (IFRS)  and  allow  the  Brazilian  Securities  Commission  (CVM)  to  issue  new  accounting  standards  and  procedures,  in
conformity with such international accounting standards. 

The changes in Brazilian Corporate Law are applicable to all companies incorporated as corporations, including public companies, and introduce a
new  requirement  for  large  companies  to  prepare  and  report  financial  statements  in  accordance  with  provisions  of  the  Brazilian  Corporate  Law.
Furthermore, private companies may choose to prepare such financial statements in accordance with standards issued by the CVM. 

Certain  of  these  changes  shall  be  applied  as  of  the  beginning  of  the  Company’s  fiscal  year  while  others  are  subject  to  regulation  by  regulatory 
agencies.  

The main changes are summarized as follows: 

  Replacement of the statement of changes in financial position by the statement of cash flows. 

  Requirement for the presentation of a Statement of Value Added. 

  Possibility of maintaining separate accounting records for purposes of complying with tax legislation and reflecting necessary adjustments 

in order to prepare the financial statements in conformity with Brazilian Corporate Law. 

  Creation of the account groups Intangible Assets to permanent assets and valuation adjustments to shareholders’ equity. 

  Standardization of the criteria for measurement and classification of financial instruments, including derivatives. 

  Requirement that periodic review and analysis of the recoverability of amounts recorded in property, plant and equipment, and intangible 

assets. 

  Elimination  of  the  possibility  to  record  the  premium  received  on  issue  of  debentures  and  donations  and  government  investment  grants

(including tax incentives) directly as capital reserves in shareholders’ equity. 

  Tax incentives arising from donations and government investment grants for investments will no longer be classified as capital reserve, 
becoming part of income for the year. The Company’s management may allocate a portion of net income resulting from these incentives 
to the formation of profit reserve and may be deducted from the calculation basis of the mandatory dividend. 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

  Requirement to record under the caption property, plant and equipment those rights in tangible assets that are maintained or used in the 
operations of the Company’s business, including those rights received as a result of transactions that transfer the benefits, risks and control 
of such assets to the Company (e.g., capital lease). 

  Modification of the definition of those assets to be recorded under the caption deferred charges. 

  Adjustments  to  present  value  for  assets  and  liabilities  arising  from  long-term  transactions,  as  well  as  for  significant  short-term 

transactions. 

  Elimination  of  the  revaluation  reserve.  Any  balance  of  existing  revaluation  reserve  shall  be  maintained  until  its  effective  realization  or

reversed by the end of the fiscal year in witch the Law comes into effect. 

The Company considers that even though most of the provisions amended by the new Law still depend on regulation to be issued by CVM, the
material issues that might change the presentation of the financial statements are already being adopted or disclosed, and refer to the segregation of
the group Intangible assets in permanent assets, the disclosure of the statements of cash flows (as disclosed in note 28), and measurement at market
value of the financial instruments, disclosed comparatively to their carrying amount in note 18.  

26. SUMMARY OF DIFFERENCES BETWEEN BR CL AND US GAAP 

The  Company’s  primary financial  statements  have  been  prepared  in  accordance  with  BR  CL  which  differs  significantly from  US  GAAP  as
described below: 

(a) Inflation accounting methodology and indices 

In Brazil, because of highly inflationary conditions which prevailed in the past, a form of inflation accounting had been in use for many years to
minimize  the  impact  of  the  distortions  in  financial  statements  caused  by  inflation.  Two  methods  of  inflation  accounting  were  developed:  one
required under BR CL; and the other known as the Constant Currency Method. The primary difference between BR CL and the Constant Currency
Method relates to accounting for the effects of inflation. Under BR CL, inflation accounting was discontinued effective January 1, 1996. Prior to
that date, BR CL required inflationary indexation of property, plant and equipment, investments, deferred charges and shareholders' equity, the net
effect  of  which  was  reported  in  the  statement  of  operations  as  a  single  line  item.  The  Constant  Currency  Method  is  similar  to  U.S.  Accounting
Principles Board Statement No. 3 ("APS 3"), except that the former continues to apply inflationary accounting in periods of low inflation. Under
US GAAP, the Brazilian economy ceased to be highly inflationary effective July 1, 1997. The other significant difference between the two sets of
principles relates to the present-value discounting of fixed-rate receivables and payables, which is required by the Constant Currency Method and is
prohibited under BR CL. 

Financial statements prepared in accordance with BR CL have been, and continue to be, required of all Brazilian corporate entities and are used by
the Brazilian tax authorities in determining taxable income. Financial statements prepared in accordance with the constant currency method were
required  through  1995  for  those  entities  whose  securities  were  registered  with  the  CVM.  Since  1996,  presentation  of  supplemental  financial
statements under the Constant Currency Method has been optional. 

(i) Additional inflation restatement in 1996 and 1997 for US GAAP 

In the reconciliation from BR CL to US GAAP, consistent with the position paper prepared by the U.S. AICPA International Practice Task Force,
an adjustment for inflation accounting has been included for the period from January 1, 1996 to December 31, 1997. During this period, inflation
accounting was prohibited by BR CL but was required by APB statement 3 under US GAAP. Shareholders' equity under US GAAP was increased
by R$1,103,962 and R$ 1,171,576 at December 31, 2007 and 2006, respectively, due to the additional inflation restatement adjustments. 

(ii) Supplementary inflation restatement replaces revaluation of property, plant and equipment for US GAAP 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The price-level restatement methodology under BR CL relied on an official inflation index announced by the Brazilian Federal government which
was  also  used  for  purposes  of  determining  taxes  payable.  Shortly  after  the  launch  of  an  economic  stabilization  plan  in  1990,  the  government
announced an inflation rate for that year which was materially understated in relation to the general and consumer price indexes as measured by
independent economic institutes. In 1991, the government acknowledged this distortion and companies were required to re-present their statutory 
financial statements using a revised inflation index and the effects thereof were also used to determine income taxes, retroactively. The same law
(Law  No.  8,200/91)  also  granted  companies  the  option  (and  the  CVM  required  adoption  when  the  effects  were  significant)  to  reprocess  the 
accumulated inflation accounting effects since the date of acquisition of assets based on an independently sourced consumer or general price index.
This  supplemental  indexation  of  property,  plant  and  equipment,  investments  and  deferred  charges  was  to  be  recorded  in  the  statutory  BR  CL
accounting books but would have no effect for tax purposes. The Company anticipated the effects of this measure by contracting an independent
firm of experts to perform an appraisal to market value of its property, plant and equipment and recorded the revaluation increment in its statutory
BR  CL  accounting  records,  without  affecting  its  tax  position,  in  much  the  same  way  as  Law  No.  8,200/91  later  required.  As  the  revaluation
increment had eliminated the effects of the supplemental price-level restatements, no further action was taken and the Company did not apply the
incremental indexation. 

Under US GAAP, revaluations of assets to market value are not permitted and the effects of the revaluation have been reversed in the reconciliation
to US GAAP. However, in order to preserve the integrity of the historical cost of its assets based on the price-level restatement convention adopted 
by BR CL, the Company has recorded the supplemental price-level restatement adjustments, in accordance with Article 2 of Law No. 8,200/91, as
an adjusting item in the reconciliation to US GAAP. The Company has presented the balances of shareholders' equity and net income under BR
CL,  adjusted  for  the  effects  of  the  revaluation  and  the  replacement  of  the  reversal  by  the  supplemental  price-level  restatements,  and  related  tax 
effects, as a subtotal, prior to presenting the reconciling items to US GAAP. The subtotal also includes the effects of including an additional two
years' inflation accounting adjustments through to 1997 for purposes of US GAAP.  

Shareholders' equity under US GAAP was increased by R$ 2,705,277 and R$ 2,806,638 at December 31, 2007 and 2006, respectively, due to the
supplementary inflation restatement adjustments and reduced by R$ 2,339,829 and R$ 2,427,499 at December 31, 2007 and 2006, respectively, due
to the reversal of the revaluations, before tax effects. 

(iii) Inflation indexes 

The indexation of the financial statements through 1995, except for the year 1990, under BR CL was based on an official government index, the
Unidade Fiscal de Referência - UFIR and for the year ended December 31, 1990 on a consumer price index (Indice de Preços ao Consumidor, or
IPC).  For  purposes  of  US  GAAP,  a  general  price  index,  the  Indice  Geral  de  Preços  -  Mercado,  or  IGP-M,  was  used  to  record  the  additional 
inflation restatement in 1996 and 1997 and the supplementary inflation restatement through 1995. 

(b) Income taxes and social contribution 

Under BR CL, deferred tax assets are recognized at the estimated amounts that management considers are probable to be recovered. In addition,
deferred income taxes are shown gross rather than net. 

Under US GAAP, deferred taxes are recorded on all temporary tax differences. Valuation allowances are established when it is more likely than not
that deferred tax assets, including tax loss carryforwards, will not be recovered. Deferred tax assets and liabilities are classified as current or long-
term based on the classification of the asset or liability underlying the temporary difference, and are presented net. 

For purposes of deferred tax accounting, the US GAAP adjustments relating to inflation restatement of land and the push-down expenses from the 
Plan G0 pension fund (j)(ii) below and sabbatical paid leave benefits are treated as permanent tax differences, as such items are not deductible for
tax purposes by the Company.  

Taxes on  income  in  Brazil consist  of two types of  taxes: income  tax  and social  contribution. In  Brazil, the tax law  and tax rates are sometimes
significantly altered by provisional measures ("medidas provisórias") announced by Presidential decree. The provisional measures can affect tax
rates as well as other areas that could impact deferred taxes. Until September 2001, these measures remained in force for one month and expired
automatically  if  they  were  not  extended  for  an  additional  one-month  period.  In  September  2001  all  provisional  measures  were  automatically
enacted, and the Presidential decree powers restricted. Under BR CL, when calculating deferred income taxes, the provisional measures are usually
taken into account. 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Under  US  GAAP,  only  enacted  tax  rates  may  be  used  to  calculate  deferred  taxes.  Tax  rates  for  future  periods  which  have  been  established  by
provisional measures are not considered to have been enacted and are ignored. However, the provisional measure, to the extent it has not lapsed, is
used for determining the amount of current tax payable.  

Shareholders'  equity  under  US  GAAP  was  reduced  by  R$  1,281,468  and  R$  1,356,545  at  December  31,  2007  and  2006,  respectively,  due  to
deferred tax adjustments on US GAAP differences, excluding revaluations and permanent differences related to monetary readjustment on land of
approximately R$ 150 million. 

No valuation allowance adjustments were required to be included in the reconciliation between BR CL and US GAAP. 

(c) Financial instruments and concentration of credit risk 

Under BR CL, there are less detailed requirements regarding the disclosure of information on financial instruments not reflected on the balance
sheet or on concentration of financial instruments with credit risk. 

Under US GAAP, the applicable accounting practice for financial instruments depends on management's intention for their disposition and requires
adjustments to their market or fair values. Additional information on face or contract or notional principal amount; nature and terms including (i)
credit and market risk, (ii) cash requirements and (iii) accounting policy followed; amount of loss, if any party to the financial instrument fails to
perform;  and  policy  as  to  requiring  collateral  is  required.  Disclosure  as  to  concentration  of  credit  risk  arising  from  all  financial  instruments  is
required to include information about the activity, region or other characteristic that identifies the concentration; amount of loss if parties to the
concentrated risk fail to completely perform; and policy as to requiring collateral. 

Statement  of  Financial  Accounting  Standards  ("SFAS")  No.  133,  "Accounting  for  Derivative  Instruments  and  Hedging  Activities"  of  the  U.S.
Financial  Accounting  Standards  Board  (“FASB”)  establishes  accounting  and  reporting  standards  for  derivative  instruments  and  for  hedging
activities. It requires that an entity recognize all derivatives as either assets or liabilities and measure those instruments at fair value. This statement
was effective January 1, 2001 and did not have a significant impact on the Company’s financial statements. 

No adjustments have been included in the reconciliation from BR CL to US GAAP.  

(d) Cash and cash equivalents  

Under BR CL, cash equivalents are not defined. 

Under  US  GAAP,  SFAS  No.  95,  "Statement  of  Cash  Flows",  defines  cash  equivalents  as  short-term  highly  liquid  investments  that  are  both  (i) 
readily  convertible  to  known  amounts  of  cash  and  (ii)  so  near  their  maturity  that  they  present  insignificant  risk  of  changes  in  value  because  of
changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition 

The  Company  holds  certain  highly  liquid,  low  risk  financial  investments,  comprised  principally  of  high  quality  government  debt,  which  are
classified as cash equivalents under BR GAAP. Although the investments have high level of liquidity and present insignificant risks of changes in
value, under US GAAP, since these investments have original maturities of over 90 days, such investments do not qualify as cash equivalents. 

There are also, some securities with donor-imposed restrictions that are presented as “Cash and cash equivalents” under BR CL. These securities, 
under  US  GAAP,  must  be  classified  as  restricted  cash  and  the  classification  on  the  Cash  Flow  Statement  must  be  related  to  the  nature  of  the
restriction. 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The  effect  of  these  differences  in  classification  on  the  Company’s  balance  sheets  and  statements  of  cash  flows  for  the  periods  presented  are  as
follows:  

Cash and cash equivalents under Brazilian GAAP 
Difference in classification of restricted cash 
Cash and cash equivalents under US GAAP 

2007 

2006 

464,997  
(7,657) 

457,340

328,206 
-
328,206

Cash Flows 

2007 

2006 

2005 

Operating activities under Brazilian GAAP 
Cash flows relating to short-term investments under US GAAP 
Operating activities under US GAAP 

Financing activities under Brazilian GAAP 
Cash flows relating to restricted cash under US GAAP 
Financing activities under US GAAP 

Cash and cash equivalents at beginning of the year 
under Brazilian GAAP 
Difference in classification of temporary investments 
at beginning of the year 
Cash and cash equivalents at beginning of the year 
under US GAAP 

Increase in cash and cash equivalents under Brazilian 
GAAP 
Cash flows relating to short-term investments under US GAAP 
Cash flows relating to restricted cash under US GAAP 
Cash and cash equivalents at end of year under US 
GAAP 

(e) Investments in debt and equity securities 

2,215,600 
-
2,215,600 

(1,197,113)
(7,657)
(1,204,770)

2,020,824  
155,783  
2,176,607  

(1,122,755) 
-  
(1,122,755)

328,206 

280,173  

-

(155,783)

328,206 

124,390  

136,791 
-
(7,657)

457,340 

48,033  
155,783  
-  

328,206  

1,737,575 
(99,815)
1,637,760 

(919,733)
-
(919,733)

105,557 

(55,968)

49,589 

174,616 
(99,815)
-

124,390 

Under  BR  CL,  marketable  debt  and  equity  securities  are  generally  stated  at  the  lower  of  inflation-indexed  amortized  cost  or  market  value  less 
interest or dividends received. Gains and losses are reflected in earnings. 

Under  US  GAAP,  in  accordance  with  SFAS  No.  115,  "Accounting  for  Certain  Investments  in  Debt  and  Equity  Securities",  the  accounting  and
reporting for investments in equity securities that have readily determinable fair values and for all investments in debt securities is as follows: 

(i)  Debt  securities  that  the  enterprise  has  the  positive  intent  and  ability  to  hold  to  maturity  are  classified  as  held-to-maturity  securities  and  are 
reported at amortized cost.  
(ii) Debt and equity securities that are bought and held principally for the purpose of selling them in the near term are classified as trading securities
and reported at fair value, with unrealized gains and losses included in earnings;  
(iii) Debt and equity securities not classified as either held to maturity or trading securities are classified as available for sale securities and reported
at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity.. For purposes
of US GAAP, certain unrealized gains and losses from the Company’s available-for-sale securities are recorded directly in shareholders' equity, net 
of tax effects, until realized. Shareholders' equity under US GAAP was increased by R$ 88 and reduced by R$ 93 on December 31, 2007 and 2006,
respectively, for unrealized gain/losses from available-for-sale securities. 

(f) Property, plant and equipment 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(i) Revaluations of property, plant and equipment.  

BR CL permits appraisal write-ups, provided that certain formalities are complied with. The revaluation increment is credited to a reserve account
in  shareholders'  equity.  Depreciation  of  the  asset  revaluation  increments  is  charged  to  income  and  an  offsetting  portion  is  relieved  from  the
revaluation reserve in shareholders' equity and transferred to retained earnings as the related assets are depreciated or are disposed 

For  US  GAAP  reconciliation  purposes,  net  revaluation  of  property,  plant  and  equipment  in  the  amounts  of  R$  2,339,829  and  R$  2,427,499  at
December 31, 2007 and 2006, respectively, have been eliminated in order to present property, plant and equipment at historical cost, indexed for
inflation  through  1997  based  on  a  general  price  index,  less  accumulated  depreciation.  The  depreciation  on  such  revaluation  charged  to  income,
totaling R$87,670, R$102,272 and R$ 89,449 for the years ended December 31, 2007, 2006 and 2005, respectively, has also been eliminated for
US GAAP purposes in the reconciliation of net income. 

Under BR CL, no deferred tax liability was recorded on the revaluation increment. Under US GAAP, although the depreciation from the additional
inflation  restatement  ((a)(i)  above)  and  the  supplementary  inflation  restatement  ((a)(ii)  above)  will  not  be  deductible  for  tax  purposes,  these
depreciation  charges  are  considered  to  be  temporary  tax  differences  as  the  expense  will  reverse  through  income  in  the  future,  and,  as  such,  are
recorded for purposes of determining deferred tax liabilities. 

(ii) Different criteria for capitalizing and depreciating capitalized interest 

Under  BR  CL,  until  December  31,  1995,  capitalization  of  interest  cost  incurred  during  the  construction  period  as  part  of  the  cost  of  the  related
property, plant and equipment was not required. However, as permitted by the Brazilian Water and Sewage Plan (Plano Nacional de Saneamento 
Básico - PLANASA), SABESP capitalized interest on construction-in-progress through 1989. Also, under BR CL as applied to companies in the
utilities industry, during the period from 1979 to 1985, a notional interest rate was applied to construction-in-progress computed at the rate of 12% 
per annum of the balance of construction-in-progress; that part which related to interest on third-party loans was credited to interest expense based
on actual interest costs with the balance relating to the self-financing portion being credited to capital reserves. Beginning in 1999, SABESP has
capitalized  indexation  charges  on  the  real  -  denominated  loans  and  financing  and  the  foreign  exchange  effects  on  foreign  currency  loans  and
financing. 

Under US GAAP, in accordance with SFAS No. 34, "Capitalization of Interest Cost", interest incurred on borrowings is capitalized to the extent
that borrowings do not exceed construction-in-progress. Such interest is capitalized as part of the cost of the related assets with a corresponding
credit to financial expenses. Under US GAAP, the amount of interest capitalized excludes the indexation charges associated with the borrowings
and the foreign exchange gains and losses on foreign currency borrowings.  

The effects of these different criteria for capitalizing and amortizing interest are presented below: 

Interest capitalized under US GAAP in the period from 1989 to 1995 
Amortization thereof 
Capitalized interest credited to income under BR CL (12% per annum, 
applied monthly to the balance of construction-in progress) in excess of 
actual interest 
Amortization thereof 
Indexation charges and foreign exchange losses capitalized since 1999 
under BR CL, net 

US GAAP difference in shareholders' equity at December 31 

US GAAP difference on pre-tax income for the year ended December 31 

(iii) Valuation of long-lived assets 

F-60 

2007 

 2006 

2005 

205,459 
(112,683)

206,227  
(105,964)

208,826 
(100,222)

(32,448)
30,245 

93,165 

183,738 

36,280 

(32,569)
29,188 

50,576 

147,458 

16,024 

(32,983)
28,285 

27,528 

131,434 

25,929 

 
 
 
 
 
 
 
 
 
 
 
 
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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Under BR CL, companies are required to determine if operating income is sufficient to absorb the depreciation or amortization of long-lived assets, 
within the context of the balance sheet as a whole, in order to assess potential asset impairment. As it pertains to property, plant and equipment, in
the event that such operating income is insufficient to recover the depreciation due to their permanent impairment, the assets, or groups of assets,
are written-down to recoverable values, preferably, based on the projected discounted cash flows of future operations. 

Under US GAAP, SFAS No. 144, "Accounting for the Impairment or Disposal of Long-lived Assets", requires companies to periodically evaluate 
the carrying value of long-lived assets to be held and used, and for long lived assets to be disposed of, when events and circumstances require such 
a  review.  The  carrying  value  of  long-lived  assets  is  considered  impaired  when  the  anticipated  undiscounted  cash  flows  from  identified  assets,
representing the lowest level for which identifiable cash flows largely independent of the cash flows of other groups of assets and liabilities, is less
than their carrying value. In that event, a loss is recognized to the extent that the carrying value exceeds the fair market value of the assets. 

No adjustment has been included in the reconciliation from BR CL to US GAAP to take account of differences between the measurement criteria,
as based on analysis of cash flows measured at the smallest unit of assets groups for which cash flow data is captured no impairment provisions
were required. Losses recognized on the write-off of property, plant and equipment arose primarily from adjustments related to the withdrawal of
concession assets, construction-in-progress projects which were deemed to be no longer economically feasible and obsolescence write offs. 

(g) Deferred charges 

Under BR CL deferral of feasibility study costs and pre-operating expenses incurred in the construction or expansion of a new facility is permitted
until such time as the facility begins commercial operations. Deferred charges are amortized over a period of five to ten years.

Under US GAAP, such amounts do not meet the conditions established for deferral and accordingly are charged to income as incurred.

The balance of feasibility study costs outstanding, amounted to R$ 3,474 and R$ 10,035 at December 31, 2007 and 2006, respectively, has been
written-off for US GAAP purposes. The net effects from amortization and deferrals in the statement of operations at December 31, 2007, 2006 and
2005 were an increase of R$ 6,561, R$ 10,496 and R$ 18,566 respectively.  

(h) Pension benefits 

Under BR CL, prior to 2002, amounts related to the pension plan were recorded on an accrual basis as the obligations for contributions fell due. In
accordance with a new accounting standard issued by IBRACON and approved by the CVM, effective January 1, 2002, Brazilian public companies
must account for pension obligations based on actuarial calculations and provide certain disclosures related to their pension plans. Under the new
standard,  the  actuarial  pension  obligation  determined  at  the  date  of  adoption  could  be  either  recorded  directly  in  shareholders’  equity,  or
prospectively, during the five-year period ending December 31, 2006 in results of operations. As permitted, the Company has elected to recognize
this  transition  obligation  on  a  straight-line  basis  through  income  over  five  years  beginning  in  2002.  The  amortization  of  the  liability  is  being
presented as an “Extraordinary item” in the statements of operations, net of applicable tax effects.  

Under  US  GAAP,  the  Company  accounts  for  its  pension  plans  in  accordance  with  the  provisions  of  SFAS  No.  87,  "Employers'  Accounting  for
Pensions,"  which  among  other  requirements,  requires  that  the  Company  recognize  the  actuarially-determined  liability  of  its  pension  plan 
obligations. SFAS No. 87 also requires that an additional liability (minimum pension liability) is required to be recorded when the accumulated
benefit obligation exceeds the fair value of the plan assets, less accrued pension amounts. This additional minimum liability is recorded as a charge
to accumulated other comprehensive income in equity.  

SFAS  No.  132  (revised  2003),  “Employers'  Disclosures  about  Pensions  and  Other  Postretirement  Benefits”  sets  forth  the  requirements  for
information that must be disclosed with respect to the Company’s pension plans. 

F-61 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

After  the  issuance  of  SFAS  158  “Employers’  Accounting  for  Defined  Benefit  Pension  and  Other  Postretirement  Plans  an  amendment  of  FASB
Statements  No.  87,  88,  106,  and  132(R)”,  in  September  2006,  an  employer  is  required  to  recognize  the  overfunded  or  underfunded  status  of  a
defined benefit postretirement plan (other than a multi-employer plan) as an asset or liability in its statement of financial position and to recognize
changes in that funded status in the year in which the changes occur through comprehensive income of a business entity or changes in unrestricted
net assets of a not-for-profit organization. This Statement also requires an employer to measure the funded status of a plan as of the date of its year-
end statement of financial position, with limited exceptions.  

Another requirement of the statement is that the employer must disclose in the notes to financial statements additional information about certain
effects on net periodic benefit cost for the next fiscal year that arise from delayed recognition of the gains or losses, prior service costs or credits,
and transition asset or obligation. An employer with publicly traded equity securities is required to initially recognize the funded status of a defined
benefit postretirement plan and to provide the required disclosures as of the end of the fiscal year ending after December 15, 2006.  

The additional adjustments required by SFAS 158 has been made after the accounting according to the SFAS 87 and SFAS 132. 

Although  the  adopted  accounting  standard  under  BR  CL  requires  the  Company  to  recognize  pension  obligation  based  on  actuarial  methods
effective January 1, 2002, differences under BR CL related to the prescribed actuarial methods, date of first adoption and amortization of transition
obligations, among others, as compared with those under US GAAP, generate reconciling adjustments for US GAAP purposes.  

(i) Pension plan (Plan G1) 

The  Company  sponsors  a  defined-benefit  plan  for  its  employees  (Plan  G1).  For  the  purposes  of  calculating  the  funded  status  of  Plan  G1,  the
provisions  of  SFAS  No.  87,  were  applied  with  effect  from  January  1,  1992,  because  it  was  not  feasible  to  apply  them  from  the  effective  date
specified in the standard.  

(ii) Supplementary pension plan (Plan G0) 

Pursuant to a law enacted by the State Government, certain employees who provided service to the Company prior to May 1974 and retired as an
employee  of  the  Company  acquired  a  legal  right  to  receive  supplemental  pension  payments  (which  rights  are  referred  to  as  “Plan  G0”).  The 
Company pays these supplemental benefits on behalf of the State Government and makes claims for reimbursement from the State Government,
which are recorded as accounts receivable, shareholder under BR CL. No expense is recognized for these benefits under BR CL. 

Consistent with the guidance in SEC Staff Accounting Bulletin Topic 5-T ("SAB No. 5-T"), under US GAAP, the Company recognizes the costs 
and obligations associated with Plan G0 supplemental pension benefits incurred by the State Government on behalf of the Company with respect to
its employees on a “push-down basis,” as the Company is the recipient of the benefits of the employee service for which the supplemental pension
benefits are made. These benefits are accounted for in accordance with SFAS No. 87. Eventual amounts received as reimbursement from the State
Government, if any, are treated as additional paid-in-capital. 

Retained earnings was reduced in the first year of presentation (1998) for the actuarial liability computed under SFAS No. 87. and the balance of
amounts due from the State Government for pensions paid was charged to income, as this amount relates to a charge for past services rendered by
the Company’s former employees. Amounts reimbursed to the Company by the State Government were accounted for as additional paid-in capital 
and a reduction of the actuarial liability to reflect gross benefits paid. The remaining unpaid reimbursable balance due from the State Government
(effectively a subscription receivable) was charged off as a deduction to shareholders' equity. 

(iii) Sabbatical paid leave 

The Company also pays amounts equivalent to three months of vacation for each five years' of service as a form of sabbatical paid leave to certain
of the Company’s employees for which it also claims reimbursement from the State Government. Consistent with the guidance in SAB Topic 5-T, 
under  US  GAAP  the  Company  recognizes  the  costs  and  obligations  associated  with  these  sabbatical  leave  benefits  incurred  by  the  State
Government on behalf of the Company with respect to its employees on a “push-down basis,” as the Company is the recipient of the benefits of the 
employee  service  for  which  the  supplemental  pension  benefits  are  made.  The  Company  has  accounted  for  this  sabbatical  expense  by  relieving
directly against retained earnings for the first year presented and subsequently the Company recognized as a charge to income the receivable due
from the State Government, for sabbatical leave paid, as this amount relates to a charge for past services rendered by the Company’s former/current 
employees. Amounts reimbursed by the State Government, if any, are accounted for as additional paid-in capital. 

F-62 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

During the year ended December 31, 2000, in the financial statements prepared in accordance with BR CL, sabbatical leave accruals totaling R$
23,747, which had in prior years been charged to income, and were accounted for as a receivable (reimbursement) due from the State Government,
were reversed, as the Company does not consider this to be an expense under BR CL. Similarly, during December 31, 2007, 2006 and 2005, total
amounts not accrued were R$1,319, R$ 1,991 and R$ 968, respectively. Such amounts, consistent with the US GAAP difference mentioned above,
were ‘pushed down’ as expenses in the reconciliation to US GAAP.  

(iv) Summary of pension benefits adjustments 

The effects included in the shareholders' equity reconciliation arising from these different criteria for pension and benefit accounting are presented
below: 

Plan G1 
Accrued pension liability under US GAAP (SFAS 87)
Accrued pension liability under BR CL 
Difference Plan G1 (SFAS 87)

Incremental Effect of Applying SFAS N° 158 
Difference Plan G1 

Plan G0 
Accrued pension cost under US GAAP (SFAS 87)

Incremental Effect of Applying SFAS N° 158 
Difference Plan G0 

Sabbatical paid leave 
Recognition of reversed expense (i) (iii)

Push-down accounting of Plan G0 and sabbatical 
Paid leave 
Gross amount paid for Plan G0 and sabbatical paid leave 
recorded as receivables from the State 
Government (i)

Additional paid-in capital - Plan G0 and sabbatical 
paid leave reimbursed by the State Government (i)

F-63 

2007 

2006 

(666,095) 
365,234  
(300,861)

248,972  
(51,889) 

(644,760)
321,212 
(323,548)

361,450 
37,902 

(1,192,624) 

(1,156,492)

(45,043) 
(1,237,667)

(87,575)
(1,244,067)

(7,246) 

(8,565)

(994,047)

(889,425)

114,970  

114,970 

 
 
 
 
 
 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The effects included in the reconciliation of net income (los) arising from these different criteria for pension and benefit accounting are presented
bellow:  

Table of Contents

Plan G1 
Accrued pension obligation Plan G1 
Plan G0 
Accrued pension obligation Plan G0 
Sabbatical paid leave 
Recognition of reversed expense 
Gross amount paid for Plan G0 and sabbatical 
Paid leave recorded as receivables from the 
State Government 

(i) Capitalization of debt issuance costs 

2007 

2006 

2005 

22,687 

(36,132)

1,319 

(14,469)

(25,981)

1,991 

45,163 

(27,258)

968 

(104,622)

(101,741)

(96,388)

Under  BR  CL  the  costs  associated  with  issuance  of  debts  are  recognized  as  a  operational  expenses.  Under  US  GAAP,  APB  21  –  “Interest  on 
Receivables and Payables” debt issue costs are deferred and amortized using the effective interest method over the remaining term of the applicable
debt obligations. At December 31, 2007, the balance of deferred debt issue costs included as an adjustment to shareholders’ equity, related to debt 
issue costs was R$ 7,481 (in 2006 was R$ 11,331), net of accumulated amortization. 

(j) Donations  

Under BR CL these amounts, which comprise principally contributions of property, plant and equipment that we receive from third parties, were
recorded  at  fair  value,  generally  determined  based  on  estimates  of  the  current  replacement  cost  of  the  assets  contributed,  as  other  income  until
December 31, 2003 an as a credit to other capital reserves after this date.  

For  U.S.  GAAP  purposes,  the  amounts  recorded  as  revenues  and  capital  reserves  related  to  donations  received  from  third  parties  would  be
classified as a deferred credit, recorded as a reduction of the related amount of property, plant and equipment in the balance sheet, and amortized to
reduce  depreciation  expense  over  the  related  estimated  useful  life  of  the  donated  assets.  Prior  to  2006,  we  did  not  account  for  any  differences
between BR CL and US GAAP, as the amounts of such donations have not historically been, and were not expected to be material. However, in
light of the cumulative nature of such donations, beginning January 1, 2006, we began accounting for such differences.  

As a result, shareholders equity under U.S. GAAP was lower by R$ 83,316, net of tax effects, as compared to BR CL at December 31, 2007 (in
December 31, 2006 was R$ 69,535) . Net income in 2007 was also lower by R$ 3,487 (2006 was R$ 15,871), net of tax effects, as compared to BR
CL, as a result of the cumulative differences in the accounting for donations under BR CL. The related impacts on prior year results of operations
were not considered material. 

(k) Segment reporting 

Under BR CL, no separate segment reporting is required. 

Under US GAAP, SFAS No. 131, "Disclosures about Segments of an Enterprise and Related Information" establishes the standards for the manner
in  which  public  enterprises  are  required  to  report  financial  and  descriptive  information  about  their  operating  segments.  SFAS  No.  131  defines
operating  segments  as  components  of  an  enterprise  for  which  separate  financial  information  is available  and  evaluated  regularly  as  a  means  for
assessing  segment  performance  and  allocating  resources  to  segments.  A  measure  of  profit  or  loss,  total  assets  and  other  related  information  are
required to be disclosed for each operating segment. 

The Company operates in two segments: water services and sewage services.  

F-64 

 
 
 
 
 
 
 
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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(l) Comprehensive income  

BR CL does not embody the concept of comprehensive income. 

Under  US  GAAP,  the  Company  has  adopted  the  provisions  of  SFAS  No.  130,  "Reporting  Comprehensive  Income."  A  foreign  (i.e.,  non-U.S.) 
registrant may present the statement of comprehensive income in any format permitted by SFAS No. 130. The information required by SFAS No.
130, has been included in the condensed financial statement information as prepared in accordance with US GAAP below. 

(m) Provision for dividends and interest on shareholders' equity 

Under BR CL, at each annual balance sheet date management is required to propose a dividend distribution from earnings and accrue for this in the
financial statements. Under BR CL, companies are permitted to distribute a notional amount of interest, subject to certain limitations, calculated
based on the government TJLP interest rate, on shareholders' equity. Such amounts are deductible for tax purposes and are presented as a deduction
from shareholders' equity. Although not affecting net income except for the tax benefit, in certain cases companies include this notional charge in
interest expense and reverse the same amount before totaling net income. The Company presents the financial expense net of the reversal in  its
financial statements. 

Under US GAAP,  since  proposed  dividends must be ratified or modified at  the  annual  shareholders' meeting, dividends  would  generally  not  be
considered as declared at the balance sheet date and, as such, would not be accrued. However, because the State Government is the Company’s 
controlling shareholder, the minimum dividend proposal when made by management at year end is maintained as a provision, and therefore, no
adjustments has been included in the reconciliation from BR CL to US GAAP. Interim dividends paid or interest credited to shareholders as interest
on shareholders' equity under BR CL is considered as declared for US GAAP purposes. Under US GAAP, no similar interest distribution concept
exists. 

Distributions per share data (in the form of dividends or interest on shareholders’equity) is not required to be disclosed under BR CL. 

Interest on shareholders' equity per common shares(*) for the years ended December 31, 2007, 2006 and 2005 were as follows: 

Interest on shareholders' 
equity per shares 

December 31, 

2006 

1.19 

2005 

1.53 

2007 

1.32 

(*)  The  weighted-average  number  of  shares  used  in  Interest  on  shareholders'  equity  per  share  for  December  31,  2007,  2006  and  2005  was
227,836,623, reflecting the effects of the reverse stock split as discussed in note 26 (r).  

(n) Related parties 

Under BR  CL,  related  parties  are generally  defined  in a  more  limited manner and  require fewer disclosures  than US  GAAP.  The Company has
expanded its disclosure for purposes of BR CL. 

No adjustments have been included in the reconciliation from BR CL to US GAAP. 

(o) Items posted directly to shareholders' equity accounts 

Under  BR  CL,  various  items  are  posted  directly  to  shareholders'  equity  accounts.  Examples  include  certain  capitalized  interest,  the  effects  of
adjustments to tax rates and tax incentive investment credits received. As noted in (a) above, Brazilian utility companies used to capitalize interest
attributable  to  construction-in-progress  at  the  rate  of  12%  per  annum  of  the  balance  of  construction-in-progress  and  that  part  which  relates  to 
interest on third-party loans is credited to interest expense based on actual interest costs with the balance relating to the self-financed portion being 
credited to capital reserves. 

F-65 

 
 
 
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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Under  US  GAAP,  such  items  relating  to  third-party  debt  would  be  posted  to  the  statement  of  operations.  Since  the  original  posting  to  equity
accounts  would,  under  US  GAAP,  be  made  directly  to  the  statement  of  operations,  these  adjustments  are  included  in  the  reconciliation  of
shareholders' equity and net income determined in accordance with US GAAP. 

(p) Discounting 

Under  BR  CL,  discounting  of  trade  receivables  and  payables  to  present  value  is  not  permitted.  Under  US  GAAP,  APB  No.  21  "Interest  on
Receivables and Payables", such discounting, in certain cases, is required to record the effects of implicit interest income or expense or which are
different from market rates on long-term assets and liabilities, except for transactions in which interest rates are affected by the tax attributes or
legal restrictions prescribed by a government agency. The company does not have original long term agreements. 

No adjustments have been included in the reconciliation from BR CL to US GAAP as the Company had no long-term trade accounts payables or
receivables potentially subject to discounting at December 31, 2007, 2006 and 2005. 

(q) Classification of statement of operations line items  

Under BR CL, as noted above, the classification of certain income and expense items is presented differently from US GAAP. The Company has
recast  its  statement  of  operations  under  BR  CL  to  present  a  condensed  statement  of  operations  prepared  in  accordance  with  US  GAAP.  The
reclassifications are summarized as follows:  

(i) Interest income and interest expense, together with other financial charges, are displayed within operating income in the statement of operations
presented in accordance with BR CL. Such amounts have been reclassified to non-operating income and expenses in the condensed statement of
operations prepared in accordance with US GAAP;  

(ii) Under BR CL, gains and losses on the disposal or impairment of permanent assets are classified as non-operating income (expense). Under US 
GAAP, gains and losses on the disposal or impairment of property, plant and equipment are classified as an adjustment to operating income;  

(iii)  Following  the  issue  of  an  accounting  standard  under  BR  CL,  effective  January  1,  2002,  the  Company  is  amortizing  the  related  transition
obligation related to Plan G1 over five years. The related amortization, as permitted, is being presented as an “Extraordinary item” net of taxes, in 
the statement of operations. Under US GAAP, this amortization expense would be included as part of operating income.  

(r) Earnings per share 

Under BR CL, net income per share is calculated on the number of shares outstanding at the balance sheet date. Information is disclosed per lot of
one thousand shares, because this is the minimum number of shares of the Company that can be traded on the stock exchanges.  

Under US GAAP, in accordance with SFAS No.128, "Earnings per Share", the presentation of earnings per share is required for public companies,
including  earnings  per  share  from  continuing  operations  and  net  income  per  share on  the  face  of  the  statement  of  operations,  and  the  per  share
effect of changes in accounting principles, discontinued operations and extraordinary items either on the face of the statement of operations or in a
note.  A  dual  presentation  is  required:  basic  and  diluted.  Computations  of  basic  and  diluted  earnings  per  share  data  are  based  on  the  weighted
average number of shares outstanding during the period and all potentially dilutive shares outstanding during each period presented, respectively. 

Statement 128 requires the retroactive restatement of earnings-per-share computations for stock dividends, stock splits, and reverse splits. If a stock
dividend  or  split  is  consummated  after  the  close  of  the  period  but  prior  to  the  issuance  of  the  financial  statements,  the  earnings-per-share 
computation should be based on the new number of shares. 

F-66 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The Board of Directors, in its meeting on March 30, 2007, approved the proposal for submission to the Annual Shareholders’ Meeting, which took 
place on April 30, 2007, of the Grouping of Shares. On June 4, 2007, the shares were grouped in the proportion of 125 (one hundred twenty five)
shares to 1 (one) share. The capital stock is represented by 227,836,623 common nominative and scriptural shares, without par value, remaining
unchanged Sabesp’s capital stock. 

Simultaneously to the grouping operation, the American Depositary Receits (ADR’s) started to be traded in the proportion of 2 (two) shares to each 
ADR. 

Considering  the  grouping  of  shares  mentioned  above  the  weighted-average  number  of  shares  used  in  computing  basic  earnings  per  share  for
December 31, 2007, 2006 and 2005 was 227,836,623. The Company had no potentially dilutive shares outstanding during 2007, 2006 or 2005. 

(s) Leasing Transactions 

Under Brazilian GAAP, generally, lessees account for long-term leases as operating leases, whereas in accordance with U.S. GAAP such leases
could  be  accounted  for  as  operating  or  capital  leases.  As  a  result,  under  Brazilian  GAAP,  lease  payments  by  lessees  with  respect  to  leases  are
charged  as  an  expense  as  incurred.  Under  U.S.  GAAP,  the  lease  payments  may  be  charged  as  an  expense  as  incurred  (operating  leases)  or  the
leased asset and the corresponding lease liability may be recognized in the balance sheet and the effect of depreciation and interest expense in the
results of operations (capital leases). 

F-67 

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Net income (loss) reconciliation of the differences between BR CL and US GAAP 

The following is a reconciliation of the differences in net income (loss) between BR CL and US GAAP: 

Table of Contents

Net income as reported under the BR CL 
Depreciation of additional inflation restatement 
in 1996 and 1997 
Reversal of depreciation of revaluation increments 
Depreciation of supplementary restatement prior 
to 1991 
Deferred tax effects on above (excluding 
revaluation)

Net income as reported under the BR CL, 
adjusted for inflation restatements and 
revaluations 
Accrued pension cost - Plan G1 
Accrued supplementary pension cost - Plan G0 
Sabbatical leave benefits 
Actuarial liability (Plan G0) and sabbatical leave 
benefits push-down recognition 
Capitalized interest 
Interests on Capital Leasing 
Deferred charges, net of effects of accumulated 
amortization 
Capitalization of debt issuance costs 
Deferred Credits - Donations 

Deferred income taxes effects: 
Other GAAP differences above, excluding 
reversal of revaluation increments 

Net income under US GAAP 

Net income per thousand common shares 
Basic and diluted (in reais)
Weighted average number of common shares 
outstanding on December 31, 
2007 

2007 

2006 

2005 

1,048,703 

778,905  

865,647 

(67,614)
87,670 

(75,541) 
102,272  

(61,955)
89,449 

(101,361)

(118,243) 

(103,420)

57,452 

65,887  

56,228 

1,024,850 
22,687 
(36,132)
1,319 

(104,622)
36,280 
(6,322)

6,561 
(3,850)
5,283 
946,054 

(20,618)

925,436 

753,280  
(14,469) 
(25,981)
1,991  

(101,741)
16,024  
6,967  

10,496  
(2,645) 
(26,622)
617,300  

5,184  

622,484  

845,949 
45,163 
(27,258)
968 

(96,388)
25,929 
(645)

18,566 
13,976 

826,260 

(35,016)

791,244 

4.06 

2.73  

3.47 

227,836,623 

227,836,623  

227,836,623 

(a)(i)
(f)(i)

(a)(ii)

(b)

(h)(iv)
(h)(iv)
(h)(iv)

(h)(iv)
(f)(ii)
(s)

(g)
(i)
(j)

(b)

(r)

(r)

F-68 

 
 
 
 
 
 
 
 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Shareholders' equity reconciliation of the differences between BR CL and US GAAP 

The following is a reconciliation of the differences in shareholders’ equity between BR CL and US GAAP: 

Shareholders' equity, as reported under BR CL 
Add (deduct):
Additional inflation restatement in 1996 and 1997, net 

Reversal of revaluation increments, net 
Supplementary restatement prior to 1991, net 
Deferred tax effects on above (excluding revaluation)

Shareholders' equity, as reported under BR CL, adjusted for 
inflation restatements and revaluations 
Accrued pension cost - Plan G1 
Accrued supplementary pension cost -Plan G0 
Actuarial liability (Plan G0) and sabbatical leave expense 

push-down recognition 

Additional paid-in capital - Plan G0 and sabbatical expense 
     reimbursed by the State Government 
Sabbatical paid leave of absence benefits 
Capitalized interest 
Interests on Capital Leasing 
Deferred charges expensed, net 
Capitalization of debt issuance costs 
Deferred Credits - Donations 
Other GAAP differences 
Deferred income taxes effects: 
Other deferred tax effects on US GAAP differences above, 
     excluding adjustments for available-for-sale securities, 
     inflation restatements and revaluation increments 

Shareholders' equity under US GAAP 

(a) (i)
(a) (ii)/ 
(f) (i)
(a) (ii)
(b)

(h) (iv)
(h) (iv)

(h) (iv)

(h) (iv)
(h) (iv)
(f) (ii)
(s)
(g)
(i)
(j)
(e)
(b)

F-69 

Table of Contents

2007 

2006 

9,784,006  

9,018,482 

1,103,962  

1,171,576 

(2,339,829)
2,705,277  
(1,244,233) 

10,009,183  
(51,889) 
(1,237,667) 

(2,427,499)
2,806,638 
(1,301,684)

9,267,513 
37,902 
(1,244,067)

(994,047)

(889,425)

114,970  
(7,246)
183,738  
-  
(3,474)
7,481  
(92,271) 
88  

114,970 
(8,565)
147,458 
6,322 
(10,035)
11,331 
(80,286)
(93)

(37,235)

(54,861)

7,891,631  

7,298,164 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Supplemental Condensed Financial Statement Information in Accordance with US GAAP. 

The following presents condensed financial statement information in accordance with US GAAP. 

Assets

Current assets 
Cash and cash equivalents 
Restricted cash (PMSP)
Customer accounts receivable, net 
Receivables from shareholder, net 
Inventories 
Taxes recoverable 
Other current assets 
Total current assets 

Investments 
Intangible assets – concession rights, net 
Property, plant and equipment, net 

Other long-term assets 
Customer accounts receivable, net 
Receivables from shareholder, net 
Escrow deposits 
Indemnities receivable 
National water agency program(Agência Nacional de Águas)
Other assets 

Table of Contents

2007 

  2006 

457,340  
7,657  
1,207,885  
338,506  
53,141  
33,543  
55,190  
2,153,262  

808  
507,789  
15,620,950  

278,787  
107,911  
49,611  
148,794  
57,332  
3,675  

646,110  

328,206 
-
1,111,289 
367,864 
48,889 
31,582 
28,852 
1,916,682 

627 
495,118 
15,473,542 

296,562 
89,012 
33,835 
148,794 
36,989 
7,536 

612,728 

Total assets 

18,928,919  

18,498,697 

F-70 

 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Liabilities and shareholders’ equity

Current liabilities 
Accounts payable to suppliers and contractors 
Loans and financing 
Accrued payroll and related charges 
Deferred income taxes 
Taxes payable 
Accrued pension obligation 
   Plan G0 
Provisions for contingencies 
Interest on shareholders’ equity 
Services Received 
Other current liabilities 
Total current liabilities 

Long-term liabilities 
Loans and financing 
Taxes payable 
Accrued pension obligation 
   Plan G0 
   Plan G1 
Provisions for contingencies 
Deferred income taxes 
Other liabilities 
Total long-term liabilities 

Commitments and contingencies 

Shareholders’ equity
Paid-in capital 
Capital reserves 
Supplementary and additional inflation restatement reserves 
Accumulated other comprehensive income net of taxes 
Appropriated earnings 
Accumulated profits / (deficits)
Total shareholders’ equity 
Total liabilities and shareholders’ equity 

F-71 

Table of Contents

2007 

2006 

165,267  
742,114  
166,797  
-  
127,735  

109,920  
319,977  
680,339  
156,987  
57,323  
2,526,459  

4,925,439  
197,635  

1,127,747  
417,123  
655,084  
1,084,107  
103,694  
8,510,829  

144,167 
852,475 
177,705 
69,281 
105,552 

110,059 
2,294 
511,519 
152,953 
99,312 
2,225,317 

5,459,938 
230,440 

1,134,008 
283,310 
655,258 
1,160,792 
51,470 
8,975,216 

3,518,658  
53,323  
3,809,239  
119,279  
306,654  
84,478  
7,891,631  
18,928,919  

3,518,658 
53,026 
3,978,214 
150,982 
254,219 
(656,935)
7,298,164 
18,498,697 

 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Condensed Statements of Operations in accordance with US GAAP

Table of Contents

Gross revenue from sales and services 
Taxes on sales and services 
Net revenue from sales and services 
Cost of sales and services 
Gross profit 
Operating expenses 
Selling
Administrative 
Other operating expenses, net 
Income from operations 
Financial expenses, net 
Income before taxes on income 
Income and social contribution taxes 
Net income for the year 

Net income per thousand shares Basic and 
diluted (in reais)
Weighted average number of common shares 
outstanding 

2007 

     2006 

    2005 

6,448,211 
(477,369)
5,970,842 
(2,848,560)
3,122,282 

(648,134)
(609,909)
(23,292)
1,840,947 
(520,777)
1,320,170 
(394,734)
925,436 

5,984,012  
(456,679) 
5,527,333  
(2,822,616) 
2,704,717  

(737,303)
(428,670) 
(87,380) 
1,451,364  
(542,266)
909,098  
(286,614) 
622,484  

5,356,326 
(402,963)
4,953,363 
(2,570,180)
2,383,183 

(555,435)
(350,180)
(7,356)
1,470,212 
(401,894)
1,068,318 
(277,074)
791,244 

4.06 

2.73  

3.47 

227,836,623 

227,836,623  

227,836,623 

Condensed Statement of Comprehensive Income (Loss) in accordance with US GAAP (under SFAS No. 130) 

Net income for the year 
Unrealized gains (losses) on available-for-sale securities 
Effects of Applying SFAS N° 158: 
   Pension Plan - Plan G1 
   Pension Plan - Plan G0 
Comprehensive income 

F-72 

2007 

2006 

2005 

925,436 
181 

(74,235)
42,532 
893,914 

622,484  
(63) 

-  
-  
622,421  

791,244 
62 

-
-
791,306 

 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Condensed Statement of Changes in Shareholders' Equity in accordance with US GAAP. 

2007 

2006 

2005 

Balance at beginning of the year 

7,298,164 

6,821,396  

6,364,777 

Donations 
Unrealized gains (losses) on available-for-sale 
securities 
Effects of Applying SFAS N° 158: 
   Pension Plan - Plan G1 
   Pension Plan - Plan G0 
Net income for the year 
Interest on shareholders' equity
Balance at end of the year 

297 

181 

(74,235)
42,532 
925,436 
(300,744)
7,891,631 

(25,794) 

(63) 

238,557  
(87,575) 
622,484  
(270,841)
7,298,164  

13,529 

62 

-
-
791,244 
(348,216)
6,821,396 

F-73 

 
 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Recently Issued Accounting Pronouncements 

In June 2006, the FASB issued Interpretation No. 48, “Accounting for Uncertainty in Income Taxes,” An Interpretation of SFAS No. 109,” (“FIN 
48”). FIN 48 clarifies the accounting for uncertainty in income taxes recognized in an enterprise's financial statements in accordance with SFAS
No. 109, “Accounting for Income Taxes.” FIN 48 requires that realization of an uncertain income tax position must be “more likely than not” (i.e., 
greater than 50% likelihood of receiving a benefit) before it can be recognized in the financial statements. 

Further,  this  interpretation  prescribes  the  benefit  to  be  recorded  in  the  financial  statements  as  the  amount  most  likely  to  be  realized  assuming  a
review  by  tax  authorities  having  all  relevant  information  and  applying  current  conventions.  Additionally,  FIN  48  provides  guidance  on
derecognition, income statement classification of interest and penalties, accounting in interim periods, disclosure, and transition. This interpretation
is effective for fiscal years beginning after December 15, 2006. The adoption of FIN 48 has not impacted SABESP’s financial statements of 2007, 
see note 27 (b).  

In September 2006, the FASB issued Statement No. 157, “Fair Value Measurements” (“SFAS 157”). SFAS No.157 defines fair value, establishes a 
framework for measuring fair value in generally accepted accounting principles, and expands disclosures about fair value measurements. SFAS No.
157 is effective for financial statements issued for fiscal years beginning after November 15, 2007, and interim periods within those fiscal years.
The transition adjustment, which is measured as the difference between the carrying amount and the fair value of those financial instruments at the
date this statement is initially applied, should be recognized as a cumulative effect adjustment to the opening balance of retained earnings for the
fiscal year in which this statement is initially applied. SABESP is currently evaluating the effect the application of SFAS No. 157 will have on its
financial statements. 

In  February  2007,  the  FASB  issued  SFAS  No.  159  which  provides  reporting  entities  an  option  to  report  selected  financial  assets,  including
investment securities designated as available for sale, and liabilities, including most insurance contracts, at fair value. SFAS No. 159 establishes
presentation and disclosure requirements designed to facilitate comparisons between companies that choose different measurement  attributes for
similar  types  of  assets  and  liabilities.  The  standard  also  requires  additional  information  to  aid  financial  statement  users’  understanding  of  a 
reporting entity’s choice to use fair value on its earnings and also requires entities to display on the face of the balance sheet the fair value of those
assets and liabilities for which the reporting entity has chosen to measure at fair value. SFAS No. 159 is effective as of the beginning of a reporting
entity’s first fiscal year beginning after November 15, 2007. As allowed by the standard, the Company has elected not to adopt SFAS No.159 for
the measurement of any eligible assets or liabilities.  

In December 2007, the FASB issued Statement No. 141 (revised 2007), "Business Combinations.", that requires the acquiring entity in a business
combination to recognize all (and only) the assets acquired and liabilities assumed in the transaction; establishes the acquisition-date fair value as 
the measurement objective for all assets acquired and liabilities assumed; and requires the acquirer to disclose to investors and other users all of the
information they need to evaluate and understand the nature and financial effect of the business combination. SFAS 141(R) is effective for fiscal
years, and interim periods within those fiscal years, beginning on or after December 15, 2008. We do not expect the adoption of SFAS 141(R) to
have an impact on SABESP’s financial statements.  

In December 2007, the FASB issued SFAS No. 160, Noncontrolling Interests in Consolidated Financial Statements — an amendment of ARB No. 
51  (“SFAS  160”).  SFAS  160  establishes  accounting  and  reporting  standards  for  the  noncontrolling  interest  in  a  subsidiary  and  for  the
deconsolidation  of  a  subsidiary.  It  clarifies  that  a  noncontrolling  interest  in  a  subsidiary  is  an  ownership  interest  in  the  consolidated  entity  that
should be reported as equity in the consolidated financial statements. SFAS 160 is effective for fiscal years beginning on or after December 15,
2008. We do not expect the adoption of SFAS 160 to have an impact on SABESP’s financial statements.  

On March 19, 2008, the FASB issued Statement 161, which amends Statement 133 by requiring expanded disclosures about an entity’s derivative 
instruments  and  hedging  activities,  but  does  not  change  Statement  133’s  scope  or  accounting.  This  statement  requires  increased  qualitative, 
quantitative, and credit-risk disclosures. Statement 161 also amends Statement 107 to clarify that derivative instruments are subject to Statement
107’s  concentration-of-credit-risk  disclosures.  Although  the  FASB  intended  Statement  107  to  apply  to  all  financial  instruments,  including
derivatives, it believes the clarification was necessary to address differing views on whether entities’ disclosures about concentration of credit risk 
should include derivative instruments.  

F-74 

Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

This  Statement  is  effective  for  financial  statements  issued  for  fiscal  years  and  interim  periods  beginning  after  November  15,  2008.  We  do  not
expect the adoption of SFAS 161 to have an impact on SABESP’s financial statements, since we do not have derivative instruments nor hedging 
activities.  

On May 9, 2008, the FASB issued Statement 162, which reorganizes the GAAP hierarchy. The purpose of the new standard is to improve financial
reporting by providing a consistent framework for determining what accounting principles should be used when preparing U.S. GAAP financial
statements. Under this new Statement, the hierarchy is as follows:  

Level  A  —  FASB  Statements  of  Financial  Accounting  Standards  and  Interpretations,  FASB  Statement  133  Implementation  Issues,  FASB  Staff
Positions, AICPA Accounting Research Bulletins and APB Opinions that are not superseded by actions of the FASB, and rules and interpretive
releases of the SEC for SEC registrants.  

Level B — FASB Technical Bulletins and, if cleared by the FASB, AICPA Industry Audit and Accounting Guides and Statements of Position.  

Level C — AICPA Accounting Standards Executive Committee Practice Bulletins that have been cleared by the FASB, consensus positions of the
EITF, and Topics discussed in Appendix D of EITF Abstracts.  

Level  D  —  Implementation  Guides  (Q&As)  published  by  the  FASB  staff,  AICPA  Accounting  Interpretations,  AICPA  Industry  Audit  and
Accounting Guides and Statements of Position not cleared by the FASB, and practices that are widely recognized and prevalent either generally or
in the industry. 

Prior  to  issuing  FASB  Statement  No.  162,  The  Hierarchy  of  Generally  Accepted  Accounting  Principles,  GAAP  hierarchy  was  defined  in  the
AICPA  SAS  No.  69,  The  Meaning  of  Present  Fairly  in  Conformity  With  Generally  Accepted  Accounting  Principles.  This  Statement  shall  be
effective 60 days following the SEC’s approval of the Public Company Accounting Oversight Board (PCAOB) amendments to AU Section 411,
The Meaning of Present Fairly in Conformity With Generally Accepted Accounting Principles. 

On May 23, 2008, the FASB issued Statement 163 to decrease the inconsistencies in Statement 60 in accounting for financial guarantee insurance
contracts  by  insurance  companies.  Statement  163  addresses  the  differing  views  in  Statement  60  regarding  the  recognition  and  measurement  of
premium  revenues  and  claim  liabilities  and  enhances  the  disclosure  requirements  for  insurance  contracts.  Statement  163  requires  insurance
enterprises that issue financial guarantee insurance contracts to initially recognize the premium received (or premiums expected to be received) for
issuing the contract as unearned premium revenue and recognize that premium revenue over the period the protection is provided and in proportion
to  it.  Statement  163  also  requires  recognition  of  a  claim  liability  before  an  event  of  default  if  there  is  evidence  that  credit  deterioration  of  the
guaranteed  obligation  has  occurred.  The  FASB  hopes  that  these  changes  will  bring  consistency  to  financial  reporting  for  financial  guarantee
insurance contracts and will increase the comparability and quality of financial information. We do not expect the adoption of SFAS 163 to have an
impact on SABESP’s financial statements, since we do not operate as an insurance company.  

On April 25, 2008, the FASB issued FSP FAS 142-3, which amends the list of factors an entity should consider in developing renewal or extension
assumptions used in determining the useful life of recognized intangible assets under Statement 142. The new guidance applies to (1) intangible
assets  that  are  acquired  individually  or  with  a  group  of  other  assets  and  (2)  intangible  assets  acquired  in  both  business  combinations  and  asset
acquisitions.  This  FSP  is  effective  for  financial  statements  issued  for  fiscal  years  beginning  after  December  15,  2008.  SABESP  is  currently
evaluating the effect the application of FSP FAS 142-3, will have on its financial statements.  

F-75 

Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

27. ADDITIONAL DISCLOSURES REQUIRED UNDER US GAAP  

(a) Pension and post-retirement benefits 

(i) Pension plan - Plan G1 

The  Company  sponsors  a  defined-benefit  pension  plan  ("Plan  G1"),  which  is  operated  and  administered  by  “SABESPREV”.  The  status  of  this 
pension plan and the related actuarial assumptions presented in accordance with US GAAP are as follows: 

Accumulated benefit obligation 
   Vested 
   Non-vested 
Total 

Projected benefit obligation 
Fair value of plan assets 
Funded position 

Unrecognized net transition obligation 
Unrecognized net gains 
Accrued pension liability (SFAS N° 87)

Incremental Effect of Applying SFAS N° 158 
Accrued pension liability recorded in Balance 
Sheet (SFAS N° 158)

Net periodic pension cost 
     Service cost 
     Interest cost 
     Expected return on assets 
     Amortization of transition obligation 
     Amortization of actuarial gain 
     Employee contributions 

     Total net periodic pension cost 

Weighted-average assumptions 
Discount rate (nominal)
Projected long-term inflation rate 
Expected return on plan assets 
Rate of compensation increase 

2007 

2006 

755,011  
467,947  
1,222,958  

1,386,563  
(969,440)
417,123  

-  
248,972  
666,095  

331,324 
669,684 
1,001,008 

1,096,219 
(812,909)
283,310 

-
361,450 
644,760 

(248,972)

(361.450)

417,123  

283.310 

2008(1)

2007 

2006 

2005 

33,347 
164,124 
(117,317)
-
(11,032)
(13,025)

56,097 

33,440 
131,848 
(96,439)
-
(22,687)
(12,925)

33,237 

10.8% 
4.0% 
10.8% 
6.1% 

17,545  
93,270  
(83,065)
29,082  
(29,092) 
(15,410)

12,330  

12.3%  
4.0%  
12.1%  
6.1%  

9,889 
91,886 
(70,222)
29,082 
(26,341)
(13,752)

20,542 

12.3% 
4.0% 
12.1% 
6.1% 

(1) Expected NPPC (net periodic pension cost) for 2008 according to the Actuarial Report. 

F-76 

 
 
 
 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The reconciliation of changes in the projected benefit obligation and the fair value of plan assets is as follows for the years ended December 31:  

Table of Contents

Change in projected benefit obligation 
At beginning of year 
     Service cost 
     Interest cost 
     Actuarial (gain) loss 
     Benefits paid
At end of year 

Change in fair value of plan assets 
At beginning of year 
     Actual return on plan assets 
     Employer contributions 
     Employee contributions 
     Gross benefits paid 
At end of year 

Funded status 
Unrecognized actuarial gain 
Unrecognized net transition obligation 
Net amounts recognized in financial 
statements (SFAS N° 87)

2007 

2006 

2005 

1,096,219 
33,440 
131,848 
177,100 
(52,044)
1,386,563 

812,909 
183,748 
11,902 
12,925 
(52,044)
969,440 

417,123 
248,972 
-

666,095 

790,552  
17,545  
93,270  
225,373  
(30,521)
1,096,219  

678,185  
138,444  
11,391  
15,410  
(30,521) 
812,909  

283,310  
361,450  
-  

644,760  

760,015 
9,889 
91,886 
(40,978)
(30,260)
790,552 

584,702 
98,667 
11,324 
13,752 
(30,260)
678,185 

112,367 
502,352 
(29,082)

585,637 

Incremental Effect of Applying SFAS N° 158 
Net amounts recognized in financial 
statements (SFAS N° 158)

(248,972)

(361,450) 

-

417,123 

283,310  

585,637 

The measurement date used to determine pension benefits was December 31, 2007. 

The amortization of the unrecognized liability at transition is over 16 years commencing on January 1, 1990.  

The  expected  long-term  rate  of  return  on  plan  assets  was  determined  based  on  the  weighted  average  estimated  return  of  the  plan  assets,  which
includes equity securities, real state, loans and fixed income, based on information obtained from “SABESPREV”. This projected long-term rate 
includes  the  projected  long-term  inflation  rate  and  takes  into  consideration  such  factors  as  projected  future  interest  yield  curves  and  economic
projections available in the market. 

The plan’s investment policies and strategies are aimed to reduce investment risk through diversification, considering such factors as the liquidity
needs  and  funded  status  of  plan  liabilities,  types  and  availability  of  financial  instruments  in  the  local  market,  general  economic  conditions  and
forecasts as well as requirements under local pension plan law. The plan’s asset allocation and external asset management strategies are determined 
with the support of reports and analyses prepared by “SABESPREV” and independent financial consultants. Under its current investment strategy,
pension assets of the Company are allocated with a goal to achieve the following distribution: 

Assets category
Equity securities 
Real estate 
Loans 
Fixed rate securities 
Total 

F-77 

%

20 
4 
2 
74 
100 

 
 
 
 
 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Restrictions with respect to asset portfolio investments, in the case of federal government securities for internal management, are as follows:  

  papers securitized by the National Treasury will not be permitted. 

  exposure to fluctuations in exchange rates will not be permitted, i.e., if there are any exchange bills in the portfolio, swaps must be used to 

hedge existing exposure. 

Restrictions with respect to asset portfolio investments, in the case of variable-income securities for external management, are as follows: 

  day-trade operations will not be permitted. 

  sale of uncovered options is prohibited. 

  swap operations without guarantee are prohibited. 

  leverage  will  not  be  permitted,  i.e.,  operations  with  derivatives  representing  leverage  of  asset  or  selling  short  are  prohibited;  such 

operations cannot result in losses higher than invested amounts. 

The weighted average actual asset allocations of Plan G1 at December 31 by asset category, are as follows for the years ended December 31: 

Asset Category 

Equity securities 
Real estate 
Loan 
Fixed rate securities 
Total 

Expected future benefit payments, which reflect expected future service as appropriate, under Plan G1 are as follows: 

2008 
2009 
2010 
2011 
2012 
Years 2013-2022 
Total 

The expected Company’s contributions for 2008 amounts to R$11,688. 

F-78 

% 

2007 

2006 

20  
4  
2  
74  
100  

13 
6 
3 
78 
100 

G1 Plan 

59,135 
64,591 
69,747 
74,748 
80,175 
969,111 
1,317,507 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(ii) Pension plan - Plan G0 

The Company is also co-obligor to a supplemental defined benefit pension plan ("Plan G0").  

The status of the supplemental pension benefit plan and the related actuarial assumptions used in accordance with US GAAP are as follows: 

Accumulated benefit obligation 
   Vested 
   Non-vested 
Total 

Projected benefit obligation 
Funded position 

Unrecognized actuarial gain
Accrued pension liability (SFAS N° 87)

2007 

2006 

1,038,593  
67,854  
1,106,447  

1,237,667  
1,237,667  

(45,043)
1,192,624  

1,195,637 
1,299 
1,196,936 

1,244,067 
1,244,067 

(87.575)
1.156.492 

Incremental Effect of Applying SFAS N° 158 

45,043  

87,575 

Accrued pension liability recorded in balance sheet 
(SFAS N° 158)

1,237,667  

1.244,067 

Net periodic pension cost 
Service cost 
Interest cost 
Amortization of transition obligation 
Total net periodic pension cost 

Weighted-average assumptions 
Discount rate (nominal)
Projected long-term inflation rate 
Rate of compensation increase 

2008(1)

2007 

2006 

2005 

9 
140,879 
-
140,888 

24 
146,167 
-
146,191 

10.8% 
4.0% 
6.1% 

397  
126,262  
-  
126,659  

12.3%  
4.0%  
6.1%  

1,858 
121,685 
-
123,543 

12.3% 
4.0% 
6.1% 

(1) Expected NPPC (net periodic pension cost) for 2007 according to the Actuarial Report. 

F-79 

 
 
 
 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

The reconciliation of changes in the projected benefit obligation is as follows: 

Table of Contents

Change in projected benefit obligation 
At beginning of year 
     Service cost 
     Interest cost 
     Actuarial (gain) loss 
     Benefits paid
At end of year 

Funded status 
     Unrecognized actuarial gain 
Net amounts recognized in financial 
statements (SFAS N° 87)

Incremental Effect of Applying SFAS N° 158 
Net amounts recognized in financial 
statements (SFAS N° 158)

2007 

Years Ended December 31, 
2006 

2005 

1,244,067 
24 
146,167 
(42,532)
(110,059)
1,237,667 

1,237,667 
(45,043)

1,096,517  
397 
126,262 
121,568 
(100,677)
1,244,067 

1,244,067  
(87,575) 

1,034,285 
1,858 
121,685 
34,975 
(96,286)
1,096,517 

1,096,517 
33,994 

1,192,624 

1,156,492  

1,130,511 

45,043 

87,575  

-

1,237,667 

1,244,067  

1,130,511 

The date used to determine pension benefits was December 31, 2007. 

The amortization of the unrecognized liability at transition was over 15 years commencing on January 1, 1988. 

Expected future benefit payments, which reflect expected future service as appropriate, under Plan G0 are as follows: 

2008 
2009 
2010 
2011 
2012 
Years 2013-2022 
Total 

(b) Income taxes (FIN 48 implementation):  

G0 Plan 

109,920 
109,837 
109,750 
109,742 
109,661 
1,061,948 
1,610,858 

The Company adopted the provisions of FIN 48 on January 1, 2007 and recognizes the effect of income tax positions only if those positions are
more likely than not of being sustained. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs.
As a result of the implementation of FIN 48, the company did not record any further tax benefit  related to uncertainty in income taxes, beyond
those already recorded under BR CL (notes 11 and 12). As of December 31, 2007 SABESP has no unrecognized tax benefit  

In compliance with FIN 48 the company has the accounting policy of classifying income taxes interest and penalties as Financial expenses. 

Brazilian income tax returns are normally open to examination by Brazilian tax authority for five years.  

(c) Other information  

(i) Concentration of labor in unions 

Approximately 70% of all the Company’s employees are members of unions. The four main unions that represent the Company’s employees are 
the Sindicato dos Trabalhadores em Água, Esgoto e Meio Ambiente de São Paulo—SINTAEMA, Sindicato dos Trabalhadores da Região Urbana 
de Santos, São Vicente, Baixada Santista, Litoral Sul e Vale Ribeira—SINTIUS, the Sindicato dos Engenheiros do Estado de São Paulo—SEESP
and the Sindicato dos Advogados de São Paulo—SASP. Every year the Company negotiates collective bargaining agreements, which establish the
level of compensation and other benefits of the employees. 

F-80 

 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

(ii) Law 11.445/07 

On  January  5,  2007,  Law  No.  11,445  was  enacted  to  regulate  the  basic  sanitation  industry  in  Brazil.  This  law  is  in  its  initial  stage  of
implementation and we cannot anticipate the effects that it will have on our operations and business. There are several uncertainties related to the
new legislation, mainly with respect to the creation of the regulatory authority for the basic sanitation industry and the tariff adjustment formula
and structure that will be used for new concession contracts that we enter into under the new law, which could have a material adverse effect on us. 

F-81 

Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

28. SUPPLEMENTAL INFORMATION  

(a) Statement of Cash Flow 

The  statement  of  cash  flows  reflects  the  Company’s  operating,  investing  and  financing  activities  derived  from  accounting  records  prepared  in
accordance with Brazilian Corporate Law and has been presented in accordance with International Accounting Standards (IAS) No. 7 - “Cash Flow 
Statements”. 

Cash flow from operating activities:
Net income for the year 
Adjustments to reconcile net income: 
 Deferred taxes and contributions 
 Provisions for contingencies 
 Reversal of provision for losses 
 Other provisions 
 Pension obligation 
 Write-off of property, plant and equipment 
 Write-off of deferred assets 
 Write-off of investments 
 Gain in the sale of fixed assets 
 Depreciation 
 Amortization 
 Interests calculated on loans and financing payable 
 Interests, Monetary and foreign exchange variation 
 Bad debt expense 

Changes in Working Capital: 
 Customers accounts receivable 
 Inventories 
 Transactions with related parties 
 Other assets 

Change in Liabilities: 
 Suppliers 
 Payroll and related charges 
 Taxes and contributions Payable 
 Contingencies 
 Other obligations 
Cash flow from operating activities

Cash flow from investment Activities: 
 Purchase of property, plant and equipment 
 Increase in intangibles 
 Sale of property, plant and equipment 
 Increase in deferred asset 
Net cash from in investment activities

Cash flow from financing activities 

Loans and Financing 
 Funds raised 
 Repayments 

              Year ended December 31, 
 2006 

2005 

2007 

1,048,703 

(104,432)
477,722 
(945)
155 
59,931 
68,349 
1,276 
-
219 
597,118 
25,431 
519,672 
(91,542)
323,339 

(400,944)
(3,307)
(81,741)
8,997 

(14,055)
(10,908)
(22,840)
(145,668)
(38,930)
2,215,600

(848,878)
(32,818)
-
-
(881,696)

778,905  

(8,473) 
144,480  
(8,819)
7,504  
60,070  
47,807  
5,195  
20  
(1,294)
614,051  
28,120  
619,909  
(8,380)
411,918  

(458,824)
(12,851) 
(151,343) 
(66,412)

50,176  
60,416  
(43,899) 
(79,801) 
32,349  

2,020,824

(842,454) 
(12,630) 
7,837  
(2,789) 
(850,036)

865,647 

(32,470)
143,586 

68,665 
19,051 
6,700 
4,360 

564,392 
31,589 
677,921 
(226,573)
255,292 

(359,894)
(6,466)
(250,530)
(15,288)

8,950 
10,061 
(50,064)
(13,921)
36,567 
1,737,575

(638,372)
(4,748)
-
(106)
(643,226)

222,474 
(1,283,201)

706,774  
(1,660,482)

1,153,479 
(1,991,370)

F-82 

 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Table of Contents

Payment of interest on shareholders’ equity
Net cash used in financing activities

Increase in cash and cash equivalents 

Cash and cash equivalents at the beginning of the year 
Cash and cash equivalents at the end of the year 

Supplementary cash flow information:
Interests and fees paid on loans and financings 
Income tax and social contribution paid 

Non - cash transactions
Property, plant and equipment received as donations 

2007 

Year ended December 31, 
 2006 

(136,386)
(1,197,113)

(169,047)
(1,122,755)

2005 

(81,842)
(919,733)

136,791 

328,206 
464,997 

548,417 
499,318 

48,033  

280,173  
328,206  

637,989  
404,272  

174,616 

105,557 
280,173 

701,641 
359,826 

17,565 

27,870  

13,529 

F-83 

 
Table of Contents

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

29. SEGMENT INFORMATION  

The Company has two identifiable reportable segments: (i) water supply systems; and (ii) sewage collection systems. The chief operating decision
maker uses these two segments to analyse the Company and uses income from operations before financial expenses, net as a measure of segment
profit or loss. 

Total assets by segment is not readily available, and therefore not regularly provided to, nor reviewed by the Company’s chief operating decision 
maker.  However,  total  property,  plant  and  equipment  by  segment  is  readily  available  and  reviewed regularly  by  the  Company’s  chief  operating 
decision maker to make decisions about resource allocations and to measure performance. As such, management believes that total property, plant
and equipment is a relevant measure for its operating segments and is disclosed by segment in Note 8. 

Gross revenue from sales and services 
Gross sales revenue – wholesale 
Other sales and services 

Taxes on sales and services 
Net revenue from sales and services 
Cost of sales and services and operating 
expenses 
Income from operations before financial 
expenses, net 

Depreciation and amortization charges
BR CL 
US GAAP 

Additions to property, plant and 
equipment 
BR CL 
US GAAP 

Year Ended December 31, 2007 
Sewage 
system 

Consolidated 

Water 
system 

3,325,826 
291,705 
64,359 
3,681,890 
(272,575)
3,409,315 

2,724,400  
8,002  
33,919  
2,766,321  
(204,794)
2,561,527  

6,050,226 
299,707 
98,278 
6,448,211 
(477,369)
5,970,842 

(2,534,679)

(1,359,759) 

(3,894,438)

874,636 

1,201,768  

2,076,404 

Year Ended December 31, 2007 
Common 
assets and 
concession 
assets 
acquired 

Consolidated 

Water 
system 

Sewage 
System 

(346,887)
(400,187)

(275,662)
(318,018)

-  
-  

(622,549)
(718,205)

394,951 
394,951 

479,463 
523,493 

46,662  
46,662  

921,076 
965,106 

F-84 

 
 
 
 
 
 
 
 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Table of Contents

Gross revenue from sales and services 
Gross sales revenue – wholesale 
Other sales and services 

Taxes on sales and services 
Net revenue from sales and services 
Cost of sales and services and operating 
expenses 
Income from operations before financial 
expenses, net 

Depreciation and amortization charges 
BR CL 
US GAAP 

Additions to property, plant and 
equipment 
BR CL 
US GAAP 

Gross revenue from sales and services 
Gross sales revenue – wholesale 
Other sales and services 

Taxes on sales and services 
Net revenue from sales and services 
Cost of sales and services and operating 
expenses 
Income from operations before financial 
expenses, net 

Year Ended December 31, 2006 
Sewage
system 

Consolidated 

Water 
system 

3,093,122 
265,298 
60,738 
3,419,158 
(241,885)
3,177,273 

2,530,796  
1,870  
32,188  
2,564,854  
(214,794) 
2,350,060  

5,623,918 
267,168 
92,926 
5,984,012 
(456,679)
5,527,333 

(2,460,178)

(1,263,178)

(3,723,356)

717,095 

1,086,882  

1,803,977 

Year Ended December 31, 2006 
Common 
assets and 
concession 
assets 
acquired 

Sewage 
System 

Water 
system 

(361,675)
(411,959)

(280,496)
(319,493)

Consolidated 

- 
-

(642,171)
(731,452)

349,708 
349,708 

430,305 
453,949 

24,934 
24,934 

804,947 
828,591 

Year Ended December 31, 2005 
Sewage
system 

Consolidated 

Water 
system 

2,771,633 
241,209 
57,034 
3,069,876 
(213,394)
2,856,482 

2,256,857  
-  
29,593  
2,286,450  
(189,569) 
2,096,881  

5,028,490 
241,209 
86,627 
5,356,326 
(402,963)
4,953,363 

(2,205,146)

(1,058,644)

(3,263,790)

651,336 

1,038,237  

1,689,573 

F-85 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Table of Contents

Year Ended December 31, 2005 
Common 
assets and 
concession 
assets 
acquired 

Sewage 
System 

Water 
system 

(336,450)
(392,449)

(259,531)
(302,728)

Consolidated 

- 
- 

(595,981)
(695,177)

301,815 
301,815 

345,426 
376,560 

30,995 
30,995 

678,236 
709,370 

Depreciation and amortization charges
BR CL 
US GAAP 

Additions to property, plant and 
equipment 
BR CL 
US GAAP 

30. SUBSEQUENT EVENT 

I – Program Contracts: 

In certain Program Contracts that was signed in 2008, the Company assumed commitments to financially participate in social and environmental
sanitation actions. These commitments are being amortized according to the effective period of the program contracts. On March 31, 2008 the total
amount of these Intangible assets (net of amortization) was R$ 57,710.  

II – Granting of loans and financing  

Executive Board of the Inter-American Development Bank (IADB)  

On  April  30,  2008,  the  Executive  Board  of  the  Inter-American  Development  Bank  (IADB)  approved  the  granting  of  a  loan  to  SABESP,  in  the
amount  of  US$250  million  (AB  loan).  The  funds  will  be  used  to  refinance  debts  falling  due  and  to  implement  a  portion  of  the  Company’s 
investment plan. The agreement was signed on May 27, 2008, with the following characteristics:  

C. 1983 A 
C. 1983 B/BR - 1 
C. 1983B/BR – 2 

US$ Trenches 
100,000 
100,000 
50,000 

Adjustment 
LIBOR 
LIBOR 
LIBOR 

Interest 
2.375% p.a. 
2.075% p.a. 
1.875% p.a. 

Maturity date 
May/2023 
May/2020 
May/2018 

Caixa Econômica Federal - CEF - Programa Saneamento para Todos (Sanitation Program) – FGTS  

Funds  CEF  granted  a  financing  line  totaling  R$626.91  million,  for  71  water  supply,  sewage  and  integrated  sewage  systems  projects,  in
municipalities of the São Paulo, Santos and Campinas metropolitan areas. On May, 2008, were signed 69 agreements in the amount of R$ 619.34
million,  and  the  disbursements  should  take  place  concurrently  to  the  construction  works,  which  will  be  completed  within  48  months.  The
agreements were signed with the following characteristics:.  

Grace period 
Repayment period 
Interest rate 
Management fee 
Risk fee 

48 months 
240 months 
6.00% p.a. 
1.05% p.a. 
0.30% p.a.

BNDES (National Bank for Economic and Social Development) - FAT (Workers Assistance Fund) funds 

BNDES approved a financing line totaling R$174.52 million, for 10 sewage systems projects in the São Paulo, Santos and Campinas metropolitan
region. The financing agreement was signed in May 2008, and disbursements should take place concurrently to the construction works, which will
be completed within 48 months. The agreements were signed with the following characteristics:  

F-86 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

NOTES TO THE FINANCIAL STATEMENTS
AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts in thousands of Brazilian reais-R$, unless otherwise stated)

Table of Contents

Grace period 
Repayment period 
Interest rate 

III – Confidentiality agreement with EMAE:  

36 months 
120 months 
2.15% p.a. + TJLP 

On  May  30,  2008  SABESP  published  a  Material  Fact  informing  that  it  has  entered  into  a  confidentiality  agreement  with  EMAE  -  Empresa
Metropolitana de  Águas e Energia S.A. ("EMAE")  to  carry out  a  valuation of this  company, without any binding effects,  aiming at an eventual
acquisition  of  assets  which,  among  other  alternatives,  may  result  in  the  corporate  restructuring  of  EMAE  or  the  acquisition  of  its  capital  by
SABESP, currently held by the State of São Paulo, in accordance to the current legislation and conditions of operations of this nature.  

IV – Public-Private Partnership agreement (“PPP”)  

On  June  2008,  SABESP  entered  into  a  public-private  partnership  agreement  (“PPP”)  with  Cab  Spat,  a  special  purpose  company  whose  main 
shareholders are Cab Ambiental and Galvão Engenharia.  

Cab Spat will be responsible for (i) expansion of Taiaçupeba Plant water treatment capacity from 10 cubic meters per second to 15 cubic meters per
second, (ii) construction of 17.7 kilometers of water transmission mains, (iii) construction of 4 water storage tanks with total capacity of 70,000
cubic meters, (iv) installation of boosters, and (v) construction of pumping stations. The total capital expenditure for these investments will amount
to approximately R$ 300 million.  

Cab Spat shall also provide maintenance and operation services such as (i) dams maintenance, (ii) sludge treatment and disposal, (iii) maintenance
of the civil works and electromechanical maintenance, (iv) complementary services of water transmission and supply.  

The total amount expected to be paid by SABESP at the end of this contract is around of R$ 1 billion, including services and investments.  

Currently, Taiaçupeba Plant produces and provides water to 3.1 million people. Its expansion will enable SABESP to supply water to an additional
1.5 million people. Therefore, this PPP is crucial to assure proper water supply in the large metropolitan area of the City of São Paulo. 

F-87 

Table of Contents

Exhibit 12.1 

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 

Certification of Gesner José de Oliveira Filho, Chief Executive Officer

I, Gesner José de Oliveira Filho, certify that:  

1. I have reviewed this annual report on Form 20-F of Companhia de Saneamento Básico do Estado de São Paulo - SABESP;  

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make 
the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by 
this report;  

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects 
the financial condition, results of operations and cash flows of the company as of, and for, the periods presented in this report;

4. The company’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined 
in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 
15d-15(f)) for the company and have:  

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to 
ensure that material information relating to the company, including its consolidated subsidiaries, is made known to us by others within those 
entities, particularly during the period in which this report is being prepared;  

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our 
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external 
purposes in accordance with generally accepted accounting principles;  

(c) Evaluated the effectiveness of the company’s disclosure controls and procedures and presented in this report our conclusions about the 
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and  

(d) Disclosed in this report any change in the company’s internal control over financial reporting that occurred during the period covered by the 
annual report that has materially affected, or is reasonably likely to materially affect, the company’s internal control over financial reporting; and  

5. The company’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, 
to the company’s auditors and the audit committee of the company’s board of directors (or persons performing the equivalent functions):  

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are 
reasonably likely to adversely affect the company’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the company’s internal 
control over financial reporting.  

Dated: 

By: 
Name: 
Title: 

July 10, 2008 

/s/ Gesner José de Oliveira Filho 

  Gesner José de Oliveira Filho
  Chief Executive Officer 

 
 
Table of Contents

Exhibit 12.2 

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 

Certificate of Rui de Britto Álvares Affonso, Chief Financial Officer and Investor Relations Officer

I, Rui de Britto Álvares Affonso, certify that:  

1. I have reviewed this annual report on Form 20-F of Companhia de Saneamento Básico do Estado de São Paulo - SABESP;  

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by
this report;  

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects
the financial condition, results of operations and cash flows of the company as of, and for, the periods presented in this report;

4. The company’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined 
in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and
15d-15(f)) for the company and have:  

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to
ensure  that  material  information  relating  to  the  company,  including  its  consolidated  subsidiaries,  is  made  known  to  us  by  others  within  those
entities, particularly during the period in which this report is being prepared;  

(b)  Designed  such  internal  control  over  financial  reporting,  or  caused  such  internal  control  over  financial  reporting  to  be  designed  under  our
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external
purposes in accordance with generally accepted accounting principles;  

(c)  Evaluated  the  effectiveness  of  the  company’s  disclosure  controls  and  procedures  and  presented  in  this  report  our  conclusions  about  the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and  

(d) Disclosed in this report any change in the company’s internal control over financial reporting that occurred during the period covered by the 
annual report that has materially affected, or is reasonably likely to materially affect, the company’s internal control over financial reporting; and  

5. The company’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting,
to the company’s auditors and the audit committee of the company’s board of directors (or persons performing the equivalent functions):  

(a)  All  significant  deficiencies  and  material  weaknesses  in  the  design  or  operation  of  internal  control  over  financial  reporting  which  are
reasonably likely to adversely affect the company’s ability to record, process, summarize and report financial information; and

(b)  Any  fraud,  whether  or  not  material,  that  involves  management  or  other  employees  who  have  a  significant  role  in  the  company’s  internal 
control over financial reporting.  

Dated: 

By: 
Name: 

Title: 

July 10, 2008 

/s/ Rui de Britto Álvares Affonso 

  Rui de Britto Álvares Affonso 

Chief Financial Officer and Investor 
Relations Officer 

 
 
 
Table of Contents

Exhibit 13.1 

CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 

     Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States
Code), I, Gesner José de Oliveira Filho, undersigned Chief Executive Officer of Companhia de Saneamento Básico do Estado de São Paulo –
SABESP (the “Company”), do hereby certify, to the best of my knowledge, that: 

     The  Annual  Report  on  Form  20-F  for  the  fiscal  year  ended  December  31,  2007  of  the  Company  fully  complies  with  the  requirements  of
Section  13(a)  or  15(d)  of  the  Securities  Exchange  Act  of  1934  and  the  information  contained  in  the  Form  20-F  fairly  presents,  in  all  material 
respects, the financial condition and results of operations of the Company. 

Dated: 

By: 

Name: 
Title: 

July 10, 2008 

/s/ Gesner José de Oliveira Filho

  Gesner José de Oliveira Filho
  Chief Executive Officer

 
 
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Exhibit 13.2 

CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 

     Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States
Code), I, Rui de Britto Álvares Affonso, undersigned Chief Financial Officer and Investor Relations Officer of Companhia de Saneamento Básico
do Estado de São Paulo – SABESP (the “Company”), do hereby certify, to the best of my knowledge, that: 

     The  Annual  Report  on  Form  20-F  for  the  fiscal  year  ended  December  31,  2007  of  the  Company  fully  complies  with  the  requirements  of
Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and information contained in the Form 20-F fairly presents, in all material respects, 
the financial condition and results of operations of the Company. 

Dated: 

July 10, 2008 

By: 
Name: 

Title: 

/s/ Rui de Britto Álvares Affonso  
Rui de Britto Álvares Affonso 
Chief Financial Officer and Investor 
Relations Officer 

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EXHIBIT 15.1 

a) Disclosure Controls and Procedures.

CONTROLS AND PROCEDURES 

We maintain disclosure controls and procedures (as defined in the U.S. Securities Exchange Act of 1934 under Rule 13a-15(e)) that are designed
to ensure that information required to be disclosed by us in the reports that we file and submit under the Exchange Act is recorded, processed,
summarized  and  reported  within  the  time  periods  specified  in  Securities  and  Exchange  Commission  rules  and  forms,  and  accumulated  and
communicated to management, including our Chief Executive Officer and Chief Financial Officer and Investor Relations Officer, to allow timely
decisions regarding required disclosures. Our management, under the supervision and with the participation of our Chief Executive Officer and
our  Chief  Financial  Officer  and  Investor  Relations  Officer,  has  evaluated  the  effectiveness  of  our  disclosure  controls  and  procedures  as  of
December 31, 2007, the end of the period covered by this annual report. Based on this evaluation, our management, including our Chief Executive
Officer and our Chief Financial Officer and Investor Relations Officer, has concluded that as of December 31, 2007, our disclosure controls and
procedures were effective at the reasonable assurance level.  

b) Management’s Report on Internal Control over Financial Reporting 

The management of Companhia de Saneamento Básico do Estado de São Paulo - SABESP (the “Company”) is responsible for establishing and 
maintaining  effective  internal  control  over  financial  reporting  and  for  its  assessment  of  the  effectiveness  of  internal  control  over  financial
reporting as defined in Rules 13a-15(f) under the U.S.Securities Exchange Act of 1934.  

The Company’s internal control over financial reporting is a process designed by, or under the supervision of, the Company’s Chief Executive 
Officer  and  Chief  Financial  Officer  and  Investor  Relations  Officer  and  effected  by  the  Company’s  board  of  directors,  Audit  Committee, 
management, and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial
statements  for  external  purposes  in  accordance  with  generally  accepted  accounting  principles.  The  Company’s  internal  control  over  financial 
reporting  includes  those  policies  and  procedures  that  (1)  pertain  to  the  maintenance  of  records  that,  in  reasonable  detail,  accurately  and  fairly
reflect the transactions and dispositions of the assets of the Company; (2) provide reasonable assurance that transactions are recorded as necessary
to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of
the Company are being made only in accordance with authorizations of management and directors of the Company; and (3) provide reasonable
assurance  regarding  prevention  or  timely  detection  of  unauthorized  acquisition,  use,  or  disposition  of  the  Company’s  assets  that  could  have  a 
material effect on the financial statements.  

Because of its inherent limitations, internal control over financial reporting may not prevent or detect material misstatements on a timely basis.
Therefore even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation
and presentation. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate
because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.  

Management assessed the effectiveness of the Company’s internal control over financial reporting as of December 31, 2007, based on the criteria
established  in  Internal  Control  –  Integrated  Framework  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission  -
COSO.  Based  on  that  assessment,  management  has  concluded  that  as  of  December  31,  2007,  the  Company’s  internal  control  over  financial 
reporting is effective.  

The Company's independent registered public accounting firm, Deloitte Touche Tohmatsu Auditores Independentes, have audited the Company’s 
internal control over financial reporting, and the report of the auditors is included in Part II, Item 15 (c).  

/s/GESNER JOSÉ DE OLIVEIRA FILHO
Gesner José de Oliveira Filho  
Chief Executive Officer  
July 10, 2008  

/s/RUI DE BRITTO ÁLVARES AFFONSO
Rui de Britto Álvares Affonso  
Chief Financial Officer and Investor Relations Officer  
July 10, 2008  

c) Attestation Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm  

To the Board of Directors and Shareholders of  
Companhia de Saneamento Básico do Estado de São Paulo - SABESP 

We  have  audited  the  internal  control  over  financial  reporting  of  Companhia  de  Saneamento  Básico  do  Estado  de  São  Paulo  -  SABESP  (the 
“Company”)  as  of  December  31,  2007,  based  on  criteria  established  in  Internal  Control  —  Integrated  Framework  issued  by  the  Committee  of
Sponsoring Organizations of the Treadway Commission (COSO). The Company’s management is responsible for maintaining effective internal 
control  over  financial  reporting  and  for  its  assessment  of  the  effectiveness  of  internal  control  over  financial  reporting,  included  in  the
accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s 
internal control over financial reporting based on our audit.  

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards
require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was
maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk
that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and
performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our
opinion.  

A company’s internal control over financial reporting is a process designed by, or under the supervision of, the company’s principal executive and
principal financial officers, or persons performing similar functions, and effected by the company’s board of directors, management, and other
personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external
purposes  in  accordance  with  generally  accepted  accounting  principles.  A  company’s  internal  control  over  financial  reporting  includes  those 
policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and
dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of
financial  statements in  accordance with  generally  accepted  accounting principles, and that receipts  and expenditures of the  company are being
made  only  in  accordance  with  authorizations  of  management  and  directors  of  the  company;  and  (3)  provide  reasonable  assurance  regarding
prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the 
financial statements.  

Because  of  the  inherent  limitations  of  internal  control  over  financial  reporting,  including  the  possibility  of  collusion  or  improper  management
override of controls, material misstatements due to error or fraud may not be prevented or detected on a timely basis. Also, projections of any
evaluation of the effectiveness of the internal control over financial reporting to future periods are subject to the risk that the controls may become
inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. 

In  our  opinion,  the  Company  maintained,  in  all  material  respects,  effective  internal  control  over  financial  reporting  as  of  December  31,  2007,
based  on  the  criteria  established  in  Internal  Control  —  Integrated  Framework  issued  by  the  Committee  of  Sponsoring  Organizations  of  the
Treadway Commission (COSO).  

We  have  also  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board  (United  States),  the  financial
statements as of and for the year ended December 31, 2007 of the Company and our report dated July 10, 2008 expressed an unqualified opinion
on  those  financial  statements,  containing  explanatory  paragraphs  concerning  (1)  the  Company’s  negotiations  with  the  São  Paulo  State 
Government  regarding the  reimbursement of the  amounts for supplementary retirement and  pension  paid  by  the Company; (2) the  Company’s 
agreement  with  the  São  Paulo  Municipal  Government,  seeking  stability  in  the  provision  of  services  in  the  municipality  of  São  Paulo  and
establishment of sanitation and environmental actions supplementary to the actions taken by the Municipality; (3) how the Company´s application
of accounting practices adopted in Brazil vary in certain respects from accounting principles generally accepted in the United States of America;
and (4) the presentation of the statements of cash flows.  

/s/ Deloitte Touche Tohmatsu  
Auditores Independentes  

July 10, 2008  
São Paulo, Brazil.  

d) Changes in internal control over financial reporting 

There have been improvements in our internal control over financial reporting as of December 31, 2007. Our management adjusted the current
controls  and  implemented  other  controls  that  reinforced  our  internal  control  structure  and  guaranteed  a  substantial  improvement  in  the
effectiveness of the financial statements such as the updating of the Procedure for the Segregation of Duties.  

Management, under the supervision and with the participation of our Chief Executive Officer and Chief Financial Officer and Investor Relations
Officer, has been actively engaged in the implementation of remediation efforts to address the material weaknesses that was in existence as of
December 31, 2006 and previously disclosed in our 2006 Annual Report on Form 20-F.  

The following describes the major controls that have been implemented to remediate  the material weaknesses  that existed as of December 31,
2006:

1. implemented more stringent policies and procedures for our processes over accounting reconciliation;  

2. performed an extensive study and a reconciliation of the balance of the Unidentified Collections (Unapplied Cash Receipts) account, included
as part of Customer Accounts Receivable;  

3.  introduced  a  review  by  an  independent  department  to  ensure  the  timely  and  accurate  transfer  of  amounts  from  the  construction-in-progress 
account to the corresponding accounts for property, plant and equipment;  

4. automated certain controls that were performed manually;  

5.  performed  a  month-end  review  and  closing  processes  as  well  as  provided  additional  oversight  and  supervision  within  the  accounting
department;  

6. promoted programs that provide ongoing training and professional education as well as development plans for the accounting department and
to improve internal communications procedures throughout the Company.  

All of this work was conducted by a group designed specifically to address the internal control issues related to the reconciliation of the balance
of  the  Unidentified  Collections  account  and  the  timely  and  accurate  transfer  of  amounts  from  the  construction-in-progress  account  to  the 
corresponding accounts for property, plant and equipment.  

As of December 31, 2007, the group specifically designated to address the internal control issues completed the above remediation efforts. As a
result of this work, we have concluded that the previous material weaknesses as disclosed in our 2006 Annual Report on Form 20-F have been 
remediated as of December 31, 2007.  

/s/ José de Oliveira Filho 
Gesner José de Oliveira Filho 
Chief Executive Officer 
July 10, 2008 

/s/ Rui de Britto Álvares Affonso 
Rui de Britto Álvares Affonso 
Chief Financial Officer and Investor Relations Officer 
July 10, 2008