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Companhia de saneamento Basico Do Estado De Sao Paulo - Sabesp

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FY2015 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

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

FORM 20-F

OR

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

DECEMBER 31, 2015

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

OR

For the transition period from ________________ to _______________________

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, Brazil
(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, Brazil

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

Title of each class
Common Shares, without par value
American Depositary Shares, evidenced by American Depositary Receipts, each representing one Common 
Share

Name of each exchange on which registered
New York Stock Exchange

New York Stock Exchange

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.

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.

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

683,509,869 Shares of Common Stock

Yes No 

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 

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 has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted 
and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to 
submit and post such files).

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):

Yes No 

Large accelerated 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 Accounting Standards Board Other 

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

PART I

ITEM 1. 
ITEM 2. 
ITEM 3. 
ITEM 4. 
ITEM 5. 
ITEM 6. 
ITEM 7. 
ITEM 8. 
ITEM 9. 
ITEM 10. 
ITEM 11.
ITEM 12. 

PART II 

ITEM 13. 
ITEM 14. 
ITEM 15. 
ITEM 16. 

PART III 

ITEM 17. 
ITEM 18. 
ITEM 19. 

PART IV 

SIGNATURES 

IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS 
OFFER STATISTICS AND EXPECTED TIMETABLE 
KEY INFORMATION 
INFORMATION ON THE COMPANY 
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 

DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES 
MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS 
CONTROLS AND PROCEDURES 

FINANCIAL STATEMENTS 
FINANCIAL STATEMENTS 
EXHIBITS 

Page

6 
6 
6 
6 
24 
80 
106 
115 
124 
127 
132 
146 
148 
151 
151 
 151 
151 

153 
158 
158 
158 
158 
159 
159 

General

PRESENTATION OF FINANCIAL AND OTHER INFORMATION

We maintain our books and records in reais.  We prepare our financial statements in accordance with International Financial Reporting Standards, or “IFRS”, as issued 
by the International Accounting Standards Board, or the “IASB”.  Our financial statements as of December 31, 2015 and 2014 and for the three years ended December 31, 
2015 have been audited, as stated in the report appearing herein, and are included in this annual report on Form 20-F.

Certain  figures  included  in  this  annual  report  have  been  subject  to  rounding  adjustments.   Accordingly,  figures  shown  as  totals  in  certain  tables  may  not  be  an 

arithmetic aggregation of the figures which precede them.

Water Crisis

Our results and operational performance for the fiscal year ended December 31, 2015, were adversely impacted by the most serious drought in our serviced region in 
85 years.  Both the water conservation measures we implemented to mitigate the effects of the drought on our water supply and a significantly heightened public awareness 
of the need to conserve water during the current water crisis negatively impacted our revenues.  Improved rainfall throughout the rainy season that began in October 2015, 
the collaborative efforts between us and the population we service and emergency construction conducted by us throughout 2014 and 2015 in order to reduce the impacts of 
the water crisis resulted in an increase in the volume of water in the reservoirs in our largest market, the São Paulo metropolitan region, at the end of 2015 compared to the 
end of 2014.  As of December 31, 2015, the reservoirs in the São Paulo metropolitan region, where our largest market is located, contained 703 billion liters of bulk water 
storage for treatment, compared to 301 billion liters available for treatment as of December 31, 2014.  Under normal circumstances, we withdraw 6.2 billion liters per day 
(equivalent to the total water production of 71.4 m³/s in February 2014 for the São Paulo metropolitan region) from the reservoirs.  This volume decreased to 4.7 billion 
liters per day during the drought (equivalent to the total water production of 54.8 m³/s in December 2015 for the São Paulo metropolitan region).  Average monthly water 
production in 2015 was of 52.0 m³/s, compared to 62.2 m³/s in 2014 and 69.1 m³/s in 2013.  For more information, see “Item 3.D. Risk Factors—Risks Relating to Our 
Business—The  measures  we  took  to  mitigate  the  effects  of  the  drought  resulted  in  a  significant  decrease  in  the  volume  of  water  billed  and  revenues  from  services  we 
provide, which had a material adverse effect on our company and could continue to do so if the drought escalates in severity” and “Item 4.B. Business Overview—The 
Current Water Crisis”. 

Convenience Translations

We have translated some of the real amounts contained in this annual report into U.S. dollars.  The rate used to translate such amounts in respect of the year ended 
December 31, 2015 was R$3.9048 to US$1.00, which was the commercial rate for the purchase of U.S. dollars in effect on December 31, 2015, as reported by the Central 
Bank.  The U.S. dollar equivalent information presented in this annual report is provided solely for the convenience of the reader and should not be construed as implying 
that the real amounts represent, or could have been or could be converted into, U.S. dollars at the above rate.  See “Item 3.A. Selected Financial Data—Exchange Rates” 
for more detailed information regarding the Brazilian foreign exchange system and historical data on the exchange rate of the real against the U.S. dollar.

Rounding

Some percentages and numbers included in this annual report have been subject to rounding adjustments.  Accordingly, figures shown as totals in certain tables may 

not be an arithmetic aggregation of the figures that precede them.

Other Information

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.

1

In addition, references to:

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“ARSESP” are to the São Paulo State Sanitation and Energy Regulatory Agency (Agência Reguladora de Saneamento e Energia do Estado de São Paulo);

“ADR” or “ADRs” are to American Depositary Receipt or American Depositary Receipts, respectively;

“ADS” or “ADSs” are to American Depositary Share or American Depositary Shares, respectively;

“Brazil” are to the Federative Republic of Brazil;

“Central Bank” are to the Central Bank of Brazil;

“CVM” are to the Comissão de Valores Mobiliários, the Brazilian regulator of securities;

“federal government” and “Brazilian government” are to the federal government of the Federative Republic of Brazil and “state government” are to the state 
government of the State of São Paulo;

“real,” “reais” or “R$” are to the Brazilian real, the official currency of Brazil;

“Regional Systems” are to the area where the regional systems’ executive office operates, comprising 326 municipalities in the interior and coastline regions 
of the state of São Paulo;

“São  Paulo  metropolitan  region,”  with  respect  to  our  operations,  are  to  the  area  where  the  metropolitan  executive  office  operates,  comprising  38 
municipalities, including the city of São Paulo;

“sewage  coverage  ratio”  are to the  ratio  between the  number  of residences connected to the  sewage  collection  network,  divided  by  the number of  urban 
residences in a certain area; 

“State” are to the State of São Paulo, which is also our controlling shareholder;

“U.S. dollars” or “US$” are to the United States dollar, the official currency of the United States;

“water coverage ratio” are to the ratio between the number of residences connected to the water supply network, divided by the number of urban residences 
in a certain area; and

“water crisis” are to the drought we have experienced from late 2013 throughout most of 2015.  This drought is the most serious drought that our service 
region has experienced in 85 years and primarily affects the Cantareira System, our largest water production system.

Information  in  this  annual  report  related  to  liters,  water  and  sewage  volumes,  number  of  employees,  kilometers,  water  and  sewage  connections,  population  served, 

operating productivity, water production, water and sewage lines (in kilometers), water loss index and investment in programs has not been audited.

Market Information

We make statements in this annual report about our market share and other information relating to Brazil and the industry in which we operate.  We have made these 
statements  on  the  basis  of  information  from  third-party  sources  and  publicly  available  information  that  we  believe  is  reliable,  such  as  information  and  reports  from  the 
Brazilian  Institute  of  Geography  and  Statistics  (Instituto  Brasileiro  de  Geografia  e  Estatística),  or  IBGE,  and  the  State  Data  Analysis  System  Foundation  (Fundação 
Sistema Estadual de Análise de Dados), or “SEADE”, among others.  We have no reason to believe that any of this information is inaccurate in any material respect.

References  to  urban  and  total  population  in  this  annual  report  are  estimated  based  on  a  research  prepared  by  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).

2

Our contracts and the Municipalities We Serve 

Throughout this document, we refer to the 364 municipalities we serve and to our 367 water contracts.  This difference results from the fact that we have two partial 
water contracts with the municipality of Mogi das Cruzes. These contracts are partial because pursuant to them we serve only two neighborhoods of this municipality and, 
as a result, do not include Mogi das Cruzes in the total of municipalities we serve. Most of our contracts with the municipalities we serve are concession agreements which 
have a term of 30 years.  On August 2, 2015, we signed a water contract with the municipality of Santa Isabel, which only became effective in January 2016.  Therefore, we 
do not include the water contract with Santa Isabel amongst the 364 municipalities we serviced in 2015. 

3

CAUTIONARY STATEMENTS ABOUT FORWARD-LOOKING STATEMENTS

This  annual  report  includes  forward-looking  statements,  mainly  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 factors:

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general economic, political, demographical and other conditions in Brazil and in other emerging market countries;

changes  in  applicable  laws  and  regulations,  as  well  as  the  enactment  of  new  laws  and  regulations,  including  those  relating  to  environmental,  tax  and 
employment matters in Brazil;

availability of the water supply, which may continue to be adversely affected by the current water crisis in São Paulo metropolitan region; 

the impact on our business of the water consumption reduction incentive program and other measures we took in 2014 and 2015 and any other measures we 
may need to take until the water levels of our reservoirs are normalized and sufficient to continuously serve the customers in the São Paulo metropolitan 
region;

the impact on our business of  lower water consumption practices adopted by our customers during the water crisis, which may remain in place even after 
the water levels of our reservoirs normalize; 

decisions by the São Paulo State Department of Water and Energy (Departamento de Águas e Energia Elétrica do Estado de São Paulo), or “DAEE”, and 
the National Water Agency (Agência Nacional de Águas), or “ANA”, limiting the volume of water that may be extracted from the Cantareira System, the 
main water system we use to serve the São Paulo metropolitan region, and the measures that we may be required to take to ensure the provision of water to 
our customers;

our exposure to probable increases in the frequency of extreme weather conditions, including droughts and intensive rain and other climatic events;

fluctuations in inflation, interest rates and exchange rates in Brazil;

the interests of our controlling shareholder;

our ability to collect amounts owed to us by our controlling shareholder and by municipalities;

our ability to continue to use certain reservoirs under current terms and conditions;

our capital expenditure program and other liquidity and capital resources requirements;

power shortages, rationing of energy supply or significant changes in energy tariffs;

the effects of the agreement for provision of water and sewage services in the city of São Paulo, which we executed with the State and the city of São Paulo;

the lack of formal agreements between our company and certain municipalities to which we provide water and sewage services, including cities comprising 
metropolitan regions, urban conurbations, and the fact that the State and municipal governments share competency regarding these services;

the municipalities’ ability to terminate our existing concession agreements prior to their expiration date and our ability to renew such agreements;

our ability to provide water and sewage services in additional municipalities and to maintain the right to provide the services for which we currently have 
contracts;

4

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



the size and growth of our customer base and its consumption habits;

our ability to comply with the requirements regarding water and sewage service levels included in our agreements with municipalities;

our level of debt and limitations on our ability to incur additional debt;

our ability to access financing with favorable terms in the future;

the costs we incur in complying with environmental laws and any penalties for failure to comply with these laws;

the outcome of our pending or future legal proceedings;

the delay or postponement in investment in our sewage system;

our management’s expectations and estimates relating to our future financial performance;

the regulations issued by ARSESP regarding several aspects of our business, including limitations on our ability to set and adjust our tariffs; 

the possibility to be subject to a regulatory agency, other than ARSESP; and

other risk factors as set forth under “Item 3.D. Risk Factors”.

The words “believe,” “may,” “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 any 
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 an indication of future performance and involve risks.

5

 ITEM 1.

IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS

Not applicable.

 ITEM 2.

OFFER STATISTICS AND EXPECTED TIMETABLE

 PART I 

Not applicable.

 ITEM 3.

KEY INFORMATION

A.

Selected Financial Data

The following selected financial data should be read in conjunction with our financial statements (including the notes thereto), “Presentation of Financial and Other 

Information” and “Item 5.  Operating and Financial Review and Prospects”.

The  selected  financial  data  as  of  December 31,  2015  and  2014  and  for  the  years  ended  December 31,  2015,  2014  and  2013  have  been  derived  from  our  audited 
financial statements, prepared in accordance with IFRS, and included in this annual report.  The selected financial data as of December 31, 2013, 2012 and 2011 and for the 
years ended December 31, 2012 and 2011 have been derived from our audited financial statements, prepared in accordance with IFRS, which is not included in this annual 
report.  

We have included information with respect to the dividends and/or interest attributable to shareholders’ equity paid to holders of our common shares since January 1, 
2011  in  reais  and  in  U.S.  dollars  translated  from  reais  at  the  commercial  market  selling  rate  in  effect  as  of  the  payment  date  under  the  caption  “Item 8.A.   Financial 
Statements and Other Financial Information—Dividends and Dividend Policy—Payment of Dividends”.  

The following tables present our selected financial data as of and for each of the periods indicated:

IFRS Summary Financial Data

Statement of operations data:
Net operating revenues
Cost of sales and services 
Gross profit
Selling expenses
Administrative expenses
Operating profit
Financial income (expenses), net
Net income
Earnings per share – basic and diluted(2)
Earnings per ADS – basic and diluted(2)
Dividends and interest on shareholders’ equity per share(2) 
Dividends and interest on shareholders’ equity per ADS(2)
Weighted average number of common shares outstanding(2)

(3)

2015

US$

2015

R$

2014

R$

(4)

2013

R$

(4)

2012

R$

(4)

2011

R$

For the year ended December 31,

(in millions, except per share and per ADS(1) data)

2,999.3
(2,115.6)
883.7
(153.2)
11.5
779.6
(629.1)
137.3
0.20
0.20
0.05
0.05
683,509,869

11,711.6
(8,260.8)
3,450.8
(598.1)
45.0
3,044.0
(2,456.5)
536.3
0.78
0.78
0.19
0.19
683,509,869

6

11,213.2
(7,635.6)
3,577.6
(736.6)
(924.4)
1,910.7
(635.9)
903.0
1.32
1.32
0.32
0.32
683,509,869

11,315.6
(6,816.3)
4,499.3
(637.1)
(729.1)
3,138.8
(483.2)
1,923.6
2.81
2.81
0.67
0.67
683,509,869

10,737.6
(6,449.9)
4,287.7
(697.3)
(717.4)
2,843.3
(295.7)
1,911.9
2.80
2.80
0.66
0.66
683,509,869

9,927.4
(6,018.7)
3,908.7
(619.3)
(683.6)
2,512.0
(633.0)
1,380.9
2.02
2.02
0.43
0.43
683,509,869

(1) ADS - American Depositary Share.
(2) On April 22, 2013, our shareholders approved a stock split, following which each common share represented three new common shares.  Therefore, per share information in the selected financial data has 

been revised to give effect to the stock split retrospective to all periods presented. 

(3) Translated at the commercial selling rate at closing for the purchase of U.S. dollars, as reported by the Central Bank, as of December 31, 2015 of R$3.9048 to US$1.00.
(4) Data for 2012 and 2011 have been restated in application of IAS 19 – Employee Benefits (as revised in 2011) and IFRS 11 – Joint Arrangements, as described in our audited financial statements for the 
year ended December 31, 2013.  With respect to IAS 19 – Employee Benefits, the principal adjustment is the change in the accounting record method of actuarial gains and losses, such that accumulated 
differences between actuarial estimates and actual obligations are recognized in Other Comprehensive Income when they occur. 

Balance Sheet Data

Property, plant and equipment
Intangible assets
Total assets
Current portion of long-term loans and financing
Long-term loans and financing
Interest on shareholders’ equity payable
Total liabilities
Equity
Capital stock

Other financial information:
Cash generated from operating activities
Cash used in investing activities
Cash provided by (used in) financing activities 
Purchases of intangible assets and property, plant and equipment as presented in 

our statement of cash flow

As of December 31,

(2)

2015

US$

2015

R$

2014

R$

2013

R$

(3)

2012

R$

(3)

2011

R$

(in millions, except per share and per ADS(1) data)

83.3
7,302.2
8,632.1
390.9
2,969.5
32.6
5,119.3
3,512.8
2,561.0

676.4
(629.9)
(68.0)

(628.0)

325.1
28,513.6
33,706.6
1,526.3
11,595.3
127.4
19,990.0
13,716.6
10,000.0

2,641.4
(2,459.5)
(265.7)

(2,452.1)

304.8
25,979.5
30,355.4
1,207.1
9,578.6
214.5
17,051.0
13,304.4
10,000.0

2,480.3
(2,757.7)
218.5

(2,748.3)

199.5
23,846.2
28,274.3
640.9
8,809.1
457.0
15,343.5
12,930.8
6,203.7

2,777.2
(2,281.5)
(629.7)

(2,335.8)

196.7
21,967.5
26,476.1
1,342.6
7,532.7
414.4
15,219.4
11,256.8
6,203.7

2,343.2
(1,996.7)
(572.7)

(2,026.1)

181.6
20,125.7
24,983.2
1,629.2
6,794.1
247.5
14,438.3
10,544.9
6,203.7

2,698.6
(1,883.2)
(661.3)

(2,068.8)

(1) ADS - American Depositary Share.
(2) Translated at the commercial selling rate at closing for the purchase of U.S. dollars, as reported by the Central Bank, as of December 31, 2015 of R$3.9048 to US$1.00.
(3) Data for 2012 and 2011 have been restated in application of IAS 19 – Employee Benefits (as revised in 2011) and IFRS 11 – Joint Arrangements, as described in our audited financial statements for the 
year ended December 31, 2013.  With respect to IAS 19 – Employee Benefits, the principal adjustment is the change in the accounting record method of actuarial gains and losses, such that accumulated 
differences between actuarial estimates and actual obligations are recognized in Other Comprehensive Income when they occur. 

Operating Data

Number of water connections (in thousands)
Number of sewage connections (in thousands)
Percentage of population with water connections (in percentages) 
Percentage of population with sewer connections (in percentages)
Percentage of treated sewer(1) (in percentages)
Volume of water billed during period (in millions of cubic meters) 
Water Billed Loss Index during period (average) (in percentages)(2)
Water Metered Loss Index during period (average) (in percentages)(3)
Water loss per connection per day (average)(4)
Number of employees  

2015

As of and for the year ended December 31,
2013

2014

2012

2011

8,420
6,861
99
86
78
1,914
16.4
28.5
258
14,223

7

8,210
6,660
99
85
77 
2,069
21.3
29.8
319
14,753

7,888
6,340
99
84
78
2,149
24.4
31.2
372
15,015

7,679
6,128
99
83
77
2,094
25.7
32.1
392
15,019

7,481
5,921
99
82
76
2,045
25.6
32.0
395
14,896

(1) Treated sewage as a percentage of collected sewage.
(2)

Includes both physical and non-physical water loss.  Water Billed Loss Index represents the quotient of (i) the difference between (a) the total volume of water produced plus (b) the total volume of water 
invoiced  minus  (c) the  volume  of  water  excluded  from  our  calculation  of  water  loss,  divided  by  (ii) the  total  volume  of  water  produced.   For  more  information,  see  “Item 4.B.  Business 
Overview—Description of Our Activities—Water Operations—Water Loss”.

        We exclude the following from our calculation of water loss:  (i) water discharged for periodic maintenance of water  transmission lines and water storage tanks; (ii) water supplied for municipal uses such 

(3)

as firefighting; (iii) water we consume in our facilities; and (iv) estimated water loss related to the supply of water to shantytowns (favelas). 
Includes both physical and non-physical water loss.  The Water Metered Loss Index represents the quotient of (i) the difference between (a) the total volume of water produced minus (b) the total volume 
of water measured minus (c) the volume of water that we exclude from our calculation of water loss, divided by (ii) the total volume of water produced.  For more information, see “Item 4.B. Business 
Overview—Description of Our Activities—Water Operations—Water Loss”.

         We exclude the following from our calculation of water loss:  (i) water discharged for periodic maintenance of water  transmission lines and water storage tanks; (ii) water supplied for municipal uses such 

as firefighting; (iii) water we consume in our facilities; and (iv) estimated water loss related to the supply of water to shantytowns (favelas). 

(4) Measured in liters/connection per day, this amount is calculated by dividing (i) the average annual water loss by (ii) the average number of active water connections multiplied by the number of days of 

the year.  This calculation method is based on worldwide market practice within the sector.  See “Item 4.B. Business Overview—Description of Our Activities—Water Operations—Water Loss”.

         We exclude the following from our calculation of water loss:  (i) water discharged for periodic maintenance of water transmission lines and water storage tanks; (ii) water supplied for municipal uses such 

as firefighting; (iii) water we consume in our facilities; and (iv) estimated water loss related to the supply of water to shantytowns (favelas).

Exchange Rates

In the past, the Brazilian National Monetary Council (Conselho Monetário Nacional), or the “CMN”, has introduced changes to the Brazilian foreign exchange regime, 
such  as  unifying  the  Commercial  and  Floating Markets  and easing  the  rules  governing  the  ability  of  Brazilian  residents to  acquire  foreign  currency, among  others.   On 
March 24, 2010, the CMN and the Central Bank approved Resolution No. 3,844/2010, as amended, which led to a series of measures to consolidate and simplify Brazilian 
foreign exchange market regulations.

The Brazilian foreign exchange system allows any person or legal entity to purchase or sell foreign currency and make international transfers of reais, regardless of the 

amount, subject to certain regulatory procedures.

The Brazilian currency has experienced frequent and substantial variations in relation to the U.S. dollar and other foreign currencies in recent decades.  Between 2003 
and  mid-2008,  the  real  appreciated  significantly  against  the  U.S. dollar  with  the  exchange  rate  reaching  R$1.634  in  August 2008.   Primarily  as  a  result  of  the  global 
financial crisis, the real depreciated 32.0% against the U.S. dollar during 2008 and closed the year at R$2.337 per US$1.00.  The real strengthened again by 25.5% in 2009 
and 4.3% in 2010, but depreciated against the U.S. dollar by 12.6% in 2011, 8.94% in 2012, 14.63% in 2013, 13.39% in 2014 and 47.01% in 2015.  On December 31, 2015, 
2014, and 2013, the real/U.S. dollar exchange rate was R$3.9048, R$2.6562 and R$2.3426 per US$1.00, respectively. 

Since 1999, following Brazil’s implementation of a floating rate regime, the Central Bank has not directly intervened in the exchange market.  However, the Central 
Bank, using financial instruments at its disposal, may buy and sell foreign currency in the market in order to influence the exchange rate and decrease volatility with respect 
to the Brazilian real.  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 through a currency band system or other procedure.  The real may fluctuate against the U.S. dollar substantially in the future.  For further information on this risk, see 
“Item 3.D. Risk Factors—Risks Relating to Brazil—Exchange rate instability may adversely affect us and the market price of our common shares or ADSs”.

8

Exchange  rate  fluctuations  will  affect  the  U.S. dollar  equivalent  of  the  real  price  of  our  common  shares  on  the  São  Paulo  Stock  Exchange  (BM&FBOVESPA 
S.A. - Bolsa de Valores, Mercadorias e Futuros), or the “BM&FBOVESPA”, as well as the U.S. dollar equivalent of any distributions we make in reais with respect to our 
common shares.

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

R$ per US$1.00

(1)

Average
1.6746
1.9550
2.1605
2.3547
3.3387

R$ per US$1.00

Average
3.8801
3.7765
3.8711
4.0524
3.9734
3.7039
3.5658

(1)

Average
0.0211
0.0245
0.0221
0.0222
0.0276

Average
0.0323
0.0308
0.0318
0.0343
0.0347
0.0328
0.0326

R$ per ¥1.00

R$ per ¥1.00

High
1.9016
2.1121
2.4457
2.7403
4.1949

High
4.0010
3.8506
3.9831
4.1558
4.0492
3.9913
3.6921

High
0.0249
0.0263
0.0248
0.0239
0.0351

High
0.0335
0.0315
0.0329
0.0355
0.0359
0.0351
0.0342

Low
1.5345
1.7024
1.9528
2.1974
2.5754

Low
3.7386
3.7010
3.7476
3.9863
3.8653
3.5589
3.4508

Low
0.0186
0.0211
0.0196
0.0212
0.0219

Low
0.0311
0.0301
0.0304
0.0333
0.0331
0.0317
0.0317

Year ended December 31,
2011
2012
2013
2014
2015

Month ended
October 31, 2015
November 30, 2015
December 31, 2015
January 31, 2016
February 28, 2016
March 31, 2016
April 30, 2016

Year end
1.8758
2.0435
2.3426
2.6562
3.9048

Period end
3.8589
3.8506
3.9048
4.0428
3.9578
3.5589
3.4508

Source:  Central Bank
(1)   Average of the exchange rates on the last day of each month.

The following tables set forth the selling rate, expressed in reais per Japanese Yen (R$/¥1.00):  

Year ended December 31,

2011
2012
2013
2014
2015

Month ended
October 31, 2015
November 30, 2015
December 31, 2015
January 31, 2016
February 28, 2016
March 31, 2016
April 30, 2016

Source:  Central Bank
(1)   Average of the exchange rates on the last day of each period.

B. Capitalization and Indebtedness

Not applicable.

C. Reasons for the Offer and Use of Proceeds

Not applicable.

Year end
0.0243
0.0237
0.0223
0.0222
0.0324

Period end
0.0320
0.0313
0.0324
0.0333
0.0348
0.0317
0.0323

9

D. Risk Factors

Risks Relating to Brazil

The Brazilian government has exercised, and continues to exercise, significant influence over the Brazilian economy.  This influence, as well as Brazilian political and 
economic conditions, could adversely affect us and the market price of our common 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, changes in interest rates, tax policies, price and 
tariff controls, currency devaluation or appreciation, capital controls and limits on imports.  Our business, financial condition and results of operations, as well as the market 
price  of  our  common  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 agreements;

interest rates;

exchange rates and exchange controls and restrictions on remittances abroad;

currency fluctuations;

inflation;

liquidity of the Brazilian capital and lending markets;

tax and regulatory policies and laws;

economic and social instability; and

other political, diplomatic, social and economic developments in or affecting Brazil.

For example, the Brazilian government may change its tax policy, such as by changing tax rates or imposing temporary taxes.  If overall taxes are increased, we may be 

unable to immediately recover the difference from our consumers, which may have an adverse effect on our financial condition and results of operations. 

Uncertainty over whether the Brazilian government will change policies or regulations affecting these or other factors may contribute to economic uncertainty in Brazil 
and  to  heightened  volatility  in  Brazilian  securities  markets  and  securities  issued  abroad  by  Brazilian  issuers.   On  September  9,  2015,  Brazil  was  downgraded  below 
investment  grade  by  Standard  &  Poor’s  Financial  Services  LLC,  and  received  a  further  downgrade  by  the  same  rating  agency  on  February  17,  2016.   In  addition,  on 
December 16, 2015, Brazil was downgraded below investment grade by Fitch Ratings Inc. and in February 24, 2016 by Moody's Investors Service, Inc..  We cannot assure 
you that the Brazilian government will continue with its current economic policies, or that these and other developments in Brazil’s economy and government policies will 
not, directly or indirectly, adversely affect our business and results of operations. 

Political conditions may have an adverse impact on the Brazilian economy and on our business.

Current political conditions in Brazil may affect the confidence of investors and the public in general as well as the development of the economy.  Uncertainty with 
regard to matters such as the presidential administration’s future policies and appointments to influential governmental positions and ongoing investigations into allegations 
of  corruption  in  state-controlled  enterprises  may  also  affect  the  confidence  of  investors  and  the  general  public.  It  may  also  have  an  adverse  impact  on  the  Brazilian 
economy, our business, financial condition, results of operations and the market price of our common shares and ADSs.

10

Currently, Brazilian markets are experiencing heightened volatility due to the uncertainties derived from the ongoing Lava Jato investigation, being conducted by the 
Office of the Brazilian Federal Prosecutor, and its impact on the Brazilian economy and political environment.  Certain of these companies are also facing investigations by 
the  Brazilian  Securities  Commission  (Comissão  de  Valores  Mobiliários),  or  CVM,  and  the  U.S.  Securities  and  Exchange  Commission,  or  the  SEC.   Members  of  the 
Brazilian federal government and of the legislative branch, as well as senior officers of large state-owned companies have faced allegations of political corruption, since 
they have allegedly accepted bribes by means of kickbacks on contracts granted by the government to several infrastructure, oil and gas and construction companies.  The 
profits  of  these  kickbacks  allegedly  financed  the  political  campaigns  of  political  parties  of  the  current  federal  government  coalition  that  were  unaccounted  for  or  not 
publicly disclosed, as well as served to personal enrichment of the recipients of the bribery scheme.

The potential outcome of these investigations is uncertain, but they have already an adverse impact on the image and reputation of the implicated companies, and on 
the general market perception of the Brazilian economy.  We cannot predict whether such allegations will lead to further political and economic instability or whether new 
allegations  against  government  officials  will  arise  in  the  future.   In  addition,  we  cannot  predict  the  outcome  of  any  such  allegations  nor  their  effect  on  the  Brazilian 
economy.

The development of such unethical conduct cases could adversely affect our business, financial condition and results of operations.

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

Inflation and the Brazilian government’s measures to combat it have had and may in the future have significant effects on the Brazilian economy and our business.  
Tight monetary policies with high interest rates may restrict Brazil’s growth, the availability of credit and our cost of funding.  Conversely, other Brazilian governmental 
actions, including lowering interest rates, intervention in the foreign exchange market and actions to adjust or fix the value of the real, may trigger increases in inflation.  
The  Special  Clearing  and  Settlement  System  (Sistema  Especial  de  Liquidação  e  Custódia),  or  “SELIC”,  the  official  overnight  interest  rate  in  Brazil,  equaled  14.15%, 
11.65% and 9.90% at the end of 2015, 2014 and 2013, respectively, in line with the target rate set by the Brazilian Committee on Monetary Policy (Comitê de Política 
Monetária).  

The Brazilian annual inflation rates, as measured by the Amplified Consumer Price Index (Índice Nacional de Preços ao Consumidor Amplo), or “IPCA”, the Brazilian 
annual inflation rates were 10,67%, 6.41% and 5.91%, during 2015, 2014 and 2013, respectively.  If Brazil experiences increases in inflation, our costs and expenses may 
rise,  we  may  be  unable  to  increase  our  tariffs  at  the  same  rate  to  counter  the  effects  of  inflation,  and  our  overall  financial  performance  may  be  adversely  affected.   In 
addition, a substantial increase in inflation may weaken investors’ confidence in Brazil, causing a decrease in the market price of our common shares or ADSs.  

The devaluation of the real to foreign currencies may adversely affect us and the market price of our common shares or ADSs.

The Brazilian currency experienced frequent and substantial devaluations in relation to the U.S. dollar and other foreign currencies during the decades leading up to the 
mid-1990s.  Throughout this period, the Brazilian government implemented various economic plans and exchange rate policies, including sudden devaluations, periodic 
mini-devaluations (during which the frequency of adjustments ranged from daily to monthly), floating exchange rate systems, exchange controls and dual exchange rate 
markets.  From time to time since that period, there have continued to be significant fluctuations in the exchange rate between the Brazilian real and the U.S. dollar and 
other currencies.  For example, the real appreciated 13.8%, 9.5% and 20.7% against the U.S. dollar in 2005, 2006 and 2007, respectively.  In 2008, primarily as a result of 
the global financial crisis, the real depreciated 32.0% against the U.S. dollar and closed the year at R$2.337 per US$1.00.  The real strengthened again by 25.5% in 2009 
and 4.3% in 2010, but depreciated against the U.S. dollar by 12.6% in 2011, 8.94% in 2012, 14.63% in 2013, 13.39% in 2014 and 47.01% in 2015.  On December 31, 2015, 
2014  and  2013,  the  real/U.S. dollar  exchange  rate  was  R$3.9048,  R$2.6562  and  R$2.343  per  US$1.00,  respectively.   There  can  be  no  assurance  that  the  real  will  not 
depreciate further against the U.S. dollar.  As of April 30, 2016, the commercial selling rate as reported by the Central Bank was R$3.4508 per US$1.00.

11

Depreciation  of  the  real  against  the  U.S. dollar  could  create  inflationary  pressures  in  Brazil  and  cause  increases  in  interest  rates,  which  could  negatively  affect  the 
growth of  the Brazilian economy  as  a whole and harm our financial condition and results of operations, curtail our  access to financial markets and prompt  government 
intervention, including recessionary governmental policies.  Depreciation of the real against the U.S. dollar could also lead to decreased consumer spending, deflationary 
pressures and reduced economic growth.

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 because our tariff revenue and other sources of income are denominated solely in reais.  In addition, because we have debt denominated in 
foreign currencies, any significant devaluation of the real will increase our financial expenses as a result of foreign exchange losses that we must record.  We had a total 
foreign currency denominated debt of R$6,617.8 million as of December 31, 2015 and we anticipate that we may incur additional amounts of foreign currency denominated 
debt in the future.  In 2015, our results of operations were negatively affected by the 47.0% depreciation of the real against the U.S. dollar, and a depreciation of the real 
against the yen by 46.0% which led to a R$1,992.0 million negative impact on our foreign exchange result, net.  We do not currently have any derivative 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 
common shares or ADSs.   For more information, see Note 5(a) of our 2015 financial statements.

For further information on exchange rate instability impacts, see “Item 5.B. Liquidity and Capital Resources—Capital Sources—Indebtedness Financing—Financial 

Covenants”.

Developments and the perception of risk in other countries, especially in the United States and in emerging market countries, may adversely affect the market price of 
Brazilian securities, including our common shares and ADSs.

The market price of securities of Brazilian companies is affected to varying degrees by economic and market conditions in other countries, including the United States 
and other Latin American and emerging market countries.  Although economic conditions in these 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 price of securities of Brazilian issuers.  Crises in other emerging 
market countries or economic policies of other countries may diminish investor interest in securities of Brazilian issuers, including ours.  This could adversely affect the 
market  price  of  our  common  shares  or  ADSs,  and  could  also  make  it  more  difficult  for  us  to  access  the  capital  markets  and  finance  our  operations  in  the  future,  on 
acceptable terms or at all.

The global financial crisis has caused significant consequences, including in Brazil, such as stock and credit market volatility, unavailability of credit, higher interest 
rates, a general slowdown of the world economy, volatile exchange rates, and inflationary pressure, among others, which have and may continue to, directly or indirectly, 
materially and adversely affect us and the price of securities issued by Brazilian companies, including our common shares and ADSs.  

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 the interests of non-controlling, including holders of ADSs. 

As it owns the majority of our common shares, the State is able to determine our operating policies and strategy, control the election of a majority of the members of 
our board of directors and appoint our senior management.  As of April 30, 2016, the State owned 50.3% of our outstanding common shares.  Both through its control of 
our  board  of  directors  as  well  as  by  enacting  State  decrees,  the  State  has  in  the  past  directed  our  company  to  engage  in  business  activities  and  make  expenditures  that 
promoted political, economic or social goals, but that did not necessarily enhance our business and results of operations.  The State may direct our company to act in this 
manner  again  in  the  future.   These  decisions  by  the State  may  not be  in the  interests  of  our non-controlling,  including holders  of  ADSs.   See  “Item 5.A.  Operating  and 
Financial Review and Prospects—Certain Transactions with Controlling Shareholder”.

12

Following  the  elections  for  State  governor  in  2014,  the  re-elected  governor  appointed  Mr. Jerson  Kelman  as  our  Chief  Executive  Officer  in  January  2015,  and 
Mr. Benedito  Pinto  Ferreira  Braga  Junior,  the  Secretary  of  State  for  the  State  Secretariat  for  Sanitation  and  Water  Resources  (Secretaria  de  Saneamento  e  Recursos 
Hídricos do Estado de São Paulo), was elected our Chairman for the current board of directors’ term of two years, ending in April 2016. Mr. Benedito Pinto Ferreira Braga 
Junior’s term was renewed in our annual general shareholder’s meeting held on April 29, 2016 for another two years, ending in April 2018. Future changes in policy by 
State  government  may  cause  changes  in  all  or  some  of  the  members  of  our  management,  which  may  have  a  material  adverse  effect  on  our  business  and  results  of 
operations.

The State and some State entities owe us substantial unpaid debts.  We cannot assure you as to when or whether the State will pay us.

Historically,  the  State  and  some State  entities have  delayed payment  of  substantial  amounts owed  to us related  to water  and sewage services.   As  of  December 31, 
2015,  the  State  owed  us  R$66.3  million  for  water  and  sewage  services.   Additionally,  the  State  also  owes  us  substantial  amounts  related  to  reimbursements  of 
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.   

With respect to payment of pensions on behalf of the State, we had a contested credit amount of R$855.1 million as of December 31, 2015.  We do not record this 
contested amount as a reimbursement credit for actuarial liability due to the uncertainty of payment by the State.  In addition, as of December 31, 2015, we had a provision 
for an actuarial liability in the amount of R$2,166.9 million with respect to future supplemental pension payments for which the State does not accept responsibility.  On 
March 18, 2015, we, the State and DAEE, with the intervention of the Department of Sanitation and Water Resources, executed a term of agreement, in the amount of 
R$1,012.3 million, of which R$696.3 million refers to the principal amount and R$316.0 million refers to the monetary adjustment of the principal through February 2015. 
For  a  detailed  discussion  of  this  agreement,  see  “Item  7.B.  Related  Party  Transactions—Agreements  with  the  State  of  São  Paulo”  and  Note  10  of  our  2015  financial 
statements.  

We have entered into agreements with the State to settle the overdue amounts that relate to water and sewage services.  For a detailed discussion of these agreements, 

see “Item 7.B. Related Party Transactions, Agreements with the State of São Paulo” and Note 10 of our 2015 financial statements.  

Although the State has complied with agreements negotiated with us in past years, we cannot assure you when or if the State will pay the contested credit amount, 
which is still under discussion, and the remaining overdue amounts it owes us. The amounts owed to us by the State for water and sewage services and reimbursements for 
pensions paid may increase in the future.

In addition, certain municipalities and other government entities also owe us payments.  See “Risks Relating to Our Business—We may face difficulties in collecting 

overdue amounts owed to us by municipalities to which we provide water on a wholesale basis and municipal government entities”.

EMAE, a State-controlled company that has a concession to produce energy in the Guarapiranga and Billings reservoirs is seeking damages from us for the water we 
draw from these reservoirs. 

Empresa Metropolitana de Águas e Energia S.A., or EMAE, a company also controlled by the State of São Paulo that has a concession to produce hydroelectric energy 
using water in the Guarapiranga and Billings reservoirs, is seeking compensation from us for the water we draw from these reservoirs.  EMAE has commenced various 
court and arbitration proceedings, alleging that our water use reduces their ability to generate and sell electricity.  As stated in an Announcement to the Market that we 
issued on April 10, 2014, we are negotiating with EMAE regarding a potential settlement of this water use dispute, although no agreement has yet been finalized.  

In addition,  the  State  of São  Paulo,  which  is controlling shareholder  of  both  EMAE  and  our company, may  take  action  to  resolve  the dispute  in  a  way that  has  an 
adverse effect on our business.  On April 11, 2016 we were named in legal proceedings commenced by minority shareholders of EMAE against the State of São Paulo.  The 
plaintiffs in these proceedings are seeking an order to require the State to stop us from drawing water from the reservoirs without paying compensation to EMAE, and to 
allow  EMAE  to  pump  water  from  the  reservoirs  for  its  hydroelectric  facility.   The  plaintiffs  in  these  proceedings  allege  that  the  State,  in  its  capacity  as  controlling 
shareholder of EMAE, has acted unduly to EMAE’s detriment and in favor of our company.

If  we  were  no  longer  able  to  draw  water  from  these  reservoirs,  we  would  have  to  transport  water  from  locations  farther  away,  which  would  increase  our  water 
transportation costs and may affect our ability to provide adequate service in the region.  In addition, if we are required to pay compensation to EMAE, our cash position 
and overall liquidity may be adversely affected.

13

We may be required to pay substantial charges for the use of reservoirs that are not our property.

We  use  the  Billings  and  Guarapiranga  reservoirs  in  order  to  provide  water  services.   We  are  entitled  to  withdraw  water  from  these  reservoirs  under  a  grant  from 
DAEE.  We are not currently charged for the use of these reservoirs and 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 one were imposed.  

We may also be required to pay additional maintenance and operational costs to utilize these reservoirs.  If we were required to pay substantial charges or additional 

maintenance or operational costs for our use of these reservoirs, we could be materially and adversely affected. 

Risks Relating to Our Business 

The measures we took to mitigate the effects of the drought resulted in a significant decrease in the volume of water billed and revenues from services we provide, 
which had a material adverse effect on our company and could continue to do so if the drought escalates in severity.

We  experience  decreases  in  our  water  availability  from  time  to  time  due  to  droughts.   The  southeastern  region  of  Brazil,  particularly  the  southern  region  of  Minas 
Gerais State and the Piracicaba, Capivari and Jundiaí river basin, or “PCJ River Basin” (from which we extract most of the water used in the Cantareira System), and the 
northern area of the São Paulo metropolitan region have experienced below average rainfall since 2012.  In the October 2013 – March 2014 rainy season, rain levels and 
water inflow into the reservoirs reached the lowest levels in 84 years of recorded rainfall in the region, a scenario that continued in the October 2014 – March 2015 rainy 
season.  During the October 2015 – March 2016 rainy season, the level of rainfall in the region returned to the normal levels expected for the period.   Improved rainfall in 
the rainy season that began in October 2015, the collaborative efforts between us and the population we serve and emergency construction conducted by us throughout 2014 
and 2015 in order to reduce the impact of the water crisis, resulted in a partial restoration of the water levels of the Cantareira system.

The depletion of water storage is worst in the Cantareira System, the largest system of the São Paulo metropolitan region.  As a result of the drought and low water 
volume in the Cantareira System, DAEE and ANA, since March 2014, have continuously regulated the volume of water we are permitted to extract from this system.  The 
DAEE and ANA determine this amount based on levels of rainfall, water inflow, level of water in our reservoirs and our requests to extract water based on this information, 
and inform us of the amount we are permitted to extract via monthly notices.  As of February 2016, as a result of the return of average rainfall levels to the region, we 
received authorization to extract 23 cubic meters per second, or m³/s, from the Cantareira System, an increase compared to the 13.5 m³/s we were authorized to extract for 
the majority of 2015.  This figure remains significantly below the water level we were allowed to extract in the period prior to February 2014, when we were allowed to 
extract up to a total of 33 m³/s. 

In order to balance supply and demand despite the restricted water availability, we have adopted and will continue adopting a series of measures, including:  (i) using 
treated water from other production systems to serve consumers originally supplied by the Cantareira system; (ii) to offer discounts (bonus) to consumers that use below 
average amounts of water, compared to average consumption; (iii) reducing pressure in the water distribution lines in order to decrease leakage; (iv) adjusting the volume of 
treated water sold to municipalities that operate their own distribution network; and (v) using pumps in order to extract water located below the intakes of the Cantareira 
system, from the so-called “technical reserve”, which has never before been used to serve the population.  See “Item 4.B. Business Overview—The Current Water Crisis”.

Even with the return of normal rainfall levels throughout the October 2015 – March 2016 rainy season, the need to recover the volume of water stored in the reservoirs 
of  the  Cantareira  system  will  persist  throughout  the  next  rainy  season.   The  Cantareira  system’s  maximum  storage  capacity,  including  the  technical  reserve,  is 1,269.5 
million m³. Excluding the technical reserve, which is 287,5 million m³, the Cantareira system's maximum storage capacity is 982.0 million m³. The volume of water in the 
Cantareira system recovered throughout the October 2015 – March 2016 rainy season and was 641.9 million m³ as of March 2016, which represents 50.6% of its maximum 
storage capacity including the technical reserve.

14

We cannot guarantee that we shall be authorized to extract the same volume of water from this system that we extracted prior to the drought to serve the needs of the 
population we service.  In December 2015, 5.3 million inhabitants were serviced by this system, compared to 8.9 million in February 2014.  For more information about the 
water crisis, see “Item 4.B. Business Overview—The Current Water Crisis”.

The drought has prompted a continuous reduction in the volume of water billed and thus a reduction in revenue.  In 2014, our water volume billed decreased 3.1% 
and our gross operational revenue fell by 6.7% compared to 2013.  In 2015, our water volume billed decreased 8.0% and our gross operational revenue increased slightly by 
0.5% compared to 2014.  Therefore, there was and may continue to be a negative impact on our financial ratios linked to revenue, such as the debt to EBITDA ratio.  We 
are required to maintain certain financial ratios at specified levels pursuant to restrictions and covenants of our existing debt agreements and failure to maintain these ratios 
may lead to a default under such agreements.  Breach of any such covenant may result in a default under certain of our debt agreements and, due to customary cross-default 
provisions, could permit some of our creditors to accelerate our indebtedness unless we are able to renegotiate the terms of these agreements or receive waivers from the 
affected  creditors.   If  such  events  were  to  occur,  our  financial  condition  would  be  adversely  affected.   See  “Item  5.B.  Liquidity  and  Capital  Resources—Indebtedness 
Financing—Financial Covenants”.

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

Our industry is affected by the following risks relating to the provision of water and sewage services:

 We depend on a water right issued by DAEE – ANA in order to extract water from the Cantareira System.  The water right was renewed in 2004 and would 
have expired in August 2014.  However, due to current climate conditions, particularly the severe drought, the water right was extended until October 31, 
2015 and later extended again until May 2017.  The extraction of water throughout 2014 and 2015 was executed according to the specific rules established to 
combat the water crisis.  The terms of this water right will define the volume of water that we will be authorized to extract from the Cantareira System to 
provide  to  the  São  Paulo  metropolitan  region.   The  drought  that  occurred  in  2014  and  for  most  of  2015  may  influence  the  decision  of  ANA  and  DAEE 
regarding the volume of water that we will be authorized to extract pursuant to the renewal of the water right in 2017.  The volume of water that we have 
been  authorized  to  extract  from  the  Cantareira  System  (which  includes  the  PCJ  River  Basin  and  Juquerí  River  Basin)  has  been  communicated  to  us  via 
monthly  notices  according  to  the  behavior  of  rainfall,  water  inflow,  level  of  water  in  our  reservoirs  and our  requests to  extract  water  based  on  this 
information.

 We are dependent upon energy supplies to conduct our business.  Any shortages or rationing of energy may prevent us from providing water and sewage 
services and may also cause material damage to our water and sewage systems when we resume operations.  In 2016, there is no forecast of any shortages or 
rationing of energy and we estimate an increase of about 15% to 20% in energy expenses compared to 2015.  In March 2015, we filed with ARSESP an 
extraordinary revision request based on the decline in the volume of water due to the water crisis and based on the unexpected increase in electricity tariffs.  
Our request was approved in May 2015.  However, we may not be able to pass on any significant increases in energy tariffs to our customers in the future.  
See “Item 4.B. Business Overview—Energy Consumption”. 

 We are exposed to various weather-related risks, since our financial performance is closely linked to climate patterns.  The possible increase in the frequency 
of extreme weather conditions in the future may adversely affect the water available for abstraction, treatment, and supply.  Droughts could adversely affect 
the water supply systems, resulting in a decrease in the volume of water distributed and billed as well as in the revenue derived from water supply services.  
An increase in heavy rainfall could impact the regular operation of water sources, including abstraction of water from our dams due to increased soil erosion, 
silting,  and  runoff  of  pollutants  that  affect  the  aquatic  ecosystems.   See  “Item 4.B.  Business  Overview——Environmental  Matters—Climate  Change 
Regulation”. 

15









The increasing degradation of watershed areas may affect the quantity and quality of water available to meet demand from our customers.  See “Item 4.A. 
History and Development of the Company—Capital Expenditure Program” and “—Main Projects of Our Capital Expenditure Program”.

In addition to the risks discussed under “—The terms of our agreement to provide water and sewage services in the city of São Paulo could have a material 
adverse effect on us,” we may not be able to increase our tariffs on a timely basis, or at all, in order to pass on increases in inflation or operating expenses, 
including  taxes,  to  our  customers.   These  constraints  may  have  an  adverse  effect  on  our  ability  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”.

The state and federal government agencies that manage water resources could impose substantial charges for the abstraction of water from bodies of water 
and  the  discharge  of  sewage.   We  may  not  be  able  to  pass  these  charges  on  to  our  customers.   See  “Item 4.B.  Business  Overview—Government 
Regulation—Water Usage”.

Our water pipes are susceptible to the degradation caused by factors such as age, intense traffic, population density and industrial development, which may 
provoke accidents in the networks and affect the regular provision of our services, impacting society and the environment. See "Item 4.B Business Overview-
Description of Our Activies-Water Distribution" and "Item 4.B Business Overview-Descripitions of Our Activities-Sewage Operations-Sewage System". 

Any of the above may have a material adverse effect on us.

Current regulatory uncertainty, especially with regard to implementation and interpretation of the Brazilian Basic Sanitation Law, may have an adverse effect on our 
business. 

Our operations in the state of São Paulo occur both in locations where the planning, monitoring and tariff regulation of basic sanitation services are responsibilities of 
the municipalities and in locations where such responsibilities are shared between the State and municipalities. The Basic Sanitation Law No. 11,445/2007 went into effect 
in  early  2007,  and  although  Federal  Decree  No. 7,217/2010  (as  modified  by  Federal  Decree  No. 8,211/2014)  implemented  a  series  of  new  principles  under  the  Basic 
Sanitation Law in 2010, the full implementation of a number of its provisions remains subject to regulations that the federal government has not yet published.  Moreover, 
the Basic Sanitation Law requires that the federal government, states and municipalities establish independent regulators who monitor basic sanitation services and regulate 
tariffs.   In  compliance  with  this  law,  the  state  of  São  Paulo  established  ARSESP  in  2007.   Currently,  our  regional  and  local  operations,  including  tariff  regulation,  are 
monitored and  regulated  by  ARSESP, and  the  remainder  of  our  operations  is  in  the  process  of  negotiating  new  contractual  bases.   Regulatory  agencies  determine  tariff 
increases  for  our  water  and  sewage  services,  on  which  our  results  of  operations  and  financial  condition  are  highly  dependent.   As  a  result,  we  cannot  anticipate  all  the 
effects that the Basic Sanitation Law and the decree will have on our business and operations, if any.

In 2009, ARSESP enacted rules regarding the following:  (i) general terms and conditions for water and sewage services; (ii) procedures for communication regarding 
any  failure  in  our  services;  (iii)  penalties  for  deficiencies  in  the  provision  of  basic  sanitation  services;  and  (iv)  procedures  for  confidential  treatment  of  our  customers’ 
private information.  The implementation of these and other more recent rules will particularly impact our commercial and operations processes, and may adversely affect 
us  in  ways  we  cannot  currently  predict.   Implementation  of  these  rules  started  in  2011  and  is  expected  to  continue  for  the  next  few  years.   For  more  information,  see 
“Item 4.B. Business Overview—Government Regulations Applicable to Our Contracts—Rules Enacted by ARSESP”.

In 2011, ARSESP altered the standard contract that we are required to use in our relationships with retail customers.  This alteration requires that invoices be sent to the 
user of the service rather than the owner of the property.  Since 2011, we have implemented several measures and instituted new rules for the update of our client registry.  
Currently, more than 90% of our water and sewage connections are billed to the user of our services, as foreseen under current regulations. We estimate that this change 
will affect ongoing legal disputes, particularly those regarding collection procedures, as well as business discussions in general.  However, since this change is still being 
implemented, we are not currently able to predict its impact on our business. 

In August 2012, ARSESP issued Resolution No. 346/2012, which established that users should be compensated for any interruptions in water supply.  Implementation 
of this regulation has been suspended pending further technical discussions.  In 2013, ARSESP held public consultations that resumed technical discussions on the subject, 
but the new resolution that will replace Resolution No. 346/2012 has not yet been published.

16

The Basic Sanitation Law No. 11,445/2007 also allows municipalities to create their own regulatory agencies rather than being regulated by ARSESP.  As a result, a 
number of municipalities have created their own regulatory agencies.  If other municipalities create new agencies or retain regulatory powers, we may be subject to their 
regulation  and  to  any  limitations  on  our  services  that  such  agencies  may  set.   We  are  involved  in  legal  proceedings  that  dispute  the  authority  of  these  new  agencies  to 
regulate and monitor our local contracts and our operations in metropolitan regions and urban clusters instituted by the State. We cannot foresee any changes that any such 
new agencies may implement regarding our business.  If any such changes are unfavorable, they could materially and adversely affect us.

The State of São Paulo, pursuant to Article 25, Section 3 of the Brazilian Constitution, enacted the State Complementary Law, or “LCE”, creating the metropolitan 
regions of São Paulo (LCE No. 94/1974), Baixada Santista (LCE No. 815/1996), Campinas (LCE No. 870/2000), Vale do Paraíba and Litoral Norte (LCE No. 1,166/2012), 
Sorocaba  (LCE  No. 1,241/2014),  and  the  urban  clusters  of  Jundiaí  (LCE  No. 1,146/2011)  and  Piracicaba  (LCE  No. 1,178/2012).   These  areas  incorporate  independent 
municipalities that modify the exercise of their constitutional competencies, including those related to basic sanitation services, and increase the number of judicial disputes 
concerning the regulation and oversight of services in areas currently served by us and regulated by ARSESP.  We cannot anticipate the result of these judicial disputes and 
the adverse material effects that may result from them, especially if the rules of regulation and monitoring of services issued by municipal agencies come to coexist with 
those already published by ARSESP and implemented into our operational and corporate processes since 2011. 

For more information on ARSESP regulations, see “Item 4.B. Business Overview—Tariffs—Government Regulations Applicable to Our Contracts—Rules Enacted by 

ARSESP—Consumer Relations in the State of São Paulo”.

New joint entities have been, and may continue to be, set up to oversee basic sanitation services in metropolitan regions, including the São Paulo metropolitan region.  
We cannot predict how the shared management of these operations will be carried out in the São Paulo metropolitan region and other metropolitan regions we operate 
or what effect this may have on our business, financial condition or results of operations.

There are some pending cases before the Brazilian Supreme Court regarding whether the right to execute concession and program agreements in metropolitan regions 
belongs to the State or the municipal government.  On February 28, 2013, the Brazilian Supreme Court decided a then pending case on this matter related to the state of Rio 
de Janeiro.  A majority of the court held that the state of Rio de Janeiro must set up new entities to oversee the planning, regulation and auditing of basic sanitation services 
in the metropolitan region with the non-partisan participation of all the municipalities located in the metropolitan region. 

On March 6, 2013, the court ruled that this holding would come into effect in the state of Rio de Janeiro after a remaining appeal of its holding is decided.  The court’s 
holding represents a new paradigm in the management and provision of services.  The Supreme Court has yet to clarify the effects and extension of its decision.  The São 
Paulo metropolitan region (including the municipalities to which we provide water on a wholesale basis), to which a decision on such pending or new cases may apply, 
accounted for 67.3% of our gross operating revenue from services in 2015 (excluding revenues relating to the construction of concession infrastructure). In January 2015, 
the Federal Government issued the  Metropolitan Bylaws (Law No. 13,089/2015) which establishes general guidelines for the planning, management and performance of 
public interest projects  in  metropolitan  regions and  in  urban  clusters  instituted by the states; the general planning standards for integrated urban development  and  other 
international governance instruments; and the criteria to receive federal loans for initiatives related to international governance in the field of urban development. 

We  cannot  predict  how  the  shared  management  of  these  operations  will  be  carried  out  in  the  São  Paulo  metropolitan  region  and  other  municipalities  in  which  we 

operate or what effect the shared management may have on our business, financial condition or results of operation.

For more information on services in metropolitan regions, see “Item 4.B. Business Overview - Government Regulations Applicable to Our Contracts – Agreements 

with Municipalities and Metropolitan Regions”.

17

The terms of our agreement to provide water and sewage services in the city of São Paulo could have a material adverse effect on us.

The  provision  of  water  and  sewage  services  in  the  city  of  São  Paulo  accounted  for  48.2%  of  our  gross  operating  revenues  (excluding  revenues  relating  to  the 

construction of concession infrastructure) in the year ended December 31, 2015.

On June 23, 2010, the State and the city of São Paulo executed an agreement in the form of a convênio with our and ARSESP’s consent, under which they agreed to 
manage the planning and investment for the basic sanitation system of the city of São Paulo on a joint basis.  In application of the convênio, we executed a separate contract 
dated June 23, 2010 with the State and the city of São Paulo, to regulate the provision of these services for the following 30 years.  Among other principal terms of this 
separate agreement, we must transfer 7.5% of the gross  revenues we derive under the convênio and subtract (i) COFINS and PASEP taxes and (ii) unpaid bills of publicly 
owned  properties  in  the  city  of  São  Paulo,  to  the  Municipal  Fund  for  Environmental  Sanitation  and  Infrastructure  (Fundo  Municipal  de  Saneamento  Ambiental  e 
Infraestrutura),  established  by  Municipal  Law  No.  14,934/2009.   See  “Item  7.B.  Related  Party  Transactions—Agreement  with  the  State  and  the  city  of  São  Paulo”  for 
further discussion of the principal terms of the convênio and principal terms of the separate contract we executed in application of the convênio.

Because we were not previously required to transfer 7.5% of the gross revenues obtained from providing sanitation services in the municipality of São Paulo to the São 
Paulo Municipal Fund for Environmental Sanitation and Infrastructure as established under the convênio, our existing tariff and adjustment formulas do not account for this 
requirement.  Nonetheless, ARSESP is required to ensure that the tariffs will adequately compensate us for the services we provide, which includes the pass-through to 
tariffs.

In March 2013, ARSESP issued Resolution No. 407/2013 authorizing us to pass through to the service bill the 7.5% transfer to the São Paulo Municipal Sanitation and 
Infrastructure  Fund  as  a  legal  charge,  as  defined  by  municipal  legislation.   However,  pursuant  to  the  Program  Contracts  and  the  Sewage  and  Water  Supply  Service 
Contracts, this charge must be considered in the tariff revision.

In April 2013, ARSESP issued Resolution No. 413/2013, which  suspended Resolution No. 407/2013 until the tariff revision process is concluded, thereby postponing 
our authorization to pass the charge through to consumers on the service bill.  The postponement of Resolution No. 407/2013 was due to a request from the São Paulo State 
Government to analyze, among other things, methods of reducing the impact on consumers.  

In April 2014, ARSESP issued Resolution No. 484/2014, (further ratified by Resolution No. 520, issued November 2014), which establishes the conclusion of the tariff 
revision.  However, the State and the city of São Paulo requested to maintain the suspension of ARSESP Resolution No. 407/2013, postponing our authorization to pass the 
charge through to consumers on the service bill, until the revision of our contract with the State and city of São Paulo is concluded.

In May 2014, ARSESP issued Resolution No. 488/2014, which maintained the suspension of Resolution ARSESP No. 407/2013 until the results are obtained in the 
revision of the contract signed between us, the city and the State of São Paulo, thereby delaying the authorization to pass the charge through to consumers on the service 
bill.  We cannot know when we will be able to pass the 7.5% charge on to consumers through the service bill.

As of December 31, 2015, we have transferred approximately R$1.8 billion to the São Paulo Municipal Fund for Environmental Sanitation and Infrastructure since 

2010.  We cannot assure you when and how we will recover this amount.

We cannot assure you that this charge will eventually be passed through to customers or that the continued delay in passing this charge through to customers will not 
further  affect  our  financial  condition.   For  additional  information  on  ARSESP  regulations,  see  “Item 4.B.  Business  Overview—Tariffs”  and  “Item 4.B.  Business 
Overview—Government Regulations Applicable to Our Contracts— Agreements with Municipalities and Metropolitan Regions – Rules Enacted by ARSESP”.

18

We currently lack formal agreements or concessions with 53 of the municipalities to which we provide service, and 36 of our existing concession agreements will expire 
between 2016 and 2030.  We may face difficulties in continuing to provide water and sewage services in return for payment in these and other municipalities, and we 
cannot assure you that they will continue to purchase services from us on the same terms or at all.

As  of  December 31,  2015,  we  held  formal  30-year  agreements  with  278  municipalities  (including  the  city  of  São  Paulo)  of  the  364  municipalities  we  serve.   We 
entered into 4 of these agreements during 2015.  The 278  municipalities with which we had formal agreements at year-end accounted for 78.6% of our total revenues for 
the year ended December 31, 2015, and 68.4% of our intangible assets as of December 31, 2015.  Of the 53 served municipalities for which we lacked formal agreements at 
year-end, we were in the process of actively renegotiating with all municipalities.  Together, these 53 municipalities accounted for 12.9% of our total revenues for the year 
ended December 31, 2015 and 21.6% of our intangible assets as of that same date.   Between 2016 and 2030, 36 of our existing concession agreements will expire.  These 
36 concession agreements accounted for 7.8% of our total revenues for the year ended December 31, 2015 and 7.4% of our intangible assets as of that same date. 

We may not be able to continue providing service on current terms, or at all, in the municipalities for which we do not have formal agreements, including the 53 for 
which we are renegotiating expired agreements.  In particular, the lack of formal concessions or contractual rights in these municipalities means that we may not be able to 
enforce our right to continue to provide services and we may face difficulties in being paid on a timely basis, or at all, for the unamortized assets.  If we are successful in 
renegotiating the expired agreements, or executing formal agreements with the municipalities for which we have never had agreements, those agreements may not contain 
terms that are as favorable as those under which we currently operate.  We cannot make any such assumption because the Basic Sanitation Law prevents us from planning, 
regulating and monitoring our services and it requires more stringent control by the municipalities or by ARSESP.  The municipalities for which we do not have formal 
agreements may choose to start providing water and sewage services directly themselves, or may run public tenders to select another provider.  They may set eligibility 
requirements for which we do not qualify and, if we do qualify and participate in these tenders, we may not win.  

Any  of  these  events  could  have  a  material  adverse  effect  on  our  business,  results  of  operations  and  financial  condition.   See  “Item 4.B.  Business  Overview—Our 
Operations” and “Item 4.B. Business Overview— Government Regulations Applicable to our Contracts - Contracts for the Provision of Essential Basic Sanitation Services 
in Brazil.”

In the municipalities with which we did not have formal agreements by December 31, 2015, we continued operating with municipal approval or with judicial support.

Municipalities may terminate our concessions before they expire in certain circumstances.  The indemnification payments we receive in such cases may be less than 
the value of the investments we made. 

Municipalities  have  the  right  to  terminate  our  concessions  if  we  fail  to  comply  with  our  contractual  or  legal  obligations  or  if  the  municipality  determines  in  an 
expropriation proceeding that early termination of the concession is in the public interest.  If a municipality terminates our concession, we are entitled to be indemnified for 
the unamortized portion of our investments.  

The Basic Sanitation Law provides that on early termination of a concession, the entity that provides sanitation services should carry out a valuation of the assets that 
relate to the services provided, in order to calculate the unamortized portion of its investments.  This valuation uses the criteria defined in the service contract or, in the 
absence of a contract, is based on customary practice with respect to the services for the preceding 20 years.  The resulting indemnification payment may be less than the 
remaining  value  of  the  investments  the  sanitation  service  provider  made.   Nonetheless,  the  indemnification  payments  may  not  occur  voluntarily  by  the  municipality, 
creating an opportunity for judicial dispute.  If faced with such a situation, there is the risk that the judicial decision will consider the indemnification as undue or set it at a 
lower value than that of our investments. 

With regard to our operations that lack contracts or have indefinite or overdue timeframes, the Basic Sanitation Law reduced the maximum time period for payment of 
indemnification in such cases to four years.  This provision applies to concession agreements entered into prior to the enactment of the Basic Sanitation Law only to the 
extent that the concession agreement does not contain a contractual indemnification provision, or we have not otherwise entered into an agreement with the municipality 
with regard to such early termination.  These provisions have not yet been tested by the courts and we are therefore unable to predict the effect of the Basic Sanitation Law 
on our rights to indemnification for the early termination of any particular concession.

19

In 1997, the municipality of Santos enacted a law in order to repossess our water and sewage systems in Santos.  We adopted the necessary judicial measures to contest 
this and we filed an ordinary suit against the municipality of Santos, after which the appellate court issued a decision in our favor.  The proceedings were terminated and we 
have continued operations in the municipality.  In September 2015, the State of São Paulo and the municipality of Santos entered into a service provision contract, with the 
intervention and consent of ARSESP.  Under this agreement, ARSESP exercises the duties of regulating and supervising the provision of water and basic sanitation services 
in Santos, while SABESP continues to be responsible for the provision of water and basic sanitation to the municipality of Santos for the next 30 years.

In 1995, the municipality of Diadema terminated its concession agreement with us and did not pay the indemnification for our investments.  In March 2014, we entered 
into an agreement with the municipality of Diadema to resolve water supply-related debt and indemnities.  This agreement includes a contract to resume direct supply of 
water and sewage services to the municipality of Diadema for 30 years with the regulation and supervision of ARSESP.  Guarantees are in place if the municipality of 
Diadema breaches the agreement entered into with us.

Other  municipalities  may  seek  to  terminate  their  concession  agreements  before  the  contractual  expiration  date.   If  this  occurs  and  we  do  not  receive  adequate 

indemnification for our investments, or the indemnification is paid over an extended period, we may suffer material harm to our financial position.

We may face difficulties in collecting overdue amounts owed to us by municipalities to which we provide water on a wholesale basis and municipal government entities.

As of December 31, 2015, our total accounts receivable was R$4,817.4 million.  Of this amount, certain municipalities to which we provide water on a wholesale basis 
owed  us  R$2,311.3  million,  and  certain  municipal  government  entities  owed  us  R$710.4  million.   Of  the  total  amount  owed  by  municipalities,  R$237.8  million  was 
overdue by between 30 and 360 days and R$2,047.7 million was overdue by over 360 days.

The Brazilian courts are entitled to obligate us to continue to supply water to these municipalities, even when we have not received payments due to us.  We have no 
way of ensuring that negotiations with these municipalities or legal action taken against the municipalities will result in payments being made.  Some entities associated 
with municipal governments for which we provide services also do not make regular payments.  We cannot guarantee if or when these entities will make payments on a 
regular basis or pay the amounts owed to us.  If the municipalities and related entities do not pay the amounts owed to us, we may experience a further material adverse 
effect on our financial position.

Aiming to revolve existing debts with the municipalities to which we provide water on a wholesale basis, in 2015 we intensified the process of collecting the debts for 
the  provision  of water  and  basic  sanitation  through  the Single Registry of  Debtors of São  Paulo  (Cadastro Único de Devedores  de  São Paulo),  or State CADIN.  With 
regard to three municipalities to which we provide water on a wholesale basis, Santo André, Guarulhos and Mauá, in October 2015 and January 2016 we had executed 
Protocols of Intentions with each of them, to prepare studies and evaluations aimed at resolving commercial relations and exiting debts between these municipalities and us.

For more information on wholesale operations, see “Item 4.B. Business Overview—Our Operations—Description of Our Activities—Wholesale Operations”.

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

Our capital expenditure program will require resources of approximately R$12.5 billion in the period from 2016 through 2020.  In 2015 we recorded R$3.5 billion in 

capital expenditures.

In  addition  to  cash  generated  by  our  operations,  we  have  funded  and  intend  to  continue  funding  these  capital  expenditures  with  issuances  of  debt  securities  in  the 
domestic and international capital markets as well as borrowings in Brazilian reais and foreign currencies.  A significant portion of our financing needs is obtained through 
long-term  financing  at  attractive  interest  rates  from  Brazilian  federal  public  banks,  multilateral  agencies  and  international  governmental  development  banks.   If  the 
Brazilian government changes its policies regarding the financing of water and sewage services, or if we fail to obtain long-term financing at attractive interest rates from 
domestic  and  international  multilateral  agencies  and  development  banks  in  the  future,  we  may  not  be  able  to  meet  our  obligations  or  finance  our  capital  expenditure 
program, which could have a material adverse effect on our business and financial condition.

20

Furthermore, Brazilian public and private financial institutions are legally limited up to a certain percentage of their shareholder’s equity to provide loans to public 

sector entities, including, for example, us.  These limitations could adversely affect our ability to continue our capital expenditure program.

Our debt includes financial covenants that impose indebtedness limits on us.  Our failure to comply with these covenants could seriously impair our ability to finance 
our  capital  expenditure  program,  which  could  have  a  material  adverse  effect  on  us.  For  further  information  on  these  covenants,  see  “Item 5.B.  Liquidity  and  Capital 
Resources—Capital Sources—Indebtedness Financing—Financial Covenants”.  

Compliance with environmental laws and environmental liability payments could have a material adverse effect on us. 

We are subject to extensive Brazilian federal, state and municipal laws and regulations relating to the protection of human health and the environment.  These laws and 
regulations  set potable water  standards and limit  or  prohibit  the  discharge  or spillage  of effluent  produced in  our  operations, particularly  raw  sewage.   We occasionally 
suffer accidents such as leakages or breaks in pipes that could lead to liability for damages under environmental law.  We could be subject to various types of criminal, 
administrative and civil proceedings for non-compliance with environmental laws and regulations that could expose us to penalties and criminal sanctions, such as fines, 
closure  orders  and  significant  indemnification  obligations.   The  scope  and  enforcement  of  environmental  laws  in  Brazil  are  becoming  more  stringent,  and  our  capital 
expenditures and environmental compliance costs may increase substantially as a result.  These expenses may lead us to reduce expenditure on strategic investments, which 
could harm our business.  In addition, Brazilian courts are enforcing environmental laws more stringently than in the past, which may result in fines or liability for damages 
that  are  significantly  higher  than  those  we  currently  anticipate.   We  are  party  to  various  environmental  proceedings  that  could  have  a  material  adverse  impact  on  us, 
including civil processes and investigations relating to the release of untreated sewage into waterways and the disposal of sludge generated by treatment plants. We are 
also involved  in  proceedings  challenging  the  extraction  of  water  resources  in  the  face  of  the  current  water  crisis.   Any  unfavorable  judgment  in  relation  to  these 
proceedings, or any material unforeseen environmental liabilities, may have a material adverse effect on us.  For further information on these proceedings, see “Item 8.A. 
Financial Statements and Other Financial Information—Legal Proceedings”.  For further information on investments in environmental programs, see “Item 4.A. History 
and  Development  of  the  Company—Main  Projects  of  our  Capital  Expenditure  Program”,  “Item 4.B.  Business  Overview—Sewage  Treatment  and  Disposal”,  “Item 4.B 
Business Overview—Environmental Matters” and “Item 4.B. Business Overview—Environmental Regulation”.  For further information on the Water Crisis, see “Item 4.B. 
Business Overview—The Current Water Crisis”.

New laws and regulations relating to climate change and changes in existing regulation, as well as the escalation of the physical effects of extreme weather events, may 
result in increased liabilities and increased capital expenditures, which could have a material adverse effect on us. 

Current federal, state and municipal laws and regulations on climate change establish global goals, which we will have to meet, concerning greenhouse gas emissions 
and  this  may  require  us  to  increase  our  investments  in  order  to  comply  with  these  laws.   Currently,  such  goals  have  not  yet  been  established  for  the  sanitation  sector, 
however, if we increase our capital expenditures for this purpose, we may be required to reduce expenditures on other strategic investments.

In addition, climate change may lead to increased frequency of extreme weather events such as droughts or torrential rain, which may affect our ability to deliver our 

services and require us to strengthen our actions such as:



investing in seeking new water sources located further from major consumer centers;

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





investing in new technologies;

improvement of water conservation practices and demand management alternatives such as economic mechanisms or educational programs; and 

increasing the capacity of our water reserves.

Extreme weather events such as torrential rain may also cause impacts to our installations that can lead to negative impacts to the environment and society.

A rise in sea level could result in increased salinity in the river estuaries where we abstract water, which could affect water treatment in these areas.  Rising sea levels 

could also cause damage in our sewage collection network.  

Additionally, increases in air temperature could affect demand for water.  Increased frequency of extreme weather events may also further reduce water levels in the 
reservoirs  that  power  hydroelectric  power  plants  in  Brazil,  which  may  cause  energy  shortages  and  increase  electricity  prices,  which  may  adversely  affect  our  costs  and 
operations.

We cannot predict all of the effects of extreme weather events, therefore making it difficult to predict necessary investments.  We have not provisioned any funds for 

climate change events as current technology and scientific understandings of climate change make it difficult to predict potential expenses and liabilities.  

We  may  be  required  to  adopt  new  norms  to  improve  our  energy  use  efficiency  and  minimize  the  release  of  greenhouse  gases  when  we  renew  the  environmental 

licenses for the systems already in operation or when we obtain environmental licenses for new enterprises. 

We may need to make substantial new expenditures, either to comply with new environmental regulations linked to climate change or to prevent or correct the physical 

effects of extreme weather events, any of which could have a material adverse effect on our results of operations.

For more information, see “Item 4.B. Business Overview—Environmental Matters—Climate Change Regulations:  Reduction of Greenhouse Gases (GHG) Emissions” 

and “Item 4.B. Business Overview—Energy Consumption”.

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

We are party to a number of legal proceedings involving significant monetary claims.  These legal proceedings include, among others, civil, tax, labor, corporate and 
environmental issues.  As of December 31, 2015, the total value of all outstanding claims against us was R$47,936.8 million (net of R$386.3 million in escrow deposits).  A 
substantial monetary judgment against us in one or more of these legal proceedings may have a material adverse effect on our financial condition.  We have provisioned a 
total aggregate amount of R$1,082.2 million (net of escrow deposits) as of December 31, 2015 to cover probable losses related to legal proceedings.  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  a  material  adverse  effect  on  us.   For  more  information,  see  “Item 8.A.  Financial  Statements  and  Other  Financial 
Information—Legal Proceedings”.

Risks Relating to Our Common Shares and ADSs

We may not always be in a position to pay dividends or interest on shareholders’ equity and ADSs.

Depending  on  our  future  results,  our  shareholders  may  not  receive  dividends  or  interest  on  own  capital  if  we  do  not  generate  a  profit.   Despite  the  requirement  to 
distribute  a  minimum  of  25%  of  our  annual  net  income  to  shareholders,  our  future  financial  position  may  not  permit  us  to  distribute  dividends  or  pay  interest  on  own 
capital.

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  from  emerging  markets  such  as  Brazil  involves  greater  risk  than  investing  in  securities  of  issuers  in  major  securities  markets,  and  these 
investments are often 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.  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.  The ten largest companies in terms of market capitalization represented approximately 
51% of the aggregate market capitalization of the BM&FBOVESPA as of December 31, 2015.  

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

The Brazilian custodian for the common shares underlying our ADSs must obtain a certificate of registration from the Central Bank in order to be entitled to remit 
U.S. dollars abroad for payments of dividends and other distributions relating to our common shares or upon sales of our common shares.  If an ADR holder decides to 
exchange ADSs for the underlying common shares, the holder will be entitled to continue to rely on the custodian’s certificate of registration for five business days from the 
date of exchange.  After that period, the holder may not be able to obtain and remit U.S. dollars abroad upon sale of our common shares, or distributions relating to our 
common shares, unless he or she obtains his or her own certificate of registration or registers the investment under  CMN Resolution No. 4,373/2014, dated September 29, 
2014,  which  entitles  registered  foreign  investors  (the  “4,373  Holder”)  to  buy  and  sell  on  a  Brazilian  stock  exchange.   If  the  holder  does  not  obtain  a  certificate  of 
registration or register under Resolution No. 4,373/2014, the 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.   The  custodian’s  certificate  of 
registration or any foreign capital registration obtained by a holder may be affected by future legislative changes, and additional restrictions applicable to the holder, the 
disposition of the underlying common shares or the repatriation of the proceeds of disposition may 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 assets 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 more difficulty 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, 
since the State may only be able to pay a judgment if it is provided for in its budget in a subsequent fiscal year.  None of the public property of our controlling shareholder 
is available for seizure or attachment, either prior to or after judgment. 

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

Under our bylaws, any disputes among us, our shareholders and our management with respect to the Novo Mercado rules, Law No. 6,404 of December 15, 1976, as 
amended (“Brazilian Corporate Law”) and Brazilian capital markets regulations will be resolved  by arbitration conducted pursuant to the BM&FBOVESPA Arbitration 
Rules in the Market Arbitration Chamber.  Any disputes among shareholders and ADR holders, and any disputes between us and our shareholders and ADR holders, will 
also be submitted to arbitration.  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 bylaws.  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. 

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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,  as  amended,  or  the  Securities  Act,  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.

Holders of our ADSs do not have the same voting rights as our shareholders. 

Holders of our ADSs do not have the same voting rights as holders of our shares.  Holders of our ADSs are entitled to the contractual rights set forth for their benefit 
under the deposit agreements.  ADS holders exercise voting rights by providing instructions to the depositary, as opposed to attending shareholders meetings or voting by 
other  means available  to shareholders.  In  practice, the  ability  of a holder of  ADSs  to  instruct the  depositary as to voting will depend  on  the  timing and  procedures for 
providing instructions to the depositary, either directly or through the holder’s custodian and clearing system.  The deposit agreement also provides that if the depositary 
does not receive any instructions from a holder of ADRs, the ADR holder may be deemed to have given a discretionary proxy to a person designated by our company and 
the underlying shares may be voted by such person.  However, we have chosen not to designate any person to exercise these deemed proxy rights with respect to any annual 
or special general meetings, and ADSs for which no specific voting instructions were received by the Depositary were therefore not voted at that meeting.

 ITEM 4.

INFORMATION ON THE COMPANY

A. History and Development of the Company

Overview

Companhia de Saneamento Básico do Estado de São Paulo – SABESP is a mixed capital company (sociedade de economia mista) with limited liability.  We were 
incorporated on September 6, 1973 under the laws of the Federative Republic of Brazil.  We are registered with the Commercial Registry of the State of São Paulo (Junta 
Comercial do Estado de São Paulo) under registration number NIRE 35300016831.  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.  We are allowed  to  operate,  in a subsidiary form, in other Brazilian locations and abroad.  See “Item 4.B. 
Business Overview— Government Regulations Applicable to Our Contracts—Contracts for the Provision of Essential Basic Sanitation Services in Brazil”.

We believe we are one of the largest water and sewage service providers in the world (based on the number of customers in 2013, according to the 14th edition of the 
Pinsent  Masons  Water  Yearbook  2012-2013,  the  most  recent  edition  released  of  this  study).  We  operate  water  and  sewage  systems  in  the  state  of  São  Paulo,  which 
includes the city of São Paulo, Brazil’s largest city.  According to the 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.  For the year ended December 31, 2015, we generated net revenue of R$11,711.6 million and net income of R$536.3 million.  Our 
total assets amounted to R$33,706.6 million and our total shareholders’ equity amounted to R$13,716.6 million as of December 31, 2015. 

As of December 31, 2015, we provided water and sewage services to a broad range of residential, commercial, industrial and governmental customers in 364 of the 645 
municipalities in the state of São Paulo, including the city of São Paulo.  Substantially all of our concessions or program agreements have 30-year terms.  At year-end 2015 
we lacked formal agreements for 53 of the municipalities we serve, each of which we are currently in the process of renegotiation.  From January 1, 2016 through 2030, 36 
further concessions will expire, and we will seek to replace them with program agreements.  In addition to the 364 municipalities we served, we also provided water service 
to the municipality of Mogi das Cruzes, pursuant to two partial water contracts under which we service only certain neighborhoods of that municipality.  See “Presentation 
of Financial and Other Information—Other Information—Our Contracts and the Municipalities We Serve”. 

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We also supply water on a wholesale basis to 5 municipalities in the São Paulo metropolitan region in which we do not operate water distribution systems (together 
covering  a  total  estimated  urban  population  of  approximately  3.1  million).   4  of  these  municipalities  also  utilize  our  sewage  treatment  services.   For  the  year  ended 
December 31, 2015, the São Paulo metropolitan region (including the municipalities to which we provide water on a wholesale basis) accounted for 67.3% of our gross 
operating revenue (excluding revenues relating to the construction of concession infrastructure), while the Regional Systems accounted for 32.7%.

As of December 31, 2015, we provided water services through 8.4 million water connections to approximately 25.5 million people, representing approximately 60% of 
the urban population of the state of São Paulo, and had a water coverage ratio of approximately 99% in respect of all regions.  As of that date, we provided sewage services 
through 6.9 million sewage connections to approximately 22.8 million people and had an effective sewage coverage ratio of 86%.  As of December 31, 2015, we operated 
using 71,705 kilometers of water pipes and water transmission lines and 48,774 kilometers of sewer lines. 

We also provide water and/or sewage services to 4 other municipalities through special purpose companies.  In addition, we provide consulting services regarding the 
rational use of water and financial, commercial and operational management in Panama, Honduras and Nicaragua.  We serve Panama and Honduras through an agreement 
with the consultancy firm Latin Consult.  We also have two partnerships with other companies:  Aquapolo Ambiental S.A., a joint venture with a private sanitation services 
operator, and Attend Ambiental S.A., a joint venture with Estre Ambiental S.A.  Aquapolo Ambiental S.A. commenced operations in the second half of 2012 and operates 
the  largest  water  recycling  facility  in  the  southern  hemisphere.   Aquapolo  Ambiental  S.A.  has  the  capacity  to  supply  up  to  1,000  liters  per  second  to  industries  in  the 
Capuava petrochemical cluster of the São Paulo metropolitan region.  Attend Ambiental commenced operations in the second half of 2014 to operate a pre-treatment plant 
for non-domestic effluent in the São Paulo metropolitan region.

The  State  of  São  Paulo,  our  controlling  shareholder,  is  required  by  State  Law  No. 11,454/2003  to  own  at  least  50%  plus  one  of  our  common  shares.   As  of  April, 
22,  2016,  the  State  owned  50.3%  of  our  outstanding  common  shares.   As  a  mixed  capital  company,  we  are  an  integral  part  of  the  State  governmental  structure.   Our 
strategy  and  major  policy  decisions  are  formulated  in  conjunction  with  the  State  Secretariat  for  Sanitation  and  Water  Resources  as  part  of  the  State’s  overall  strategic 
planning.  The majority of the members of our board of directors and our board of executive officers are nominated by the State government.

In addition, our capital expenditure budget is subject to approval by the State legislature and is approved in conjunction with the budget of the State Secretariat for 
Sanitation and Water Resources 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  results  of  operations  and  financial  condition  are  generally  affected  (i)  by  our  ability  to  raise  tariffs,  control  costs  and  improve  productivity,  (ii)  the  general 
economic conditions in Brazil and abroad; and (iii) climate conditions.  In order to supply water to the São Paulo metropolitan region, we use water from eight systems, 
most of which were affected by the most severe drought in our service region in the last 85 years, of which the Cantareira System, our largest water system, was the most 
affected.  As a result of the drought and the low water inflow in the Cantareira System, DAEE and ANA, since 2014, have continuously regulated the volume of water we 
are permitted to extract from this system, authorizing us to extract between 13 m³/s and 14 m³/s in the most drastic moments of the crisis. Until the renewal of our water 
right which shall occur in May 2017, the volume of water that we have been authorized to extract from the Cantareira System has been communicated to us via monthly 
notices according to the behavior of rainfall, water inflow, level of water in our reservoirs and our requests to extract water based on this information.  Due to the return of 
normal rainfall levels beginning in October 2015, as of February 2016 we have been allowed to extract 23 m³/s of water. 

25

In  order  to  balance  supply  and demand   despite  the  restricted  water  availability,  we   adopted  throughout  2014  and  2015  a  series  of  initiatives,  amongst  which 
including:   (i)  using  treated  water  from  other  production  systems  to  serve  consumers  originally  supplied  by  the  Cantareira  system;  (ii) to  offer  discounts  (bonus)  to 
consumers that use below average amounts of water, compared to average consumption; (iii) reducing pressure in the water distribution lines in order to decrease leakage; 
(iv) adjusting the volume of water sold to municipalities that operate their own distribution network; and (v) using pumps in order to extract water located below the intakes 
of the Cantareira system, from the so-called “technical reserve”. Due to the return of normal rainfall levels in the rainy season beginning in October 2015, as of January 
2016 it was no longer necessary to pump water out of the technical reserve of the Cantareira system and we modified the rules for obtaining discounts (bonus) in February 
2016.  In addition, as of December 2015, the time period during which water is pumped out at reduced pressure in the water distribution lines is returning to the normal 
nighttime period, as it was prior to the water crisis.  In March 2016, as a result of the increased level of rainfall and increased predictability of the level of water in our 
reservoirs,  we  requested  to  ARSESP  the  cancellations  of  our  Water  Consumption  Reduction  Incentive  Program  and  of  the  Contingency  Tariff.   ARSESP  approved  our 
requests in the end of March 2016 and the aforementioned policy changes shall be applied to water meter readings recorded as of May 1, 2016.

For further information on the water crisis see “Item 4.B. Business Overview—The Current Water Crisis”.

Our Strengths 

We believe that our strong business position and future prospects derive from the following strengths:

Well-established business with significant size, scale and know-how to operate in complex urban settings.  We believe we are one of the largest water and sewage 
service  providers  in  the  world.   We  provide  water  services  directly  to  approximately  25.5  million  people  and  supply  water  on  a  wholesale  basis  to  an  additional  urban 
population of approximately 3.1 million people.  As of  December 31,  2015, we had  an  effective water  coverage ratio of approximately  99% in respect of  all regions in 
which we operate.  We also provide sewage services directly to approximately 22.8 million people, achieving an effective sewage coverage ratio of 86% in respect of all 
regions in which we operate as of December 31, 2015.  Our significant size and scale have required us to operate in complex urban settings such as shantytowns (favelas)
and environments without urban planning, thereby enabling us to develop well-trained personnel, skills for operating in adverse conditions that we believe our competitors 
lack. 

Operations in Brazil’s most populous and wealthy state.  The state of São Paulo, which is located in the most developed and economically active region of Brazil, is 
the most populous state in Brazil, with an estimated total population of 45 million as of December 31, 2015.  The city of São Paulo had an estimated total population of 
11.1 million as of the same date, while the São Paulo metropolitan region had a total population of 21.4 million.  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$1.7 trillion in 2013, representing approximately 32.1% of Brazil’s total GDP, 
according to the most recent data collected by the IBGE.  The state of São Paulo generates more revenue from water and sewage services than any other Brazilian state. 

Strong Base of Contracted Business.  Between January 1, 2007 and December 31, 2015, we executed 30-year agreements with 278 of the 364 municipalities we serve, 
including  an  agreement  with  the  city  of  São  Paulo,  in  June 2010,  and  Santos  in  September  2015.   For  the  year  ended  December 31,  2015,  income  from  these  30-year 
agreements accounted for 78.6% of our gross operating revenues (including revenues relating to the construction of concession infrastructure).

Access to low-cost and diverse sources of financing.  Our strong cash flow generation from operations and our role as an essential public service provider places us in 
a  privileged  position  in  our  industry  to  obtain  low  cost,  long-term  financing  from  Brazilian  public  banks,  and  domestic  and  international  multilateral  agencies  and 
development  banks.   We  do  not  depend  on  a  limited  number  of  sources  of  financing,  but  instead  have  access  to  various  funding  alternatives  in  the  Brazilian  and 
international markets to fund our working capital needs and our capital expenditure programs.

Strong  corporate  governance  practices.  In  2002,  we  joined  the  Novo  Mercado  segment  of  the  BM&FBOVESPA,  which  is  the  listing  segment  in  Brazil  with  the 
highest  corporate  governance  requirements.   As  a  result,  we  are  committed  to  certain  corporate  governance  standards  that  are  not  otherwise  required  by  Brazilian  law, 
which provides heightened protection to our shareholders and enhances the quality of information we disclose to the market.  From December 1, 2007 until 2015, we were 
part of the BM&FBOVESPA Corporate Sustainability Index, or ISE.  Due to the need to focus the attention of all our departments to overcome the water crisis, we decided 
not to participate in the selection process to be a part of the ISE in 2016.

26

High quality operations.  We believe that we adhere to high standards of service and employ the best available technology in the sanitation business to control the 
quality  of the  water  we  abstract,  process and  distribute.   Of  our 16 laboratories  in  total,  our central  laboratory and  13  of  our  regional  laboratories  are  accredited  by  the 
National  Institute  of  Metrology,  Quality  and  Technology,  Standardization  and  Industrial  Quality,  or  INMETRO,  and  comply  with  the  ABNT  NBR  ISO  IEC  17025 
standard, thereby assuring the quality and accuracy of our test results.  Moreover, our 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. 

Our Strategy

Our mission is to provide water and sewage services, contributing to improvements in quality of life and the environment and our goal for the future is to become a 
global reference in  the provision of basic sanitation services in a sustainable, competitive and innovative manner,  focused on the needs of our clients.  To this end, our 
strategic  objectives  are  based  upon  the  guiding  principles  of  water  safety,  quality  in  the  provision  of  services,  sustainability,  integration  and  fostering  relationships, 
innovation and technology, valorization of our personnel and increasing sewage treatment.  Our strategic objectives also focus on our political and institutional relationships 
as well as on our commitment to the market to increase shareholder value.  Due to changes in macroeconomic conditions, the water crisis and consequent impacts on our 
business, our strategy is currently under revision.  Commencing in late 2015 and continuing in 2016, this revised strategy will determine our objectives and targets for the 
next decade.  We seek to implement these guiding principles through the following strategies:

Continue to seek growth while improving our financial results by reducing operating costs, increasing productivity and profitability and prudently managing our 
levels of indebtedness.  We aim to apply our principles of financial growth and sustainability to each business unit, assigning goals and setting clear responsibilities to each 
unit so as to strengthen our financial results.  To achieve this goal, we intend to use our best efforts to reduce operating costs and increase productivity and profitability.  
We  plan  to  improve  the  management  of  our  assets,  as  well  as  to  continue  to  reduce  our  total  operating  expenses  by  automating  some  of  our  facilities,  streamlining 
operational processes, implementing integrated planning and further investing in internal technological research and development.  We also plan to continue our efforts to 
improve our collection of overdue accounts receivable from municipalities to which we provide services, from the State and from other governmental entities, including by 
exploring opportunities  to  offset these  outstanding  debts against  certain  possessory  or  property  rights over  utilities  relating  to water  and sewage  systems.   We  intend  to 
continue  to  fund  our  working  capital  needs  and  estimated  capital  expenditure  programs  with  diversified  sources  of  financing,  such  as  domestic  and  international 
development  banks  and  multilateral  agencies.   We  will  continue  to  seek  market  opportunities  for  low-cost  financing  and  restructuring  of  our  indebtedness  if  and  when 
advantageous and appropriate.

Improve operating efficiency and reduce water loss.  We seek to reduce both physical water loss, which results mainly from leakage; non-physical water loss, which 
results  primarily  from  inaccurate  water  meters  installed  at  customers’  premises  and  at  our  water  treatment  facilities;  and  clandestine  and  illegal  water  use.   In  order  to 
achieve more consistent long-term results, we have developed a comprehensive 12 year program to reduce our water loss rate.  The first four years of the program from 
2009 to 2012 were funded by Banco Nacional de Desenvolvimento Econômico e Social, or “BNDES”.  From 2013 to 2019, part of the program will be funded by a loan 
granted  by  the  government  of  Japan  through  the  Japan  International  Cooperation  Agency,  or  “JICA”.   In  October,  2015,  we  asked  JICA  for  a  term  extension  in  order 
conclude construction work that is within the scope of financing, due to changes in economic conditions in Brazil.  The exchange rate changed significantly last year, with 
the depreciation of real. This situation, combined with the negative impact of the current water crisis on our revenue for 2015 and the need to prioritize investment in water 
production, impacted our ability to invest, resulting in the need to increase the term of JICA loan.  Therefore, the period the program will be funded by the JICA  loan will 
extend until 2019.  For more information on the program to reduce water loss, see “Item 4.B. Business Overview— Corporate Program for Reduction of Water Loss”.

27

Ensure the quality and availability of our services in our existing service area.  Our goal is to maintain an effective water coverage ratio of around 100%, coupled 
with a high standard of quality and availability, and meet the expected population growth by adding 816 thousands water connections between 2016 and 2020.  We also 
intend to increase our sewage coverage ratio to 95% by 2020 by adding 1.19 million sewage connections.  In addition, we are also developing short, medium and long-term 
marketing strategies, such as client segmentation and tailor-made solutions for different types of clients, which we believe will help us increase our customer base.  We also 
seek  to  improve  our  customer  support  strategies  by  modernizing  our  telephone-based  and  internet-based  customer  support  and  to  continuously  measure  the  level  of 
satisfaction of our clients.

Maintain and continue to expand our existing service areas.  We intend to maintain and expand our operating base by executing new agreements.  To this end, we are 
actively  seeking  to  develop  closer  relationships  with  the  municipal  governments  that  we  currently  serve  in  order  to  increase  customer  loyalty  and  thereby  renew  all  or 
substantially all our concession agreements as they expire.  In June 2010, we entered into a 30-year agreement with the State and city of São Paulo for the provision of 
water and sewage services in the city of São Paulo, which in the year ended December 31, 2015 accounted for 48.2% of our gross operating revenues (excluding revenues 
relating to the construction of concession infrastructure).  Between January 1, 2007 and December 31, 2015, we entered into agreements with 278 municipalities (including 
our services agreement with the city of São Paulo), of which 4 were entered into in 2015.  These 278 municipalities accounted for 78.6% of our total revenues for the year 
ended December 31, 2015 and 68.4% of our intangible assets as of the same date.  As of December 31, 2015, 53 of our concessions had expired and are currently being 
renegotiated.  These 53 municipalities accounted for 12.9% of our total revenues for the year ended December 31, 2015 and 21.6% of our intangible assets as of the same 
date.   From  January 1,  2016  through  2030,  36  concession  agreements,  accounting  for  7.8%  of  our  revenues  for  the  year  ended  December 31,  2015  and  7.4%  of  our 
intangible assets as of the same date, will expire.

In 2015 we invested R$3.5 billion and between 2016 and 2020 we plan to invest an additional R$12.5 billion to improve and expand our water and sewage system, 
increase water security, and meet the growing demand for water and sewage services in the state of São Paulo, thereby encouraging these customers to continue using our 
services.  We also regularly explore the possibility of executing agreements for the provision of water and sewage services in municipalities in the state of São Paulo in 
which we currently have no operations or to which we currently supply water and provide sewage treatment solely on a wholesale basis, which together represent a total 
population of approximately 17 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. 

Expand our water and sewage services.  We had an effective sewage coverage ratio of 86% as of December 31, 2015 and plan to increase this ratio to 95% by 2020 by 
adding over 1.19  million sewage connections and sewage treatment from 78% to 95% by 2020.  These investments are necessary to restore the quality of the rivers and 
lakes, providing new sources for water supply.  In addition, there are municipalities in the state of São Paulo representing a total population of approximately 17 million to 
which  we  currently  do  not  provide  water  or  sewage  services,  or  to  which  we  currently  supply  water  solely  on  a  wholesale  basis.   Our  strong  presence  in  the  State  and 
experience in providing water and sewage services places us in a privileged position to expand our sewage services to these additional municipalities in the state of São 
Paulo as well as to other Brazilian states and abroad.  Furthermore, we seek to deepen our relationships with strategic clients that consume high volumes of water (more 
than  500  cubic  meters  per  month)  by  applying  special  tariffs  to  these  clients.   For  more  information,  see  “Item 4.B.  Business  Overview—Description  of  our 
Activities—Sewage Operation” and “Item 4.B. Business Overview—Competition” and “Item 4.B. Business Overview—Tariffs”.

Seek selective opportunities to expand our business.  In accordance with our bylaws, our activities comprise water supply, sanitary sewage services, urban rainwater 
management and drainage services, urban cleaning services, solid waste management services, and also related activities, including the planning, operation, maintenance 
and  commercialization  of  energy,  and  the  commercialization  of  services,  products,  benefits  and  rights  that  directly  or  indirectly  arise  from  our  assets,  operations  and 
activities.  We are allowed to act, in a subsidiary form, in other Brazilian locations and abroad.  Since 2008, we have expanded into activities that complement water and 
sewage services in which we may leverage our know-how, size, scale and profitability.  These activities include consulting and management of sanitation systems. 

28

The following services have already been completed:  



Under  an  agreement  with  Latin  Consult,  we  provided  consulting  services  to  seven  municipalities  in  Honduras  to  implement  a  new  commercial  and 
operational management model.

 We worked with the basic sanitation company of the state of Alagoas to provide technology for the reduction of water loss in the city of Maceió.  Under this 
type of contract, we were remunerated based on our success rate, or more specifically, we profited based on the reduction of water loss achieved in the city of 
Maceió. 

 We developed the sanitation plan for the municipality of Barro Alto in the state of Goiás.  

 We  concluded  the  implementation  and  the  customization  of  our  Aqualog  software  in  the  Sanitation  Company  of  Espírito  Santo  (Companhia  Espírito 

Santense de Saneamento’s - CESAN) water treatment plant in the municipality of Nova Venécia in the state of Espírito Santo. 



Attend Ambiental S.A., a joint venture with Estre Ambiental S.A., commenced operation of a pre-treatment and processing plant for non-domestic effluent 
in the São Paulo metropolitan region during the second half of 2014.

The following services are still in the process of completion:





An  agreement  with  Latin  Consult,  we  are  providing  consulting  services  to  the  Instituto  de  Acueductos  y  Alcantarillados  Nacionales,  the  company 
responsible  for  water  and  sewage  services  in  Panama,  to  assist  with  sustainable  water  use  and  implement  a  new  model  for  commercial,  financial  and 
operational planning and management.  The contract is expected to end in 2016. 

Since  2014,  we  have  been  working  in  Nicaragua,  focusing  on  consulting  and  training  in  management  and  in  the  reduction  of  water  loss.   This  work  is 
scheduled to end in 2016 and is part of an agreement between Brazil and Japan, in which a bilateral technical cooperation agreement was formalized between 
us and Empresa Nicaragüense de Acueductos y Alcantarillados (ENACAL) in Nicaragua.

 We formed Paulista Geradora de Energia, a joint venture with Servtec Investimentos e Participações Ltda. and Tecniplan Engenharia e Comércio Ltda., in 
which we will install two small hydroelectric power plants with a total capacity of 7 MW.  One of the hydroelectric power plants will be built in our water 
treatment plant in Guaraú. The plants are scheduled to begin operating in the second half of 2017.

Establish efficient and competitive ways of attracting, retaining and motivating our personnel.  We intend to become a reference in human resource management, 
recognition.   We  seek  to  raise  workplace  satisfaction  levels  by  establishing  programs  for  the  professional  and 

providing  our  personnel  with  growth  opportunities  and 
personal development of our employees, setting competitive benefit packages and creating a healthy and collaborative work environment.

Streamline internal processes.  We are implementing plans to increase our speed and productivity in responding to regulatory changes; to strengthen and streamline 
our  financial,  commercial  and  administrative  structure;  to  provide  a  solid  and  integral  base  of  information  to  support  the  decision-making  process;  and  to  increase  the 
efficiency  of  our  operations  while  also  reducing  costs.   To  this  end,  we  invest  in  information  technology  to  guarantee  the  resiliency  of  our  business,  thus  providing  an 
environment  of  agile,  dynamic  and  secure  information  technology,  capable  of  absorbing  the  demand  elasticity  of  our  mission-critical  systems  and  of  guaranteeing  its 
continuity in case of datacenter failure (including systematic, technological and infrastructure remodeling) and procedures to conform to the best information technology 
and corporate governance practices. 

Additionally, in 2012 we began implementing an enterprise resourcing planning, or “ERP system”, to replace our commercial and management information systems.  
We contracted through a bidding process the Águas Claras Consortium, currently Consórcio Nascente, which consists of Accenture and Engineering and which will provide 
us with SAP’s ERP system and the Net@suite system.  We estimated that the ERP system would have been implemented in 2014 and the Net@suite in 2015, but during the 
test phase we concluded that some important system functionalities should have been adjusted and exhaustively tested before being implemented in order to minimize risks 
to our business which led us to postpone the implementation to 2016 and 2017, respectively.

29

Manage the current adverse climate conditions and mitigate their negative impact.  Our goal is to consistently meet the needs of our consumers with our services, 
and in 2014 and 2015, we managed to do so despite the water crisis.  In 2014 and 2015, we invested approximately R$730 million to mitigate the impacts of the water crisis 
and provide the São Paulo metropolitan region with better access to water sources, more robust production and transport capacity of treated water and increase treated water 
capacity.  Furthermore, we have planned a series of short-term and medium-term measures that we expect will increase the ability of our immediate water supply to cope 
with  the  water  crisis  and  significantly  improve  future  water  security by  the end  of  the decade.   For  more  information,  see  “—  Business  Overview—The  Current  Water 
Crisis”.

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 as well as in other Brazilian 

states and abroad, while creating shareholder value and strengthening our results of operations and our financial conditions.

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 also includes the States of Minas Gerais, Espírito Santo and Rio de Janeiro, and which is, according to IBGE, the 
most developed and economically active region of Brazil.  The state of São Paulo is located on the Atlantic coast of Brazil and is bordered by the states of Rio de Janeiro 
and Minas Gerais to the north, the state of Paraná to the south and the state of Mato Grosso do Sul to the west.

The state of São Paulo occupies approximately 3.0% of Brazil’s land mass and encompasses an area amounting to approximately 96,000 square miles.  According to 
the SEADE, the state of São Paulo had an estimated total population of 45 million as of December 31, 2015.  The city of São Paulo, capital of the state of São Paulo, had an 
estimated  total population of  11.1  million, with  a total  population  of 21.4 million  inhabitants in  the São  Paulo  metropolitan  region, as  of December 31,  2015.   The  São 
Paulo metropolitan region encompasses 39 municipalities and is the largest metropolitan region in the Americas and the fourth largest metropolitan region in the world, 
according  to  the  United  Nations’  World  Urbanization  Prospects,  2014 Revision,  with  approximately  47%  of  the  total  population  of  the  state  of  São  Paulo  as  of 
December 31, 2015.

According to the most recent data collected by the IBGE, the GDP of the state of São Paulo was approximately R$1.7 trillion in 2013, representing approximately  
32.1% of Brazil’s total GDP, and making it the largest economy of any state in Brazil based on GDP. According to the IBGE, the state of São Paulo is also the leading 
Brazilian state in terms of manufacturing and industrial activity, with a strong position in car manufacturing, pharmaceuticals, computer manufacturing, steel making and 
financial services industries.  The state of São Paulo is the leading export state in Brazil, 
plastics, among other activities, as well as a leading position in the banking and 
according to the Brazilian Ministry of Development, Industry and Foreign Trade (Ministério do Desenvolvimento, Indústria e Comércio Exterior). 

History

Until the end of the nineteenth century, water and sewage services in the state of São Paulo were generally provided by private companies.  In 1875, the Province of 
São Paulo granted a concession for the provision of water and sewage services to Cantareira Water and Sewage Company (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 Cantareira Water and Sewage Company and 
formed the Office of Water and Sewers (Repartição de Água e Esgotos), a government 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 
directly  by  the  municipalities,  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 carry out the administration of public services where the government deems 
that a decentralized administrative and financial structure would be advantageous.

30

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 Water Company of the 
São Paulo metropolitan Region (Companhia Metropolitana de Água de São Paulo), or the “COMASP”, the purpose of which was to provide potable water on a wholesale 
basis for public consumption in the various municipalities of 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 State government created the Superintendence 
of Water and Sewers of the City of São Paulo (Superintendência de Água e Esgoto da Capital), or the “SAEC”, to distribute water and collect sewage in the city of São 
Paulo.  All assets relating to water services previously owned by the Department of Water and Sewers were transferred to the SAEC.  Also in 1970, the State created the 
Basic Sanitation Company of the São Paulo metropolitan Region (Companhia Metropolitana de Saneamento de São Paulo), or the SANESP, to provide sewage treatment 
services for the São Paulo metropolitan region.  All assets relating to sewage services previously owned by the Department of Water and Sewers were transferred to the 
SANESP.  The Department of Water and Sewers was subsequently closed.

On June 29, 1973, pursuant to State Law No. 119/1973, 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).  We were incorporated under the laws of Brazil as 
a limited company (sociedade anônima), for indefinite duration.  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 our company.  The State has 
always  been  our  controlling  shareholder,  as  required  by  State  Law  No. 11,454/2003.   We  have  therefore  been  integrated  into  the  State  governmental  structure  and  our 
strategies have been formulated in conjunction with the strategies of the State Department of Water Resources and Sanitation.  Additionally, a majority of the members of 
our board of directors and our management are appointed by the State Government. 

Our capital expenditure budget is subject to approval by the State legislative chamber.  This approval is obtained simultaneously with the approval of the budget of the 
São Paulo Secretariat for Sanitation and Water Resources (Secretaria de Saneamento e Recursos Hídricos do Estado de São Paulo).  We are also subject to supervision 
from the Court of Audit of the State of São Paulo (Tribunal de Contas do Estado de São Paulo), with regard to our accounting, financial and budgetary activities and our 
operating assets.

We provide water and sewage services directly to a large number of residential, commercial and industrial private consumers, as well as to a variety of public entities, 
in  364  of  the  645  municipalities  in  the  State,  including  in  the  city  of  São  Paulo.   We  also  supply  water  on  a  wholesale  basis  to  5  municipalities  in  the  São  Paulo 
metropolitan region in which we do not operate water distribution systems, and 4 of these municipalities also utilize our sewage treatment services.  According to the 14th
edition of the Pinsent Masons Water Yearbook (2012-2013), the most recent edition released of this study, we are the 5th largest water and sewage service company in the 
world in terms of number of clients.  

In 1994, we were registered with the CVM as a publicly-held company and are therefore subject to the CVM’s rules, including those relating to the periodic disclosure 

of extraordinary facts or relevant events.  Our common shares have been listed on the BM&FBOVESPA under the ticker “SBSP3” since June 4, 1997.

In 2002, we joined the Novo Mercado segment of the BM&FBOVESPA, which is the listing segment in Brazil with the highest corporate governance requirements.  In 
the same year, we registered our common shares with the Securities and Exchange Commission, or SEC, and started trading our shares in the form of ADR – level III on 
the New York Stock Exchange, or NYSE.

31

In 2004, the State of São Paulo carried out a secondary offer of common shares of our company in the Brazilian and international markets.

In December 2007, Law No. 1,025/2007, which provided for the creation of regulatory agencies for the supervision of water and sewage services, created ARSESP, the 

regulatory agency that regulates and supervises the services we provide.

Corporate Organization

We currently have six management divisions, each of which is supervised by one of our executive officers.

Our board of directors allocates responsibilities to our executive officers following an initial proposal made by our Chief Executive Officer, in accordance with our 
bylaws.  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,  including  the  coordination,  evaluation  and  control  of  all  functions  related  to  the  Chief  Executive  Officer’s  office  and  staff, 
integrated planning, business management and corporate organization, communication, audit, regulatory affairs and ombudsman.  The Chief Executive Officer represents 
our company before third parties and certain powers can be granted to attorneys-in-fact.  The executive officers described below report to the Chief Executive Officer:









the  Corporate  Management  Officer,  who  is  responsible  for  marketing  (commercial  processes),  human  resources,  quality  and  social  responsibility,  legal 
affairs, information technology, asset management, supplies, contracts and new business ventures;

the  Chief  Financial  and  Investor  Relations  Officer,  who  is  responsible  for  financial  planning,  costs  and  tariffs,  raising  capital  and  allocating  financial 
resources to divisions of our company, conducting capital markets and other debt incurrence transactions and managing debt levels, controller, accounting, 
corporate governance and investor relations, is part of the committee on regulatory matters and is responsible for implementing the committee’s guidelines 
with the support of our division responsible for regulatory matters;

the  Technology,  Enterprises  and  Environment  Officer  is  responsible  for  environmental  management,  technological  and  operational  development,  quality 
control of water and sewage, the development, coordination and execution of special investment programs, projects, research and innovation; and

the Chief Operating Officer for the São Paulo metropolitan region Division and the Chief Operating Officer for the Regional Systems Division, who are 
responsible for managing the operation, maintenance, execution of planning and works for water and sewage supply systems (including for the services that 
we  provide  on  a  wholesale  basis),  sales  and  call  center  services,  and  have  overall  responsibility  for  the  financial  and  operational  performance  of  their 
divisions.  Moreover, the Chief  Operating Officers are part of the committee on regulatory matters and implemented the committee’s guidelines in their 
respective  management  teams  with  the  support  of  our  division  on  regulatory  matters.   The  Chief  Operating  Officers  are  also  responsible  for  sanitation 
advisory services to independent municipalities and for mediation and negotiation with communities and local governments, aimed at aligning our interests 
with the interests of our clients.  

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 sustain 
water  security,  meet  the  growing  demand  for  water  and  sewage services  in  the  state  of São  Paulo  and improve  the  overall  environmental  impact  of  our  activities.   Our 
capital expenditure program has four specific goals with respect to the municipalities we serve:  

(I).

to continue to meet the maximum demand for treated water;

(II).

to expand the percentage of households connected to our sewage system;

32

(III).

to increase the treatment of sewage collected; and

(IV).

to increase operating efficiency and reduce water loss. 

We have budgeted investments in the total amount of R$12.5 billion from 2016 through 2020.  We invested R$3.5 billion, R$3.2 billion and R$2.7 billion in 2015, 

2014 and 2013, respectively. 

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

Water
Sewage Collection
Sewage Treatment
Total

2016

2017

Planned Capital Expenditures
2019

2020

2018

(in millions of reais)

1,170
466
164
1,800

1,208
917
429
2,554

1,119
1,044
571
2,734

852
1,040
704
2,596

935
1,061
771
2,767

Total

5,284
4,528
2,639
12,451

Our capital expenditure program from 2016 through 2020 will continue to focus on achieving our targets by making regular investments to maintain and expand our 
infrastructure and to reduce water loss in the 364 municipalities we served as of December 31, 2015 and in the municipality of Santa Isabel, with which we signed a water 
contract that became effective in 2016.  

The recent drought has prompted a continuous reduction in the volume of water billed and thus a reduction in revenue.  Due to the drought and the need to prioritize 
construction  to  mitigate  the  effects  of  the  water  crisis  and  increase  water  security  in  the  Metropolitan  Region  of  São  Paulo,  in  2015  we  had  to  adjust  our  investment 
programs for subsequently modify the scheduled amounts of investments for the next few years.  

Main Projects of Our Capital Expenditure Program 

The following is a description of the main projects in our capital expenditure program. 

Metropolitan Water Program 

Demand for our water services has grown steadily over the years in the São Paulo metropolitan region and has at times exceeded the capacity of our water systems.  On 
account  of  the  high  demand,  prior  to  September 1998,  a  portion of  our  customers  in  this  region  received  water  only  on  alternate days  of  the  week.   We  refer  to  this  as 
“water rotation”.  In order to address this situation, we implemented the Metropolitan Water Program (Programa Metropolitano de Água) to improve regular water supply 
to the entire São Paulo metropolitan region.  This program terminated in 2000 and the water rotation measure was eliminated, but still we have maintained our investment 
plans for the region.  

Since 2000, the Metropolitan Water Program has increased the production capacity in 8.1 m³/s, 5 m³/s of which can be attributed to the Public Private Partnership, or 

“PPP”, conducted in the Alto do Tietê concluded in 2011, and 2.1 m³/s of which can be attributed to increased production in Guarapiranga System, concluded in 2015.

Aiming to improve the provision of water to the São Paulo Metropolitan Region, we plan on increasing treated water production capacity by approximately 7 m³/s until 
2018, with an emphasis on the construction of the São Lourenço System, which shall increase production capacity by approximately 6.0 m³/s.  By the end of 2017, we shall 
also conclude the interconnection of the Jaguari (part of the Paraíba do Sul Basin) and Atibainha (part of the PCJ Basin) reservoirs.

In 2015, we invested approximately R$378.1 million in the Metropolitan Water Program.  Between 2016 and 2020, we predict investments of over R$1.2 billion in the 

Metropolitan Water Program, with a special emphasis on the interconnection of the Jaguari and Atibainha.

Interconnection of Jaguari and Atibainha Reservoirs

33

We are interconnecting the Jaguari and Atibainha reservoirs, which is a strategic and priority works project to guarantee secure access to water for the metropolitan 
region of São Paulo.  With investments of R$555 million in 2016 and 2017, this construction will allow the transfer of up to 8.5 m³/s and an average 5.13 m³/s of water 
from the Jaguari reservoir of the Paraíba do Sul Basin to the Atibainha reservoir of the Cantareira System, the largest system that provides water to the metropolitan region 
of São Paulo.  In the future, the transfer of water shall also work in the opposite direction, from the Atibainha reservoir to the Jaguari reservoir, optimizing the reservation 
capacity of both reservoirs, and benefitting the population of the Paraíba Valley.  The construction work on the interconnection began in February 2016 and is expected to 
be concluded in 2017.

Other emergency actions to increase the São Paulo metropolitan region’s water security supply are also being implemented.  For more information, see “—Business 

Overview—The Current Water Crisis”.

São Lourenço Project  

The metropolitan region lacks water sources, which requires us to obtain water from increasingly distant sources.  In order to address this situation, we are, under a PPP 
contract, currently developing a new supply system called São Lourenço, which will expand our production capacity by 6.4 m3/s and should be able to benefit a population 
of almost 1.5 million people.  The PPP contract was executed in August 2013 and construction began in April 2014.  The project is being undertaken by Sistema Produtor 
São Lourenço S.A., which is a special purpose company controlled by the construction companies Camargo Corrêa Construtora S.A. and Andrade Gutierrez S.A.  The new 
system is expected to begin operation in late 2017.  For more information on Public Private Partnerships, see “—Business Overview—Public Private Partnerships”. 

The contract amounts to approximately R$6.0 billion (the estimated amount monetarily restated through December 31, 2015 is approximately R$7.5 billion) and it has 
a 25-year term, four years of which will be dedicated to the construction, while the other 21 years will be dedicated to service delivery. These services include the operation 
and  maintenance  of  the  sludge  treatment  system  of  the  water  treatment  station  and  disposal  of  the  waste  thus  generated;  electromechanic  and  civil  maintenance  of  the 
untreated water pumping stations, of the water treatment station and the untreated water pipeline; preservation and cleaning, surveillance and property security.

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.  In an effort to reverse 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  carried  out  the  first  phase  of  the  program  between  1992 and  1998,  when  we  completed  the  construction  of  three  additional  sewage  treatment  facilities.   This 

involved total investment of US$1.1 billion financed by the Inter-American Development Bank, or “IADB”, Caixa Econômica Federal and us.

The second phase of the project, which was carried out from 2000 through 2008, continued to expand and optimize the sewage system in the São Paulo metropolitan 
region, focusing primarily on improvements to expand the delivery of raw sewage to the sewage treatment facilities that were built in the first phase.  Upon the conclusion 
of the second phase of the project in 2008, we were able to collect approximately 5,000 liters of raw sewage per second and send it to the five sewage treatment plants in 
our  integrated  system  for  treatment.  Total  investments  in  this  phase  amounted  to  approximately  US$500 million,  financed  by  the  IADB,  and  BNDES,  directly  and 
indirectly

The first and second phases of the Tietê Project contributed to an increase from 70.0% to 84.0% in the sewage collection rate and an increase from 24.0% to 70.0% in 
the treatment of sewage collected in the São Paulo metropolitan region.  As a result, the sewage collection system covered a total of 15.8 million people (5.1 million more 
than the number of people served when the Tietê Project was initiated), and the sewage treatment system covered 11.1 million people (8.5 million more than the number of 
people served when the Tietê Project was initiated).  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 16 cubic meters of sewage per second. 

34

The third phase of the Tietê Project, initiated in 2010, aims to expand collection levels to 87.0% and sewage treatment levels to 84.0% in the São Paulo metropolitan 

region.  The total estimated cost of the third phase is approximately US$2 billion, financed by the IADB, BNDES, Caixa Econômica Federal, and us.

Following completion of the third phase of the Tietê Project, the sewage collection system, will serve an additional 1.5 million people and the sewage treatment system 

will serve an additional 3.0 million people.  We have invested approximately R$1.9 billion in the third phase, R$355.9 million of which was invested in 2015. 

Continuing our  efforts to  eliminate the  disposal of in natura  sewage  in  the  bodies of  water  of  the  São  Paulo  metropolitan  region near the  areas we serve, we  have 

structured the fourth phase of the Tietê Project.  The total estimated cost of this phase is approximately US$2 billion.

We continued to work on items from the third phase and began in 2014 to implement measures related to the fourth phase, which resulted in approximately R$377.9 

million in total investments in 2015.

Corporate Program for Reduction of Water Loss 

The objective of the Corporate Program for Reduction of Water Loss (Programa Corporativo de Redução de Perdas de Água) is to reduce water loss by efficiently 
integrating and expanding existing initiatives in our business units.  This program has a 12-year term that began in 2009.  We have invested R$3.4 billion in this project so 
far, including R$525.9 million invested in 2015, and we anticipate total investments of approximately R$5.5 billion throughout the term of the program.  Funding for the 
program will come from our own resources as well as from credit facilities provided by JICA, Caixa Econômica Federal and BNDES.  

The program aims to reduce the incidence of water loss from 436 liters per connection per day in December 2008 to 258 liters per connection per day by 2020, which is 
equivalent to reducing the Water Billed Loss Index from 27.6% in December 2008 to 18.2% in 2020 and to reducing the Water Metered Loss Index (based on measured 
consumption) from 34.1% in December 2008 to 27.6% in 2020.  In 2015, our water loss measured 258 liters per connection per day.  In 2015, our Water Billed Loss Index 
was 16.4% and our Water Metered Loss Index averaged 28.5%.

It is worth noting that the reduction in the water loss indicators in 2015 was due to the intensification of pressure management in the supply systems, an operational 
practice  designed  to  manage  the  current  water  shortage  by  reducing  its  impact  on  the  supply  of  water  available  to  the  population.   This  operational  practice  has  been 
implemented  to  serve  the  current  temporary  and  atypical  situation. We  note  that,  when   the  water  supply  system  returns  to  being  operated  as  it  was  prior  to  the  water 
shortage, there shall be an increase in the pressure in the distribution network which might make it possible for there to be an increase in the loss indicators.

For more information on the measure we have adopted to confront the water crisis, see “—Business Overview—The Current Water Crisis”.

Water Source Program

The Water Source Program (Programa Mananciais), created in 2009, consists of various projects that focus on the preservation and improvement of water sources in 
the  São  Paulo  metropolitan  region,  especially  in  the  Guarapiranga  and  Billings  reservoirs.   The  program’s  investments  are  directed  mostly  towards  the  creation  of 
infrastructure to collect sewage and transport it to treatment plants in order to reduce the discharge of effluent into water sources.  The program also includes the protection 
of green spaces and the urbanization of shantytowns (favelas) and is expected to directly benefit 58,000 families.  In 2015, R$84.2 million was invested in the Water Source 
Program.  

Clean Stream Program

The  Clean  Stream  Program  (Programa  Córrego  Limpo),  an  agreement  between  the  State,  acting through  our  company, and the  municipality  of  São  Paulo,  aims  to 
decontaminate urban streams in the city of São Paulo by eliminating the discharge of sewage into streams and rainwater runoff routes, cleaning streams and banks, and 
removing and relocating low-income households located on the banks of streams.  

35

Since 2007, 148 urban streams have been decontaminated, benefiting approximately 2.2 million people.  In 2015, we had invested R$3.8 million in the Clean Stream 

Program.  Part of the investment related to the Tietê Program benefit the Clean Stream Program.

The effects and the consequences of the drought, as well as the difficulty of the state government to remove and relocate low-income households in risk areas, led us to 
revise the goals of this program.  We are currently negotiating with the municipality of Sao Paulo on new goals for 2017 and beyond, taking into account the future budgets 
of the institutions involved.

Regional Systems Investment Programs 

We currently have a number of projects in progress and planned for our Regional Systems.  These relate to the abstraction of water as well as to the collection, removal 

and disposal of sewage.  The main projects of the Regional Systems are the following:

Clean Wave Program 

The main goals of the Clean Wave Program (Programa Onda Limpa) are to improve and expand the sewage systems in the municipalities comprising the Baixada 
Santista metropolitan region on the southern coast of the state, increasing the sewage collection rate to 95% and treating 100% of this collected sewage, thereby improving 
the bathing water quality at 82 beaches in the region by the end of the decade.  This project is being carried out in two phases, the first of which has already begun and the 
second of which is in the planning phase.  The first phase, which aims to increase the sewage collection rate to 88%, is expected to be completed by 2020.  The funds will 
come from our own resources  as well as from  loan  agreements entered  into with  JICA and from  the  Government  Severance  Indemnity Fund for Employees (Fundo  de 
Garantia por Tempo de Serviço), or “FGTS”.

In  2015,  we  invested  R$172  million  in  the  Clean  Wave  Program.   As  a  result  of  our  investments,  sewage  collection  in  the  Baixada  Santista  metropolitan  region 

increased since the beginning of the program has increased from 53% in 2007 to 71% in 2015.  All of the sewage that was collected was also treated.

Towards the goal of increasing sewage collection, and given that we have already installed sewage networks, we are now prioritizing strengthening the connection of 
our  customers  to  the  sewage  network.   As  of  December 31,  2015,  we  completed  approximately  94.6  thousand  sewage  connections.   By  2018,  we  will  complete  an 
additional 23 thousand sewage connections.

Under the program’s first phase, we plan to execute by 2020 the expansion and renovation of the Oceanic Sewage Disposal System in the city of Praia Grande, located 

in the Baixada Santista metropolitan region, is expected to be concluded by 2019.

The second phase of the Clean Wave Program is in planning for the period between 2019 and 2025.  We estimate investments of approximately R$1.8 billion in order 
to enlarge and implement sewage collection and treatment systems and complete 57 thousand new connections.  The goal of the second phase is to provide full coverage of 
sewage services in the Baixada Santista metropolitan region. 

Northern Coast Clean Wave Program 

The Northern Coast Clean Wave Program (Programa Onda Limpa Litoral Norte) aims to expand the collection and treatment of sewage on the northern coast of the 
state of São Paulo, intending to benefit 800 thousand people, including the local population as well as tourists that visit the region each year.  The program aims to increase 
the sewage collection rate in the region from 36.0% in 2008 to 85.0% in 2016, thereby improving the health and well-being of the population and stimulating economic 
development through an increase in tourism.  As of 2015, the sewage collection rate was 56%.  In 2015, we invested R$7 million in this Program.    

Coastal Water Program 

The  Coastal  Water  Program  (Programa  Água  no  Litoral)  combines  various  long-term  activities  to  expand  water  production  capacity  in  the  Baixada  Santista 
metropolitan region and the southern coast of the state of São Paulo.  The program aims to benefit approximately three million people, including both the local population 
and tourists.  It aims to increase the level of reliability of the local systems, eliminating existing and potential deficiencies and irregularities in the water supply.  Through 
this program we aim to increase the availability of treated water and improve the quality of water available to the population.  The fund will come from our own funds and 
financing from Caixa Econômica Federal.

36

During the first phase of this program, we have focused mainly on increasing water production in order to satisfy demand and improve water quality in the Baixada 
Santista metropolitan region.  In order to reach this goal, we built two water treatment stations, which started operations in 2013:  Mambu/Branco, with water treatment 
capacity of 1.6 m³/s, and Jurubatuba, with water treatment capacity of 2 m³/s. 

In  2015,  we  invested  R$68.3  million  in  the  Coastal  Water  Program.   The  second  phase  of  the  program  is  in  planning,  with  the  goal  of  increasing  even  further  the 
availability of treated water for the local population and tourists and improving the quality of the water available to the population in the Baixada Santista metropolitan 
region in the coming years. 

Other Policies and Programs

Nossa Guarapiranga 

In December 2011, we launched the Nossa Guarapiranga project, the main objective of which is to improve the water quality in the Guarapiranga basin, a water source 
for the São Paulo metropolitan region.  The basin serves one million people directly in the areas near Guarapiranga and indirectly serves a further two million people who 
consume the water from the basin.  Our actions in this project were carried out on three fronts: (i) we installed drains to collect residue from rivers in the Guarapiranga 
basin;  (ii)  we  have  developed  diagnosis  and  control  services  for  the  withdrawal  of  water  plants  that  obstruct  water  extraction;  and  (iii)  we  have  removed  and  disposed 
deposit garbage at the bottom of the basin’s dam.

Pró-Conexão 

In 2012, the State of São Paulo approved a project to subsidize connections to the sewage system for low-income families.  Initially intended to last 8 years, the project 
involves capital expenditures of up to R$349.5 million of which 80% will be provided by the State government and 20% by us.  In this period we expect that this program 
will create 192 thousand new sewage connections benefiting approximately 800 thousand people.  

As of December 2015 we completed approximately 23 thousand sewage connections under the Pró-Conexão program.  We believe that this program will increase the 
efficiency  of  our  other  sewage  collection  programs  and  help  improve  water  quality  in  the  region’s  rivers  and  basins  as  well  as  improve  quality  of  life  for  low-income 
families.

For more information see “Item 7.B. Major Shareholders and Related Party transactions—Related Party transactions—Agreements with the State

Water is Life 

The Water is Life program, established in November 2011, aims to provide water and sewage services to low-income and isolated communities in the regions of Alto 
Paranapanema and Vale do Ribeira.  We have expected to cover 81 communities in 30 municipalities, benefiting approximately 15 thousand people.  In this project we are 
responsible for supplying water and for offering technical support to the municipalities, which with financing from the state government, will include installing Individual 
Sanitary Units (Unidades Sanitárias Individuais), a technology better suited for isolated communities.  As of December 31, 2015, we concluded projects in 16 communities 
and we are currently working in 8 others.  We executed more than 83 kilometers of networks and pipelines and we began to operate 24 new wells in these communities.  

A large part of this work was executed by our own personnel, which considerably reduced the need for investment.

B. Business Overview

37

Our Operations

As of December 31, 2015, we provided water and sewage services to 364 municipalities in the state of São Paulo under concession agreements, program agreements, 
other  forms  of  legal  arrangements  or  without  formal  agreements.   We  also  supply  treated  water  on  a  wholesale  basis  to  5  municipalities  located  in  the  São  Paulo 
metropolitan region and urban conurbations.  The majority of these concessions have 30-year terms.  Due to court orders, we temporarily suspended our services in 3 other 
municipalities (Cajobi, Iperó e Macatuba).  For more information, see “Item 8.A. Financial Statements and Other  Financial Information—Legal  Proceedings”.  Between 
January 1, 2007 and December 31, 2015, we entered into agreements with 278 municipalities (including our services agreement with the city of São Paulo) in accordance 
with  the  Basic  Sanitation  Law,  of which  4  were  entered  into  in  2015.   As  of  December 31,  2015,  these  278  municipalities  accounted  for  78.6%  of  our  gross  operating 
revenues (including revenues relating to the construction of concession infrastructure).  In addition to the contracts that have 30-year terms, the municipalities entered into 
cooperation contracts with the State of São Paulo, delegating the regulation and monitoring of the provision of services to ARSESP.  As of December 31, 2015, 53 of our 
agreements or concessions had expired but we continued to provide water and sewage services to these municipalities and were in negotiations with these municipalities to 
execute program agreements to substitute the expired concessions.  From January 1, 2016 through 2030, 36 concessions will expire.

For more information on laws and regulations related to our concession operations, see “Item 4.B. Business Overview—Government Regulations Applicable to our 

Contracts”. 

Description of Our Activities

As set forth in Article 2 of our bylaws, we are permitted to render basic sanitation services with the goal of providing basic sanitation services to the entire population 
in  the  municipalities  where  we  conduct  our  activities  without  harming  our  long-term  financial  sustainability.   Our  activities  comprise  water  supply,  sanitary  sewage 
services,  urban  rainwater  management  and  drainage  services,  urban  cleaning  services,  solid  waste  management  services  and  related  activities,  including  the  planning, 
operation,  maintenance  and  commercialization  of  energy,  and  the  commercialization  of  services,  products,  benefits  and  rights  that  directly  or  indirectly  arise  from  our 
assets, operations and activities.  We are allowed to act in a subsidiary form in other Brazilian locations and abroad.  See “—Government Regulations Applicable to Our 
Contracts—Establishment  of  ARSESP”.   For  a  description  of  our  operating  segments  please  see  Note 24  to  our  financial  statements  as  of  and  for  the  year  ended 
December 31, 2015.

Operating segments are presented in our annual report in a manner consistent with the internal reporting provided to management, comprised of the board of directors 
and the board of executive officers, pursuant to IFRS 8.  Under Brazilian GAAP, prior to our conversion to IFRS, the financial information for construction services was 
not separately presented and construction costs related to concessions were capitalized within property, plant and equipment.  As a result, our management did not review 
the results of this business.  Following our conversion to IFRS, our management decided to continue to exclude the construction results from the management reporting of 
our revenues and expenses, thus not basing his decisions on discrete financial information for that business.  The characteristics described in paragraph 5(b) of IFRS 8 for 
separate operating segments are thus not fulfilled for this particular business.  Nonetheless, after our conversion to IFRS and for IFRS financial statement purposes only, we 
started to record such results separately as construction revenue and costs under IFRIC 12.  Although such information is available discretely, however, it is not analyzed 
by our management as such and is not the basis for operational decisions.

We set forth below a description of our activities.

Wholesale Operations

Wholesale Water Services

We provide water services on a wholesale basis to 5 municipalities located in the São Paulo metropolitan region (Guarulhos, Mauá, Mogi das Cruzes, Santo André e 
São  Caetano  do  Sul).   Agreements  to  provide  water  services  on  a  wholesale  basis  must  comply  with  the  Basic  Sanitation  Law,  which  designates  these  services  as 
“interdependent activities” and regulates each stage of the service.  The law requires that the service be supervised by an independent agency, stipulates registration of the 
cost of the service, and requires assurance of payment among the several service providers in order to continue the provision of the services, in accordance with the rules to 
be published by ARSESP.  Our agreements currently comply with the provisions of the Basic Sanitation Law.  In 2015, the revenues from wholesale water services were 
R$66.6 million.  For more information, see “Item 3.D. Risk Factors—Risks Relating to Our Business—We may face difficulties in collecting overdue amounts owed to us 
by municipalities to which we provide water on a wholesale basis and municipal government entities”.

38

Wholesale Sewage Services

Currently, we provide sewage services on a wholesale basis to the municipalities of Mauá, Mogi das Cruzes, Santo André e São Caetano do Sul.  We also provided 
these  services  to  the  municipality  of  Diadema,  but  in  March  2014,  we  executed  a  contract  to resume  direct  supply  of  water  and sewage  services  to  the  municipality  of 
Diadema.   Our  agreement  with  Santo  André  for  these  services  was  executed  with  the  intervention  of  the  Public  Prosecution  Office.   Our  agreements  with  the  other 
municipalities  resulted  from  our  environmental  efforts  and  municipal  authorities’  awareness  of  environmental  issues.   Through  these  agreements,  in  2015  we  treated 
approximately 30.6 million cubic meters of sewage from these municipalities.  We believe this illustrates our commitment to social and environmental responsibility.  In 
2015, our revenues from wholesale sewage services were R$26.5 milllion. 

In December 2008, we entered into a five-year agreement for the collection and treatment of 20% of the sewage generated by the city of Guarulhos.  We have not yet 
started to provide these services, and such services will only commence when the works on linking the Guarulhos sewage to our sewage system are finalized.  These works 
are the responsibility the Guarulhos sanitation company.

Water Operations

Our supply of water to our customers generally involves abstraction of water from various sources, subsequent treatment and distribution to our customers’ premises.  
In 2015, we produced approximately 2,466.6 million of cubic meters of water.  The São Paulo metropolitan region (including the municipalities to which we supply water 
on a wholesale basis) currently is, and has historically been, our core market, accounting for approximately 67.9% of water invoiced by volume in 2015.

The reduction in the volume of water produced in 2015, as compared to 2014, is a result of the water crisis that affects our area of operation.  For more information, see 
“Item 3.D. Risk Factors—Risks Relating to Our Business:  The measures we took to mitigate the effects of the drought resulted in a significant decrease in the volume of 
water billed and revenues from services we provide, which had a material adverse effect on our company and that may worsen if the drought escalates in severity” and 
“—The Current Water Crisis”.  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

2015

Year ended December 31,
2014
(in millions of cubic meters)

2013

1,679.4
787.2
2,466.6

1,084.3
215.5
613.9
1,913.7

2,001.1
839.3 
2,840.4 

1,172.4
256.8
639.4
2,068.6

2,220.6
832.0
3,052.6

1,206.9
299.0
628.1
2,134.0

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 

Loss”.  In addition, we do not invoice: 







water discharged for periodic maintenance of water transmission lines and water storage tanks;

water supplied for municipal uses such as firefighting;

water consumed in our own facilities; and

39



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

Seasonality

Although seasonality does not affect our results in a significant way, in general, higher water demand is observed during the summer and lower water demand during 
the winter.  The summer coincides with the rainy season, while the winter corresponds to the dry season.  The demand in the coastal region is increased by tourism, with the 
greatest demand occurring during the Brazilian summer holiday months.

Water Resources 

We can abstract water only to the extent permitted by DAEE pursuant to water right granted by it.  Depending on the geographic location of the river basin or if the 
the  approval  of  ANA  a  federal  agency  under  the  Ministry  of  the  Environment  is  required.   We  currently  abstract 
river  crosses  more  than  one  state  (federal  domain), 
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  the  flow  from  nearby  rivers,  or  by  a  combination  of  both  methods.   For  more  information  on  water  usage  regulation,  see 
“—Environmental Matters—Water Usage”. 

In order to supply water to the São Paulo metropolitan region, we rely on 20 reservoirs of non-treated water and 254 reservoirs of treated water, which are located in 
the areas under the influence of the eight water producing systems comprising the interconnected water system of the São Paulo metropolitan region.  The total capacity of 
the water sources available for treatment in this area is 75.5 m³/s, not including an additional 6.5 m³/s resulting from the emergency construction work conducted by us in 
2014  and  2015.   Total  current  installed  capacity  is  75.8  m³/s  and  can  be  distributed  to  the  São  Paulo  metropolitan  region.   Average  verified  production  for  the 
interconnected water system of the São Paulo metropolitan region was 52.0 m³/s during 2015.  The Cantareira, Guarapiranga and Alto Tietê systems produce 79.0% of the 
water we distributed in the São Paulo metropolitan region in 2015.

In  2015,  the  Cantareira  system  accounted  for  27.1%  of  the  water  that  we  supplied  to  the  São  Paulo  metropolitan  region  (including  the  municipalities  to  which  we 
supplied  water  on  a  wholesale  basis),  which  represented  67.3%  of  our  gross  operating  revenues  (excluding  revenues  relating  to  the  construction  of  concession 
infrastructure) for the year.  For more information, see “Item 3.D. Risk Factors—Risks Relating to Our Business—We are exposed to risks associated with the provision of 
water and sewage services”.

For further information on droughts see “Item 3.D Risk Factors—Risks Relating to Our Business—The measures we took to mitigate the effects of the drought resulted 
in a significant decrease in the volume of water billed and revenues from services we provide, which had a material adverse effect on our company and that may worsen if 
the drought escalates in severity” and “—The Current Water Crisis”.  

Current river basin committees are authorized to charge both for water usage and the dumping of sewage into water bodies.  We participate in the decentralized and 
integrated  management  of  water  resources  established  by  the  National  Policy  on  Water  Resources.   We  are  represented  by  158  employees  on  the  21  State  River  Basin 
Committees and the four Federal Committees that act in the state of São Paulo and in the National and State Councils on Water Resources.  

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

Water production system:
Cantareira 
Guarapiranga 
Alto Tietê 
Rio Claro 
Rio Grande (Billings reservoir) 
Alto Cotia 
Baixo Cotia 
Ribeirão da Estiva 
Total

(1)   Average of the twelve months ended December 31, 2015, 2014 and 2013.

40

2015

(1)

Production Rate
2014

2013

(in cubic meters per second)

14.1
14.9 
12.1
3.9
5.0
0.9
1.0
0.1
52.0

23.7
14.2
13.8
3.9
4.8
0.9
0.8
0.1
62.2

32.6
13.6
12.1
3.9
4.8
1.2
0.8
0.1
69.1

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.  In the cities 
of the interior region of São Paulo, our principal source of water consists of surface water from nearby rivers and from wells.  For additional information on the Alto Tietê 
system, see “Item 7.B. Related Party Transactions—Transactions with the State of São Paulo—Agreements with the State”.  In the interior cities of São Paulo, our principal 
source of water consists of surface water from nearby rivers and from wells.

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 installed 226.0 thousand, 231.6 thousand and 226.4 thousand, new water connections in 2015, 2014 and 2013, respectively.  Throughout 2014 and 2015, we 
adopted various measures to mitigate the current water crisis, which allowed us to provide water to the population despite the decreased water availability.  We were able 
to balance supply and demand  for  water  in  the São  Paulo metropolitan region,  as a result  of:   (i) using  treated water  from  other production  systems to serve consumers 
originally supplied by the Cantareira system; (ii) to offer discounts (bonus) to consumers that use below average amounts of water, compared to average consumption; (iii) 
reducing  pressure  in  the  water  distribution  lines  in  order  to  decrease  leakage;  (iv)  adjusting  the  volume  of  treated  water  sold  to  municipalities  that  operate  their  own 
distribution network; and (v) using pumps in order to extract water located below the intakes of the Cantareira system, from the so-called “technical reserve”.  For more 
information on the effects of the drought on the water supply, see “—The Current Water Crisis”. 

The interconnected water system of the São Paulo metropolitan region serves 30 municipalities, of which 25 are operated directly by us under this system.  Through 
this  system,  we  serve  the  other  5  municipalities  on  a  wholesale  basis,  whereas  distribution  is  the  responsibility  of  other  companies  or  departments  related  to  each 
municipality.

In  order  to  reach  the  final  customer,  the  water  is  stored  and  transported  through  a  complex  and  interconnected  system.   This  water  system  requires  permanent 

operational supervision, engineering inspection, maintenance, and quality monitoring and measurement control.

To ensure the continuous provision of regular water supply in the São Paulo metropolitan region, we intend to invest R$4.3 billion from 2016 to 2020 to increase our 
water production and distribution capacities as well as to improve the water supply systems.  In 2015, our total investment in water supply systems amounted to R$2.2 
billion, of which R$1.8 were invested in the São Paulo metropolitan region.

Water Treatment

We treat all water at our water treatment facilities prior to dispatching it to our water distribution network.  We operate 235 treatment facilities, of which 8 are a part of 
the Metropolitan Production System—located in the São Paulo metropolitan region and account for approximately 68% of all water we produced in 2015.  The type of 
treatment used depends on the nature of the source and quality of the untreated water.  For example, water abstracted from rivers requires more treatment than water drawn 
from groundwater sources requires.  All of the water we treat receives fluoridation treatment.

Water Distribution

We  distribute water  through  our  own networks  of water  pipes and water  transmission  lines, ranging in  size  from 2.5 meters to  75 millimeters in  diameter.  Storage 

tanks and pumping stations regulate the volume of water flowing through the networks in order to maintain adequate pressure and continuous water supply.  

41

The following table sets forth the total number of kilometers of water pipes and water transmission lines and the number of connections in our network as of the dates 

indicated:

Water distribution pipes and water transmission lines (in kilometers)
Number of connections (in thousands) 

As of December 31,

2015

2014

2013

71,705
8,420

70,800
8,210

69,619
7,888

More than 90% of the water pipes in our water distribution network are made of cast iron or polyvinylchloride, or PVC.  Distribution pipes at customers’ residences 

typically are made from high-density polyethylene tubing.  Our water transmission lines are mostly made of steel, cast iron or concrete.

As  of  December 31,  2015,  our  water  distribution  pipes  and  water  transmission  lines  included:   (i)  37,448  kilometers  in  the  São  Paulo  metropolitan  region;  and 

(ii) 34,257 kilometers in the Regional Systems. 

As of that date, we had 387 storage tanks in the São Paulo metropolitan region with a total capacity of 2.1 million cubic meters, and 1,959 storage tanks in the Regional 
Systems.   Furthermore,  we  had  210  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 transmission lines that require maintenance are cleaned and their lining is replaced.  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 water transmission lines in the São Paulo metropolitan region to be adequate 
as of the date of this annual report.  Due to age, external factors such as traffic, the dense population, and commercial and industrial development, water pipes and water 
transmission lines in the São Paulo metropolitan region are somewhat more susceptible to degradation than those in the Regional Systems.  To counter these effects, we 
have  a  maintenance  program  in  place  for  water  pipes  and  water  transmission  lines  that  is  intended  to  address  anticipated  fractures  and  clogs  due  to  brittleness  and 
encrustation, and to help ensure water quality in the region.  

The new customers whose water pipes are more than 20 meters away from the water transmission lines are responsible for covering part of the costs of connecting to 
our water distribution network. They must cover the costs of connecting to the network from the customer’s premises, including costs of purchasing and installing the water 
meter and related labor costs.  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.

The following table sets forth projected new water connections for the periods indicated in thousands:  

São Paulo metropolitan region 
Regional Systems 
Total

Water Loss

2016

2017

2018

2019

2020

2021

2016 – 2021

100
72
172

95
69
164

97
67
164

92
66
158

92
66
158

92
66
158

568
406
974

in thousands

The difference between the volume of water produced and the volume of water invoiced generally represents both physical and non-physical water loss.  

The Water Billed Loss Index represents the quotient of (i) the difference between (a) the total volume of water produced minus (b) the total volume of water invoiced 

plus (c) the volume of water excluded from our calculation of water loss, divided by (ii) the total volume of water produced.  

The  Water  Metered  Loss  Index  represents  the  quotient  of  (i)  the  difference  between  (a)  the  total  volume  of  water  produced  minus  (b)  the  total  volume  of  water 

measured minus (c) the volume of water that we exclude from our calculation of water loss, divided by (ii) the total volume of water produced.

42

The  Water  Loss  per  Connection  per  day  measured  in  liters  per  connection  per  day  represents  the  quotient  of  (i) the  average  annual  water  loss,  divided  by  (ii)  the 

average number of active water connections multiplied by the number of days of the year.  This calculation method is based on worldwide market practice for the sector.

We  exclude  the  following  from  our  calculation  of  water  loss:   (i) water  discharged  for  periodic  maintenance  of  water  transmission  lines  and  water  storage  tanks; 
(ii) water  supplied  for  municipal  uses  such  as  firefighting;  (iii) water  we  consume  in  our  facilities;  and  (iv) estimated  water  loss  related  to  the  supply  of  water  to 
shantytowns (favelas).

Among the principal indicators utilized to measure rates of water loss are the following:







Water Billed Loss Index (WBLI), in %; 

Water Metered Loss Index (based on metered consumption) (WMLI) in %; and

Water Loss per Connection, (TLDC) in liters per connection per day.

These indicators are calculated by applying the following formulas:

WBLI =

WMLI =

TLDC =

Where:

Vproduced – (Vinvoiced + Vused)
Vproduced

Vproduced – (Vmeasured + Vused)
Vproduced

Vproduced – (Vmeasured + Vused)
Nconnection x No. of days of a given period

Vproduced:  corresponds to the volume of water produced at a given period;

Vbilled:  corresponds to the volume of water billed at a given period;

Vmeasured:  corresponds to the volume of water measured at a given period;

Vused:  corresponds to the volume of water used for operational, public, private and social needs (supply shantytown areas) at a given period; and

Nconnections:  corresponds to the average number of active water connections.

Using  this  calculation  method,  as  of  December 31,  2015,  we  experienced  277  liter/connection  per  day  of  water  loss  in  the  São  Paulo  metropolitan  region  and  230 
liter/connection per day in the Regional Systems, averaging 258 liter/connection per day.  We have a Corporate Program for Reduction of Water Loss in place that aims to 
reduce total water loss to around 258 liters/connection, Water Billed Loss Index to 18.2% and the Water Metered Loss Index to 27.6% by 2020.  Nonetheless, on account of 
the drought, the negative impacts on our revenue during 2015 and the necessity to prioritize investing in the expansion of water availability, the scope and the goals of our 
Corporate Program for Reduction of Water Loss are under revision. 

In order to continue to supply water to the population despite its low availability, one of the measures that we adopted was to further reduce water pressure across our 
network  of  operation.   Insomuch  as  the  utilization  of water sources,  real  water  loss (water  physically  lost,  which  corresponds to  about  65% of  the  Water  Metered  Loss 
Index) fell from 22.2% in December 2008 to 18.5% in December 2015.  This reduction is not only the result of initiatives to combat water loss including, for example, 
strengthening our supply systems’ “pressure management”, but it can also be attributed to atypical and temporary operations. 

43

For more information on the measure we have adopted to confront the water crisis, see “—The Current Water Crisis”.

Our strategy to reduce water loss has two approaches:





reduction in the level of physical loss, which results mainly from leakage.  To this end we are primarily replacing and repairing water transmission lines and 
pipes and installing probing and other equipment, including strategically located pressure-regulating valves; and 

reduction of non-physical loss, which results primarily from the inaccuracy of our water meters installed at our customers’ premises and from clandestine 
and illegal use.  To this end we are upgrading and replacing inaccurate water meters and expanding our anti-fraud personnel.

We are taking measures to decrease physical loss by reducing response time to fix leakages and by better monitoring of non-visible water main fractures.  Among other 

initiatives, we have adopted the following measures to reduce physical water loss:  

the introduction of technically advanced valves to regulate water pressure throughout our water  transmission lines in order to maintain appropriate water 
pressure downstream.  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 transmission lines and the resulting stress on the network can cause 
significant water loss through cracks and an increase in ruptures of the pipes.  The technically advanced valves are equipped with probes programmed to feed 
data to the valve in order to reduce or increase pressure to the water transmission lines as water usage fluctuates; the reconfiguration of interconnected water 
distribution to permit the distribution of water at lower pressure;

the implementation of routine operational leak detection surveys to reduce overall water loss;

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, billed at a 
lower rate; 

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

installing water meters where none are present; and 

conducting preventive maintenance of existing and newly installed water meters.















Water Quality

We believe that we supply high quality treated water that is consistent with the standards set by Brazilian law, which are similar to the standards set in the United 
States  of  America  and  Europe.   Pursuant  to  the  Brazilian  Ministry  of  Health  (Ministério  da  Saúde)  regulations,  we  have  significant  statutory  obligations  regarding  the 
quality of treated water. 

In  general,  the  state  of  São  Paulo  has  excellent  water  quality  from  underground  or  surface  water  sources.   However,  high  rates  of  population  growth,  increased 
urbanization  and  disorganized  occupation  of  some  areas  of  the  São  Paulo  metropolitan  region  have  reduced  the  quantity  and  quality  of  water  available  to  serve  the 
population 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 are also 
investing in improvements of our water transmission lines and our treatment systems to ensure the quality and availability of water for the upcoming years.

44

Water quality is monitored at all stages of the distribution process, including at the water sources, water treatment facilities and in the distribution network.  We have 
15 regional laboratories, one central laboratory, and laboratories located in all water treatment facilities that monitor water quality, as required by our standards and those 
set by law.  Our laboratories analyze an average of 62.0 thousand samples 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.   Our  central  laboratory  and  13  of our  regional  laboratories  have  obtained  the  ABNT  NBR  ISO  IEC  17025  accreditation  (accreditation  for 
general requirements for the competence of testing and calibration laboratories) awarded by the National Institute of Metrology, Quality and Technology, or INMETRO.

All  chemical  products  used  for  water  treatment  are  analyzed  and  follow  strict  specifications  set  out  in  recommendations  made  by  the  National  Health  Foundation 
(Fundação Nacional de Saúde), or NHF,  ABNT, and the National Standard Foundation (NSF) and the American Water Works Association (AWWA) to eliminate toxic 
substances that are harmful to human health.  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:   (i) fighting  algae  growth  at  the  water  source  and  (ii)  using  advanced treatment  processes  at  the  water  treatment 
facilities  that  involve  the  use  of  powdered  activated  carbon  and  oxidation  by  potassium  permanganate.   The  algae  growth  creates  significant  additional  costs  for  water 
treatment because of the higher volumes of chemicals used to treat the 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  pollution  in  the  São  Paulo  metropolitan  region.   In  addition,  we  also 
participate in the Clean Stream Program to clean important streams in the city of São Paulo.  Other initiatives also aimed at improving the water quality in the water sources 
located  in  the of  São  Paulo metropolitan region  are Nossa  Guarapiranga  and Pró-Conexão.   See  “—Main  Projects  of  Our  Capital Expenditure  Program—Metropolitan 
Water Program—Water Source Program,” “—Clean Stream Program,” and “—New Policies and Programs—Nossa Guarapiranga”. 

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  add  fluoride  to the  water at  our treatment facilities  prior  to its  distribution  into  the water supply network.   Fluoridation primarily 

consists of adding fluorosilicic acid to water at between 0.6 mg/L and 0.8 mg/L to assist in the prevention of tooth decay among the population.

Sewage Operations

We are responsible for the collection, removal, treatment and final disposal of sewage.  As of December 31, 2015, we collected approximately 87% and 82% of all the 
sewage produced in the municipalities in which we operate in the São Paulo metropolitan region and in the Regional Systems, respectively.  During 2015, we collected 
approximately 86% of all the sewage produced in the municipalities in which we operated in the state of São Paulo.  We installed 226.1 thousand, 244.3 thousand and 236.6 
thousand new sewage connections in 2015, 2014 and 2013, respectively.

Sewage System 

The purpose of our sewage system is to collect and treat sewage and to adequately dispose of the treated sewage.  As of December 31, 2015, we were responsible for 
the operation and maintenance of 48,774 kilometers of sewage lines, of which approximately 26,082 kilometers are located in the São Paulo metropolitan region and 22,692 
kilometers are located in the Regional Systems, respectively.

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

45

Sewage lines (in kilometers) 
Sewage connections (in thousands) 

2015

48,774
6,861

As of December 31,
2014

47,992
6,660

2013

47,103
6,340

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 sewage lines made of cast iron.

The public sewage system operated by us was structured in order to receive, in addition to household effluents, a portion of non-domestic effluents (such as industrial 
sewage and sewage from other non-domestic sources) for treatment together with household effluents.  Non-domestic effluents have characteristics that are qualitatively 
and quantitatively different from household effluents and its discharge into the public sewage system is subject to compliance with specific legal demands with the purpose 
of  protecting  the  sewage  collection  and  treatment  systems,  the  health  and  safety  of  operators  and  the  environment.   The  current  environmental  legislation  establishes 
standards for the discharge into the public sewage system and stipulates that such effluents be subject to pretreatment in order to comply with the estabilished standards.  
These standards are defined in State Decree No. 8,468/1976, as amended by State Decree No. 54,487/2009.  

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 us and the effluent producer.  Failure to comply with these conditions can lead to the application of penalties by us.  In extreme cases, 
the  Sao  Paulo  Sanitation  Technology  Company  (Companhia  Ambiental  do  Estado  de  São  Paulo),  or  “CETESB”,  is  notified  in  order  for  the  applicable  measures  to  be 
taken.  

We considered the condition of the sewage lines in the São Paulo metropolitan region to be adequate as of the date of this annual report.  Due to a greater volume of 
sewage  collected,  a  higher  population  and  more  extensive  commercial  and  industrial  development,  the  sewage  lines  in  the  São  Paulo  metropolitan  region  are  more 
deteriorated than those of the Regional Systems.  To counter the effects of deterioration, we maintain an ongoing program for the maintenance of sewage lines intended to 
address anticipated fractures arising from obstructions caused by system overloads.

Unlike the São Paulo metropolitan region, the interior region of São Paulo State does not generally suffer obstructions caused by sewage system overload.  The coastal 
region, however, experiences obstructions in its sewage lines primarily due to infiltration of sand, especially during the rainy season in the summer months.  In addition, the 
sewage  coverage  ratio  in  the  coastal  region  is  lower  than  in  the  other  regions  served  by  us,  with  approximately  69%  of  all  residences  in  the  coastal  region  currently 
connected to our sewage network as of December 31, 2015. 

New sewage connections are made on substantially the same basis as connections to water lines:  we assume the cost of installation for the first 20 meters of sewage 

lines from the sewage network to all customers’ sewage connections and the customer is responsible for the remaining costs.

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

São Paulo metropolitan region 
Regional Systems 
Total

2016

2017

2018

2019

2020

2021

2016-2021

136
106
242

132
110
242

46

130
107
237

in thousands
136
101
237

129
108
237

137
100
237

800
632
1,432

Sewage Treatment and Disposal 

In 2015, approximately 68% and 97% of the sewage we collected in the São Paulo metropolitan region and the Regional Systems, respectively, or 78% 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 rivers and the Atlantic Ocean, in 
accordance with applicable legislation.  Though we have not yet reached full coverage of sewage collection and treatment services in the regions were we operate, we are 
making efforts to reach this goal.

We  currently  operate  9  ocean  outfalls  and  530  sewage  treatment  facilities,  of  which  the  five  largest,  located  in  the  São  Paulo  metropolitan  region,  have  treatment 

capacity of approximately 18 cubic meters of sewage per second. 

In the São Paulo metropolitan region, the treatment process used by most treatment facilities is the activated sludge process.  

Sewage treatment in the Regional Systems will vary according to the particularities of each area.  In the interior region of São Paulo State, treatment consists largely of 
stabilization ponds.  There are 428 secondary treatment facilities in the interior region of São Paulo State that have treatment capacity of approximately 15 cubic meters of 
sewage per second.  Similar to our disposal process for treated sewage collected in the São Paulo metropolitan region, the majority of sewage collected in the coastal region 
receives treatment and disinfection and is then discharged into rivers and also into the Atlantic Ocean through our ocean outfalls, in accordance with applicable legislation.  
We have 78 sewage treatment facilities in the coastal region.

Effluents from our treatment facilities must comply with limitation guidelines for release of effluents into receiving water bodies. Additionally, the quality of the water 
in the receiving water body must not be impaired by the release of such effluents, as established by State Decree No. 8,468/1976 and Conama Resolution No. 357/2005, as 
amended by Conama Resolution No. 430/2011.

We  are  a  party  to  a  number  of  legal  proceedings  related  to  environmental  matters.   See  “Item 8.A.  Financial  Statements  and  Other  Financial  Information—Legal 
Proceedings”.  In addition, our capital expenditure program includes projects to increase the amount of sewage that we treat.  See “Item 4.A. History and Development of 
the Company—Capital Expenditure Program” and “Item 4.B. Business Overview—Environmental Matters—Environmental Regulation—Sewage Requirements”.

Sludge Disposal 

The creation of sludge is inherent to the sanitation cycle.  The treatment of water and sewage produces residue which needs to be disposed of appropriately to prevent 
harm to the environment.  Sludge removed from the treatment process typically contains water and a very small proportion of solids.  We use filter presses, belt presses, 
drying beds and centrifugation machines, among other processes, to abstract the water from the sludge.

Currently, the sludge generated through our business activity goes mainly to landfills.  In turn, we treat the slurry generated in these landfills.

Current legislation and the population at large demand advances in the search for alternative technologies that minimize the generation of and find beneficial uses for 

sludge.  In light of these demands, we work on several fronts, seeking innovative approaches to the destination and final disposal of sludge.  

In  our  sewage  treatment  station  in  Barueri,  the  largest  treatment  station  in  Latin  America,  we  aim  to  reduce  the  quantity  of  sludge  sent  to  landfills  by  seeking 
partnerships to conduct sludge drying. By drying sludge, 500 tons of sludge are reduced to 140 tons, transforming the dried sludge into cylindrical pellets that are used as a 
source of fuel for the generation of thermoelectric energy. The energy generated by the dried sludge pellets is used in the sludge drying process. We also use dried sludge to 
generate electric energy which may be sold or used in our own sewage treatment stations. 

In the interior and coastline regions of São Paulo, we have initiatives for the implementation of thermosolar sludge drying systems. By combining the remains of tree 

stubs and eucalyptus shells to the dried sludge, the sludge produced may be used as a fertilizer for agriculture. 

Part of the R$14.7 million invested in research and development in 2015 was used for approached to the disposal and beneficial use of sludge, in order to meet the 
Principles  for  Cleaner  Production.   For  more  information,  see  “Item  5.C.  Operating  and  Financial  Review  and  Prospects—Research  and  Development,  Patents  and 
Licenses, Etc”

Sludge  disposal  must  comply  with  State  and  Federal  law  requirements,  such as  Resolution  No. 375/2006 of the  CONAMA,  Federal  Law No. 12,305/2010,  Federal 

Decree No. 7,404/2010, State Law No. 12,300/2006 and State Decree No. 54,645/2009.

47

Principal Markets in Which We Operate

As of December 31, 2015, we operated water and sewage systems in 364 of the 645 municipalities in the state of São Paulo.  In addition, we currently supply water on 

a wholesale basis to 5 municipalities located in the São Paulo metropolitan region with an urban population of approximately 3.1 million people. 

The following table provides a breakdown of gross revenues from water supply and sewage services by geographic market for the periods indicated:

São Paulo metropolitan region 
Regional Systems 
Total

2015

6,021.9
2,924.9
8,946.8

Year ended December 31,
2014
(in millions of R$)

6,235.3
2,670.1
8,905.4

The following table provides a breakdown of gross revenues from water supply and sewage services by category of activity for the periods indicated: 

Water supply 
Sewage services 
Total

Competition

2015

5,045.5
3,901.3
8,946.8

Year ended December 31,
2014
(in millions of R$)

4,896.7
4,008.7
8,905.4

2013

6,984.4
2,555.7
9,540.1

2013

5,276.1
4,264.0
9,540.1

In the state of São Paulo, there are approximately 276 municipalities that operate their own water and sewage systems and that collectively have a total population of 
approximately 14.2 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.

The competition for municipal concessions arises mainly from the municipalities, as they may 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 “Item 3.D. —Risk Factors—Risks Relating to Our Business—Municipalities may terminate our concessions before they expire in certain circumstances”.  
In the past, municipal governments have terminated our concessions agreements before the expiration date.  Furthermore, 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  Statements  and  Other  Financial 
Information—Legal  Proceedings”.   We  negotiate  expired  concession  agreements  and  concession  agreements  close  to expiration  with  the  municipalities  in  an  attempt  to 
maintain our existing areas of operations.  In the state of São Paulo we face competition from private and municipal water and sewage service providers.

In recent years, we have also experienced an increasing level of competition in the market of water supply to industrial customers.  Several large industrial customers 
located in municipalities we serve use their own wells to meet their water needs.  In addition, competition for the disposal of non-residential, commercial and industrial 
sludge  in  the  São  Paulo  metropolitan  region  has  increased  in  recent  years  as  private  companies  offer  stand-alone  water  treatment  solutions  inside  the  facilities  of  their 
customers.  We  have also established new tariff schedules for commercial and industrial customers  in  order  to assist  us  in  retaining these  customers.   For  this  group of 
certain  industrial  customers,  ARSESP  has  given  us  special  authorization  to  establish  fixed  demand  agreements.   Since  these  fixed  demand  agreements  (take-or-pay 
contracts) with certain of our industrial customers are not covered by our bonus program, we stopped requiring the fulfillment of this fixed demand contract to encourage 
lower  water  consumption.   In  2015,  due  to  the  water  crisis,  we  did  not  formalize  new  contracts  or  increment  the  volume  of  water  supplied  and  stopped  requiring  the 
fulfillment of this fixed demand contract.  For more information about the water crisis, see “—The Current Water Crisis”.  For more information on Take-or-pay Contracts 
see “—Tariff Structure—Fixed Demand Agreements (Take-or Pay)”. 

48

Billing Procedures

The procedure for billing and payment of our water and sewage services is largely the same for all customer categories.  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  loss  resulting  from  faulty 
water meters.  Sewage billing is included as part of the water bill and is based on the water meter reading.

The  majority  of  the  bills  for  water  and  sewage  services  are  delivered  to  our  customers  in  person,  mainly  through  one  of  our  employees  or  through  independent 
contractors who are also responsible for reading water meters.  The remainder, by judicial determination, is sent by mail.  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  after  deducting  average banking fees  ranging from R$0.29  to R$1.21  per transaction  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 2015, 2014 and 2013, we received payment of 90.4%, 94.6% and 95.2%, respectively, of the amount billed to our retail customers, and 90.2%, 94.3% and 
95.0%,  respectively,  of  the  amount  billed  to  those  customers  other  than  State  entities,  within  30 days  after  the  due  date.   In  2015,  2014  and  2013,  we  received  96.2%, 
101.1% and  100.5%,  respectively,  of  the  amount billed  to  the  State  entities.   Amounts in  excess  of  100.0%  reflect  our  recovery  of  amounts  billed in  prior  years.   With 
respect to wholesale supply, in 2015, 2014 and 2013, we received payment of 43.8%, 32.8% and 45.8%, respectively, of the amount billed within 30 days. 

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.  Part of the water meter monitoring for billing purposes is carried out by our own personnel, trained and supervised by us, and part of it is carried out 
by third-party contractors that employ and train their own personnel whose training we supervise.

Tariffs 

Tariff  adjustments  follow  the  guidelines  established  by  the  Basic  Sanitation  Law,  ARSESP  and  our  contracts,  when  applicable.   The  guidelines  also  establish 
procedural  steps  and  the  terms  for  the  annual  adjustments.   The  adjustments  have  to  be  announced  30 days  prior  to  the  effective  date  of  the  new  tariffs,  which 
previously became effective in September.  As of the tariff revision conducted in 2014, the definition of the base date and future adjustments occur in April, and become 
effective in May.

Tariffs  have  historically  been  adjusted  once  a  year  and  for  periods  of  at  least  12 months.   See  “—Government  Regulations  Applicable  to  our  Contracts—Tariff 

Regulation in the State of São Paulo” for additional information regarding our tariffs.

With  the  publication  of  the  Basic  Sanitation  Law,  Federal  Law  No.  11,445/2007,  states  have  been  required  to  establish  independent  regulators  responsible  for  the 
regulation of basic sanitation services, including tariff regulation.  To exercise this assignment, the State of São Paulo enacted State Law No. 1,025/2007, which established 
ARSESP, which regulates and supervises the services we provide to the State and also to the municipalities that have agreed to its jurisdiction.  The guidelines by which we 
readjust our tariffs are defined pursuant to State Decree No. 41,446/1996, which was ratified by Federal Law No. 11,445/2007, and regulated by the resolutions issued by 
ARSESP.

In regards to municipalities that have not explicitly selected ARSESP as their regulator, the Basic Sanitation Law allows the municipality to create other regulatory 
agencies of their own.  In 2007, the municipality of Lins decided to create its own regulatory authority, although it revised this decision in 2010, transferring to ARSESP 
the regulation of the water activities performed in Lins, including for the setting of tariffs.  The municipality of Lins has reserved, however, the power to ultimately approve 
the tariff set by ARSESP.   

In addition, in 2011, the municipalities located in the hydrographic basins of the Piracicaba, Capivari and Jundiaí rivers created a consortium known as ARES/PCJ to 
regulate and supervise our activities in those areas, and for similar purposes, in November 2013 the Regulatory Agency of São Bernardo do Campo (AR/SBC) was created.  
As a result of the creation of the ARES/PCJ, we are currently involved in legal proceedings in which ARES/PCJ is claiming that it has jurisdiction over the regulation and 
supervision of our activities in three municipalities (Piracaia, Mombuca and Santa Maria da Serra).  We cannot predict the outcome of this case or how it may impact our 
business.  See “Item 3.D. Risk Factor—Risks Relating to Our Business—Current regulatory uncertainty, especially with regard to implementation and interpretation of the 
Brazilian Basic Sanitation Law, may have an adverse effect on our business”.  

49

The number of judicial disputes related to the regulation and oversight of services in areas served by us and regulated by ARSESP has recently increased since 2012.  

Regional and municipal agencies may continue to be created and may dispute with ARSESP regarding the regulation and oversight of our services. 

In  2009,  ARSESP  invited  public  discussion  and  hearings  to  take  place  regarding  the  methodology  for  tariff  revisions.   In  2010,  ARSESP  issued  Resolution 
No. 156/2010.   This  resolution  established  the  methodology  and  general  criteria  for  the  valuation  of  our  regulatory  asset  base  to  be  used  for  purposes  of  tariff  review 
processes and auditing.  In May 2011, ARSESP disclosed the applicable weighted average cost of capital (8.06%) and disclosed in April 2012 the methodology for tariff 
revisions.  In November 2012, ARSESP published a preliminary technical note for public consultation, proposing a preliminary initial maximum average tariff (P0) and X 
Factor, based on a preliminary evaluation of assets held by us.

In  2012  and  2011,  we  readjusted  our  prices  by  5.15%  and  6.83%  starting  on  September  11,  2012  and  on  September  11,  2011,  respectively.   On  April  22,  2013, 
ARSESP approved a preliminary tariff revision of 2.3509% to be applied equally on all customer tariffs.  These adjustments were valid for all municipalities we serve, 
except for the municipalities that possess specific contractual tariff clauses.

On  November  1,  2013,  ARSESP  issued  Resolution  No. 435/2013  which  authorizes  us  to  implement  a  tariff  adjustment.   Initially,  this  adjustment  considered  an 
inflation  rate  of  6.2707%  as  measured  by  the  IPCA  for  the  period  from  August  2012  to  July  2013.   From  this  number,  ARSESP  deducted  the  efficiency  factor,  or  “X 
Factor”,  of  0.4297%  for  the  period,  and  this  resulted  in  an  adjustment  of  5.8410%.   Additionally,  ARSESP  estimated  the  gain  that  we  had  with  the  preliminary  tariff 
revision of 2.3509% beginning in April 2013, and this resulted in a further reduction of 0.9249% in the indicator.  Moreover, ARSESP also estimated our loss of 0.6538% 
resulting from the delay in the reposition of the IPCA and added that estimated amount.  The product of these estimations and considerations resulted in a linear increase of 
3.1451% in tariffs beginning December 11, 2013. 

In April 2014, ARSESP issued Resolution No. 484/2014 (further ratified by ARSESP Resolution No. 520/2014), which, among other things:  (i) establishes that, as of 
May 11, 2014, a tariff repositioning index of 5.4408% in relation to our current tariffs and an annual X Factor of 0.9386%, which will be deducted in the upcoming annual 
tariff adjustments, shall be applied to water services bills; (ii) allows us to apply the repositioning index arising from the tariff revision at a more opportune future date, 
when we shall proceed with a recalculation and monetary adjustment of the applicable amounts, in order to ensure our economic and financial balance, taking into account 
the atypical situation in our market due to the lack of rainfall and our measures to encourage water savings in order to ensure supply; (iii) establishes that the next annual 
tariff  adjustments  will  occur  on  April  11,  2015  and  April  11,  2016,  with  the  next  tariff  revision  on  April  11,  2017;  and  (iv) ratifies  the  readjustment  rules  set  forth  on 
Resolution No. 406/2013 and updated the X Factor for the tariff cycle from 0.836% to 0.9386%.  The current tariff structure will be kept with respect to our services until 
the new structure is approved by ARSESP and implemented.  Considering what has been established by Resolution No. 484/2014, we decided to postpone the application 
of the repositioning index to an opportune date no later than the end of December 2014.

ARSESP Resolution No. 520/2014, published on November 27, 2014, authorizes us to implement a final tariff revision as of December 27, 2014 with a repositioning 
index  of  6.4952%.   This  percentage  corresponds  to  the  index  of  the  5.4408%  tariff  revision  increase  already  granted  as  a  result  of  the  conclusion  of  the  tariff  revision, 
approved by ARSESP Resolution No. 484/2014 of April 10, 2014, and an additional 1% index, accrued to the index for partial compensation regarding the postponement of 
the  tariff  revision  application.   This  additional  1%  index  may  be  revised  or  supplemented  after  ARSESP  analyzes  data  related  to  our  loss  in  revenue  on  account  of  the 
application postponement.  

ARSESP Resolution No. 545/2015, published in January 2015, authorized us to implement a contingency tariff mechanism consisting of additions to water and sewage 
bills for customers whose monthly consumption exceeds the average monthly consumption verified, between February 2013 and January 2014.  The tariff is subject to a 
contingency as follows:

50

I.

II.

a 40% increase on the tariff amount applicable to the water consumption portion that exceeds up to 20% of the average; or

a 100% increase on the tariff amount applicable to the water consumption portion that exceeds more than 20% of the average.

In  March  2015,  we  filed  with  ARSESP  an  extraordinary  revision  request  motivated  by  the  decline  in  the  volume  of  water  billed  due  to  the  water  crisis  and  the 
unpredicted increase in electricity tariffs.   After analyzing our request and receiving opinions through public consultations, ARSESP published Resolutions No. 560 and 
No. 561: 

I.

II.

Resolution No. 560, published May 4, 2015, authorized a readjustment of 7.7875% on existing tariffs, which constituted of: (i) an annual tariff readjustment 
for  the  year  of  2015  of  7.1899%,  calculated  based  on  the  8.1285%  variation  in  the  IPCA  in  the  period  between  March  2014  and  March  2015,  minus  the 
efficiency factor of 0.9386%; and (ii) the additional adjustment of 0.5575% due to the postponement of the application of the Ordinary Tariff Review (the 
tariff review that adjusts tariffs according to inflation), authorized in May 2014 but only applied in December 2014, when it was partially compensated; and

Resolution No. 561, also published May 4, 2015, established the 6.9154% index of the Extraordinary Tariff Revision (the tariff revision we requested due to 
the decline in the volume of water billed due to the water crisis and the unpredicted increase in electricity tariffs)  of the Company, applicable to the tariffs 
authorized on this date by Resolution No. 550. Both tariff adjustments, combined, resulted in the 15.24% index. The new tariff values began to be applied as 
of June 4, 2015.

In December 2015, we requested ARSESP to ratify the continuity and update of the Water Consumption Reduction Incentive Program through the Bonus grant to the 

Water and Sewage Bill, as well as the continuity of the Contingency Tariff.  In response, ARSESP published the following 2 resolutions:

I.

II.

Resolution No. 614/2015, published in December 2015, authorized the extension until December 31, 2016, or until hydrological conditions become more 
predictable, of the effects of ARSESP Resolution No. 545/2015, maintaining the current rules and conditions for the application of the contingency tariff by us 
envisaged in Resolution No. 545/2015; and

Resolution  No. 615/2015,  also  published  in  December  2015,  authorized  the  extension  of  the  Water  Consumption  Reduction  Incentive  Program  until 
December  31,  2016,  or  until  hydrological  conditions  become  more  predictable,  and  updated  of  the  reference  consumption  value  used  to  determine  when 
discounts should be offered to our customers.  Prior to this resolution, the reference consumption value by which we calculated the discounts was the average 
consumption of our customers in the period between February 2013 and January 2014.  As of December 2015, we modified the reference consumption value, 
which is currently set at 78% of the prior reference consumption value.  The updated reference consumption value began to be applied to our customers’ bills 
as of February 1, 2016.  The bonus ranges of 10%, 20% and 30%, were maintained, following the rules of our discount (bonus) program which established 
that if a client consumes 10% less water during a certain period compared to his reference consumption value, he will obtain a discount of 20% in his water 
bill, and if the client consumes 20% less water, he obtains a discount of 30%.

In March 2016, we filed with ARSESP a request to cancel the Water Consumption Reduction Incentive Program and the Contingency Tariff.  In response, ARSESP 

published on March 31, 2016, the following Resolutions:

I.

Resolution No. 640/2016, authorizing the cancellation of the Contingency Tariff, which will be applied to water meter readings as of May 1, 2016; and

51

II.

Resolution  No.  641  authorizing  the  cancellation  of  the  Water  Consumption  Reduction  Incentive  Program,  which  granted  discounts  to  water  and  sewage 

bills.  This cancellation will be applied to water meter readings as of May 1, 2016.

On April 11, 2016, ARSESP issued Resolution No. 643/2016, which authorizes us to implement an 8.4478% tariff adjustment to our current tariffs, effective on May 

12, 2016.

With regard to the contract dated June 23, 2010, executed with the State and the city of São Paulo to regulate the provision of water and sewage services for the next 30 
years, among other principal terms of this agreement, we must transfer 7.5% of our gross revenues, subtracting the COFINS and PASEP taxes and unpaid bills of publicly 
owned  properties  in  the  city  of  São  Paulo,  to  the  Municipal  Fund  for  Environmental  Sanitation  and  Infrastructure  (Fundo  Municipal  de  Saneamento  Ambiental  e 
Infraestrutura), ARSESP issued the following resolutions:







In  March  2013,  ARSESP  issued  Resolution  No. 407/2013,  authorizing  us  to  pass  on  to  our  consumers  the  7.5%  transfer  to  the  Municipal  Fund  for 
Environmental  Sanitation  and  Infrastructure,  as  defined  by  municipal  legislation.   Pursuant  to  the  Program  Contracts  and  the  Sewage  and  Water  Supply 
Service Contracts, this charge must be considered in the tariff revision.

In  April 2013,  ARSESP  issued  Resolution  No. 413/2013,  which  effectively  suspended  Resolution  No. 407/2013  until  the  tariff  revision  process  is 
concluded, thereby postponing our authorization to pass on to our consumers’ service bill the charge for the Municipal Fund for Environmental Sanitation 
and Infrastructure.  The postponement of Resolution No. 407 was due to a request from the Government of the State of São Paulo to analyze, among other 
matters, methods of reducing the impact on consumers.  

In May 2014, ARSESP issued Resolution No. 488/2014, which maintained the suspension of ARSESP Resolution No. 407/2013 until the outcome of the 
revision of the contract signed between us, the city of São Paulo and the State of the São Paulo is known, thereby delaying the authorization to pass on to our 
consumers’ service bill the charge for the Municipal Fund for Environmental Sanitation and Infrastructure.  We cannot be certain when the contract will be 
revised or when we will be able to pass the 7.5% charge on to consumers through the service bill.

For more information see “Item 3.D. Risk Factors—Risks Relating to Our Business—The terms of our agreement to provide water and sewage services in the city of 

São Paulo could have a material adverse effect on us.”

Tariff Structure

Regarding  the  tariff  structure,  ARSESP  Resolution  No. 463/2014,  published  in  January  2014,  established  April 10,  2014,  as  the  deadline  for  publication  of  the 
timetable  for  implementation  of  our  new  tariff  structure.   However,  on  April  17,  2014,  ARSESP  issued  Resolution  No. 484/2014,  which  maintains  the  current  Tariff 
Structure and does not set a date for implementation of the new tariff structure.  Until the new tariff structure is approved by ARSESP, we will continue to use our current 
tariff structure.  As such, we currently divide tariffs into two categories:  residential and non-residential.  The residential category is subdivided into standard residential, 
residential-social and shantytown (favela).  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:   (i) commercial,  industrial  and  public 
customers;  (ii) “not-for-profit”  entities  that  pay  50.0%  of  the  prevailing  non-residential  tariff;  (iii) government  entities  that  have  entered  into  a  water  loss  reduction 
agreement  with  us  and  pay  75.0%  of  the  prevailing  non-residential  tariff;  and  (iv) public  entities  that  have  entered  into  program  agreements,  for  municipalities  with  a 
population of up to 30.0 thousand and with half or more classified according to their degree of social vulnerability by the Social Vulnerability Index of São Paulo (Índice 
Paulista de Vulnerabilidade Social) 5 and 6, of the SEADE, obtained through the analysis of the 2000 Census figures, and start to receive tariff benefits, in accordance with 
our normative ruling, for the category of public use, at the municipality level.  The tariffs are equal to those offered to the commercial/entity of social assistance and that 
corresponds to 50.0% of the public tariffs without contractual provisions referred to in item (iv) above. 

52

Fixed Demand Agreements (Take-or-Pay)

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 fixed demand agreements (take-or-pay) with us for at least one-year terms.  In October 2007, the minimum volume for entering into these agreements was 
reduced from 5.0 thousand cubic meters per month to 3.0 thousand cubic meters per month.  We believe this tariff schedule will help prevent our commercial and industrial 
customers from switching to the use of private wells.  Since 2008, we have been authorized by ARSESP to establish tariffs for non-residential customers, such as industrial 
and commercial customers, that consume more than 3.0 thousand cubic meters per month, with a maximum tariff equal to the tariffs applicable to non-residential customers 
that consume more than 50 cubic meters per month.  In 2010, ARSESP authorized a reduction in the minimum volume of consumption for customers that enter into fixed 
demand agreements with us to a minimum of 500 cubic meters per month.   

In  2015,  due  to  the  water  crisis,  we  did  not  formalize  new  contracts  or  increment  the  volume  of  water  supplied  and  stopped  requiring  the  fulfillment  of  this  fixed 
demand  contract.   These  fixed  demand  agreements  are  not  covered  by  the  water  consumption  reduction  program,   and  are  comprised  in  the  contingency  tariff  that  was 
implemented in January 2015.  For more information about the water crisis, see “—The Current Water Crisis”.  

Water and sewage services tariffs

We establish separate tariff schedules for our services in each of the São Paulo metropolitan regions and each of the interior region of São Paulo State 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  exceed  our  costs  of  providing  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 region of São Paulo State and 
coastal regions.

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 São Paulo State region, sewage tariffs are approximately 20.0% lower than water tariffs.  Wholesale water rates are the same 
for all municipalities served in the São Paulo metropolitan region.  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 first category (0-10) corresponds to the minimum fee that is charged to our customers for the 
consumption of water.  The following table sets forth the water and sewage services tariffs by (i) customer category and class; and (ii) volume of water consumed, charged 
in cubic meters during the years and period stated in the São Paulo metropolitan region:

Customer Category Consumption

Residential
Standard Residential:
0-10(1)
11-20
21-50
Above 50
Social:
0-10(1)
11-20
21-30
31-50
Above 50
Shantytown (favela):
0-10(1)
11-20
21-30
31-50
Above 50
Non-Residential
Commercial/Industrial/Governmental:
0-10(1)
11-20
21-50
Above 50
Social Welfare Entities:
0-10(1)
11-20
21-50
Above 50
Government entities that employ the Rational Use of Water Program (Programa de Uso Racional da Água – PURA), with reduction 

agreement:

0-10(1)
11-20
21-50
Above 50

(1)   The minimum volume charged is for ten cubic meters per month.

53

As of June 4 2015

As of December 27, 
2014
(reais per m3)

As of December 11, 
2013

2.06
3.23
8.07
8.89

0.70
1.21
4.28
6.10
6.74

0.53
0.61
2.02
6.10
6.74

4.15
8.07
15.45
16.10

2.07
4.03
7.76
8.06

3.11
6.04
11.63
12.08

1.79
2.80
7.00
7.71

0.61
1.05
3.71
5.29
5.85

0.46
0.53
1.75
5.29
5.85

3.60
7.00
13.41
13.97

1.80
3.50
6.73
6.99

2.70
5.24
10.09
10.48

1.68
2.63
6.57
7.24

0.57
0.99
3.48
4.97
5.49

0.44
0.50
1.64
4.97
5.49

3.38
6.57
12.59
13.12

1.69
3.29
6.32
6.56

2.53
4.92
9.47
9.84

In 2015, 2014 and 2013, the average tariff calculated for the Regional Systems was approximately 25% below the average tariff of the São Paulo metropolitan region. 

On April 11, 2016, ARSESP issued Resolution No. 643/2016, which authorizes us to implement an 8.4478% tariff adjustment to our current tariffs, effective on May 

12, 2016.

Government Regulations Applicable to our Contracts

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



















PLANASA

the granting of concessions to provide water and sewage services;

the development of PPPs;

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 agreement 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 by the service provider;

minimum requirements for water and sewage services;

water usage;

water quality and environmental protection; and

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

54

In 1978, the tariffs and terms of operations of basic sanitation services, integrated to the National Plan of Basic Sanitation (Plano Nacional de Saneamento Básico), or 
“PLANASA”,  were  regulated  by  Law  No.  6,528/1978,  which  regulated  and  supervised  SABESP,  created  by  State  Law  No.  119/1973  as  a  mixed  capital  company  to 
provide basic sanitation services to the municipalities of the state of São Paulo.

 Pursuant to the Brazilian Constitution, the authority to develop and provide public water and sewage services are the joint responsibility of the federal government, the 
states and the municipalities.  Article 216 of the Constitution of the State of São Paulo establishes that the State must provide the conditions for the 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 rendering 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 render these services directly or through a concession granted to a third party.

The Basic Sanitation Law

The  Basic  Sanitation  Law  No.  11,445/2007,  or  “The  Basic  Sanitation  Law”  went  into  effect  on  January  5,  2007,  effectively  substituting  the  PLANASA  model, 
establishing  nationwide  guidelines  for  basic  sanitation  and  seeking  to  create  the  appropriate  solutions  for  the  provision  of  basic  sanitation  considering  the  particular 
conditions in each state and municipality. The Basic Sanitation Law also sought to facilitate the technical cooperation between the state and municipalities. 

The Basic Sanitation Law establishes the following guiding principles for the public service of basic sanitation:  universalization, integrality, efficiency and economic 
sustainability,  transparency  of  actions,  social  control  and  integration  of  infrastructure  and  services  with  the  management  of  water  resources.   It  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 
entities responsible for the regulation and control of sanitation services and the establishment of the rights and obligations of the users and of social control mechanisms.  It 
also defines the laws and regulations under which a water and basic sanitation provider may provide its services to several regions controlled by different owners (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 Basic Sanitation Law defines the rules for the delegation of water and sewage services by the states and municipalities to contracted parties. The Basic 
Sanitation  Law  also  significantly  amends  Article 42  of  the  Concessions  Law,  which  establishes  the  termination  of  concessions  prior  to  the  expiration  date  and  the 
reversibility  conditions  for  unamortized  assets.   The  amendment  to  Article  42  establishes  that  when  a  concession  is  terminated  prior  to  its  expiration  date,  the  service 
provider must be compensated for unamortized assets, preferably through an amicable settlement between the parties defining the criteria for the calculation and payments 
of indemnity.  Federal Decree No. 7,217/2010, enacted on June 21, 2010, (as modified by Federal Decree No. 8,211/2014 of March 21, 2014) and Law No. 11,445/2007, 
implemented the first series of new principles under the Basic Sanitation Law, including the following:









for public-private partnership contracts (or program contracts), public hearings must be held with respect to bid announcements, and technical and economic 
viability studies must be performed;

the rights and obligations of customers and service providers, including penalties, are determined by the owner of the public service, not by the regulatory 
agency (since its function is to ensure full compliance of legislative and contractual conditions);

the regulatory agency’s function is to ensure compliance with the law and with the contractual conditions;

the technical and financial viability of the provision of water and sewage services should be determined based on (i) capital contributions necessary to offer 
the services and (ii) expected revenues from the provision of the service; and

55



when a regulated service is to be provided by different service providers, those providers must execute an agreement regulating their respective activities.

The Basic Sanitation Law defines the principles and guidelines which must be respected when securing public funds generated or operated by agencies or entities of 
the federal government, and foresees the possibility of using subsidies as an instrument of social policy in order to ensure access to basic sanitation services to everyone, 
particularly for low-income families.  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 Basic Sanitation Law also provides that the provision of sanitation services may be interrupted by the service provider, in the event of a default of 
payment of the tariffs by the customer, among other reasons.  The provision of sanitation services may only be interrupted after a written notice, and as long as minimum 
health  requirements  are  met.  The  Basic  Sanitation  Law  defines  the  criteria  for  the  reversal  of  assets  at  the  time  of  termination  of  the  agreement  and,  which  also 
encompasses concession agreements, 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  Basic  Sanitation  Law  provides  the  basis  for  calculating  the  amount  of  an  indemnity  due,  which  must  be  calculated  by  a  specialized  institution  chosen  by  mutual 
agreement between the parties.

Pursuant to the Basic Sanitation Law, the parties involved in a concession may enter into an agreement with respect to the payment of the indemnification due to the 
concessionaire.   However,  in  the  absence  of  an  agreement,  the  Basic  Sanitation  Law  establishes  that  the  indemnification  must  be  paid  in  no  more  than  four  equal  and 
successive annual installments, with the first installment payable by the last business day of the fiscal year in which the assets are reversed.

According  to  the  Basic  Sanitation  Law,  the  existing  concessions  will  remain  in  effect  until  payment  of  indemnification  is  made  based  on  the  valuation  of  the 
investments.  The Basic Sanitation Law provides that our new concession agreements must be planned, supervised 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.

Contracts for the Provision of Essential Basic Sanitation Services in Brazil

In Brazil, there are three federal legal regimes for contracting water and sewage services:  (i) public concessions, regulated by Law No. 8,987/1995, which require a 
prior public bidding process; (ii) administration of public services through cooperation agreements between the federal government and local public authorities at State and 
municipal level without  the need  for  a  public  bidding  process, regulated by  the  Public  Consortia  and Cooperation  Agreement Law  11,107/2005;  and  (iii) public-private 
partnerships,  regulated  by  Law  No. 11,079/2004,  used  to  grant  concessions  to  private  companies  to  provide  public  services  and  used  in  relation  to  construction  works 
associated with the provision of public services.  

The Federal Concessions Law No. 8,987/1995 and the State Concessions Law No. 7,835/1992 require that the granting of a concession by the government be preceded 
by a public bidding process.  However, the Federal Public Bidding Law No. 8,666/1993, which establishes the rules for the public bidding process, provides that a public 
bidding process can be waived under 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 Public 
Bidding Law, as amended by the Public Consortia and Cooperation Agreement Law, provides that the program contracted can be executed with waiver of a public bidding 
process.

Concession Agreements

From 1998 to 2005, our contracts with municipalities have been regulated by the Federal Concessions Law No. 8,987/1995.  Generally, these contracts have a 30-year 
term, and the total value of the concession is set by the discounted cash flow method.  Under this method, when the expected contractual cash flow is reached, the total 
value  of  the  concession  and  assets  is  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 term, thereby interrupting the normal contractual cash flow, we are paid an amount equal to the present value of the expected cash flow over the years remaining in 
the concession, adjusted for inflation.

56

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.  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 agreement.

A municipality that chooses to assume the direct control of its water and sewage services must terminate the current relationship by duly compensating the service 
provider and the investments unamortized.  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.  The Basic Sanitation Law reduced the maximum time period for payment of 
indemnification  in  such  cases  to  four  years.   See  “Item 3.D.  Risk  Factors—Risks  Relating  to  Our  Business—Municipalities  may  terminate  our  concessions  before  they 
expire in certain circumstances.  The indemnification payments we receive in such cases may be less than the value of the investments we made”.

Public-Private Partnerships

Public-Private Partnerships, or “PPPs”, are long-term contracts between private parties and government entities, for providing a public asset or service, in which the 
private parties bears significant risk and management responsibility, and remuneration is linked to performance.  PPPs are regulated by the State of São Paulo through Law 
No. 11,688/2004, which was enacted on May 19, 2004.  PPPs may be used for:  (i) implantation, expansion, improvement, reform, maintenance or management of public 
infrastructure; (ii) provision of public services; and (iii) exploitation of public assets and non-material rights belonging to the State.

Payment is conditioned upon performance.  The payment may be collected through:  (i) tariffs paid by users; (ii) use of resources from the budget; (iii) assignment of 
credits belonging to the State; (iv) transfer of rights related to the commercial exploitation of public assets; (v) transfer of real property and other property of assets; (vi)  
public debts securities; and (vii) other revenues.

In our case, payment is conditional upon performance and is collected through the use of resources from the budget.  For more information, see “Item 4 Information the 

company – A. History and development the company – Capital Expenditure Program.

Program Agreements

On April 6, 2005, the federal government enacted Federal Law No. 11,107/2005, or the Federal Public Consortia and Cooperation Agreement Law, which regulates 
Article 241 of the Brazilian Constitution.  This statute provides general principles to be observed when a public consortium enters into contracts with the Brazilian federal 
government, state governments, the Federal District and municipalities, regulating the joint management of public services. 

Federal  Law  No.  11,107/2005  introduces  significant  changes  in  the  relationship  among  municipalities,  states  and  companies  providing  public  sanitation  services, 
prohibiting  the  latter  from  exercising  the  activities  of  planning,  oversight  and  regulation,  including  tariff  regulation,  of  the  services.   The  law  also  created  the  program 
agreement, a contract to be followed when Brazilian states and municipalities enter into agreements for the provision of public services with mixed capital companies.  The 
program agreement provides the guidelines for the joint management of public services by Brazilian states and municipalities with mixed capital companies.  Furthermore, 
this agreement allows states and municipalities to waiver the public bidding process and still be in compliance with concession legislation when entering into contracts with 
entities that are owned by the Brazilian states or municipalities.

Federal Decree No. 6,017/2007 details the conditions for the establishment of joint management entities and the execution of the program agreement regulating the 

Public Consortia and Cooperation Agreement Law.  

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Pursuant  to  the  Brazilian  Constitution,  in  metropolitan  regions,  urban  conurbations  and  microregions,  the  authority  to  develop  public  water  and  sewage  systems  is 
shared by the states and municipalities.  However, for the municipalities which are not a part of the types of regions cited above (metropolitan regions, urban conurbations 
and microregions), the municipalities have the primary responsibility of 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.  On  January 13,  2006,  the  Governor  of  the  State  of  São  Paulo  enacted  State  Decree 
No. 50,470/2006, amended by State Decrees No. 52,020/2007, dated July 30, 2007, and No. 53,192/2008, dated July 1, 2008, which regulate the provision of water and 
sewage  services  in  the  State  of  São  Paulo.   Pursuant  to  these  decrees,  we  may  enter  into  agreements  with  municipalities  in  connection  with  the  provision  of  water  and 
sewage services by means of a “program agreement without a public bidding process”.  In addition, these decrees established that we will continue to render services in the 
areas  covered  by  the  concession  granted  by  the  State.  Following  the  entry  into  force  of  the  Public  Consortia  and  Cooperation  Agreements  Law,  we  adopted  the 
administration of public services through cooperation agreements and program agreement which can be used simultaneously.

Agreements with Municipalities and Metropolitan Regions

We provide basic sanitation services for municipalities and metropolitan regions.  With regard to local operations, the municipalities are responsible for providing basic 
sanitation  services.   Thus,  we  operate  through  new  contracts  executed  pursuant  to  a  legal  waiver  of  public  tender  under  cooperation  agreements  between  the  state  and 
municipalities which permit sharing the management of basic sanitation services. 

With  regard  to  metropolitan  regions,  we  conduct  our  operations  based  on  state  legislation  and  contracts  and  note  pending  litigation  addressing  the  delineation  of 
responsibilities  regarding  basic  sanitation  services  in  municipalities  and  metropolitan  regions.    There  are  pending  cases  before  the  Brazilian  Supreme  Court  regarding 
whether the right to execute concession and program agreements in metropolitan regions belongs to the states or to the municipal governments.  We note that on February 
28, 2013, the Brazilian Supreme Court decided a pending case connected to the state of Rio de Janeiro, whose effects may impact other ongoing legal proceedings.  In its 
decision,  the  majority  of  the  court  held  that  the  state  of  Rio  de  Janeiro  must  establish  new  entities  to  oversee  the  planning,  regulation  and  auditing  of  basic  sanitation 
services in its metropolitan region with the non-partisan participation of relevant municipalities.

In March 2013, the court ruled that this holding would come into effect in the state of Rio de Janeiro after a remaining appeal of its holding is decided.  The court’s 
holding represents a new paradigm in the management and provision of public water and sewage services.  The Brazilian Supreme Court has yet to clarify the effects and 
extension  of  its  decision  which  modifies  the  ability  of  independent  municipalities  in  metropolitan  regions  to  exercise  their  constitutional  competencies,  including  those 
related  to  the  provision  of  basic  sanitation  services,  due  to  public  interest  initiatives  designed  to  provide  adequate  and  continuous  service  to  the  residents  of  these 
municipalities.

With respect to the oversight and sharing of responsibilities between states and municipalities of basic sanitation services, the Brazilian Supreme Court has ruled that 
the state must establish a public entity, with the non-partisan participation of the municipalities, in order to plan, regulate, and oversee basic sanitation services in these 
locations.  Nevertheless, appeals were filed against this holding and are currently pending.

In  January  2015,  the  Federal  Government  issued  the  Metropolitan  Bylaws  (Law  No. 13,089/2015),  which  within  the  next  three  years  will  establish: (i)  the  general 
guidelines for the planning, management and performance of public interest initiatives in metropolitan regions and in urban clusters instituted by the states; (ii) the general 
planning standards for integrated urban development and other international governance instruments; and (iii) the criteria to receive federal loans for initiatives related to 
international governance in the area of urban development.  This law is expected to enter into effect within the next three years.

  In these municipalities, operations are regionalized and contracts are structured considering the financial and economic conditions of the entire region.  The regulation 

including taxes, control and oversight are the responsibilities of ARSESP (LCE 1,025/2007 – Articles No. 6 and No. 10).

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Establishment of ARSESP

On June 8, 2006, the State of São Paulo enacted Decree No. 50,868/2006, creating the Commission for the Regulation of Sanitation Service of the State of São Paulo 
(Comissão  de  Regulação  do  Serviço  de  Saneamento  do  Estado  de  São  Paulo),  or   “CORSANPA”,  to  regulate  basic  sanitation  services.   CORSANPA  is  directly 
subordinated  to  the  State  Secretariat  for  Sanitation  and  Water  Resources.   On  August  5,  2009,  the  State  of  São  Paulo  enacted  Decree  No. 54,644/2009,  which  revoked 
Decree No. 50,868 and regulated the composition, organization and operation of the State Sanitation Council (Conselho Estadual de Saneamento), or “CONESAN” created 
by Supplementary Law No. 7,750/1992.

The  main  duty  of  CORSANPA  was  conducting  studies  for  the  creation  of  a  regulatory  agency  for  the  basic  sanitation  industry  and  the  presentation  of  legal  and 
regulatory measures.  The completion of such duties resulted in the publication of supplementary Law No. 1,025/2007 of December 7, 2007, which created the São Paulo 
State  Sanitation  and  Energy  Regulatory  Agency  (Agência  Reguladora  de  Saneamento  e  Energia  do  Estado  de  São  Paulo),  or  “ARSESP”,  and  partially  revoked 
Supplementary Law No. 7,750/1992.  Furthermore, Supplementary Law No. 1,025/2007 maintained CONESAN, as an advisory council to define and implement the state 
basic sanitation policy, and the State Sanitation Fund (Fundo Estadual de Saneamento) or “FESAN”.  FESAN is connected to the State Secretariat for Sanitation and Water 
Resources, and collects and manages resources that support State-approved programs, as well as the development of technology, management and human resources and a 
sanitation information system, in addition to other support programs.

In  connection  with  the  scope  of  our  services,  Supplementary  Law  No. 1,025/2007  expanded  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 our own or third-party use.

In addition, the 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;

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

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.

ARSESP regulates the basic sanitation services that belong to the State, relating to the federal and municipal jurisdictions and prerogatives, and is responsible for:  











the compliance with and enforcement of state and federal basic sanitation legislation;

the publication of the organizational platform for the services, indicating the types of services provided by the State, as well as the equipment and facilities 
that compose the system;

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

the establishment, in accordance with the tariff guidelines defined by Decree No. 41,446/96, of tariffs and other methods that provide compensation for our 
services, adjustment and review of such tariffs and methods to ensure the financial-economic balance of services and low-cost tariffs through mechanisms 
that increase service efficiency and lead to the distribution of productivity gains to society; and

the approval, oversight and regulation (including tariff issues) of the sewage treatment and wholesale water supply agreements entered into between the state 
supplier and other suppliers, pursuant to Article 12 of the Basic Sanitation Law.

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With respect to municipal basic sanitation, ARSESP oversees and regulates services (including tariff issues) that have been delegated by municipalities to the State as a 

result of cooperation agreements that authorize program agreements between the municipalities and us for as long as it is convenient to the municipality’s public interest.

For  its  services,  ARSESP  charges  0.50%  of  the  annual  total  invoice  from  gross  operating  revenue  (excluding  revenues  relating  to  the  construction  of  concession 
infrastructure)  of  the  municipality.   This  fee  is  collected  from  municipalities  that  have  a  signed  program  agreement  with  us  and  the  municipalities  located  in  the 
metropolitan regions.

Rules Enacted by ARSESP 

In 2009 ARSESP enacted rules regarding the following:

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



general terms and conditions for water and sewage services;

procedures for communication regarding any failure in our services;

penalties for deficiencies in the provision of basic sanitation services; and 

procedures for confidential treatment of our customers’ private information.

Consumer Relations in the State of São Paulo

In 2011, ARSESP altered the standard contract that we are required to use in our relationships with retail customers.  This alteration requires that invoices be sent to the 
user  of  the  service  rather  than  the  owner  of  the  property.   Since  2011,  we  have  implemented  several  measures  and  instituted  new  rules  to  update  our  client  registry.  
Currently, more than 90% of our water and sewage connections are billed to the user of our services, as foreseen under current regulations.  We estimate that this change 
will affect ongoing legal disputes, particularly those regarding collection procedures, as well as business discussions in general.  However, since this change is still being 
implemented, we are not currently able to predict its impact on our business.  Regarding changes to the communication process for the reporting of failures, ARSESP has 
modified the rules and standards for supervision and reporting of incidents.  We have implemented these requested changes.  Currently, we receive a portion of the reported 
incidents online, through  the Incident  Reporting System (“Sistema de Comunicação de Incidentes”) established by ARSESP, which introduces greater transparency and 
control to our operations. 

In  2013,  we  established  procedures  for  communicating  scheduled interruptions  in  the  provision  of  water  services  by  developing  the  Communication  of  Scheduled 

Interruptions of Basic Sanitation, or “SISCIP-S”.  

We  are  currently  evaluating  the  enforceability  and  legality  of  some  of  these  rules.   Implementation  of  these  rules  started  during  2011,  is  currently  ongoing,  and  is 
expected to continue for the next few years.  The implementation of these rules will impact our commercial and operations processes, and may adversely affect us in ways 
we cannot currently predict. 

We are attentive to these regulatory changes, have been working toward meeting ARSESP’s requirements and recommendations, and have presented technical, legal 
and  factual  reasons  for  any  conduct  that  ARSESP  may  find  irregular.   As  a  result,  we  are  subject  to  few  regulatory  infractions  and  to  limited  fines.   See  “Risk 
Factors—Risks Relating to Our Business—“Current regulatory uncertainty, especially with regard to implementation and interpretation of the Brazilian Basic Sanitation 
Law, may have an adverse effect on our business

Following  the  increase  in  the  demand  for  regulatory  work,  we  created  a  regulatory  affairs  department,  which  focuses  on  regulatory  matters  and  has  centralized 

communication with the regulatory agencies, driving business to the new regulatory regime and proposing matters in which we have an interest to ARSESP.

In  April 2011,  we  created  a  specific  department  in  our  Financial,  Economic  and  Investor  Relations  Office  responsible  for  costs  and  tariffs,  given  the  subject’s 
importance to the continuation of our business.  We also created a statutory Regulatory Affairs Committee.  The committee is composed of our Chief Executive Officer, our 
Chief Financial Officer and Investor Relations Officer, our Metropolitan Officer and our Regional Systems Officer and is responsible for defining the guidelines, strategies 
and regulatory recommendations for our Company and coordinating the work of the Regulatory Affairs Department.

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Our Current Concession Agreements

The  current  concessions  are  based  on  a  standard  form  of  agreement  between  us  and  the  relevant  municipality.   Each  agreement  received  the  prior  approval  of  the 
legislative council of each municipality.  The assets comprising the existing municipal water and sewage systems are transferred from the municipality to us in order for us 
to provide the contracted services.  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 from the date of acquisition of the concession, assuming a discount of at least 12%.  For reference purposes, ARSESP has set the discount rate for our 
contracts at 8.06% since 2011.

The main provisions of our existing concession agreements are as follows:











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

according to the municipal laws authorizing the concession, we are permitted to collect tariffs for our services and tariff readjustments follow the guidelines 
established by the Basic Sanitation Law and ARSESP;

as a general rule, to date, we are exempt from municipal taxes, and no royalties are 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 water transmission lines, and sewage lines; and

upon termination of the concession, for any reason, we are required to return the assets that comprise the municipality’s water and sewage system to the 
municipality and the municipality is required to pay us the non-amortized value of the assets relating to the concession.

These assets have been considered to be intangible assets since January 2008.  See Note 3.8 to our financial statements.  Under concession agreements executed prior 

to 1998, the reimbursement for the 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 agreement.

Our new agreement model follows the provisions of the Basic Sanitation Law.  Its main contractual provisions include the joint execution of planning, supervision and 

regulation of services, the appointment of a regulatory authority for the services, and periodic disclosure of financial statements.

Furthermore, the economic and financial formulas in new agreements must be based on the discounted cash flow methodology and on the revaluation of returnable 
assets.   Pursuant  to  the  Basic  Sanitation  Law,  the  preexisting  assets  will  be  returned  to  the  grantor  of  the  concession.   We  will  carry  out  all  new  investments  and  the 
municipalities will record them as assets.  The municipalities will then transfer possession of these assets to us for our use and management and will also record a credit in 
the same amount of the assets recorded in our favor.  According to Article 42 of the Basic Sanitation Law and the new agreement model, 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 operation of the services.  
These receivables may also be used as guarantees in funding operations.

Another important development was that the new agreement model includes exemptions from municipal taxes applicable on our operational areas and the possibility of 

the revaluation of our assets that existed prior to the execution of the program agreements in cases involving the early resumption of services by the concession authority.

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As of December 31, 2015, we provided water and sewage services to 364 municipalities.  The majority of these concessions have 30-year terms.  Due to court orders, 
we  temporarily  suspended  our  services  in  3  other  municipalities  (Iperó,  Macatuba  and  Cajobi).   For  more  information,  see  “Item 8.A.  Financial  Statements  and  Other 
Financial Information—Legal Proceedings”.  Between January 1, 2007 and December 31, 2015, we entered into agreements with 278 municipalities (including our services 
agreement  with  the  city  of  São  Paulo)  in  accordance  with  the  Basic  Sanitation  Law,  of  which  4  were  entered  into  in  2015.   As  of  December 31,  2015,  these  278 
municipalities  accounted  for  78.6%  of  our  gross  operating  revenues  (including  revenues  relating  to  the  construction  of  concession  infrastructure).   In  addition  to  the 
contracts  that  have  30-year  terms,  the  municipalities  entered  into  cooperation  contracts  with  the  State  of  São  Paulo,  delegating  the  regulation  and  monitoring  of  the 
provision of services to ARSESP.  As of December 31, 2015, 53 of our agreements or concessions had expired but we continued to provide water and sewage services to 
these  53  municipalities  and  were  in  negotiations  with  these  municipalities  to  execute  program  agreements  to  substitute  the  expired  concessions.   From  January 1,  2016 
through 2030, 36 concessions will expire. 

Municipalities  have  the  inherent  power  under  Brazilian  law  to  terminate  concessions  prior  to  their  contractual  expiration  dates  for  reasons  of  public  interest.   The 
municipality of Mauá, which we previously served, terminated our concession in December 1995.  As arranged, we transferred ownership of the related assets as well as of 
the provision of services to the Municipality of Mauá.  In another contract we entered into with the Basic Sanitation Company of the Municipality of Mauá (Saneamento 
Básico do Município de Mauá – SAMA) and the Municipality of Mauá, we were responsible for providing water on a wholesale basis.  However, neither SAMA nor the 
Municipality of Mauá complied with the stipulations of the agreement, culminating in a lawsuit brought against both parties.  We demanded monetary compensation for our 
basic sanitary services.  In a separate suit, we are demanding SAMA pay us the correct amount of tariffs for water services it has been receiving without our authorization at 
a cost below that contracted.

The receivables owed to us by Mauá, due to the termination of the concession, total R$85.9 million and have not been recognized in our financial statements due to the 
uncertainty of our ability to collect them as of December 31, 2015. Despite these developments, we currently supply water on a wholesale basis to Mauá. In January 2016, 
the municipality of Mauá executed a Protocol of Intentions with us for the preparation of studies and evaluations aiming to resolve commercial relations and existing debts 
between the municipality and us. 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. 
However, we cannot be certain that other municipalities will not seek to terminate their concessions in the future.  See “Item 3.D. Risk Factors—Risks Relating to Our 
Business—Municipalities may terminate our concessions before they expire in certain circumstances.  The indemnification payments we receive in such cases may be less 
than the value of the investments we made”.

In addition, we are currently involved in litigation with respect to municipalities that intend to expropriate our water and sewage systems, or to terminate concession 
agreements  before  paying  us  any  indemnification.   For  a  detailed  discussion  on  these  proceedings,  see  “Item 8.A.  Financial  Statements  and  Other  Financial 
Information—Legal Proceedings”.

Operations in the City of São Paulo and Certain Metropolitan Regions

We are a concessionary of the state of São Paulo tasked with providing operate basic sanitary services in metropolitan regions, microregions and urban conglomerates 

instituted by state law.

The State of São Paulo, pursuant to Article No. 25, Paragraph 3 of the Brazilian Constitution, enacted the LCE  to create the metropolitan regions of São Paulo (LCE 
No. 94/1974), Baixada Santista (LCE No. 815/1996), Campinas (LCE No. 870/2000), Vale do Paraíba and Litoral Norte (LCE No. 1,166/2012), and Sorocaba No. (LCE 
1,241/2014) and the urban clusters of Piracicaba (LCE No. 1,178/2012) and Jundiaí (LCE No. 1,146/2011).  

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In January 2015, the Federal Government issued the Metropolitan Bylaws (Law No. 13,089/2015), which within the next three years will establish:  general guidelines 
for  the  planning,  management  and  performance  of  public  interest  initiatives  in  metropolitan  regions  and  in  urban  clusters  instituted  by  the  states;  the  general  planning 
standards for integrated urban development and other international governance instruments; and the criteria to receive federal loans for initiatives related to international 
governance in the area of urban development.  This law is expected to enter into effect in the next three years.

There are some pending cases before the Brazilian Supreme Court regarding whether the right to execute concession and program agreements in metropolitan regions 
belongs to the states or to the municipal governments.  In March 2013, the Brazilian Supreme Court decided a pending case on this matter related to the state of Rio de 
Janeiro.   In  its  decision,  a  majority  of  the  court  held  that  the  state  of  Rio  de  Janeiro  must  set  up  new  entities  to  oversee  the  planning,  regulation  and  auditing  of  basic 
sanitation services in its metropolitan region with the non-partisan participation of relevant municipalities.  The Brazilian Supreme Court has yet to clarify the effects and 
extension  of  its  decision  which  modifies  the  ability  of  independent  municipalities  in  metropolitan  regions  to  exercise  their  constitutional  competencies,  including  those 
related  to  the  provision  of  basic  sanitation  services,  due  to  public  interest  initiatives  designed  to  provide  adequate  and  continuous  service  to  the  residents  of  these 
municipalities.

The  São  Paulo  metropolitan  region  accounted  for  67.3%  of  our  gross  operating  revenue  in  2015  (excluding  revenues  relating  to  the  construction  of  concession 
infrastructure).  We cannot predict how the shared management of these operations will be carried out in the São Paulo metropolitan region and other metropolitan regions 
we  operate  in  or  what  effect  it  may  have  on  our  business,  financial  condition  or  results  of  operations.   See  “Item 3.D.  Risk  Factors—Risks  Relating  to  Our 
Business—Current regulatory uncertainty, especially with regard to implementation and interpretation of the Brazilian Basic Sanitation Law, may have an adverse effect on 
our business”.

On  June  18,  2009,  Municipal  Law  No.  14,934/2009  revoked  Law  No.  13,670/2003,  which  had  assigned  to  the  municipalities  alone  the  responsibility  of  planning, 
regulating and overseeing water and sewage service provision in the city of São Paulo.  On June 23, 2010, the state and the city of São Paulo executed a formal agreement 
which  aims  to:  share  the  performance  of  planning;  delegate  to  ARSESP  the  responsibility  of  overseeing  and  regulating,  including  tariff  regulation;  and  authorize  the 
continuation of water and sewage services in the city of São Paulo for a 30 year period, with the option of extending for an additional 30 year period  See “Item 3.D. Risk 
Factors—Risks Relating to Our Business—The terms of our agreement to provide water and sewage services in the city of São Paulo could have a material adverse effect 
on us”.

Tariff Regulation in the State of São Paulo

The tariffs for our services are subject to Federal and State regulation.

On December 16, 1996, the Governor of the State of São Paulo issued a decree which updated the rules of the tariff system allowing us to continue to set our own 
tariffs according to the guidelines determined by these rules. We used to set our tariffs based on the general objectives of maintaining our financial condition and preserving 
“social equality” 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 of consumption; and

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

social and economic conditions of residential customers.

With the enactment of the Basic Sanitation Law and Federal Consortium Law, we are prohibited from planning, overseeing and regulating services, which includes 
determining the tariff policy to be adopted.  Such activities are to be exercised by the owner of the concession.  Other than the responsibility for planning, the remaining 
activities may not be delegated.

The current tariff structure maintains different tariff schedules, depending upon whether a customer is located in the São Paulo metropolitan region or the Regional 
Systems.  There are four levels of volume consumed for each category of customer, except for the residential-social and shantytown (favelas) categories.  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.  Customers are billed on a monthly basis.  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 nonphysical loss resulting from faulty water meters.  Sewage billing is included as part of the water bill 
and is based on the water meter reading.  We are also authorized to enter into individual contracts with certain customers, such as municipalities, to supply water or sewage 
services on a wholesale basis.

Furthermore, since Law No. 11,445/2007 permits municipalities to create their own regulatory agencies rather than being subjected to overview by ARSESP, a number 
of municipalities created their own regulatory agencies.  The municipality of Lins, which decided in 2007 to create its own regulatory authority, revisited this decision in 
2010 and transferred the regulation of water activities, including the setting of tariffs, to ARSESP.  The municipality of Lins has reserved, however, the power to ultimately 
approve the tariff set by ARSESP.

The municipalities in which the hydrographic basins of the Piracicaba, Capivari and Jundiaí rivers are located created a consortium known as the Regulatory Agency of 
Sanitation Services for the Piracicaba, Capivari and Jundiaí River Basin (Agência Reguladora dos Serviços de Saneamento das Bacias dos Rios Piracicaba, Capivari e 
Jundiaí), or ARES-PCJ, in 2011 to regulate and supervise our activities in those areas, and for similar purposes, in November 2013 the Regulatory Agency of São Bernardo 
do Campo (AR/SBC) was created.
 As a result of the creation of ARES/PCJ, we are currently involved in legal proceedings in which ARES/PCJ is claiming that it has 
jurisdiction over the regulation and supervision of our activities in three municipalities (Piracaia, Mombuca and Santa Maria da Serra).  We cannot predict the outcome of 
this  case  or  how  it  may  impact  our  business.   See  “Item 3.D.  Risk  Factors—Risks  Relating  to  Our  Business—Current  regulatory  uncertainty,  especially  with  regard  to 
implementation and interpretation of the Brazilian Basic Sanitation Law, may have an adverse effect on our business”.

The  number  of  judicial  disputes  concerning  the  regulation  and  oversight  of  services  in  areas  served  by  us  and  regulated  by  ARSESP  has  increased  since  2012.  

Agencies may continue to be created to regulate and oversee our services.

The Current Water Crisis 

Prior to 2014, we planned our supply of water to the São Paulo metropolitan region according to the water supply during the driest period on record, from 1953 to 
1954.   However,  water  inflow  to  the  Cantareira  reservoirs  throughout  2014  and  most  of  2015  was  less  than  half  the  inflow  of  the  previously  most  critical  year,  1953.  
Consequently, the volume of water stored in the reservoirs in 2014 and 2015 significantly declined until September 2015, which was the first month since the beginning of 
the current water crisis that our reservoirs stored more water than the year before.  Average monthly water production in 2015 was of 52.0 m³/s, compared to 62.2 m³/s in 
2014 and 69.1 m³/s in 2013.

From  May  2014  to  December  2015,  it  was  not  possible  to  withdraw  water  by  gravity  from  the  PCJ  River  Basin  reservoirs  intake.   Pumping  water  out  from  the 
technical reserve, whose elevation is below the intake, was necessary.  Water production in the Cantareira system decreased from 31.77 m³/s in February 2014 to 14.93 m³/s 
in December 2015.  In December 2015, the volume of water of the technical reserve was restored, allowing us to withdraw water by gravity from the PCJ River Basin 
reservoirs intake and making it no longer necessary to pump water out from the technical reserve.  As a result of the increase of the volume of water stored in our reservoirs 
in February 2016, we requested that ANA and DAEE increase the volume of water that we are permitted to extract from the Cantareira System.  As of February 2016, we 
are permitted to extract 23.0 m³/s of water from the Cantareira System.  Together with other water systems that were used to support the Cantareira System, the Alto Tietê 
System reached its maximum production capacity during the crisis period, which allowed for the transfer of treated water to areas previously supplied by the Cantareira 
System. 

64

The Guarapiranga System, with a storage capacity of 171 billion liters of water, has kept favorable levels of water availability since the beginning of the drought and 
has been the system with the greatest treated water production since February 2015 and throughout the year of 2015.  Accordingly, its water production levels have been 
high, allowing for the transfer of more treated water to areas that were previously supplied by the Cantareira System.  Water production in this system increased from 13.77 
m³/s in February 2014 to 15.33 m³/s in December 2015.  In January 2016, the Cantareira System regained its post as the main water producing system in the Metropolitan 
Region of São Paulo, servicing a population of 5.7 million people, while the Guarapiranga System serviced 5.2 million people in the same time period.  Monthly production 
of the Cantareira System was of 15.88 m³/s in January 2016 compared to 14.06 m³/s in January 2015.

For  more  information  on  the  water  production  systems  which  we  use  to  produce  water  for  the  São  Paulo  metropolitan  region  see  “Item  4.B.  Our 

Operations—Description of Our Activities—Water Operations—Water Resources”.

Cantareira System

The Cantareira System is located in the northern area of the São Paulo metropolitan region.  It uses water extracted from the PCJ River Basin and the Juqueri River 
Basin and is comprised of six reservoirs interconnected by a complex water network of tunnels and pipes, located along the municipalities of São Paulo, Mairiporã, Nazaré 
Paulista, Piracaia, Vargem, and Joanópolis.  The latter two are located on the border of the state of Minas Gerais, approximately 100 kilometers from the city of São Paulo.  
Gravity forces the flow of water from one reservoir to another and once water reaches the Paiva Castro reservoir, located in the Juqueri River Basin, it is pumped to the 
Guaraú water treatment station. 

Under  normal  conditions,  this  system  supplies  water  to  approximately  8.9  million  people,  with  an  average  extraction  of  up  to  33  m³/s  to  serve  the  São  Paulo 

metropolitan region.  An additional 5 m³/s may be released to serve the metropolitan region of Campinas and Jundiaí that is located downstream from the reservoirs. 

Water Inflow to the Cantareira System

During the October 2013 – March 2014 rainy season rainfall and water inflow levels into the reservoirs reached the lowest levels in 84 years of recorded rainfall in the 
region.  This drought persisted in the rainy season between October 2014 and March 2015, making rainfall and water inflow levels reach the lowest levels in 85 years of 
recorded rainfall in the region.  During the October 2015 – March 2016 rainy season, the level of rainfall in the region returned to the normal levels expected for the season.

The table below sets forth water inflow (volume of water that flows into the reservoirs or natural inflow from river basin), taking into account:  (i) historical average 
and  minimum  flows;  (ii)  1953  as  the  driest  year  on  record;  (iii)  flow  along  the  hydrological  year,  from  October  to  September;   (iv)  inflow  during  the  2014-2015 
hydrological year and (v) inflow during the unconcluded 2015-2016 hydrological year (up to March 2016). 

Water Inflow
Historical Average
Historical Minimum
Drought of 1953
2013/14
2014/15

2015/16

Oct.

Nov.

Dec.

Jan.

Feb.

March

April

May

June

July

Aug.

Sep.

For the month of

30.6
14.0
17.5
25.1
5.2
14.8 

35.0
14.0
26.0
22.1
8.8
27.1 

53.1
21.8
31.5
22.5
16.0
52.3 

70.9
26.9
26.9
15.4
11.5
73.8 

65

(in m³/s)

73.9
27.6
34.5
10.5
40.7
49.6

66.9
28.1
29.8
18.9
42.6
69.8

48.4
24.7
34.6
17.2
18.1

24.1

38.4
19.9
23.8
10.1
14.0

35.3
16.5
20.7
10.0
16.2

28.8
13.9
17.6
6.4
11.3

24.5
12.0
16.3
8.2
5.8

25.6
11.8
16.2
9.0
18.3

Since March 2014, ANA and DAEE have regulated the volume of water we were permitted to extract from the Cantareira System, which affected our supply of water 
to the São Paulo metropolitan region.  The volume of water we are allowed to extract from the Cantareira system is communicated to us by DAEE and ANA via monthly 
notices according to the behavior of rainfall, water inflow, level of water in our reservoirs and our requests to extract water based on this information.  Compared to the 33 
m³/s we were allowed to extract from the PCJ River Basin and Juqueri River Basin before March 2014, in December 2015 we were permitted to extract 13.5 m³/s.  As a 
result of the return of normal rainfall levels in the rainy season that began in October 2015 and the return of normal water inflow levels to the reservoirs in the Cantareira 
system, as of February 2016 we have been allowed by ANA and DAEE to extract 23.0 m³/s from the Cantareira System.

The following table sets forth the level of water stored in the systems that serve the São Paulo metropolitan region as of December 2014, March 2015 and December 

2015, and March 2016, at the end of the rainy season: 

March 2016

December 2015

March 2015

December 2014

Total Storage 
Capacity

For the month

(in millions of m3)

Cantareira
Guarapiranga
Rio Grande
Rio Claro
Alto Tietê
Cotia
(*)           Cantareira system total storage capacity = 982.0 million m³ availability above water intake plus (+) 287.5 million m³ availability below water intake (technical 
reserve).

1,269.5*
171.19
112.18
13.67
573.81
16.50

290.69 
147.12 
106.18 
9.71 
135.55 
14.20 

186.74
145.81
109.34
5.96
130.91
10.75

641.90
150.01
108.41
14.02
247.94
16.53

71.18
69.57
80.94
4.51
69.63
5.20

  In order to continue to meet consumer demand of the São Paulo metropolitan region and decrease water production at the Cantareira System to the limits set by ANA 

and DAEE, in 2014 and 2015 we adopted the following measures to maintain continuous water supply to the São Paulo metropolitan region: 











using treated water from other production systems to serve consumers originally supplied by the Cantareira system; 

bonus program/contingency tariff; 

reducing pressure in the pipes in order to decrease leakage; 

adjusting the volume of treated water sold to municipalities that operate their own distribution network, due to the reduced availability of water; and

extracting water from the technical reserve.

The  first  four  measures  resulted  in  significant  water  savings  and  helped  to  offset  the  reduced  volume  of  water  extracted  from  the  Cantareira  System.   Moreover, 

extracting water from the technical reserve was critical for the continuous supply of water to the population.

As a result of the return of normal rainfall levels in the rainy season which began in October 2015, as of January 2016 it was no longer necessary to pump water out of 
the technical reserve of the PCJ River Basin  and we modified the rules for the offer of discounts (bonus) in February 2016.  On March 24, 2016, as a result of the increased 
level  of  rainfall  and  increased  predictability  of  the  level  of  water  in  our  reservoirs,  we  requested  to  ARSESP  the  cancellations  of  our  Water  Consumption  Reduction 
Incentive Program and of the Contingency Tariff.  ARSESP approved our requests on March 31, 2016 and the aforementioned policy changes shall be applied to water 
meter  readings  recorded  as  of  May  1,  2016.   In  addition,  as  of  December  2015,  the  time  period  during  which  water  is  pumped  out  at  reduced  pressure  in  the  water 
distribution lines is returning to the normal nighttime period, as it was prior to the water crisis.

Using Water from Other Production Systems to Serve Consumers Originally Supplied by the Cantareira System 

66

The Cantareira System is part of the Integrated Water Supply System (Sistema Integrado de Abastecimento de Água), or “SIM”, of the São Paulo metropolitan region 
together with another seven production systems that are interconnected through a system of large water mains known as the Metropolitan Water Main System (Sistema 
Adutor  Metropolitano),  or  “SAM”.   SAM  transports  treated  water  to  regional  reservoirs.   From  there,  treated  water  is  distributed  to  the  population  through  distribution 
networks.  This system serves approximately 20 million people.

Throughout the years, we have expanded the capacities of a number of SIM production systems and important SAM water mains, which further integrated the systems 
and allowed, among other things, the transfer of water from different production systems to areas that, under normal conditions, would have been supplied by the Cantareira 
System.  The Alto Tietê and Guarapiranga systems were the ones that most contributed to that end. 

Due to its proximity, the Alto Tietê System has become the main support system for the Cantareira System, which consequently led to the decrease in the volume of 
water stored in the Alto Tietê reservoirs.  As a precautionary measure, water production in this system was decreased from 14.97 m³/s in February 2014 to 11.91 m³/s in 
March 2015.  As a result of the improvement in water levels in the Cantareira System, water production in the Alto Tietê System decreased from 13.24 m³/s in December 
2015 to 11.57 m³/s in March 2016.

Moreover, the Guarapiranga System, with a storage capacity of 171 billion liters, during the water crisis supplied water to an additional 1.4 million people of the south 
and southeast regions of the city of São Paulo who were previously served by the Cantareira System.  As a result, the number of people served by the Guarapiranga System 
increased from 3.8 million people before the current water crisis to 5.2 million during the crisis.  Water production in this system increased from 13.77 m³/s in February 
2014 to 14.65 m³/s in March 2015.  This system produced 15.33 m³/s of water in December 2015 and 13.95 m³/s in March 2016.

Throughout 2014 and 2015, with the adoption of these measures, almost 3 million people who used to be served by the Cantareira System were then served by other 

systems. 

Bonus Program

In February 2014, we implemented a water consumption reduction incentive program based on a bonus system, pursuant to which customers served by the Cantareira 
System who achieve a 20% reduction in water consumption are entitled to a 30% discount on their service bill.  Initially, this incentive program was scheduled to last seven 
months or until the water level in the reservoirs normalized and became sufficient to supply the customers in the São Paulo metropolitan region served by the Cantareira 
System.

In  April  2014,  the  incentive  program  was  extended  for  the  entire  São  Paulo  metropolitan  region  until  the  end  of  2014  or  until  the  water  level  in  the  reservoirs 
normalized.   In  May  2014,  the  incentive  program  was  extended  to  those  municipalities  we  served  in  Piracicaba,  Capivari  and  the  Jaguari River  Basin  in  the  Cantareira 
System catchment area and was valid for bills issued between June 2014 and December 2014.  This latter extension of the incentive program was suspended on April 17, 
2015.

In October 2014, we implemented changes to the discount ranges in the bonus program: (i) customers who reduce water consumption equal to or more than 10% and 
less than 15% became entitled to a 10% discount on their service bill; (ii) customers who reduce water consumption equal to or more than 15% and less than 20% became 
entitled to a 20% discount on their service bill; and (iii) customers who reduce water consumption 20% or more became entitled to a 30% discount on their service bill.  

In  December  2014,  we  extended  the  validity  of  the  Water  Consumption  Reduction  Incentive  Program  until  the  end  of  2015  or  until  reservoir  levels  normalize, 

whichever occurs first.

In December 2015, we modified our discounts (bonus) program, which aims to incentivize consumers to reduce their water consumption through the offer of discounts 
(bonus) to consumers that would below average amounts of water, by updating the reference value used to determine the discounts.  Prior to this modification, the reference 
value by which we calculated the discounts was the average consumption of our customers in the period between February 2013 and January 2014.  As of December 2015, 
we modified the reference value, which is currently set at 78% of the prior reference consumption value.  The updated reference value began to be applied to our customers’ 
bills as of February 1, 2016.  The bonus ranges of 10%, 20% and 30%, were maintained, following the rules of our discount (bonus) program, which established that if a 
client consumes between 10% and 15% less water during a certain period compared to his reference value, he will obtain a discount of 10% in his water bill, if he consumes 
between 15% and 20% less water during a certain period compared to his reference value, he will obtain a discount of 20% in his water bill, and if the client consumes 20% 
less water, he will obtain a discount of 30%.

67

On  March  24,  2016  as  a  result  of  the  increased  level  of  rainfall  and  increased  predictability  of  the  level  of  water  in  our  reservoirs,  we  requested  to  ARSESP  the 
cancellation of our Water Consumption Reduction Incentive Program.  ARSESP approved our request on March 31, 2016 and the aforementioned policy change shall be 
applied to water meter readings recorded as of May 1, 2016.

Contingency tariff

In January 2015, ARSESP authorized us to implement a contingency tariff mechanism consisting of additions to water bills for customers who do not reduce their 
consumption.  This contingency tariff mechanism is such that up to a 20% increase from the average consumption results in a tariff increase of 40% and consumption that 
exceeds 20% of the average results in a tariff increase of 100%.

In December 2015, ARSESP authorized us to extend the contingency tariff, maintaining the current rules and conditions for its application, until December 31, 2016 or 

until there are more predictable inflows of water into our systems.

On  March  24,  2016  as  a  result  of  the  increased  level  of  rainfall  and  increased  predictability  of  the  level  of  water  in  our  reservoirs,  we  requested  to  ARSESP  the 
cancellation of the Contingency Tariff.  ARSESP approved our request on March 31, 2016 and the aforementioned policy change shall be applied to water meter readings 
recorded as of May 1, 2016.

Reducing Pressure in the Water Distribution Lines in order to Decrease Leakage  

Reducing water pressure in water distribution lines through operating maneuvers is a routine measure taken by sanitation companies to reduce water losses.  We have 

been adopting this operating measure in the water supply network of the São Paulo metropolitan region since 1997. 

Due to the severity of the water crisis, during 2014 and 2015 we intensified measures to decrease water pressure in the water supply network.  As a result, some areas 
of  the  São  Paulo  metropolitan  region  temporarily  had  less  water  availability  during  part  of  the  day  and  night.   The  improvement  of  hydraulic  and  data  transmission 
equipment allows us to monitor the volume of water used in a certain region in real time, remotely gauge existing pressure in the local water distribution line, and reduce 
the volume of water loss from leakages and mitigating any effects on water supply. 

As a result of the return of normal rainfall levels in the rainy season which began in October 2015, as of December 2015, the time period during which water is pumped 

out at reduced pressure in the water distribution lines is returning to the normal nighttime period, as it was prior to the water crisis.

Adjusting the Volume of Treated Water Sold to Municipalities that Operate their own Distribution Network 

One  of  the  measures  adopted  to  offset  the  decreased  volume  of  water  extracted  from  the  Cantareira  System  was  to  reduce  the  volume  of  water  transferred  to 

municipalities located in the area covered by the Cantareira System that we serve on a wholesale basis.  The volume of water transferred was reduced by almost 2 m³/s. 

Extracting Water from the Technical Reserve 

When our simulations indicated that the working volume of the Cantareira System would be depleted before the following rainy season, we obtained an authorization 

from ANA and DAEE to use part of the water from the technical reserve of the Cantareira System.

68

Water from the technical reserve had never been used before.  As a result, we built dams, water lines, water pipe facilities, and floating pumps to extract this water.  
We began using the first layer of the technical reserve, totaling 187 billion liters of water, in mid-May 2014, and the second layer, totaling 105 billion liters of water, at the 
end of October 2014. With the return of normal rainfall during the October 2015 – March 2016 rainy season, the technical reserve was fully restored in December 2015. 

Water Savings 

As of March 2016, the measures we adopted produced the following results:









the implementation of the bonus program accounted for 22.8% of water savings;

the reduction of pressure in water distribution lines and initiatives mitigating water losses accounted for 35.9% of water savings;

the transfer of water between production systems accounted for 34.8% of water savings;

the adjustment of the volume of treated water sold to municipalities that operate their own distribution network accounted for 6.5% of water savings.

Emergency Projects and Projects Implemented to Meet the Water Demand of the São Paulo Metropolitan Region

In addition to  the  abovementioned measures, we made and  are making short and medium-term investments  in projects to increase water availability, transfer water 

between different reservoir systems and expand water treatment production capacity.

By  the  end  of  the  decade,  our  production  of  treated  water  shall  expand  by  10.9  m³/s  and  an  additional  10.6  m³/s  will  be  available  to  our  reservoirs  through 
interconnections to other reservoirs in the state of São Paulo, which may be used by us if there are low levels of water in our reservoirs.  The conclusion of these projects 
will result in improved water security for SIM.  The main projects include:













Alto Tietê System – transfer of an additional 1 m³/s from the Guaió River to the Taiaçupeva reservoir, in order to recover the reserve volume of the Alto 
Tiête reservoir.  This project was concluded in June 2015; 

Alto Tietê System – transfer of additional 4.0 m³/s from Rio Grande - Billings reservoirs to the Alto Tietê System.  This project was concluded in September 
2015;

Guarapiranga  System  –  transfer  of  an  additional  1  m³/s  of  which  results  from  the  expansion  of  the  transfer  capacity  of  the  Billings  reservoir  to  the 
Guarapiranga reservoir;  This project was concluded in December 2015;

Interconnection of the Jaguari (Paraíba  do Sul River  Basin) and  Atibainha  (Cantareira System River  Basin) reservoirs  –  The purpose of  this project is to 
recover water levels and increase the water security of the Cantareira System.  The interconnection will allow water availability to increase in the Cantareira 
System by 5.13 m³/s (annual average) to 8.5 m³/s (maximum) by transferring water from the Jaguari reservoir to the Atibainha reservoir.  The construction on 
the  interconnection  began  in  February  2016  and  is  expected  to  be  concluded  in  2017.  For  more  information,  see  “—History  and  Development  of  the 
Company—Capital Expenditures Program”.

Alto Tietê System – transfer of an additional 2.5 m³/s from the Itapanhaú river to the Biritiba reservoir, providing more volume to the Alto Tietê river.  This 
project is currently under development and is expected to be concluded in 2017;

Guaraparinga System – transfer of an additional 1 m³/s from the Alto Juquiá river to the Santa Rita Creek, in order to increase the volume of water in the 
Guarapiranga reservoir.  This project is currently under development and is expected to be concluded in 2017; and

69



Implementation of the São Lourenço Production System:  the project was initiated in April 2014 and is expected to begin operations at the end of 2017.  This 
system  will  have  an  average  water  treatment  capacity  of  6.0  m3/s.  For  more  information,  see  “—History  and  Development  of  the  Company—Capital 
Expenditures Program”.

The Drought Committee

On  February  3,  2015,  the  State  approved  Decree  No.  61,111,  which  established   the  Drought  Committee  for  the  São  Paulo  metropolitan  region  (Comitê  de  Crise 
Hídrica  no  Âmbito  da  Região  Metropolitana  de  São  Paulo),  or  “Drought  Committee”,  as  coordinated  by  the  State  Department  for  Sanitation  and  Water  Resources 
(Secretaria de Saneamento e Recursos Hídricos).

The Drought Committee’s main purposes are exchanging information and planning joint actions between its members in relation to the drought affecting regions in the 
state.  The Drought Committee shall be composed of the Secretaries of (a) Sanitation and Water Resources (who shall chair the Drought Committee); (b) Chief of Staff; (c) 
Health;  (d)  Public  Security;  (e)  the  Environment;  (f)  Agriculture  and  Supplies;  (g)  Energy;  and  (h)  the  State  Coordinator  of  Civil  Defense.   In  addition,  if  invited,  the 
following  parties  may  also  compose  the  Drought  Committee:  the  mayors  of  São  Paulo  and  Campinas,  as  well  as  the  Chairmen  of  (a)  the  Intermunicipal  Greater  ABC 
Consortium (Consórcio Intermunicipal do Grande ABC); (b) the Development Consortium of the Alto Tietê Municipalities (Consórcio de Desenvolvimento dos Municípios 
do Alto Tietê); (c) the Intermunicipal Consortium of the Juqueri Basin (Consórcio Intermunicipal dos Municípios da Bacia do Juqueri); (d) the Intermunicipal Consortium 
of  the  Western  Region  of  the  São  Paulo  Metropolitan  Area  (Consórcio  Intermunicipal  da  Região  Oeste  Metropolitana  de  São  Paulo);  and  (e)  the  Intermunicipal 
Consortium  of  the  Southeast  Region  of  Greater  São  Paulo  (Consórcio  Intermunicipal  da  Região  Sudeste  da  Grande  São  Paulo).   Representatives  of  professional 
associations, civil society groups and public administration entities may also be included in the Drought Committee by means of invitations.  The State Chief of Staff will 
monitor the Drought Committee.

In order to fulfill its purposes, the Drought Committee will be in charge of: (i) providing the mayors of the respective São Paulo metropolitan cities and the users of the 
water system with information regarding  the status of the water systems, the severity of the water crisis and the decisions made on a governmental level regarding the 
water supply, in order to provide sufficient time for adaptation; (ii) examining alongside the city mayors the need to implement restrictions on the use of drinking water for 
purposes other than human consumption and animal consumption, by means of enacting local law; (iii) obtaining from the city mayors information necessary to update 
and/or amend contingency plans; and (iv) communicating to the public measures and risks related to restrictions on the supply of drinking water. 

Marketing Channels

As  of  December 31,  2015,  we  were  the  concessionaire  for  the  provision  of  water  supply  and  collection,  treatment  and  disposal  of  sewage  services  directly  to  end 
consumers for 364 municipalities of the state of São Paulo.  We also supply water on a wholesale basis to five municipalities located in the São Paulo metropolitan region.  
It is the responsibility of these municipalities to then distribute the water to end consumers.  We provide sewage services to four of these municipalities.  Because of our 
distribution  infrastructure,  end  consumers  to  whom  we  offer  water  services  on  a  wholesale  basis  cannot  alternatively  acquire  such  services  directly  from  us.   For  more 
information on service concessions, see “—Wholesale Operations”.

Energy Consumption

Energy is essential to our operations, and as a result we are one of the largest users of energy in the state of São Paulo.  In the year ended December 31, 2015, we used 
approximately 1.64% of the total energy consumption in the state of São Paulo.  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.  In 2015, approximately 44% of our total energy consumption occurred within the “free market,” 
where we can more efficiently negotiate the supply of energy, the rest of our energy consumption comes from the Regulated Market.  Regarding the conventional electricity 
free market during the year 2015, our need of energy was supplied through two contracts, one with AES Tietê (37%) and another with Tractebel Energia SA (63%). The 
energy supply on the open market for the 2016 period will be attended by three new contracts already signed.

70

Most of the energy produced in Brazil comes from hydroelectric power plants.  The severe drought in the southeast and central-west regions of Brazil since the end of 
2013, associated with the decisions taken by the Federal Government in recent years, led to a huge increase in energy prices in 2015.  Considering this scenario, in 2015 the 
total energy costs increased 36.5% compared to 2014.

For more information on energy, see “Item 3.D. Risk Factors—Risks Relating to Our Business—We are exposed to risks associated with the provision of water and 

sewage services”.

Insurance

We maintain insurance covering, among other things, fire or other damage to our property and 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  by  means  of  public  bids  involving  major  Brazilian  and 
international insurance companies that operate in Brazil.  As of December 31, 2015, we had paid a total aggregate amount of R$6.9 million in premiums.  In addition, we 
paid  R$2.6  million  for  a  D&O  insurance  policy,  covering  R$4.0  billion  in  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  of  our  activities.   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 our type of business.

Intellectual Property 

Trademarks 

We have secured registration of our logo and composite trademark at the Brazilian Institute of Industrial Property (Instituto  Nacional da Propriedade Industrial), or 
INPI.   We  have  registered  with  the  INPI  the  following  trademarks:   “Sabesp”,  “Sabesp  Soluções  Ambientais”,  “Projeto  Tietê”,  “Programa  Córrego  Limpo”,  “Programa 
Onda Limpa”, “Prol – Programa de Reciclagem do Óleo De Fritura”, “Revista DAE”, “Ligação Sabesp”, “Agente da Gente – Sabesp na Comunidade”, “PURA – Programa 
de Uso Racional da Água”, “Sabesp Inteligência Ambiental”, “Reúso da Água”, “Uso Racional da Água”, “Parque da Integração”, “Clubinho Sabesp”, “Cauã”, “Denis”, 
“Gabi”,  “Gotucho”,  “Gota  Borralheira”,  “Dr.  Gastão”,  “Iara”,  “Ratantan”,  “Sayuri”,  “Cadu”,  “SuperH2O”,  “Sabesp  Semana  do  Meio  Ambiente”,  “Água”,  “Sabesp 
Aquífero  Guarani”,  “Água  Sabesp  Estação  Cantareira”,  “Contrato  de  Fidelização  Sabesp”,  “Esgotos  não  Domésticos  Sabesp”,  “Cine  Sabesp”,  “PEA  –  Programa  de 
Educação Ambiental” and “Sabesp Abraço Verde”.  Cauã, Denis, Gabi, Gotucho, Gota Borralheira, Dr. Gastão, Iara, Sayuri, Ratantan, Cadu and Super H2O are some of 
the characters of our children’s club (Clubinho SABESP), which is a tool for environmental education directed to children through our website.

We have also filed applications with the INPI for registration of the following trademarks:  “Parque Da Integração”, “Programa de Recuperação Ambiental”, “Signos 
Sistema De Informação Geográfica No Saneamento”, “Signos Net Sistema De Informação Geográfica No Saneamento”, “Scorpion”, “Sabesp Semana do Meio Ambiente”, 
“Água  de  Reúso  Sabesp”,  “Água  Sabesp  Aquífero  Guarani”,  “Água  Sabesp  Estação  Cantareira”,  “Contrato  de  Fidelização  Sabesp”,  “Esgotos  não  Domésticos  Sabesp”, 
“Cine  Sabesp”,  “Ecoposto  Sabesp”,  “PEA  –  Programa  de  Educação  Ambiental”,  “Projeto  Tietê”,  “Sabesp  Abraço  Verde”,  “Super  H2O”,  “Programa  Córrego  Limpo”, 
“Parque  da  Integração”,  “Eu  Sou  Guardião  das  Águas  Sabesp  Eu  Não  Desperdiço”,  “Calculadora  de  Sonhos”,  “Signos  Sistema  de  Informações  Geográficas  no 
Saneamento”, “Acertando Suas Contas Com a Sabesp”, “Parque Sabesp Mooca”, “Parque Sabesp Cangaíba” and “Parque Sabesp Butantã”.

Patents 

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We have a patent granted by the INPI for a constructive device in a building hydraulic simulator used for didactic purposes.  We have also filed patent requests for the 

following additional devices:

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a biofilter odor control unit;

a device for the removal of supernatants in the treatment of sewage;

a mobile device for the calibration of hydrometers;

rotary devices used to clean water reservoirs transported by trucks with high-pressure hydrojetting systems; and

leakage detection digital system.

We are currently awaiting responses to our patent requests from the INPI.  While the requests are under consideration, we are granted the exclusive right to use these 

devices.

Software 

We have adopted an internal policy that provides for an active and effective audit and prevention of unauthorized software.  We have acquired the software licenses for 

all our workstations.

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”  (Control  Water  Treatment  Plants),  “SGL”  (Bid  Management  System),  “SCORPION”  (Software  to  Operational  Control),  “Electronic 
Price  Quotation”  (Cotação  Eletrônica  de  Preços),  “PREGÃO  SABESP  ONLINE”,  “SISDOC  –  Sistema  de  Controle  de  Documentos”,  “Sistema  de  análise  do 
comportamento  metrológico  de  hidrômetros”,  “Modelo  padronizado  de  Laudo  técnico-MPLT”,  “SGH  -  hydrometry  management  system”  (Sistema  de  Gestão  de 
Hidrometria),  “SIA  –  Sistema  de  Informações  de  Auditoria”,  “CSI  -  Sistema  Comercial:   Serviços  e  Informações”,  “NETCONTROL  –  Sistema  de  Automação  de 
Laboratórios  de  Controle  Sanitário”,  “SACE-  Sistema  de  Atendimento  Comercial  Externo”,  “SAN  –  Sistema  de  Apoio  à  Navegação”,  “online  software  for  managing 
specific articles published in the DAE magazine”, “Dashboard”, “COP - Online Control of Water Losses”, “Sistema de Gestão de Energia Elétrica – GEL”, “CADGEO”, 
“LIGGEO” and “Sistema de Gestão de Propriedade Intelectual”.  We have also secured registration of these programs at the INPI.

AQUALOG is a Brazilian software designed to monitor water treatment through the employment of artificial intelligence.  In 2001, we completed the first rendering of 
services based on the AQUALOG software to a third party with the automation of a water treatment plant in the city of Jaguará do Sul, State of Santa Catarina.  We have 
entered into an agreement to license the software to Sanesul, in the state of Mato Grosso do Sul and to Teuto’s drugs factory, in the city of Anapólis, state of Goiás. 

SGL is an electronic price quotation system that allows us to view and control all bid and acquisition proceedings in real time.

Domain Names

We own the domain names described below which have been registered with the relevant entity in Brazil, Regristro.br:

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www.sabesp.com.br;

www.corregolimpo.com.br;

www.projetotiete.com.br;

www.revistadae.com.br;

www.blogdasabesp.com.br;

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www.blogsabesp.com.br;

www.sustentabilidadesabesp.com.br;

www.inovasabesp.com.br;

www.ondalimpa.com.br;

www.programaondalimpa.com.br;

www.clubinhosabesp.com.br; and

www.superh2o.com.br.

Environmental Matters 

Our environmental management, which is guided by the directives established in our environmental policy, is inherent to the provision of our services and the essence 
of  our  business.   In  order  to  consolidate  our  environmental  culture,  we  prioritize  the  internal  and  external  dissemination  of  knowledge  and  experience  on  the  best 
environmental practices.  There are actions of our environmental management corporate program that rely on the involvement of collaborators, the communities we service 
and partnerships with non-governmental organizations.

We have the following ongoing environmental management programs:

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development of the Corporate Greenhouse Gas Management Program (Programa Corporativo de Gestão de Emissões de Gases de Efeito Estufa), in line 
with the guidelines from the São Paulo State Climate Change Policy (PEMC), including the preparation of inventories of greenhouse gases, totaling eight 
inventories concluded since 2007; 

continuation of the actions set forth in the corporate programs for obtaining and maintaining environmental licenses and grants for the right to use water; 

the  implementation  of  the  Environmental  Education  Program  (PEA-SABESP),  an  important  tool  for  the  effectiveness  of  our  sanitation  activities,  which 
propitiates connections with the communities we service through over a hundred environmental education projects. The activities developed by the PEA are 
organized  with the  following  objectives:  increment  the  intrinsic value  of water;  protect  the environment;  preserve  the streams;  improve  the quality  of  the 
environment; valorize sanitation activities; valorize the conscious use of water; direct capacitation and production of guiding material.  Under the PEA, we 
developed actions and projects including: ecological horseback rides, the release of fingerlings, bike rides, the planting of trees, monitored visits to treatment 
plants  and  historical  archives,  mobilizations  for  the  rational  use  of  water,  educational  speeches  and  meetings  with  the  community.   In  2015,  we  held 
approximately 4.4 thousand educational speeches in schools, communities and companies, which combined were delivered to an audience of around 492.1 
thousand people.  We also held 1.5 thousand monitored visits to treatment plants, with a total of 77.6 thousand visitors;

management  of  our  institutional  representation  in  the  State  and  National  Systems  of  Water  Resources,  including  training  of  company  representatives  to 
participate in:  (i) the creation of criteria for water usage charges, (ii) the monitoring of river basin plans (Planos de Bacias), (iii) review of water bodies’ 
classifications, and (iv) analysis of legislation regarding the protection of water sources; 

implementation of the SABESP 3-Rs Program (Programa SABESP 3Rs) for the reduction, re-use and recycling of waste from administrative activities, in 
partnership with waste and recycling collecting cooperatives and which includes employee training enabling them to act as multipliers in the roll-out of the 
program; and

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

implementation of an Environmental Management System, or “EMS”, in our water and sewage treatment stations. In order to expedite the implementation 
of EMS in all stations by 2024, we are strategically reprioritizing our efforts and we have adopted a mixed model since 2015.  The ISO 14001 model will be 
maintained in the certified stations and may be expanded according to our strategy.  The other stations will adopt our own EMS model (SGA-SABESP).  As 
of March 2015, we had 51 stations with ISO 14001 certification.  As a result of the new strategy implemented in 2015, there has been a reduction in the 
number of ISO 14001 certified stations. In April 2015, we requested and obtained the recommendation for the ISO 14001 recertification of 35 stations.  A 
new external auditing cycle occurred in March  2016 maintaining the  ISO  14001 certification in 35 stations.  Currently, the  EMS has been  installed in 95 
stations and is being installed in 34 other stations, totaling 129 stations by the end of 2016.    

In  addition  to  corporate  environmental  management  initiatives,  we  have  several  projects  and  initiatives  underway  to  benefit  the  environment  by  engaging  the 
population  at  large.   In  2015,  we  invested  R$18.4  million  in  environmental  programs  and  projects  directly  concerned  with  the  development  and  implementation  of 
corporative  environmental  management  programs  as  well  as  the  Program  for  Rational  Use  of  Water  (Programa  de  Uso  Racional  da  Água  –  PURA),  among  other 
initiatives.  Other investments and related costs related to environmental management are included in the total value of operational expenses and investments mentioned in 
this annual report.

Climate Change Regulations:  Reduction of Greenhouse Gases (GHG) Emissions

We are required to comply with laws and regulations related to climate change, including international agreements and treaties to which Brazil is a signatory.

The São Paulo State Climate Change Policy (Law No. 13,798/2009), enacted on November 9, 2009, and regulated by Decree No. 55,947 of June 21, 2010, aims to 
reduce  global  emissions  of  carbon  dioxide  by  20.0%  by  2020  compared  with  2005  levels.   Brazil’s  Climate  Change  Policy  (Law  No. 12,187/2009),  enacted  on 
December 29, 2009 and regulated by Decree No. 7.390/2010 establishes a voluntary national commitment to reduce Brazil’s currently projected GHG emissions for 2020 
by a percentage between 36.1% and 38.9%.  Such targets have not been established for the sanitation sector yet.  In this sense we are currently developing a Corporate 
Greenhouse Gas Management Program, aimed at reducing the amount of greenhouse gases released into the atmosphere, including the creation of an inventory to record 
releases of greenhouse gases. 

In  2015,  we  concluded  the  corporate  inventory  of  greenhouse  gases  for  2014,  thus  totaling  eight  inventories  since  2007.   We  noted  that  the  trend  observed  in  the 
previous  inventories  persists,  specifically  that  activities  regarding  sewage  collection  and  treatment  remain  our  largest  sources  of  greenhouse  gas  release,  representing 
approximately 84% of total greenhouse gas release.  Electric energy represents approximately 14% and other activities represent approximately 2%. 

We  also  participate  in  initiatives  that  produce  clean  energy,  such  as  the  installation  of  a  small  hydroelectric  power  plant,  which  contribute  to  the  reduction  of  the 
amount  of  greenhouse  gases  released  into  the  atmosphere.   We  have  projects  in  the  research  and  development  stages  that  entail  using  biogas  generated  in  the 
sewage treatment process and recycling sewage sludge as means to reduce the gases released in the treatment processes.  We also have initiatives to reduce our emission of 
greenhouse gases, such as the coverage of stabilization ponds and the implementation of composting systems.  

At this point, it is still not possible to predict if climate change policies will provide opportunities or generate new costs for us.  Reducing our emissions of carbon 
dioxide will involve costs and expenses related to implementing more stringent control mechanisms, adopting pollution prevention measures and actions to minimize the 
generation of GHGs.  We may not receive financial incentives to offset all or part of these costs.  In addition, if limitations in GHG emissions affect our supply chain and 
increase our costs, we may not be able to pass on these costs to our end consumers.  See “—Tariffs”.

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Physical Effects of Extreme Weather Events 

Since  our  financial  performance  is  closely  linked  to  climate  patterns  that  influence  the  qualitative  and  quantitative  availability  of  water,  the  further  worsening  of 
extreme weather conditions may intensify the adverse effects on our business and operations.  The persistence of the long-term effects of extreme weather conditions causes 
significant alterations in the physical environment that may create unfavorable circumstances, which could affect the costs of services and tariffs.

An increase in heavy rainfall can impact the regular operation of water sources, including abstraction of water from our dams, through potential increased soil erosion, 
silting and runoff of pollutants that can affect aquatic ecosystems.  In addition, increased flows of rainwater into sewage systems may overwhelm the capacity of sewage 
treatment plants. 

In the case of prolonged periods of drought, for example, reduced water levels in dams can greatly impact the production process.  Droughts also lower reservoir levels 
available for hydroelectric plants, which may lead to power shortages, particularly since hydroelectric power accounts for most of Brazil’s electric power supply.  Lack of 
electric energy could lead to instability in water supply and sewage collection and treatment services, which could damage our reputation.  In addition, because we are one 
of the largest consumers of electricity in the state of São Paulo, a potential increase in electricity tariffs due to a shortage of hydroelectric power could have a significant 
economic impact on us.

We are also the concessionaire for water and sewage services for all the coastal municipalities of the state of São Paulo.  A rise in the sea level could result in increased 
salinity in the river estuaries where we abstract water, which could affect water treatment in these areas.  Rising sea levels could also cause damage in our sewage collection 
network. 

Extreme climate events may also affect the extraction, production and transportation of the materials necessary for our operations, such as water treatment materials, 
and may lead to an increase in the cost of these materials.  A drastic rise in air temperature could also increase consumer demand for water, increasing the need to expand 
both water supply and sewage treatment.

In this context, our strategy calls for identifying mitigating actions, enlarging their coverage and managing possible operational risks related to climate change, as well 
as  identifying  opportunities  to  increase  our  effectiveness  and  to  implement  new  technologies.   With  regard  to  the  intensified  risk  of  reduced  water  availability,  we  are 
working to adapt to a new scenario of water scarcity due to the risks associates with the effects of climate change through initiatives such as the Corporate Programs for 
Loss Reduction, the Program for Rational Water Usage and the expansion of the planned reutilization of effluents for urban and industrial purposes, among others.  

See “Item 3.D. Risk Factors—Risks Relating to Our Business—New laws and regulations relating to climate change and changes in existing regulation, as well as the 

physical effects of extreme weather events, may result in increased liabilities and increased capital expenditures, which could have a material adverse effect on us”.

Regarding the drought that affected the Cantareira System throughout 2014 and 2015, see “Item 3.D. Risk Factors—Risks Relating to Our Business—The measures we 
took to mitigate the effects of the drought resulted in a significant decrease in the volume of water billed and revenues from services we provide, which had a material 
adverse effect on our company and that may worsen if the drought escalates in severity” and “—The Current Water Crisis”.

Public Bidding Procedures

Pursuant  to  the  Federal  Public  Bidding  Law,  the  public  bid  process  commences  with  publication  by  the  granting  authority  in  a  federal,  state  or  municipal  official 
newspaper, as the case may be,  and another leading  Brazilian newspaper.  The publication announces that the granting  authority 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:  (i) the purpose, duration and goals of the bid; (ii) the 
participation of bidders, either individually or forming a consortium; (iii) a description of the qualifications required for adequate performance of the services covered by 
the bid; (iv) the deadlines for the submission of the bids; (v) the criteria used for the selection of the winning bidder; and (vi) a list of the documents required to establish 
the bidder’s technical, financial and legal capabilities.

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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.  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 provisions of State Law No. 6,544/1989 of November 2, 1989, as amended, or 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 our business operations or in connection with our capital expenditure program, in each case subject to certain 
exceptions.

Water Usage

State law establishes the basic principles governing the use of water resources in the state of São Paulo in accordance with the State constitution.  These principles 

include:

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rational utilization of water resources, ensuring that their primary use is to supply water to the population; 

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 hydrological 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 against pollution and excessive exploitation; and 

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

Among  other  instruments  established  by  this  Policy,  the  competent  public  authority  grants  for  the  right  to  use  water  for  the  implementation  of  any  enterprise  that 
demands the use of surface or underground water resources (for water collection and release of effluents), as well as for the execution of services that alter the regime or 
quality of such water resources.  In the case of rivers under the federal government’s domain (rivers crossing more than one state), ANA 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, DAEE 
is the public authority responsible for granting such authorizations.  

In conducting our principal activities, we have the majority of grants for the rights to use water, and there is a multi-annual corporate program in place to obtain and 
maintain the rights to use water for the remaining activities.  However, all of our water-usage activities included in the corporate program have filed requests for grants for 
the right to use water with the competent authority; many of these requests have been granted and others are under analysis by DAEE and ANA.  Another phase of the 
corporate program is predicted to meet new demands.

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State Law No. 12,183/2005, which was enacted on December 29, 2005, established the basis for charging for the use of the water resources under the domain of the 
State of São Paulo.  To apply such charging, the law provides for, among other provisions, the participation of the River Basins Committees, the formulation of criteria by 
such Committees, the creation of basin agencies and the organization of a registered list of water resource users.  The basin committee’s proposals regarding the criteria to 
calculate the amounts to be charged at each basin must be approved by the State Water Resource Council, and formalized by a decree issued by the State Governor.

According to existing law, the hydrographic basins committees are authorized to charge users, such as us, for the abstraction of water from, or dumping of sewage into, 

water bodies.

Charging for the use of water is under gradual implementation by the State of São Paulo, where the largest individual contributors are located, and it is a management 
tool  of  the  Policy  on  Water  Resources  to  promote  the  rational  use  of  water  and  finance  programs  and  actions  established  by  the  basin  plans.   In  2015,  we  paid 
approximately R$43 million for the use of water resources.

Charging for the use of water from rivers of federal domain began in 2003 in the Paraíba do Sul basin, and charging for the use of water from rivers of state domain 
began in 2007 in the Paraíba do Sul, Piracicaba, Capivari and Jundiaí basins.  Subsequently, charges were implemented for the use of water from the Sorocaba, Médio Tietê 
and Baixada Santista basins.  In 2013, charges were implemented for the use of water from the Baixo Tietê basin and, in April 2014, for the use of water from the Alto 
Tietê River Basin.  It is probable that the same will occur in 2016 in the other river basins of the State of São Paulo. 

Water Quality

Administrative Rule No. 2,914/2011, issued by the Ministry of Health of the federal government, provides the standards for potable water for human consumption in 
Brazil.   This rule is  similar  to  the  U.S.  Safe  Drinking  Water Act  and  the regulations  enacted by the  U.S.  Environmental  Protection  Agency, which  establishes  rules  for 
sampling and limits related to substances that are potentially hazardous to human health.

In compliance with Brazilian law, the physical-chemical, organic and bacteriological analyses carried out for water quality control must follow several national and 
international standards, such as: Standard Methods for the Examination of Water and Wastewater from the institutions such as the American Public Health Association 
(APHA),  American  Water  Works  Association  (AWWA)  and  Water  Environment  Federation  (WEF);  United  States  Environmental  Protection  Agency  (EPA);  standards 
published by the International Standardization Organization (ISO); and methodologies proposed by the World Health Organization (WHO).

Decree No. 5,440/2005 provides that the quality of water must be disclosed to consumers.  We have been complying with this regulation by publishing the required 

information in monthly bills and annual reports delivered to all consumers that we serve.

Environmental Regulation 

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.   The  National  Environmental  Council  (Conselho  Nacional  de  Meio  Ambiente),  or  the  “CONAMA”,  is  the  federal  agency  responsible  for  the 
regulation  of  potentially  polluting  activities.   In  the  state  of  São  Paulo,  CETESB  is  the  governmental  entity  responsible  for  the  control,  supervision,  monitoring  and 
licensing of polluting activities, pursuant to State Law No. 997/1976 and State Law No. 13,542/2009.  

The  control  and  environmental  planning  instruments  are  defined  by  several  legal  instruments,  such  as  State  Law  No. 997/1976,  which  regulates  environmental 
licensing  of  sanitation  projects  that  cause  significant  alterations  to  the  environment;  CONAMA 
pollution  control;  CONAMA  Resolution  No. 05/1988,  which  requires 
Resolution No. 237/1997, which regulates (i) environmental licenses, (ii) federal, state and local jurisdiction over environmental issues, (iii) the list of activities subject to 
licensing, and (iv) environmental impact studies and reports; State Decree No. 47,400/2002 and related articles from State Law No. 9,509/1997 regarding environmental 
licensing; State Decree No. 8,468/1976, CONAMA Resolution No. 357/2005, and CONAMA Resolution No. 397/2008, which establish standards of quality for receiving 
bodies of water; State Decree No. 8,468/1976 and CONAMA Resolution No. 430/2011 which establish the standards for discharge of effluents; and Portaria Departamento 
de Águas e Energia Elétrica No. 717/1996, which regulates the concession of grants for the right to use water and rights to interfere in water resources.  

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The licensing process, usually, is composed of three stages, including the following licenses:   

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preliminary 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 compliance with approved plans, programs and projects, 
including environmental control measures and other necessary technical requirements; and

operation license – authorizing the operation of a unit or activity, subject to compliance with the technical requirements contained in the installation license.

There  are  cases,  according  to  the  type  of  business  to  be  licensed,  in  which  the  preliminary  license  may  be  issued  with  the  installation  license.   The  environmental 

licenses are renewable.

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. 

We have been implementing a multi-annual corporate program to obtain and maintain the environmental licenses for our water treatment stations and sewage treatment 
stations in order to comply with environmental regulations.  The corporate program to obtain and maintain the licenses for our sewage pumping stations is currently being 
reviewed by CETESB.

Sewage Requirements 

State law sets forth regulations regarding pollution control and environmental preservation in the state of São Paulo.  According to this law, in areas in which there is a 
public  sewage  system,  all  effluents  of  a  “polluting  source”  must  be  discharged  to  such  system,  as  is  the  case  for  industrial  enterprises.   It  is  the  responsibility  of  the 
polluting source to connect itself to the public sewage system.  All effluents to be discharged are required to meet the standards and conditions established by the applicable 
environmental law, which allows such effluents to be treated by our treatment facilities and discharged in an environmentally safe manner.  Effluents that do not comply 
with such criteria 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.   Effluents  from  our 
treatment  facilities  must  comply  with  effluent  limitation  guidelines  and  meet  the  water  quality  standards  of  the  receiving  water  bodies  established  by  federal  and  state 
legislation.  See “—Sewage Operations—Sewage System”. 

The CETESB is authorized under State law to monitor discharges of effluents into the water bodies, among other things.  The CETESB also issues the environmental 

licenses to the polluting sources, including sewage treatment stations.  For more information, see “Item 4.B. Business Overview—Environmental Matters”.

State and federal water resource legislation establishes the charging of fees for the discharge of treated effluents into water bodies.  This charge is already in force for 

some river basins, and it is in different implementation stages for the remaining basins.  See “—Environmental Matters—Water Usage”.

Governmental Restrictions on Incurrence of Debt

On  June 30,  1998,  the  CMN  issued  Resolution  No. 2,515/1998  amending  certain  conditions  that  must  be  observed  with  respect  to  external  credit  operations  (i.e., 
foreign currency borrowings) of states, the Federal District of Brasília, 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:

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the proceeds of external credit operations must be exclusively used to refinance outstanding financial obligations of the borrower, 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.

The CMN resolution further provides that the requirements described above do not apply to financing transactions involving multilateral or official organizations such 
as the International Bank for Reconstruction and Development, or “IBRD”, the IADB or the JICA.  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  borrower.   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  foreign  currency-denominated  transactions  are  also  subject  to  the  approval  of  the  National  Secretariat  of  Treasury  (Secretaria  do  Tesouro  Nacional)  and  the 
Central Bank.  After reviewing the financial terms and conditions of the transaction, the National Secretariat of Treasury and the Central Bank 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.

Lending Limits of Brazilian Financial Institutions

The  CMN  Resolution  No. 2,827/2001  dated  as  of  March 30,  2001,  as  amended,  limits  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.

Scope of Business

State Law No. 12,292/2006, dated as of March 2, 2006, and amended State Law No. 119/1973, dated as of June 29, 1973, which created our Company, authorizes us to 
provide  water  and  sewage  services  outside  São  Paulo  (in  other  states  of  Brazil  and  other  countries).   This  law  also  authorizes  us  to  own  interests  in  other  public  or 
private-public companies and Brazilian or international consortia.  In addition, this law permits us to incorporate subsidiaries and enter into a partnership with or acquire 
interests in a private company with a corporate purpose related to the sanitation business.

C. Organizational Structure

Not applicable.

D. Property, Plant, Equipment and Intangible Assets

Our principal property, plant and equipment comprise administrative facilities which are stated at historical costs less depreciation.  The reservoirs, water treatment 
facilities,  water  distribution  networks  consisting  of  water  pipes,  water  transmission  lines,  water  connections  and  water  meters,  sewage  treatment  facilities,  and  sewage 
collection networks consisting of sewer lines and sewage connections are recorded as intangible assets (concession assets).  As of December 31, 2015, we operated through 
71,705 kilometers of water pipes and water transmission lines and 48,774 kilometers of sewer lines.  As of that same date, we operated 235 water treatment facilities and 
539 sewage treatment facilities (including 9 ocean outfalls), as well as 16 water quality control laboratories.  

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As of December 31, 2015, the total net book value of our property, plant and equipment and intangible assets (including concession assets) was R$28,838.7 million.

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

ITEM 4A.     UNRESOLVED STAFF COMMENTS

Not applicable.

ITEM 5.

OPERATING AND FINANCIAL REVIEW AND PROSPECTS

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  elsewhere  in  this  annual  report.   The  financial  statements  included  elsewhere  in  this  annual  report  have  been  prepared  in  accordance  with  IFRS  as 
issued  by  the  IASB.   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”.

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.

A. Operating and Financial Review and Prospects

Overview

As of December 31, 2015, we operated water and sewage systems in the state of São Paulo, including in the city of São Paulo, Brazil’s largest city.  Our operations 
extended into a total of 364 municipalities, or 56% of all municipalities in the state.  We also provided water services on a wholesale basis to five municipalities located in 
the São Paulo metropolitan region in which we did not operate water distribution systems.  

The São Paulo metropolitan region, which includes the city of São Paulo, is our most important service region.  With a total population of approximately 21.4  million, 
the  São  Paulo  metropolitan  region  accounted  for  67.3%,  70.0%  and  73.2%  of  our  gross  operating  revenue  in  2015,  2014  and  2013  (excluding  revenues  relating  to  the 
construction of concession infrastructure), respectively.  As of December 31, 2015, 60.6% of the concession intangible assets reflected on our balance sheet were 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 operating 
revenue, we have concentrated 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,  control  costs  and  improve  productivity,  general  economic 

conditions in Brazil and abroad, and extreme weather events.

Effects of Tariff Increases

Our  results  of  operations  and  financial  condition  are  highly  dependent  on  tariff  increases  for  our  water  and  sewage  services.   Since  the  enactment  of  the  Basic 
Sanitation Law in 2007, as a general rule, regulatory agencies are responsible for setting, adjusting and reviewing tariffs, taking into consideration, among other factors, the 
following:





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

anti-inflation measures enacted by the federal government from time to time; and

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

when  necessary,  the  readjustment  to  maintain  the  original  balance  between  each  party’s  obligation  and  economic  gain  (equilíbrio  econômico-financeiro) 
under the agreement.

Readjustment  of  our  tariffs  continues  to  be  set  annually  and  depend  on  the  parameters  established  by  the  Basic  Sanitation  Law and  ARSESP.   The  guidelines  also 
establish procedural steps and the terms for annual adjustments.  The annual adjustments must be announced 30 days prior to the effective date of the new tariffs.  See “4.B. 
Business Overview – Tariffs”.  

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

Increase in average tariff(1)
Inflation – IPC – FIPE 
Inflation – IPCA 
Inflation – IGP-M 

2015

Year ended December 31,
2014

2013

15.24%
11.07% 
10.67% 
10.54%

6.50%
5.20%
6.41%
3.69%

5.84%
3.88%
5.91%
5.51%

(1) See “Item 4.B. Business Overview—Tariffs” for addition information on tariff increases.

Sources:  Central Bank, Fundação Getulio Vargas, or FGV, Instituto Brasileiro de Geografia e Estatística, or IBGE, and Fundação Instituto de Pesquisas Econômicas.

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 
the economic activity and the inflation rate.  For example, the general performance of the Brazilian economy may affect our cost of capital and inflation may affect our 
costs and margins.  The Brazilian economic environment has been characterized by significant variations in economic growth rates.  However, as our product is viewed as 
essential, in normal conditions our sales revenue demonstrates high stability.  In 2015, our business was significantly affected by the most severe drought recorded in our 
service area in the last 85 years. 

General Economic Conditions

In  2013,  Brazilian  GDP  increased  2.3%  in  comparison  with  2012.   Also  in  2013,  Brazil  had  US$375  billion  in  currency  reserves  and  its  trade  surplus  was 
US$2.6 billion, the worst in 13 years, and its trade balance fell 86% in comparison with 2012.  The average unemployment rate in Brazil’s principal metropolitan regions 
was 5.4%, the lowest rate in history at that time, according to the IBGE. 

In  2014,  Brazilian  GDP  increased  0.1%  in  comparison  with  2013.   Also  in  2014,  Brazil  had  US$374.0 billion  in  currency  reserves  and  its  trade  deficit  was 
US$3.9 billion, the first negative annual balance since 2000 and the worst since 1998.  The average unemployment rate in Brazil’s principal metropolitan regions was 4.8%, 
the lowest rate in history according to the IBGE.

In 2015, Brazilian GDP decreased 3.8% in comparison with 2014, the worst result in 25 years.  Also in 2015, Brazil had US$368.4 billion in currency reserves and its 
trade  surplus  was  US$19.7  billion,  which  is  the  largest  since  2011.   The  average  unemployment  rate  in  Brazil’s  principal  metropolitan  regions  was  6.9%,  which  is  the 
highest rate since 2009 according to the IBGE.

Interest Rates

As a political monetary instrument of the federal government, the SELIC rate influences the behavior of other interest rates in the country, including the rates related 
indebtedness denominated in local currency.   In 2011, until the month of August, the Central Bank continued increasing the SELIC rate, reaching 12.50% in July.  In the 
month of August, the Central Bank started decreasing the SELIC, closing 2011 at 11.00%.  This downward trend was maintained in 2012, with the SELIC rate closing the 
year of 2012 at 7.25%.  In 2013, the SELIC rate was kept at 7.25% until April, after which the Central Bank started to gradually raise it.  The SELIC rate was 9.9% at 
December 31, 2013 and increased to 11.65% at December 31, 2014. The SELIC rate increased to 14.15% at December 31, 2015. 

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We have not contracted any derivative financial instruments or any hedging instruments to mitigate interest rate fluctuations.  

Inflation

Inflation affects our financial performance by increasing our costs of services rendered and operating expenses.  Part of our real-denominated debt is directly indexed 
to take into account the effects of inflation.  Additionally, we are exposed to the mismatch between the inflation adjustment indices of our loans and financing and those of 
our receivables.  Water supply and sewage service tariffs do not necessarily follow the increases in inflation adjustment and interest rates affecting our debt.  We cannot 
assure you that our tariffs will be increased, in future periods, to offset, in full or in part, the effects of inflation.  

Inflation adjustments derive from collections from or payment to third parties, as contractually required by law or court decision, and are recognized on an accrual 
basis.  Inflation adjustments included in these agreements and decisions are not considered embedded derivatives, since they are deemed as inflation adjustments for us.  
See Notes 3.20, 5.1 and 27 of the financial statements for the impacts of inflation adjustments on our financial performance and debt.

Currency Exchange Rates

We had total foreign currency-denominated indebtedness of R$6,617.8 million as of December 31, 2015, of which R$901.2 million relates to the current portion of our 
long-term  foreign  currency-denominated  obligations.   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  is  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.  In  2013,  the  14.64% 
depreciation of the real against the U.S. dollar offset by the 5.91% appreciation of the real against the yen led to a foreign exchange loss of R$267.8 million.  In 2014, the 
13.39% depreciation of the real against the U.S. dollar and the 0.45% appreciation of the real against the yen led to a foreign exchange loss of R$345.1 million.  In 2015, 
the  47.01%  depreciation  of  the  real  against  the  dollar  and  the  45.95%  depreciation  of  the  real  against  the  yen  led  to  a  foreign  exchange  loss  of  R$1,992.0  million.  
However, since most of our debt denominated in foreign currencies is long-term debt with a long amortization schedule, a devaluation of the real would principally impact 
cash flows regarding the current portion of our long-term debt. 

We do not have any exposure to derivatives tied to foreign currencies.

The following table shows the fluctuation of the real against the U.S. dollar, the period-end exchange rates and the average exchange rates as of or for the periods 

indicated:

Depreciation (appreciation) of the real versus U.S. dollar(2)
Period-end exchange rate – US$1.00 
Average exchange rate – US$1.00(1)

(1) Represents the average for period indicated.
(2) Represents the comparison with period-end exchange rate.

Source:  Central Bank.

Year ended December 31,

2015

2014

2013

(in reais, except percentages)

47.0%
3.9048
3.3387

13.4%
2.6562
2.3547

14.6%
2.3426
2.1605

The following table shows the fluctuation of the real against the yen, the period-end exchange rates and the average exchange rates as of or for the periods indicated:

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Depreciation (appreciation) of the real versus yen(2)
Period-end exchange rate – ¥1.00
Average exchange rate – ¥1.0(1)

(1) Represents the average for period indicated.
(2) Represents the comparison with period-end exchange rate.

Source:  Central Bank.

Year ended December 31,

2015

2014

2013

(in reais, except percentages)

46.0%
0.0324
0.0276

(0.45)%
0.0222
0.0222

(5.9)%
0.0223
0.0221

During the years ended  December 31, 2015, 2014 and 2013 we had no forward exchange transactions.

For further information on exchange rates, see “Item 3.D. Risk Factors—Risks Relating to Brazil—The devaluation of the real to foreign currencies may adversely 
affect  us  and  the  market  price  of  our common  shares  or  ADSs”  and “Item  5.B.  Liquidity  and  Capital  Resources—Capital  Sources—Indebtedness  Financing—Financial 
Covenants”.

Effects of Extreme Weather Events

The southeastern region  of  Brazil, particularly the  southern  region  of  the state  of  Minas  Gerais, the  PCJ River  Basin (from which  we  extract the  water used in  the 
Cantareira System), and the northern area of the São Paulo metropolitan region, experienced below average rainfall since 2012.  In the October 2013 – March 2014 rainy 
season, rain levels and water inflow into the reservoirs reached the lowest levels in 84 years of recorded rainfall in the region, a scenario that continued in the October 2014 
– March 2015 rainy season.  During the October 2015 – March 2016 rainy season, the level of rainfall in the region returned to the normal levels expected for the period.   
Improved  rainfall  in  the  rainy  season  that  began  in  October  2015,  the  collaborative  efforts  between  us  and  the  population  we  serve  and  emergency  construction  works 
conducted by us throughout 2014 and 2015 to combat the water crisis, resulted in a partial restoration of the water levels of the Cantareira system..

As of December 31, 2015, the reservoirs in the São Paulo metropolitan region, where our largest market is located, contained 703 billion liters of bulk water storage for 
treatment, compared to 301 billion liters available for treatment as of December 31, 2014.  Under normal circumstances, we withdraw 6.2 billion liters per day (equivalent 
to the total water production of 71.4 m³/s in February 2014 for the São Paulo metropolitan region) from the reservoirs.  This volume decreased to 4.7 billion during the 
drought (equivalent to the total water production of 54.8 m³/s in December 2015 for the São Paulo metropolitan region).  The extent and the consequences of the drought 
have provoked a continuous reduction in the volume of water billed.  Throughout 2015, the water volume billed decreased 8.0% compared to 2014.

Even with the return of normal rainfall levels throughout the October 2015 – March 2016 rainy season, the need to recover the volume of water stored in the reservoirs 
of  the  Cantareira  system  will  persist  throughout  the  next  rainy  season.   The  Cantareira  system’s  maximum  storage  capacity,  including  the  technical  reserve,  is  1,269.5 
million  m³.  Excluding  the  technical  reserve,  which  is  287.5  million m³,  the  Cantareira's  maximum  storage  capacity  is  982.0  million  m³. The  volume  of  water  in  the 
Cantareira system recovered throughout the October 2015 – March 2016 rainy season and was 641.9 million m³ as of March 2016, which represents 50.6% of its maximum 
storage capacity including the technical reserve .  In December 2015, 5.3 million inhabitants were serviced by this system, compared to 8.9 million in February 2014.

In order to balance supply and demand despite  restricted water availability, we adopted from February 2014 until January 2016 a series of measures, including:  (i) use 
treated water from other production systems to serve consumers originally supplied by the Cantareira system; (ii) offer discounts (bonuses) to consumers that would use 
below  average amounts  of  water,  compared to  average  consumption;  (iii) reduce  pressure  in  the  water distribution  lines  in  order  to  decrease losses due  to  leakage;  (iv) 
adjusting the volume of water sold to municipalities that operate their own distribution network, due to reduced water availability; and (v) use pumps in order to extract 
water located below the intakes of the Cantareira system, from the so-called “technical reserve”, an unprecedented measure.  As a result of the return of normal rainfall 
levels in the rainy season that began in October 2015, as of February 2016 we modified the rules for the offer of discounts (bonuses) and as of January 2016 it was no 
longer necessary to pump water out of the technical reserve of the Cantareira system, as water levels returned to a volume at which they could be naturally extracted.  On 
March 24, 2016, as a result of the increased level of rainfall and increased predictability of the level of water in our reservoirs, we requested to ARSESP the cancellations of 
our Water Consumption Reduction Incentive Program and of the Contingency Tariff.  ARSESP approved our requests on March 31, 2016 and the aforementioned policy 
changes shall be applied to water meter readings recorded as of May 1, 2016.  In addition, as of December 2015, the time period during which water is pumped out at 
reduced  pressure  in  the  water  distribution  lines  is  returning  to  the  normal  nighttime  period,  as  it  was  prior  to  the  water  crisis.  See  “Item 4.B.  Business  Overview—The 
Current Water Crisis”. 

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Critical Accounting Estimates and Judgments

We make estimates and judgments concerning the future.  The resulting accounting estimates will, by definition, seldom equal the related actual results.  The estimates 
and judgments that have a significant risk of causing material adjustment to the carrying amount of our assets and liabilities within the next financial year are mentioned 
below.

Allowance for Doubtful Accounts

We  record  an  allowance  for  doubtful  accounts  in  an  amount  that  our  management  considers  sufficient  to  cover  probable  losses,  based  on  an  analysis  of  customer 
accounts receivable, in accordance with the accounting policy stated in Note 3.4 to our financial statements as of December 31, 2015 and 2014 and for the years ended 
December 31,  2015,  2014  and  2013.   Provisions  for  the  allowance  for  doubtful  accounts  are  included  in  selling  expenses,  net  of  recoveries.   The  net  charge  to  this 
allowance was R$2.4 million, R$139.6 million and R$103.9 million in 2015, 2014 and 2013, respectively.  Wholesale sales losses, amounting to R$273.0 million, R$219.7 
million and R$218.7 million in 2015, 2014 and 2013, respectively, were also recorded as revenue reduction.

The methodology for determining the allowance for doubtful accounts 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 
used are reasonable, actual results could differ from those estimates.

Intangible Assets Arising from Concession and Program Contracts

As of December 31, 2015, we had intangible assets of R$28,513.6 million.

We recognize intangible assets arising from concession contracts under IFRIC 12.  We estimate the fair value of construction and other work on the infrastructure to 
recognize  the  cost  of  the  intangible  asset,  which  is  recognized  when  the  infrastructure  is  built  and  provided  that  it  will  generate  future  economic  benefits.   The  great 
majority of our contracts for service concession arrangements entered with each grantor is under service concession agreements in which we have the right to receive, at the 
end of the contract, a payment equivalent to the unamortized asset balance of the concession intangible asset, which in this case, is amortized over the useful life of the 
underlying physical assets; thus at the end of the contract, the remaining value of the intangible would be equal to the residual value of the related physical asset. 

The fair value of construction and other work on the infrastructure is recognized as revenue, at its fair value, when the infrastructure is built, provided that this work is 
expected  to  generate  future  economic  benefits.   The  accounting  policy  for  the  recognition  of  construction  revenue  is  described  in  Note  3.3  “Operating  Income”  to  our 
financial statements as of December 31, 2015 and 2014 and for the years ended December 31, 2015, 2014 and 2013.

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Intangible assets related to concession agreements and program contracts, when there is no right to receive the residual value of the assets at the end of the contract, are 

amortized on a straight-line basis over the period of the contract or the useful life of the underlying asset, whichever is shorter.

Investments made and not recovered through rendering of services, within the terms of our agreement, must be indemnified by the concession grantor; (1) with cash or 

cash equivalents or also, in general, (2) with a contract extension.  These investments are amortized over the useful life of the asset.

Law  No.11,445/2007  prescribes  that,  whenever  possible,  basic  sanitation  public  utilities  shall  have  their  economic  and  financial  sustainability  ensured  through  the 
consideration received from service collection, preferably as tariffs and other public charges, which may be established for each service or both.  Therefore, investments 
made and not recovered through these services, within the original term of the contract, are recorded as intangible assets and amortized over the useful life of the asset, 
taking into consideration a solid track record of concession renewal and, therefore, the continuity of services.

The recognition of fair  value for  the intangible  assets  arising on concession  contracts  is  subject  to assumptions and  estimates,  and  the use  of  different assumptions 
could affect the balances recorded.  The amortization of 
intangible assets and estimated useful lives of the underlying assets also requires significant assumptions and 
estimates, which different assumptions and estimates, and changes in future circumstances, could affect amortization of intangible assets and remaining useful lives of the 
underlying assets and can have a significant impact on the results of operations.

Provision

As of December 31, 2015, we were party to judicial and administrative proceedings, relating to civil, environmental and tax matters, amounting to R$1,082.2 million 
(deducting the amount of R$330.7 million related to escrow deposits) with respect to which we considered the risk of loss as probable.  As of that date, proceedings with 
respect  to  which  we  considered  the  risk  of  loss  as  possible  amounted  to  R$5,410.5  million,  and  those  with  respect  to  which  we  considered  the  risk  of  loss  as  remote 
amounted to R$41,444.1 million.

We are a party to a number of legal proceedings involving significant monetary claims.  These legal proceedings include, among other types, disputes with customers 
and suppliers and tax, labor, civil, environmental and other proceedings.  For a more detailed discussion of these legal proceedings, see Note 19 to our financial statements 
as of December 31, 2015 and 2014 and for the years ended December 31, 2015, 2014 and 2013.  We accrue provisions for legal proceedings in which it is probable that an 
outflow will be necessary to settle the liability and the amount of such loss can be reasonably estimated.  Therefore, 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 provisions for risks, actual 
losses realized in future periods could differ significantly from our estimates and could exceed the amounts which we have provisioned.

Pension Benefits

The present value of the pension obligations depends on a number of factors that are determined on an actuarial basis using a number of assumptions.  The assumptions 
used in determining the net cost (income) for pensions include a discount rate and a mortality table.  Any changes in these assumptions will impact the carrying amount of 
pension obligations.

We determine the appropriate discount rates at the end of each year, which is the interest rate that should be used to determine the present value of estimated future 
cash outflows expected to be required to settle the pension obligations. The discount rate was increased from 6.09% in 2014 to 7.25% in 2015 under Plan G0 and from 
6.11% in 2014 to 7.23% in 2015 under Plan G1 in order to follow the increase in the rates applicable to the Brazilian Government NTN – B, long term notes, which term is 
similar to the duration of the pension benefits, as described in Notes 3.19 (a) and 20 (b) to our financial statements as of December 31, 2015 and 2014 and for the years 
ended December 31, 2015, 2014 and 2013.

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Other key assumptions for pension obligations are based in part on current market conditions.  Additional information on the pension plans under Plan G0 and G1 is 

disclosed in Note 20 to our financial statements as of December 31, 2015 and 2014 and for the years ended December 31, 2015, 2014 and 2013.

Deferred income tax and social contribution

We recognize and settle taxes on income based on the results of operations verified according to the Brazilian Corporate Law, taking into consideration the provisions 
of the tax laws.  Pursuant to IAS 12, we recognize deferred tax assets and liabilities based on the differences between the accounting balances and the tax bases of assets 
and liabilities.  

We regularly review the recoverability of deferred tax assets and recognize a provision for impairment if it is probable that these assets will not be realized, based on 
historic taxable income, the projection of future taxable income and the estimated period to reverse temporary differences.  These calculations require the use of estimates 
and assumptions.  The use of different estimates and assumptions could result in provision for impairment of all or a significant amount of deferred tax assets.

As of  December 31, 2015  and  2014, we have  recognized  R$128.2 million  and  R$209.5  million, respectively, as  deferred income tax  assets,  net  of  the  deferred  tax 

liabilities, as disclosed in Note 18 to our financial statements as of December 31, 2015 and 2014 and for the years ended December 31, 2015, 2014 and 2013.

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 

State-owned companies which merged to form our Company.  These amounts must be reimbursed to us by the State, as primary obligor.

In November 2008, we entered into the third amendment to the agreement with the State relating to payments of pension benefits made by us on its behalf.  The State 
acknowledged that it owed us an outstanding balance of R$915.3 million as of September 30, 2008, relating to payments of pension benefits made by us on its behalf. In 
2008, we provisionally accepted, but it is not recognized in our books, the reservoirs in the Alto Tietê System as partial payment in the amount of R$696.3 million, subject 
to the transfer of the property rights of these reservoirs to us which was renegotiated on March 18, 2015, as described below. Since November 2008, the State has been 
paying the remaining balance in the amount of R$219.0 million in 114 successive monthly installments.  See Note 10 to our financial statements as of December 31, 2015 
and 2014 and for the years ended December 31, 2015, 2014 and 2013 and “Item 7.  Major Shareholders and Related Party Transactions”.

On March 18, 2015, we, the State and DAEE, with the intervention of the Department of Sanitation and Water Resources, executed a term of agreement, in the amount 
of R$1,012.3 million, of which R$696.3 million refers to the principal amount and R$316.0 million refers to the monetary adjustment of the principal through February 
2015. For detailed information on this agreement, see “Item 7.B. Related Party Transactions—Agreements with the State of São Paulo” and Note 10 (a) (vii) of our 2015 
financial statements.

As of December 31, 2015 and 2014, the amounts not recorded related to pension benefits paid by us on behalf of the State totaled R$855.1 million and R$1,479.7 
million  respectively. As  a  result,  we  also  recognized  the  obligation  related  to  pension  benefits,  maintained  with  the  beneficiaries  and  pensioners  of  Plan  G0.   As  of 
December 31, 2015 and 2014, the pension benefit obligations of Plan G0 totaled R$2,167.0 million and R$2,053.5 million, respectively.  For detailed information on the 
pension benefit obligations refer to Note 20 of our Financial Statements.

Accounts Receivable from the State for Water and Sewage Services Rendered

Certain of these accounts receivable have been overdue for a long period.  We have entered into agreements with the State with respect to these accounts receivable.  
For further information on these agreements, see Note 10 to our financial statements as of December 31, 2015 and 2014 and for the years ended December 31, 2015, 2014 
and 2013 and “Item 7. Major Shareholders and Related Party Transactions”.

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Use of Certain Assets 

Empresa Metropolitana de Águas e Energia S.A. – EMAE plans to receive credit and to obtain financial compensation for the use of water from the Guarapiranga and 

Billings reservoirs, which we use in our operations, as well as reimbursement of damages related to non-payment in due course. 

We understand that no amounts are due for the use of these reservoirs given the grants already made.  Should these reservoirs not be available for our use, there could 

be a need to collect water in more distant locations and a risk of not being able to properly render services in the region and an increase in water supply cost. 

Several lawsuits were filed by EMAE, among them a lawsuit to enforce an arbitration clause related to the Guarapiranga reservoir, a proceeding which has already 
begun and another lawsuit, pleading for financial compensation due to our water abstraction from the Billings reservoir for public supply.  These two lawsuits allege that 
this conduct has caused permanent and increasing loss in the capacity of the Henry Borden hydroelectric power plant to generate electricity as well as financial losses. 

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

determined. 

On April 10, 2014, we issued an Announcement to the Market to communicate that we are negotiating with EMAE regarding a potential future agreement.  However, 

no adjustment has been confirmed, and no agreement has been executed by either party as of yet.

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 operating revenues:

Year ended December 31,

Net operating revenues 

Cost of sales and services 
Gross profit 
Selling expenses 
Administrative expenses 
Other operating income (expenses), net and equity results
Operating profit 
Financial income (expenses), net 
Profit before income tax and social contribution 
Income tax and social contribution 

Net income for the year 

2015

11,711.6
(8,260.8)

3,450.8
(598.1)
45.0
146.4

3,044.1
(2,456.5)
587.6
(51.3)

536.3

100.0%
(70.5)%
29.5%
(5.1)%
0.4%
1.3%
26.0%
(21.0)%
5.0%

(0.4)%
4.6%

2014
(in millions of reais, except percentages)
100.0%

11,213.2
(7,635.6)
3,577.6
(736.6)
(924.4)
(5.9)
1,910.7
(635.9)
1,274.8
(371.9)

903.0

(68.1)%
31.9%
(6.6)%
(8.2)%
(0.1)%
17.0%
(5.7)%
11.4%
(3.3)%

8.1%

2013

11,315.6
(6,816.3)
4,499.3
(637.1)
(729.1)
5.7
3,138.8
(483.2)
2,655.6
(732.0)

1,923.6

100.0%

(60.2)%
39.8%
(5.6)%
(6.4)%
(0.1)%
27.7%
(4.3)%
23.5%
(6.5)%

17.0%

Year Ended December 31, 2015 Compared to Year Ended December 31, 2014

Net operating revenues

Net operating revenues increased by R$498.4 million, or 4.4%, to R$11,711.6 million in 2015 from R$11,213.2 million in 2014.

Net  operating  revenues  relating  to  water  services  increased  by  R$161.8  million,  or  3.5%,  to  R$4,723.0  million  in  2015  from  R$4,561.2 million  in  2014  and  net 
operating revenues relating to sewage services decreased by R$82.1 million, or 2.2%, to R$3,651.9 million in 2015 from R$3,734.0 million in 2014.  These variations were 
principally due to:

87







An increase of 6.5% in the repositioning tariff index since December 2014;

An increase of 15.2% in tariffs (7.8% ordinary tariff adjustment and 6.9% extraordinary tariff revision) since June 2015; and

Application of the contingency tariff, which contributed R$499.7 million to our revenues in 2015.

 These increases were partially offset by the discounts (bonuses) granted within the terms of the Water Consumption Reduction Incentive Program, which amounted to 

R$ 926.1 million in 2015, compared to the R$ 376.4 million granted in 2014 and a decrease of 6.8% in our total billed volume (8.0% in water and 5.2% in sewage).

Gross  revenue  from  construction  increased  by  R$418.7  million,  or  14.3%,  to  R$3,336.7  million  in  2015  from  R$2,918.0  million  in  2014.   See  Note  3.3(b) to  our 
financial statements as of December 31, 2015 and 2014 and for the years ended December 31, 2015, 2014 and 2013 for a description of the accounting policies applicable 
to our construction services business. 

Cost of Sales and Services

The cost of sales and services increased by R$625.2 million, or 8.2%, to R$8,260.8 million in 2015 from R$7,635.6 million in 2014.  As a percentage of net operating 

revenues, cost of sales and services increased to 70.5% in 2015 from 68.1% in 2014.

The increase in costs of sales and services was principally due to the following factors:





an increase of R$408.3 million in construction costs due to higher investments in 2015; and

an increase of R$217.7 million in the cost of the electricity, mainly due to an average increase of 63.1% in the regulated market tariffs and a corresponding 
7.9% decrease in electricity consumption, and an average increase of 161.0% in the Tariff for the Use of Distribution System (TUSD) and a corresponding 
13.3%  decrease  in  consumption.  The  increases  were  partially  offset  by  a  4.1%  decrease  in  free  market  tariffs  and  a  1.0%  decrease  in  the  free  market 
consumption.

The increase in costs of sales and services was partially offset by:



a decrease of R$19.2 million in expenses related to supplies, mainly due to decreased use of materials in preventive and corrective maintenance in water and 
sewage systems, expansion of computerized systems and conservation of properties and installations.

Gross Profit

As a result of the factors discussed above, gross profit for the year ended December 31, 2015 decreased by R$126.8 million, or 3.5%, to R$3,450.8 million in 2015 

from R$3,577.6 million in 2014.  As a percentage of net operating revenues, gross profit decreased to 29.5% in 2015 from 31.9% in 2014.

Selling Expenses 

Selling  expenses  decreased  by  R$138.5  million,  or  18.8%,  to  R$598.1  in  2015  from  R$736.6  million  in  2014.   As  a  percentage  of  net  operating  revenues,  selling 
expenses  decreased  to  5.1%  in  2015  from  6.6%  in  2014.   The  decrease  in  selling  expenses  was  primarily  due  to  a  decrease  of  R$137.2  million  in  credit  write-offs, 
especially due to the reversal of the provision for losses with the municipality of Guarulhos, as a result of the receipt of court-ordered debt payments in cash.  For more 
information on the reversal of the provision for losses with the municipality of Guarulhos, see “Item 3.D. Risk Factors—Risks Relating to our Business—We may face 
difficulties in collecting overdue amounts owed to us by municipalities to which we provide water on a wholesale basis and municipal government entities”.

Administrative Expenses

88

Administrative  expenses  decreased  by  R$969.4  million,  or  104.9%,  to  a  revenue  of  R$45.0  million  in  2015  from  an  expense  of  R$924.4  million  in  2014.   As  a 

percentage of net operating revenues, administrative expenses decreased to 0.4% in 2015 from 8.2% in 2014.

The decrease in administrative expenses was principally due to:





a decrease of R$ 185.5 million in the provisions for lawsuits, mainly due to court decisions in our favor; and

a credit in the amount of R$ 696.3 million as a result of an agreement with the government of the state of São Paulo to receive an undisputed amount owed 
to us related to the payment of the benefits to former employees.  See Note 10 (a) (vii) to our financial statements as of December 31, 2015 and 2014 and for 
the years ended December 31, 2015, 2014 and 2013

Other Operating Income (Expenses), Net 

Other operating income was of R$146.4 million in 2015 compared with R$5.9 million operating expenses in 2014, an increase of 2,563.4%.  

Other  operating  income  is  comprised  of  income  from  the  sale  of  property,  plant  and  equipment,  sale  of  contracts  awarded  in  public  bids,  rights  to  sell  electricity, 
indemnities and  reimbursements of  expenses,  collection of fines and collateral, property leases, sales  of reused water, consulting  services related to PURA projects and 
provision of services.

Other operating income increased in 2015 mainly due to the sale of properties, in the amount of R$48.4 million, and higher amounts received from the Hydrographic 

Basin Depollution Program, in the amount of R$41.0 million.

Other  operating  expenses  consist  mainly  of  the  write-offs  of  concessions  due  to  obsolescence,  discontinued  construction  works,  unproductive  wells,  economically 
unfeasible  projects,  losses  on  property,  plant  and  equipment  and  exceeding  costs  of  electricity  sold.   Other  operating  expenses  decreased  in  2015  mainly  due  to  higher 
provisions for the write-off of construction works, projects and obsolete goods in 2014 totaling R$58.8 million.

Financial income (expenses), Net

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

Financial expenses, net increased by R$1,820.6 million, or 286.3%, to a R$2,456.5 million expense in 2015 from a R$635.9 million expense in 2014.  As a percentage 

of net operating revenues, financial expenses, net increased to 21.0% in 2015 from 5.7% in 2014.

The  increase  in  financial  expenses,  net  was  principally  due  to  the  negative  variation  of  R$1,647.0  million  in  expenses  with  exchange  rate  variation  on  loans  and 
financing, due to the appreciation of the U.S. dollar and the Japanese Yen against the Brazilian Real in 2015 (47.0% and 45.9%, respectively), when compared to 2014 
(13.4% and -0.5%, respectively).  

Profit before income tax and social contribution

As a result of the factors discussed above, profit before income tax and social contribution decreased by R$687.2 million, or 53.9%, to R$587.6 million in 2015 from 
R$1,274.8 million in 2014. As a percentage of net operating revenues, our profit before income tax and social contribution decreased to 5.0% in 2015 from 11.4% in 2014. 
See reconciliation of the effective tax rate in Note 18 (d) to our financial statements as of December 31, 2015 and 2014 and for the years ended December 31, 2015, 2014 
and 2013. 

Income Tax and Social Contribution

89

Income tax and social contribution decreased by R$320.6 million, or 86.2%, to R$51.3 million in 2015 from R$371.9 million in 2014.  This decrease was principally 

due to a lower taxable income in 2015 and a permanent tax effect related to GESP agreement in the amount of R$151,5 million.

Net Income for the year

As a result of the factors discussed above, net income decreased to R$536.3 million in 2015 from R$903.0 million in 2014.  As a percentage of net operating revenues, 

our net income decreased to 4.6% in 2015 from 8.1% in 2014.

Year Ended December 31, 2014 Compared to Year Ended December 31, 2013

Net operating revenues

Net operating revenues decreased by R$102.4 million, or 0.9%, to R$11,213.2 million in 2014 from R$11,315.6 million in 2013.

Net  operating  revenues  relating  to  water  services  decreased  by  R$344.8  million,  or  7.0%,  to  R$4,561.2 million  in  2014  from  R$4,906.0 million  in  2013  and  net 
operating revenues  relating to sewage services  decreased by R$230.9 million, or 5.8%, to R$3,734.0 million in 2014  from R$3,964.9 million in 2013.  These decreases 
were principally due to:





a decrease of R$376.4 million due to Water Consumption Reduction Incentive Program; and

an average of 2.2%  decrease in both the volume of water and the volume of sewage invoiced in 2014. 

These decreases were partially offset by the 3.1% tariff adjustment since December 2013.

Gross  revenue  from  construction  increased  by  R$473.2  million,  or  19.4%,  to  R$2,918.0  million  in  2014  from  R$2,444.8 million  in  2013.   See  Note  3.3(b) to  our 
financial statements as of December 31, 2015 and 2014 and for the years ended December 31, 2015, 2014 and 2013 for a description of the accounting policies applicable 
to our construction services business. 

Cost of Sales and Services

The cost of sales and services increased by R$819.3 million, or 12.0%, to R$7,635.6 million in 2014 from R$6,816.3 million in 2013.  As a percentage of net operating 

revenues, cost of sales and services increased to 68.1% in 2014 from 60.2% in 2013.

The increase in costs of sales and services was principally due to the following factors:







an increase of R$133.8 million or 9.5%, in salaries and related charges due to the following factors:  (i) an increase of 6.8% in salaries since May 2014 on 
account of implementation of our career and wage plan, which had an impact of approximately R$75.6 million; (ii) an increase in the provision of retirement 
benefits, amounting to R$35.3 million, based on the increased number of employees who are entitled to request retirement, in addition to the wage increase 
in the period; and (iii) the increase in overtime pay, amounting to R$12.4 million, mainly due to a wage adjustment in the period and the increased number of 
hours worked;

an increase of R$116.1 million in depreciation and amortization, mainly due to the increase in operating intangible assets in 2014, arising principally from 
input of the works in operation;

an increase of R$70.4 million or 9.0% in expenses related to services, mainly due to the following factors:  (i) expenses totaling R$32.9 million related to the 
commencement of operations in Diadema in March 2014; (ii) a reversal of provisions in 2013 in the amount of R$18.3 million, resulting from the end of the 
agreement with the municipality of São Paulo; and (iii) higher expenses with the Corporate Program for Reduction of Water Loss, in the amount of R$19.8 
million;

90

an increase of R$45.8 million in the cost of electricity, mainly due to the average increase of 19.8% in free market tariffs and of 9.2% in regulated market 
tariffs, partially offset by an average decrease of 14.5% in the Tariff for the Use of Distribution System (TUSD), as a consequence of Provisional Presidential 
Decree 579/12 and Law 12,783/13;

an  increase  of  R$20.5  million  or  8.5%  in  expenses  related  to  water-treatment  materials,  mainly  due  to  increased  consumption  and  substitution  of  water-
treatment products in order to meet increased demand while maintaining the same efficiency levels in water treatment;

an increase of R$461.0 million in construction costs due to higher investments in 2014.







Gross Profit

As a result of the factors discussed above, gross profit for the year ended December 31, 2014 decreased by R$921.7 million, or 20.5%, from R$3,577.6 million in 2014 

to R$4,499.3 in 2013.  As a percentage of net operating revenues, gross profit decreased to 31.9% in 2014 from 39.8% in 2013.

Selling Expenses 

Selling expenses increased by R$99.5 million, or 15.6%, to R$736.6 million in 2014 from R$637.1 million in 2013.  As a percentage of net operating revenues, selling 

expenses increased to 6.6% in 2014 from 5.6% in 2013.  The increase in selling expenses was principally due to the following factors:







an increase of R$43.7 million in expenses for services, mainly due to the reversal of provisions in 2013 in the amount of R$22.6 million, resulting from the 
end of the agreement with the municipality of São Paulo and higher expenses related to credit recovery services and delivering bills in the amount of R$18.3 
million; 

an  increase  of  R$35.7  million,  or  34.4%,  in  credit  write-offs,  mainly  due  to  the  higher  provision  of  losses  with  allowance  for  doubtful  accounts  with 
wholesale customers; 

an increase of R$18.8 million, or 8.4%, in salaries and related charges due to the increase of 6.8% in salaries since May 2014 on account of implementation 
of our new job and salary plan.

Administrative Expenses

Administrative  expenses  increased  by  R$195.3  million,  or  26.8%,  to  R$924.4  in  2014  from  R$729.1 million  in  2013.   As  a  percentage  of  net  operating  revenues, 

administrative expenses increased to 8.2% in 2014 from 6.4% in 2013.

The increase in administrative expenses was principally due to the following factors:











an increase of R$58.7 million in advertising campaigns, mainly due to the intensification of our water conservation campaign;

an increase of R$44.9 million, or 24.4% in general expenses, mainly due to the expenses on judicial proceedings in the amount of R$37.1 million;

an  increase  of  R$43.5  million  or  14.7%,  in  salaries  and  related  charges  due  to  the  increase  of  6.8%  in  salaries  since  May  2014  associated  with  the 
implementation of our new job and salary plan.

an increase of R$12.1 million in software maintenance; and

an increase of R$7.1 million, in hiring of services due to the commencement of operations in Diadema in March 2014.

Other Operating Income (Expenses), Net 

91

Other  operating  expenses  were  R$5.9  million  in  2014  compared  with  R$5.7 million  operating  income  in  2013,  an  increase  of  204.2%.   Other  operating  expenses 
showed  an  increase  of  R$58.7,  mainly  due  to  the  following  factors:   (i)  provision  for  losses  of  projects  amounting  to  R$21.3  million;  (ii)  provision  for  losses  for  the 
agreement payments related to the concession for the municipality of Diadema in the amount of R$15.0 million; (iii) write-off of obsolete goods in the amount of R$11.4 
million; and (iv) provision for losses of hydrometers in the amount of R$11.4 million.  The decrease was partially offset by (i) higher fines applied to suppliers and service 
providers  in  the  amount  of  R$25.8  million;  and  (ii) higher  income  from  the  Program  for  Rational  Use  of  Water  (Programa  de  Uso  Racional  da  Água  –  PURA)  in  the 
amount of R$20.9 million. 

Financial income (expenses), Net

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

Financial  income  (expenses),  net  increased  by  R$152.7  million,  or  31.6%,  to  a  R$635.9  million  expense  in  2014  from  a  R$483.2 million  expense  in  2013.   As  a 

percentage of net operating revenues, financial income (expenses), net increased to 5.7% in 2014 from 4.3% in 2013.

The increase in financial income (expenses), net was principally due to:  









an increase in foreign exchange losses related to loans and financing of R$77.9 million as a result of the new funding in the amount of R$458.7 million;

an  increase  of  R$55.2  million  in  other  financial  expenses,  mainly  due  to  interest  expenses  totaling  R$47.9  million  related  to  the  commencement  of 
operations of two sewage treatment plants financed through leases;

an increase of R$42.8 million in other monetary variations mainly related to inflation adjustments for legal expenses in the amount of R$38.0 million; and

an increase of R$25.6 million in monetary variations on local loans and financing, mainly due to higher IPCA and TR variations in 2014 of 6.4% and 0.9%, 
respectively, as compared to 2013 variations of 5.9% and 0.2%, respectively. 

The increase in financial income (expenses), net was partially offset by:





an  increase  of  R$29.9  million,  or  9.9%  in  financial  investments  indexed  to  CDI,  held  in  the  period,  as  a  result  of  the  increase  in  the  Interbank  Deposit 
Certificate (CDI) in 2014 (10.8%), when compared to 2013 (8.2%); and

a  decrease  of  R$21.8  million  in  interest  expenses  on  local  loans  and  financing,  mainly  due  to  the  higher  interest  capitalization  occurred  in  2014  when 
compared to 2013. 

Profit before income tax and social contribution

As a result of the factors discussed above, profit before income tax and social contribution decreased by 52.0%, to R$1,274.8 million in 2014 from R$2,655.6 million 

in 2013.  As a percentage of net operating revenues, our profit before income tax and social contribution decreased to 11.4% in 2014 from 23.5% in 2013.

Income Tax and Social Contribution

Income tax and social contribution decreased by R$360.1 million, or 49.2%, to R$371.9 million in 2014 from R$732.0 million in 2013.  This decrease was principally 

due to a lower taxable income in 2014.

The  2014  effective  tax  rate  of  29%,  compared  to  28%  in  2013,  is  lower  than  the  34%  standard  tax  rate  because  we  recorded  interest  on  shareholder’s  equity  as  a 

deductible expense, as is permitted by tax law. 

92

Net Income for the year

As  a  result  of  the  factors  discussed  above,  net  income  decreased  to  R$903.0  million  in  2014  from  R$1,923.6  million  in  2013.   As  a  percentage  of  net  operating 

revenues, our net income decreased to 8.1% in 2014 from 17.0% in 2013.

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,  long-term  borrowings  from  Brazilian 
federal governmental financial institutions, and long-term financing from multilateral organizations and from domestic and international development banks, and also from 
capital markets.  As of December 31, 2015, we had R$1,639.2 million of cash and cash equivalents.  The outstanding current portion of our long-term indebtedness was 
R$1,526.3  million  as  of  December 31,  2015,  of  which  R$901.2  million  was  denominated  in  foreign  currency.   Long-term  indebtedness  was  R$11,595.3  million  as  of 
December 31, 2015, of which R$5,716.6 million consisted of foreign currency-denominated obligations.  

As a result of the financial impacts of the current water shortage to date, we have taken steps to minimize its negative effects, including amongst actions rearranging 
investments,  reducing  budget  expenses,  negotiating  overdue  credits  (mainly  with  the  State  and  municipalities  served  on  a  wholesale  basis),  implementing  contingency 
tariffs, and requesting extraordinary tariff revision.  For more information, see Note 1 of our 2015 financial statements.

Our management expects that the cash and cash equivalents available on December 31, 2015, the operating cash generation estimated for 2016 and the lines of credit 
available for investments are sufficient to meet its short-term liabilities and will not compromise the actions necessary to overcome the water shortage and preserve our 
consumers’ water supply.

Cash Flow

Cash Provided by Operating Activities 

Cash provided by operating activities is the single largest source of our liquidity and capital resources, and we expect that it will continue to be so in the future.  Our 
cash generated by operating activities was R$2,641.4 million, R$2,480.3 million and R$2,777.2 million in 2015, 2014 and 2013, respectively.  The main driver of our cash 
flow from operating activities relates to our revenue, which is due to the nature of our business and to the fact that we are expanding our infrastructure.  The increase in 
cash generated in 2015 is due principally to a lower taxable income in 2015.

Cash Used in Investing Activities

Our cash used by investing activities was R$2,459.5 million, R$2,757.7 million and R$2,281.5 million in 2015, 2014 and 2013, respectively.  The main driver of our 
cash flow from investing activities relates to the need to adjust the amount we invested in 2015, principally due to the water crisis and its impacts on our revenues.  Despite 
the  adverse  scenario  faced  as  a  result  of  the  water  crisis,  we  invested  in  the  São  Lourenço  PPP,  a  construction  project  planned  and  initiated  before  the  water  crisis, 
approximately R$700 million (including capitalized interest) that did not impact our cash flow in 2015. 

Cash Provided and Used in Financing Activities

Our  cash  used  in  financing  activities  was  R$265.7  million  in  2015,  our  cash  provided  in  financing  activities  was  R$218.5  million  in  2014,  and  our  cash  used  in 
financing  activities  was  R$629.7  million  in  2013.   The  main  driver  of  our  cash  flow  from  financing  activities  relates  to  the  proceeds  and  repayments  of  loans  used  to 
finance purchases of intangible assets related to our concession and program contracts, in order to support the expansion of our services and our payment of interest on 
shareholders’ equity.  

93

Indebtedness Financing

Our total financial indebtedness increased by 21.7%, from R$10,785.8 million as of December 31, 2014 to R$13,121.6 million as of December 31, 2015.  In addition, 
during the same period, our total foreign denominated indebtedness recorded increased by 31.5%, from R$4,346.3 million as of December 31, 2014 to R$6,617.8 million as 
of December 31, 2015.

As  of  December 31,  2015,  we  had  R$11,595.3  million  in  long-term  indebtedness  outstanding  (excluding  the  current  portion  of  long-term  indebtedness),  of  which 
R$5,716.6 million consisted of foreign currency-denominated long-term debt.  We had an outstanding current portion of long-term indebtedness of R$1,526.3 million as of 
December 31,  2015.   As  of  December 31,  2015,  R$901.2  million  of  this  current  portion  of  long-term  indebtedness  was  denominated  in  foreign  currency.   As  of 
December 23,  2015,  our  Standard &  Poor’s Rating  Service  domestic  rating was brA+ and  our  S&P international  rating was BB.  Since July  2013 we also  started to  be 
covered by Moody’s America Latina Ltda, by whom our national rating was Aa2.br and our global rating was Ba2, as of August 28, 2015.  

Various contractual agreements we have entered into, including certain financing agreements with Caixa Econômica Federal and BNDES, provide for liens over a 
portion  of  our  cash  flows  from  the  payment  of  water  and  sewage  provision  tariffs.   In  addition,  we  provide  as  guarantees  a  portion  of  our  cash  flow  generation  to 
transactions related to PPPs. Under these agreements, cash received from operations is required to pass through designated accounts.  In the event of a default under the 
relevant agreement, such cash and future cash flows that are required to be deposited in such accounts become restricted and are subject to security interests in favor of the 
relevant creditor.  As of December 31, 2015, a substantial portion of our monthly cash flows from operations was subject to these liens.  As of that date, the total amount of 
our  secured  debt,  including  indebtedness  benefiting  from  these  liens,  was  R$4,190.3  million.   See  “—Indebtedness  Financing—Financial  Covenants—Local  currency 
denominated indebtedness” and Note 16 to our financial statements.

The following table sets forth information on our indebtedness outstanding as of December 31, 2015:

Current

Noncurrent

Total

Final Maturity*

December 31, 2015

Denominated in local currency:

10th issue debentures
12th issue debentures

14th issue debentures

15th issue debentures

17th issue debentures

18th issue debentures

19th issue debentures

20th issue debentures
Caixa Econômica Federal
National Bank for Economic and Social Development 

(BNDES) Coastal region 

National Bank for Economic and Social Development 

(BNDES) PAC

National Bank for Economic and Social Development 

(BNDES) PAC II 9751

National Bank for Economic and Social Development 

(BNDES) PAC II 9752

National Bank for Economic and Social Development 

(BNDES) Onda Limpa

National Bank for Economic and Social Development 

(BNDES) Tietê III

Financial leasing

Other

Interest and others charges 

Total denominated in local currency

39,619
45,450

38,519

94,819

140,144

3,167

-

-
49,491

16,368

10,329

4,264

2,308

22,347

17,725
11,955

649

127,862

625,016

155,815
385,667

210,961

728,529

997,259

247,683

498,587

195,434
431,117

249,480

823,348

1,137,403

250,850

2020 TJLP + 1.92% (1st & 3rd series) & IPCA + 9.53% 
(2nd series)
2025 TR + 9.5%
2022 TJLP + 1.92% (1st & 3rd series) & IPCA + 9.19% 
(2nd series)
2019 CDI + 0.99% (1st series) & IPCA + 6.2% (2nd
series)
2023 CDI + 0.75% (1st series) & IPCA + 4.5% (2nd
series) & IPCA + 4.75% (3rd series)
2024 TJLP + 1.92% (1st and 3rd series) & IPCA + 8.25% 
(2nd series)

498,587

2017 CDI + 0.80% to 1.08%

494,500
1,014,850

494,500
1,064,341

2019 CDI + 3.80%
2015/2037 TR + 5% to 9.5%

49,104

66,984

31,206

23,660

184,082

265,663
522,940

1,270

-

65,472

2019 2.5% + TJLP

77,313

2023 2.15% + TJLP

35,470

2027 1.72% + TJLP

25,968

2027 1.72% + TJLP

206,429

2025 1.92% + TJLP

2028 1.66% + TJLP
2035 7.73% to 10.12% + IPC
2015/2018 TJLP + 2% (Fehidro) & TR + 12.00% 
(Presidente Prudente)

283,388
534,895

1,919

127,862

5,878,760

6,503,776

94

Denominated in foreign currency:
Inter-American Development Bank (IADB) US$560,826,000 

(2014 - US$541,097,000)

International Bank for Reconstruction and Development 
(IBRD) US$61,158,000 (2014 – US$45,860,000)

Eurobonds - US$ 140,000,000 (2014 - US$ 140,000,000)

Eurobonds - US$ 350,000,000 (2014 – US$ 350,000,000)

JICA 15 - ¥ 16,134,020,000 (2014 - ¥ 17,286,450,000)

JICA 18 - ¥ 14,506,240,000 (2014- ¥ 15,542,400,000)

JICA 17 - ¥ 1,565,564,000 (2014 - ¥ 1,029,992,000)

JICA 19 - ¥ 21,701,103,000 (2014 - ¥ 14,208,068,000)

IADB 1983AB - US$ 130,289,000 (2014 - US$ 154,231,000)

Interest and others charges

148,983

-

546,570

-

37,373

33,603

-

-

93,490

41,227

2,031,386

238,464

2,180,369

2016 to 2035 1.52% to 3.35%

238,464

2034 0.69%

-

546,570

2016 7.50%

1,362,570

1,362,570

2020 6.25%

485,853

436,548

50,201

701,978

409,578

-

523,226

2029 1.8% & 2.5%

470,151

2029 1.8% & 2.5%

50,201

2035 1.2% & 0.01%

701,978

2037 1.7% & 0.01%

503,068

2023 Libor + 1.88% to 2.38%

41,227

6,617,824
13,121,600

Total denominated in foreign currency
Total loans and financing

901,246
1,526,262

5,716,578
11,595,338

*      TR was 0.2250% per month as of December 31, 2015; CDI stands for Interbank Deposit Rate (Certificado de Depósitos Interbancários), which was 14.14% per annum as of December 31, 2015; IGP-M was 
10.54% per annum as of December 31, 2015; TJLP stands for Long-term Interest Rate (Taxa de Juros a Longo Prazo), published quarterly by the Central Bank, which was 7.0% per annum as of December 31, 
2015.

The following table shows the maturity profile of our debt, as of December 31, 2015, for the period indicated:

Loans and financing

1,526.3

1,435.0

1,315.8

2016

2017

2018

2019
(in millions of reais)
1,435.9

2020

After 2021

Total

2,226.9

5,181.7

13,121.6

Referring  to  all  of  our  foreign  currency-denominated  indebtedness,  the  amount  of  R$4,831.1  million,  net  of  transaction  costs,  as  of  December 31,  2015  was 

denominated in U.S. dollars and R$1,745.6 million was denominated in japanese yen. This indebtedness consisted principally of:



R$2,180.4 million (US$560.8 million) in U.S. dollar denominated loans contracted with the Inter-American Development Bank, or the IADB, composed of 
the following:  (i) two loans to finance the first phase of the Tietê Project in 1992 and one loan to finance the second phase in 2000, under which payments of 
principal are made in semiannual installments with final maturity in December 2016, December 2017 and July 2025.  The principal amount of this loan is 
adjusted  semiannually  for  the  variation  of  the  U.S.  dollar,  and  accrues  interest  at  a  rate  varying  from  1.14%  to  3.00%  plus  LIBOR;  (ii) credit  agreement 
executed in September 2010 with the IADB for the financing of the third phase of the Tietê Project.  This loan matures on September 3, 2035.  Amortizations 
will be made in semiannual installments starting in March 2017 after a grace period of six years.  The principal amount accrues interest at USD LIBOR;

95









R$238.5 million (US$61.2 million) in U.S. dollar denominated loans contracted with the IBRD which was entered into on October 28, 2009, amounting to 
US$100.0 million, for the financing of the Water Source Program (Programa Mananciais).  The loan matures in March 2034.  Amortizations will be made in 
semiannual  installments  starting  in  September 2019  after  a  grace  period  of  ten  years.   The  principal  amount  accrues  interest  at  the  USD  LIBOR  plus  a 
variable spread;

R$503.1 million (US$130.3 million) in U.S. dollar denominated loans from the AB Loan financing contracted with the IADB in May 2008.  Under this loan, 
payments of principal are made in annual installments with final maturity in May 2023.  The principal amount is adjusted semiannually for the LIBOR plus 
spread and accrues interest at a rate varying from 1.88% to 2.38%.  The proceeds were used to repay an outstanding series of debt securities in connection 
with the implementation of our investment plan; 

R$1,909.1 million (US$490.0 million) in U.S. dollar denominated Eurobonds issued in November 2006 (US$140.0 million with an interest rate of 7.5%) and 
in December 2010 (US$350.0 million with an interest rate of 6.25%).  Under these bonds, the payments of interest are made in semi-annual installments and 
principal  will  be  paid  at  the  final  maturity  in  2016  and  2020,  respectively.   The  proceeds  from  the  offering  were  used  to  repay  financial  commitments 
throughout 2007 and 2011; and

R$1,745.6 million  (¥53,906.9  million)  in  Japanese  yen  denominated  loans  contracted  with  the  JICA,  composed  of  the  following:   (i) ¥21,320.0 million 
denominated loans contracted in August 2004 for the financing of the environmental recovery program for the Baixada Santista metropolitan region, called 
the Clean Wave Program (Programa Onda Limpa).  Under these loans, the payments of principal are made in semi-annual installments with final maturity in 
August 2029.  The principal amount accrues interest at rates that vary from 1.8% to 2.5% per year; (ii) ¥6,208 million in denominated loans contracted in 
October 2010  for  the  financing  of  the  environmental  improvement  program  in  the  basin  of  the  Billings  dam.   The  loan  matures  in  October 2035.  
Amortizations will be made in semiannual installments after a grace period of seven years, starting in October 2017.  The principal amount accrues interest at 
a rate that varies from 0.01% to 1.2% per year; (iii) ¥19,169.0 million denominated loans contracted in February 2011 to complement the financing for the 
first stage of the Clean Wave Program (Programa Onda Limpa), with commercial conditions similar to the loan entered into in August 2004.  These funds 
were used for the provision of works and services in the Baixada Santista metropolitan region.  The credit agreement expires in 18 years and interest varies 
from  1.8%  to  2.5%  per  year;  and  (iv) ¥33,584 million  denominated  loan  in  February 2012  for  the  financing  of  the  Corporate  Program  for  Water  Loss 
Reduction (Programa Corporativo para Redução de Perdas).  The loan matures in February 2037.  Amortizations will be made in semiannual installments 
after a grace period of seven years, starting in February 2019.  The principal amount accrues interest at rates that vary from 0.01% to 1.7% per year.

Our borrowings from multilateral institutions and with Government Agency, such as the IADB, IBRD and JICA are guaranteed by the federal government, and have a 
counter-guarantee  from the  state  of São  Paulo.  For further  information  on  the terms  of  these loan agreements, see “Item 7.B.  Related  Party Transactions—Government 
Guarantees of Financing”.

Our  outstanding  domestic  debt  was  R$6,503.8  million  as  of  December 31,  2015  and  consisted  primarily  of  real-denominated  loans  from  federal  and  state-owned 
banks,  in  particular,  Caixa  Econômica  Federal  and  BNDES,  as  well  as  debentures  issued  in  November 2009,  June 2010,  February 2011,  February 2012,  January  2013, 
October 2013, December 2013, December 2014 and July 2015, and financial leasing. 

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















from 2003 to 2014, we have entered into several financing agreements with Caixa Econômica Federal, pursuant to which amortizations of principal are paid 
in  up  to  in  60,  120,  180  or  240 months  in  monthly  installments  commencing  30 days  following  the  applicable  grace  period,  which  varies  from  14  to 
48 months from the date of signature of the line of credit agreement.  The final maturity is 2038.  The principal amount accrues interest from 5.0% to 9.5%.  
The financing agreements are collateralized  (i) by collections of  daily  billings of water  supply  and sewage services  up to the total  amount of the debt, or 
(ii) by  a  monthly  plan  of  billings  corresponding  to  the  minimum  of  three  times  the  monthly  charge,  depending  on  the  terms  of  the  relevant  financing 
agreement.  In September 2015, we settled our financing contracts celebrated between 1996 and 1998.

in  November 2007,  we  entered  into  a  R$129.9 million  financing  agreement  with  BNDES.   Amortizations  of  the  principal  amount  are  being  made  in  96 
successive monthly installments, with final maturity in 2019.  The principal amount accrues interest at the TJLP, but limited to 6.0% per year, plus 2.50% per 
year.  If the TJLP exceeds 6.0% per year, such excess will be added to the principal amount.  The financing agreement is collateralized by part of the billings 
from the provision of water and sewage services;

in  May 2008,  we  entered  into  a  R$174.0 million  financing  agreement  with  BNDES.   Amortizations  of  the  principal  amount  are  being  made  in  150 
successive monthly installments, with final maturity in 2023.  The principal amount accrues interest at the TJLP, but limited to 6.0% per year, plus 2.15% per 
year.  If the TJLP exceeds 6.0% per year, such excess will be added to the principal amount.  The financing agreement is collateralized by part of the billings 
from the provision of water and sewage services;

in  March 2010,  we  entered  into  a  R$294.3 million  financing  agreement  with  BNDES.   Amortizations  of  the  principal  amount  are  being  made  in  156 
successive monthly installments, with final maturity in 2025.  The principal amount accrues interest at the TJLP, but limited to 6.0% per year, plus 1.92% per 
year.  If the TJLP exceeds 6.0% per year, such excess will be added to the principal amount.  The financing agreement is collateralized by part of the billings 
from the provision of water and sewage services; 

in 2011, we entered into financial leases in the total amount of R$49.6 million with certain contractors for the construction of infrastructure on land we own.  
During the construction phase, we recognize an intangible assets and the related liability of the lease at fair value.  Upon the conclusion of the construction, 
we  began  paying  the  rental  of  the  infrastructure  (in  240  installments)  and  the  lease  was  updated  accordingly  to  the  contract.   On  August 31,  2013,  SES 
Campo Limpo Paulista and Várzea Paulista started operations, and the corresponding amount as of December 31, 2014 was of R$138,602 million;

in  March 2012,  we  entered  into  a  R$180.8 million  financing agreement with  BNDES.  Amortization  of  the principal  amount  is  being  made  in  up  to 156 
successive monthly installments, with the final maturity in 2027.  The principal amount accrues interest at the TJLP but it is limited to 6.0% per year plus a 
yearly  1.72%.   If  the  TJLP  exceeds  6.0%  per  year,  such  excess  will  be  added  to  the  principal  amount.   This  financing  agreement  is  collateralized  with  a 
portion of the revenues from the provision of water and sewage services;

in  February  2013,  we  entered  into  a  R$1.3  billion  financing  agreement  with  BNDES.   Amortization  of  the  principal  amount  shall  be  paid  in  up  to  144 
successive monthly installments after the grace period of 36 months, with the final maturity in 2028.  The principal amount accrues interest at the TJLP but is 
limited  to  6.0%  per  year  plus  a  yearly  1.66%.   If  the  TJLP  exceeds  6.0%  per  year,  such  excess  will  be  added  to  the  principal  amount.   This  financing 
agreement is collateralized with a portion of the revenues from the provision of water and sewage services;

97









in December 2013, we entered into a R$415.8 million financing agreement with BNDES.  Due to the water crisis, the investment plan was revised and in 
January 2016 this financing agreement was cancelled.

in  June  2014,  we  entered  into  a  R$61.1 million  financing  agreement  with  BNDES.   Amortization  of  the  principal  amount  shall  be  paid  in  up  to  108 
successive monthly installments after the grace period of 36 months, with the final maturity in 2026.  The principal amount accrues interest at the TJLP but is 
limited  to  6.0%  per  year  plus  a  yearly  1.76%.   If  the  TJLP  exceeds  6.0%  per  year,  such  excess  will  be  added  to  the  principal  amount.   This  financing 
agreement is collateralized with a portion of the revenues from the provision of water and sewage services;

in  June  2015,  we  entered  into  a  R$  747.4   million  financing  agreement  with  BNDES.   Amortization  of  the  principal  amount  shall  be  paid  in  up  to  204 
successive monthly installments after the grace period of 36 months, with the final maturity in 2035.  The principal amount accrues interest at the TJLP but is 
limited  to  6.0%  per  year  plus  a  yearly  2.18%.   If  the  TJLP  exceeds  6.0%  per  year,  such  excess  will  be  added  to  the  principal  amount.   This  financing 
agreement is collateralized with a portion of the revenues from the provision of water and sewage services; and

in October 2015, we entered into a R$48.3 million financing agreement with FINEP – Financiadora de Estudos e Projetos.  Amortizations of the principal 
amount shall be paid in up in 91 successive monthly installments after the grace period of 30 months, with the final maturity in 2025. The principal amount 
accrues interest at the TJLP but it limited to 6.0% per year plus a yearly 1.5%.  If TJLP exceeds 6% per year, such excess will be added to the principal 
amount. This financing agreement is collateralized with a portion of the revenues from the provision of water and sewage services.

Under BNDES program, in the amount of R$826.1 million, we issued three tranches of debentures.  In November 2009, we issued our tenth tranche of debentures in 
the aggregate principal amount of R$275.4 million.  The debentures are divided in three series:  the first and third series will mature in November 2020 and the second in 
December 2020.  The debentures of the first and third series, in the aggregate principal amount of R$77.1 million and R$115.7 million, respectively, bear interest at 1.92% 
per year,  plus  the  TJLP.  If  the  TJLP exceeds  6.0% per year,  such excess  will  be added to  the  principal amount.   The debentures of the second series,  in  the aggregate 
principal amount of R$82.6 million, bear interest at the rate of the IPCA index plus 9.53% per year.  This issuance was entirely subscribed by BNDES.  In February 2011, 
we issued our fourteenth tranche of debentures, the second tranche out of those three, also subscribed exclusively by BNDES.  These debentures are divided in three series:  
the first and third series will mature in February 2022 and the second, in March 2022.  The debentures of the first and third series, in the aggregate principal amount of 
R$77.1 million and R$115.7 million, respectively, bear interest at 1.92% per year, plus the TJLP.  If the TJLP exceeds 6.0% per year, such excess will be added to the 
principal amount.  The debentures of the second series, in the aggregate principal amount of R$82.6 million, bear interest at the rate of the IPCA index plus 9.20% per 
year.  In October 2013, we concluded our eighteenth issuance of debentures, the third tranche out of those three also subscribed exclusively by BNDES.  These debentures 
are divided in three series:  the first and third series will mature in October 2024 and the second, in November 2024.  The debentures of the first and third series, in the 
aggregate principal amount of R$77.1 million and R$115.7 million, respectively, bear interest at 1.92% per year, plus the TJLP.  If the TJLP exceeds 6.0% per year, such 
excess will be added to the principal amount.  The debentures of the second series, in the aggregate principal amount of R$82.6 million, bear interest at the rate of the IPCA 
index plus 8.26% per year.  In December 2013, BNDES subscribed to the debentures of the first and second series.  In December 2014 and July 2015, BNDES subscribed 
in part to the debentures of the third series and will subscribe to the other debentures of the third series in 2016.  We have used the funds raised from the three issuances for 
investments primarily in the Corporate Program for Water Loss Reduction and on improvements and reforms of the Rio Grande’s water treatment plant, including other 
projects for water supply and sewage collection systems in the São Paulo Northern Coast, Paraíba Valley and Mantiqueira Regions.

Additionally, in June 2010, we issued 500,000 debentures to the FGTS, based on the FGTS’s program to finance companies in the sanitation, transport and real estate 
businesses (our twelfth issuance).  The debentures bear interest based on the TR plus 9.5% per year and will mature in June 2025.  The debentures bear a grace period of 
four years in respect of payments.  We used the proceeds from the twelfth issuance to fund a portion of our capital expenditure program in the water supply and sewage 
system. 

98

In February 2012, we issued our fifteenth issuance of debentures in two series in the aggregate principal amount of R$771.0.  The first and second series will mature in 
February 2017 and 2019, respectively.  The debentures of the first series (in the aggregate principal amount of R$287.3 million) bear interest at a rate of CDI plus 0.99% 
per year.  The second series (in the aggregate principal amount R$483.7 million) bears interest at a rate of IPCA plus 6.2% per year.  The net proceeds were used to repay 
financial commitments throughout 2012, including the early redemption of our thirteenth debentures issuance. 

In November 2012, we carried out our sixteenth debentures issuance of R$500 million, with a maturity date of November 2015 and bearing interest, each quarter with 

an interest rate of between 0.30% and 0.7% per year plus the CDI rate.  The proceeds of this issuance were used to pay our financial commitments for 2012 and 2013. 

In January 2013, we carried out our seventeenth debentures issuance of R$1.0 billion in three series, the first for R$424.7 million with maturity date of January 2018 
and with an interest rate of 0.75% per year plus the CDI rate, the second for R$395.2 million with a maturity of January 2020 and with the interest rate of 4.50% per year 
plus IPCA variation and the third for R$180.1 million with a maturity date of January 2023 and with an interest rate of 4.75% per year plus IPCA variation.  The proceeds 
of this issuance were used to pay our financial commitments for 2013. 

In  June 2014,  we  carried  out  our  nineteenth  debentures  issuance  of  R$500 million,  with  a  maturity  date  of  June 2017  and  bearing  interest,  each  semester  with  an 

interest rate of between 0.80% and 1.08% per year plus the CDI rate.  The proceeds of this issuance were used to pay our financial commitments for 2014 and 2015.

In December 2015, we carried out our twentieth debenture issuance of R$500 million, with a maturity date of December 2019 and bearing interest, each semester with 
an interest rate of 3.80% per year plus the CDI rate.  The proceeds of this issuance shall be used to strengthen our cash position and refinance financial commitments which 
mature in the first trimester of 2016.

Part  of  our  real-denominated  indebtedness  is  indexed  to  take  into  account  the  effects  of  inflation.   This  debt  provides  for  inflation-based  increases  to  the  principal 

amount, determined by reference to the IPCA.

Financial Covenants

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

Foreign currency denominated indebtedness

With respect to our indebtedness denominated in U.S. dollars, including our borrowings from the IADB, we are subject to financial covenants, including limitations on 

our ability to incur debt.  For example:

The financial covenants in our Loans Nos. 713, 896 and 1212 from the IADB require as follows:

(a)

our  tariff  revenues  must  be  sufficient  to  cover  the  operational  expenses  of  our  system,  including  administrative,  operating  and  maintenance  expenses,  and 
depreciation;

(b) our tariff revenues must provide a return on the balance sheet value of our property, plant, and equipment of not less than 7%; and
(c) during project execution, the balance of our short-term borrowings must not exceed 8.5% of our total equity.

The financial covenants in our AB Loan Agreements with the IADB (No. 1983AB) require as follows:

(a) our debt service coverage ratio must be greater than or equal to 2.35:1.00; and
(b) our ratio of Net Debt (defined as all borrowed money, including debentures and Eurobonds, less interest and financial charges that have been provisioned for the 
current  period)  to  Adjusted  EBITDA  (defined  as  our  net  income  before  net  financial  expenses,  income  tax  and  social  contribution  tax,  depreciation  and 
amortization,  non-operating  income  or  expenses,  and  extraordinary  items  net  of  income  tax  and  social  contribution,  as  set  forth  in  our  consolidated  financial 
statements), each determined on a consolidated basis, must be less than 3.65:1.00.

In a Letter Agreement executed on September 30, 2015, the IADB irrevocably agreed not to exercise its right to accelerate its loans to us if our ratio of Net Debt to 

Adjusted EBITDA is equal to or exceeds 3.65:1.00 for one fiscal quarter only during the period from September 30, 2015 to October 1, 2016.  As a result, the IADB will 
only be able to accelerate its loans to us if we breach this ratio for more than one quarter during that period.  For further information, see Note 16 to our financial 
statements.

99

The  indentures  relating  to  our  US$  140.0 million  7.5%  notes  due  2016  and  US$  350.0 million  6.25%  notes  due  2020  prohibit,  subject  to  some  exceptions,  the 
incurrence of additional debt in the event that:  (i) the ratio of Adjusted Total Debt to adjusted EBITDA (as defined in the related indentures) is greater than 3.65:1.00:  or 
(ii) the Debt Service Coverage Ratio (as defined in the related indentures) is less than 2.35:1.00.  This agreement has a cross-default clause, i.e. the early maturity of any 
debt in connection with our loans or the loans of any of our subsidiaries in a total principal amount of US$25.0 million or more (or the corresponding amount in other 
currencies) shall imply this agreement’s early maturity.  See Note 16 to our financial statements.

In addition, any significant devaluation of the real will affect the total debt portion denominated in foreign currencies when measure in reais.  As a result, the Adjusted 

Total or Net Debt in reais will be affected, with consequent impacts in the ratio between Adjusted Total or Net Debt to adjusted EBITDA.

As of December 31, 2015 and 2014, we had met all the requirements set forth by these loans and financing agreements. 

Local currency denominated indebtedness 

With respect to our outstanding indebtedness denominated in reais, we are subject to financial covenants.

The covenants clauses apply to all of SABESP’s indebtedness with BNDES, including the 10th, 14th, and 18th issuances of debentures held by BNDES, which totaled 
R$1,312.5 million as of December 31, 2015.  The only financing agreement which is exempt from the renegotiated financial is contract No. 08.2.0169.  See Note 16 (a) (ii) 
to our financial statements.

 In summary, the BNDES financings specify two bands for the ratios of Adjusted Net Debt / Adjusted EBITDA, Adjusted EBITDA / Adjusted Financial Expenses, and 
Other Onerous Debt / Adjusted EBITDA.  The financings also specify a collateral mechanism by which we assign a portion of its tariff payment receivables to BNDES in 
order to provide a partial guarantee of the amounts due under the financings.  Under this mechanism, each month we must ensure that a portion of the tariff payments which 
we receive are deposited on a daily basis into a blocked collateral account, before being released to a regular movements account later in the day provided that BNDES has 
not notified the bank that we are in default.  If the ratio of Adjusted EBITDA / Adjusted Financial Expenses is equal to or higher than 3.50, the ratio of Adjusted Net Debt / 
Adjusted  EBITDA  equal  to  or  lower  than  3.00,  and  the  Other  Onerous  Debt  /  Adjusted  EBITDA  equal  to  or  lower  than  1.00,  the  amount  that  must  pass  through  this 
blocked collateral account is R$170.2 million per month.  If one of the three aforementioned ratios are not met in any two or more quarters, consecutive or not, within a 
twelve-month period, yet remain within the following band of ratios: Adjusted EBITDA / Adjusted Financial Expenses lower than 3.50 but equal to or higher than 2.80, 
Adjusted Net Debt / Adjusted EBITDA equal to or lower than 3.80 but higher than 3.00, and Other Onerous Debt / Adjusted EBITDA equal to or lower than 1.30 but 
higher than 1.00,  the amount that must pass through the blocked collateral account is automatically increased by 20%, to R$204.3 million per month.

The current covenant clauses are: 

A. Maintenance  of  the  following  ratios,  calculated  quarterly  and  relative  to  amounts  accumulated over  the  last  12  months  at  the  time  of  disclosure  of  reviewed 

quarterly financial statements or audited annual financial statements:







Adjusted EBITDA / Adjusted Financial Expenses equal to or higher than 3.50;

Adjusted Net Debt / Adjusted EBITDA equal to or lower than 3.00; and

Other Onerous Debt / Adjusted EBITDA equal to or lower than 1.00 (where “Other Onerous Debt” is equal to the sum of (i) social security liabilities 

and health care plans, (ii) installment payments of tax debt and (iii) installment payments of debt with electricity providers).

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B.    If any one of the ratios specified in A. above are not met in any two or more quarters, consecutive or not, within a twelve-month period, we shall be deemed to be 
in non-compliance with the first band ratios and must, as a result, automatically increase the amount passing through the blocked collateral account by 20%, to 
R$204.3 million per month, provided that the following second band ratios are met:







Adjusted EBITDA / Adjusted Financial Expenses lower than 3.50 but equal to or higher than 2.80;

Adjusted Net Debt / Adjusted EBITDA equal to or lower than 3.80 but higher than 3.00; and

Other Onerous Debt / Adjusted EBITDA equal to or lower than 1.30 but higher than 1.00.

C.    If any one of the second band ratios specified in B. above are not met for any one quarter, or if we are required to but fails to ensure that the increased monthly 
amount specified in B. above passes through the blocked collateral account, then we shall be deemed to be in non-compliance with its ratio covenants, in which 
case BNDES may at its discretion: 







require us to provide additional financial guarantees within a deadline specified by BNDES, which may not be less than 30 days;

suspend the release of funds; and/or

declare the financings to be immediately due and payable.

As of December 31, 2015, the amount that must pass through the blocked collateral account is R$204.3 million per month, not including the financial guarantees for 

financing contract No. 08.2.0169.1.

The financial covenants applicable to financing contract No. 08.2.0169.1 are the following:







Adjusted EBITDA / Adjusted Net Operational Revenue equal to or higher than 38%;

Adjusted EBITDA / Adjusted Financial Expenses equal to or higher than 2.35; and

Adjusted Net Debt / Adjusted EBITDA equal to or lower than 3.20.

BNDES will annually verify the maintenance of the aforementioned ratios for contract 08.2.0169.1 by reviewing our audited annual financial statements, which must 
be presented to BNDES or published by April 30 of the following year to which the financial statements refer.  If we maintain all of the financial covenants for contract 
08.2.0169.1, BNDES shall reduce the interest charged in such financing contract from 2.15% to 1.82% per annum.  If the financial covenants are maintained, the interest 
rate is reduced as of June 16 of the same year in which the financial covenants were verified until June 15 of the subsequent year.

The financing agreement established with BNDES in March 2010 is subject to a cross-default clause.  For example, the early maturity of any of our debts, the financial 

contracts and/or amounts of which may compromise the obligations stipulated in the indenture shall cause the early maturity of such agreement.

In addition, all of our financing agreements with Caixa Econômica Federal and our financing agreements with BNDES established in November 2007, May 2008 and 
March  2012  are  subject  to  a  Performance  Improvement  Agreement  (Acordo  de  Melhoria  de  Desempenho).   The  Performance  Improvement  Agreement,  dated  May 28, 
2007, as amended in August 2012, was entered into between us and the federal government, and Caixa Econômica Federal and BNDES as intervening parties.  Pursuant to 
this agreement, we were required to comply with at least four of eight financial and operating ratios stipulated for the period 2012 to 2016.  If we fail to comply with any of 
the  ratios  required  by  Caixa  Econômica  Federal  and  BNDES,  either  may  suspend  our  credit  lines  and  we  will  be  prevented  from  entering  into  any  other  financing 
agreements with those entities.  We have the ability, however, to renegotiate the ratios if needed.  On March 14, 2013, the Ministry of Cities revoked Normative Instruction 
05 of 2008, which regulated the Agreement on Performance Improvement (Acordo de Melhoria de Desempenho), or API.  According to the Instruction, the APIs executed 
by March 14, 2013 will remain valid until their respective expiration dates, and it is not necessary to execute or reschedule APIs for new contracts. 

101

Our financing agreements with Caixa Econômica Federal do  not contain material  financial covenants.  The agreement with Caixa Econômica Federal has a cross-

default clause.  See Note 16 to our financial statements.

With respect to our outstanding debentures, the twelfth debenture issuance requires us to maintain an adjusted current ratio (current assets divided by current liabilities, 
excluding from current liabilities the current portion of noncurrent debts incurred by us that is recorded in current liabilities) higher than 1.0:1.0 and an EBITDA/financial 
expenses ratio equal to or higher than 1.5:1.0.  The twelfth debenture issuance has an accelerated maturity clause, which is triggered if our credit ratings are downgraded 
two levels below the “brAA-” Brazil National Scale rating assigned to our debentures by the credit rating agency Standard & Poor’s at the time of their issuance.  On May 
11, 2016, our credit rating and the one assigned to the twelfth debenture issuance by Standard and Poor’s were both “brA+”.  This issuance also has a cross-default clause.  
See Note 16 to our financial statements.

The tenth, fourteenth and eighteenth issuances follow the covenants set forth with BNDES, as described above, and contain a cross-default clauses.  See Note 16 to our 

financial statements.

The  fifteenth,  sixteenth,  seventeenth,   nineteenth  and  twentieth  issuances  require  us  to  maintain  an  EBITDA/paid  financial  expenses  ratio  equal  to  or  higher  than 

1.5:1.0 and an adjusted total debt/EBITDA ratio equal to or lower than 3.65:1.0.  These issuances have a cross-default clause.  See Note 16 to our financial statements.

The table below shows the more restrictive covenants ratios and our financial covenants ratios as of December 31, 2015.

Adjusted EBITDA / Adjusted financial expenses 
Adjusted net debt / Adjusted EBITDA
Net debt / Adjusted EBITDA
Other onerous debt1/ Adjusted EBITDA
Adjusted current ratio
EBITDA/Paid financial expenses

Restrictive Ratios
Equal to or higher than 2.80:1.00
Equal to or lower than 3.80:1.00
Equal to or lower than 3.65:1.00
Equal to or lower than 1.30:1.00
Higher than 1.0
Equal to or higher than 2.35:1.00

Ratio as of December 31, 2015
4.71
2.84:1.00
3.26:1.00
0.70
1.45:1.00
5.59:1.00

(1)

“Other Onerous Debts” correspond to the sum of social security liabilities, health care plan, installment payment of tax debts and installment payment of debts with the electricity supplier.

As of December 31, 2015 and 2014, we had met all the requirements set forth by these loans and financing agreements.

Capital Requirements

We  have,  and  expect  to  continue  having,  substantial  liquidity  and  capital  resource  requirements.   These  requirements  include  debt-service  obligations,  capital 

expenditures to maintain, improve and expand our water and sewage systems, and dividend payments and other distributions to our shareholders, including the State.

Capital Expenditures

Historically, we have funded and plan to continue funding our capital expenditures with funds generated by operations and with long-term financing 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 2015, we recorded R$3.5 billion to improve and expand our water and sewage system and to protect our water source in order to 
meet the growing demand for water and sewage services in the state of São Paulo.  We have budgeted investments in the amount of approximately R$12.5 billion from 
2016 through 2020.  See “Item 4.A. History and Development of the Company – Capital Expenditure Program”.

Dividend Distributions

We are required by our bylaws to make dividend distributions, which can be made as payments of interest on shareholders’ equity to our shareholders in an amount 
equal to or higher than 25% of the amounts available for distribution.  We declared dividends of R$149.9 million, R$252.3 million and R$537.5 million in 2015, 2014 and 
2013, respectively.  See “Item 7.B. Related Party Transactions – Dividends”.

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

Our policy is to invest continually in the modernization of equipment and identify and evaluate the technology needed to improve our provision of basic sanitation 
services while promoting environmental protection and maintaining our competitiveness and profitability.  In 2015, 2014 and 2013, we invested R$14.7 million, R$10.7 
million and R$6.4 million, respectively, in research and development.

With respect to our partnership with FAPESP to develop and support research projects involving researchers from graduate schools, the State of São Paulo and our 
employees, the projects are equally financed by us and FAPESP. Under this partnership, two phases of projects were carried out. In the first phase, 10 projects have been 
approved and 9 of them have been executed and concluded.  They are related to:  (i) the development of technology related to the use of membrane filtration in water and 
sewage  treatment,  (ii) alternatives  for  the  treatment,  use  and  disposal  of  sludge  from  water  and  sewage  treatment  plants,  (iii) new  technologies  for  the  implementation, 
operation  and  maintenance  of  water  distribution  and  sewage  collection  systems,  (iv) new  technologies  for  improvements  in  unitary  operations  processes,  (v) 
monitoring water quality; (vi) energy efficiency and (vii) the sanitary economy.

The 9 projects concluded in the first round have led to several patents and software registrations, including:









“Use  of  Autonomous  Microlaboratories  to  Monitor  Phosphorus  in  Real  Time”  –  This  project  consists  of  the  development  of  a  microlaboratory  to  detect 
phosphorus in water bodies using a more efficient method than traditional processes;

“Intensive  Monitoring  of  São  Paulo  Metropolitan  Region  Reservoirs,  with  emphasis  on  cyanobacteria  and  its  correlation  with  physical  and  chemical 
parameters:   the   Billings  case”  –  One  of  the  results  of  this  project  was  the  development  of  a  forecasting  model  to  determine  the  concentration  of 
cyanobacteria in water sources;

“Specialized System for the Detection and Diagnosis of Leaks in Urban Water Lines” – This project represents the first phase of the development of a water 
leakage  detection  system  with  less  dependence  on  manual  detection  by  the  field  operators.   The  acoustic  signals  derived  from  the  leak  are  recorded  on  a 
portable GPS device that generates a database to be posteriorly correlated and analyzed; and 

“Development  and  Application  of  a  Continuous  Monitoring  System  of  Flocs  for  Flocculation/Coagulation  and  Filtration  Optimization”  –  This  project 
resulted in the construction of a prototype for online detection of the water flocculation index, optimizing the quantity of chemicals used in a water treatment 
station.

Some of the research institutions with whom we have partnered on the abovementioned projects are the University of São Paulo (Universidade de São Paulo - USP), 
the Aeronautic Technical Institute (Instituto Tecnológico de Aeronáutica - ITA), São Paulo State University (Universidade Estadual Paulista – UNESP), Federal University 
of São Paulo – UNIFESP, and the National Institute of Spacial Research (Instituto Nacional de Pesquisas Espaciais – INPE). 

In May 2013, we launched the second phase of our agreement with FAPESP.  In this second phase, the seven lines of research were defined in greater detail in order to 
precisely contemplate our needs.  In this phase, 37 proposals were submitted, 10 proposals were approved according to the technical-scientific criteria and 8 of them had 
their agreements signed in 2015, as follows:





Development of a National Correlated Signal Optimized for Locating and Detecting Leaks in Underground SABESP Water Pipes - UNESP;

Development of an Aerobic Granular Sludge for Simultaneous Removal of Organic Matter, Nitrogen and Phosphorous from Sanitary Sewage – USP; 

103













Sewage Sludge Composting:  Evaluation of the Process, Generated Product and its Costs;

Diagnosis, Management and New Treatment Alternatives – USP;

Saxitoxins in Water Supply:  Production of Analytical Standards, Development of Analytical Methodologies and the Degradation Study – USP; 

Feasibility of the Use of Water Treatment Sludge as Landfill Cover Material and in the Construction of Compacted Soil Landfills - USP;

Online Analysis of Water Quality – USP; and

Separation  Systems  by  Membranes  for  the  Public  Supply  of  Water:   Hiring  Projects  Mechanisms  and  Treatment  of  Contaminated  Underground  Water  – 
USP. 

In  2015,  we  entered  into  a  financing  agreement  with  the  Brazilian  Agency  for  Innovation  –  FINEP  for  the  “Sabesp  –  Technological  Innovations  for  the  Sanitation 
Sector” plan.  This plan is part of the “FINEP Innovates Brazil” program and aims at supporting Brazilian companies’ plans for strategic investment in innovation.  This 
plan  must  detail  a  company’s  targets  and  goals  for  the  period  during  which  they  will  receive  financing,  pursuant  to  the  Federal  Government’s  “Greater  Brazil  Plan  – 
PBM”.  This plan consists of four projects, whose costs total approximately R$60 million, as follows:  (i) production system for reused water in urban and industrial uses; 
(ii) biofiltration units for odor control; (iii) sludge dryer based on solar radiation for sewage treatment stations in the city of Franca, Franca Sewage Treatment Station; and 
(iv) plasma gasification system for solid waste from sewage treatment plants.

We also entered into an agreement with the Fraunhofer Institute in Germany in 2011 in order to obtain biomethane from the sewage treatment process to be used as 
fuel for cars  The objective is to mobilize a fleet of 49 cars using biomethane fueled by a sewage treatment process instead of gasoline.  This project has been delayed due 
to  a  judicial  dispute  between  the  supplier  of  the  equipment  and  the  Fraunhofer  Institute  which  has  temporarily  impeded  the  importation  of  equipment  donated  to  the 
Fraunhofer Institute. In 2015, the dispute was resolved and the project proceeded.  In 2016, we expect to receive the imported equipment and execute the construction for 
their installation.

Seeking energy efficiency in our operations, we projected an equipment to calculate the correct oxygen dosage to be used in air diffusors, which are used in the sewage 

treatment process.  The project aims also to find the best cleaning period and when these devices have to be replaced.

Additionally, we have developed custom made biofilters to reduce the odor from sewage pumping stations and sewage treatment plants.

D. Trend Information  

Several factors may affect our future results of operations, liquidity and capital resources, including:











the interests of our controlling shareholder;

regulations issued by ARSESP regarding several aspects of our business, with respect to our ability to adjust our tariffs and the competency of state and 
municipalities to manage their sanitation affairs;

Brazilian economic conditions;

the effects of extreme weather events;

the effects of any continuous international financial turmoil that may affect liquidity in the Brazilian capital and lending markets;

104

















the effects that further changes in the Basic Sanitation Law and its interpretation may have on the basic sanitation industry in Brazil and on us;

the effects of inflation in our results of operations;

the effects of fluctuations in the value of the Brazilian real and in interest rates on our net interest income;

the renewal of our concession agreements; 

the impact on our business of the water consumption reduction incentive program and other measures we took in 2014, 2015 and in the first months of 2016 
as well as any other measures we may need to take until the water levels of our reservoirs are normalized and sufficient to continuously serve the customers 
in the São Paulo metropolitan region;

the impact on our business of lower water consumption practices adopted by our customers during the current water crisis, which may remain in place even 
after the water levels of our reservoirs normalize;

decisions by DAEE and ANA limiting the volume of water that may be extracted from the Cantareira System, the main water system we use to serve the São 
Paulo metropolitan region, and the measures that we may be required to take to ensure the provision of water to our customers; and

the formalization of agreements with certain of the municipalities we serve.

Some of these factors are described in more detail under “5.A. Operating and Financial Review and Prospects”.

In addition, you should read “3.D. Risk Factors” for a discussion of the risks we face in our business operations, which could affect our business, results of operations 

or financial condition.

E. Off-Balance Sheet Arrangements

We had no off-balance sheet arrangements as of December 31, 2015.

F. Tabular Disclosure of Contractual Obligations 

Our debt obligations and other contractual obligations as of December 31, 2015 were as follows:

Loans and financing
Estimated interest payments(1)
Accounts payable to suppliers and contractors
Services payable
Program contract commitments
Purchase obligations(2)
Total

Less than 1 year

1-3 years

3-5 years
(in millions of reais)

More than 5 years

Total

1,526.3
504.1
248.2
387.3
238.9
3,293.5
6,198.3

2,750.8
1,075.2
-
-
65.5
3,130.3
7,021.8

3,662.8
813.5
-
-
28.6
1,368.6
5,873.5

5,181.7
1,126.9
-
-
16.8
7,641.1
13,966.5

13,121.6
3,519.7
248.2
387.3
349.8
15,433.5
33,060.1

(1) Estimated interest payments on loans and financing were determined considering the interest rates as of December 31, 2015.  However, our loans and financing are subject to variable interest indexation 

and foreign exchange fluctuations, and these estimated interest payments may differ significantly from payments actually made.  The debt agreements have cross-default clauses.

(2) The purchase obligations are the contractual obligations of investments and expenses.

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 interest rates on our indebtedness outstanding as of December 31, 2015, see Note 16 to our financial statements as of December 31, 2015 and 2014 and for 
the years ended December 31, 2015, 2014, 2013 included elsewhere in this annual report.

105

ITEM 6.

DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES

A. Directors and Senior Management

Under our bylaws 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 elect the majority of our board of directors and, therefore, our direction and future operations.  Upon the 
election of a new State governor and any resulting change in the administration of the State, all or some of the members of our board of directors, including our chairman, 
have historically been replaced by designees of the new administration.  Our board of directors may in turn replace some or all of the executive officers.  See “Item 3.D. 
Risk Factors—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 the interests of non-
controlling shareholders, including holders of ADSs”.

Board of Directors 

Our bylaws provide for a minimum of five and a maximum of 15 directors.  The members of our board of directors are elected at a general shareholders’ meeting to 
serve a renewable two-year term.  Pursuant to our bylaws, our employees have the option to elect one member of our board of directors.  Currently, our employees have not 
elected  a  director.   In  addition,  pursuant  to  Law  No. 6,404/1976  of  December  15,  1976,  as  amended  (“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 20.0% of the 
board of directors must be comprised of independent members.

Seven of the current members of our board of directors, Claudia Polto da Cunha, Alberto Goldman, Walter Tesch, Jerônimo Antunes, Reinaldo Guerreiro, Francisco 
Vídal Luna and Luis Eduardo de Assis were elected at the annual shareholders’ meeting held on April 30, 2014.  Sidnei Franco da Rocha was elected at the extraordinary 
shareholders’ meeting held on October 13, 2014, Benedito Pinto Ferreira Braga Junior was elected at the extraordinary shareholders’ meeting held on January 29, 2015 and 
Jerson  Kelman  was  elected  at  the  extraordinary  shareholders’  meeting  held  on  February  13,  2015. Board  members  Alberto  Goldman,  Claudia  Polto  da  Cunha,  Sidnei 
Franco da Rocha and Walter Tesch were not re-elected by the shareholders at the general meeting held on April 29, 2016 and will therefore leave the board on May 12, 
2016. The  tenure  of  all  the remaining directors  will  end  upon  the  election  of  members  for  the  new  term  at  the  annual  shareholders’  meeting  to  be  held  in  April,  2018. 
 Currently, we have four members 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, positions, dates of election and brief biographical descriptions of the current members of our board of directors: 

Director

Benedito Pinto Ferreira Braga Junior
Alberto Goldman (1)
Jerson Kelman 
Claudia Polto da Cunha (1)
Sidnei Franco da Rocha (1)
Walter Tesch (1)
Jerônimo Antunes 
Reinaldo Guerreiro 
Francisco Vidal Luna 
Luis Eduardo de Assis 

Position

Age
68
78
68
48
72
72
60
63
69
59

Chairman
Member
Member
Member
Member
Member
Independent Member*
Independent Member*
Independent Member*
Independent Member*

Date Elected
January 29, 2015
April 30, 2014
February 13, 2015
April 30, 2014
October 13, 2014
April 30, 2014
April 30, 2014
April 30, 2014
April 30, 2014
April 30, 2014

(1)        Board members not re-elected by the shareholders at the general meeting held on April 29, 2016 and will therefore leave the board on May 12 2016.

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

106

Benedito Pinto Ferreira Braga Junior.  Mr. Braga has been our chairman since January 2015.  He has also been the State Secretary of Sanitation and Water Resources 
since January 2015.  He holds a degree in Civil Engineering from the São Carlos School of Engineering at the University of São Paulo (Universidade de São Paulo - USP), 
with a Master’s degree in Hydrology from Stanford University, and in Hydraulics from the Polytechnic School at USP and also a Ph.D in Hydrological Resources from 
Stanford University.  He is a professor of Civil and Environmental Engineering at the Polytechnic School at USP and conducts technical and scientific studies in the field of 
water  resource  planning  and  management,  with  an  emphasis  on  conflict  resolution  with  multiple  goals.   He  is  also  president  of  the  World  Water  Council  (WWC), 
responsible for the World Water Forums at The Hague, Kyoto, Mexico and Istanbul, and he is President of the International Forum Committee.  Mr. Braga was President of 
the Intergovernmental Council of UNESCO International Hydrological Program from 2009 to 2010, President of the International Water Resources Association (IWRA) 
from 1998 to 2000 and a member of the board of the directors of the Brazilian National Water Agency (ANA) from its inception in 1999 to 2009.

Alberto  Goldman.   Mr. Goldman  has  been  a  member  of  our  board  of  directors  since  April 2011.   Mr. Goldman  holds  a  degree  in  Civil  Engineering  from  the 
Polytechnic School at the University of São Paulo (Universidade de São Paulo - USP).  Mr. Goldman was Vice Governor of São Paulo from January 2007 to March 2010 
and  Governor  of  São  Paulo  from  April 2010  to  December 2010.   He  was  a  member  of  our  board  of  directors  from  April 2009  to  March 2010.   He  was  also  the  State 
Secretary  of  Development  (currently,  the  Development,  Science  and  Technology  State  Department)  from  January 2007 to  February 2009  and  the  State  Deputy  for  two 
terms  and  Federal  Deputy  for  six  terms.   Mr. Goldman  was  the  president  of  the  Budget  Mixed  Committee  in  2000  and rapporteur  of  the  General  Telecommunications 
Law.  He was the Special Secretary of State of the Program Coordination in 1987 and of the Administration Coordination between 1988 and 1990.  Mr. Goldman was the 
Minister of Transportation from 1992 to 1994.

Jerson  Kelman.   Mr. Kelman  has  been  a  member  of  our  board  of  directors  since  February 2015  and  our  CEO  since  January  2015.   He  holds  a  degree  in  Civil 
Engineering with  a specialization in Hydraulics  from the School of Engineering at the Federal University of  Rio  de  Janeiro (Universidade Federal do Rio de  Janeiro - 
UFRJ), a Master’s degree in Civil Engineering from the Alberto Luiz Coimbra Institute of Graduate Studies and Research in Engineering at UFRJ and holds a Ph.D in 
Hydrology and Water Resources from Colorado State University.  Mr. Kelman has also worked as a Water Resources Professor at COPPE-UFRJ since 1974 and served as 
President  of  the  Brazilian  National  Water  Agency,  General  Director  of  the  Brazilian  National  Energy  Agency,  CEO  of  The  Light  Group  between  2010  and  2012, 
Intervener at Enersul, and a member of the Brazilian National Council for Energy Policy and Environment and Water Resources, as well as various boards, both in Brazil 
and abroad.

Claudia Polto da Cunha.  Ms. Cunha has been a member of our board of directors since April 2013.  She holds a degree in Law and a Master’s degree in Public Law 
from the Law School at the University of São Paulo (Universidade de São Paulo - USP).  She has been a State Attorney for the State of São Paulo since 2001, acting as the 
Corporate Matters Officer for the Paulista Partnership Company (Companhia Paulista de Parcerias) and the Executive Secretary at the State Council for Capital Protection 
(Conselho de Defesa dos Capitais do Estado), since 2006.  Ms. Cunha is a member of the board of directors at the Metropolitan Company for Urban Transport (Empresa 
Metropolitana  de  Transportes  Urbanos).   She  was  a  member  of  the  fiscal  committee  at  the  Company  for  Urban  and  Housing  Development  (Companhia  de 
Desenvolvimento Habitacional e Urbano), a member of the board of directors at the São Paulo Metropolitan Company (Companhia do Metropolitano de São Paulo), a 
member  of  the  fiscal  committee  at  Rede  Ferroviária  Federal,  as  well  as  a  member  of  the  board  of  trustees  at  the  Foundation  for  Consumor  Protection  (Fundação  de 
Proteção e Defesa do Consumidor).

Sidnei Franco da Rocha.  Mr. Rocha has been a member of our board of directors since October 2014.  He holds a degree in Law from Franca School of Law and is a 
graduate of Faculdade Francana with a degree in Philosophy, Sciences and Letters.  He worked as a reporter and was Press Secretary in Franca City Hall, the Councilor’s 
Office and the Mayor’s Office for three terms.  He also was President of São Paulo Aviation S.A. (Viação Aérea São Paulo S/A - VASP) and General Director of Rádio 
Hertz, where he is currently the President-Director.

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Walter  Tesch.   Mr. Tesch  has  been  a  member  of  our  board  of  directors  since  April 2011.   He  holds  a  degree  in  Sociology  from  the  University  of  Uruguay  and  a 
Master’s degree in Social  Sciences from the Pontifical Catholic University of Peru.  He was Coordinator of CRHi (Water Resources Coordination) for the State of  São 
Paulo from January 2011 to January 2015.  Mr. Tesch has worked in Peru, Venezuela and several Latin American countries.  Between 2005 and 2009, Mr. Tesch was the 
Head of the Administrative District of Parelheiros, which is equivalent to a quarter of the size of the São Paulo municipality and a water source region in the city of São 
Paulo.  He was the Deputy Executive Secretary from 2009 to 2010 of the Water Defense Operation (Defesa das Águas), an agreement between the São Paulo municipal and 
state governments.  Mr. Tesch has also authored articles and books on cooperatives and water sources.

Jerônimo Antunes.  Mr. Antunes has been an independent member of our board of directors and Coordinator of the Audit Committee since April 2008.  He holds a 
Bachelor’s degree in Business Administration and Accounting and both a Masters’ degrees and a doctorate in Controllership and Accounting from the Business, Economics 
and Accounting School at the University of São Paulo (Universidade de São Paulo - USP).  He has been a certified independent accountant and consultant in accountability 
and corporate finance since 1977.  He has been a professor of several MBA courses at USP since 1999, at the Foundation Institute of Accounting, Actuary and Financial 
Research  (Fundação  Instituto  de  Pesquisas  Contábeis,  Atuariais  e  Financeiras  -  FIPECAFI)  since  2000  and  at  the  Foundation  Institute  of  Administration  (Fundação 
Instituto de Administração - FIA) since 2006, among other institutions.  Mr. Antunes has acted as an independent auditor since 1977, an expert and specialist in accounting 
examinations since 2005, and President of the Audit Committee of Develop São Paulo (Desenvolve SP) since May 2013.  Since July 2015, he is the alternate independent 
member of the Board of Directors of Petróleo Brasileiro S.A., the independent member of the Board of Directors of Petrobras Distribuidora S.A. and a member of the Audit 
Committee and Compensation and Succession Committee of Petróleo Brasileiro S.A.  He is a member of IBGC and was an executive officer of the Institute of Accounting, 
Actuary and Financial Research (Instituto de Pesquisas Contábeis, Atuariais e Financeiras - IPECAFI), the Brazilian Institute of Independent Auditors (Instituto Brasileiro 
de Auditores Independentes – IBRACON) and the National Association of Executives in Finance, Administration and Accounting (Associação Nacional de Executivos de 
Finanças, Administração e Contabilidade – ANEFAC). 

Reinaldo  Guerreiro.   Mr. Guerreiro  has  been  an  independent  member  of  our  board  of  directors  since  January  2007.   He  holds  a  doctorate  in  Accounting  and 
Controllership,  a  Master’s  degree  in  Accounting  and  Controllership  and  a  Bachelor’s  degree  in  Accounting  Sciences,  all  of  them  from  the  Business,  Economics  and 
Accounting School at the University of São Paulo (Universidade de São Paulo - USP).  Currently, he is a professor and former Head of the Accounting Department at the
Business,  Economics  and  Accounting  School  at  USP.   He  is  a  researcher  at  the  National  Council  for  Scientific  Development  (Conselho  Nacional  de  Desenvolvimento 
Científico  –  CNPQ),  has  authored  books  in  management  accounting and  has  published  various  scientific  articles  in  domestic  and  international  magazines.   He  is  a 
specialized consultant in financial management.  Mr. Guerreiro has worked on various projects in the areas of 
financial management, costs, budget and IT in a variety of 
companies, such as Banco do Brasil, Caixa Econômica Federal, Previ and for the São Paulo Government - GESP. 

Francisco Vidal Luna.  Mr. Luna has been an independent  member of our board of directors since April 2013.  He has a doctorate in Economics from the Business, 
Economics and Accounting School at the University of São Paulo (Universidade de São Paulo - USP) and is a retired professor of the same university.  In the public sector, 
he has served as the Secretary of Planning for the state and city of São Paulo.  He has also worked at the Treasury Department for the State of São Paulo and the Federal 
Planning Bureau, among other roles.  Within the private sector, Mr. Luna was Chairman and President of Banco Inter American Express S.A.  At the governmental level, 
he served as a member of the advisory board of the Superintendency for the Development of the Northeast (Superentendência de Desenvolvimento do Nordeste – Sudene), a 
member of the board of directors of BNDES; superintendent of the Planning Institute of the Federal Planning Bureau, Special Secretary for Economic Affairs of the Federal 
Planning Bureau.  At the state level, Mr. Luna has also been the Chairman of the Advisory Board for the division of Economic Affairs of the Secretariat of Finance of the 
State of São Paulo and Executive Secretary of the Board of Financial Coordination of São Paulo.  Currently, Mr. Luna is a member of the board of directors and the audit 
committee of Develop São Paulo (Desenvolve SP), a member of the board of directors and the audit committee of Gafisa S.A., a member of the board of directors of Tenda 
S.A., Chairman of the board of directors of IDBRASIL and the Afro-Brazilian Museum, a member of the board of trustees of the Father Anchieta Foundation (Fundação 
Padre Anchieta) and an advisory board member of the Foundation of Medical Faculty (Fundação Faculdade de Medicina – FFM).

108

Luis Eduardo de Assis.  Mr. Assis has been an independent member of our Board of Directors since April 2014.  He holds a degree in Economics from the University 
of São Paulo (Universidade de São Paulo - USP), a Master's degree from the State University of Campinas (Universidade Estadual de Campinas – UNICAMP) and an 
MBA  from  Scuola  Superiore  Enrico  Mattei  in  Milan,  Italy.   He  was  director  of  Monetary  Policy  of  the  Central  Bank  of  Brazil  and  a  professor  in  the  Department  of 
Economics at the Pontificial University of São Paulo (Pontifícia Universidade Católica de São Paulo - PUC-SP) and at the Getulio Vargas Foundation (Fundação Getulio 
Vargas - FGV-SP).  He has developed his long career in the financial market, having held the positions of Chief Economist and Investment Director at Citibank, Chief 
Executive Officer at HSBC Investment Bank Brasil, Chief Operating Officer at HSBC Bank Brasil, Senior Strategic Planning Executive at the HSBC Group in London and 
Local Director for Latin America at HSBC.  Currently, he serves as the President of Fator Seguradora and writes an opinion column for the newspaper O Estado de São 
Paulo.

Board of Executive Officers 

Our board of executive officers is composed of six executive officers appointed by our board of directors for renewable two year terms.  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 bylaws.

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

Executive Officer

Jerson Kelman 
Manuelito Pereira Magalhães Junior 
Rui de Britto Álvares Affonso 
Paulo Massato Yoshimoto 
Luiz Paulo de Almeida Neto 
Edison Airoldi 

Age
68
48
58
63
59
59

Position

Chief Executive Officer
Corporate Management Officer
Chief Financial Officer and Investor Relations Officer
Metropolitan Region Officer
Regional Systems Officer
Technology, Enterprises and Environment Officer

Date Elected
June 22, 2015
June 22, 2015
June 22, 2015
June 22, 2015
June 22, 2015
June 22, 2015

Jerson Kelman.  See above “—Board of Directors”.

Manuelito  Pereira Magalhães Júnior.  Mr. Magalhães has been our  Corporate Management Officer since February 2011.  He holds a degree  in Economic Sciences 
from the State University of Campinas (Universidade Estadual de Campinas – UNICAMP).  Mr. Magalhães was a member of our board of directors from January 2007 to 
February 2011.  He was a parliamentary advisor in the Federal Senate.  From 2009 to 2011 he was the Chief  Executive Officer of Empresa Paulista de Planejamento 
Metropolitano – EMPLASA.  From 2006 to 2009 he was the Secretary of Planning of the Municipality of São Paulo and from 2005 to 2006 he was the Deputy Secretary of 
the Planning Secretariat.  From 2003 and 2004 he was Ombudsman of the National Supplementary Health Agency.  From 1998 to 2002, he was the special advisor of the 
Ministry of Health.  

Rui de Britto Álvares Affonso.  Mr. Affonso has been our Chief Financial Officer and Investor Relations Officer since July 2003.  Mr. Affonso holds a doctorate and a 
Master’s degree in Economics from the State University of Campinas (Universidade Estadual de Campinas – UNICAMP), and a degree in Economics from the University 
of São Paulo (Universidade de São Paulo - USP).  He has been a professor at UNICAMP since 1986, a professor at the Business, Economics and Accounting School of 
USP from 1983 to 1989, and a Director of Public Economy at the Foundation of Administrative Development (Fundação do Desenvolvimento Administrativo) from 1994 to 
2003.  He also represented Brazil on the board of the Forum of Federations, a non-governmental entity located in Canada, from 2000 to 2006.  Mr. Affonso has also held 
several positions in state government.

Paulo  Massato  Yoshimoto.   Mr. Yoshimoto  has  been  our  Metropolitan  Region  Officer  since  February 2004.   He  holds  a  degree  in  Civil  Engineering  from  the  Lins 
School of Engineering (Escola de Engenharia de Lins).  Mr. Yoshimoto joined us in 1983, and has held the positions of executive assistant to the operations office and 
head  of  the  water  production  and  maintenance  and  metropolitan  planning  departments.   Mr. Yoshimoto  has  also  held  the  position  of  senior  planning  professional  at 
Empresa Metropolitana de Planejamento from 1975 to 1983.

Luiz  Paulo  de  Almeida  Neto.   Mr. Almeida  Neto  has  been  our  Regional  Systems  officer  since  January 2011.   He  holds  a  degree  in  Civil  Engineering  from  the 
Polytechnic School at the University of São Paulo (Universidade de São Paulo - USP), a degree in Business Administration from the Votuporanga Educational Foundation 
(Fundação  Educacional  Votuporanga/SP)  and  a  post-graduate  degree  in  Sanitary  Engineering  from  the  School  of  Public  Health  at  USP.   Mr. Almeida  joined  us  in 
1979 and  has  worked  with  us  as  head  of  the  Baixo  Tietê  Business  Unit  responsible  for  the  management  of  areas  located  in  the  hydrographic  basins  of  Baixo  Tietê, 
Tietê-Batalha, São José dos Dourados and Turvo Grande.  Mr. Almeida Neto has authored several articles.

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Edison Airoldi.  Mr Airoldi has been our Technology, Enterprises and Environment Officer since June 2015.  He holds a degree in Mechanical Engineering from the 
Polytechnic School at the University of São Paulo (Universidade de São Paulo - USP) and a Master’s degree in Business Administration from the Foundation Institute of 
Administration (Fundação Instituto de Administração - FIA).  Mr. Airoldi joined us in 1981 and has worked with us as the Head of the Northern Region business unit, the 
Water Production business unit and the Technical and Integrated Planning Unit.

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  committee  and  our  executive  officers.   According  to  Instruction  No. 480  issued  by  CVM,  we  have  to  periodically  disclose  certain 
information on the aggregate compensation such as averages and fringe benefits.

In 2015, 2014 and 2013, the aggregate compensation, including benefits in kind granted that we paid to members of our board of directors, board of executive officers 

and fiscal committee for services in all capacities were R$4.6 million, R$4.3 million and R$4.2 million, respectively.

The tables below sets forth the breakdown of the total compensation received by our directors and members of our board of executive officers and fiscal committee and 

other data related to their compensation for the periods indicated:

2015

Year ended December 31,
2014
(in thousands of R$, except where indicated otherwise)

2013

Total compensation per administrative body 
Board of directors
Board of executive officers
Fiscal committee
Total amount of compensation
Number of members (in individuals)
Board of directors
Board of executive officers
Fiscal committee
Fixed annual compensation
Salary 
Board of directors
Board of executive officers
Fiscal committee
Direct and indirect benefits
Board of directors
Board of executive officers
Fiscal committee
Variable compensation
Bonus 
Board of directors
Board of executive officers
Fiscal committee
Maximum amount of compensation 
Board of directors
Board of executive officers
Fiscal committee
Minimum amount of compensation 
Board of directors
Board of executive officers
Fiscal committee
Average amount of compensation 
Board of directors
Board of executive officers
Fiscal committee

1,139
3,135
324
4,598

10
6
5

878
1,781
252

262
833
72

-
521
-

157
581
66

96
494
64

114
489
60

1,051
2,899
303
4,253

9
6
5

802
1,654
232

250
741
71

-
504
-

157
552
64

96
481
64

117
483
61

1,026
2,929
258
4,213

9
6
5

788
1,673
198

239
690
60

-
566
-

157
530
64

96
471
17

111
469
57

110

Profit Sharing and Pension Plans

We have established a pension and benefit fund (Fundação SABESP de Seguridade Social), or SABESPREV, to provide our employees with retirement and pension 
benefits.  This pension plan provides benefit payments to former employees and their families.  Both we and our employees make contributions to the pension plan under 
SABESPREV, which we called as plan G1. Our total contributions to the pension plan totaled R$23.7 million, R$23.0 million and R$18.4 million in 2015, 2014 and 2013, 
respectively.   In  addition  to  the  pension  plan  under  SABESPREV,  we  are  also  required  to  pay  supplemental  pension  payments  relating  to  the  employment  contract  of 
certain  employees prior  to  the creation of SABESPREV,  which  we  called as  plan  G0. Based on independent actuarial reports, as  of December 31, 2015,  our  obligation 
under these both plans (G0 and G1) totaled R$2,832.2 million.  For further information on our pension plans see Note 20 to our financial statements as of December 31, 
2015 and 2014 and for the years ended December 31, 2015, 2014 and 2013 included elsewhere in this annual report.

Beginning  in  2008,  payments  under  the  profit-sharing  plan  were  based  both  on  general  goals  that  evaluate  us  as  a  whole  and  on  other  goals  that  evaluate  the 

performance our different business units.  Payments are proportionally reduced annually if the goals are not completely achieved.

We recorded profit-sharing expenses of R$76.6 million, R$72.9 million and R$68.5 million in 2015, 2014 and 2013, respectively.  We do not have a stock-option plan 

for our employees.

B. Board Practices

The members of our board of directors are elected at an annual shareholders’ meeting to serve a renewable two-year term.  Our next annual shareholders’ meeting will 
be held on April, 2017.  Our board of directors ordinarily meets once a month or when called by a majority of the directors or the chairman.  See “Item 6.A. Directors and 
Senior Management—Board of Directors”.

Our board of executive officers is composed of six executive officers appointed by our board of directors for a renewable two-year term.  Although our bylaws provide 
that  the  meetings  of  our  board  of  executive  officers  shall  be  held  twice  a  month,  meetings  are  held  on  a  weekly  basis.   See  “Item 6.A.  Directors  and  Senior 
Management—Board of Executive Officers”.

None  of  our  directors  and/or  executive  officers  is  a  party  to  an  employment  contract  providing  for  benefits  upon  termination  of  employment.   Those  directors  and 
officers  who  are  also  our  employees  will  remain  as  our  employees  after  their  tenure  as  directors  and/or  officers,  in  this  case,  maintaining  all  benefits  granted  to  our 
employees.

Fiscal Committee (Conselho Fiscal) 

Our fiscal committee, which is established on a permanent basis, consists of a minimum of three and a maximum of five members and generally meets once a month.  
Our fiscal committee currently consists of five members and five alternates.  Furthermore, each member has its respective alternate.  Eight of the current members of our 
fiscal committee (Humberto Macedo Puccinelli, Rui Brasil Assis, Massao Fabio Oya, Joaldir Reynaldo Machado, Tomás Bruginski de Paula, José Rubens Gozzo Pereira, 
Maria  Elvira  Lopes  Gimenez  and  Enio  Marrano  Lopes)  were  elected  in  the  shareholders’  meeting  held  on  April 30,  2015.   Sandra  Maria  Giannella  was  elected  in  the 
Extraordinary shareholders’ meeting held on November 10, 2015 and José Alexandre Pereira de Araújo was elected in the Extraordinary shareholders’ meeting held on 
January 29, 2016. The ten members of the fiscal council had their tenure renewed in the annual general shareholders’ meeting held on April 29, 2016 until the next annual 
general shareholders’ meeting to be held in April 2017. The primary responsibility of the fiscal committee, 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 names, ages, position, date of election and brief biographical descriptions of the current and alternate members of our fiscal committee:

Fiscal Committee Members

Humberto Macedo Puccinelli 
Joaldir Reynaldo Machado
José Alexandre Pereira de Araújo
Rui Brasil Assis 
Massao Fabio Oya 
Tomás Bruginski de Paula 
José Rubens Gozzo Pereira 
Enio Marrano Lopes 
Sandra Maria Giannella
Maria Elvira Lopes Gimenez

Age
58
67
44
61
34
55
68
54
59
45

Position
Member
Member
Member
Member
Member
Alternate
Alternate
Alternate
Alternate
Alternate

111

Date Elected
April 30, 2015
April 30, 2015
January 29, 2016
April 30, 2015
April 30, 2015
April 30, 2015
April 30, 2015
April 30, 2015
November 10, 2015
April 30, 2015

Humberto  Macedo  Puccinelli.   Mr. Puccinelli  has  been  a  member  of  our  fiscal  committee  since  April 2011.   Mr. Puccinelli  holds  a  degree  in  Economics  from  the 
Pontificial University of São Paulo (Pontifícia Universidade Católica de São Paulo - PUC-SP).  He worked at the Department of Planning from 1985 to 1995, at the Health 
State Department as Assistant Secretary from 1995 to 1996, at the State Treasury from 1996 to 2002, and at the Planning Department as Assistant Secretary in 2003.  Since 
January 2004 he has been the Technical Assistant of the State Treasury.

Joaldir  Reynaldo  Machado.   Mr.  Machado  has  been  a  member  of  our  fiscal  committee  since  April  2015.   He  holds  a  degree  in  Economics  from  the  School  of 
Economics, Administration and Accounting of the University of São Paulo (Faculdade de Economia, Administração e Contabilidade da Universidade de São Paulo – FEA 
USP).  Currently, he is the Chief of Staff of the Sanitation and Water Resources Secretariat State of São Paulo.  He worked as a Chief of Staff of the Economy and Planning 
Secretariat  State  of  São  Paulo  (2007-2013),  Chief  of  the  Economy  and  Planning  Secretariat  State  of  São  Paulo  (2003),  Coordinator  of  Planning  and  Evaluation  of  the 
Economy and Planning Secretariat State of São Paulo (1998-2003), Advisor of the EMPLASA Executive Board (1992-1994), executive of the Finance Departament of our 
Company (1991-1992), Chief of Staff of Environment State Secretariat State of São Paulo (1987-1991) and has also worked for SEADE Foundation (1979-1987).

José Alexandre Pereira de Araújo. Mr. Pereira de Araújo has been a member of our fiscal committee since January 2016.  He holds a business administration degree 
from  the  Pontifical  University  of  Campinas  (Pontifícia  Universidade  Católica  de  Campinas  -  PUC-Campinas)  and  specializations  in  Business  Management  and  Public 
Management from the State University of Campinas (Universidade Estadual de Campinas – UNICAMP) and Foundation of Sociology and Politics (Fundação Escola de 
Sociologia e Política – FESP).  He was the Government Manager of the State of São Paulo’s Superintendence of the Banco do Brasil between 1998 and 2002,  the Chief of 
Staff of the Center for Studies and Research of the Municipal Administration – CEPAM, between 2003 and 2005, the Chief of Staff of the Secretariat of City Management 
of the city of São Paulo between 2005 and 2007, the Executive Secretary of the Council of Real Estate Patrimony of the Mayor’s Office of São Paulo between 2005 and 
2007, the Chief of Staff of Public Management of the government of the state of São Paulo between 2007 and 2008, the Director of the Poupatempo between 2008 and 
2010, and the Director of Business Management of the Official Press of the government of the state of São Paulo between 2011 and 2014.  Currently, he is the Adjunct 
Secretary of the Planning and Management Secretariat of the government of the state of São Paulo.  Besides SABESP, he has not served in any administrative position in 
any other publicly traded company.

Rui Brasil Assis. Mr. Assis has been a member of our fiscal committee since April 2014.  He holds a degree in Civil Engineering from Escola de Engenharia de Lins.  
In  the  public  sector,  he  worked  for  Lins  City  Hall  from  1980  to  1983,  the  Water  and  Electricity  Department  from  1983  to  1999,  the  Water  Resources,  Sanitation  and 
Construction Secretariat from 1999 to 2003, the Energy, Water Resources and Sanitation Secretariat from 2003 to 2007, the Energy Secretariat from 2007 to 2010 and the 
Sanitation  and  Water  Resources  Secretariat  since  2011.   Mr. Assis  was  a  member  of  the  deliberative  council  of  the  Foundation  Agency  of  Alto  Tietê  Water  Basis 
(Fundação Agência de Bacia Hidrográfica do Alto Tietê) from 2006 to 2014, the fiscal committee of EMAE from 2007 to 2011, board of directors of the Association for 
Water Management  of the Paraíba  do Sul River Basin (AGEVAP)  from 2003 to  2006  and the  board  of directors  of the Companhia Ambiental do Estado  de  São Paulo 
(CETESB) from 1999 to 2007.

Massao Fabio Oya.  Mr. Oya has been a member of our fiscal committee since April 2015.  He holds a degree in Accounting from the Father Anchieta Foundation 
(Fundação Padre Anchieta) and a Master’s degree in Financial Management and Controllership from the Father Anchieta Institute.  He is a partner of Solução Governança 
Corporativa e Consultoria Ltda., a company which provides business advisory services in the corporate, accounting 

112

and corporate governance areas.  He is a sitting member of Companhia Paranaense de Energia – COPEL, Pettenati Indústria Têxtil S.A., Companhia Providência Ind. e 
Com. S.A., Cristal Pigmentos do Brasil S.A., WLM Indústria e Comércio S.A. and Bicicletas Monark S.A.  He was a sitting member of the Fiscal Councils of Companhia 
de Saneamento do Parana – Sanepar, between 2011 and 2012, TIM Participações S.A. between 2011 and 2012, Banco do Estado do Rio Grande do Sul S.A. – Banrisul, in 
2011, Wetzel S.A., between 2011 and 2012, Bardella S.A. – Indústrias Mecânicas between, 2013 and 2015, and General Shopping S.A., between 2012 and 2013.

Tomás Bruginski de Paula.  Mr. de Paula has been an alternate member of our fiscal committee since April 2006.  He holds a Master’s degree in Economics from the 
State  University  of  Campinas  (Universidade  Estadual  de  Campinas  –  UNICAMP).   He  has  been  a  professor  at  the  Economics  Department  of  Pontifícia  Universidade 
Católica – PUC since 1986.  He has been an executive officer at the São Paulo Company for Partnerships (Companhia Paulista de Parcerias) since 2004 and the São Paulo 
Securities Company (Companhia Paulista de Securitização) since 2009.  Mr. de Paula has worked as a consultant for several entities, including the Economic Committee 
for  Latin  America  (CEPAL),  the  United  Nations  Development  Program  (PNUD),  the  Brazilian  Institute  of  Municipal  Administration  (IBAM),  the  Brazilian  School  of 
Public and Business Administration at the Getulio Vargas Foundation (EBAPE/FGV), the State System Data Analysis Foundation (SEADE), and the Brazilian Electricity 
Agency in the infrastructure and public policy financing areas.  He is also a member of the fiscal committee of Develop São Paulo (DesenvolveSP) and a member of the 
board of directors of the São Paulo State Highway Company (Desenvolvimento Rodoviária S.A. - DERSA).  Mr. de Paula was also a member of the fiscal committee of the 
São Paulo Company of Electric Power Transmission (Companhia de Transmissão de Energia Elétrica Paulista – CTEEP).

José Rubens Gozzo Pereira.  Mr. Pereira has been an alternate member of our fiscal committee since April 2010.  He holds a degree in Economics from Mackenzie 
University and a graduate degree from the Getulio Vargas Foundation and attended international studies extension programs at the Universities of London and Paris.  He 
has  been  responsible  for  the  Funding  Department  of  the  Finance  Secretariat  since  1989.   Mr. Pereira  held  positions  in  the  public  sector  in  the  DAEE,  where  he  was 
responsible for the Budget and Financing Department.  He was an executive officer at Traffic Engineering Company of São Paulo (Companhia de Engenharia de Tráfego – 
CET) and in the International Cooperation Department at the Energy Company of São Paulo (Companhia Energética de São Paulo –CESP).  

Enio  Marrano  Lopes.   Mr. Lopes  has  been  an  alternate  member  of  our  fiscal  committee  since  April  2014.   He  holds  a  degree  in  Business  Administration  from 
Faculdades Oswaldo Cruz.  Currently, Mr. Lopes is Budget Assistant Coordinator for the Secretariat of Planning and Management (Secretaria de Planejamento e Gestão)of 
the  State of São Paulo and a member of the Fiscal Committee of the CDHU.  He also served in various positions for the Secretariat of Planning and Management of the 
State of São Paulo and was a member of the Fiscal Committe of the São Paulo State Highway Company (Desenvolvimento Rodoviária S.A. - DERSA), the Metropolitan 
Train Authority of São Paulo (CPTM) and the Energy Company of São Paulo (Companhia Energética de São Paulo –CESP).

Sandra Maria Giannella.  Ms. Gianella has been a member of our fiscal committee since November 2015. She holds a degree in Economics from the Armando Álvares 
Penteado  Foundation  (Fundação  Armando  Álvares  Penteado  –  FAAP),  in  Business  Administration  from  the  Mackenzie  Presbyterian  University  (Universidade 
Presbiteriana Mackenzie) and a specialization in Financial Management from the Getulio Vargas Foundation (Fundação Getulio Vargas - FGV-SP).  She has been a public 
employee  of  the  state  of  São  Paulo  since  1978  and  has  held  several  leadership  positions  throughout  her  career.  Currently,  she  coordinates  the  Advisory  of  Business 
Management of the government of the state of São Paulo and is the Executive Secretrary of the Management Committee of the State and City of São Paulo, the committee 
responsible for the management of the basic sanitation service provision contract between SABESP and the city of São Paulo.  Since 1991, she has been the fiscal counselor 
of several controlled by the state of São Paulo, such as the Companhia do Metropolitano de São Paulo – Metrô, Desenvolvimento Rodoviário S.A. – DERSA, Companhia 
Energética de São Paulo – CESP, Elektro, Companhia Paulista de Parcerias – CPP, and us.

Maria  Elvira  Lopes  Gimenez.   Mrs.  Gimenez  has  been  an  alternate  member  of  our  fiscal  committee  since  April  2015.   She  holds  a  degree  in  Economics  from  the 
Santana  University  of  São  Paulo  (Faculdade  Santana  São  Paulo)  and  currently  holds  the  position  of  financial  assistant  of  the  Board  of  Executive  Officers  at  Solução 
Governança Corporativa e Consultoria Ltda.  She is also alternate member of the Fiscal Council at Companhia Providência Ind. e Com. S.A., WLM Indústria e Comércio 
S.A. and Cristal Pigmentos do Brasil S.A.  Mrs. Gimenez was the financial assistant of the Board of Executive Officers at Guardyannet Serviços de Traduções Ltda.

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Audit Committee

Our  bylaws  provide  for  an  audit  committee  to  be  comprised  of  three  board  members,  who  will  cumulatively  comply  with  the  requirements  of  (i) independence, 
(ii) technical expertise, and (iii) identifying and complying with applicable exemptions in accordance with the United States Securities and Exchange Commission, or the 
SEC, and New York Stock Exchange, or NYSE, rules.  Our Board of Directors determined that Jerônimo Antunes qualifies as a financial expert under the SEC rules.  The 
members are appointed by 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  our 
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.  All of our 
Audit Committee members are independent.

The following are the names, positions and dates of election of the members of our audit committee: 

Director

Jerônimo Antunes 
Reinaldo Guerreiro 
Francisco Vidal Luna 

Regulatory Affairs Committee

Position

Coordinator and Financial Expert
Member
Member

Date Elected
May 14, 2014
May 14, 2014
May 14, 2014

Our  bylaws  provide  for  a  regulatory  issues  committee  to  be  comprised  of  our  Chief  Executive  Officer,  Chief  Financial  Officer  and  Investor  Relations  Officer, 
Metropolitan Officer, and Regional System Officer.  The regulatory affairs committee is responsible for defining our regulatory directives, strategies and guidelines and 
coordinating our regulatory affairs department, under the directives of our board of directors.

The  Chief  Executive  Officer  acts  as  chairman  of  our  regulatory  affairs  committee  and  is  responsible  for  proposing  its  internal  regulations  to  be  approved  by  the 

committee.  Pursuant to our bylaws, the head of regulation shall be the executive secretary of the committee.

Under our bylaws, the resolutions of our regulatory affairs committee shall be binding and our executive board shall be entitled to implement them in the scope of its 
jurisdiction.   Meetings of our regulatory  affairs committee are held at  least once a month, if ordinary, and  when  extraordinary can be called by  any of  our committee’s 
members.  In 2015, no meetings of the Regulatory Affairs Committee were conducted due to the redirectioning of efforts of our Board of Executive Officers and other 
members of our Company in the efforts to mitigate the effects of the water crisis. 

C. Employees

As of December 31, 2015, we had 14,223 full-time employees.  In 2015, we had an average of 949 interns and 530 apprentices (aprendizes), as defined by Federal Law 

No. 10,097/2000, dated December 19, 2000, as amended.

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:

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 
Total number of employees

2015

As of December 31,
2014

2013

9,489
2,211
440
2,083

1,377
6,612
6,234
14,223

9,788
2,381
466
2,118

1,481
6,715
6,557
14,753

9,983 
2,443
455
2,134

1,510
6,856
6,649
15,015

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The average tenure of our employees is approximately 18 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 75% of all our employees are members of unions.  The five main unions that represent our employees are (i) the Union of Workers in Water, Sewage 
and  Environment  of  the  State  of  São  Paulo  -  SINTAEMA,  (ii) workers  union  of  Santos  Urban  Industries,  Baixada  Santista  region,  South  Coast  and  Vale 
Ribeira - SINTIUS, (iii) the Union of Engineers of the State of São Paulo - SEESP, (iv) the Union of Attorneys of the State of São Paulo - SASP and (v) the Union of 
Industrial Technicians of the State of São Paulo – SINTEC.  

In 2013, the collective bargaining agreement resulted in:  (i) a salary increase of 8% (which corresponds to the inflation adjustment for the period plus a real gain of 
2.5%), (ii) the establishment of an employment guarantee for 98% of our employees, (iii) an increase of 13.6% in meal vouchers (vale refeição), and (iv) an increase of 
21.5% in food allowance and an additional of 15% for employees who work on flexible work shifts, among other things.

The collective bargaining agreement signed in 2014 resulted in:  (i) a salary increase of 5.2% (which corresponds to the inflation adjustment for the period); (ii) the 
establishment of an employment guarantee for 98% of our employees; (iii) an increase of 8% in meal vouchers; (iv) an increase of 5.2% in food allowance; and (v) the 
termination  of  Regional  Salary  for  which  Sabesp  adopted  separate  pay  scales  for  Region  1  –  São  Paulo  metropolitan  region,  Vale  do  Paraíba,  Baixada  Santista, 
Capivari/Jundiaí  and  Litoral  Norte  –  and  Region  2  –  other  interior  and  coast  cities.  Region  2  employees  received  salaries  at  a  ratio  of  80%  of  the  salaries  of  Region  1 
employees.  As a result of the collective agreement of 2014, equalization in salaries was conceded for the two regions in two stages:  first, on May 1, 2014 with a salary 
increase from 80% to 90% and second, on May 1, 2015, from 90% to 100%.

The  collective  bargaining  agreement  signed  in  2015  resulted in:  (i)  a  salary  increase  of  8.29%  (which corresponds  to  the  inflation  adjustment  for  the  period  plus  a 
1.01% real adjustment); (ii) the readjustment of 10% in the values of the meal vouchers and monthly food stipend; (iii) a readjustment of 8.29% for the remaining benefits; 
(iv) maintenance of the clause that guarantees the employment of 98% of our employees according to the 2014/2015 collective bargaining agreement; and (iv) maintenance, 
in an exceptional character, of the Christmas food stipend.

We experienced a two day strike in 2013, which did not interrupt the essential services that we provide.  In 2015, 2014 and 2012 there were no strikes.  Under Brazilian 

law, our non-administrative employees are considered “essential employees” and, therefore, are limited in their right to strike.

D. Share Ownership

As of April 30, 2016, none of our directors and executive officers owned any of our common shares.  See “Item 7.A. Major Shareholder” for more information.  

ITEM 7.

MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS

A. Major Shareholder

On April 22, 2013 our shareholders approved a stock split, following which each common share represented three new common shares.  Since then, our outstanding 
capital  stock  consists  of  683,509,869  common  shares,  without  par  value.   Under  state  laws,  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. 

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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 April 30, 2016: 

State of São Paulo
Directors and executive officers of Sabesp
Others

(1)

Total

Common shares

Shares

%

343,524,285
-
339,985,584

683,509,869

50.3%
-
49.7%

100.0%

(1) As of April 30, 2016, 29.9% of our outstanding common shares were held by 4,211 registered shareholders in Brazil.

As of April 30, 2016, 19.8% of our outstanding common shares were held in the United States, in the form of ADSs.  According to the ADS depositary’s records, 

which contain information regarding the ownership of our ADSs, there were, in March 2016, 34 record holders of ADSs in the United States.

B. Related Party Transactions

Transactions with the State of São Paulo

We have entered into extensive transactions with the State, which is our controlling shareholder, and we expect to continue to do so.  The State is our largest customer.  
It owns some of the facilities that 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  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 
reservoirs.

Rendering Services

We provide water and sewage services to the federal government, state and municipal governments and government entities in the ordinary course of our business.  
Gross  revenue  from  sales  to  the  State,  including  State  entities,  totaled  R$357.5  million  in  2015,  R$412.0  million  in  2014  and  R$449.1  million  in  2013.   Our  accounts 
receivable from the State for water supply and sewage services totaled R$66.3 million and R$50.8 million, as of December 31, 2015 and 2014, respectively.  In addition, as 
required by law, we invest our cash and cash equivalents with government financial institutions.

Payment of Pensions

Pursuant to a law enacted by the State, certain former employees of some State owned companies that provided services to us in the past and later merged to form our 
Company acquired a legal right to receive supplemental pension benefit payments.  These 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  2015,  2014  and  2013,  we  made  payments  to  former  employees  of  R$158.9 
million, R$149.9 million and R$140.1 million, respectively, in respect of Plan G0.  The State made reimbursements in 2015, 2014 and 2013 in the amounts of R$121.7 
million, R$112.5 million and R$111.0 million, respectively.

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.

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On December 11, 2001, we entered into an agreement with the State and the DAEE.  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 that 
was  not  offset  in  accordance  with  the  September 1997  memorandum  of  understanding,  in  the  total  amount  of  R$358.2 million.   This  amount  was 
renegotiated and included in the second amendment to this agreement discussed below; 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  our  Company;  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, in the total amount of R$320.6 million.  This amount was renegotiated and included in the third amendment to 
this agreement discussed below.

The agreement provided that the DAEE would transfer to us ownership of the Taiaçupeba, Jundiaí, Biritiba, Paraitinga and Ponte Nova reservoirs (herein after referred 

to as “the reservoirs”), which form 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 2002, a State-owned construction company (Companhia Paulista de Obras e Serviços), or the CPOS, on behalf of the State, 
and an independent appraisal firm (Engenharia de Avaliações), or the 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.  This amount was updated until September 2008 according to IPCA index and amounted to R$696.3 million.

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 (12 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 DAEE 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 of first instance handed down its judgment on the civil public action and declared the agreement between us, DAEE and State of São 
Paulo null and void.  This decision was suspended by us, and the State treasury and DAEE appealed the decision.  On August 23, 2010, the appeal was denied.  We have 
petitioned for clarification of the appeal court’s decision and will seek to take the case to the Supreme Court.  The effects of the appeal court’s decision will be suspended 
until the end of the legal process.  We have assessed the risk of loss as probable, which would prohibit the transfer of the reservoirs in payment of the accounts receivable 
due from the State.

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 are formalized.  As discussed above, the transfer of these reservoirs is currently being disputed and we are not certain 
whether the transfer will be legally permitted.  Under the December 2001 agreement, the first payment was to be made in July 2002.

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On March 22, 2004, we and the State entered into a first amendment to the December 2001 agreement.  Under this amendment, the State acknowledged that it owed 
R$581.8 million  to  us  relating  to  unpaid  accounts  receivable  from  the  State  until  February 29,  2004,  and  we  acknowledged  that  we  owed  an  aggregate  amount  of 
R$518.7 million to the State as dividends, in the form of interest on shareholders’ equity.  Accordingly, we and the State agreed to offset each other’s credit up to the limit 
of R$404.9 million, which was an amount adjusted up to February 2004.  The outstanding balance of R$176.9 million (as of February 29, 2004) of the State’s consolidated 
debt  would  be  paid  in  consecutive  monthly  installments  from  May 2005  until  April 2009.   These  installments  would  be  indexed  according  to  the  IPCA  index,  plus  an 
interest rate of 0.5% per month.  Upon the execution of the first amendment, part of the debt that the State owed to us for the use of water and sewage services through 
February 2004 was offset by the debt that we owed to the State as dividends, in the form of interest on shareholders’ equity.  The outstanding balance of R$113.8 million as 
dividends in the form of interest on shareholders’ equity that we owed to the State was netted against accounts overdue after February 2004.  The first amendment did not 
amend the provisions of the December 2001 agreement regarding the 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.

On  December 28,  2007,  we  and  the  State  entered  into  a  second  amendment  to  the  December 2001  agreement,  pursuant  to  which  the  State  agreed  to  pay  (i) the 
outstanding  balance  under  the  first  amendment,  in  the  amount  of  R$133.7 million  (as  of  November 30,  2007),  in  60  consecutive  monthly  installments,  beginning  on 
January 2, 2008, and (ii) the amount of R$236.1 million relating to part of the accounts overdue and unpaid from March 2004 through October 2007 regarding the provision 
of water supply and sewage collection services.  As part of this amendment, we agreed to pay during the period from January through March 2008 the outstanding balance 
of dividends in the amount of R$400.8 million, in the form of interest on shareholders’ equity, due from March 2004 through December 2006.  We paid these amounts as 
agreed.  Under the second amendment, dividends payable by us are no longer required to be applied to offset accounts receivable from the State, and as a result, we are 
currently unable to determine the amount, if any, of the declared dividends that the State will apply to current and future accounts receivable owed to us by the State or its 
entities.  In addition, pursuant to the second amendment, we and the State agreed on complying with certain mutual obligations relating (i) to the improvement of payment 
processes and budget management procedures; (ii) the rationalization of the use of water and the volume of water and sewage bills under the responsibility of the State; 
(iii) the  recording  of  government  entities  with  accounts  overdue  in  a  delinquency  system  or  reference  file;  and  (iv) the  possibility  of  interrupting  water  supply  to  these 
entities in case of non-payment of water and sewage bills.  Finally, this second amendment did not amend the provisions of the December 2001 agreement regarding the 
supplemental retirement and pension benefits we paid from March 1986 through November 2001 on behalf of the State to former employees of the State-owned companies 
that merged to form our Company.

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 declared dividends that the State will apply to 
current  and  future  accounts  receivable  owed  to  us  by  the  State  or  its  entities.   The  second  amendment  no  longer  requires  that  dividends  be  applied  to  offset  accounts 
receivable from the State.

On March 26, 2008, we entered into a commitment agreement (termo de compromisso) with the State with the purpose of finding an alternate solution to the deadlock 
related to the amount owed by the State to us in connection with the 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 our  Company.   In  this  agreement,  we and State  committed  to  hiring specialized 
companies to carry out new  valuations of the amounts owed to us by the State  and of the reservoirs.  An independent consulting firm, FIPECAFI, has been retained to 
resolve  the  disagreement  and  validate  the  amount  we  paid  from  March 1986  through  November 2001  on  behalf  of  the  State  to  former  employees  of  the  State-owned 
companies that merged to form our Company, which the State has not yet agreed to reimburse us hereinafter referred to as the “Disputed Reimbursement Amount”.  In 
addition, FIPECAFI performed, together with another independent consulting firm, a new evaluation of the reservoirs that might be transferred to us as amortization of the 
reimbursement payable by the State to us.

On  November 17,  2008,  we,  the  State  and  DAEE  entered  into  a  third  amendment  to  the  December 2001 agreement,  pursuant  to  which  the  State  recognized  a  debt 
balance payable to us totaling R$915.3 million, hereinafter referred to as the “Undisputed Reimbursement Amount,” as adjusted based on the IPCA.  We accepted on a 
provisional basis the reservoirs as part of the payment of the Undisputed Reimbursement Amount and offered to the State a provisional settlement, recognizing a credit 
totaling  R$696.3 million,  corresponding  to  the  value  of  the  reservoirs  located  in  the  Alto  Tietê  region.   We  and  the  State  have  agreed  that  the  final  offset  will  only  be 
recorded when the effective transfer of the reservoirs is recorded at the Real Estate Registry.  The outstanding balance of Undisputed Reimbursement Amount, amounting 
to R$219.0 million, is being paid by the State in 114 consecutive monthly installments, as adjusted by the annual IPCA variation, plus interest accruing at the annual rate of 
6.0%.  The first installment was paid in November 2008.

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On March 18, 2015, we, the State and DAEE, with the intervention of the Department of Sanitation and Water Resources, executed a term of agreement, in the amount 
of R$1,012.3 million, of which R$696.3 million refers to the principal amount and R$316.0 million refers to the monetary adjustment of the principal through February 
2015.

The principal amount will be paid in 180 installments, as follows:





The  first  24  installments  was  settled  by  an  immediate  transfer  of  2,221,000  preferred  shares  issued  by  the  São  Paulo  Company  of  Electric  Power 
Transmission (Companhia de Transmissão de Energia Elétrica Paulista – CTEEP), totaling R$87.2 million, based on the share closing price as of March 17, 
2015; and

The amount of R$609.1 million will be adjusted by the IPCA until the date when the payments start and will be paid in cash in 156 monthly installments 
beginning on April 5, 2017.  When payments begin, installments will be adjusted by IPCA plus simple interest of 0.5% per month.

Given that the lawsuit regarding the transfer of the reservoirs is pending final and unappealable court decision, the agreement also provides for the following:





If transfer is possible and the reservoirs are effectively transferred to us and registered at the authority’s office, we will reimburse to the State the amounts 
paid in replacement of the reservoirs (principal amount) in 60 monthly installments adjusted by IPCA until the payment date of each installment; and

If the transfer of the reservoirs is not possible, the State will pay us, in addition to the principal amount, the inflation adjustment credit in the amount of 
R$316.0 million in 60 installments, following payment of the principal amount.  The amount will be adjusted based on IPCA at the start date of payments 
and, as of that date, IPCA will be incurred plus 0.5% simple interest rate/month over the amount of each installment.

In addition to the Undisputed Reimbursement Amount, there is an outstanding balance relating to the Disputed Reimbursement Amount. As of December 31, 2015, the 
Disputed Reimbursement Amount, amounted to R$855.1 million, but due to the uncertainty regarding the recovery of the amount our management decided not to recognize 
the reimbursements.  See Note 10 to our financial statements as of December 31, 2015 and 2014 and for the year ended December 31, 2015, 2014 and 2013 regarding the 
Disputed Reimbursement Amount.  We and the State have agreed that the dispute relating to the Disputed Reimbursement Amount will not prevent us from carrying out the 
commitments made in the December 2001 agreement.

In addition, the third amendment to the December 2001 agreement provides for the regularization of the monthly flow of benefits.  While we are liable for the monthly 
flow of benefits to the former employees of the  state-owned companies that merged to form our Company, the State shall reimburse us based on criteria identical to those 
applied when determining the Undisputed Reimbursement Amount.  Should there be no preventive court decision, the State will assume the flow of monthly payment of 
benefits portion deemed as undisputed.

Finally, the third amendment to the December 2001 agreement established that the Public Attorney’s Office of the State of São Paulo, or the Public Attorney’s Office, 
would issue a revised interpretation of the calculation and eligibility criteria applicable to the Disputed Reimbursement Amount.  At that time, we believed that the Public 
Attorney’s  Office  would  issue  a  revised  interpretation  which  would  have  helped  us  bring  the  negotiations  with  the  State  to  a  conclusion.   However,  contrary  to  our 
expectations,  the  Public  Attorney’s  Office  interpretation  of  the  calculation  and  eligibility  criteria  applicable  to  the  Disputed  Reimbursement  Amount  refuted  the 
reimbursement  of  the  largest  portion  of  this  amount.   As  of  December 31,  2015,  we  had  made  a  provision  of  R$2,166.9  million  in  our  pension  obligations  accounts  in 
respect of the pension benefit obligation of Plan G0.

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Even though the negotiations with the State are still progressing, we cannot assure you that we will recover the receivables related to the Disputed Reimbursement 

Amount (amount not recorded in our financial statements since it is a contingent asset).

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 administrative and court levels.  Should this conflict persist, we will take all the necessary actions to protect our interests.  On March 24, 2010, we sent to the 
controlling shareholder the official letter approved by our executive committee, proposing that the matter be discussed at the BM&FBOVESPA Arbitration Chamber.  In 
June 2010, we sent a settlement proposal to the Secretary of Treasury, which was denied, and on November 9, 2010, we filed a civil lawsuit against the State of São Paulo 
seeking full reimbursement of the amounts paid as benefits granted by Law No. 4,819/1958.  Regardless of the civil lawsuit, we will continue to actively seek a settlement 
with the State government.

Agreement with the State and the city of São Paulo

On June 23, 2010 the State and the city of São Paulo executed an agreement in the form of a convênio, to which we and ARSESP consented, under which they agreed 

to manage the planning and investment for the basic sanitation system of the city of São Paulo on a joint basis.  The principal terms of this convênio were as follows:









the State and the city of São Paulo would execute a separate agreement with us, granting us exclusive rights to provide water and sewage services in the city 
of São Paulo;

ARSESP would regulate and oversee our activities regarding water and sewage services in the city of São Paulo, including tariffs;

a management committee (Comitê Gestor), consisting of six members appointed for two-year terms, with the State and the city of São Paulo given the right 
to appoint three members each, would be responsible for planning water and sewage services for the city and for reviewing our investment plans; and

we may participate in management committee meetings but may not vote.

In application of the convênio, we executed a separate contract with the State and the city of São Paulo, also dated June 23, 2010, to regulate the provision of these 

services for the following 30 years.  The principal terms of this contract are as follows:



The total investment stated in the contract must be equal to 13% of gross revenues from the provision of services to the city of São Paulo, net of the taxes on 
revenues.

 We  must  transfer  7.5%  of  the  gross  revenues  obtained  from  providing  sanitation  services  in  the municipality  of  São  Paulo  and  subtract  (i) COFINS  and 
PASEP  taxes,  and  (ii) unpaid  bills  of  publicly  owned  properties  in  the  city  of  São  Paulo,  to  the  Municipal  Fund  for  Environmental  Sanitation  and 
Infrastructure  (Fundo  Municipal  de  Saneamento  Ambiental  e  Infraestrutura),  established  by  Municipal  Law  No. 14,934/2009.   In  April  2013,  ARSESP 
postponed the application of such  municipal charges based on a request from the São Paulo State Government to analyze, among other things, methods to 
reduce the impact on consumers.  In May 2014 ARSESP maintained the suspension of Resolution 407/2013 until the results are obtained in the revision of 
the contract signed between us, the city and the State of São Paulo, thereby delaying the authorization to pass the charge through to consumers on the service 
bill.



Our investment plan must be compatible with the sanitation plans of the State, the city of São Paulo and, if necessary, the Metropolitan region.

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

ARSESP will ensure that the tariffs will adequately compensate us for the services we provide and that tariffs may be adjusted in order to restore the original 
balance between each party’s obligations and economic gain (equilíbrio econômico financeiro).

We currently have an investment plan in place that reflects our obligations under the convênio and addresses their compatibility with the sanitation plans of the State, 
the city of São Paulo and, if necessary, the São Paulo metropolitan region.  The investment plan is not irrevocable and is reviewed every four years by our management 
committee.  We draft a detailed work plan every two years, particularly with respect to the investments to be executed in the subsequent period.

Dividends

We regularly pay dividends to our shareholders, including the State of São Paulo.  In the past, we have withheld part of the dividends to which the State was entitled in 

order to offset it against our pending receivables from the State.

In accordance with our agreements with the State, we do not anticipate that we will withhold dividends to which the State was entitled in order to offset it against our 

pending receivables from the State in the near future.

Government Guarantees of Financing

In some situations, the federal government, the State or government agencies guarantee our performance under debt- and project-related agreements.

Furthermore, the federal government has guaranteed, and the State has provided a counter-guarantee, in respect of the financial agreements we entered into with the 
IADB (i) in 1992 and 2000 for the total original aggregate amount of US$650.0 million related to the financing of the first and second phases of the Tietê River recovery 
project to reduce pollution; and (ii) in 2010 for the aggregate amount of US$600 million related to the financing of the third phase of the Tiête River project.  The federal 
government has also guaranteed and the State of São Paulo has provided a counter-guarantee, in respect of the financial agreement we entered with the IBRD in the amount 
of US$100 million for the Water Source Program (Programa Mananciais).

We  also  entered  into  credit  agreements  with  JICA,  which  were  guaranteed  by  the  federal  government,  with  counter-guarantee  from  the  State  of  São  Paulo,  for  the 
financing of (i) the Clean Wave Program for the Baixada Santista metropolitan region, on August 6, 2004, for an aggregate principal amount of ¥21,320 million; (ii) the 
second phase of the Clean Wave Program, in February 2011, for an aggregate principal amount of ¥19,169 million; (iii) the environmental improvement program in the 
basin  of  the  Billings  dam,  in  October 2010,  for  an  aggregate  principal  amount  of  ¥6,208 million;  and  (iv) the  Corporate  Program  for  Water  Loss  Reduction,  in 
February 2012, for an aggregate principal amount of ¥33,584 million.

For more information on the aforementioned loans, see “Item 5.B. Liquidity and Capital Resources—Capital Sources—Indebtedness Financing”.

Use of Reservoirs

We currently use the Guarapiranga and Billings reservoirs, which are also used by another company controlled by the São Paulo State Government, based on a grant 
issued by the DAEE.  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. 

Agreements with Lower Tariffs

We  have  entered  into  agreements  with  public  entities,  including  State  entities  and  municipalities,  which  manage  approximately  7,014  properties.   Under  these 
agreements, these public entities pay a different tariff which is approximately 25.0% lower than the tariff that applies for the public entities that have not entered into these 
agreements, provided such entities implement our Program for Rational Use of Water (Programa de Uso Racional da Água – PURA), which has a fixed target for reduction 
or maintenance of water consumption, according to technical evaluations carried out by us.  These agreements are valid for a 12-month term 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. 

121

Personnel Assignment Agreement among Entities Related to the State Government

We have personnel assignment agreements with entities related to the State Government, under which the expenses are fully passed on and monetarily reimbursed.  
The expenses related to personnel assigned by us to other state government entities in 2015, 2014 and 2013 amounted to R$10.5 million, R$9.7 million and R$12.9 million, 
respectively.

The expenses related to personnel assigned by other entities to us totaled R$0.3 million in 2015, R$0.5 million in 2014, and R$1.0 million in 2013. 

Services Obtained from State Government Entities

As of December 31, 2015 and 2014, we had an outstanding amount payable of R$2.2 million and R$1.6 million, respectively, for services rendered by São Paulo State 

government entities, including the supply of electric power by the Energy Company of São Paulo (Companhia Energética de São Paulo –CESP).

Non-operating Assets

We lend land, free of charge, to DAEE.  Such non-operating assets totaled R$1.0 million as of December 31, 2015 and 2014.

Transactions with SABESPREV Pension Fund

SABESPREV is a pension fund we established to provide our employees with retirement and pension benefits.  The assets of SABESPREV are independently held, but 
we nominate 50.0% of SABESPREV’s board of directors, including the chairman of the board, who has the deciding vote pursuant to the applicable legislation.  Both we 
and  our  employees  make  contributions  to  SABESPREV  pension  plans.   We  contributed  R$9.5  million,  R$8.9  million  and  R$8.4 million  in  2015,  2014  and  2013, 
respectively,  in  the  defined  contribution  plans  and R$23.7  million,  R$23.0  million  and  R$18.3  million,  respectively,  in  the  defined  benefit  plans.   On  May 29,  2001,  a 
federal  law  was  enacted  which,  among  other  provisions,  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.

Our original pension plan (the Defined Benefit Plan) has an actuarial deficit.  We have commenced studies to manage this deficit and have also created a new, defined 
contribution plan, SABESPREV Mais.  Our new plan was approved by Previc in June 2010, after which our old plan stopped accepting new members.  Contributions to the 
new plan are also shared between plan members and Sabesp, and benefits are established based on the balance of the individual member’s account when payment on his or 
her benefit begins.  This balance consists of contributions and profitability obtained when applying resources.  We intended to have members of the old plan migrate their 
reserves  to  the  new  plan.   This  migration  was  interrupted  by  a  judicial  order  as  a  result  of  proceedings  brought  by  representative  entities  for  our  employees  and 
ex-employees.  In October 2010, the judge presiding over the case pronounced in an interim decision that people and reserves were not allowed to migrate between the 
plans until a further decision was made.  This decision also prevents the plan from charging contributions to account for the deficit for those who remained covered by the 
original plan.  In September 2012, the judge presiding over the case ordered a financial expert inspection and in early 2013 a financial expert was appointed to the case.  
The results of this inspection were unfavorable to the representative entities for our employees and ex-employees and in 2015 the proceeding was dismissed, revoking the 
interim decision made in October 2010.  

Compensation of Management

The compensation paid by us to the members of our board of directors, board of executive officers and fiscal committee amounted to R$4.1 million, R$3.8 million and 
R$3.4 million in 2015, 2014 and 2013, respectively, and it refers to salaries and other short-term benefits management.  An additional R$0.5 million, R$0.5 million and 
R$0.6 million related to the bonus program was accrued to executive officers in 2015, 2014 and 2013.

122

For further information on management compensation, see “Item 6.A. Directors and Senior Management—Compensation”.

Loan agreement through credit facility

We  hold  interests  in  some  companies.   Although  we  do  not  hold  the  majority  of  shares  in  any  of  the  companies  in  which  we  hold  interests,  we  are  party  to 
shareholders’  agreements  which  provide  for  the  power  of  veto  with  regard  to  certain  management  proposals  and  decisions.   Due  our  significant  influence  on  these 
companies by way of shareholders’ agreements, for accounting purposes, these companies are accounted for by applying the equity method of accounting. 

We entered into a loan agreement through credit facility with the special purpose enterprises, or “SPEs”, Águas de Andradina S.A., Águas de Castilho S.A., Aquapolo 

Ambiental S.A. and Attend Ambiental S.A. to finance the operations of these companies, until the loans and financing required to banks are cleared. 

The contracts signed with SPEs Águas de Andradina S.A. and Águas de Castilho S.A. were settled.  Other agreements signed with Aquapolo Ambiental S.A. on March 

30, 2012 and Attend Ambiental on May 9, 2014, remain with the same features, according to the table below:

Companies

Attend Ambiental
Aquapolo Ambiental
Aquapolo Ambiental

Total

Credit limit

Principal 
disbursed

Interest 
balance

Total

5,400
5,629
19,000

30,029

5,400
5,629
19,000

30,029

1,757
4,710
8,793

15,260

7,157
10,339
27,793

45,289

Interest rate
SELIC + 3.5% 
p.a.
CDI + 1.2% p.a.
CDI + 1.2% p.a.

Maturity

(i)
04/30/2016 (ii)
10/30/2015 (ii)





Loan for use agreement with Attend Ambiental has a mature date of 180 days, counted from the date of availability of the amount in the account of the borrower, renewable for the same period.  The 
credit facility is overdue as of May 11, 2015 and is subject to contractual default charges, which include a monetary update considering the variation in the Market General Price Index (Índice Geral de 
Preços do Mercado, or IGP-M), 2% penalty fee and interest on arrears of 1% per month. This contract is currently being renegotiated among the parties.

The loan agreement maturing on April 30, 2015, has been amended, extending its maturity to October 30, 2015. We are currently renegotiating with Aquapolo Ambiental S.A. the payment and maturity 
terms of both loan agreements.

As  a  result  of  renegotiations,  the  amounts  of  R$30.0  million  for  principal  and  R$15.3  million  for  interest,  which  were  recognized  in  current  assets  as  “Other 
receivables”, were reclassified to noncurrent assets as “Other receivables”, until new payment terms are agreed upon.  As of December 31, 2015, the balance of principal 
and interest of these contracts is R$45.3 million. In 2015, financial income was impacted by R$10.1 million. 

Pró-Conexão

In 2012, the State of São Paulo approved a project to subsidize connections to the sewage system for low-income families.  Initially intended to last 8 years, the project 
involves capital expenditures of up to R$349.5 million of which 80% will be provided by the State government and 20% by us.  In this period we expect that this program 
will create 192 thousand new sewage connections benefiting approximately 800 thousand people.  

As of  December  2015  we completed approximately 23 thousand sewage  connections, of which  1,107  were completed in  2015, with  total  investments worth R$2.3 
million.  We believe that this program will increase the efficiency of our other sewage collection programs and help improve water quality in the region’s rivers and basins 
as well as improve quality of life for low-income families.

C.

Interests of Experts and Counsel

123

Not applicable.

ITEM 8.

FINANCIAL INFORMATION

A. Financial Statements and Other Financial Information

See “Item 3.A. Selected Financial Data” and “Item 18. Financial Statements”.

Legal Proceedings

We are currently subject to numerous legal proceedings relating to civil, tax, labor, corporate and environmental issues arising in the normal course of our business. 
Several individual disputes account for a significant part of the total amount of claims against us. Our audited financial statements only include provisions for probable and 
reasonably estimable losses and expenses we may incur in connection with pending proceedings. Our material legal proceedings are described in Note 19 to our audited 
financial statements included in this annual report, and that description is incorporated by reference under this Item.

Civil Public Actions Related to Environmental Matters 

We are subject to administrative and judicial proceedings, including proceedings initiated by the Companhia Ambiental do Estado de Sao Paulo (CETESB), the Office 
of the Public Prosecutor of the State of São Paulo and non-governmental organizations.  These proceedings result from alleged environmental damage and relief sought 
against us includes:  (i) cessation of the release of raw sewage into certain local bodies of water; (ii) remedies, in some cases, for environmental damages that have not yet 
been specified and evaluated by the court’s technical experts; (iii) requirements to install and operate sewage treatment facilities in locations referred to in the civil public 
actions; and (iv) imposition of a limit on water extracted from the water springs most affected by the current water crisis.  In certain cases, we are subject to daily fines for 
non-compliance.   In  our  response  to  these  lawsuits,  we  note  that  the  installation  and  operation  of  sewage  treatment  facilities  in  locations  referred  to  in  the  civil  public 
actions is included in our investment plan.  There have already  been unfavorable judicial decisions against us and their effects may include:  (i) investment in works or 
services  not  considered  by  our  long-term  investment  plan;  (ii) early  execution  of  works  or  services  that  were considered  for  execution  in  future  years  in  our  long-term 
investment  plan;  (iii) payments  related  to  environmental  indemnification;  and  (iv)  a  negative  impact  on  our  image  in  national  and  international  markets  and  in  public 
bodies. 

Although we are not able to predict the final outcome of these lawsuits, we believe that the outcome, if unfavorable to us, may have a material adverse effect on us. We 
classify certain of these proceedings as probable loss and possible loss. As of December 31, 2015 we have provisioned R$82.6 million for the matters classified as probable 
losses.

Other Legal Proceedings

The Civil Entity Coordination Committee of Piracicaba  on December 30, 2003 filed a civil public action against us, the National Water Agency and the State of São 
Paulo Treasury Department seeking, among other claims for relief:  (i) the termination of use of 31 m3/s of water from one of the municipality’s reservoirs; (ii) the creation 
of a schedule to regulate water use and withdrawal from the Piracicaba river basin by the Cantareira system to eliminate possible damage to populations downstream; and 
(iii) the development of an environmental impact study on the Cantareira system evaluating the impact of water use and withdrawal on the various basins that constitute the 
system.   In  August  2012,  this  civil  public  action  was  decided  favorably  for  us  in  two  lower  courts,  and  the  plaintiff’s  appeal  to  a  higher  court  seeking  special  and 
extraordinary  recourse  was  denied  based  on  inadmissibility.   We  are  currently  awaiting  a  court  decision  on  the  action  brought  by  the  plaintiff  against  the  decisions  of 
inadmissibility cited.  The amount involved in this proceeding as of December 31, 2015 is R$22.7 billion. We have assessed the risk of loss as remote, and accordingly 
have not made any provisions.

The Public Prosecutor’s Office of the State of São Paulo on November 30, 2012 filed a civil public action against us seeking:  (i) the nullification of the contract we 
entered with the Municipality of São Paulo on June 23, 2010 regarding the service of water supply and sewage services; (ii) our exclusion from BM&FBovespa’s Corporate 
Sustainability Index; and (iii) sewage treatment coverage of the entire Municipality of São Paulo by 2018.  The plaintiff’s request for an injunction was denied, and the 
courts maintained this decision after we presented our defense.  On November 18, 2014, the case was dismissed in the first instance, and the plaintiff then appealed this 
dismissal.   We  are  currently  waiting the  court’s  ruling  on  the appeal.  The  amount involved  in these  proceedings  is  R$14.5 billion  as  of  December 31,  2015.   We  have 
assessed the risk of loss as remote, and accordingly have not made any provisions.

124

Dividends and Dividend Policy

Amounts Available for Distribution

At  each  annual  shareholders’  meeting,  the  board  of  directors  is  required  to  recommend  the  allocation  of  net  profits  for  the  preceding  fiscal  year.   For  purposes  of 
Brazilian Corporate Law, net profits are defined as net income after income tax and social contribution tax 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 half of the net profit as increased or reduced by:





the amount intended to form the legal reserve; and

the amount intended to form the reserves for contingencies and any written-off amounts of the same reserves formed in previous fiscal years.

We are required to maintain a legal reserve, to which we must allocate 5.0% of net profits for each fiscal year until the amount for such reserve equals 20.0% 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 30.0% of our capital.  Net losses, if any, may be offset against the legal reserve.  As of December 31, 2015, 2014 and 
2013 the balance of our legal reserve was R$785.0 million, R$758.1 million and R$713.0 million, respectively, which was equal to 7.8%, 12.2% and 11.5%, respectively, 
of our capital.

Brazilian  Corporate  Law  also  provides  for  two  discretionary  allocations  of  net  profits  that  are  subject  to  approval  by  the  shareholders  at  each  annual  shareholders’ 
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  mandatory  distributable  amount  exceeds  the  sum  of  realized  net  profits  in  any  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  authorize  in  its  bylaws  the  creation  of  a  discretionary  reserve.   Bylaws  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 allocations 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 our shareholders.  Under Law No. 10,303/2001 of October 31, 2001, as amended, 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 allocation until the shareholders 
vote to transfer all or a portion of the reserve to capital or retained earnings.  As of December 31, 2015, 2014 and 2013 we had an investment reserve of R$3,273.6 million, 
R$2,914.0 million and R$5,980.5 million, respectively.

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 our financial statements prepared in accordance with Brazilian GAAP.

125

The  legal  reserve  is  subject  to  approval  by  the  shareholder  vote  at  our  annual  shareholders’  meeting  and  may  be  transferred  to  capital  but  is  not  available  for  the 

payment of dividends in subsequent years.

Mandatory Distribution

Brazilian Corporate Law generally requires that the bylaws 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  bylaws,  the 
mandatory distributable amount has been fixed at an amount equal to not less than 25.0% of the amounts available for distribution, to the extent amounts are available for 
distribution at the end of each given fiscal year.

The mandatory distribution is based on a percentage of adjusted net income, not lower than 25.0%, rather than a fixed monetary amount per share.  Brazilian Corporate 
Law,  however,  permits  a  publicly  held  company,  such  as  us,  to  suspend  the  mandatory  distribution  if  the  board  of  directors  and  the  fiscal  committee  report  to  the 
shareholders’  meeting  that  the  distribution  would  be  inadvisable  in  view  of  the  company’s  financial  condition.   The  suspension  is  subject  to  the  approval  of  holders  of 
common  shares.   In  this  case,  the  board  of  directors  must  file  a  justification  for  such  suspension  with  the  CVM.   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 bylaws 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 when profits were accrued.  The decision to distribute 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 for 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 on shareholders’ equity as 
described  under  “—Record  of  Dividend  Payments  and  Interest  on  Shareholders’  Equity”)  distributed  on  his  or  her  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 us.

Our bylaws allow us to pay interim dividends from preexisting and accumulated profits related to the current or preceding fiscal year.

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 Unibanco S.A., as the custodian and agent for 
the depositary, which is the registered owner of the common shares underlying the ADSs.  Our current registrar is Banco Itaú Unibanco 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. Exchange Controls”.

Payments of cash dividends and distributions, if any, will be made in Brazilian reais 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. Exchange Controls”.  Under current 
Brazilian law, dividends generally 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. 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. 9,249/1995 of December 26, 1995, as amended.  The amount of tax-deductible interest that may be paid is calculated by applying the daily pro rata variation of the 
government’s long-term interest rate (TJLP) on the shareholders’ equity during the relevant period and cannot exceed the greater of:  

126





50.0% 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; or

50.0% of earnings reserves and 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 15.0% or 25.0% if the beneficiary is resident in a low tax jurisdiction (tax haven).  See “Item 10.E. Taxation”.  The amount paid to shareholders as 
interest on shareholders’ equity, net of any withholding tax, may be included as part of the mandatory dividends distributable amount as prescribed in Brazilian Corporate 
Law.

Dividends and interest on shareholders’ equity over the minimum established in a company’s bylaws are recognized when approved by the shareholders in the general 
meeting.  Consequently, the amounts recognized as of December 31, 2015 correspond to the minimum established by law of 25.0% of the net income and the difference of 
R$149.9 million will be recorded in 2016 after the annual shareholders’ meeting.

Distributions of dividends

The  following  table  sets  forth  the  distributions  of  dividends  that  we  made  to  our  shareholders  in  respect  of  our  2015,  2014  and  2013  earnings.   All  these  amounts 

distributed or to be distributed were or will be in the form of interest on shareholders’ equity.

Aggregate amount 
distributed
(in millions of reais)

Payment Dates

Payment per share

149.9
252.3
537.5

*
June 29, 2015
June 27, 2014

0.22
0.37
0.79

Payment per ADS
(in reais)

0.22
0.37
0.79

Year ended December 31,

2015
2014 
2013 



We recorded dividends in the amount of R$127.4 million, which pursuant to our bylaws is our minimum dividend amount.  The dividends will be paid until 60 days after the annual general meeting, 
which was held on April 29, 2016.

Dividend Policy

We intend to declare and pay dividends and/or interest on shareholders’ equity, as required by Brazilian Corporate Law and our bylaws.  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 to determine that it is in our best interest to distribute interest on 
shareholders’ equity.

B. Significant Changes

Other than as disclosed in this annual report, no significant change has occurred since the date of the audited financial statements included in this annual report.

ITEM 9.

THE OFFER AND LISTING

127

A. Offer and Listing Details

Market Price of Common Shares

Our common shares have been listed on the BM&FBOVESPA under the symbol “SBSP3” since June 4, 1997 and, starting on April 24, 2002, have been included in 

the Novo Mercado segment of that exchange.  As of December 31, 2015, we had 4,185 registered holders of common shares.

On April 30, 2007, our shareholders approved a reverse stock split of 125 common shares into one common share.  Following a ratio change effected on January 24, 
2013,  each  ADS  currently  represents  one  of  our  common  shares.   On  April 22,  2013  our  shareholders  approved  a  stock  split,  following  which  each  common  share 
represented three new common shares.  IFRS requires the retrospective application of earnings-per-share computations for stock dividends, stock splits, and reverse splits.

The table below sets forth, for the periods indicated, the reported high and low closing sale prices in reais for common shares on the BM&FBOVESPA.  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.

2016
January 
February 
March 
April 
2015
First quarter 
Second quarter 
Third quarter 
Fourth quarter 
2014
First quarter 
Second quarter 
Third quarter 
Fourth quarter 
2013
First quarter 
Second quarter(2) 
Third quarter 
Fourth quarter 
2012
First quarter 
Second quarter 
Third quarter 
Fourth quarter 
2011
First quarter 
Second quarter 
Third quarter 
Fourth quarter 

Reais per common share

U.S. dollar equivalent per ADS

(1)

Low

High

Low

High

Average daily 
trading volume

16.62
20.70
22.36
22.77
13.25
13.25
15.74
14.50
16.00
15.98
19.61
19.60
19.30
15.98
19.55
85.00
20.40
19.55
21.40
50.42
50.42
68.50
75.67
80.54
39.00
40.10
45.00
39.00
43.03

21.32
23.12
24.20
26.51
20.29
19.40
19.65
18.99
20.29
25.96
25.96
24.35
23.97
20.50
32.13
96.40
31.38
23.96
26.55
92.48
69.66
77.32
92.48
90.50
52.78
47.00
49.50
48.03
52.78

4.11
5.19
6.02
6.20
5.10
5.10
5.07
4.09
4.02
5.83
8.37
8.81
8.47
5.83
8.15
41.90
9.06
8.15
9.70
53.97
53.97
74.85
74.51
76.98
48.75
47.91
56.39
48.75
45.75

5.27
5.84
6.70
7.58
5.45
6.10
6.46
5.92
5.45
10.83
10.83
10.81
10.78
8.07
15.95
47.87
15.66
10.76
11.28
91.52
76.46
74.48
91.52
89.40
56.80
57.71
60.75
61.43
56.80

1,551,121
1,884,174
2,696,605
3,208,250
1,341,147
1,474,031
1,314,025
1,273,028
1,306,283 
1,432,670
1,605,502
1,386,168
1,398,368
1,343,589
1,373,958
557,193
1,755,594
1,719,845
1,401,226
409,457
372,200
321,627
417,208
534,115
258,827
282,548
267,042
245,275
241,197

(1) Following a ratio change effected on January 24, 2013, each ADS represents one common shares.
(2) After April 22, 2013 our common shares are traded considering the stock split.

Market Price of ADSs

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Our ADSs, each of which represents one of our common shares, as of the date of this annual report, are listed on the NYSE under the symbol “SBS”.  Prior to June 8, 
2007, each ADS represented 250 of our common shares.  From that date through January 23, 2013, each ADS represented two of our common shares.  Following a ratio 
change  effected  on  January 24,  2013,  each  ADS  currently  represents  one  of  our  common  shares.   On  April 22,  2013  our  shareholders  approved  a  stock  split,  following 
which each common share represented three new common shares. Our ADSs began trading on the NYSE on May 10, 2002 in connection with the initial offering of our 
equity securities in the United States.

The table below sets forth, for the periods indicated, the reported high and low closing prices for our ADSs on the NYSE.

Price in U.S. dollars per ADS

Low

High

Average daily trading 
volume

2016
January 
February 
March 
April 
2015
First quarter 
Second quarter 
Third quarter 
Fourth quarter 
2014
First quarter 
Second quarter 
Third quarter 
Fourth quarter 
2013
First quarter(1)
Second quarter(2)
Third quarter 
Fourth quarter 
2012
First quarter 
Second quarter 
Third quarter 
Fourth quarter 
2011
First quarter 
Second quarter 
Third quarter 
Fourth quarter 

4.07
5.11
5.72
6.12
3.57
4.86
5.00
3.57
3.88
5.86
8.39
8.86
8.11
5.86
41.60
9.33
8.38
9.76
41.60
56.62
56.62
68.90
74.49
78.16
46.35
48.60
56.91
46.35
46.74

5.31
5.81
6.64
7.64
6.56
6.39
6.56
5.93
5.38
10.93
10.83
10.93
10.86
8.56
48.63
15.88
10.82
11.45
48.63
91.48
76.86
80.18
91.48
88.35
62.63
58.74
62.63
62.07
56.66

1,763,648
1,899,861
2,514,464
4,177,490
2,300,672
2,987,516
2,212,398
2,299,456
1,734,132
2,554,714
2,781,129
2,281,039
2,197,585
2,965,438
490,280
1,649,436
2,055,875
1,725,844
490,280
311,242
325,938
328,410
316,824
321,333
263,370
297,927
284,122
263,200
215,152

(1) After January 23, 2013 our common shares have traded considering the ratio change.  On April 22, 2013 our shareholders approved a stock split, following which each common share represented three 

new common shares.

(2) After April 29, 2013 our ADSs are traded considering the stock split.

B. Plan of Distribution

Not applicable.

C. Markets

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Trading on the Brazilian Stock Exchange

The preferred shares and common shares are traded on the BM&FBovespa, the only Brazilian stock exchange that trades shares. Trading on the BM&FBovespa is 
limited  to  brokerage  firms  and  a  limited  number  of  authorized  entities.  The  CVM  and  BM&FBovespa  have  discretionary  authority  to  suspend  trading  in  shares  of  a 
particular issuer under certain circumstances.

Trading  on  the  BM&FBOVESPA  is  conducted  between  10:00 a.m.  and  5:00 p.m.  or  from  11:00  a.m.  to  6:00  p.m.  (during  daylight  savings  time  in  Brazil).   The 
BM&FBOVESPA also permits trading from 5:30 p.m. to 6:00 p.m. or from 6:30 p.m. to 7:00 p.m. (during daylight savings time in Brazil) during a different trading period 
called the “after market”.  Trading during aftermarket is subject to regulatory limits on price volatility and on the volume of shares transacted through internet brokers.

In order to maintain better quality control over the fluctuation of its index, BM&FBOVESPA has adopted a “circuit breaker” system pursuant to which trading sessions 
are suspended (i) for a period of 30 minutes whenever the index of this stock exchange falls more than 10% from the index registered for the previous day; (ii) for one hour 
if the index of this stock exchange falls 15% or more from the index registered for the previous day, after the reopening of trading; and (iii) for a certain period of time to be 
defined by the BM&FBovespa, if the index of this stock exchange falls 20% or more from the index registered for the previous day, after the reopening of trading.  The 
minimum and maximum price is based on a reference price for each asset, which will be the previous session’s closing quote, when considering the asset at the beginning 
of  the  day  before  the  first  trade,  or  the  price  of  the  day’s  first  trade.  The  asset’s  reference  price  will  be  altered  during  the  session  if  there  is  an  auction  sparked  by  the 
intraday limit being breached. In this case the reference price will become whatever results from the auction. 

BM&FBOVESPA settles the sale of shares three business days after they have taken place, without monetary adjustment of the purchase price.  The shares are paid for 
and  delivered  through  a  settlement  agent  affiliated  with  the  BM&FBOVESPA.   The  BM&FBOVESPA  performs  multilateral  compensation  for  both  the  financial 
obligations and the delivery of shares.  According to the BM&FBOVESPA’s regulations, financial settlement is carried out by the Central Bank’s reserve transfer system.  
The securities are transferred by the BM&FBOVESPA’s custody system.  Both delivery and payment are final and irrevocable.

Trading on the BM&FBOVESPA is significantly less liquid than trading on the NYSE or other major exchanges in the world.  Although any of the outstanding shares 
of a listed company may trade on the BM&FBOVESPA, in most cases fewer than half of the listed shares are actually available for trading by the public, the remainder 
being held by a controlling group or by government entities.

Trading on the BM&FBOVESPA by a holder not deemed to be domiciled in Brazil for Brazilian tax and regulatory purposes, or a “non-Brazilian holder,” is subject to 
certain limitations under Brazilian foreign investment regulations.  With limited exceptions, non-Brazilian holders may trade on Brazilian stock exchanges in accordance 
with  the  requirements  of  CMN  Resolution  No. 4,373/2014,  which  requires  that  securities  held  by  non-Brazilian  holders  be  maintained  in  the  custody  of  financial 
institutions  authorized  by  the  Central  Bank  and  by  the  CVM  or  in  deposit  accounts  with  financial  institutions.   In  addition,  Resolution  No. 4,373/2014  requires 
non-Brazilian  holders  to  restrict  their  securities  trading  to  transactions  on  the  BM&FBOVESPA  or  qualified  over-the-counter  markets.   With  limited  exceptions, 
non-Brazilian holders may not transfer the ownership of investments made under Resolution No. 4,373/2014 to other non-Brazilian holders through a private transaction.  
See “Item 10.E. Taxation—Brazilian Tax Considerations—Taxation of Gains” for a description of certain tax benefits extended to non-Brazilian holders who qualify under 
Resolution No. 4,373/2014.

The Novo Mercado Segment

Since April 24, 2002, our common shares have been listed on the Novo Mercado segment of the BM&FBOVESPA.  The Novo Mercado is a listing segment 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  required  under  Brazilian  law.   A  company  in  the  Novo  Mercado  must  follow  good  practices  of  corporate  governance.   These  rules  generally  increase 
shareholders’ rights and enhance the quality of information provided to shareholders.  On April 18, 2002, June 19, 2006, and April 23, 2012, our shareholders approved 
changes  to  our  bylaws  to  comply  with  the Novo  Mercado  requirements.   In  addition,  the Novo  Mercado  provides  for  the  creation  of  a  Market  Arbitration  Chamber  for 
conflict resolution between investors and companies listed in the Novo Mercado.

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In addition to the obligations imposed by current Brazilian law, a company listed on the Novo Mercado is obligated to:





















maintain only voting shares;

hold public offerings of shares in a manner favoring diversification of the company’s shareholder base and broader access to retail investors;

maintain a minimum free float of at least 25.0% of the outstanding capital stock 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;

ensure that at least 20.0% of the members of the board of directors are independent, as defined under the Novo Mercado regulation;

prepare  annual  financial  statements,  including  cash  flow  statements,  in  compliance  with  U.S. GAAP  or  IFRS  or  reconciled  from  Brazilian  GAAP  to 
U.S. GAAP or IFRS;

disclose information on a quarterly basis, including share ownership of certain of our employees and directors and amount of free float of shares;

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) if it 
elects to delist from the Novo Mercado; and

make greater disclosure of related party transactions.

On May 10, 2011, the Novo Mercado rules were revised and currently establish the following additional obligations:







the chairman of the board of directors is prohibited from simultaneously holding the position of chief executive officer;

the board of directors must disclose its opinion on takeover proposals within 15 days from the presentation of the proposal; and

the company must have a securities purchase policy and a code of ethics.

Regulation of Brazilian Securities Markets

The  Brazilian  securities  markets  are  principally  governed  by  Law  No. 6,385/1976  of  December 7,  1976,  and  Brazilian  Corporate  Law,  each  as  amended  and 
supplemented, and by regulations issued by the CVM, which has regulatory authority over the stock exchanges and securities markets generally, by the CMN, 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  CVM  and  are  subject  to  reporting  requirements.   A  company  registered  with  the  CVM  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 BM&FBOVESPA and may be traded privately subject to some 
limitations.

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To  be  listed  on  a  Brazilian  stock  exchange  a  company  must  apply  for  registration  with  the  CVM  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  BM&FBOVESPA  be  suspended  in  anticipation  of  a  material  announcement.   Trading  may  also  be 
suspended on the initiative of the BM&FBOVESPA or the CVM, 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 CVM 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 CVM serves as intermediary.  
No special application, other than registration with the CVM, is necessary for securities of a public company to be traded in this market.  The CVM 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 BM&FBOVESPA by non-residents of Brazil is subject to limitations under Brazilian foreign investment and tax legislation.  The Brazilian custodian 
for our 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. Exchange Controls”.

D. Selling Shareholders

Not applicable.

E. Dilution

Not applicable.

F. Expenses of the Issue

Not applicable.

ITEM 10.

ADDITIONAL INFORMATION

A. Share Capital

Not applicable.

B. Memorandum and Articles of Association

The following is a summary of the material terms of our common shares, including related provisions of our bylaws and Brazilian Corporate Law.  This description is 

qualified by reference to our bylaws and to Brazilian law.

Corporate Purposes

We are a mixed capital company (sociedade de economia mista) of unlimited duration, incorporated on September 6, 1973, with limited liability, duly organized and 
operating under Brazilian Corporate Law.  As set forth in Article 2 of our bylaws, our corporate purpose is to render basic sanitation services, aimed at the universalization 
of basic sanitation in the state of São Paulo without harming our long-term financial sustainability.  Our activities comprise water supply, sanitary sewage services, urban 
rainwater  management  and  drainage  services,  urban  cleaning  services,  solid  waste  management  services  and  related  activities,  including  the  planning,  operation, 
maintenance  and  commercialization  of  energy,  and  the  commercialization  of  services,  products,  benefits  and  rights  that  directly  or  indirectly  arise  from  our  assets, 
operations and activities.  We are allowed to act, in a subsidiary form, in other Brazilian locations and abroad.

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Directors’ Powers

Although  our  bylaws  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 to be recorded 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.

Under  our  bylaws,  our  shareholders  are  responsible  for  establishing  the  compensation  we  pay  to  the  members  of  our  board  of  directors,  members  of  the  fiscal 

committee and the executive officers.

Pursuant  to  Brazilian  Corporate  Law,  each  member  of  our  board  of  executive  officers  must  be  a  resident  in  Brazil.   Our  bylaws  do  not  establish  any  mandatory 

retirement age limit.

See also “Item 6.A. Directors and Senior Management”.

Description of Common Shares

General

Each common share entitles the holder thereof to one vote at our annual or 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 CVM 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 requires the 
attendance of shareholders, either in person or by proxy, representing at least 25.0% of the shares entitled to vote and, on second call, the meetings can be held with the 
attendance of shareholders, also either in person or by proxy, representing any number of 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 8A. Financial 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 our Company, our common shares are 
entitled to our remaining capital after paying our creditors in proportion to their ownership interest in us.

In principle, a change in shareholder rights, 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 shareholder rights, 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 attending a special meeting called for such reason.  It 
should  be  emphasized,  however,  that  our  by-laws  expressly  prevents  us  from  issuing  preferred  shares.   Brazilian  Corporate  Law  specifies  other  circumstances  where  a 
dissenting shareholder may also have appraisal rights.

According to Brazilian Corporate Law, neither a company’s bylaws nor actions taken at a general meeting of shareholders may deprive a shareholder of certain rights, 

such as:





the right to participate in the distribution of profits;

the right to participate equally and ratably in any remaining residual assets in the event of liquidation of the company;

133







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 bylaws, each of our common shares carries the right to one vote at our shareholders’ meetings.  We may not restrain or 

deny that right without the consent of the holders of a majority of the shares affected.

Neither Brazilian Corporate Law nor our bylaws 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, the State is required to own at least a majority of our outstanding common shares.

According to Brazilian Corporate Law and its regulations, shareholders representing at least 10 percent of our 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 for and not by written 
consent.

In addition, shareholders owning at least 15.0% of the capital may request the right to elect, separately a member of the Board of Directors.

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 his or her 
ownership interest in us, except in the event of the grant and exercise of any option to acquire shares of our capital stock.  The preemptive rights are valid for a 30-day 
period  from  the  publication  of  the  announcement  of  the  capital  increase.   Shareholders  are  also  entitled  to  sell  this  preemptive  right  to  third  parties.   Under  Brazilian 
Corporate Law, we may amend our bylaws 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.  

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. Risk Factors—Risks Relating to Our Common Shares and ADSs—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”.

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 our shareholders in the 
event that at least half of all voting shares outstanding authorize us:



to reduce the mandatory distribution of dividends;

134

















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;

creating  preferred  shares  or  increasing  an  existing  class  of  preferred  shares  without  maintaining  the  existing  ratio  with  the  remaining  class  of  preferred 
shares, unless when already set forth in or authorized by the bylaws;

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 a corporate action 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  condition.   Brazilian  Corporate  Law  allows  companies  to  redeem  their  shares  at  their  economic  value,  subject  to  the  provisions  of  their 
bylaws  and  certain  other  requirements.   Our  bylaws  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 (i) are liquid, defined as 
being  part  of  the  BM&FBOVESPA  index  or  other  stock  exchange  index  (as  defined  by  the  CVM),  and  (ii) are  widely  held,  such  that  the  controlling  shareholder  or 
companies it controls have less than 50.0% of our shares.  Our common shares are included on the BM&FBOVESPA index.

This  right  of  withdrawal  may  also  be  exercised  in  the  event  that  the  entity  resulting  from  a  stock  merger  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 transaction was approved.

We may cancel the right of withdrawal if the payment amount has a material adverse effect on our finances.

Conversion Right

Not applicable because our capital stock is only comprised of common shares.

Special and General Meetings

Unlike the laws governing corporations incorporated under the laws of the United States’ state of Delaware, the Brazilian corporate law does not allow shareholders to 
approve matters by written consent obtained as a response to a consent solicitation procedure.  All matters subject to approval by the shareholders must be approved in a 
general meeting, duly convened pursuant to the provisions of Brazilian corporate law.  Shareholders may be represented at a shareholders’ meeting by attorneys-in-fact who 
are (i) shareholders of the corporation, (ii) a Brazilian attorney, (iii) a member of management or (iv) a financial institution.

135

General shareholders’ meetings shall be called, convened and deliberated under Brazilian Corporate Law to address all matters of interest to the company. General 
shareholders’ meetings may be called by publication of a notice in the Diário Oficial do Estado de São Paulo and in a newspaper of general circulation in our principal 
place of business, and the first call should be made at least 15 days prior to the meeting. In our case, the first call is made 30 days in advance due the issuance of ADRs, as 
recommended by the CVM. The second call should be made at least 8 days in advance, if quorum is not reached, pursuant to the Brazilian Corporate Law”.

At duly called and convened meetings, our shareholders are empowered to take any action regarding our business.  Shareholders have the exclusive right, during our 
annual shareholders’ meetings required to be hold within 120 days of the end of our fiscal year, to approve our financial statements and to determine the allocation of our 
net income and the distribution of dividends related to the fiscal year immediately preceding the meeting.  The members of our board of directors are generally elected at 
annual  shareholders’  meetings.   However,  according  to  Brazilian  corporate  law,  they  can  also  be  elected  at  extraordinary  shareholders’  meetings.   At  the  request  of 
shareholders holding a sufficient number of shares, a fiscal committee can be established and its members elected at any shareholders’ meeting.

A special shareholders’ meeting may be held concurrently with the annual shareholders’ meeting and at other times during the year.  Our shareholders may take the 

following actions, among others, exclusively at shareholders’ meetings:

























election and dismissal of the members of our board of directors and our fiscal committee, if the shareholders have requested the setup of the latter;

approval  of  the  aggregate  compensation  of  the  members  of  our  board  of  directors  and  board  of  executive  officers,  as  well  as  the  compensation  of  the 
members of the fiscal committee, if one has been established;

amendment of our bylaws;

approval of our merger, consolidation or spin-off;

approval of our dissolution or liquidation, as well as the election and dismissal of liquidators and the approval of their accounts;

granting stock awards and approval of stock splits or reverse stock splits;

approval of stock option plans for our management and employees, as well as for the management and employees of other companies directly or indirectly 
controlled by us;

approval, in accordance with the proposal submitted by our board of directors, of the distribution of our net income and payment of dividends;

authorization  to  delist  from  the  Novo  Mercado  and  to  become  a  private  company,  except  if  the  cancellation  is  due  to  a  breach  of  the  Novo  Mercado
regulations by management, and to retain a specialized firm to prepare a valuation report with respect to the value of our shares, in any such events;

approval of our management accounts and our financial statements; 

approval of any primary public offering of our shares or securities convertible into our shares; and

deliberate upon any matter submitted by the board of directors.

136

Limitations on Rights to Own Securities

There  are  no  limitations  under  Brazilian  law  and  our  bylaws  on  the  rights  of  non-residents  or  foreign  shareholders  to  own  securities,  including  the  rights  of  such 

non-resident or foreign shareholders to hold or exercise voting rights.

Equal Treatment Provisions

Pursuant  to  article  40  of  our  bylaws  and  the  Novo  Mercado  regulations,  any  party  that  acquires  our  control  must  extend  a  tender  offer  for  the  shares  held  by 
non-controlling  shareholders  at  the  same  conditions  and  purchase  price  paid  to  the  controlling  shareholder.   In  addition,  State  Law  No. 119/1973,  which  created  our 
Company, requires the State to hold the majority of our shares at all times.

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 our capital 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 absorbed by losses.  They cannot be used as a source for income distribution to shareholders.

Capital Reserve

Our capital reserve is comprised of tax incentives and donations from government agencies and private entities received through December 31, 2007.  The amount of 

R$124.3 million referring to the balance of December 2013 was fully capitalized in 2014.

Investment Reserve

Our  investment  reserve  is  comprised  specifically  of  internal  funds  for  expansion  of  water  and  sewage  service  systems.   As  of  December 31,  2015,  we  had  an 

investment reserve of R$3,273.6 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 20.0% of paid-in capital.  Any accumulated deficit may be charged against the legal reserve.  As of December 31, 2015, the balance of our legal reserve was 
R$785.0 million.

Arbitration

In  connection  with  our  listing  with  the  Novo  Mercado  segment  of  the  BM&FBOVESPA,  we,  our  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 bylaws, any 
dispute 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 BM&FBOVESPA Arbitration Rules in the Market Arbitration 
Chamber.  Any dispute among shareholders, including holders of ADSs, and any dispute 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.

C. Material Contracts

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For  a  description  of  the  material  contracts  entered  into  by  the  State  and  us,  see  “Item 7.B.  Related  Party  Transactions—Transactions  with  the  State  of  São 

Paulo—Agreements with the State”.

D. Exchange Controls

The right to convert dividend or interest payments and proceeds from the sale of 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, that the relevant investments have been registered with the Central Bank and 
the CVM.  Such restrictions on the remittance of foreign capital abroad may hinder or prevent the custodian for our common shares represented by our ADSs or the holders 
of  our  common  shares  from  converting  dividends,  distributions  or  the  proceeds  from  any  sale  of  these  shares  into  U.S. dollars  and  remitting  the  U.S. dollars  abroad.  
Holders  of  our  ADSs  could  be  adversely  affected  by  delays  in,  or  refusal  to  grant  any,  required  government  approval  to  convert  Brazilian  currency  payments  on  the 
common shares underlying our ADS and to remit the proceeds abroad.

  Accordingly, the proceeds from the sale of ADSs by ADR holders outside Brazil are not subject to Brazilian foreign investment controls, and holders of the ADSs are 
entitled to favorable tax treatment under certain circumstances.  See “Item 3.D. 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”.

Since March 30, 2015, CMN Resolution No. 4,373/2014, of September 29, 2014, has been in full effect, providing for the issuance of depositary receipts in foreign 
markets in respect to shares of Brazilian issuers.  The CMN Resolution No. 4,373/2014, among other acts, revoked CMN Resolution No. 1,927/1992, of May 18, 1992, 
CMN Resolution No. 1,289/1987, of March 20, 1987, and CMN Resolution No. 2,689/2000, of January 26, 2000.  Under Brazilian law relating to foreign investment in the 
Brazilian capital markets, foreign investors registered with the CVM and acting through authorized custodial accounts managed by local agents may buy and sell shares on 
Brazilian  stock  exchanges  without  obtaining  separate  certificates  of  registration  for  each  transaction.   Foreign  investors  may  register  their  investment  under  Law  No. 
4,131/1962, of September 3, 1962, as amended, or under CMN Resolution No. 4,373, of September 20, 2014. 

The Law No. 4,131/1962 is the main legislation concerning investment of direct foreign capital and foreign direct equity in companies based in Brazil.  It is applicable 
to  any  amount  of  capital  that  enters  Brazil  in  the  form  of  foreign  currency,  goods  or  services.   Foreign  investment  portfolios  are  regulated  by  CMN  Resolution  No. 
4,373/2014,  CVM  Instruction  No.  559/2015,  of  March  27,  2015,  which  regulates  the  approval  of  ADR  programs  by  the  CVM,  and  CVM Instruction  No.  560/2015,  of 
March  27,  2015,  which  regulates  the  filing  of  transactions  and  disclosure  of  information  by  foreign  investors,  all  reflecting  the  provisions  of  CMN  Resolution  No. 
4,373/2014. 

As of January 1, 2016, foreign investors that intend to be registered with the CVM shall fulfill the requirements under CVM Instruction No. 560/2015.  In accordance 
with  CMN  Resolution  No.  4,373/2014  the  definition  of  a  foreign  investor  includes  individuals,  legal  entities,  mutual  funds  and  other  collective  investment  entities, 
domiciled or headquartered abroad.  In order to become a 4,373 Holder, a foreign investor must:













appoint at least one representative in Brazil, with powers to perform actions relating to its investment;

appoint an authorized custodian in Brazil for its investments, which must be a financial institution or entity duly authorized by the Central Bank or CVM;

appoint a tax representative in Brazil;

through its representative in Brazil, register itself as a foreign investor with the CVM; 

through its representative in Brazil, register its foreign investment with the Central Bank; and

be registered with the Federal Tax Authority (Secretaria da Receita Federal), or the “RFB”, pursuant to RFB Normative Instruction No. 1,470/2014, of May 
30, 2014, and RFB Normative Instruction No. 1,548/2015, of February 13, 2015.

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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 laws are 
subject  to  change,  possibly  with  retroactive  effect,  regarding  the  U.S. federal  income  tax,  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.

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  laws  and  regulations  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 CMN Resolution 4,373/2014, as a 4,373 Holder.

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.

Beginning in 2008, the Brazilian accounting rules were significantly modified in order to align them with IFRS. After the issuance of such new rules, a transitory tax 
regime (regime tributário de transição), or RTT, was created mainly to ensure neutrality of the new accounting rules in connection with the calculation and payment of 
corporate taxes on income. Thus, according to the RTT, Brazilian companies had, only for purposes of calculation of their taxable profit, to use the accounting rules and 
criteria that existed until December 2007. 

As a result of the application of the RTT, the accounting profit of a Brazilian company might be significantly higher (or lower) than its taxable profit. Although this 
specific matter has not been expressly regulated by law, the Brazilian tax authorities issued a normative instruction stating that the amount of dividends paid in excess of the 
profit of a company determined as per the accounting rules and criteria that existed until December 2007 should be subject to taxation. 

On April 14, 2014, Law No. 12,973 was issued to, among other, terminate the Transitory Regime (RTT) and regulate how corporate taxable income should be assessed 
taking as a starting point the accounting profit calculated according to the new accounting rules introduced as from 2008.  Such Law states that dividends related to all 
accounting profits generated between January 2008 and 31 December 2013 in excess of the established methods and criteria in force in 31 December, 2007, are not subject 
to withholding tax, and does not integrate the calculation of income tax and social contribution.  With reference to 2014, the law is not clear, but tax authorities state that 
dividends paid in excess of the profit of a company determined as per the accounting rules and criteria that existed until December 2007 should be subject to withholding 
income tax at the rate of 15%, or 25% if the non-Brazilian holder is domiciled in a country or location that does not impose income tax or where the maximum income tax 
rate is lower than 20% (“Nil or Low Taxation Jurisdiction”).  As of 2015, in view of the termination of the RTT, there would be no differences between the accounting and 
the taxable profit, so that dividends generated since 2015 should be fully paid with no Brazilian withholding tax implications.

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Taxation of Gains

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 a non-Brazilian holder 

to a resident or person domiciled in Brazil.  This is due to the fact that the common shares can be considered assets located in Brazil for purposes of Law No. 10,833/2003.

Thus, gains, for purposes of taxation of gains earned in a sale or disposition of common shares carried out on a Brazilian stock exchange (which includes transactions 

carried out on the organized over-the-counter market):





are exempt from income tax when assessed on a non-Brazilian holder that (1) has registered its investment in Brazil with the Central Bank under the rules of 
CMN Resolution No. 4,373/2014, and (2) is not a resident of or domiciled in a Nil or Low Taxation Jurisdiction; or 

in all other cases, including gains realized by a Non-Resident Holder that is not a 4,373 Holder and/or is a resident of or domiciled in a Nil or Low Taxation 
Jurisdiction, subject to income tax at a 15.0% rate.  In these cases, a withholding income tax at a rate of 0.005% will be applied and can later 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 at a rate of 15%, 
except for Nil or Low Taxation Jurisdiction, which, in this case, would be subject to income tax at a rate of 25%.  Law No. 13.259 of March 17, 2016 increased the income 
tax rates applicable to gains derived by Brazilian individuals up to 22.5% and, such increase, applicable as of January 2017, may also affect non-Brazilian Holders.  Non-
Brazilian Holders should consult with their own tax advisors regarding the consequences of Law 13.259/2016.   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.

For Brazilian purposes, as of January 2009, a Nil or Low Taxation Jurisdiction is considered a regime:  (i) which does not impose income tax or does so at a rate of 
20% or lower, or (ii) where applicable local legislation imposes restrictions on the disclosure of the shareholding composition or the ownership of investments, or on the 
ultimate  beneficiary  of  the  income  derived  from  transactions  carried  out  and  attributable  to  a  non-Brazilian  holder.  See  “—Discussion  on  Low  or  Nil  Taxation 
Jurisdictions”.

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.

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 CMN Resolution No. 4,373/2014 
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.

Sale of ADSs by non-Brazilian holder to another non-Brazilian holder

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.   As 
mentioned above, according to Law No. 10,833/2003 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 definitive judicial court ruling to act as the leading case 
in respect thereto, we are unable to predict whether such understanding will ultimately prevail in the courts of Brazil.

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In case the ADSs are considered assets located in Brazil, gains on disposition of ADSs by a non-Brazilian holder to a resident in Brazil or even to a non-Brazilian 

resident 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.

Exchange of ADSs for common shares

Although there is no clear regulatory guidance, the withdrawal of ADSs in exchange for common shares is not subject to Brazilian income tax to the extent that, as 

described above, ADSs do not fall within the definition of assets located in Brazil for the purposes of Law No. 10,833. 

Upon receipt of the underlying common shares in exchange for ADSs, non-Brazilian holders may also elect to register with the Central Bank the U.S. dollar amount of 

such preferred shares or common shares as a foreign portfolio investment under Resolution No. 4,373/2014 or as a foreign direct investment under Law  No. 4,131/1962.

Exchange of common shares for ADSs

With reference to the deposit of common shares in exchange for ADSs, the difference between the acquisition cost of the common shares and the market price of the 
common shares may be subject to Brazilian income tax at the rate of 15% or 25%, in case the non-Brazilian holder is located in a Nil or Low Taxation Jurisdiction.  In 
some circumstances, there may be arguments to claim that this taxation is not applicable in the case of a non-Brazilian holder that is a 4,373 Holder and is not a resident in a 
Nil or Low Taxation Jurisdiction. 

Discussion on Low or Nil Taxation Jurisdictions

On June 24, 2008, Law No. 11,727/2008 was enacted defining the concept of a “privileged tax regime” in connection with transactions subject to transfer pricing and 
thin capitalization rules.  In this conception, privileged tax regimes are more comprehensive than tax havens.  A “privileged tax regime” is considered to be a jurisdiction 
which:  (i) does not tax income or taxes income at a maximum rate lower than 20.0%; (ii) grants tax advantages to a non-resident entity or individual (a) without requiring 
substantial  economic  activity  in  the  jurisdiction  of  such  non-resident  entity  or  individual  or  (b) to  the  extent  such  non-resident  entity  or  individual  does  not  conduct 
substantial economic activity in the jurisdiction of such non-resident entity or individual; (iii) does not tax income generated abroad, or imposes tax on income generated 
abroad at a maximum rate lower than 20.0%; or (iv) restricts the ownership disclosure of assets and ownership rights or restricts disclosure about economic transactions.

Notwithstanding the fact that the “privileged tax regime” concept was enacted in connection with Brazilian transfer pricing and thin capitalization rules, there is no 
assurance that Brazilian tax authorities will not attempt to apply the concept of privileged tax regimes to other types of transactions, such as investments in the Brazilian 
financial and capital markets.  We recommend that prospective investors consult their own tax advisors from time to time to verify any possible tax consequences of Law 
No. 11,727/2008.

Interest Attributed to Shareholders’ Equity

According  to  Brazilian  laws  and  our  bylaws,  we  may  opt  to  distribute  income  as  interest  attributed  to  shareholders’  equity  as  an  alternative  to  the  payment  of 

dividends.

Distribution  of  an  interest  on  equity  charge  attributed  to  shareholders’  equity  with  respect  to  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 Nil or Low 
Taxation Jurisdiction holder.  

In September 2015, the Brazilian government enacted Provisional Measure 694 which aims at increasing the rate of the Brazilian withholding tax to 18%.  Thus, if 
such Provisional Measure is approved by the Brazilian Congress in 2016, as of 2017 payments made of interest attributed to shareholders’ equity with respect to common 
shares or ADSs will be subject to Brazilian withholding income tax at rates of 18% or 25%, in case of a Nil or Low Taxation Jurisdiction holder.

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Such payments, subject to certain limitations and requirements, are deductible for Brazilian income tax purposes.  This interest is limited to the daily pro rata variation 

of the Federal Government’s long-term interest rate, as determined by the Central Bank from time to time, and cannot exceed the greater of:

(a)

50% of net income (after the social contribution on net profits and before the provision for corporate income tax, and the amounts attributable to shareholders 
as interest on net equity) for the period with respect to which the payment is made; or

(b) 50% of the sum of retained earnings and earnings reserves as of the date of the beginning of the period with respect to which the payment is made.

Provisional Measure 694 also changed the limit applicable to the calculation of the interest attributed to shareholders’ equity.  According to the new law, interest rates 

are limited to the lowest of the daily pro rata variation of the Federal Government’s long-term interest rate or the rate of 5% per year. 

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 is no Brazilian stamp, issue, registration, or similar taxes or duties payable by a non-Brazilian holder of common 
shares or ADSs.

Tax on foreign exchange transactions (“IOF/Exchange”)

Pursuant to Decree No. 6,306/2007, dated December 14, 2007, as amended, or Decree No. 6,306/2007, the conversion of Brazilian currency into foreign currency (e.g., 
for purposes of paying dividends and interest) and the  conversion of foreign currency into Brazilian currency may be subject to the Tax on Foreign Exchange Transactions 
or IOF/Exchange. Currently, for most exchange transactions, the rate of IOF/Exchange is 0.38%. However, exchange transactions carried out for the inflow of funds in 
Brazil  for  investments  in  the  Brazilian  financial  and  capital  market  made  by  a  foreign  investor  (including  a  Non-Resident  Holder,  as  applicable)  are  subject  to 
IOF/Exchange at a 0%. The IOF/Exchange rate will also be 0% for the outflow of funds from Brazil related to these types of investments, including payments of dividends 
and interest on shareholders’ equity and the repatriation of funds invested in the Brazilian market.

The Brazilian government may increase the rate of the IOF/Exchange to a maximum of 25.0% of the amount of the foreign exchange transaction at any time, but such 

an increase would not apply retroactively.

Tax on transactions involving bonds and securities (“IOF/Bonds Tax”)

The IOF may also 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.   The  executive  branch,  also  by  a  Presidential  Decree,  may 
increase the IOF rate by up to 1.5% per day, but only with respect to future transactions. 

U.S. Federal Income Tax Considerations

The following discussion is a summary of certain U.S. federal income tax consequences of the acquisition, ownership and disposition of common shares or ADSs as of 
the date hereof.  This discussion applies only to a beneficial owner of common shares or ADSs that is a “U.S. holder”.  As used herein, the term “U.S. holder” means a 
beneficial owner of a common share or ADS that, for U.S. federal income tax purposes, is:



an individual who is a citizen or resident of the United States;

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





a corporation (or other entity treated as a corporation for U.S. federal income tax purposes) created or organized in or under the laws of the United States, 
any state thereof or the District of Columbia;

an estate the income of which is subject to U.S. 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  U.S. persons  have  the  authority  to  control  all 
substantial decisions of the trust or (2) has a valid election in effect under applicable U.S. Treasury Department regulations to be treated as a U.S. person.

If  a  partnership  (or  other  entity  treated  as  a  partnership  for  U.S. federal  income  tax  purposes)  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.  A U.S. holder that is a partner of a partnership holding common shares or ADSs should 
consult its tax advisors.

Except where noted, this discussion deals only with common shares or ADSs held as capital assets within the meaning of Section 1221 of the Internal Revenue Code of 
1986, as amended, or the Code, and does not deal with U.S. holders that may be subject to special U.S. federal income tax rules, such as dealers in securities or currencies, 
traders in securities that elect to use a mark-to-market method of accounting for their securities holdings, banks or other financial institutions, tax-exempt organizations, 
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.

This  discussion  is  based  upon  the  provisions  of  the  Code,  and  existing  and  proposed  U.S. Treasury  Department  regulations,  administrative  pronouncements  of  the 
Internal Revenue Service, or the IRS, and judicial decisions as of the date hereof.  Such authorities may be repealed, revoked or modified so as to result in U.S. federal 
income tax consequences different from those discussed below, possibly with retroactive effect.  In addition, this discussion 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.

Except as specifically described below, this discussion assumes that we are not a passive foreign investment company, or PFIC, for U.S. federal income tax purposes.  
Please  see  the  discussion  under  “—Passive  Foreign  Investment  Company  Rules”  below.   Further,  this  discussion  does  not  address  the  U.S. federal  estate  and  gift, 
alternative minimum tax, Medicare tax on net investment income, state, local or non-U.S. tax consequences of acquiring, holding or disposing of common shares or ADSs.

ADSs

In general, for U.S. 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 U.S. federal income tax.  However, the U.S. Treasury Department 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 income taxes described herein could be affected by future actions that may be 
taken by the U.S. Treasury Department.

Taxation of Dividends

The gross amount of distributions paid to a U.S. holder (including Brazilian taxes that are withheld, 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  U.S. federal  income  tax  principles.   Such  income  generally  will  be  includable  in  a  U.S. holder’s  gross  income  as  ordinary  income  when  actually  or 
constructively  received  by  the  U.S. holder,  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. holder’s adjusted 
tax basis in the common shares or ADS, causing a reduction in such adjusted tax basis (and 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.  Because we do not expect to 
maintain calculations of earnings and profits in accordance with U.S. federal income tax principles, U.S. holders should expect that a distribution will generally be treated 
as a dividend for U.S. federal income tax purposes.  Distributions of additional common shares or ADSs to U.S. holders that are part of a pro rata distribution to all of our 
shareholders generally will not be subject to U.S. federal income tax.

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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  the  U.S. holder,  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, the U.S. holder will have a tax 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 foreign currency gain or loss that is 
treated as U.S. source ordinary income or loss.  If dividends paid in reais are converted into U.S. dollars on the day they are received by the U.S. holder or the Depositary, 
as the case may be, U.S. holders generally should not be required to recognize foreign currency gain or loss in respect of the dividend income.  U.S. holders should consult 
their own tax advisors regarding the treatment of any foreign currency gain or loss if any reais received by the U.S. holder or the Depositary or its agent are not converted 
into U.S. dollars on the date of receipt.

Certain dividends received by certain non-corporate U.S. holders may be eligible for preferential tax rates 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 PFIC for U.S. federal income tax purposes 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 for the 
current taxable year.  We generally will be treated as a qualified foreign corporation with respect to our ADSs so long as the  ADSs remain listed on the NYSE.  Based on 
existing guidance, however, it is not entirely clear whether dividends received with respect to the common shares (to the extent not represented by ADSs) will be eligible 
for this treatment, because the common shares are not themselves listed on a U.S. exchange.  U.S. holders should consult their own tax advisors about the application of this 
preferential tax rate to dividends paid directly on common shares.

Subject to certain complex limitations and conditions (including a minimum holding period requirement), Brazilian income taxes withheld on dividends, if any, may be 
treated as foreign income taxes eligible for credit against a U.S. holder’s U.S. federal income tax liability.  Alternatively, if a U.S. holder does not elect to claim a foreign 
income  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.  For the 
purposes  of  the  U.S. foreign  tax  credit  limitations,  the  dividends  paid  by  us  should  generally  constitute  “passive  category  income”  for  most  U.S. holders.   The  rules 
governing  the  foreign  tax  credit  are  complex.   U.S. holders  should  consult  their  tax  advisors  regarding  the  availability  of  the  foreign  tax  credit  under  their  particular 
circumstances.

Taxation of Capital Gains

For U.S. federal income tax purposes, a U.S. holder generally will recognize taxable gain or loss on any sale, exchange or other taxable 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 the U.S. holder’s adjusted tax basis in 
the common share or ADS, determined in U.S. dollars.  Such gain or loss will generally 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 taxable disposition the U.S. holder has 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 a U.S. holder will generally be treated as U.S. source gain or loss.  Consequently, a U.S. holder may not be able to use the foreign tax credit 
arising from Brazilian income tax imposed, if any, on the disposition of a common share or ADS unless such credit can be applied (subject to applicable limitations) against 
U.S. federal income tax due on other income treated as derived from foreign sources. 

144

Passive Foreign Investment Company Rules

Based upon our current and projected income, assets, activities and business plans, we do not expect the common shares or ADSs to be considered shares of a PFIC for 
our current fiscal year (although the determination cannot be made until the end of such fiscal year), and we intend to continue our operations in such a manner that we do 
not expect to be classified as a PFIC in the foreseeable future.  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, assets and the nature of our business, as well as the income, assets and business of 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 eligible for preferential rates of U.S. federal income taxation.  In addition, a U.S. holder that owns common shares or ADSs during any taxable 
year that we are treated as a PFIC would generally be required to file IRS form 8621, including in order to comply with additional annual filing requirements imposed 
under  legislation  enacted  in  2010.   U.S. holders  should  consult  their  own  tax  advisors  regarding  the  application  of  the  PFIC  rules  (including  any  information  reporting 
requirements in connection therewith) 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 a U.S. holder unless 
a U.S. holder establishes its status as an exempt recipient, and backup withholding (currently at a rate of 28 percent) may apply to such amounts if the U.S. holder does not 
establish its status as an exempt recipient or fails to provide a correct taxpayer identification number and certify that such U.S. holder is not subject to backup withholding.  
The amount of any backup withholding from a payment to a U.S. holder will be allowed as a refund or credit against such U.S. holder’s U.S. federal income tax liability 
provided the U.S. holder timely furnishes the required information to the IRS.

In addition, U.S. holders should be aware that additional reporting requirements apply with respect to the holding of certain foreign financial assets, including stock of 
foreign issuers which is not held in an account maintained by a financial institution, if the aggregate value of all of such assets exceeds US$50,000.  U.S. holders should 
consult their own tax advisors regarding the application of the information reporting rules to our common shares and ADSs and the application of these additional reporting 
requirements for foreign financial assets to their particular situation.

F. Dividends and Payments Agents

Not applicable.

G. Statements by Experts

Not applicable.

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  and  supplemented,  or  the 
Exchange Act.  Accordingly, we are required to file reports and other information with the SEC.  You may inspect and copy reports and other information filed by us at the 
public  reference  facilities  maintained  by  the  SEC  at  100  F  Street,  N.W.,  Washington  D.C.  20549.   Our  filings  will  also  be  available  at  the  SEC’s  website  at 
http://www.sec.gov. Reports and other information may also be inspected and copied at the offices of the NYSE at 20 Broad Street, New York, New York 10005.

145

Our website is located at http://www.sabesp.com.br and our investor relations website is located at http://www.sabesp.com.br/investors.  (These URLs are intended to 
be an inactive textual reference only. They are not intended to be an active hyperlink to our website.  The information on our website, which might be accessible through a 
hyperlink resulting from this URL is not, and shall not be deemed to be, incorporated into this annual report.)

We also furnish to the depositary annual reports in English including audited annual financial statements and reviewed 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.

I.

Subsidiary Information

Not applicable.

ITEM 11.

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Market Risk

We are exposed to various market risks, in particular, foreign currency risk and interest rate risk.  We are exposed to foreign currency risk because a substantial portion 
of our financial indebtedness is 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 further information on our market risks, see Note 5 to our 
financial statements as of December 31, 2015 and 2014 and for the years ended December 31, 2015, 2014 and 2013 included elsewhere in this annual report.

Exchange Rate Risk

As of December 31, 2015 and 2014, R$6,617.8 million and R$4,346.3 million, or 50.4% and 40.3%, respectively, of our debt obligations were denominated in foreign 
currencies.  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 and yen-denominated debt that would have resulted as of December 31, 2015, 2014 and 2013 
from  each  hypothetical  instantaneous  and  unfavorable  1%  change  in  the  U.S.  dollar  and  yen  against  the  real  would  have  been  approximately  R$66.2  million,  R$43.5 
million  and  R$37.0 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$661.8 million, R$434.6 million and R$369.9 million as of December 31, 2015, 2014 and 2013, respectively.

The fluctuation of the real in relation to the U.S. dollar and yen for the years ended December 31, 2015, 2014 and 2013 were as follows:

Depreciation (appreciation) of the real in relation to the U.S. dollar
Depreciation (appreciation) of the real in relation to the yen 

146

2015

Year ended December 31,

2014
(in percentages)

47.0
46.0

13.4
(0.4)

2013

14.6
(5.9)

We have not contracted derivative financial instruments in the years ended December 31, 2015, 2014 and 2013.

For further information regarding foreign currency risk, see Note 5.1(a) of our 2015 financial statements.

As of December 31, 2015, 2014 and 2013, we had no short-term indebtedness outstanding, other than the current portion of long-term debt.

Interest Rate Risk

As of December 31, 2015 and 2014, R$1,504.8 million, or 11.5%, and R$1,585.2 million, or 14.7%, respectively, of our total debt outstanding balance denominated in 
reais  was  based  on  variable  rates  of  interest  based  on  the  UPR,  which  is  equivalent  to  the  TR.   In  addition,  as  of  December 31,  2015  and  2014,  R$1,651.1  million,  or 
12.6%, and R$1,752.3 million, or 16.2%, respectively, of our total debt denominated in reais was subject to interest rates based on the CDI.  As of December 31, 2015 and 
2014, R$2,938.6 million and R$1,967.1 million, respectively, of our foreign-currency denominated debt was based on the IADB and the IBRD variable rates of interest, 
which are determined based on the cost of funding of these multilateral organizations in each period.

As of December 31, 2015 and 2014, we did not have any derivative contracts outstanding which limited exposure to changes in the UPR or the CDI or in the IADB or 
IBRD 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$1,562.0 million and R$1,604.8 million as of December 31, 2015 and 2014, respectively, 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 interest based on the CDI.  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$131.2 million, R$107.9 million and R$94.5 million if a hypothetical 
instantaneous and unfavorable change of 100 basis points in the interest rates applicable to financial liabilities as of December 31, 2015, 2014 and 2013, respectively, had 
occurred.  Consistent with these estimates, a hypothetical instantaneous and unfavorable 1000 basis points change in these interest rates would have resulted in losses of 
approximately R$1,312.2 million, R$1,078.6 million and R$945.0 million as of December 31, 2015, 2014 and 2013, 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, as applicable, 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  (i.e.,  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, 2015.  For the foreign currency denominated obligations, these amounts have been converted at the selling rates as of December 31, 2015 
and do not represent amounts which may actually be payable with respect to such obligations on the dates indicated.

Assets

Cash equivalents denominated in reais 

Liabilities

Long-term debt (current and noncurrent portion)

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 IPCA 

Floating rate, denominated in reais indexed by CDI 

Fixed rate, denominated in reais 

Floating rate, denominated in U.S. dollars 

Fixed rate, denominated in Yen 

Fixed rate, denominated in U.S. dollars 

Total long-term debt 

As of December 31, 2015
Expected maturity date

2016

2017

2018

2019 and after

Total

(in millions, except percentages)

Average annual 
interest rate

1,562.0

-

-

-

1,562.0

103.0

130.1

103.2

276.8

12.0

248.3

82.4

570.5

100.5

146.6

42.1

736.1

22.5

314.9

72.3

-

103.9

146.6

358.3

393.8

23.6

215.9

73.7

-

1,526.3

1,435.0

1,315.8

1,197.4

695.5

1,190.6

244.5

476.7

2,148.7

1,528.5

1,362.6

8,844.5

1,504.8

1,118.8

1,694.2

1,651.2

534.8

2,927.8

1,756.9

1,933.1

13,121.6

9.8%

8.9%

17.1%

16.2%

2.3%

1.6%

3.4%

7.8%

147

UPR stands for Standard Reference Unit (Unidade Padrão Referência) and is equal to TR, which was 0.2250% per month as of December 31, 2015; CDI stands for Interbank Deposit Rate (Certificado de 
Depósitos Interbancários), which was 14.14% per annum as of December 31, 2015; IGP-M was 10.54% per annum as of December 31, 2015; TJLP stands for Long-term Interest Rate (Taxa de Juros a Longo 
Prazo), published quarterly by the Central Bank, which was 7.0% per annum as of December 31, 2015.

The percentage of our indebtedness subject to fixed and floating interest rate is as follows:

2015

22.3%

45.5%

4.1%

13.4%

14.7%

100.0%

As of December 31,

2014

18.1%

55.2%

4.5%

10.0%

12.2%

100.0%

2013

16.0%

56.8%

4.0%

9.9%

13.3%

100.0%

Floating rate debt:

Denominated in U.S. dollars 

Denominated in reais 

Fixed rate debt:

Denominated in reais 

Denominated in Yen 

Denominated in U.S. dollars 

Total

ITEM 12.

DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES

A. Debt Securities

Not applicable.

B. Warrants and Rights

Not applicable.

C. Other Securities

Not applicable. 

D. American Depositary Shares

In the United States, our common shares trade in the form of ADS.  Following a ratio change effected on January 24, 2013, each ADS represents one common share of 
our company.  Following a stock split which took place on April 25, 2013, we issued two new ADSs for each ADS currently trading and distributed them to our holders on 
April 29, 2013. The ADSs are issued by The Bank of New York Mellon, as Depositary pursuant to a Deposit Agreement.  The ADSs commenced trading on the NYSE on 
May 10, 2002. 

Fees and Expenses 

The following table summarizes the fees and expenses payable by holders of ADRs:

Persons depositing common shares or ADR holders must pay:

For:

US$5.00 (or less) per 100 ADSs (or portion of 100 ADSs)

Issuance of ADSs, including issuances resulting from a distribution of common shares or 
rights or other property

Cancellation of ADSs for the purpose of withdrawal, including if the deposit agreement 
terminates
US$0.05 (or less) per ADS or portion thereof (to the extent not prohibited by the rules of 
any stock exchange on which the ADSs are listed for trading)
A fee equivalent to the fee that would be payable if securities distributed to you had been 
common shares and the common shares had been deposited for issuance of ADSs
US$0.05 (or less) per ADS or portion thereof per calendar year (in addition to the cash 
distribution fee of $0.02 per ADS that the depositary has collected during the year)
Registration or transfer fees

Cable, telex and facsimile transmissions expenses (when expressly provided in the deposit 
agreement)
Expenses of the depositary in converting foreign currency to U.S. dollars
Expenses of the depositary

Taxes and other governmental charges the depositary or the custodian have to pay on any 
ADR or common share underlying an ADR, for example, stock transfer taxes, stamp duty or 
withholding taxes
Any charges incurred by the depositary or its agents for servicing the deposited securities

Any cash distribution to you

Distribution of securities distributed to holders of deposited securities which are distributed 
by the depositary to ADR holders
Depositary services

Transfer and registration of common shares on our common share register to or from the 
name of the depositary or its agent when you deposit or withdraw common shares

As necessary

No charges of this type are currently made in the Brazilian market

148

Payment of Taxes

The depositary may deduct the amount of any taxes owed from any payments to you.  It may also sell deposited securities, by public or private sale, to pay any taxes 
owed.  You will remain liable if the proceeds of the sale are not sufficient to pay the taxes.  If the depositary sells deposited securities, it will, if appropriate, reduce the 
number of ADSs to reflect the sale and pay to you any proceeds, or send to you any property, remaining after it has paid the taxes.

Reimbursement of Fees

The Bank of New York Mellon, as depositary, has agreed to reimburse us for expenses we incur that are related to establishment and maintenance expenses of the ADS 
program.   The  depositary  has  agreed  to  reimburse  us  for  our  continuing  annual  stock  exchange  listing  fees.   The  depositary  has  also  agreed  to  pay  the  standard 
out-of-pocket  maintenance  costs  for  the  ADRs,  which  consist  of  the  expenses  of  postage  and  envelopes  for  mailing  annual  and  interim  financial  reports,  printing  and 
distributing dividend checks, electronic filing of United States federal tax information, mailing required tax forms, stationery, postage, facsimile, and telephone calls.  It has 
also agreed to reimburse us annually for certain investor relationship programs or special investor relations promotional activities.  In certain instances, the depositary has 
agreed to provide additional payments to us based on any applicable performance indicators relating to the ADR facility.  There are limits on the amount of expenses for 
which the depositary will reimburse us, but the amount of reimbursement available to us is not necessarily tied to the amount of fees the depositary collects from investors.

149

The depositary collects its fees for delivery and surrender of ADSs directly from investors depositing shares or surrendering ADSs for the purpose of withdrawal or 
from intermediaries acting for them.  The depositary collects fees for making distributions to investors by deducting those fees from the amounts distributed or by selling a 
portion of distributable property to pay the fees.  The depositary may collect its annual fee for depositary services by deduction from cash distributions or by directly billing 
investors or by charging the book-entry system accounts of participants acting for them.  The depositary may generally refuse to provide fee-attracting services until its fees 
for those services are paid.

Reimbursement of Fees Incurred in 2015

From  January 1,  2015  to  December 31,  2015,  we  received  reimbursements  in  the  amount  of  US$1.5  million  for  standard  out-of-pocket  maintenance  costs  for  the 

ADRs, any applicable performance indicators relating to the ADR facility, marketing fees and legal fees.

150

ITEM 13.

DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES

Not applicable.

 PART II 

ITEM 14. MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS

Not applicable.

ITEM 15.

CONTROLS AND PROCEDURES

A. Disclosure Controls and Procedures

We carried out an evaluation under the supervision of and with the participation of our management, including our Chief Executive Officer and Chief Financial and 
Investor Relations Officer, of the effectiveness of the design and operation of our disclosure controls and procedures, including those defined in the United States Exchange 
Act Rule 13a-15(e), as of the year ended December 31, 2015. 

As a result of this evaluation, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures were both designed 
and effective at the reasonable assurance level as of December 31, 2015, that the information required to be disclosed in our filings and submissions under the Exchange 
Act  is  recorded,  processed,  summarized,  and  reported  within  the  time  periods  specified  by  the  SEC’s  rules  and  forms,  and  that  this  information  is  accumulated  and 
communicated  to  our  management,  including  our  Chief  Executive  Officer  and  Chief  Financial  and  Investor  Relations  Officer,  as  appropriate  to  allow  timely  decisions 
regarding required disclosure.

B. Management’s Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal controls over financial reporting.

Our internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of 
financial  statements  for  external  purposes  in  accordance  with  IFRS,  as  issued  by  the  IASB.   Our  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 our assets, (2) provide 
reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with IFRS, as issued by the IASB, and that our 
receipts  and  expenditures  are  being  made  only  in  accordance  with  authorizations  of  our  management  and  directors,  and  (3) provide  reasonable  assurance  regarding 
prevention or timely detection of unauthorized acquisition, use, or disposition of our 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  misstatements.   Also,  projections  of  any  evaluation  of 
effectiveness  to  future  periods  are  subject  to  the  risk  that  controls  may  become  inadequate  because  of  changes  in  conditions,  or  that  the  degree  of  compliance  with  the 
policies or procedures may deteriorate.

Under the supervision and with the participation of our CEO and CFO, our management conducted an assessment of our internal control over financial reporting as of 

December 31, 2015 based on the criteria established in “Internal Control —Integrated Framework” issued by COSO in 2013.

151

As  a  result  of  the  assessment  described  above,  our  management  concluded  that  as  of  December 31,  2015,  we  did  maintain  effective  internal  control  over  financial 

reporting based on the criteria established in “Internal Control — Integrated Framework” issued by COSO in 2013. 

Our external auditors identified a material weakness in our internal controls over financial reporting related to our control over the interpretation and application of the 
accounting treatment for the acquisition of a 30-year concession awarded to Sabesp by the Municipality of Santos in 2015.  Our external auditors proposed an adjustment 
during the performance of their 2015 interim procedures to correct the accounting treatment. This adjustment was recorded in our annual financial statements for the year 
ended December 31, 2015. 

The  transaction  and  related  accounting  involved  certain  unpaid  court  judgments  owed  by  Santos  to  us,  which  were  the  subject  of  a  settlement  agreement  between 
Santos and us at the time of the award of the concession.  The debt owed to us by the Municipality of Santos had previously been accounted for as an impaired accounts 
receivable. This transaction was unusual, both in terms of the economic settlement with Santos and due to specific regulations that apply to Sabesp. Indeed, because Santos 
is the anchor concession city for the metropolitan region of Baixada Santista, the economic characteristics of this case are so unique that our Management does not foresee 
that the same methodology would be applied in the future. 

Our Management believes that alternative interpretations are possible regarding the accounting treatment.  On the basis of the amount involved, our Management did 

not consider the related adjustment to be material. Furthermore, this transaction was subject to our regular approval and control process. 

Consequently, our Management does not believe there is a control deficiency or a material weakness in the design or operation of our internal control over financial 

reporting related to this transaction. 

Our Management’s conclusion was later confirmed by the opinion of a renowned accountancy advisory firm in Brazil that we retained in early 2016 to provide an 

opinion on this matter. 

Our independent registered public accounting firm, Deloitte Touche Tohmatsu Auditores Independentes, has issued an adverse audit report on the effectiveness of our 

internal control over financial reporting.  That report is included below.

C. Attestation Report of the Registered Public Accounting Firm

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM ON INTERNAL CONTROL OVER FINANCIAL REPORTING

To the Shareholders, Board of Directors and Management of Companhia de Saneamento Básico do Estado de São Paulo – SABESP 
São Paulo – SP

We have audited Companhia de Saneamento Básico do Estado de São Paulo – SABESP’s (the “Company’s”) internal control over financial reporting as of December 
31,  2015,  based  on  criteria  established  in  Internal  Control  -  Integrated  Framework  (2013)  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway 
Commission.  The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of 
internal control over financial reporting, included in the accompanying Management’s 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  International  Financial  Reporting 
Standards (IFRS), as issued by the International Accounting Standards Board (IASB). 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  International 
Financial  Reporting  Standards  (IFRS)  as  issued  by  the  International  Accounting  Standards  Board  (IASB),  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.

152

        A material weakness  is a  deficiency, or  a combination of deficiencies,  in  internal  control  over financial reporting,  such  that there is  a reasonable  possibility  that a 
material misstatement of the company’s annual financial statements will not be prevented or detected on a timely basis. 

         We  have  identified  the  following  material  weakness  that  has  not  been  identified  as  a  material  weakness  in  management´s  assessment:  the  control  related  to  the 
interpretation and application of accounting practices did not operate effectively for one significant unusual transaction, which resulted in a material weakness. The control 
activity is the review and approval of the technical accounting memo prepared by the Company´s IFRS accounting specialist. Such control activity did not identify an error 
in the interpretation and application of accounting practices related to the methodology adopted for the fair value measurement of impaired accounts receivables that had 
been given as part of the consideration paid to acquire the rights to operate a concession.  The error, which resulted in the overstatement of intangible assets and financial 
revenue and understatement of selling expenses, was corrected by management in the financial statements as of and for the year ended December 31, 2015. Accordingly, 
there was a reasonable possibility that a material misstatement of the Company’s annual financial statements could have occurred or occur in the future which would not 
have been prevented or detected by the Company’s controls on a timely basis. 

        This material weakness was considered in determining the nature, timing, and extent of audit tests applied in our audit of the financial statements as of and for the year 
ended December 31, 2015 of the Company and this report does not affect our report on such financial statements.

        Because of the omission of the material weakness described above from management’s assessment, management’s assessment that the Company maintained effective 
internal control over financial reporting as of December 31, 2015 is not fairly stated.

         In  our  opinion,  because  of  the  effect  of  the  material  weakness  described  above  on  the  achievement  of  the  objectives  of  the  control  criteria,  the  Company  has  not 
maintained,  in  all  material  respects,  effective  internal  control  over  financial  reporting  as  of  December 31,  2015,  based  on  the  criteria  established  in  Internal  Control  - 
Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

         We  do  not  express  an  opinion  or  any  other  form  of  assurance  on  management’s  statements  regarding  its  reasons  for  not  identifying  the  material  weakness  in 
management’s assessment.

        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, 2015 of the Company and our report dated May 11, 2016 expressed an unqualified opinion on those financial statements.

/s/ Deloitte Touche Tohmatsu Auditores Independentes
May 11, 2016
São Paulo, Brazil

D. Changes in internal control over financial reporting

There have been no changes in our internal control over financial reporting that occurred during the fiscal year ended December 31, 2015 that have materially affected, 

or are reasonably likely to materially affect, our internal control over financial reporting.

ITEM 16.  

A. Audit Committee Financial Expert 

At our 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 16  of  Form 20-F.   Jerônimo 
Antunes  is an “independent director” within the meaning of the SEC rules.

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 Exchange Act.  Our code of business conduct and ethics, called 
Code  of  Ethics  and  Conduct,  applies  to  all  of  our  employees,  including  our  directors,  chief  executive  officer,  chief  financial  and  investor  relations  officer  and  head  of 
accounting, as well as our suppliers and third-party contractors.  To ensure compliance with the Code of Ethics and Conduct, we have an Ethics Committee and an internal 
Whistle-blowing Channel, as well as a Corporate Accountability Procedure and an Ombudsman Office as well as a Customer Service that receive external complaints.  The 
internal channel can receive anonymous whistle blowing.  The results of the investigations are forwarded to the Audit Committee.  Cases of recurrence are reported to the 
Ethics Committee, which urges the related departments to develop preventive actions.  In 2015, 108 whistle blowings were recorded, 58.33% of which were verified and 
41.67% are under investigation.  Out of the total, 13% refer to misconduct, such as moral harassment, discrimination, persecution and unfair treatment.  During 2015, 20 of 
our employees or outsourced employees received penalties (3 warnings, 4 suspensions and 13 dismissals).  Our Ethics Committee is also responsible for addressing relevant 
inquiries  and  interpreting  the  norms  of  the  Code  of  Ethics  for  all  of  our  employees.   Our  Code  of  Ethics  and  Conduct  is  available  on  our  web  site  at 
http://www.sabesp.com.br at the following location:  Investors Relations – 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.  You can obtain copies of our Code of Ethics and 
Conduct, without charge, upon request to sabesp.ri@sabesp.com.br.

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, 2015, 2014 and 

2013.  Deloitte Touche Tohmatsu Auditores Independentes’s activity began with the review of the Quarterly Information (“ITRs”) reporting for the third quarter of 2012.

153

The following table presents the aggregate fees for professional services and other services rendered to us by Deloitte Touche Tohmatsu Auditores Independentes in 

2015 and 2014:

Audit Fees(1)
Audit-Related Fees 
Tax Fees 
All Other Fees 
Total 

Year ended December 31,

2015

1.7
-
-
-
1.7

(in millions of reais)

2014

1.2
-
-
-
1.2

(1) Audit Fees are the fees billed by our independent auditors 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. 

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 our independent registered public 
accounting firm.  Our management is required to obtain the board of directors’ approval before engaging an independent registered public accounting firm 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  registered  public  accounting  firm.   As  part  of  the  bidding  process,  the  independent  registered  public 
accounting firm is required to submit proposals, and are then selected by us based on certain criteria including technical expertise and cost.

During 2014 and 2015, Deloitte Touche Tohmatsu Auditores Independentes did not provide non-audit services to us.

D. Exemptions from the Listing Standards for Audit Committees

None

E. Purchases of Equity Securities by Issuer and Affiliated Purchasers

Not applicable.

F. Change in Registrant’s Certifying Accountant

Not applicable.

G. Corporate Governance

Significant Differences between our Corporate Governance Practices and NYSE Corporate Governance Standards

We  are  subject  to  the  NYSE  corporate  governance  listing  standards.   As  a  foreign  private  issuer,  the  standards  applicable  to  us  are  considerably  different  than  the 
standards  applied  to  U.S. listed  companies.   Under  the  NYSE  rules,  we  are  required  only  to:   (a) have  an  audit  committee  or  audit  board,  pursuant  to  an  applicable 
exemption available to foreign private issuers, that meets certain requirements, as discussed below, (b) provide prompt certification by our chief executive officer of any 
material non-compliance with any corporate governance rules, and (c) provide a brief description of the significant differences between our corporate governance practices 
and  the  NYSE  corporate  governance  practice  required  to  be  followed  by  U.S. listed  companies.   The  discussion  of  the  significant  differences  between  our  corporate 
governance practices and those required of U.S. listed companies follows below.

154

Majority of Independent Directors

The NYSE rules require that a majority of the board must consist of independent directors.  Independence is defined by various criteria, including the absence of a 
material relationship between the director and the listed company.  Brazilian law does not have a similar requirement.  Under Brazilian law, neither our board of directors 
nor our management is required to test the independence of directors before their election to the board.  However, both the Brazilian Corporate Law and the CVM have 
established  rules  that  require  directors  to  meet  certain  qualification  requirements  and  that  address  the  compensation  and  duties  and  responsibilities  of,  as  well  as  the 
restrictions applicable to, a company’s executive officers and directors.  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  be  independent  as  defined  under  Novo  Mercado  Regulations.   Currently,  four  of  our  10  directors  are  independent, 
pursuant to the Novo Mercado Listing Regulations.  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 required under the NYSE rules.

Executive Sessions

NYSE rules require that the non-management directors must meet at regularly scheduled executive sessions without management present.  The Brazilian Corporate 
Law  does  not  have  a  similar  provision.   According  to  the  Brazilian  Corporate  Law,  up  to  one-third  of  the  members  of  the  board  of  directors  can  be  elected  from 
management.  There is no requirement that non-management directors meet regularly without management.  Our chairperson and Chief Executive Officer is a member of 
our board of directors.  All other members of our board of directors meet the NYSE’s definition of “non-management” directors.  The non-management directors on our 
board do not typically meet in executive session.  Our board of directors consists of nine non-management directors.

Fiscal Committee

Under the Brazilian Corporate Law, the Conselho Fiscal, or fiscal committee, is a corporate body independent of management and a company’s external auditors.  The 
fiscal committee may be either permanent or non-permanent, in which case it is appointed by the shareholders to act during a specific fiscal year.  A fiscal committee is not 
equivalent  to,  or  comparable  with,  a  U.S. audit  committee.   The  primary  responsibility  of  the  fiscal  committee  is  to  review  management’s  activities  and  a  company’s 
financial statements, and to report its findings to the company’s shareholders.  The Brazilian Corporate Law requires fiscal committee members to receive as remuneration 
at least 10% of the average annual amount paid to a company’s executive officers.  The Brazilian Corporate Law requires a fiscal committee to be composed of a minimum 
of three and a maximum of five members and their respective alternates.

Under the Brazilian Corporate Law, the fiscal committee may not contain members that (i) are on our board of directors, (ii) are on the board of executive officers, 

(iii) are employed by us or a controlled company, or (iv) are spouses or relatives of any member of our management, up to the third degree.

Our fiscal committee consists of five members and five alternates and the members meet once a month.

Audit Committee

NYSE rules require that listed companies have an audit committee that (i) is composed of a minimum of three independent directors who are all financially literate, 
(ii) meets the SEC rules regarding audit committees for listed companies, (iii) has at least one member who has accounting or financial management expertise and (iv) is 
governed by a written charter addressing the committee’s required purpose and detailing its required responsibilities.  However, as a foreign private issuer, we need only to 
comply  with  the  requirement  that  the  audit  committee  meet  the  SEC  rules  regarding  audit  committees  for  listed  companies  to  the  extent  compatible  with  Brazilian 
Corporate  Law.   Our  audit  committee,  which  is  not  equivalent  to,  or  comparable  with,  a  U.S. audit  committee,  provides  assistance  to  our  board  of  directors  on  matters 
involving accounting, internal controls, financial reporting and compliance.  The audit committee recommends the appointment of our independent auditors to our board of 
directors and reviews the compensation of our independent auditors and helps coordinate their activities.  It also evaluates the effectiveness of our internal financial and 
legal compliance controls.  The audit committee comprises three members elected by the board of directors for a two-year term with the right to re-election, all three of 
which  are  independent.   The  current  members  of  our  audit  committee  are  Jerônimo  Antunes,  Reinaldo  Guerreiro  and  Francisco  Vidal  Luna.   All  members  meet  the 
independent  membership requirements  of  the SEC and NYSE  as well as  other  NYSE requirements.  Jerônimo Antunes is the  committee’s “financial expert” within  the 
scope of the SEC rules covering the disclosure of financial experts on audit committees in periodic filings pursuant to the U.S. Securities Exchange Act of 1934. 

155

Corporate Risks Management Committee

In 2009, our board of executive officers created the Corporate Risks Management Committee with responsibilities to:  i) evaluate the maximum amounts of risk that 
Management should incur in its operations in order to obtain planned results; ii) evaluate the identification, measurement, treatment and processing of risks in action plans; 
iii) forward its statements, proposals and evaluations to the audit committee and to the board of executive officers for review, as well as submit such statements, proposals 
and evaluations to the board of directors for approval.  The Corporate Risks Management Committee has a coordinator and consists of representatives from the following 
management divisions: CEO's Office; Corporate Management; Technology, Enterprises and Environment; Metropolitan; Economics and Finance and Investor Relations; 
and Regional Systems.

Nomination/Corporate Governance and Compensation Committees

NYSE  rules  require  that  listed  companies  have  a  nominating/corporate  governance  committee  and  a  compensation  committee  composed  entirely  of  independent 
directors  and  governed  by  a  written  charter  addressing  the  committee’s  required  purpose  and  detailing  its  required  responsibilities.   Required  responsibilities  for  the 
nominating/corporate governance committee include, among other things, identifying and selecting qualified board member nominees and developing a set of corporate 
governance  principles  applicable  to  the  company.   Required  responsibilities  for  the  compensation  committee  include,  among  other  things,  reviewing  corporate  goals 
relevant to the chief executive officer’s compensation, evaluating the chief executive officer’s performance, approving the chief executive officer’s compensation levels and 
recommending to the board non-chief executive officer compensation, incentive-compensation and equity-based plans.

We are not required under applicable Brazilian law to have a nomination/corporate governance committee or compensation committee.  Under the Brazilian Corporate 
Law, the total amount available for compensation of our directors and executive officers and for profit-sharing payments to our executive officers is established by our 
shareholders at the annual general meeting.  The board of directors is then responsible for determining the individual compensation and profit-sharing of each executive 
officer, as well as the compensation of our board and committee members.  In making such determinations, the board reviews the performance of the executive officers, 
including the performance of our chief executive officer, who typically excuses himself from discussions regarding his performance and compensation.

Shareholder Approval of Equity Compensation Plans

NYSE rules require that shareholders be given the opportunity to vote on all equity compensation plans and material revisions thereto, with limited exceptions.  We do 
not  currently  have  any  equity  compensation  plan.   If  such  a  plan  were  to  be  implemented,  there  is  no  requirement  under  Brazilian  Corporate  Law  for  the  plan  to  be 
approved by our shareholders.  However, if the issuance of new shares in connection with any equity compensation plan exceeded the authorized capital under our bylaws, 
the increase in capital would require shareholder approval.

Corporate Governance Guidelines

NYSE  rules  require  that  listed  companies  adopt  and  disclose  corporate  governance  guidelines.   We  are  in  compliance  with  the  adoption  of  corporate  governance 
provisions and guidelines required under the Novo Mercado Regulations.  Additionally, under the CVM’s guidelines, we have established (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 the BM&FBOVESPA of any purchases or sales of our securities.  We believe the corporate governance guidelines applicable 
to us under the Novo Mercado 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.

156

Code of Business Conduct and Ethics

NYSE rules require that listed companies adopt and disclose a code of business conduct and ethics for directors, officers and employees, and promptly disclose any 
waivers of the code for directors or executive officers.  Applicable Brazilian law does not have a similar requirement.  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 not required under the Brazilian Corporate Law.  
We believe our formal code addresses the matters required to be addressed by the applicable NYSE and SEC rules.

Internal Audit Function

NYSE  rules  require  that  listed  companies  maintain  an  internal  audit  function  to  provide  management  and  the  audit  committee  with  ongoing  assessments  of  the 
company’s risk management processes and system of internal control.  Our internal audit department is under the supervision of our Chief Executive Officer and our audit 
committee and is responsible for our compliance with the requirements of Section 404 of the U.S. Sarbanes Oxley Act of 2002 regarding internal control over financial 
reporting.  Our internal audit department reports to our chief executive officer and the audit committee.

Anticorruption Compliance

Law  No.  12,846,  of  August  1,  2013  (the  “Anticorruption  Law”),  as  further  regulated  by  Decree  No.  8,420/2015,  introduced  the  concept  of  strict  liability  for  legal 
entities involved in harmful acts against the public administration, as defined in the Anticorruption Law, subjecting the violator to penalties both in administrative and civil 
law.  Similar to the Foreign Corrupt Practices Act of the United States, to which we are also subject, the Anticorruption Law considers that an effective implementation of 
Compliance Programs may be used to mitigate the administrative penalties to be applied as a consequence of a harmful act against the public administration.  In 2015, we 
analyzed our current compliance practices and defined action plans based on the analysis of 2014 corporate corruption and fraud risks.

As  a  mixed  capital  company,  our  Compliance  Program  encompasses  two  distinct  situations  –  active  corruption  and  passive  corruption  –  and  follows  the 
recommendations of the Organization for Economic Cooperation and Development, the United Nations Office on Drugs and Crimes, and the World Bank.   Our program 
incorporates and focuses on high management, structural functioning, the provision of complaint hotlines, monitoring of third-party relationships, governance and internal 
controls, risk management, training and communication.

Citizens’ Access to Information at Sabesp

Federal Law No. 12,527/2011 (LAI), regulated by State Decree No. 58.052/2012 and State Decree No. 61.559/2015 determines that government entities must create 
Citizen Information Services – SIC units which receive and manage information requests from the public, and make available to citizens information requested or otherwise 
provided the reasons for denial of such information requests. 

In  order  to  comply  with  LAI,  we  implemented  the  Citizen  Information  Service  -  SIC,  structuring the  internal  flow  of  information  to  serve  citizen  within  the  terms 
provided for by laws and is drafting the Table of documents, data and information, defining restrictive information, protecting business strategic information and pursuing 
the transparent management.  We also made available at our website basic information required by laws and the software to citizens to request information, according to the 
standards of the São Paulo State Government. 

These duties are linked to the Risk Management area whose main assumption is the transparency, quality of information and compliance with strategic rules of a listed 

company. 

H. Mine Safety Disclosure

Not applicable.

157

 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.  See “Index to 

Financial Statements”.

ITEM 19.

EXHIBITS

Item

Description

1.1

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

4.10

4.11

4.12

4.14

4.15

4.16

4.17

11.1

12.1 

12.2 

13.1 

13.2 

By-laws of the Registrant (English translation) (incorporated by reference to the Form 6-K filed on May 03, 2016).

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 DAEE, 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 DAEE, 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 Form 20-F filed on June 28, 2004).

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 Form 6-K filed on February 25, 2008).

Third Amendment to the Agreement, dated December 11, 2001, between the Registrant and the State of São Paulo, dated November 17, 2008. (English translation) (incorporated by 
reference to the Form 6-K filed on December 23, 2008).

Commitment Agreement, between the Registrant and the State of São Paulo, dated March 26, 2008. (English translation) (incorporated by reference to the Form 6-K filed on April 28, 
2008).

Agreement Executed between the Registrant and the São Paulo City Government, dated November 14, 2007 (English Translation) (incorporated by reference to the Form 6-K filed on 
March 12, 2008).

Amendment to the Agreement Executed between the Registrant and the São Paulo City government, dated February 10, 2008 (English translation) (incorporated by reference to the 
Form 6-K filed on May 12, 2008).

The Audit Committee Charter dated April 19, 2016 (English translation) (incorporated by reference to the Form 6-K filed on April 21, 2016).

Convention between the State and the city of São Paulo, dated June 23, 2010, with the intermediation and consent of the Registrant and of ARSESP (English translation) (incorporated 
by reference to the Form 6-K filed on July 13, 2010).

Contract to provide public water supply and sewage services, among the Registrant, the State and the city of São Paulo, dated June 23, 2010 (English translation) (incorporated by 
reference to the Form 6-K filed on July 13, 2010).

Term of Agreement between the Registrant, the State of São Paulo and the DAEE, dated March 18, 2015 (English translation) (incorporated by reference to the Form 6-K filed on April 
15, 2015).

Code of Ethics and Conduct dated June 1, 2014 (English translation) (incorporated by reference to the Form 6-K filed on July 24, 2014).

Certification of Jerson Kelman, Chief Executive Officer, pursuant to Section 302 of the Sarbanes Oxley Act of 2002. 

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. 

Certification of Jerson Kelman, Chief Executive Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes Oxley Act of 2002. 

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. 

158

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

SIGNATURES

Date:  May 11, 2016.

By:         /s/ Jerson Kelman                                               

Name:      Jerson Kelman
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

159

Companhia de Saneamento Básico 
do Estado de São Paulo - SABESP

Financial Statements as at December 31, 2015 and 2014
And for the years ended 
December 31, 2015, 2014 and 2013

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM ON
FINANCIAL STATEMENTS

To the Shareholders, Board of Directors and Management of
Companhia de Saneamento Básico do Estado de São Paulo - SABESP
São Paulo - SP

We have audited the accompanying statement of financial position of Companhia de Saneamento Básico do Estado de São Paulo - SABESP 
(the “Company”) as of December 31, 2015 and 2014, and the related statements of income, comprehensive income, changes in equity and cash 
flows for each of the three years in the period ended December 31, 2015. These financial statements are the responsibility of the Company’s 
management. Our responsibility is to express an opinion on these financial statements based on our audits.

We  conducted  our  audits  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board  (United  States).  Those 
standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material 
misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An 
audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall 
financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such financial statements present fairly, in all material respects, the financial position of Companhia de Saneamento Básico do 
Estado de São Paulo - SABESP as of December 31, 2015 and 2014, and the results of its operations and its cash flows for each of the three 
years  in  the  period  ended  December  31,  2015,  in  conformity  with  International  Financial  Reporting  Standards  (IFRS),  as  issued  by  the 
International Accounting Standards Board (IASB).

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, 2015, based on the criteria established in Internal Control - Integrated Framework 
(2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated May 11, 2016 expressed an 
adverse opinion on the Company’s internal control over financial reporting.

/s/ Deloitte Touche Tohmatsu Auditores Independentes

São Paulo, Brazil
May 11, 2016

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Statement of Financial Position as of December 31, 2015 and 2014
Amounts in thousands of reais

Assets
Current assets

Cash and cash equivalents
Trade receivables
Accounts receivable from related parties
Inventories

Restricted cash
Recoverable taxes
Otherreceivables

Total current assets

Noncurrent assets
Tradereceivables
Accounts receivable from related parties
Escrowdeposits

Deferred income tax and social contribution
Water National Agency – ANA
Otherreceivables

Investments
Investment properties
Intangible assets
Property, plant and equipment

Total noncurrent assets

Total assets

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

F-3

Note

7
9 (a)
10 (a)

8
17 (a)

9 (a)
10 (a)

18
11

12
13
14
15

December 31, 
2015

December 31, 
2014

1,639,214
1,326,972
156,155

64,066
29,156
77,828
156,942

1,722,991
1,034,820
121,965

66,487
19,750
148,768
100,664

3,450,333

3,215,445

182,616
715,952

76,663
128,242
88,368

140,676

189,458
102,018

69,488
209,478
122,634

87,286

28,105
56,957
28,513,626
325,076

21,223
54,039
25,979,526
304,845

30,256,281
33,706,614

27,139,995
30,355,440

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Statement of Financial Position as of December 31, 2015 and 2014
Amounts in thousands of reais

Liabilities and equity
Current liabilities

Trade payables and contractors
Current portion of long-term borrowings and financing
Accrued payroll and related taxes

Taxes and contributions
Interest on capital
Provisions
Services payable
Public-Private Partnership – PPP
Program Contract Commitments
Otherliabilities

Total current liabilities

Noncurrent liabilities

Borrowings and financing
Deferred Cofins and PASEP

Provisions
Pension obligations
Public-Private Partnership – PPP
Program Contract Commitments
Otherliabilities

Total noncurrent liabilities

Total liabilities

Equity

Capital stock

Earnings reserves

Other comprehensive income

Total equity

Total equity and liabilities
The accompanying notes are an integral part of these financial statements.

F-4

Note

December 31, 2015

December 31, 
2014

16

17 (b)
22 (c)
19 (a)
21
14 (h)
14 (d) (iv)

16

19 (a)
20 (b)
14 (h)
14 (d) (iv)

22

248,158
1,526,262

347,976
107,295
127,441
631,890
387,279
33,255
228,659
102,101

323,513
1,207,126

387,971
74,138
214,523
625,092
318,973
38,047
189,551
101,642

3,740,316

3,480,576

11,595,338

132,921
450,324
2,832,216
1,001,778
92,055
145,060

9,578,641

129,351
595,255
2,729,598
330,236
18,208
189,172

16,249,692

13,570,461

19,990,008

17,051,037

10,000,000

10,000,000

4,069,988
(353,382)

13,716,606
33,706,614

3,694,151
(389,748)

13,304,403
30,355,440

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Statement of income for the 
Years ended December 31, 2015, 2014 and 2013
Amounts in thousands of reais, unless otherwise indicated

Net operating income
Operating cost

Gross profit

Sellingexpenses
Administrative income (expenses) 

Other operating income (expenses), net
Equity results

Profit from operations before finance income (expenses)

Financial expenses
Financialrevenues
Exchangeresult, net

Financial expenses, net

Note

2015

2014

2013

25 (b)
26

11,711,569
(8,260,763)

11,213,216
(7,635,599)

11,315,567
(6,816,263)

26
26
28
12

27
27
27

3,450,806

3,577,617

4,499,304

(598,125)
44,958
143,755
2,597

(736,608)
(924,359)
(3,488)
(2,453)

(637,103)
(729,117)
3,296
2,465

3,043,991

1,910,709

3,138,845

(859,732)
395,234
(1,991,964)

(712,293)
422,732
(346,305)

(602,910)
386,110
(266,446)

(2,456,462)

(635,866)

(483,246)

Profit before income tax and social contribution

587,529

1,274,843

2,655,599

Income tax and social contribution
Current

Deferred

Profit for the year

Earnings per share - basic and diluted (in reais)

18 (d)
18 (d)

23

(1,226)
(50,024)

(51,250)
536,279

0,78

(437,417)
65,557

(371,860)
902,983

1,32

(742,578)
10,538

(732,040)
1,923,559

2,81

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

F-5

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Statement of Comprehensive Income for the 
Years ended December 31, 2015, 2014 and 2013
Amounts in thousands of reais

Profit for the year

Othercomprehensiveincome

Note

2015

536,279

2014

902,983

2013

1,923,559

36,366

(256,217)

325,284

Items which will not be subsequently reclassified to the income statement:

Actuarial gains and (losses) on defined benefit plans

20 (b)

36,366

(256,217)

325,284

Total comprehensive income for the year

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

F-6

572,645

646,766

2,248,843

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Statement of Changes in Equity for the 
Years ended December 31, 2015, 2014 and 2013
Amounts in thousands of reais, unless otherwise indicated

Balances as of December 31, 2012

6,203,688

124,255

616,814

4,690,619

80,201

-

(458,815)

11,256,762

Note

Capital 
stock

Capital 
reserve 

Legal 
reserve 

Investment 
reserve

Additional 
dividends 
proposed

Retained 
earnings 

Other 
Comprehensive 
income

Total

Earnings reserve

Net income for the year

Actuarial gains (losses) 

Total comprehensive income for the year

Legal reserve

Interest on capital (R$0.6684 per share)
2012  additional  proposed  dividend,  approved  (R$1.99  per 
share)

Additional proposed dividends
Withholding  income  tax  on  interest  on  capital  attributable 
as minimum mandatory dividends

Transfer to investments reserve

Balances as of December 31, 2013

Net income for the year

Actuarial gains (losses) 

Total comprehensive income for the year

Legal reserve

Interest on capital (R$0.3138 per share)
2013 additional proposed dividend, approved (R$0.1180 per 
share)

Additional proposed dividends

Withholding income tax on interest on capital attributable 
as minimum mandatory dividends

Capitalization of reserves

Transfer to investments reserve

Balances as of December 31, 2014

Net income for the year

Actuarial gains (losses) 

Total comprehensive income for the year

Legal reserve

Interest on capital (R$0.1863 per share)
2014 additional proposed dividend, approved (R$0.0554 
per share)

Additional proposed dividends

Withholding income tax on interest on capital attributable 
as minimum mandatory dividends

Transfer to investments reserve

Balances as of December 31, 2015

20 (b)

22 (e)

22 (c)

22 (c)

20 (b)

22 (e)

22 (c)

22 (c)

20 (b)

22 (e)

22 (c)

22 (c)

1,923,559

-

1,923,559

-

325,284

325,284

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

96,178

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

1,923,559

(96,178)

(456,845)

(80,201)

-

80,620

(80,620)

(37,758)

-

1,289,916

-

(1,289,916)

325,284

2,248,843

-

-

-

-

-

-

-

(456,845)

(80,201)

-

(37,758)

-

6,203,688

124,255

712,992

5,980,535

42,862

-

(133,531)

12,930,801

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

3,796,312

(124,255)

-

10,000,000

-

-

-

-

-

-

-

-

-

10,000,000

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

45,149

-

-

-

-

-

-

-

-

-

-

-

-

-

-

(3,672,057)

605,530

-

-

-

-

-

(42,862)

37,846

(15,844)

-

-

902,983

-

902,983

-

(256,217)

(256,217)

902,983

(45,149)

(214,458)

-

(37,846)

-

-

(605,530)

(256,217)

646,766

-

-

-

-

-

-

-

-

(214,458)

(42,862)

-

(15,844)

-

-

758,141

2,914,008

22,002

-

(389,748)

13,304,403

-

-

-

26,814

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

(22,002)

22,527

536,279

-

536,279

(26,814)

(127,366)

-

(22,527)

(11,074)

-

359,572

-

(359,572)

-

36,366

36,366

-

-

-

-

-

-

536,279

36,366

572,645

-

(127,366)

(22,002)

-

(11,074)

-

784,955

3,273,580

11,453

-

(353,382)

13,716,606

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

F-7

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Statement of Cash Flows for the
Years ended December 31, 2015, 2014 and 2013
Amounts in thousands of reais

Cash flow from operating activities
Profit before income tax and social contribution

Adjustments for:
Depreciation and amortization
Residual value of property, plant and equipment and intangible assets written off
Allowance for doubtful accounts
Provisions and inflation adjustment
Interest calculated on borrowings and financing payable

Inflation adjustment and exchange gains (losses) on borrowings and financing
Interest and inflation adjustment on liabilities
Interest and inflation adjustment on assets
Finance charges from customers
Margin of fair value on intangible assets arising from concession
Provision for Consent Decree (TAC)
Equity results
Provision from São Paulo agreement
Provision for pension plan – SABESPREV MAIS
Pension obligations
Other adjustments
GESP agreement

Changes in assets
Trade receivables
Accounts receivable from related parties
Inventories
Recoverabletaxes
Escrow deposits
Other receivables

Changes inliabilities
Trade payables and contractors
Services received
Accrued payroll and related taxes
Taxes and contributions payable
Deferred Cofins/Pasep
Provisions
Pension obligations
Other liabilities
Cash generated from operations

Interest paid
Income tax and social contribution paid
Net cash generated from operating activities

Cash flows from investing activities
Acquisition ofintangibles
Restrictedcash
Investment increase
Purchases of property, plant and equipment
Dividends received
Net cash used in investing activities

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

F-8

December 31, 2015

December 31, 2014

December 31, 2013

587,529

1,274,843

2,655,599

1,074,032
52,040
2,420
(4,706)
474,056

2,163,754
27,168
(130,762)
(125,966)
(72,908)
(15,601)
(2,597)
11,252
8,349
352,710
(6,103)
(696,283)

1,004,471
48,248
139,589
236,122
379,489

443,414
17,900
(36,227)
(195,948)
(62,520)
52,008
2,453
(23,306)
8,395
289,294
43,543
-

3,698,384

3,621,768

(111,738)
(2,818)
(550)
70,940
35,083
(9,785)

(18,314)
57,054
(24,394)
35,947
3,570
(133,427)
(182,514)
(47,607)
3,369,831

(710,688)
(17,743)
2,641,400

(2,397,352)
(9,406)
(2,540)
(54,794)
4,612
(2,459,480)

363,343
42,670
(8,699)
(148,578)
4,528
(47,590)

(85)
19,071
21,037
28,383
(498)
(196,157)
(172,820)
(6,946)
3,519,427

(603,563)
(435,612)
2,480,252

(2,658,857)
(9,417)
(16)
(89,451)
-
(2,757,741)

871,073
28,498
103,864
202,730
390,039

340,492
18,401
(7,671)
(234,138)
(50,248)
22,518
(2,465)
3,168
9,167
260,003
(33,576)
-
4,577,454

(11,515)
5,586
(6,133)
31,016
(1,669)
(13,868)

(15,454)
(65,883)
47,594
(146,664)
6,118
(211,502)
(158,442)
(59,211)
3,977,427

(533,362)
(666,883)
2,777,182

(2,305,031)
54,644
(369)
(30,743)
-
(2,281,499)

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Statement of Cash Flows for the 
Years ended December 31, 2015, 2014 and 2013
Amounts in thousands of reais       (continued)

Cash flows from financing activities

Borrowings and financing
Proceeds from loans
Payments of loans
Payment of interest on capital
Public-Private Partnership – PPP
Program Contract Commitments
Net cash generated by (used in) financing activities

December 31, 2015

December 31, 2014

December 31, 2013

1,303,296
(1,292,322)
(202,115)
(23,799)
(50,757)

(265,697)

1,258,101
(529,535)
(467,469)
(4,189)
(38,429)

218,479

1,779,529
(1,780,673)
(498.669)
(13,809)
(116,034)

(629,656)

Decrease in cash and cash equivalents

(83,777)

(59,010)

(133,973)

Represented by:
Cash and cash equivalents at beginning of the year
Cash and cash equivalents at end of the year
Decrease in cash and cash equivalents

1,722,991
1,639,214
(83,777)

1,782,001
1,722,991
(59,010)

1,915,974
1,782,001
(133,973)

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

F-9

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated

1              Operations

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

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

As  of  December  31, 2015,  the  Company  operated  water  and  sewage  services in  364 municipalities of  the  State  of São  Paulo. Most  of  these municipalities 
operations are based on 30-year concession, program and services contracts. On August 5, 2015, the Company signed an agreement with the municipality of 
Santa  Isabel,  stipulating  the  beginning  of  operations  for  January  2016;  thus  Santa  Isabel  is  not  included  in  the  aforementioned  364  municipalities.  The 
Company  has  two  contracts  with  the  municipality  of  Mogi  das  Cruzes  to  attend  two  neighborhoods,  however,  since  most  of  municipality  is  serviced  by 
wholesale, it was not included in the 364 municipalities. As of December 31, 2015, the Company had 367 contracts. 

SABESP is not temporarily operating in some municipalities due to judicial orders. The lawsuits in progress refer to Cajobi, Iperó and Macatuba, and the 
carrying  amount  of  these  municipalities'  intangible  assets  was  R$9,574  as  of  December  31,  2015  (R$9,578  as  of  December  31,  2014).  Disclosures  on  the 
respective processes are detailed in Note 19 (c) (vii).

As  of  December  31,  2015,  53  concession  agreements  had  expired  and  are  being  negotiated.  From  2016  to  2030,  36  concession  agreements  will  expire. 
Management  believes  that  concession  agreements  expired  and  not  yet  renewed  will  result  in  new  contracts,  disregarding  the  risk  of  discontinuity  in  the 
provision  of  municipal  water  supply  and  sewage  services.  By  December  31,  2015,  278  program  and  services  contracts  were  signed  (274  contracts  as  of 
December 31, 2014).

As  of  December  31,  2015,  the  carrying  amount  of  the  underlying  assets  used  in  the  53  concessions  of  the  municipalities  under  negotiation  totaled 
R$6,177,433, accounting for 21.66% of total, and the related revenue for the year then ended totaled R$1,589,226 as of December 31, 2015, accounting for 
12.94% of total.

The  Company's  operations  are  concentrated  in  the  municipality  of  São  Paulo,  which  represents  51.79%  of  the  gross  revenues  as  of  December  31,  2015 
(49.42% in December 2014) and 43.37% of intangible assets (42.29% in December 2014).

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

F-10

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

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

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

i. protection of the sources of water in collaboration with other agencies of the State and the City;
ii. capture, transport and treat of water;
iii. collect, transport, treatment and final dispose of sanitary sewage; and
iv. adoption of other actions of basic and environmental sanitation.

The  Company  operates  under  an  authorization  by  public  deed  in  municipalities  in  that  region  and  in  the  Ribeira  valley,  where  the  Company  started  to 
operate after the merger of the companies that formed it. 

In  September  2015,  the  Company  entered  into  a  water  supply  and  sewage  public  utility  services  agreement  with  the  municipality  of  Santos,  where  it 
operated under a public deed of authorization. As of December 31, 2015, the carrying amount of the municipality of Santos’ intangible assets was R$310,693 
(R$205,261 in December 2014) and gross revenue in the year ended December 31, 2015 was R$269,530 (R$231,493 in December 2014).

Article 58 of Law 11,445/07 determines that precarious and overdue concessions, as well as those effective for an undetermined period of time, including 
those  that  do  not  have  an  instrument  formalizing  them,  will  be  valid  until  December  31,  2010,  however,  Article  2  of  Law  12,693 of  July  24,  2012,  which 
amended Article 7°-A of Law 11,578, of November 26, 2007, allows program agreements to be executed until December 31, 2016.

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

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

F-11

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

The Company's shares have been listed in the Novo Mercado (New Market) segment of BM&FBovespa under the ticker symbol SBSP3 since April 2002 and 
on the New York Stock Exchange (NYSE) as American Depositary Receipts (“ADRs”) Level III, under the SBS code, since May 2002.

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

Water shortage in 2014-2015 – the Company’s operations have been influenced by the lowest rainfall and inflow never seen in 85  years, especially at the 
reservoirs composing the Cantareira System which, under usual conditions, is liable for the direct supply of approximately 8.8 million people. During the 
rainy seasons  from October 2013  to March 2014,  and October 2014  to March  2015, rainfall was  well  below average.  This  situation  continued  throughout 
2014 and in most of the months in 2015. In order to deal with this situation and maintain the non-stop supply in 2014 and 2015, the Company has adopted 
several measures since February 2014, such as:

• Using pumps to remove water below the catchment level of the Cantareira System, the so-called  “technical reserve”; 
• Offering financial incentives to reduce consumption through bonus granted to consumers, whose volume consumed is below the average stipulated; 
• Using treated water from other producing systems to serve consumers previously supplied by the Cantareira System; 
• Intensifying the advertising campaigns towards the rational use of water;
• Reducing pressure in the distribution network, in order to prevent water losses; 
• Adjusting the treated water volume sold to municipalities which operate their own distribution networks, due to lower availability;
• Anticipating investments to expand water safety in the Metropolitan Region of São Paulo - RMSP 
• Performing  short-term  emergency  works  to  increase  water  availability  in  the  reservoirs,  improving  and  optimizing  supply  systems  in  the  RMSP, 

thereby lessening the impacts arising from the drought; 

• Installing ultrafiltration membranes which enabled rapid increase in the Guarapiranga and Rio Grande Systems’ water production; and
• Implementing the contingency tariff for consumers whose volume consumed is above the average stipulated.

At the end of September, the 2015 main work was concluded and delivered to contribute to the water supply in the Metropolitan Region of São Paulo. This 
interconnection will enable the transfer of up to 4m³/s of the Rio Grande  Reservoir (Billings) to the Alto Tietê System, bringing more water safety so that 
this system expand to regions previously served only by the Cantareira System. 

F-12

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

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

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



Rearrangement of investments; 

• Expense budget reduction, 
• Negotiation of overdue receivables (until December 31, 2015, the Company included in the State CADIN a total of 33 municipalities with unpaid water 

bills, including those municipalities served by wholesale); 
• Contracting guarantee insurance for escrow deposits; and
• Application of the extraordinary tariff revision outcome since June 2015. 

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

See other disclosures about this matter in the Note 25 – operating revenue.

The financial statements were approved by the Management on May 11, 2016.

2             Basisofpreparationandpresentationofthefinancialstatements

The  financial  statements  of  the  Company  have  been  prepared  pursuant  to  the  International  Financial  Reporting  Standards  –  IFRS,  issued  by  the 
International  Accounting  Standards  Board  –  IASB.  All  material  information  related  to  the  financial  statements,  and  this  information  alone,  is  being 
disclosed and corresponds to the information used by the Company’s Management in its administration.

The financial statements have been prepared under the historical cost except for certain financial instruments, which were measured at fair value according 
to IFRS.

The preparation of financial statements in conformity with IFRS requires the use of certain critical accounting estimates. It also requires Management to 
exercise its judgment in the process of applying the Company's accounting policies. The areas involving a higher degree to judgment or complexity, or areas 
where assumptions and estimates are significant to the financial statements are described in Note 6. 

3             Summary of Significant Accounting Policies

The main accounting policies applied in the preparation of these financial statements are defined below. These policies have been applied consistently in all 
years presented.

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

3.1  Cash and cash equivalents

Cash and cash equivalents include cash in hand, bank deposits, other short-term highly liquid investments with original maturities less than three months as 
of the investment date, with an insignificant risk of changing value, as well as current account overdrafts.

3.2  Financial assets and liabilities

Financial Assets - Classification

The Company classifies its financial assets according to the following categories: measured at fair value through profit or loss, borrowings and receivables, 
held-to-maturity and available for sale. The classification depends on the purpose for which the financial assets were acquired. Management determines the 
classification  of  the  financial  assets  at  inception.  As  of  December  31,  2015  the  Company  held  CTEEP  shares  only,  classified  as  held-for-trading  financial 
assets, which were measured at fair value through profit or loss.  As of December 31, 2014, the Company did not have financial assets classified under the 
fair value through profit or loss, held-to-maturity and available-for-sale financial instruments category.

Borrowings and receivables

These comprise receivables, which are non-derivative financial assets with fixed or determinable payments, not quoted in an active market. Borrowings and 
receivables are presented in current assets, except for those with maturity of more than 12 months after the statement of financial position date (these are 
classified as noncurrent assets). The Company's borrowings and receivables include cash and cash equivalents, restrict cash, balances of trade receivables, 
accounts receivable from related parties, other receivables, receivables from the Water National Agency – ANA. Borrowings and receivables are recorded at 
fair value and subsequently at amortized cost, under the effective interest rate method.

Financial Liabilities - Classification
The Company classifies its financial liabilities into the following categories: measured at fair value through profit or loss and other liabilities. Classification 
depends on the purpose to which the financial liabilities were assumed. As of December 31, 2015 and 2014, the Company did not have liabilities classified 
into the “fair value through profit or loss” category.

Other liabilities

This  category  comprises  balances  payable  to  contractors  and  suppliers,  borrowings  and  financing,  services  payable,  balances  payable  from  public-private 
partnership (PPP), and program contract commitments.

The  effective  interest  rate  method  is  adopted  to  calculate  the  amortized  cost  of  a  financial  liability  and  allocate  its  interest  expense  under  the  respective 
period. The effective interest rate exactly deducts the estimated future cash flows  (including fees, transaction costs  and other issue  costs)  throughout the 
financial liability’s estimated life or, when appropriate, during a shorter period, for initial recognition of the net carrying amount.

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

3.3  Operating income

(a)

Revenue from water and sewage services

Revenue  from  water  supply  and  sewage  collection  are  recognized  as  the  water  is  consumed  and  services  are  provided.  Revenues,  including  the  revenues 
unbilled, are recognized at the fair value of the consideration received or receivable for the sale of those services. Revenue is shown net of value-added tax, 
rebates and discounts. Revenues from unbilled represent incurred revenues in which the services were provided, but not yet billed until the end of the each 
period. Water supply and sewage services are recorded as trade receivables based on monthly estimates of the completed services. Concerning revenues of 
wholesale municipal governments, which do not pay the full invoice, the Company records an allowance for doubtful accounts upon invoicing in revenue 
reduction account.

The  Company  recognizes  revenue  when:  i)  products  are  delivered  or  services  are  rendered;  ii)  the  amount  of  revenue  can  be  reliably  measured,  iii)  it  is 
probable  that  future  economic  benefits  will  flow  to  the  Company  and  iv)  it  is  probable  that  the  amounts  will  be  collected.  The  amount  of  revenue  is  not 
considered  to  be  reliably  measurable  until  all  conditions  relating  to  the  sale  have  been  satisfied.  Amounts  in  dispute  are  recognized  as  revenue  when 
collected.

(b)

Construction revenue

Revenue  from  concession  construction  contracts  is  recognized  in  accordance  with  IAS  11  (Construction  Contracts),  using  the  percentage-of-completion 
method, provided that the applicable conditions for application are fulfilled. The percentage of  completion is calculated from the ratio of the actual costs 
incurred  on  the  balance  sheet  date  to  the  planned  total  costs  (cost-to-cost  method).  Revenue  from  cost  plus  contracts  is  recognized  by  reference  to  the 
construction costs incurred during the period plus a fee earned. The fee represents the additional margin related to the work performed by the Company in 
relation to such construction contracts and it is added to the construction costs incurred and the total is recognized as construction revenue.

3.4  Trade receivables and allowance for doubtful accounts

Trade receivables are amounts due from customers for services performed in the ordinary course of business. These are classified as current assets, except 
when maturity exceeds 12 months after the end of the reporting period. In these cases, they are presented as noncurrent assets. 

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 and current guarantees and it does not expect to incur in additional 
significant losses.

3.5  Inventories

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Inventories of supplies for consumption and maintenance of the water and sewage systems are stated at the lower of average cost of acquisition or realizable 
value, and are classified in current assets. 

3.6  Investment Properties

The investment properties are recorded at the acquisition or construction cost, less accumulated depreciation, except for the land group, calculated by the 
straight-line method at rates that consider the estimated useful life of assets. Expenditures related to repairs and maintenance are recorded in the income 
statement when incurred.

The Company also maintains few assets for indeterminate use in the future, i.e., it is not defined if the Company will use the property in the operation or sell 
the property in the short term during the ordinary course of business.

3.7  Property, plant and equipment

Property,  plant  and  equipment  comprise  mainly  administrative  facilities  not  composing  the  assets,  subject-matter  of  the  concession  agreements.  Those 
assets are stated at historical acquisition or construction cost less depreciation, net of impairment charge, when necessary. Interest, other finance charges 
and  inflationary  effects  deriving  from  financing  effectively  applied  to  construction  in  progress  are  recorded  as  cost  of  respective  property,  plant  and 
equipment.

Subsequent costs included in the asset's carrying amount or recognized as a separate asset, as appropriate, only when it is probable that the future economic 
benefit associated with the item will flow to the Company and the cost of the item can be measured reliably. All other repairs and maintenance are charged 
to the income statement during the financial period in which they were incurred.

Depreciation is calculated using the straight-line method to allocate their cost and is described in Note 15(c). Lands are not depreciated.

Residual values and the useful life of assets are revised and adjusted, where applicable, at the end of each year.

Gain and losses on disposals are determined by the difference between the proceeds with the carrying amount and are recognized  within other operating 
income (expenses) in the income statement.

3.8  Intangible assets

Intangibles  are  stated  at  acquisition  cost  and/or  construction  of  the  underlying  assets,  including  construction  margin,  interest  and  other  finance  charges 
capitalized during the construction period, in this case, for the qualifying assets. Qualifying assets are assets that, necessarily, take a substantial period to get 
ready for its intended use or sale. The Company considers that substantial period means a period greater than 12 months. This period was established by 
considering the completion period of the majority of its constructions, which is greater than 12 months, which corresponds to one fiscal year of SABESP.  

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

The intangible has its amortization initiated when the intangible assets are available for use in location and the necessary condition when this asset becomes 
operational. 

The amortization of intangible assets reflects the period over the expected future economic benefits generated by the intangible asset are consumed by the 
Company and can be the period of the contract or the useful life of the asset.

The amortization of the intangible assets is discontinued when the asset is totally consumed or it is disposed of, whatever occurs first.  

Donations  in  assets  to  the  concession  grantor  received  from  third  parties  and  governmental  entities  to  allow  the  Company  to  render  water  and  sewage 
supply services are not recorded in the Company’s financial statements, since these assets are controlled by the concession grantor.
Financial resources received as donations for the construction of infrastructure are recorded under “Other operating income”.

(a)

Concession arrangements/programs

The  Company  operates  concession  agreements  including  the  rendering  of  basic  sanitation,  environmental,  water  supply  and  sewage  collection  services 
signed  with the  concession  grantor.  The  infrastructure  used  by  SABESP  subject  to  service  concession  arrangements is  considered  to  be  controlled by the 
concession grantor when:

(i)        The grantor controls or regulates what services the operator must provide with the infrastructure, to whom it must provide them, and at what price; and

(ii)       The grantor controls the infrastructure, i.e., retains the right to take back the infrastructure at the end of the concession.

SABESP's rights over infrastructure operated under concession arrangements is accounted for as an intangible asset as SABESP has the right to charge for 
use of the infrastructure assets, and users (consumers) have the primary responsibility to pay SABESP for the services.

The fair value of construction and other work on the infrastructure is recognized as revenue, as its fair value, when the infrastructure is built, provided that 
this  work  is  expected  to  generate  future  economic  benefits.  The  accounting  policy  to  recognize  construction  revenue  is  described  in  Note  3.3  “Operating 
income”.

Intangible assets related to Concession agreements and Program contracts, when there is no right to receive the residual value of the assets at the end of the 
contract, are amortized on a straight-line basis over the period of the contract, or the useful life of the underlying asset, whichever occurs first.

Investments made  and  not  recovered  through rendering  of services,  within the agreement  term,  must  be indemnified by the  concession grantor, (1)  with 
cash or cash equivalents or also, in general (2) with the contract extension. These investments are amortized by the useful life of asset.

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Law  11,445/07  indicates,  whenever  possible,  that  basic  sanitation  public  utilities  will  have  the  economic  and  financial  sustainability  ensured  through  the 
remuneration  due  to  service  collection,  preferably  as  tariffs  and  other  public  prices,  which  may  be  established  for  each  service  or  both  jointly.  Therefore, 
investments made and not recovered through services rendered, within original term of the contract, are recorded as intangible assets and amortized by the 
useful life of the asset, taking into consideration a solid track record of concession renewal and, therefore, the continuity of services.

(b)

 Software licenses

Software licensing is capitalized based on the acquisition costs and other implementation costs. Amortizations are recorded according to the useful lives and 
the expenses associated with maintaining these are recognized as expenses when incurred.

3.9  Impairment of non-financial assets

Property, plant and equipment, intangibles and other noncurrent assets with definite useful lives, are yearly reviewed for impairment whenever events or 
changes  in  circumstances  indicate  that  the  carrying  amount  may  not  be  recoverable.  The  Company  does  not  record  assets  with  indefinite  useful  life  and 
assessed that there are no indications of impairment losses, mainly supported by Law 11,445/07, which ensures that basic sanitation public utilities will have 
assured its economic and financial sustainability through tariffs or via indemnity.

3.10  Trade accounts payable and contractors

Accounts payable to contractors and suppliers are obligations to pay for goods or services purchased from suppliers in the ordinary course of business and 
are classified as current liabilities if the payment is due in the period up to one year. Otherwise, the accounts payable are presented as noncurrent liabilities 
and are initially measured at fair value, which generally correspond to the bill and subsequently at amortized cost.

3.11  Borrowings and financing

Borrowings are initially recognized at fair value, upon receipt of funds, net of transaction costs. Subsequently, borrowings are stated at amortized cost, as 
presented in Note 16. Borrowings and financing are classified as current liabilities unless the Company has an unconditional right to defer settlement of the 
liability for at least 12 months after the end of the reporting period. 

Nonconvertible debentures issued by the Company are recognized in a similar manner to borrowings.

3.12  Borrowing costs

Borrowing costs attributable to acquisition, construction or production of an asset, which, necessarily, requires a substantial time period to be ready for use 
or sale are capitalized as part of the cost of these assets. Other borrowing costs are recognized as expenses in the period they are incurred. Borrowing costs 
are interest rates and other charges incurred by the Company related to loans, including exchange variation, as described below.

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

The capitalization occurs during the period in which the asset has been built, considering the weighted average rate of loans effective on the capitalization 
date.

For foreign currency-denominated loans or financing, the Company analyzes them as if they were contracted in local currency, restricting the capitalization 
of interest and/or exchange variation by the amount that would be capitalized if these were contracted in the domestic market in similar lines of credit and 
loans.

3.13  Payroll and related charges

Salaries include an accrual for vacations and the 13th salary and additional payments negotiated in collective labor agreements plus related charges and are 
recorded on the accrual basis.

3.14  Profit sharing

The Company's profit sharing plan for its employees is based on operational and financial targets of the Company as a whole. The Company recognizes a 
provision  when  it  is  contractually  required  or  when  there  is  a  practice  in  the  past  that  created  a  constructive  obligation.  The  accrual for  profit  sharing  is 
recorded on the accrual basis period as operating expenses and operating cost. 

3.15  Provisions, legal liabilities, escrow deposits and contingent assets

Provisions related to claims are recognized when: i) the Company has a present legal or constructive obligation as a result of past events; ii) it is probable 
that  an  outflow  of  resources  will  be  required  to  settle  the  obligation;  and  iii)  the  amount  can  be  reliably  estimated.  Where  there  are  a  number of similar 
obligations, the likelihood that an outflow will be required in settlement is determined by considering the class of obligations as a whole. 

Provisions are measured at the present value of the disbursements expected to be required to settle the obligation using a pre-tax rate that reflects current 
market assessments of the time value of money and the risks specific to the obligation. The increase in the provision due to passage of time is recognized as 
interest expense.

For financial statement presentation purposes, the provision is stated net of the related escrow deposits based on the legal right to offset. The bases and the 
nature of the provisions for civil, tax, labor and environmental risks are described in Note 19.

Escrow deposits not linked to related liabilities are recorded in noncurrent assets. Escrow deposits are restated for inflation.

Contingent assets are not recognized in the books. 

3.16  Environmental costs

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Costs related to ongoing environmental programs are expensed in the income statement, when there is any indication of an event. Ongoing programs are 
designed to minimize the environmental impact of the operations and to manage the environmental risks inherent to the Company's activities. 

3.17  Income taxes – current and deferred

Income taxes expenses comprise current and deferred income tax and social contributions.

Current tax

The provision for income tax and social contribution is based on the taxable income for the year. The income tax was accrued at rate 15%, plus 10% surtax on 
taxable income exceeding R$ 240. The social contribution was accrued at rate 9% over adjusted net income. Taxable income differs from net income (profit 
presented  in  the  income  statement),  because  it  excludes  income  and  expenses  taxable  or  deductible  in  other  years,  and  excludes  items  not  permanently 
taxable  or  not  deductible.  Income  tax  and  social  contribution  are  accrued  based  on  legislation  in  place  in  the  end  of  the  year.  Management  periodically 
evaluates  and  measures  the  positions  taken  in  the  income  tax  return  with  respect  to  situations  in  which  applicable  tax  regulations  are  subject  to 
interpretation. It establishes provisions where appropriate on the basis of amounts expected to be paid to the tax authorities.

Deferred tax

Deferred  income  tax  is  recognized,  using  the  liability  method,  on  temporary  differences  arising  between  the  tax  basis  of  assets  and  liabilities  and  their 
carrying amounts in the financial statements, according to IAS 12. However, the deferred income tax is not accounted for if it arises from initial recognition 
of  an  asset  or  liability  in  a  transaction  that  at  the  time  of  the  transaction  affects  neither  accounting  nor  taxable  profit  nor  loss,  except  for  business 
combinations.  Deferred  income  tax  is  determined  using  tax  rates  (and  laws)  effective  at  the  end  of  the  reporting  period  and  expected  to  apply  when  the 
related deferred income tax asset is realized or the deferred income tax liability is settled.

Deferred income tax and social contribution assets are recognized only to the extent that it is probable that future taxable profit will be available for which 
temporary differences can be utilized and tax losses can be carryforward.

Deferred taxes assets and liabilities are offset when there is a legally enforceable right of offsetting current tax assets against current tax liabilities and when 
deferred income tax assets and liabilities are related to income taxes levied by same tax authority over the tax entity. 

3.18  Taxes on revenues

Revenues from water and sewage services are recognized on accrual basis for PASEP and Cofins, calculated at the rates of 1.65% and 7.60%, respectively. 
Taxes levied on billed amounts to public entities are due when bills are received.

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

As  these  taxes  are  calculated  by the  non-cumulativeness  regime  and  presented net of  tax  credits, as deductions  from  gross  revenues. Debts measured  on 
“other operating income” are presented as deductions from the respective operating income or expense.

3.19  Pension obligations

(a)         Defined benefit

The  Company  makes  contributions  to  defined  benefit  plans  on  a  contractual  basis  and  sponsored  thereby,  managed  by  Fundação  Sabesp  de  Seguridade 
Social  (“Sabesprev”),  a  supplementary  private  pension  closely-held  entity.  The  regular  contributions  comprise  the  net  administrative  expenses  and  are 
recognized in the income statement for the period.

Liabilities from defined benefit pension plan obligations correspond to the present value of the defined benefit obligation at the end of the reporting period, 
less the fair value of the plan’s assets. The defined benefit obligation (G1) and (G0) are calculated on an annual basis by independent actuaries, using the 
projected  unit  credit  method.  The  estimated  future  cash  outflows  is  discounted  to  its  present  value,  using  the  interest  rates  of  Government  bonds  with 
maturities that approximate the maturity of the related liability.

Referring to actuarial gains and losses deriving from adjustments based on the experience and changes in actuarial assumptions are directly recorded under 
equity,  as  other  comprehensive  income  (OCI),  so  that  the  plan's  net  assets  or  liabilities  are  recognized  in  the  statement  of  financial  position  in  order  to 
reflect the full amount of plan’s deficit or surplus.

The expenses related to pension plan are recognized in profit and loss of the year as operating cost, selling expenses or administrative expenses, according to 
employee’s allocation. 

In  an  event  where  a  curtailment  relates  to  only  some  of  the  employees  covered  by  a  plan,  or  where  only  part  of  an  obligation  is  settled,  the  gain  or  loss 
includes a proportionate share of the past service cost and actuarial gains and losses. The proportionate share is determined on the basis of the present value 
of the obligations before and after the curtailment or settlement.

(b)         Defined contribution

The Company makes contributions to defined contribution plans (Sabesprev Mais) on a contractual basis and sponsored thereby, managed by Sabesprev, a 
supplementary private pension closely-held entity that provides post-employment benefits to its employees.

A  defined  contribution  plan  is  a  pension  plan  according  to  which  the  Company  makes  fixed  contributions  to  a  separate  entity.  The  Company  has  no 
obligation  of  making  contributions  if  the  fund  has  no  sufficient  funds  to  pay  to  all  employees  the  benefits  related  to  employee’s  services  in  current  and 
previous period.

3.20  Financial revenues and expenses

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Financial revenue is primarily comprised of interest, inflation adjustments and exchange rate changes resulting from financial investments, escrow deposits 
and negotiations with customer to pay by installments, using the effective interest rate method.

Financial expenses are primarily comprised of interest, inflation adjustments and exchange rate changes on borrowings and financing, provisions, public-
private  partnership,  program  contract  commitments  and  provisions.  These  financial  income  and  expenses  are  calculated  using  the  effective  interest  rate 
method. 

Inflation  adjustments  and  exchange  gains  and  losses  derive  from  the  collection  or  payment  to  third  parties,  as  contractually  required  by  law  or  court 
decision, and recognized on an accrual basis pro rata temporis.

Inflation  adjustments  included  in  the  agreements  are  not  considered  embedded  derivatives,  since  they  are  deemed  as  inflation  adjustment  rates  for  the 
Company’s economic scenario.

3.21  Leases

Lease agreements  are classified  as  finance  lease when  property,  risks  and  rewards  inherent  to the  ownership  of  asset  to the  lessee are  transferred.  Other 
leases are classified as operational lease, recognized as expenses in the income statement on a straight-line basis during the lease term.

Finance lease agreements are measured based on the lower amount between the present value of minimum mandatory payments of the agreement or the 
fair value of asset on the start date the lease agreement. The amounts payable deriving from considerations of finance lease agreements are recognized and 
allocated between financial expenses and amortization of finance lease payables so that to obtain a constant interest rate. The corresponding lessor’s liability 
is recorded as current and noncurrent debt.

3.22  Other current and noncurrent assets and liabilities

Other assets are stated at cost of acquisition, net of any impairment loss, where applicable. The amounts recognized as other liabilities are stated at known 
or estimated amounts, including, where applicable, related charges and inflation adjustments.

3.23  Dividends and Interest on capital

The Company uses the tax benefits of distributing dividends as interest on capital, as permitted by Brazilian Law. This distribution of dividend is accounted 
for in accordance with Brazilian Law 9249/95 for tax deductibility purposes, limited to the daily pro rata fluctuation of the Long-term Interest Rate (TJLP). 
The benefit attributed to the shareholders is recognized in the current liability against Equity, based on its by-laws. Dividends and interest on capital over 
the minimum established in the by-laws are recognized when approved by the shareholders in the shareholders’ meeting. The tax effects of the interest on 
capital are recognized in the income statement of the year, under the same recognition basis.

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

3.24  Present value adjustment

Current and noncurrent financial assets and liabilities are adjusted to present value based on discount rate at current market rate as of the transaction date, 
when the effects are relevant.

3.25  Segment information

Operating  segments  are  reported  in  a  manner  consistent  with  the  Management  internal  reporting  to  make  strategic  decisions,  allocate  resources  and 
evaluate the operating segment performance.

Based on how the Company treats its business and how decision-making of resources allocation is made, two operating segments (water and sewage) were 
stated for financial reporting purposes, detailed in Note 24.

3.26  Translation into foreign currency

(a)         Functional and reporting currency

Items  included  in  the  financial  statements  are  measured  using  the  currency  of  the  primary  economic  environment  in  which  the  company  operates  ("the 
functional  currency").  The  financial  statements  are  presented  in  Brazilian  reais  (R$),  which  is  also  the  Company's  functional  currency.  All  financial 
information has been stated in reais and rounded to the next thousand, except where otherwise indicated.

(b)         Foreign currency translation

Foreign currency-denominated transactions are translated into Brazilian reais using the exchange rates  prevailing at  the transaction dates. Balance sheet 
accounts are translated by the exchange rate prevailing at balance sheet date. 

Exchange gains and losses resulting from the settlement of these transactions and the translation of foreign currency-denominated cash assets and liabilities 
are recognized in the income statement, except for borrowings and financing referring to property, plant and equipment or intangible assets in progress, 
where exchange losses are recognized as corresponding entry to the asset while construction is in progress, as described in Note 3.12.

4             Changes in accounting practices anddisclosures

4.1  New standards, amendments and interpretations effective for periods beginning on or after January 1, 2015

New standards and revisions

Standard

Key requirements

Effectiveness date

Amendments to IAS 19 – Defined 
Benefit Plans: Employee Contributions

The  amendments  to  IAS  19  clarify  the  accounting  treatment  to  be  given  to 
employee  or  third-party  contributions  in  a  defined  benefit  plan.  In 
accordance  with  the  amendments,  arbitrary  contributions  by  employees  or 
third parties reduce the cost of service by paying these contributions to the 
plan.  When  the  formal  terms  of  the  plan  specify  employee  or  third-party 
contributions,  their  recognition  depends  on  whether  the  contributions  are 
associated with the service. 

January 1, 2015

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Analysis of the impact of the new rules, amendments or interpretations of the rules to the Company:

Amendments to IAS 19 – Defined Benefit Plan: Employee Contribution  

The application of this interpretation did not materially impact reporting or the amounts recognized in the annual financial statements.

4.2 New standards, amendments and interpretations to existing standards that are not yet effective  

The Company did not early adopt the new and revised IFRSs below: 

IFRS 9

IFRS 15

Financial Instruments2

Revenue from Contracts with Customers2

Amendments to IFRS 11 

Accounting for Acquisitions of Interests in Joint Operations 1

IAS 1 

Disclosure Initiative1

Amendments to IAS 16 and IAS 38 

Clarification on Acceptable Depreciation and Amortization Methods1

Amendments to IAS 27 

Equity Valuation Method in Separate Financial Statements1

1 Effective for annual periods beginning on or after January 1, 2016. 
2 Effective for annual periods beginning on or after January 1, 2018.

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

5             Risk Management 

5.1  Financial Risk Management

Financial risk factors

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

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

(a)      Market risk

Foreign currency risk

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

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

This risk arises from the possibility that the Company may incur in losses due to exchange rate fluctuations that would impact liability balances of foreign 
currency-denominated  borrowings  and  financing  raised  in  the  market  and  related  financial  expenses.  The  Company  does  not  maintain  hedge  or  swap 
contracts or any derivative financial instrument to hedge against this risk.

A significant amount of the Company’s financial debt is indexed to the  U.S. dollar and Yen, in the total amount of R$6,640,256 as of December 31, 2015 
(R$4,363,898 in December 2014). Below, the Company’s exposure to exchange risk:

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Borrowings and financing – US$

Borrowings and financing – Yen

Interest and charges from borrowings s and financing – US$

Interest and charges from borrowings and financing – Yen

Total exposure

Borrowing cost– US$

Borrowing cost – Yen

Total foreign currency-denominated loans (Note 16)

December 31, 2015

December 31, 2014

Foreign currency

R$ Foreign currency 

R$

1,242,273

53,906,927

1,231,188

48,066,910

4,850,827

1,748,202

29,813

11,414

6,640,256

(19,786)

(2,646)

6,617,824

3,270,282

1,068,527

17,703

7,386

4,363,898

(15,519)

(2,087)

4,346,292

The 52% increase in foreign currency-denominated debt between December 31, 2014 and December 31, 2015 was mainly due to the following:

1)

2)

Exchange rate changes, due to the 47% increase in the US dollar, from R$2.6562 on December 31, 2014 to R$3.9048 as of December 31, 2015. The 
US dollar-denominated debt account for 73.5% of foreign-currency denominated debts; and
A  12%  increase  in  the  Yen-denominated  debt  and  45.9%  increase  in  the  Yen,  from  R$0.02223  as  of  December  31,  2014  to  R$0.03243  as  of 
December 31, 2015.

As of December 31, 2015, if the Brazilian real had depreciated or appreciated by 10%, in addition to the impacts mentioned above, against the US dollar and 
Yen with all other variables held constant, effects on results before taxes on the year would have been R$664,026 (R$436,390 in December 2014), lower or 
higher, mainly as a result of exchange losses or gains on the translation of foreign currency-denominated loans.

Interest rate risk

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

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

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

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

TR(i)

CDI(ii)

TJLP(iii)

IPCA(iv)

LIBOR(v)

Interest and charges

Total 

December 31, 2015

December 31, 2014

1,498,085

1,617,191

1,114,977

1,623,201

2,926,628

144,546

8,924,628

1,578,250

1,712,010

1,059,074

1,492,320

1,953,989

133,776

7,929,419

(i) TR – Interest Benchmark Rate
(ii)   CDI (Certificado de Depósito Interbancário), an interbank deposit certificate
(iii)  TJLP (Taxa de Juros a Longo Prazo), a long-term interest rate index
(iv)  IPCA (Índice Nacional de Preços ao Consumidor Amplo), a consumer price index
(v)   LIBOR - London Interbank Offered Rate

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

As of December 31, 2015, if interest rates on borrowings and financing had been 1% higher or lower with all other variables held constant, the effects on 
profit for the year before taxes would have been R$89,246 (R$79,294 in December 2014) lower or higher, mainly as a result of a lower or higher interest 
expense on floating rate borrowings and financing.

(b)         Credit risk

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

The maximum exposures to credit risk as of December 31, 2015 are the carrying amounts of instruments classified as cash equivalents, deposits in banks and 
financial institutions, restricted cash, trade receivables and accounts receivable from related parties in the balance sheet date. See additional information in 
Notes 7, 8, 9 and 10. 

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

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Cash at bank and short-term bank deposits

AAA (bra)

Outros (*)

December 31, 2015

December 31, 2014

1,638,589

625

1,639,214

1,722,347

644

1,722,991

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

The available credit rating information of the banks, as at December 31, 2015, in which the Company made deposit transactions and financial investments in 
domestic currency (R$ - domestic rating) during the year is as follows:

Banks

Banco do Brasil S/A

Banco Santander Brasil S/A

Brazilian Federal Savings Bank

Banco Bradesco S/A

Itaú Unibanco Holding S/A

(c)  Liquidity risk 

Fitch

AAA(bra)

AAA(bra)

AAA(bra)

AAA(bra)

AAA(bra)

Moody's

Standard Poor's

Aaa.br

Aaa.br

Aaa.br

Aaa.br

Aaa.br

-

brAA+

brAAA

brAA+

brAA+

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

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

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

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

2016

2017

2018

2019

2020

2021 onwards

Total

As of December 31, 2015

Liabilities

Borrowings and financing

2,030,336

2,016,107

1,809,898

1,870,480

2,605,815

6,308,623

16,641,259

Accounts payable to suppliers and contractors

Services payable

Public-private partnership -PPP (*)

Program contract commitments

248,158

387,279

46,038

238,883

-

-

46,038

37,979

-

-

332,930

27,520

-

-

332,930

27,730

-

-

-

-

248,158

387,279

332,930

5,385,395

6,476,261

834

16,828

349,774

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

Future interest

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

Cross default

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

(d)         Other price risks

The Company is exposed to the price risk of investment in equity instruments of Companhia de Transmissão de Energia Elétrica Paulista – CTEEP, solely 
held for trading purposes in the short term. These shares were received in March 2015 as payment for the 24 initial installments of the GESP Agreement 
(Note 10 (a) (vii)). The balance totaled R$101,500 as of December 31, 2015 and is recorded under “other receivables” in current assets. 

Sensitivity analysis of equity instruments price

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

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

As  of  December  31,  2015,  if  the  equity  instrument  had  appreciated  or  depreciated  by  10%,  compared  to  its  market  value,  with  all  other  variables  held 
constant, the effect on results before taxes on the year would R$10,150, higher or lower. 

5.2 Capital management 

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

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

Total borrowings and financing(Note 16)

(-)Cash and cash equivalents(Note 7)

Net debt

Total equity

Total capital

Leverage ratio

December 31, 2015

December 31, 2014

13,121,600

(1,639,214)

11,482,386

13,716,606

10,785,767

(1,722,991)

9,062,776

13,304,403

25,198,992

22,367,179

46%

41%

As  of  December  31,  2015,  the  leverage  ratio  increased  to  46%  from  the  41%  as  of  December  31,  2014,  due  to  the  increased  balance  of  foreign  currency-
denominated loan and financing as a result of 47% and 45.9% appreciations of the US dollar and the Yen, respectively, in 2015.

5.3 Fair valueestimates

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

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

5.4 Financial instruments

The Company has CTEEP’s shares, which are classified as financial asset held for trading and are recognized at fair value through profit or loss. This is the 
only financial instrument item in this category as of December 31, 2015. The Company’s financial instruments included in the borrowings and receivables 
category  comprise  cash  and  cash  equivalents,  trade  receivables,  balances  with  related  parties,  other  receivables,  and  balances  receivable  from  the  Water 
National Agency – ANA. The financial instruments under the “other liabilities” category comprise accounts payable to contractors and suppliers, borrowings 
and financing, balances payable deriving from the Public Private Partnership-PPP and program contract commitments, which are non-derivative financial 
assets and liabilities with fixed or determinable payments, not quoted in an active market. 

As of December 31, 2015, the Company did not have financial liabilities classified as fair value through profit or loss.

The estimated fair values of financial instruments are as follows:

Financial assets

Cash and cash equivalents

Restricted cash

Tradereceivables

Water National Agency – ANA

Financial assets held for trading (*)

Other receivables 

December 31, 2015

December 31, 2014

Carrying
amount

Fair 
value 

Carrying
amount

Fair 
value 

1,639,214

1,639,214

29,156

29,156

1,509,588

1,509,588

88,368

101,500

196,118

88,368

101,500

196,118

1,722,991

19,750

1,224,278

122,634

-

1,722,991

19,750

1,224,278

122,634

-

187,950

187,950

(*) Amount recorded in “Other receivables” in the current assets.

Additionally, SABESP has financial instrument assets receivables from related parties, in the amount of R$872,107 as of December 31, 2015 (R$223,983 as 
of  December  31,  2014),  which  were  calculated  in  accordance  with  the  conditions  negotiated  between  related  parties.  The  conditions  and  additional 
information referring to these financial instruments are disclosed in Note 10 to the financial statements. Part of this balance, in the amount of R$786,501 
(R$155,493 as of December 31, 2014), refers to reimbursement of additional retirement and pension plan - G0 and is indexed by IPCA plus simple interest 
of  0.5%  p.m.  This  interest  rate  approximates  that  one  practiced  by  federal  government  bonds  (NTN-b)  with  terms  similar  to  those  of  related-party 
transactions.

For  financial  assets  held  for  trading,  the  balance  of  which  is  measured  at  fair  value  at  the  end  of  each  reporting  period  and  recorded  in  the  financial 
statements, SABESP measured such fair value at level 1 inputs, as required by the international financial reporting standards and the accounting practices 
adopted in Brazil, considering share price through quotation at the São Paulo Stock Exchange (Bovespa) as of December 31, 2015.

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Financial liabilities

Borrowings and financing

Trade payables and contractors

Services payable

Program contract commitments

Public-private partnership - PPP

December 31, 2015

December 31, 2014

Carrying
amount

Fair 
value 

Carrying
amount

Fair 
value 

13,121,600

12,625,454

10,785,767

10,641,611

248,158

387,279

320,714

248,158

387,279

320,714

1,035,033

1,035,033

323,513

318,973

207,759

368,283

323,513

318,973

207,759

368,283

To obtain fair value of borrowings and financing, the following criteria have been adopted:

(i) Agreements with Banco do Brasil and CEF (Federal Savings Bank) were projected until final maturity, at contractual rates (projected TR + spread) 

and discounted at present value by TR x DI, both rates were obtained from BM&FBovespa. 

(ii) Debentures were projected up to the final maturity date according to contractual rates (IPCA, DI, TJLP or TR), and discounted to present value considering
the future interest rate published by ANBIMA in the secondary market, or by market equivalent rates, or the Company’s share traded in the Brazilian market. 

(iii) BNDES loans are financial instruments valued at carrying amount plus contractual interest rate until the maturity date, and are indexed by long term

interest rate – TJLP. 

These financing have specific characteristics and the conditions defined in the financing agreements with BNDES between independent parties, and 
reflect  the  conditions  for  those  types  of  loan.  In  Brazil,  a  consolidated  market  of  long-term  debts  does  not  exist  with  the  same  characteristics  of 
BNDES financing, the offering of credit to the entities in general, with this long-term characteristic, usually is restricted to BNDES.

(iv) Other financing in local currency are considered by carrying amount plus contractual interest rate till mature date, discounted to present value

considering a future interest rate published by BM&FBovespa.

(v) Agreements with BID and IBRD, were projected until final maturity in origin currency, applying interest rates contracted, discounted at present 
value at Libor futures rate, obtained from Bloomberg. Eurobonds were priced at market value through quotes published by Bloomberg. All the
amounts obtained were translated into Brazilian reais at the exchange rate of December 31, 2015. 

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

(vi) Agreements with JICA, were projected until final maturity in origin currency, using interest rates contracted and discounted at present value, at Tibor

futures rate obtained from Bloomberg. The amounts obtained were translated into Brazilian reais at the exchange rate of December 31, 2015. 

(vii) Leases are financial instruments considered by face value restated until maturity date, whose characteristic is the indexation by fixed contractual rate,
which is a specific type, not compared to any other market rate.  Thus, the Company discloses as market capitalization, the amount recorded as of
December 31, 2015.

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

6             Key accounting estimates andjudgments

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

The Company makes estimates and assumptions concerning the future. The resulting accounting estimates, by definition, may differ from actual results. The 
estimates  and  assumptions  that  have  a  significant  risk  of  causing  material  adjustment  to  the  carrying  amounts  of  assets  and  liabilities  within  the  next 
financial year are addressed below:

(a)

Allowance for doubtful accounts

The Company records allowance for doubtful accounts in an amount that Management considers sufficient to cover probable losses, based on an analysis of 
trade receivables, in accordance with the accounting policy stated in Note 3.4.

The methodology for determining the allowance for doubtful accounts receivable requires significant estimates, considering a number of factors including 
historical receipt experience, current economic trends, estimates of forecast write-offs, the aging of the accounts receivable portfolio. While the Company 
believes that the estimates used are reasonable, actual results could differ from those estimates.

(b)

Intangible assets arising from concession and program contracts

The Company recognizes as intangible assets arising from concession agreements. The Company estimates the fair value of construction and other work on 
the infrastructure to recognize the cost of the intangible asset, which is recognized when the infrastructure is built and provided that it will generate future 
economic benefits. The great majority of the Company's contracts for service concession arrangements entered with each grantor is under service concession 
agreements  in  which  the  Company  has  the  right  to  receive,  at  the  end  of  the  contract,  a  payment  equivalent  to  the  unamortized  asset  balance  of  the 
concession  intangible  asset,  which  in  this  case,  are  amortized  over  the  useful  life  of  the  underlying  physical  assets,  thus  at  the  end  of  the  contract,  the 
remaining value of the intangible would be equal to the residual value of the related fixed asset.

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Concession intangible assets under Concession agreements and Program contracts, in which, at the end of the contract, the Company has no right to receive 
a payment equivalent to the unamortized asset balance of the concession intangible, are amortized on a straight-line basis over the useful life of asset or 
contract period, which occurs first. Additional information on the accounting for intangible assets arising from concession agreements is described in Note 
3.8.

The  recognition  of  fair  value  for  the  intangible  assets  arising  on  concession  agreements  is subject  to  assumptions  and  estimates,  and  the  use  of  different 
assumptions  could  affect  the  balances  recorded.  Different  assumptions  and  estimates  and  changes  in  the  useful  lives  of  the  intangible  assets  may  have 
relevant impacts on the results of operations. 

(c)

Provisions 

The Company is party to a number of legal proceedings involving significant claims. These legal proceedings include, but are not limited to, tax, labor, civil, 
environmental, disputes with customers and suppliers. The Company accrues for lawsuits to which it is probable that an outflow will be necessary to settle the 
liability and the amount of such loss can be reasonably estimated. Judgments regarding future events may differ significantly from actual estimates and could 
exceed the amounts provisioned. Provisions are revised and adjusted to take into consideration changes in circumstances involved. Additional information of 
these legal proceedings is disclosed in Note 19.

(d)

Pension benefits

The Company sponsors the defined benefit plan and the defined contribution plan, as described in Note 20.

The liability recognized in the balance sheet in relation to defined benefit pension plans is the present value of defined benefit obligation on the balance sheet 
date,  less  the  fair  value  of  plan  assets.  The  benefit  obligation  is  calculated  yearly  by  independent  actuaries,  applying  the  projected  credit  unit  method.  The 
present value of defined benefit obligation is determined by discounting the estimated future cash outflows, using interest rates compatible with the market, 
which are denominated in currency in which benefits will be paid and with maturity terms close to those of corresponding pension plan obligation.

(e)

Deferred income tax and social contribution

The  Company  recognizes  and  settles  taxes  on  income  based  on  the  results  of  operations  verified  according  to  the  Brazilian  Corporation  Law,  taking  into 
consideration the provisions of the tax laws. Pursuant to IAS 12, the Company recognizes deferred tax assets and liabilities based on the differences between the 
accounting balances and the tax bases of assets and liabilities. 

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

The Company regularly reviews the recoverability of deferred tax assets and recognizes a provision for impairment if it is probable that these assets will not be 
realized, based on the historic taxable income, in the projection of future taxable income and the estimated period of reversing temporary differences. These 
calculations require the use of estimates and assumptions. The use of different estimates and assumptions could result in provision for impairment of all or a 
significant amount of deferred tax assets.

7             Cash and Cash Equivalents

Cash and banks

Cash equivalents

December 31, 2015 December 31, 2014

77,233

1,561,981

1,639,214

118,226

1,604,765

1,722,991

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

The average yield of financial investments corresponds to 99.24% of CDI in December 2015 (99.68% in December 2014).

8             Restricted cash

Current

Agreement with the São Paulo municipal government (i)

Funds raised with the BNDES (ii)

Brazilian Federal Savings – escrow deposit (iii)

Other

December 31, 2015

December 31, 2014

13,005

7,109

1,433

7,609

29,156

9,176

6,433

2,236

1,905

19,750

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

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

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

(iii) Refers to savings account for receiving escrow deposits regarding lawsuits with final and unappealable decisions in favor of the Company, which are 

blocked as per contractual clause

9             Trade receivables

(a)         Financial position balances

Private sector:

General and special customers (i) (ii)

Agreements (iii)

Government entities:

Municipal

Federal

Agreements (iii)

Wholesale customers – Municipal governments: (iv)

Guarulhos

Mauá

Mogi das Cruzes

Santo André

São Caetano do Sul

Diadema 

Total wholesale customers – Municipal governments

Unbilled supply

Subtotal

Allowance for doubtfulaccounts

Total 

Current

Noncurrent

December 31, 2015

December 31, 
2014

1,044,692

317,871

852,815

291,367

1,362,563

1,144,182

503,309

5,738

207,066

533,984

4,671

192,253

716,113

730,908

810,285

416,749

2,158

857,424

2,057

222,671

776,674

366,515

2,092

787,305

1,779

224,433

2,311,344

2,158,798

427,361

354,678

4,817,381

(3,307,793)

4,388,566

(3,164,288)

1,509,588

1,224,278

1,326,972

182,616

1,034,820

189,458

1,509,588

1,224,278

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

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

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

(iii) Agreements - installment payments of past-due receivables, plus monetary restatement and interest, when provided for in the agreements.

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

Changes in accounts receivable on a wholesale basis are as follows:

Balance at beginning of year

Services provided

Receivables

Balance at the end of the year

F-37

December 31, 2015

December 31, 2014

2,158,798

341,047

(188,501)

1,917,859

375,294

(134,355)

2,311,344

2,158,798

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

(b)         The aging of trade receivables is as follows

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

Over 360days

Total past-due

Total 

December 31, 2015

December 31, 2014

1,195,098

992,800

182,025

123,765

78,089

84,654

80,447

158,182

2,915,121

136,666

93,534

62,276

54,725

96,079

202,024

2,750,462

3,622,283

3,395,766

4,817,381

4,388,566

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

(c)         Allowance for doubtful accounts

Balance at the beginning of the year

Private sector /government entities

Recoveries

Wholesale customers

Net additions for the year

December 31, 2015

December 31, 2014

December 31, 2013

3,164,288

103,231

(177,993)
283,113

2,856,684

130,398

(59,341)
236,679

2,723,408

93,272

(51,654)
218,687

208,351

307,736

260,305

Write-offs in the year referring to accounts receivable

(64,846)

(132)

(127,029)

Balance at the end of the year

3,307,793

3,164,288

2,856,684

F-38

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Reconciliation of provision for losses of income

December 31, 2015

December 31, 2014

December 31, 2013

Losses (write-off)

Provision for state entities (related parties)

Provision for private sector /government entities

Provision for wholesale customers

Recoveries

63,076

3,999

103,231

10,107
(177,993)

52,900

(1,341)

130,398

16,973
(59,341)

63,102
(856)
93,272
-
(51,654) 

Amount recorded as selling expenses 

2,420

139,589

103,864

Wholesale sales losses, amounting to R$273,006, R$219,706 and R$218,687 in 2015, 2014 and 2013, respectively, were also recorded as revenue reduction.

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

(d)         Agreement with the municipality of Santos   

On September 29, 2015, the State of São Paulo, the municipality of Santos and SABESP entered  into a “Water Supply and Sewage Public Utility Services
Agreement” in the municipality of Santos. Under this contract, the State of São Paulo and the municipality of Santos, granted SABESP exclusive rights to 
render services for a 30-year term. 

On  this  same  date,  judicial  settlements  were  signed  related  to  lawsuits  filed  by  SABESP  against  the  municipality  of  Santos,  as  well  as  an  out-of-court 
settlement, both aimed to settle debts owed by the municipality which were overdue up to August 31, 2015. In December 2015, the fair value of these debits 
was  calculated  and  resulted  in  accounts  receivable  of  R$2,281,  later  transferred  to  intangible  assets  due  to  the  settlement  carried  out  to  contract  the 
concession for a 30-year term. 

The Company will transfer amounts to the Municipality to be invested in related services and environmental sanitation in the municipality. The Company 
will  transfer  R$130,000,  in  five  installments,  the  first  totaling  R$25,000,  paid  in  October  2015,  and  the  remaining  four  installments,  of  R$26,250  each, 
adjusted by the IPCA, to be paid annually after July 5, 2016. Additionally, every quarter, the Company will transfer 0.53% of the revenue obtained from the 
services rendered in the Municipality, less PIS-PASEP and COFINS taxes. Semi-annually, the Municipality must provide a report describing the initiatives 
carried out and the actual amounts related to the transfers made.

F-39

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

10           Related-Party Balances andTransactions

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

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

Accounts receivable

Current:

Water and sewage services (i)

Allowance for losses (i)

Reimbursement for retirement and pension benefits paid -

- monthly flow (payments) (ii) and (vi)

- GESP agreement (ii) and (vi)

“Se Liga na Rede” program (l)

Total current

Noncurrent:

Reimbursement from retirement and pension benefits paid (G0):

- GESP agreement – 2008 (ii) e (vi)

- GESP agreement – 2015 (vii)

Total noncurrent

Total receivables from shareholders

Assets:

Water and sewage services

Reimbursement of additional retirement and pension benefits (G0)

“Se Liga na Rede” program (l)

Total

Liabilities:

Interest on capital payable to related parties

Other (h)

F-40

December 31, 2015

December 31, 2014

115,633

(49,332)

20,564

49,985
19,305

156,155

66,646
649,306

715,952

872,107

66,301

786,501
19,305

96,162

(45,333)

9,753

43,722
17,661

121,965

102,018
-

102,018

223,983

50,829

155,493
17,661

872,107

223,983

64,013

2,210

107,784

1,569

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Revenue from water and sewage services

Watersupply

Sewageservices

Payments received from related parties

2015

2014

2013

195,478

162,034

(338,471)

216,816

195,218

(431,607)

239,513

209,585

(453,612)

Receipt of GESP reimbursement referring to Law 4819/58

(121,709)

(112,534)

(110,912)

(i) Water and sewage services

The Company provides water supply and sewage collection services to the São Paulo State Government and other companies related to it in accordance with 
usual market terms and conditions, as considered by management, except for the settlement of credits which can be made according to items (iii), (iv) and 
(v). 

An allowance for losses of amounts past due for more than 360 days has been recorded due to the uncertainty involving these receipts (R$49,332 in 2015 
and R$45,333 in 2014).

(ii)   Reimbursement for pension benefits paid

Refers  to  amounts  of  supplementary  retirement  and  pension  benefits  provided  for  in  State  Law  4819/58  ("Benefits")  paid  by  the  Company  to  former 
employees and pensioners, referred to as Go.

Under the Agreement referred on item (iii) with the São Paulo State Government ("GESP" or the "State"), GESP recognizes its liability from charges arising 
from  the  Benefits,  provided  that  the  payment  criteria  set  forth  by  the  State  Department  of  Personnel  (DDPE),  based  on  legal  guidance  of  the  Legal 
Consultancy of the Department of Finance and of the State Attorney General's Office (PGE).

F-41

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

As discussed on item (vi), during the assessment of the debt due from GESP to the Company there were certain divergences in the calculation and eligibility 
criteria of the benefits paid by the Company on behalf of GESP.

See additional information about the Go plan in Note 20 (b) (iii).

In  January  2004,  the  payments  of  supplement  retirement  and  pension  benefits  were  transferred  to  the  Department  of  Finance  and  would  be  made  in 
accordance  with  the  calculation  criteria  determined  by  the  PGE.  As  a  result  of  a  court decision, the responsibility for making the payments returned to
SABESP, as originally established.

(iii)           GESP Agreement

On December 11, 2001, the Company, the São Paulo State Government (through the State Department of Finance Affairs, currently Department of Finance) 
and the Water and Electricity Department (DAEE), with the intermediation of the State Department of Sanitation and Energy (former Department of Water 
Resources,  Sanitation  and  Construction  Works),  entered  into  the  Obligations,  Payment  Commitment  and  Other  Covenants  Acknowledgement  and 
Consolidation Agreement ("GESP Agreement") for the settlement of outstanding debts between GESP and the Company related to the  provision of water 
supply and sewage services and to the retirement benefits.

In view of the strategic importance of the Taiaçupeba, Jundiaí, Biritiba, Paraitinga and Ponte Nova reservoirs for ensuring and maintaining the Alto Tietê 
water  volume,  the  Company  agreed  to  receive  them  as  partial  repayment  of  the  reimbursement  related  to  the  Benefits.  The  DAEE  would  transfer  the 
reservoirs to the Company, replacing the amount owed by GESP. However, the São Paulo State Public Prosecution Office challenges the legal validity of this 
agreement, and  its  main argument  is the lack of bidding  and the  absence  of a specific  legislative authorization for disposal of DAEE's assets. There  is  an 
unfavorable  decision  to  SABESP  not  yet  unappealable.  The  Company's  legal  advisors  assess  the  risk  of  loss  in  this  lawsuit  as  probable.  See  additional 
information in items (vi) and (vii) below.

(iv)            First Amendment to the GESP Agreement

On  March  22,  2004,  the  Company  and  the  São  Paulo  State  Government  amended  the  terms  of  the  original  GESP  Agreement,  (1)  consolidating  and 
recognizing  the  amounts  due  by  the  São  Paulo  State  Government  for  water  supply  and  sewage  collection  services  provided,  monetarily  adjusted  through 
February 2004; (2) formally authorizing the offset of amounts due by the São Paulo State Government with interest on capital declared by the Company and 
any  other  debt  owed  to  the  São  Paulo  State  Government  as  of  December  31,  2003,  monetarily  adjusted  through  February  2004;  and  (3)  defining  the 
payment conditions of the remaining liabilities of the São Paulo State Government for the receipt of the water supply and sewage services.

(v)                 Second Amendment to the GESP Agreement

On December 28, 2007, the Company and the São Paulo State Government, represented by the Department of Finance, signed the second amendment to
the terms of the original GESP Agreement, agreeing upon the payment in installments of the remaining balance of the First Amendment, amounting to
R$133,709 at November 30, 2007,  to be paid in 60 monthly and consecutive installments of the same amount, beginning on January 2, 2008. In 
December 2012 the last installment was paid. 

F-42

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

The State and SABESP agreed on immediately resuming their compliance with their mutual obligations under new assumptions: (a) implementation of an 
electronic bill 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 case of nonpayment of water and sewage bills.

(vi)            Third Amendment to the GESP Agreement

On November 17, 2008, GESP, SABESP and DAEE signed the third amendment to the GESP Agreement, through which GESP recognized a debt balance 
payable to SABESP totaling R$915,251, monetarily adjusted up to September 2008 in accordance with the fluctuation of the IPCA-IBGE, corresponding to 
the Undisputed Reimbursement, determined by FIPECAFI. SABESP accepted on a provisional basis the reservoirs (see information on item (iii) of this note) 
as  part  of  the  payment  of  the  Undisputed  Reimbursement  and  offered  to  GESP  a  provisional  settlement,  recognizing  a  credit  totaling  R$696,283, 
corresponding to the value of the reservoirs in the Alto Tietê system. The Company did not recognize the reimbursement receivable of R$696,283 related to 
the  reservoirs,  as  it  is  not  virtually  certain  that  will  be  transferred  by  the  State.  In  March  2015,  Sabesp  and  GESP  entered  into  an  agreement  to  pay  the 
amounts  receivable,  totaling  R$696,283  (more  information  in  item  (vii)  of  this  note).  The  remaining  balance  totaling  R$218,967  has  been  paid  in  114 
monthly, consecutive installments, totaling R$1,920 each, including the annual IPCA-IBGE fluctuation, plus interest of 0.5% p.m., the first of which fell due 
on November 25, 2008.

In addition, the third amendment provides for the regularization of the monthly flow of benefits. While SABESP is liable for the flow of monthly payment of 
benefits, the State shall reimburse SABESP based on the criteria identical to those applied when determining the Undisputed Reimbursement. Should there 
be no preventive court decision, the State will assume the flow of monthly payment of benefits portion deemed as undisputed.

(vii)          Agreement with the São Paulo State Government entered into in 2015

On March 18, 2015, the Company, the State of São Paulo and the Department of Water and Electricity (DAEE), and the Sanitation and Water Resources 
Department  as  the  intervening  party,  entered  into  a  Term  of  Agreement  in  the  amount  of  R$1,012,310,  of  which  R$696,283  refer  to  the  principal  of  the 
Undisputed Amount mentioned in item (iii) and R$316,027 corresponding to the inflation adjustment of the principal until February 2015.

The Principal Amount will be paid in 180 installments, as follows:

The  first  24  installments  were  settled  by  immediately  transferring  2,221,000  preferred  shares  issued  by  Companhia  de  Transmissão  de  Energia  Elétrica 
Paulista - CTEEP, totaling R$87,174, based on the share closing on March 17, 2015; and

F-43

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

The amount of R$609,109 is adjusted by IPCA (Extended Consumer Price Index) until the date when payments start and paid in cash, by means of other 156 
monthly installments, beginning on April 5, 2017. When payment starts, installments will be adjusted by IPCA plus simple interest of 0.5% per month. 

Considering  the  lawsuit  which  objects  the  possibility  of  transferring  the  reservoirs  is  pending  final  and  unappealable  court  decision,  the  agreement  also 
provides for the following situations:

If transfer is possible and the Reservoirs are effectively transferred to Sabesp and registered at the  notary’s office, Sabesp will reimburse to the State the 
amounts paid in replacement of Reservoirs (Principal Amount) in 60 monthly installments adjusted by IPCA until the date of payment of each installment; 
and

If the transfer of Reservoirs is not possible, the State will pay to Sabesp, in addition to the Principal Amount, the inflation adjustment credit of R$316,027 in 
60  installments,  starting  these  payments  at  the  end  of  Principal  Amount  installment  payment.  The  amount  will  be  adjusted  by  IPCA  to  the  start  date  of 
payments and, as of this date, IPCA will be incurred plus 0.5% simple interest rates/month over the amount of each installment.

The accounting impacts of the agreement generated a debit of R$696,283 in accounts receivable from related parties and a credit in the same amount in 
administrative expenses on the transaction date.  Due to such transaction, as  of December 31, 2015, the  Company recorded receivables from GESP  in the 
amount of R$649,306, in non-current assets, and CTEEP shares in the amount of R$101,500, under “other receivables” in current assets.

(viii)         Disputed Amount of Benefits

As mentioned before, on November 17, 2008 the Company and the State signed the third amendment to the GESP Agreement, when the reimbursements 
called disputed and undisputed were quantified. The amendment established the efforts to calculate the so-called Disputed Reimbursement of the Benefits. 
Under  the  fourth  clause  of  the  amendment,  the  Disputed  Reimbursement  represents  the  difference  between  the  Undisputable  Reimbursement  and  the 
amount actually paid by the Company as pension benefits and pensioners set out in Law 4,819/58, for which, the Company understands, the State of São 
Paulo is originally liable, but paid by SABESP under a court order.

By entering into the third amendment, the State's Legal Representative (PGE) agreed to reassess the differences that gave rise to the Disputed Amount of 
benefits set out in Law 4,819/58. At the time, the expectation was based on the willingness of the PGE to reanalyze the issue and the implied right of the 
Company to the reimbursement, including based on opinions from outside legal advisors.

However, new opinions issued by the PGE and received on September 4 and 22, 2009 and January 4, 2010, refute the reimbursement of previously defined 
as Disputed Amount. 

Even though the negotiations with the State are still in progress, it is not possible to assure that the Company will recover the disputed receivables without
dispute.

F-44

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

As part of the actions intended to recover the receivables that management considers due by the State, related to discrepancies in the reimbursement of the 
pension benefits paid by the Company, SABESP: (i) on March 24, 2010, reported to the controlling shareholder the official letter approved by the executive 
committee, proposing that the matter be discussed at the São Paulo Stock Exchange (BM&FBovespa) Arbitration Chamber; (ii) in June 2010, presented to 
Department of Finance a proposal to solve the outstanding items, such proposal was not accepted; (iii) on November 9, 2010, filed a judicial action against 
the  State  of  São  Paulo  pleading  the  entire  reimbursement  related  to  employee  benefits  set  out  in  Law  4,819/58  to  finalize  the  discussion  between  the 
Company and GESP. Despite the legal action, the expectation of which is a possible gain, the Company will persist to obtain an agreement with GESP since 
the management believes that it is the better to the Company and to its shareholders than wait until the end of the judicial action.

The Company's Management decided to not recognize the reimbursements which were not considered virtually certain that will be reimbursed by the State. 
As of December 31, 2015 and 2014, the amounts not recorded by the Company, related to the pension benefits paid on behalf of the State by the Company, 
totaled R$855,054 and R$1,479,705, respectively, as disclosed in item 10 (b) below.

As a result, the Company also recognized the obligation related to the pension benefit obligations maintained with the beneficiaries, retirees and pensioners 
of Plan G0. As of December 31, 2015 and 2014, the pension benefit obligations of Plan G0 totaled R$2,166,942 and R$2.053.527, respectively. For detailed 
information on the pension benefit obligations refer to Note 20 (b) (iii).

(b)         Contingent assets - GESP (not recorded)

As mentioned above, as of December 31, 2015 and December 31, 2014, SABESP had contingent assets with GESP, not recorded in assets referring to the 
additional retirement and pension paid (Law 4,819/58), as follows:

Disputed amounts receivable

Undisputed amount referring to the transfer to SABESP of reservoirs at Alto Tietê system (original value)(*)

Total

(*) See Note 10 (a) (vii).

(c)         Use of reservoirs– EMAE   

December 31, 2015

December 31, 2014

855,054

-

855,054

783,422

696,283

1,479,705

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

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

F-45

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

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

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

On April 10, 2014, we issued a Notice to the Market including the information we have been discussing with EMAE about an eventual future agreement. 
However, no adjustment was confirmed and no agreement was executed by either party up to date. 

On April 11, 2016 we were named in legal proceedings commenced by minority shareholders of EMAE against the State of São Paulo. The plaintiffs in these 
proceedings are seeking an order to require the State to stop us from drawing water from the reservoirs without paying compensation to EMAE, and to allow 
EMAE to pump water from the reservoirs for its hydroelectric facility. The plaintiffs in these proceedings allege that the State, in its capacity as controlling 
shareholder of EMAE, has acted unduly to EMAE’s detriment and in favor of our company. 

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

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

(e)         Guarantees

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

(f)

    Personnel assignment agreement among entities related to the State Government

The  Company  has  personnel  assignment  agreements  with  entities  related  to  the  State  Government,  whose  expenses  are  fully  passed  on  and  monetarily 
reimbursed.  In  2015,  the  expenses  related  to  personnel  assigned  by  SABESP  to  other  state  government  entities  amounted  to  R$10,481  (R$9,651  in 
December 2014 and R$12,879 in December 2103).

As  of  December  31,  2015,  expenses  related  to  personnel  assigned  by  other  entities  to  SABESP  totaled  R$342  (R$403  in  December  2014  and  R$695  in 
December 2013).

(g)         Services obtained from state government entities

As of December 31, 2015 and 2014, SABESP had an outstanding amounts payable of R$2,210 and R$1,569, respectively, for services rendered by São Paulo 
State Government entities.

F-46

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

(h)         Non-operating assets

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

(i)                          Sabesprev    

The Company sponsors a private defined benefit pension plan, which is operated and administered by Sabesprev. The net actuarial liability recognized as of 
December 31, 2015 amounted to R$665,274 (R$676,071 in December 2014), according to Note 20 (b).

(j)                          Compensation of Management Key Personnel

- Compensation:

SABESP's compensation policy for the Management and officers is set out according to guidelines of the São Paulo State Government, the CODEC (State 
Capital protection Board), and are based on performance, market competitiveness, or other indicators related to the Company's business, and is subject to 
approval by shareholders at an Annual Shareholders' Meeting.

Officers' compensation is limited to the compensation of the State Governor, the Board of Directors' and the Fiscal Council’s compensation is equivalent to 
30 percent and 20 percent, respectively, of the executive committee' overall compensation, contingent on attendance of at least one monthly meeting.

The  objective  of  the  compensation  policy  is  to  set  a  private  sector  management  paradigm  to  retain  its  staff  and  recruit  competent,  experienced  and 
motivated professionals, considering the level of management efficiency currently required by the Company.

In addition to monthly fee, the members of the Board of Directors, Fiscal Council and the Board of Executive Officers receive annual reward equivalent to a 
monthly  fee,  calculated  on  a  prorated  basis  in  December  of  each  year.  The  purpose  of  this  reward  is  to  correspond  to  the  thirteenth  salary  paid  to  the 
Company’s employees, as officers and directors' relationship with the Company is governed by its bylaws and not the labor code.

Benefits paid only to statutory officers - meal ticket, basket of food staples, medical care, annual paid rest typified as a paid leave of 30 calendar days, and 
payment of a premium equivalent to one third of the monthly fee and bonuses. 

SABESP  pays  bonuses  for  the  purposes  of  compensating  directors,  in  accordance  with  the  guidelines  of  the  São  Paulo  State  government,  as  an  incentive 
policy, as long as the Company records quarterly, semiannual, and yearly profits, and distributes mandatory dividends to shareholders, even if in the form of 
interest on capital. Annual bonuses cannot exceed six times the monthly compensation of the officers/directors or 10 percent of the interest on capital paid 
by the Company, prevailing the shortest amount. 

F-47

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Expenses  related  to  the  compensation  to  the  members  of  its  Board  of  Directors,  Fiscal  Council  and  Board  of  Executive  Officers  amounted  to  R$4,078, 
R$3,749 and R$3,386  for the years ended December 31, 2015, 2014 and 2013, respectively. An additional amount of R$521, related to the bonus program, 
was recorded in 2015 (R$504 in December 2014 and R$566 in December 2013).

(k)         Loan agreement through credit facility

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

The contracts signed with SPEs Águas de Andradina S.A. and Águas de Castilho S.A. were settled. Other agreements signed with Aquapolo Ambiental S.A., 
on March 30, 2012, and Attend Ambiental S.A., on May 9, 2014, remain with the same characteristics, according to the table below:

SPE

Principal disbursed 
amount

Interest balance

Total

Interest rate

Maturity

Attend Ambiental

Aquapolo Ambiental

Aquapolo Ambiental

Total

5,400

5,629

19,000

30,029

1,757

4,710

8,793

15,260

7,157

SELIC + 3.5 % p.a.

(i)

CDI + 1.2% p.a.

04/30/2016 (ii)

CDI + 1.2% p.a.

10/30/2015 (ii)

10,339

27,793

45,289

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

(ii)  The agreement expired on April 30, 2015 was amended, and its maturity was extended to October 30, 2015. The Company and Aquapolo Ambiental 

S/A are renegotiating the payment terms and the maturity of both agreements.

As a result of the renegotiations, the principal, in the amount of R$30,029, and interest, in the amount of R$15,260, that used to be recognized in current 
assets, under “other receivables”, were reclassified to the same group of noncurrent assets until new payment conditions are agreed upon. As of December 
31, 2015, the balance of principal and interest rates of these agreements was R$45,289 (R$40,366 as of December 31, 2014). In 2015, a financial income 
recognized was R$10,123 (R$5,222 in 2014 and R$3,977 in 2013).

(l)                          “Se Liga na Rede” (Connect to the Network Program)

F-48

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

The  State  Government  enacted  the  State  Law  nº  14,687/12,  creating  the  pro-connection  program,  destined  to  financially  subsidize  the  execution  of 
household branches necessary to connect to the sewage collecting networks, in low income households which agreed to adhere to the program. The program 
expenditures, except for indirect costs, construction margin and borrowing costs are financed with 80% of funds deriving from the State Government and 
the remaining 20% invested by SABESP, which is also liable for the execution of works. As of December 31, 2015, the program total amount was R$78,447 
(R$67,576  as  of  December  31,  2014),  R$19,305  (R$17,661  as  of  December  31,  2014)  recorded  in  balances  receivable  from  related  parties,  the  amount  of 
R$34,089 (R$24,862 as of December 31, 2014) recorded in the group of intangible assets and R$25,053 (R$25,053 as of December 31, 2014) reimbursed by 
GESP.

11            Water National Agency- ANA

The  Company  has  agreements  executed  within  the  scope  of  the  Hydrographic  Basin  Depollution  Program  (PRODES),  also  known  as  "Treated  Sewage 
Purchase Program.”

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

When resources are made available, liabilities are recorded until funds are released by ANA. After the evidence of targets stipulated in each contract, the 
revenue  deriving  from  these  funds  is  recognized,  but  if  these  targets  are  not  met,  funds  will  return  to  the  National  Treasury  with  the  appropriate  funds 
earnings.  As  of  December  31,  2015,  the  balances  of  assets  and  liabilities  were  R$88,368  (R$122,634  as  of  December  31,  2014),  and  the  liabilities  are 
recorded under "Other liabilities" of noncurrent liabilities.

12           Investments

The  Company  holds  interest  in  certain  Special  Purpose  Entities  (SPE).  Although  SABESP  has  no  majority  shares  of  its  investees,  the  shareholders’ 
agreement provides for the power of veto in certain management issues, with no ability to use such power of veto in a way to affect returns over investments,
indicating participating shared control (joint venture – IFRS 11).

The Company holds interest valued by the equity accounting in the following investees:

Sesamm

On  August  15,  2008,  the  Company,  together  with  the  companies  OHL  Médio  Ambiente,  Inima  S.A.U.  Unipersonal  ("Inima"),  Técnicas  y  Gestión 
Medioambiental S.A.U. ("TGM") and Estudos Técnicos e Projetos ETEP Ltda. ("ETEP") incorporated the company Serviços de Saneamento de Mogi Mirim 
S.A.  -  SESAMM  for  a  period  of  30  years  from  the  date  the  concession  agreement  with  the  municipality  of  Mogi  Mirim  for  the  purpose  of  providing 
complementary  services  to  the  sewage  diversion  system  and  implementing  and  operating  sewage  treatment  system  in  the  municipality  of  Mogi  Mirim, 
including the disposal of solid waste.

F-49

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Sesamm's capital as of December 31, 2015, totaled R$19,532, and was represented by 19,532,409 registered common shares without a par value. SABESP 
holds 36% of its equity interest and Inima holds another 46% of its equity interest. 

The operations started in June 2012.

Águas de Andradina

On  September  15,  2010,  the  Company,  together  with  the  company  Companhia  de  Águas  do  Brasil  –  Cab  Ambiental  incorporated  the  company  Águas  de 
Andradina S.A., with indefinite term, for the purpose of providing water supply and sewage services to the municipality of Andradina.

The Extraordinary Shareholders’ Meeting held on December 4, 2015, unanimously approved the capital increase in the amount of R$8,466. As of December 
31, 2015, the capital of Águas de Andradina totaled R$11,551, divided into 11,551,089 registered common shares without a par value. SABESP holds 30% of 
its equity interest. The amount of R$12 is recorded under investee’s equity, as advance for future capital increase.

The operations started in October 2010.

Águas de Castilho

On  October  29,  2010,  the  Company,  together  with  the  company  Águas  do  Brasil  –  Cab  Ambiental,  incorporated  the  company  Águas  de  Castilho,  for  the 
purpose of providing water supply and sewage services to the municipality of Castilho. 

As  of December 31, 2015, the  company’s capital  was R$1,620, and  was represented by  1,620,000 registered share without  par value.  SABESP holds 30% 
equity interest.

The operations started in January 2011.

Saneaqua Mairinque

On  June  14,  2010,  the  Company,  together  with  the  company  Odebrecht  Utilities  S/A,  former  Foz  do  Brasil  S.A.,  with  indefinite  term,  for  the  purpose  of 
exploring the water supply and sewage public utilities of the municipality of Mairinque.

As of December 31, 2015, the capital of Saneaqua Mairinque totaled R$2,000, and was represented by 2,000,000 registered common shares without a par 
value. SABESP holds 30% equity interest.

The operations started in October 2010.

F-50

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Attend Ambiental

On  August  23,  2010,  Sabesp,  jointly  with  Companhia  Estre  Ambiental  S.A,  merged  the  company  Attend  Ambiental  S.A,  for  constructing  and  operating  a 
pretreatment of non-domestic effluent station, sludge transportation and related services in the city of São Paulo as well as implement similar structures in 
other areas in Brazil and abroad. 

As of December 31, 2015 the capital totaled R$13,400, and was represented by 13,400,000 registered common shares without par value. SABESP holds 45% 
equity interest. The total of R$11,400, which was recorded under the investee’s shareholders’ equity as advance for future capital increase, was fully paid on 
March 1, 2013.

The operations initiated in December 2014.

Aquapolo Ambiental S/A.

On October 8, 2009, the Company, together with the company Odebrecht Utilities S/A, formerly Foz do Brasil S.A., incorporated the company Aquapolo 
Ambiental  S.A.,  for  the  purpose  of  producing,  providing  and  trading  reused  water  for  Quattor  Química  S.A.,  Quattor  Petroquímica  S.A.,  Quattor 
Participações S.A. and other companies comprising the Petrochemical Complex.

As  of  December  31,  2015,  the  capital  of  Aquapolo  totaled  R$36,412,  and  was  represented  by  42,419,045  registered  common  shares  without  a  par  value. 
SABESP holds 49%of its equity interest.

The operations initiated in October 2012.

Paulista Geradora de Energia

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

As  of  December  31,  2015,  the  capital  stock  of  Paulista  Geradora  de  Energia  was  R$8,679,  and  was  represented  by  8,679,040  registered  common  shares 
without a par value, in which SABESP holds a 25% interest.

As of December 31, 2015, operations had not started yet.

Below is a summary of the investees’ financial statements and SABESP’s equity interest:

Company

Equity 

Provisioned

dividends 

Profit (loss) for the year

2015

2014

2013

2015

2015

2014

2013

Sesamm

Águas de Andradina (i)

Águas de Castilho

Saneaqua Mairinque

Attend Ambiental

Aquapolo Ambiental

Paulista Geradora de Energia

32,313

15,191

3,449

3,560

3,084

11,651

8,509

26,788

4,582

2,866

2,697

(111)

16,220

-

22,884

3,622

2,064

3,102

6,016

19,400

-

F-51

(557)

(228)

(190)

(282)

- 

- 

- 

6,082

2,371

773

1,145

3,195

(4,569)

(114)

3,904

960

802

(405)

(6,127)

(3,180)

- 

6,885

1,119

484

695

(3,715)

1,976

- 

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Company

Investments

distributed

Equity in the earnings of subsidiaries

Interest percentage

2015

2014

2015

2015

2014

2013

2015

2014

2013

Dividends

Sesamm

Águas de Andradina (i)

Águas de Castilho

Saneaqua Mairinque

Attend Ambiental

Aquapolo Ambiental

Paulista Geradora de Energia

Total

Other investments

Overall total 

11,633

4,558

1,035

1,068

1,388

5,709

2,127

27,518

587

28,105

9,644

1,375

860

809

-

7,948

-

20,636

587

21,223

(201)

(68)

(57)

(85)

-

-

-

(411)

2,190

711

232

344

1,388

(2,239)

(29)

2,597

1,405

288

241

(122)

(2,707)

(1,558)

-

(2,453)

2,479

336

145

209

(1,672)

968

-

2,465

36%

30%

30%

30%

45%

49%

25%

36%

30%

30%

30%

45%

49%

-

36%

30%

30%

30%

45%

49%

-

(i) The Extraordinary Shareholders’ Meeting of December 4, 2015 approved a capital increase in the amount of R$8,466. SABESP contributed 

R$2,540, which corresponds to its percentage interest in the investee.

13           Investmentproperties

As  of  December  31,  2015,  the  balance  of  “Investment  properties”  is  R$56,957  (December  31,  2014  –  R$54,039).  As  of  December  31,  2015  and  2014,  the 
market value of these properties is approximately R$392,000 and R$350,000, respectively.

December 31, 2014

Transfers

Write-offs and 
disposals

Depreciation

December 31, 2015

Investment property

Total

54,039

54,039

9,182

9,182

(5,859)

(5,859)

(405)

(405)

56,957

56,957

F-52

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

There were no changes in 2014.

14           Intangible Assets

(a)         Balance sheet balances 

Intangible right arising from:

Agreements – equity value 

Agreements – economic value 

Program contracts 

Program contracts – commitments 

Services contracts – São Paulo

Software license

Total

(b)         Changes

December 31, 2015

Accumulated 

December 31, 2014

Accumulated 

Cost

amortization

Net

Cost

amortization

Net

8,862,581

(1,574,951)

7,287,630

8,983,492

(1,614,221)

1,819,219

(466,199)

8,660,552

(2,371,977)

986,086

(135,556)

1,353,020

6,288,575

850,530

1,679,042

(397,782)

7,338,985

(1,959,832)

808,662

(105,753)

7,369,271

1,281,260

5,379,153

702,909

14,767,591

(2,400,574)

12,367,017

12,916,939

(1,930,553)

10,986,386

474,294

(107,440)

366,854

326,045

(65,498)

260,547

35,570,323

(7,056,697)

28,513,626

32,053,165

(6,073,639)

25,979,526

December 31, 

Reversal of 

provision for 

December 31, 

2014

Additions Contract renewal

losses

Transfers Write-offs and disposals

Amortization

2015

Intangible assets arising from: 

Agreements – equity value 

7,369,271

574,421

(463,362)

Agreements – economic value 

1,281,260

140,732

-

Program contracts 

5,379,153

663,399

463,362

Program contracts – commitments 

702,909

177,424

Services contracts – São Paulo 

10,986,386

1,900,218

Software license 

Total 

260,547

148,248

25,979,526

3,604,442

-

-

-

-

F-53

747

-

4,459

-

(324)

(17)

(752)

-

(4,303)

(188,820)

7,287,630

(139)

(68,816)

1,353,020

(11,045)

(210,001)

6,288,575

-

(29,803)

850,530

18,879

(4,997)

(30,321)

(503,148)

12,367,017

-

-

-

(41,941)

366,854

24,085

(6,090)

(45,808)

(1,042,529)

28,513,626

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

December 31, 

Contract 

Provision for 

Write-offs and 

December 31, 

2013

Additions

renewal

losses

Transfers

disposals

Amortization

2014

Intangible assets arising from: 

Agreements – equity value 

7,079,790

693,960

(165,093)

(1,598)

(34,011)

(14,542)

(189,235)

7,369,271

Agreements – economic value 

1,186,146

150,647

-

-

(57)

(496)

(54,980)

1,281,260

Program contracts 

4,668,567

878,947

165,093

(2,919)

(122,940)

(9,726)

(197,869)

5,379,153

Program contracts – commitments

613,320

115,632

Services contracts – São Paulo 

10,124,603

1,264,861

Software license 

Total 

173,805

132,734

23,846,231

3,236,781

-

-

-

-

-

-

-

(26,043)

702,909

(30,352)

112,507

(23,162)

(462,071)

10,986,386

-

-

-

(45,992)

260,547

(34,869)

(44,501)

(47,926)

(976,190)

25,979,526

Intangible assets arising from: 

Agreements – equity value 

Agreements – economic value 

Program contracts 

Program contracts – commitments

Services contracts – São Paulo 

Software license 

Total 

December 31, 

Contract 

Write-offs and 

December 31, 

2012

Additions

renewal

Transfers

disposals

Amortization

2013

6,896,194

647,318

(310,844)

(6,690)

(3,458)

(142,730)

7,079,790

1.109,936

126,853

-

82

(86)

(50,639)

1,186,146

3,819,172

733,796

310,844

4,789

(2,390)

(197,644)

4,668,567

571,091

65,040

9,568,487

975,913

2,646

201,399

21,967,526

2,750,319

-

-

-

-

-

177

5,155

3,513

-

(22,811)

613,320

(21,939)

(398,035)

10,124,603

-

(35,395)

173,805

(27,873)

(847,254)

23,846,231

F-54

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

In  2015,  the  Company  formalized  program  contracts  with  the  municipalities  of  Barueri,  Mairiporã  and  Santos,  and  signed  a  program  contract  with  the 
municipality of Santa Isabel, all of them for a 30-year term. In the municipality of Santa Isabel, the operations started in January 2016. 

(c)         Construction services

Construction revenue

Construction cost incurred

Margin

Construction revenue

Construction cost incurred 

Margin

Construction revenue

Construction cost incurred 

Margin

Water supply

Sewage services

2015

2,090,012

2,044,606

45,406

Water

1,204,380

1,181,596

22,784

Water

1,011,412

988,281

23,131

1,246,704

1,219,202

27,502

2014

Sewage

1,713,656

1,673,920

39,736

2013

Sewage

1,433,323

1,406,206

27,117

Total 

3,336,716

3,263,808

72,908

Total 

2,918,036

2,855,516

62,520

Total 

2,444,735

2,394,487

50,248

(d)         Intangible arising from concession agreements

The  Company  operates  concession  agreements  covering  the  provision  of  basic  and  environmental  sanitation  services,  water  supply  and  sewage  services.  These 
concession arrangements set out rights and obligations relative to the exploration of assets related to the public service (See Note 3.8 (a)). A general obligation also 
exists to return the concession infrastructure to the concession grantor in good working condition at the end of the concession.

As  of  December  31,  2015,  the  Company  operated  in  364  municipalities  in  the  State  of  São  Paulo  (364  as  of  December  31,  2014).  In  most  of  these  contracts 
operations are based on 30-year concession period. 

F-55

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

The services provided by the Company are billed at a price regulated and controlled by São Paulo State Sanitation and Energy Regulatory Agency (ARSESP).

Intangible rights arising on concession agreements include:

(i)     Service concession agreements – equity value

These  refer  to  municipalities  assumed  until  2006,  except  for  the  municipalities  assumed  by  economic  value  through  assets  valuation  report  prepared  by 
independent experts. The amortization of assets is calculated according to the straight-line method, which considers the assets useful life.

(ii)                  Concession agreements – economic value

From  1999  through  2006,  the  negotiations  for  new  concessions  were  conducted  on  the  basis  of  the  economic  and  financial  result  of  the  transaction, 
determined in a valuation report issued by independent appraisers.

The  amount  determined  in  the  related  contract,  after  the  transaction  is  closed  with  the  municipal  authorities,  realized  through  the  subscription  of  the 
Company's  shares  or  in  cash,  is  recorded  as  "concession  agreements"  and  amortized  over  the  period  of  the  related  concession  (usually  30  years).  As  of 
December 31, 2015 and 2014 there were no amounts pending related to these payments to the municipalities.

Intangible  assets  are  amortized  on  a  straight  line  basis  over  the  period  of  the  concession  agreements  or  for  the  useful  lives  of  the  underlying  assets, 
whichever is shorter. 

(iii)     Program contracts 

These refer to the renewal of contracts previously referred to as concession agreements whose purpose is to provide sanitation services. The amortization of 
the  assets  acquired  until  the  dates  of  signatures  of  the  program  contracts  is  calculated  according  to  the  straight-line  method,  which  considers  the  assets’ 
useful  lives.  Assets  acquired  or  built  after  the  signature  dates  of  program  contracts  are  amortized  during  the  contracted  period  (30  years)  or  during  the 
useful lives of underlying assets, whichever is shorter.

(iv)     Program contracts - Commitments

After  the  enactment  of  the  regulatory  framework  in  2007,  renewals  of  concessions  started  to  be  made  through  of  program  contracts.  In  some  of  these 
program contracts, the Company undertook the commitment to financially participate in social and environmental actions. The assets built and financial 
commitments assumed within the program contracts are recorded as intangible assets and are amortized by the straight-line method in accordance with the 
duration of the program contract (mostly, 30 years).

In 2015, amortization expenses related to the commitments of the program contract were R$29,803 (R$26,043 in 2014 and R$22,811 in December 2013).

F-56

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

The  amounts  not  yet  disbursed  related  to  commitments  under  the  program  contracts  are  recorded  in  “Program  Contracts  –  Commitments”  in  current 
liabilities  (in  the  amount  of  R$228,659  and  R$189,551  as  of  December  31,  2015  and  2014,  respectively)  and  noncurrent  liabilities  (in  the  amount  of 
R$92,055 and R$18,208 as of December 31, 2015 and 2014, respectively). In 2015, the annual rate of 8.06% was applied (WACC) to calculate the present 
value adjustment of these contracts.

(v)    Services agreement with the Municipality of São Paulo 

On June 23, 2010, the Company entered into an agreement with the State of São Paulo and the Municipality of São Paulo to regulate the provision of water 
and sewage services in the city of São Paulo for a 30-year period, which is extendable for an another 30-year period. 

Also  on  June  23,  2010,  an  agreement  was  signed  between  the  state  and  municipal  government,  and  SABESP  and  the  Sanitation  and  Energy  Regulatory 
Agency of the State of São Paulo (“ARSESP”) are the consenting and intervening parties, whose main aspects are the following:

1. The State and the Municipality of São Paulo grant to Sabesp the right to explore the sanitation service in the capital of the State of São Paulo, which
consists of the obligation to provide such service and charge the respective tariff for this service;

2. The State and the Municipality sets forth ARSESP as the agency responsible for regulating the tariff, controlling and monitoring the services;

3. The evaluation model of the contract was the discounted cash flow, which considered the financial and economic sustainability of SABESP’s operations in
the metropolitan region of São Paulo;

4. All operating costs, taxes, investments and the opportunity cost of investors and the creditors of Sabesp’s were considered in the cash flow analysis;

5. The agreement provides for investments established in the agreement comply with the minimum of 13% of the gross revenue from the municipality of
São Paulo, net of the taxes on revenues. Investment plans referring to Sabesp’s execution shall be compatible with the activities and programs foreseen in
the state, municipal sanitation plans, and where applicable, the metropolitan plan. The investment plan is not definite and will be revised by Managing
Committee every four years, especially as to investments to be made in the following period;

6. The payment related to the Municipal Fund of Environmental Sanitation and Infrastructure to be applied in the sanitation service within the municipality
must be recovered through the tariffs charges. Such payment represents 7.5% of  the total  revenue  from the municipality  of São Paulo,  net of  the taxes on 
revenue and delinquency in the period, recognized in profit or loss, as operating cost;

7. The opportunity cost of the investors and the creditors was established by the Weighted Average Cost of Capital (WACC) methodology. The WACC was the
interest rate used to discount the cash flow of the operation; and

F-57

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

8. The agreement considers the recovery of net assets in operation, preferably evaluated through equity valuation or carrying amount monetarily restated, as 
defined by ARSESP. In addition, the agreement provides for the remuneration of investments to be made by SABESP, so that there is no residual value at the
end of the agreement.

Referring  to  the  recovery  through  tariff,  mentioned  in  item  6  above,  of  transfer  to  the  Municipal  Fund  of  Environmental  Sanitation  and  Infrastructure, 
ARSESP issued in April 2013, the Resolution no. 413, postponing the application of Resolution no. 407 until the conclusion of the tariff revision process, the 
transfer  to  the  bill  of  services  of  amounts  referring  to  the  municipal  charges  which  were  stipulated  in  Resolution  no.  407.  The  postponement  to  apply 
Resolution no. 407 was due to a request by the São Paulo State Government to analyze, among other things, methods to reduce the impact on consumers.

On  April  18,  2014, ARSESP Resolution no. 484  was published with the  final  results of  SABESP’s Tariff  Revision, however, both the  São Paulo Municipal 
Government, through  Official  Letter no.  1,309/14-SGM/GAB  and  the  São Paulo  State  Government  through  a  petition  filed  by  the São  Paulo  State  Office, 
through the Official Letter ATG/Official Letter no. 092/14-CC, requested a postponement of the effects of ARSESP Resolution no. 413, published in the São 
Paulo  State  Official  Gazette  on  March  20,  2013,  until  the  conclusion  of  the  revision  of  the  Agreement  entered  into  between  the  São  Paulo  Municipal 
Government, the São Paulo Statement Government and SABESP.

By means of Resolution 488 of May 7, 2014, ARSESP maintained the suspension of the effectiveness of ARSESP Resolution 407, published on March 22, 
2013, until the results obtained in the revision of the Agreement entered into by the São Paulo Municipal Government, the São Paulo State Government and 
SABESP postponing authorization for the transfer to the bill of the services related to the legally established municipal fees  that, by force of the Program 
Agreements and Water Supply and Sewage Services Agreements, should be included in the Tariff Revision.

The agreement represents 51.77% of the total revenue of the Company as of December 31, 2015, and ensures the judicial and assets security, adequate return 
to shareholders and quality services to its customers.

The municipality of São Paulo and the Company did not conclude an agreement to equalize financial pending issues existing until the signature date of the 
Agreement related to the rendering of water supply and sewage collection services to the real properties of the municipality, reason that, the Company filed a 
suit to collect these accounts, which are accrued for losses.

(e)         Capitalization of interest and other finance charges

In  2015,  the  Company  capitalized  interest  and  inflation  adjustment,  including  related  foreign  currency  exchange  effects  in  concession  intangible  assets, 
within the limits established by the accounting rules, totaling R$466,544 (R$278,265 in 2014 and R$205,012 in 2013), during the period in which assets 
were recorded as works in progress.

F-58

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

(f)                          Construction margin

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

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

Construction margin for 2015, 2014 and 2013 were R$72,908, R$62,520 and R$50,248, respectively.

(g)         Expropriations

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

The  costs  of  these  expropriations are  recorded  as  concession  intangible  assets  after  the  transaction  is  completed. In 2015,  the  total  amount  related  to 
expropriations was R$66,801 (R$13,200 in 2014 and R$61,102 in 2013).

(h)         Public-Private Partnership- PPP

SABESP  carries  out  operations  related  to  the  PPPs  mentioned  below.  These  operations  and  their  respective  obligations  and  guarantees  are  supported  by 
agreements executed according to Law 11,079/04.

Alto Tietê Production System

The Company and the special purpose entity CAB-Sistema Produtor Alto Tietê S/A, formed by Galvão Engenharia
S.A.        and Companhia Águas do Brasil – Cab Ambiental, signed in June 2008 the contract of public-private- partnership of Alto Tietê production system.

The  contract  last  15  years  which  purpose  is  to  expand  the  capacity  of  treated  water  of  Taiaçupeba  from  10  thousand  to  15  thousand  of  liters  per  second, 
whose operation began in October 2011.

As  of  December  31,  2015  and  2014,  the  amounts  recognized  as  intangible  asset  related  to  PPP  were  R$393,275  and  R$404,447,  respectively.  In  2015,  a 
discount rate of 8.20% p.a. was used to calculate the adjustment to present value of the agreement. 

The obligations assumed by the Company as of December 31, 2015 and 2014, are shown in the table below.

F-59

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

On a monthly basis, SABESP assigns funds from tariffs to the SPE CAB Sistema Produtor Alto Tietê S/A, in the amount of R$9,164, corresponding to the 
monthly remuneration. This amount is annually adjusted by the IPC – FIPE and is recorded in a restricted account, pursuant to the contractual operating 
proceeding. Should SABESP comply with its monthly obligations with the SPE, the funds from the restricted account will be released.

The guarantee is effective since the beginning of the operation and will be valid until the conclusion, termination, intervention, annulment or caducity of the 
Administrative  Concession,  or  other  extinction  events  provided  for  in  the  Concession  Agreement  or  in  the  law  applicable  to  administrative  concessions, 
including in the event of bankruptcy or extinction of the SPE.

São Lourenço Production System

SABESP and the special purpose entity Sistema Produtor São Lourenço S/A, composed of Construções e Comércio Camargo Corrêa S/A and Construtora 
Andrade Gutierrez S/A, in August 2013 signed the public-private partnership agreements of the São Lourenço Production System.

The objective of the contract is: a) the construction of a water producing system, mainly consisting of a water pipeline connecting Ibiúna to Barueri, a water 
collection station in Ibiúna, a water treatment station in Vargem Grande Paulista and water reservoirs; and b) the provision of services for a 25-year term, 
aiming at rendering services to operate the dehydration system, drying and final disposal of sludge, maintenance and works of the São Lourenço Production 
System. Works started in April 2014.

Pursuant to the agreement, the works should end in April 2018. However, since these are essential works to guarantee water security, the Company has been 
making efforts to finish them by the end of 2017.

The  estimated  amount  monetarily  restated  through  December  31,  2015  is  approximately  R$7.5  billion.  This  amount  was  calculated  considering  the  early 
startup mentioned above.

After the beginning of the operations, every month SABESP will transfer to the SPE Sistema Produtor São Lourenço S/A funds from tariffs arising from the 
services provided, in the amount of R$24.4 million, equivalent to the monthly remuneration plus interest and charges. The amount above will be annually 
restated by the IPC - FIPE and should be monthly recorded in a restricted account, in accordance with the operating procedures of the agreements. Should 
SABESP perform its monthly obligations with the SPE, the funds from the restricted account will be released.

The guarantee will become effective as of the beginning of the system’s appropriate operation, duly accepted by SABESP, valid until the occurrence of any of 
the following events, whichiever occurs first: (i) the original payment date of the last installment of interest / amortization of the principal taken out by the 
SPE to execute the works; (ii) the end, termination, intervention, annulment, caducity of the Administrative Concession, or other extinction events provided 
for in the Concession Agreement or in the law applicable to administrative concessions, including bankruptcy or extinction of the SPE.

F-60

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

As  of  December  31,  2015  and  2014,  the  carrying  amount  recorded  in  the  Company’s  intangible  assets,  related  to  this  PPP,  amounted  to  R$699.335  and 
R$22,756, respectively. Intangible assets are accounted for based on the physical evolution of the works which, as of December 31, 2015, was approximately 
25%,  with  a  counter-entry  in  the  Private  Public  Partnership  (PPP)  liabilities  account.  In  2015,  a  discount  rate  of  7.80%  p.a.  was  used  to  calculate  the 
adjustment to present value of the agreement.

The obligations assumed by the Company as of December 31, 2015 and 2014 are shown in the table below, and the increase in liabilities and intangible assets 
was due to the progress of the works in 2015.

Current liabilities

December 31, 2015

Noncurrent 
liabilities

Total liabilities

Current liabilities

December 31, 2014

Noncurrent 
liabilities

Total liabilities

Alto Tietê

São Lourenço

33,255
-

319,076
682,702

352,331
682,702

38,047
-

307,991
22,245

346,038
22,245

Total

33,255

1,001,778

1,035,033

38,047

330,236

368,283

(i)                          Works in progress

The amount of R$6,596 million is recorded under intangible assets as works in progress as of December 31, 2015 (R$5,180 million as of December 31, 2014), 
and, in 2015, the major projects are located in the municipalities of São Paulo, Praia Grande and Franca, totaling R$3,449 million (including R$699 million 
from PPP São Lourenço), R$272 million and R$199 million, respectively. 

(j)                          Amortization of intangible assets

The amortization average rate totaled 3.9% as of December 31, 2015, 3.8% as of December 31, 2014 and 3.9% in December 31, 2013.

(k)         Software license of use   

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

F-61

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

Property, Plant and Equipment

(a)         Balance sheet balances

December 31, 2015

Accumulated 

December 31, 2014

Accumulated 

Cost

depreciation

Net 

Cost

depreciation

102,708

79,257

326,598

12,169

18,664

435

539,831

-

(33,366)

(164,380)

(6,477)

(10,246)

(286)

(214,755)

102,708

45,891

162,218

5,692

8,418

149

100,533

74,235

299,921

14,051

16,556

688

-

(31,720)

(152,999)

(6,438)

(9,432)

(550)

325,076

505,984

(201,139)

304,845

Net 

100,533

42,515

146,922

7,613

7,124

138

December 31, 2014

Additions

Transfer

Write-offs and 
disposals

Depreciation

December 31, 2015

100,533

42,515

146,922

7,613

7,124

138

1,032

1,383

51,610

135

634

-

304,845

54,794

1,143

3,347

(8,123)

(1,109)

1,629

21

(3,092)

-

-

(340)

(10)

(23)

-

(373)

-

(1,354)

(27,851)

(937)

(946)

(10)

102,708

45,891

162,218

5,692

8,418

149

(31,098)

325,076

F-62

Land

Buildings

Equipment

Transportation equipment

Furniture and fixtures 

Other

Total

(b)         Changes

Land

Buildings

Equipment

Transportation equipment

Furniture and fixtures 

Other

Total

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

December 31, 2013

Additions

Transfer

Write-offs and 
disposals

Depreciation Depreciation 31, 2014

88,332

23,954

71,833

7,895

6,821

661

199,496

-

28,407

58,002

1,481

1,187

374

89,451

12,201

(8,561)

42,481

(707)

(29)

(884)

44,501

-

-

(280)

-

(39)

(3)

(322)

-

(1,285)

(25,114)

(1,056)

(816)

(10)

100,533

42,515

146,922

7,613

7,124

138

(28,281)

304,845

December 31, 2012

Additions

Transfer Write-offs and disposals

Depreciation Depreciation 31, 2013

88,328

25,561

69,633

6,615

6,187

386

196,710

-

-

24,678

4,096

1,458

511

30,743

4

(133)

(1,358)

(1,795)

(5)

(226)

(3,513)

-

(216)

(350)

-

(59)

-

(625)

-

(1,258)

(20,770)

(1,021)

(760)

(10)

88,332

23,954

71,833

7,895

6,821

661

(23,819)

199,496

Land

Buildings

Equipment

Transportation equipment

Furniture and fixtures 

Other

Total

Land

Buildings

Equipment

Transportation equipment

Furniture and fixtures 

Other

Total

(c)         Depreciation

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

The depreciation average rate was 11.5% in 2015 and 11.4% in 2014 and 2013.

F-63

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements 
Year ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated 

   Borrowings and financing

Borrowings and financing outstanding balance

December 31, 2015

December 31, 2014

Financial institution

Local currency
10th issue debentures

th

12 issue debentures

th

14 issue debentures

th

15 issue debentures

th

16 issue debentures

th

17 issuedebentures

th

18 issue debentures

th

19 issue debentures

20th issue debentures
Brazilian Federal Savings Bank

Brazilian Development Bank - BNDES BAIXADA SANTISTA

Brazilian Development Bank - BNDES PAC

Brazilian Development Bank - BNDES PAC II 9751

Brazilian Development Bank - BNDES PAC II 9752

Brazilian Development Bank - BNDES ONDA LIMPA

Brazilian Development Bank - BNDES TIETÊ III

Leases

Other

Interest and charges

Total in local currency

Current Noncurrent

Total

Current Noncurrent

Total

39,619

45,450

38,519

94,819

-

155,815

385,667

210,961

728,529

-

195,434

431,117

249,480

823,348

38,027

45,450

37,038

94,819

-

498,731

140,144

997,259

1,137,403

3,167

247,683

250,850

-

-

49,491

16,368

10,329

4,264

2,308

22,347

17,725

11,955

649

127,862

498,587

494,500

498,587

494,500

1,014,850

1,064,341

49,104

66,984

31,206

23,660

184,082

265,663

522,940

1,270

-

65,472

77,313

35,470

25,968

206,429

283,388

534,895

1,919

127,862

-

-

-

-

67,085

16,309

10,287

4,068

1,725

20,183

-

8,997

716

125,011

187,352

431,174

239,192

761,497

-

225,379

476,624

276,230

856,316

498,731

1,067,760

1,067,760

202,145

202,145

497,793

497,793

-

-

1,031,438

1,098,523

65,237

76,975

35,318

25,875

186,374

187,420

473,593

1,886

-

81,546

87,262

39,386

27,600

206,557

187,420

482,590

2,602

125,011

625,016

5,878,760

6,503,776

968,446

5,471,029

6,439,475

Borrowings and financing outstanding balance

December 31, 2015

December 31, 2014

Financial institution

Foreign currency

Inter-American Development Bank - BID 713 – US$50,195 thousand (US$75,293 
thousand in December 2014)

Inter-American Development Bank - BID 896 – US$2,778 thousand (US$5,555 
thousand in December 2014)

Inter-American Development Bank - BID 1212 – US$102,781 thousand 
(US$113,059 thousand in December 2014)

Inter-American Development Bank - BID 2202 – US$405,072 thousand 
(US$347,190 thousand in December 2014)

International Bank for Reconstruction and Development - BIRD – US$61,158 
thousand (US$45,860 thousand in December 2014)

JICA 15 – ¥16.134,020 thousand (¥17,286,450 thousand in December 2014)

JICA 18 – ¥14.506.240 thousand (¥15,542,400 thousand in December 2014)

JICA 17 – ¥1.565.564 thousand (¥1,029,992 thousand in December 2014)

JICA 19 – ¥21.701.103 thousand (¥14,208,068 thousand in December 2014)

BID 1983AB – US$130,289 thousand (US$154,231 thousand in December 2014)

Interest and charges

Total in foreign currency

Current Noncurrent

Total

Current Noncurrent

Total

98,001

98,001

196,002

66,664

133,329

199,993

10,848

-

10,848

7,377

7,378

14,755

40,134

361,204

401,338

27,301

273,007

300,308

-

-

1,572,181

1,572,181

238,464

238,464

37,373

33,603

-

-

93,490

41,227

485,853

436,548

50,201

523,226

470,151

50,201

701,978

701,978

409,578

503,068

-

41,227

-

-

-

-

914,189

914,189

121,447

371,655

924,741

121,447

371,655

924,741

25,619

23,034

358,659

384,278

322,166

345,200

-

-

63,596

25,089

22,437

314,526

344,078

-

22,437

314,526

407,674

25,089

901,246

5,716,578

6,617,824

238,680

4,107,612

4,346,292

Eurobonds – US$140,000 thousand (US$140,000 thousand in December 2014)

546,570

-

546,570

Eurobonds – US$350,000 thousand (US$350,000 thousand in December 2014)

-

1,362,570

1,362,570

Total borrowings and financing

1,526,262

11,595,338

13,121,600

1,207,126

9,578,641

10,785,767

Exchange rate as of December 31, 2015 US$3.9048; ¥0.03243 (US$2.6562; ¥0,02223 as of December 31, 2014)

As of December 31, 2015, the Company did not record balances of borrowings and financing raised during the year to mature within 12 months.

F-64

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements
Years ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated

Local currency

Guarantees

Maturity

Annual interest rates

Inflation adjustment

10th issue debentures

12th issue debentures 

14th issue debentures

15th issue debentures 

17th issue debentures 

18th issue debentures 

19th issue debentures 

20th issue debentures 

Brazilian Federal Savings Bank

Brazilian  Development  Bank 

-  BNDES  BAIXADA 

SANTISTA

Brazilian Development Bank - BNDES PAC

Brazilian Development Bank - BNDES PAC II 9751

Brazilian Development Bank - BNDES PAC II 9752

Brazilian Development Bank - BNDES ONDA LIMPA

Brazilian Development Bank - BNDES TIETÊ III

Leases

Other

Own funds

Own funds

Own funds

Own funds

Own funds

Own funds

Own funds

Own funds

Own funds

Own funds

Own funds

Own funds

Own funds

Own funds 

Own funds

2020

2025

2022

TJLP +1.92% (Series 1 and 3) and 9.53% 
(Series 2) 

IPCA (Series 2)

TR + 9.5% 

TJLP +1.92% (Series 1 and 3) and 9.19% 
(Series 2)

IPCA (Series 2)

2019

CDI + 0.99% (Series 1) and 6.2% (Series 2)

IPCA (Series 2)

2023

2024

2017

2019

CDI +0.75 (Series 1) and 4.5% (Series 2) 
and+4.75% (Series 3)

IPCA (Series 2 and 3)

TJLP + 1,92 % (Series 1 and 3) and 8.25% 
(Series 2)

IPCA (Series 2)

CDI + 0.80% to 1.08%

CDI + 3.80%

2015/2037

5% to 9.5%

TR

2019

2023

2027

2027

2025

2028

2035

2.5% + TJLP 

2.15% + TJLP 

1.72%+TJLP 

1.72%+TJLP 

1.92% + TJLP 

1.66% + TJLP 

7.73% to 10.12% 

Own funds

2015/2018

TJLP + 2% (Fehidro) and 12% (Presidente 
Prudente)

F-65

IPC

TR

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements
Years ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated

Foreign currency

Guarantees

Maturity

Annual interest rates

Inflation adjustment

Inter-American Development Bank - BID 713 – 
US$50,195 thousand

Inter-American Development Bank - BID 896 - 
US$2,778 thousand

Inter-American Development Bank - BID 1212 -
US$102,781 thousand 

Inter-American Development Bank - BID 2202 -
US$405,072 thousand 

International Bank for Reconstruction and Development 
- BIRD US$61,158 thousand 

Eurobonds – US$140,000 thousand

Eurobonds – US$350,000 thousand

JICA 15 – ¥16,134,020 thousand 

JICA 18– ¥14,506,240 thousand

JICA 17– ¥1,565,564 thousand

JICA 19– ¥21,701,103 thousand

BID 1983AB – US$130,289 thousand

Government

Government

Government

Government

Government

- 

- 

Government

Government

Government

Government

- 

(*) Rates comprising LIBOR + contractually defined spread.

2017

2016

2025

2035

2034

2016

2020

2029

2029

2035

2037

2023

3.35% (*) 

3.00%

2.58% (*)

1.52% (*) 

0.69% (*)

7.50%

6.25%

1.8% and 2.5%

1.8% and 2.5%

1.2% and 0.01% 

1.7% and 0.01% 

Libor + 1.88% to 2.38% (*)

US$

US$

US$

US$

US$

US$

US$

Yen

Yen

Yen

Yen

US$

F-66

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Notes to the Financial Statements
Years ended December 31, 2015 and 2014
Amounts in thousands of reais, unless otherwise indicated

(i)           Payment schedule – accounting balances as of December 31, 2015

2016

2017

2018

2019

2020

2021

2022 to 2038

TOTAL

DOMESTIC CURRENCY

Debentures

361,717

890,999

864,874

959,914

396,951

Brazilian Federal Savings Bank

BNDES

Leasing 

Other

Interest and other charges

TOTAL IN DOMESTIC CURRENCY

FOREIGN CURRENCY

49,491

73,342

11,955

649

127,862

625,016

54,313

79,251

22,461

732

-

57,932

79,251

23,642

538

-

59,602

79,251

24,924

-

-

61,571

61,572

26,319

-

-

189,131

64,661

61,135

28,274

-

-

417,133

716,771

260,238

397,320

-

-

4,080,719

1,064,341

694,040

534,895

1,919

127,862

1,047,756

1,026,237

1,123,691

546,413

343,201

1,791,462

6,503,776

BID

BIRD

Eurobonds

JICA

BID 1983AB

Interest and other charges

TOTAL IN FOREIGN CURRENCY

Overall total 

148,983

221,384

123,383

-

546,570

70,976

93,490

41,227

-

-

72,348

93,490

-

-

-

73,720

92,502

-

123,383

7,960

123,383

15,921

-

1,362,570

111,762

69,085

-

111,762

66,853

-

123,383

1,316,470

2,180,369

15,921

198,662

238,464

-

111,762

30,037

-

-

1,909,140

1,193,226

1,745,556

57,611

-

503,068

41,227

901,246

387,222

289,605

312,190

1,680,489

281,103

2,765,969

6,617,824

1,526,262

1,434,978

1,315,842

1,435,881

2,226,902

624,304

4,557,431

13,121,600

F-67

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(a)         Debentures

Balance as of December 31, 2015 is stated net of borrowings costs in the amount of R$11,514 (R$8,770 as of December 31, 2014), which will be amortized 
during the same maturity period of each contract.

(i)

Main events

Debentures (20th issue)

On  December  28,  2015,  the  Company  conducted  the  20th  issue  of  unsecured  non-convertible  debentures,  in  a  single  series,  for  tender  offer,  in  the  total 
amount of R$500,000, amount of 50,000 debentures, unit value of R$10, the characteristics of which are the following:

Number

Adjustment

Interest rates

Payment of interest

Amortization

Maturity

Single series

50,000

-

CDI + 3.8% p.a.

Semiannual (June and December)

Annual

December/2018and December/2019

Funds  deriving  from  funding  by  means  of  the  20th  Issue  of  Debentures  will  be  allocated  to  recover  the  Company’s  cash  and  refinance  the  financial 
commitments coming due in the first quarter of 2016.

Debentures (16th issue)

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

(ii)

Covenants

For the outstanding contracts, the Company has the following restrictive clauses “covenants”:

Applicable to the 10th issue, 14th issue and 18th issue:

Financial covenants applicable to the financing agreements entered into with the BNDES, except for agreement no. 08.2.0169.1 (Onda Limpa):

The  financing  agreements  entered  into  with  the  BNDES  specify  two  ranges  in  which  the  Company  needs  to  maintain  its  Adjusted  EBITDA  /  Adjusted 
Financial Expenses, Adjusted Net Debt / Adjusted EBITDA, and Other Onerous Debt / Adjusted EBITDA ratios.  

F-68

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

These agreements also specify a guarantee mechanism in which the Company needs to ensure that a portion of the monthly receivables amount is daily 
recorded in a fiduciary account linked to the BNDES. In this process, every day, after the BNDES notifies the depositary bank that the Company is not in 
default, this portion of the monthly receivables amount is transfered to a Company curent account.

If the Adjusted EBITDA / Adjusted Financial Expenses index is equal to or higher than 3.50, the Adjusted Net Debt / Adjusted EBITDA ratio is equal to or 
lower than 3.00 and the Other Onerous Debt / Adjusted EBITDA ratio is equal to or lower than 1.00, the amount to be recorded in the fiduciary account 
linked to the BNDES is R$170.2 million per month.  

If  one  or  more  ratios  mentioned  above  are  not  achieved  in  at  least  two  quarters,  consecutive  or  not,  within  twelve  months,  but  remain  in  the  following 
range: Adjusted EBITDA / Adjusted Financial Expenses lower than 3.50 and equal to or higher than 2.80, Adjusted Net Debt / Adjusted EBITDA equal to 
or lower than 3.80 and higher than 3.00 and Other Onerous Debt / Adjusted EBITDA equal to or lower than 1.30 and higher than 1.00, the portion of the 
monthly  receivables  that  needs  to  be  recorded  in  the  fiduciary  account  linked  to  the  BNDES  is  automatically  increased  by  20%,  to  R$204.3  million  per 
month.

The covenants clauses are:

A. Maintenance of the following ratios, quarterly calculated and related to accrued amounts over the last 12 months, upon the disclosure of reviewed 

interim financial statements or audited annual financial statements:

 Adjusted EBITDA / Adjusted financial expenses equal to or higher than 3.50;
 Adjusted net debt / Adjusted EBITDA equal to or lower than 3.00;
 Other onerous debt (*) / Adjusted EBITDA equal to or lower than 1.00 

(*)  “Other  Onerous  Debts”  correspond  to  the  sum  of  social  security  liabilities,  health  care  plan,  installment  payment  of  tax  debts  and  installment 
payment of debts with the Electricity supplier.

B. In  case  of  failure  to  comply  with  one  or  more  ratios  specified  in  item  A,  in  two  or  more  quarters,  consecutive  or  not,  within  twelve  months,  the 
Company will be failing to comply with the first range of ratios and the portion of the monthly receivables to be recorded in a fiduciary account linked 
to the BNDES will be automatically increased by 20%, to R$204.3 million per month, if the ratios are maintained in the following range:

 Adjusted EBITDA / Adjusted financial expenses lower than 3.50 and equal to or higher than 2.80;
 Adjusted net debt / adjusted EBITDA equal to or lower than 3.80 and higher than 3.00;
 Other onerous debt / Adjusted EBITDA equal to or lower than 1.30 and higher than 1.00.

C. The failure to achieve one or more than one ratio stipulated in item B, and/or the Company does not comply with the automatic reinforcement of 

guarantee under the terms of item B, the Company will be failing to comply with the covenant terms and the BNDES may, at its sole discretion:

F-69

Companhia de Saneamento Básico do Estado de São Paulo - SABESP





require the creation of additional guarantees, within term to be defined by it through notice; 
suspend the release of funds; and/or 
declare the early maturity of the Financing Agreements and/or the Commitment Agreements for the Subscription of Debentures in Private Issues 
and Other Covenants.

As of December 31, 2015, the amount of R$204.3 million was guaranteed for the agreements above (excluding the guarantee of agreement 08.2.0169.1).

Financial covenants applicable to financing agreement no. 08.2.0169.1 entered into with the BNDES:

 Adjusted EBITDA / adjusted net operating revenue: equal to or higher than 38%; 
 Adjusted EBITDA /adjusted financial expenses: equal to or higher than 2.35;
 Adjusted net debt / adjusted EBITDA: equal to or lower than 3.20.

The BNDES will annually verify if the ratios have been complied with by analyzing the annual audited financial statements, which must be presented to the 
BNDES or published by April 30 of the subsequent year referring to the financial statements. If the Company complies, cumulatively, with the ratios above, 
the BNDES will reduce the interest stipulated in the agreement from 2.15% p.a. to 1.82% p.a., from June 16 of the year when the analysis is carried out to 
June 15 of the subsequent year.

The agreements also have a cross default clause, i.e., the early maturity of any of the Company’s debts, the amount of which may anyhow compromise the 
settlement of its obligations provided for in the Indenture deed shall imply the early maturity of such agreement.

Applicable to the 12th issue:

Calculated every quarter upon the disclosure of interim or annual financial statements:

- Adjusted current ratio (current assets divided by current liabilities, excluding from current liabilities the current portion of noncurrent debts incurred by the

Company that are recorded in current liabilities) higher than 1.0;

- EBITDA to paid financial expenses ratio equal to or higher than 1.5;

-  Disposal  of operating  assets,  extinguishment of  license, loss  of concession  or  loss of Issuer’s capacity  to execute  and  operate  the basic sanitation public 
utilities in areas of the State of São Paulo territory, which considered individually or jointly during the deed’s effectiveness, result in a reduction of net sales 
revenue and/or services revenue of the Issuer exceeding twenty-five percent (25%). The limit established above will be calculated quarterly, taking into 
account the Issuer’s operating income for the twelve (12) months preceding the end of each quarter and applying the financial information disclosed by the 
Issuer; and

F-70

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Noncompliance with these obligations only will be characterized when verified in its interim financial statements, during at least, two consecutive quarters, 
or also two nonconsecutive quarters within a twelve-month period.

In  case  of  noncompliance  with  the  covenants,  the  trustee  should  call  an  extraordinary  debenture  holders'  meeting  within  48  hours  from  the 
acknowledgement of the noncompliance to resolve on the declaration of early maturity of the debentures.

The  agreements have  a  cross  default  clause, i.e.  the  early maturity  of  any  of the  Company’s debts, equal  to  or  exceeding  R$50 million,  adjusted  by  IPCA 
variation  as  of  the  issue  date,  due  to  contractual  default,  the  amount  of  which  may  anyhow  compromise  the  settlement  of  the  Company’s  monetary 
obligations arising from the Issue, shall imply the early maturity of this agreement.

Applicable to the 15th issue, 17th issue, 19th issue and 20th issue:

Calculated every quarter upon the disclosure of interim or annual financial statements:

- Adjusted total Debt/Ebitda: lower than or equal to 3.65;

- Ebitda/Paid financial expenses: equal to or higher than 1.5;

-  Disposal  of operating  assets,  extinguishment of  license, loss  of concession  or  loss of Issuer’s capacity  to execute  and  operate  the basic sanitation public 
utilities in areas of the State of São Paulo territory, which considered individually or jointly during the deed’s effectiveness, result in a reduction of net sales 
revenue and/or services revenue of the Issuer exceeding twenty-five percent (25%). The limit established above will be calculated quarterly, taking into 
account the Issuer’s operating income for the twelve (12) months preceding the end of each quarter and applying the financial information disclosed by the 
Issuer; and

Non-compliance  with  the covenant clauses, during, at  least, two consecutive quarters,  or also two  nonconsecutive quarters within a  twelve-month period 
shall result in the early maturity of the agreement.

The agreements have a cross default clause, i.e., the early maturity of any of the Company’s debts, equal to or exceeding R$90  million (for the 19th issue, 
amount  equal  to  or  exceeding  R$120  million),  adjusted  by  IPCA  variation  as  of  the  issue  date,  due  to  contractual  default,  the  amount  of  which  may 
compromise the settlement of the Company’s monetary obligations arising from the Issue, will result in the early maturity of these agreements.

F-71

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(b)         Brazilian Federal Savings Bank - CEF  

(i)

Main events

Funding totaled R$199,602 in 2015, mainly related to the agreements in progress of the Growth Acceleration Program (PAC).

In September 2015, advance amortization totaled R$191,081, related to Pró-Saneamento Program.

The guarantee for financing agreements entered into with the Brazilian Federal Savings Bank is the recognition of a portion of tariffs in an account for this 
purpose with the Brazilian Federal Savings Bank, which should maintain a flow equal to or at least three times the amount of the monthly charges, during 
the grace period, based on interest, the management fee and the credit risk rate and, during the amortization phase, based on the principal, interest, the 
management fee and the credit risk rate. Additionally, the Company maintains a reserve account, linked to financing agreements, in the Brazilian Federal 
Savings Bank, which is maintained during the entire term the agreements, where an amount is accrued equivalent to a monthly charge, composed of, during 
the grace period, interest, the management fee and the credit risk rate and, during the amortization phase, of the principal, interest, the management fee 
and the credit risk rate.

(ii)                Covenants

The agreements have a cross default clause, i.e., the early maturity of any of the Company’s debts, due to contractual default, the occurrence of which may 
anyhow compromise the settlement of its monetary obligations deriving from these contracts shall imply the early maturity.

For the outstanding contracts, formalized between May 28, 2007 and March 13, 2013, the Company has the following restrictive clauses “covenants”:

AMD – Performance Improvement Agreement (*)

The agreements in effect, entered into with the Brazilian Federal Savings Bank and the BNDES (Baixada Santista, PAC, Onda Limpa, PAC II 9751 and PAC II 
9752),  whose  proceeds  were  obtained  through  a  selection  process  of  the  Ministry  of  Cities,  contracted  between  May  28,  2007  and  March  13,  2013,  are 
subject to the financial commitments established in the AMD, calculated upon disclosure of the annual financial statements, as follows:

According  to  the  Normative  Ruling  no.  05  of  January  22,  2008,  the  agreements  which  are  purpose  of  investment  funds,  having  as  source  of  fund,  the 
Government Severance Indemnity Fund for Employees (“FGTS”) or Worker Support Fund (“FAT”), which go through a selection process of the Ministry of 
Cities, shall maintain a valid Performance Improvement Agreement (“AMD”) with financial and operational ratios targets, yearly projected for the following 
5 years, based on the average of the last two years. 

The Performance Improvement Agreement, dated May 28, 2007 and amended in August 2012, was signed between SABESP and the federal government 
and  Federal  Savings  Banks  and  BNDES  as  intervening  parties.  According  to  this  agreement,  the  Company  shall  comply  with,  at  least,  four  of  eight 
operational and financial ratios, stipulated for the period between 2012 and 2016. If the Company fail to comply with five of these ratios, the Federal Savings 
Bank  and  BNDES  may  suspend  the  disbursements  and  the  Company  would  be  prevented  from  executing  any  other  credit  facility  agreement  with  these 
institutions, until new targets are negotiated. The possibility of renegotiating the targets, if necessary, is foreseen.

F-72

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

On  March  14,  2013,  through  the  Normative  Ruling  no.  06,  the  Ministry  of  Cities  revoked  the  Normative  Instruction  no.  05  of  January  22,  2008,  which 
regulates the Performance Improvement Agreement. Pursuant to Article 2 of the Normative Instruction no. 06, the AMDs signed until March 13, 2013 shall 
remain valid until the expiration date of their related effectiveness period, not being necessary to execute or renegotiate the AMD in new contracts.

(c) BNDES

Balance as of December 31, 2015 is stated net of borrowings costs in the amount of R$920 (R$1,011 on December 31, 2014), which will be amortized during 
the same maturity period of each contract.

(i)

Relevant funding

In 2015, funding totaled R$95,000, referring to 12.2.1381.1 agreement (BNDES Tietê III), signed in February 2013; and R$20,000, referring to 09.2.1535.1 
agreement (BNDES Onda Limpa), signed in March 2010.

Loans are collateralized by part of revenues from the provision of water and sewage services, up to the total amount of the outstanding balance.

(ii)

Covenants

The agreements entered into with the BNDES have standardized financial covenants, as described in item (a), (ii), covenants applicable to the 10th issue, 
14th  issue and 18th  issue, of this Note.

Operating covenants applicable to Baixada Santista, PAC, Onda Limpa and PAC II 9751, PAC II 9752:

AMD – Performance Improvement Agreement (*)

(*) See item (b), (ii) of this note.

(d)         Leasing

The Company has lease agreements signed as  Assets Lease. During the construction period, works are capitalized to intangible assets in progress and the 
lease amount is recorded at the same proportion. Works are estimated to be concluded in 2016.

After startup, the lease payment period starts (240 monthly installments), whose amount is periodically restated by contracted price index.

F-73

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

On January 15, 2015, the Sewage Treatment Station of São José dos Campos started its operations and the corresponding amounts as of December 31, 2015 
totaled R$96,108.

(e)         Eurobonds

Balance as of December 31, 2015 is net of borrowing costs in the amount of R$4,212 (R$5,142 as of December 31, 2014), which will be amortized during the 
same maturity period of the contract.

(i)

Covenants

For the outstanding contracts, the Company has the following restrictive clauses “covenants”:

Calculated every quarter upon the disclosure of interim or annual financial statements:

Restrict the funding of new debts so that:

-   adjusted total debt to EBITDA does not exceed 3.65;

-   the Company's debt service coverage ratio, determined on the date this debt was incurred, shall not be lower than 2.35.

Noncompliance with covenants will accelerate the maturity of the agreement.

The agreement has a cross default clause, i.e., the early maturity of any indebtedness in view of the Company’s loans or any of its Subsidiaries (*) with a total 
principal amount of US$ 25,000,000.00 or more (or its corresponding amount in other currencies) shall imply this agreement’s early maturity.

(*) As per agreement, subsidiary is: “the company, partnership or another entity from which over 50% of its voting shares are directly or indirectly owned or 
controlled by any Person or one or other Person’s Subsidiaries, or their combination”.

(f)          Inter-American Development Bank (BID)

Balance as of December 31, 2015 is net of borrowing costs amounting to R$9,544 (R$8,017 as of December 31, 2014), which will be amortized during the 
same maturity period of each agreement.

(i)

Relevant funding

In 2015, funding totaled R$181,998, referring to 2202 agreement (BID 2202).

Loans obtained from multilateral agencies and from Government Agencies, such as the BID, BIRD and JICA, are guaranteed by the Federal Government, 
with a counter-guarantee of the São Paulo State government.

(ii)

Covenants

F-74

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

For the outstanding contracts, the Company has the following restrictive clauses “covenants”:

Calculated every quarter upon the disclosure of interim or annual financial statements:

-   Loan agreements 713, 896 and 1212 - Tariffs must: (a) produce revenues sufficient to cover the system's operating expenses, including administrative, 
operating,  maintenance,  and  depreciation  expenses;  (b)  provide  a  return  on  property,  plant,  and  equipment  no  less  than  7%;  and  (c)  during  project 
execution, the balances of current loans must not exceed 8.5% of total equity.

Noncompliance with covenants will accelerate the maturity of the contract.

The agreement has a cross default clause among BID agreements (same financial bank), i.e., the early maturity will occur in the event of failure to comply 
with any obligation therewith or any other agreement signed with BID related to project finance.

(g)         Japan International Cooperation Agency - JICA 

(i)

Relevant funding

Balance as of December 31, 2015 is stated net of borrowing costs amounting to R$2,646 (R$2,086 as of December 31, 2014), which will be amortized during 
the same maturity period of each contract.

In 2015, funding totaled R$215,119, referring to BZ-P19 agreement (JICA 19); and R$13,800, referring to BZ-P17 agreement (JICA 17).

For guarantees assigned, see item f (i) of this Note.

(h)         AB Loan (IADB 1983AB) 

The balance stated as of December 31, 2015 is net of borrowing costs amounting to R$5,684 (R$1,994 as of December 31, 2014), which will be amortized 
during the same maturity period of each contract.

(i)

Covenants

The Company has the following restrictive clauses “covenants”:

Calculated every quarter upon the disclosure of interim or annual financial statements:

- The Company’s ratio of debt service coverage, determined on a consolidated basis, must be higher than or equal to 2.35; and

- Total adjusted debt over Adjusted EBITDA, determined on a consolidated basis, must be lower than 3.65.

F-75

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

The agreement has a cross default clause, i.e., if a Default Event occurs and continues (whether voluntarily or involuntarily, whether resulting from the effect 
of any applicable laws or according to with due to any act or omission to act by any Authority or another one), the BID through notification to the Borrower 
may order the early maturity of loan or part of it as specified in the notice (including accrued interest rates) and all other obligations are overdue and shall 
be promptly payable.

On September 30, 2015, the Company and the IDB entered into a Letter Agreement related to the 1983AB Loan Agreement, in which the IDB irrevocably 
agreed not to exercise its right to accelerate the debt, in the period between September 30, 2015 and October 1, 2016, in the case of non-compliance, in a 
single quarter, with the “Adjusted net debt / EBITDA” ratio, which should be lower than 3.65. The IDB may exercise its right to accelerate repayment in the 
case of non-compliance with the ratio for more than one quarter.

(i)          International Bank for Reconstruction and Development -IBRD

Balance as of December 31, 2015 is stated net of borrowing costs amounting to R$346 (R$366 as of December 31, 2014), which will be amortized during the 
same maturity period of each agreement.

In 2015, funding totaled R$52,488.

For the guarantees assigned, see item f (i) of this Note. 

(j)          Covenants

As of December 31, 2015 and 2014, the Company had met the requirements set forth by its loan and financing agreement.

(k)         Borrowings and financing – Credit Limited

Agent

Brazilian Federal Savings Bank

Brazilian Development Bank - BNDES

Inter-American Development Bank – BID

Japan International Cooperation Agency – JICA

International Bank for Reconstruction and Development – IBRD

Others

TOTAL

(*) Exchange rate as of 12/31/2015. (US$1.00 = R$3.9048; ¥1.00 = R$0.03243).

SABESP in order to comply with its Capex plan relies on a fund-raising plan.

F-76

December 31, 2015

(in millions of reais (*))

2,087

2,104

761

536

152

51

5,691

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Financing resources contracted have specific purposes, which have been released for the execution of their respective investments, according to the progress 
of the works. 

17           Taxespayable

(a)

Current assets

Recoverable taxes

Cofins and Pasep

Income tax and social contribution

Withholding income tax (IRRF) on financial investments

Other federal taxes

Other municipal taxes

Total

December 31, 2015

December 31, 2014

-

68,978

4,914

3,661

275

77,828

10,121

132,447

3,718

2,313

169

148,768

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

(b)

Current liabilities

Taxes and contributions payable

Cofins and Pasep

INSS (Social Security contribution)

IRRF (withholding income tax)

Other

Total

December 31, 2015

December 31, 2014

40,505

33,836

11,126

21,828

107,295

-

33,324

17,377

23,437

74,138

F-77

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

18           DeferredTaxesandContributions

(a)

Balance sheet balances

Deferred income tax assets 

Provisions

Pension obligations – G0

Pension obligations – G1

Donations of underlying assets on concession agreements

Allowance for loan losses

Tax losses

Other

Total deferred tax assets

Deferred income tax liabilities

Temporary difference on concession intangible assets

Capitalization of borrowing costs

Profit on supply to governmental entities

Actuarial gain/loss –G1 Plan

Construction margin 

Borrowing costs

Total deferred tax liabilities

Deferred tax assets, net

F-78

December 31, 2015

December 31, 2014

480,378

-

256,808

53,206

213,171

58,829

121,550

1,183,942

(524,495)

(309,648)

(81,055)

(33,726)

(94,921)

(11,855)

524,728

85,271

229,266

45,742

222,587

-

112,566

1,220,160

(559,411)

(253,581)

(87,092)

(2,514)

(98,772)

(9,312)

(1,055,700)

(1,010,682)

128,242

209,478

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(b)         Realization

Deferred income tax assets

to be realized within 12 months

to be realized after one year

Total deferred tax assets

Deferred income tax liabilities

to be realized within 12 months

to be realized after one year

Total deferred tax liabilities

Deferred tax assets

(c)         Changes

Deferred income tax assets

December 31, 2014

Provisions

Pension obligations – G0

Pension obligations - G1

Donations of underlying assets on concession agreements

Credit losses

Tax losses

Other

Total

Deferred income tax liabilities

Temporary differences on concession intangible asset

Capitalization of borrowing costs

Profit on supply to governmental entities

Actuarial gain/losses – G1

Construction margin

Borrowing costs

Total

Deferred tax asset, net

524,728

85,271

229,266

45,742

222,587

-

112,566

1,220,160

(559,411)

(253,581)

(87,092)

(2,514)

(98,772)

(9,312)

(1,010,682)

December 31, 2015

December 31, 2014

277,573

906,369

1,183,942

(42,820)

(1,012,880)

(1,055,700)

128,242

Net 
change 

(44,350)

(85,271)

27,542

7,464

(9,416)

58,829

8,984

(36,218)

34,916

(56,067)

6,037

(31,212)

3,851

(2,543)

(45,018)

216,063

1,004,097

1,220,160

(39,836)

(970,846)

(1,010,682)

209,478

December 31, 2015

480,378

-

256,808

53,206

213,171

58,829

121,550

1,183,942

(524,495)

(309,648)

(81,055)

(33,726)

(94,921)

(11,855)

(1,055,700)

209,478

(81,236)

128,242

F-79

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Deferred income tax assets

December 31, 2013

Net 
variation 

December 31, 2014

Provisions

Pension obligations – G0

Pension obligations - G1

Donations of underlying assets on concession agreements

Credit losses

Other

Total

Deferred income tax liabilities

Temporary difference on concession intangible asset 

Capitalization of borrowing costs

Profit on supply to governmental entities

Actuarial gain /loss – G1

Other

Total

Deferred tax asset, net

Opening balance 

Net change in the year:

- corresponding entry to the income statement
- corresponding entry to valuation adjustments to equity (Note 20 
(b))

Total net change

Closing balance 

506,568

85,271

215,187

43,901

172,482

87,266

1,110,675

(595,285)

(200,343)

(81,711)

(32,405)

(86,901)

(996,645)

18,160

-

14,079

1,841

50,105

25,300

109,485

35,874

(53,238)

(5,381)

29,891

(21,183)

(14,037)

524,728

85,271

229,266

45,742

222,587

112,566

1,220,160

(559,411)

(253,581)

(87,092)

(2,514)

(108,084)

(1,010,682)

114,030

95,448

209,478

December 31, 2015

December 31, 2014

December 31, 2013

209,478

114,030

145,302

(50,024)

(31,212)

(81,236)

128,242

F-80

65,557

29,891

95,448

10,538

(41,810)

(31,272)

209,478

114,030

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(d)         Reconciliation of the effective tax rate

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

Profit before income taxes

Statutory rate

Estimated expense at statutory rate

Tax benefit of interest on equity

Permanent differences

Provision Law 4,819/58 (i)

Donations

GESP agreement (Note 10 (vii))

Other differences

Income tax and social contribution

Current income tax and social contribution

Deferred income tax and social contribution

Effective rate

2015

587,529

34%

(199,760)

56,172

(54,679)

(3,153)

151,465

(1,295)

(51,250)

(1,226)

(50,024)

9%

2014

2013

1,274,843

34%

(433,447)

100,327

(48,380)

(7,080)

-

16,720

2,655,599

34%

(902,904)

182,596

(33,279)

(12,218)

-

33,765

(371,860)

(732,040)

(437,417)

65,557

29%

(742,578)

10,538

28%

(i)           Permanent difference related to the provision for actuarial liability (Note 20 (iii)).

F-81

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(e)      Law 12,973/2014

On May 13, 2014, the Provisional Presidential Decree 627 of November 11, 2013 was converted into Law 12,973, which amend the federal tax laws related to 
the Corporate Income Tax - IRPJ, Social Contribution on Net Income - CSLL, Contribution to PIS/Pasep and Contribution to Social Security Financing– 
Cofins and revokes the Tax Transition System- RTT, enacted by Law No.11,941 of May 27, 2009.

As of January 1, 2015, the Company adopts the criteria set forth in Law 12,973/2014. There were no relevant impacts arising from these changes.

19           Provisions

    (a)   Lawsuits with probable likelihood of loss

(I) Financial position balances

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

Provisions Escrow deposits December 31, 2015

Provisions Escrow deposits

Customer claims (i)

Supplier claims (ii)

Other civil claims (iii)

Tax claims (iv)

Labor claims (v)

Environmental claims (vi)

Total

Current

Noncurrent

561,061

296,660

124,833

62,812

283,991

83,520

(97,711)

(217,625)

(10,681)

(677)

(3,073)

(896)

1,412,877

(330,663)

631,890

780,987

-

(330,663)

463,350

79,035

114,152

62,135

280,918

82,624

1,082,214

631,890

450,324

F-82

638,637

260,854

126,403

55,554

235,466

226,404

(114,463)

(195,478)

(9,990)

-

(2,233)

(807)

December 31, 
2014

524,174

65,376

116,413

55,554

233,233

225,597

1,543,318

(322,971)

1,220,347

625,092

918,226

-

(322,971)

625,092

595,255

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(II) Changes

Customer claims (i)

Supplier claims (ii)

Other civil claims (iii)

Tax claims (iv)

Labor claims (v)

Environmental claims (vi)

Subtotal

Escrow deposits

Total

Customer claims 

Supplier claims 

Other civil claims 

Tax claims 

Labor claims 

Environmental claims 

Subtotal

Escrow deposits

Total

Customer claims 

Supplier claims 

Other civil claims 

Tax claims 

Labor claims

Environmental claims 

Subtotal

Escrow deposits

Total

December 31, 
2014

Additional 
provisions

Interest and 
inflation 
adjustment

Use of the 
accrual

Amounts not 
used
(reversal)

December 31, 
2015

638,637

260,854

126,403

55,554

235,466

226,404

1,543,318

(322,971)

1,220,347

34,868

7,062

13,022

1,501

114,499

17,072

188,024

(16,892)

171,132

96,735

39,143

20,643

8,557

27,231

16,247

208,556

(21,791)

186,765

(92,203)

(5,837)

(12,778)

(266)

(23,431)

(8,081)

(142,596)

26,061

(116,535)

(116,976)

(4,562)

(22,457)

(2,534)

(69,774)

(168,122)

(384,425)

4,930

(379,495)

561,061

296,660

124,833

62,812

283,991

83,520

1,412,877

(330,663)

1,082,214

December 31, 
2013

Additional 
provisions

Interest and 
inflation 
adjustment

Use of the 
accrual

Amounts not 
used
(reversal)

December 31, 
2014

621,999

340,100

129,400

59,659

156,060

182,689

1,489,907

(309,525)

1,180,382

66,895

1,917

31,224

983

123,631

53,829

278,479

(24,999)

253,480

87,987

18,922

37,607

6,818

22,205

21,257

194,796

(21,613)

173,183

(74,308)

(66,608)

(14,507)

(2,313)

(42,107)

(13)

(199,856)

28,698

(171,158)

(63,936)

(33,477)

(57,321)

(9,593)

(24,323)

(31,358)

(220,008)

4,468

(215,540)

638,637

260,854

126,403

55,554

235,466

226,404

1,543,318

(322,971)

1,220,347

December 31, 
2012

Additional 
provisions

Interest and 
inflation 
adjustment

Use of the 
accrual

Amounts not 
used
(reversal)

December 31, 
2013

652,663

290,593

169,513

71,141

173,227

149,061

1,506,198

(317,044)

1,189,154

109,920

106,094

(101,710)

(144,968)

45,328

26,517

7,981

22,284

10,360

218,564

(17,391)

201,173

(2,968)

(9,175)

(6,320)

(80,670)

(660)

(201,503)

24,319

(177,184)

(9,979)

(88,477)

(15,649)

(34,623)

(20,591)

(314,287)

34,909

(279,378)

17,126

31,022

2,506

75,842

44,519

280,935

(34,318)

246,617

F-83

621,999

340,100

129,400

59,659

156,060

182,689

1,489,907

(309,525)

1,180,382

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(b)         Lawsuits with possible likelihood of loss

The  Company  is  party  to  lawsuits  and  administrative  proceedings,  which  are  assessed  by  Management  whose  chances  of  loss  are  possible  and  are  not 
recorded. Liability contingencies classified as possible loss, are represented as follows:

Customer claims (i)

Supplier claims (ii)

Other civil claims (iii)

Tax claims (iv)

Labor claims (v) 

Environmental claims (vi)

Total

December 31, 2015

December 31, 2014

414,700

1,606,100

683,000

945,400

483,700

1,277,600

461,900

1,346,400

447,900

632,100

304,000

586,800

5,410,500

3,779,100

(c)         Explanation on the nature of main classes oflawsuits

(i)

     Customer claims 

Approximately 1,155 lawsuits were filed by commercial customers, which claim that their tariffs should correspond to other consumer categories, and 720 
lawsuits which claim a reduction in the sewage tariff due to losses in the system, consequently requesting the refund of amounts charged by the Company 
and 55 lawsuits where customers plead the reduction in tariff under the category as “Social Welfare Entity”. The Company was granted both favorable and 
unfavorable  final  decisions  at  several  court  levels  and  recognized  provisions  when  the  chances  of  losses  are  probable.  The  decrease  of  R$60,824  in  the 
lawsuits  classified  as  probable  loss  (net  of  escrow  deposits)  is  mainly  related  to  payments  made  in  the  period  and  revisions  of  expectations  caused  by 
favorable decisions during 2015. The R$47,200 decrease in lawsuits with chances of possible losses is mainly related to revisions of expectations.

(ii)

Supplier claims

F-84

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Suppliers’  claims  include  lawsuits  filed  by  some  suppliers  alleging  underpayment  of  monetary  restatements,  withholding  of  amounts  related  to  the 
understated inflation rates deriving from Real economic plan, and the economic and financial imbalance of the agreements. These lawsuits are in progress at 
different  courts  and  a  provision  is  recognized  when  the  chances  of  losses  are  probable.  The  R$259,700  increase  in  lawsuits  whose  chances  of  losses  is 
considered possible is mainly related to interest rates, fees and update of lawsuits in progress.

(iii)

Other civil claims

These mainly refer to indemnities for property damage, pain and suffering, and loss of profits allegedly caused to third parties, filed at different court levels, 
dully accrued when classified as probable losses. The R$235,100 increase in the lawsuits with expectation of possible losses is related to new lawsuits filed in 
2015, and interest rates, fees and update of lawsuits in progress.

(iv)

Tax claims

Tax claims refers mainly to issues related to tax collections challenged due to differences in the interpretation of legislation by the Company's management, 
accrued  when  classified  as  probable  loss.  The  R$313,300  increase  in  lawsuits  with  chances  of  possible  losses  is  related  to  an  increase  in  the  number  of 
lawsuits filed in 2015 and interest rates, fees and update of lawsuits in progress. 

(a) In 2006, the Federal Revenue Service, by means of a tax execution, verified the Company’s compliance with the tax obligations related to income tax and 
social contribution for calendar year 2001, and issued a tax assessment adjusted through December 31, 2015 in the amount of R$455,934 (R$431,853 as of
December 31, 2014). The Company appealed this recognition and was granted a partial relief in the first administrative instance. In December 2015, it filed a 
Voluntary  Appeal  against  the  part  of  the  decision  that  was  unfavorable  to  it.  Management  considers  that  the  chances  of  losses  of  this  administrative 
proceeding is approximately 90% considered remote and 10% possible.

(b)  The  municipality  of  São  Paulo  through  law  revoked  the  services  tax  exemption  which  until  them  the  company  withheld  and  thereafter  issued  tax 
deficiency notices related to the sewage service and ancillary activities, in the updated amount of R$430,268 (R$357,528 as of December 31, 2014), which 
currently are subject-matter of Tax Foreclosures, classified by the Management as possible losses. SABESP filed a writ of mandamus against this revocation, 
which was rejected, and currently is under phase of appealability of Special and Extraordinary Appeals filed. Writs of prevention and actions for annulment 
were also filed, aiming the suspension of enforceability of credits and the annulment of tax deficiency notices, as it understands that notwithstanding the 
exemption revocation, the sewage activities and ancillary activities are not included in the list of activities subject to taxation by municipality. There is no 
final court decision on the merits and the Company’s Management assessed the risk as possible losses.

(c)  The  Federal  Revenue  Service  rejected  some  offset  requests  made  by  the  Company  for  the  extinction  of  IRPJ/CSLL  payable,  using  favorable  amounts, 
arising from undue payments of IRPJ/CSLL, which were paid based on monthly estimates. The amount involved was adjusted through December 31, 2015 
and is R$57,612 (R$53,486 as of December 31, 2014). Management assessed it as a possible loss. 

F-85

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(d) The Company’s request for an authorization to offset taxes was rejected, overdue in the periods of July, August and September 2002 against the amount 
of IRPJ paid in excess in 1997 and 1998, due to inflation adjustment over the financial statements (Law 8,200/91), which was anticipated in 1996 due to an 
injunction,  after  excluded  due  discontinuance  of  proceeding  and  application  of  Provisional  Measure  38/02.  The  Administrative  Council  of  Tax  Appeals 
rejected the credit from 1997. The amount involved was adjusted through December 31, 2015 and is estimated at R$47,470 (R$45,401 as of December 31, 
2014). The Company’s Management assessed this claim as a possible loss.

(e) On June 23, 2010, the Company and the municipality of São Paulo signed an agreement to provide water supply and sewage services. The negotiation of 
this  agreement  led  to  the  extinction  of  some  judicial  lawsuits,  but others  were not part of the referred agreement, and lawsuit proceeds as usual. The
remaining judicial lawsuits considered  as  possible  and  probable  loss  are  mainly  related  to  taxes  and  fines.  As  of  December  31,  2015  the  amounts  of  such 
judicial lawsuits were R$17,772 (R$15,746 as of December 31, 2014) and R$87,650 (R$71,677 as of December 31, 2014), respectively. 

(f) In 2005, the Federal Revenue Service partially rejected the Company´s request of offsetting tax credits related to the Corporate Income Tax (IRPJ) and 
the  Social  Contribution  on  Net  Income  (CSLL)  in  the  amount  of  approximately  R$56,118,  and  R$8,659,  respectively,  which  relate  to  the  period  from 
January to April 2003, for which the Company offset prior year IRPJ and CSLL negative balances. The amounts not ratified by the authority of IRPJ and 
CSLL are R$11,164 and R$698, totaling R$11,862 million. As the company was granted a partial relief in this matter, the Company's legal counsels believe 
the chances of losses amount to R$7,636 as of December 31, 2015 (R$7,288 as of December 31, 2014) R$1,302 (R$1,243 as of December 31, 2014), and these 
are possible and probable, respectively.

(g) SABESP filed two writs of mandamus pleading the declaration of unconstitutional municipal laws that levy the collection of taxes deriving from the use of 
public  areas  in  the  water  and  sewage  network  installation  for the  rendering  of  basic  sanitation  public  utilities.  The  first  writ  of  mandamus  was  judged 
groundless at the lower court and the Court of Justice of São Paulo, in the appeal's records, partially granted relief to recognize the impossibility of charging 
the monthly contribution, due to unconstitutionality, deeming as valid the need of security and other requirements to issue the Statement of Use Permit– 
TPU, however, this decision had no effect since the rules, subject-matter of the first writ of mandamus were revoked. The second writ of mandamus was 
granted  partial  relief  to  prohibit  the  enforceability  of  public  price  and  the  security  for  the  use  of  public  areas  deriving  from  the  municipal  laws.  The 
municipality’s appeal was rejected and is pending judgment at the higher court.  The Management assessed the risk as possible loss, but it was not possible 
to  estimate  the  amount  involved,  as  it  would  be  necessary  to  know  the  extension  of  water  and  sewage  networks  and  other  equipment  installed  in  the 
municipality’s urban soil (public areas), as well as define the amount of related property based on the length applied.

(v)

Labor claims

The  Company  is  a  party  to  labor  lawsuits,  involving  issues  such  as  overtime,  shift  schedule,  health  hazard  premium  and  hazardous  duty  premium,  prior 
notice, change of function, salary equalization, service outsourcing and other. Part of the amount involved is in provisional or final execution at various court 
levels,  and  thus  is  classified  as  of  probable,  and  accordingly,  accrued.  The  R$47,685  increase  in  lawsuits  with  probable  chances  of  losses  (net  of  escrow 
deposits) was mainly due to the revision of expectations caused by unfavorable decisions. The R$179,700 increase in the lawsuits with possible chances of 
losses is mainly due to higher lawsuits filed, revision of expectations and interest rates, fees and updates on lawsuits in progress in 2015.

F-86

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(vi)

Environmental claims

Environmental  claims  refer  to  several  administrative  proceedings  and  lawsuits  filed  by  government  entities,  including  Companhia  de  Tecnologia  de 
Saneamento Ambiental – Cetesb, Public Prosecution Office of the State of São Paulo and others, that aim affirmative and negative covenants and penalty is 
estimated due to failure to comply in addition to the imposition of indemnity due to environmental damages allegedly caused by the Company. The amounts 
accrued represent the best estimate of the Company at this moment, however, may differ from the amount to be disbursed as indemnity to alleged damages, 
in  view  of  the  current  stage  of  referred  proceedings.  The  R$142,973  decrease  in  lawsuits  with  expectation  of  probable  losses  (net  of  escrow  deposits)  is 
mainly related to settlements in 2015 and revisions of expectations caused by favorable decisions. The R$690,800 increase in lawsuits with expectation of 
possible loss was due to the increase in the number of lawsuits filed in 2015 and the complementary estimates of lawsuits in progress.

Among the main lawsuits the Company is involved, there are six public civil actions the subject-matters of which are: a) sentence SABESP to restrain itself 
from discharging or releasing sewage without due treatment; b) invest in the water and sewage treatment system of the municipality, under the penalty of 
paying  a  fine;  c)  payment  of  indemnity  due  to  environmental  damages,  amongst  others.  Management  classified  part  of  lawsuits  as  probable  chances  of 
losses,  in  the  amount  of  R$63,095  (R$87,056  as  of  December  31,  2014)  and  another  eleven  lawsuits  as  possible  losses  in  the  amount  of  R$1,233,857 
(R$558,980 as of December 31, 2014).

(vii)

 Other concession-related legal proceedings       

The Company is party in concessions-related proceedings, cases in which it can lose the right of operating water supply and sewage collection services in few 
municipalities, such as follows: 

(a) The municipality of Cajobi filed an action to recover possession against SABESP, which was granted relief to maintain the municipality in the possession 
of  water  and  sewage  assets.  It  is  currently  awaiting  the  decision  on  the  internal  Interlocutory  Appeal  filed  against  the  decision  that  denied  the  Special 
Appeal.  Meanwhile,  SABESP  has  filed  a  Motion  for  Expedited  Discovery  in  order  to  calculate  the  amount  payable  to  each  municipality,  which  is  in  the 
forensic accounting stage, and subsequently file an action for damages, with a possible likelihood of loss. 

(b) The Company filed a repossession action against the municipality of Álvares Florence, which was deemed groundless in an unappealable judgement on 
June 3, 2015, and the operation is not maintained; 

F-87

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(c)  The  municipality  of  Macatuba  filed  an  action  to  recover  possession  against  SABESP,  which  was  granted  relief.  SABESP  does  not  operate  in  the 
municipality  and  the  likelihood  of  loss  is  probable.  Meanwhile,  SABESP  has  filed  an  action  requesting  the  payment  of  indemnity  for  the  portions  of  the 
investments related to non-amortized or depreciated reversible assets. The action is in the forensic accounting stage, with a possible likelihood of loss. In 
this  same  action,  the  municipality  of  Macatuba  filed  an  appeal  because  it  believes  that  SABESP  earned,  through  the  collection  of  tariffs,  more  than  the 
amount invested in the water and sewage system, requesting that the Company be sentenced to pay an indemnity to be calculated by forensic experts, with a 
possible likelihood of loss; 

(d)  The  Company  filed  an  action  to  maintain  possession  against  the  municipality  of  Iperó,  which  was  deemed  groundless  and  is  currently  awaiting  the 
acceptance of appeals, however, the lawsuit is suspended for eventual settlement between the parties. The chances are of probable loss. Meanwhile, SABESP 
filed a Motion for Expedited Discovery, which was granted only for the listing of the assets that integrate the service. The lawsuit is currently suspended for 
the possible execution of a program agreement;

(e)  The  municipality  of  Embaúba  filed  a  repossession  action  against  SABESP,  which  was  granted  relief  to  maintain  the  municipality  in  the  possession  of 
water and sewage assets and was issued a final and unappealable judgment on May 29, 2015. The indemnity action was judged groundless in first instance. 
The Company is currently awaiting the sentence on the appeal. The likelihood of loss is possible; 

(f)  The  municipality  of  Araçoiaba  da  Serra  filed  a  repossession  action  against  SABESP,  which  was  granted  relief  to  maintain  the  municipality  in  the 
possession of water and sewage assets and was issued a final and unappealable judgment. SABESP filed an indemnity action against the municipality, which 
is in progress, in the forensic expert stage, with a possible likelihood of loss;

(g) The municipality of Itapira filed a repossession action against SABESP, which was granted relief to maintain the municipality in the possession of water 
and sewage assets. SABESP filed an indemnity action against the municipality, which is in progress, with a possible likelihood of loss.

(h) The municipality of Tuiuti, through a declaratory judgment action, obtained the right to remain in charge of water and sewage services. However, in a 
counter-claim, the municipality was sentenced to pay an indemnity, to be restated as of March 1996, as a final decision that became an execution object by 
SABESP. SABESP no longer operates in the municipality. The likelihood of loss in the counter-claim is remote. 

The  amount  of  the  intangible  assets  related  to  the  municipalities  mentioned  in  the  lawsuits  mentioned  above  is  R$33.502  as  of  December  31,  2015 
(December 31, 2014 – R$33,510). If any of these municipalities is awarded a final and unappealable favorable sentence, allowing it to repossess sanitation 
service assets and operations, the Brazilian legislation provides for the indemnity of the Company’s investments. 

See information about EMAE lawsuits in Note 10 (c).

F-88

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(d)         Lawsuits with settlements made in 2015

During 2015, the Company settled several judicial and administrative proceedings, totaling R$228,643. Out of this amount, R$212,713 refer to works and 
R$15,929  refer  to  environmental compensations,  the later,  recorded  as “other  liabilities”. The accumulated  balance as of December  31, 2015, referring  to 
these environmental liabilities amounted R$32,146 (R$18,497 as of December 31, 2014).

(e)         Guarantee insurance for escrow deposit

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

In 2015, the Company used R$238,540 of the total contracted amount.

20          Employees Benefits 

(a)         Health benefit plan

The health benefit plan is managed by Sabesprev and consists of optional, free choice, health plans sponsored by contributions of SABESP and the active 
participants, as follows:

.     Company: 7.4% (December 31, 2014 – 7.2%) on average, of gross payroll;

.     Participating employees: 3.21% of base salary and premiums, equivalent to 2.3% of payroll, on average. 

(b)         Pensionplanbenefits

Funded plan – G1 (i)

Present value of defined benefit obligations

Fair value of the plan assets

Net liabilities recognized for defined benefit obligations

Unfunded plan – G0 (iii)

Present value of defined benefit obligations

Net liabilities recognized for defined benefit obligations

Liability as per statement of financial position – pension obligations (*)

F-89

December 31, 2015

December 31, 2014

2,252,204

(1,586,930)

2,249,794

(1,573,723)

665,274

676,071

2,166,942

2,053,527

2,166,942

2,053,527

2,832,216

2,729,598

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

The increase of liabilities in 2015 is mainly due to the impact of real increase of salaries and benefits, in spite of the increase in the discount rate to the G1 
and G0 plans to 7.23% and 7.25% in 2015, versus 6.11% and 6.09% in 2014.

Pursuant to IAS19, the Company recognizes (gains)/losses, due to changes in assumptions under equity, as valuation adjustments to equity, as shown below:

As at December 31, 2015

Actuarial gain /(loss) on obligations

Gains/(losses) on financial assets

Total gains/(losses)

Deferred income tax and social contribution– G1 Plan

Valuation adjustments to equity

As at December 31, 2014

Actuarial gain /(loss) on obligations

Gains /(losses) on financial assets

Other

Total gains /(losses)

Deferred income tax and social contribution – G1 Plan

Valuation adjustments to equity

As at December 31, 2013

Actuarial gain /(loss) on obligations

Gains /(losses) on financial assets

Other

Total gains /(losses)

Deferred income tax and social contribution – G1 Plan

Valuation adjustments to equity

G1 Plan

G0 Plan

Total

228,191

(136,389)

91,802

(31,212)

60,590

(24,224)

-

(24,224)

-

(24,224)

203,967

(136,389)

67,578

(31,212)

36,366

G1 Plan

G0 Plan

Total

(113,727)

28,208

(2,397)

(87,916)

29,891

(58,025)

(198,192)

-

-

(198,192)

-

(198,192)

(311,919)

28,208

(2,397)

(286,108)

29,891

(256,217)

G1 Plan

G0 Plan

Total

432,426

(312,857)

3,404

122,973

(41,810)

81,163

244,121

-

-

244,121

-

244,121

676,547

(312,857)

3,404

367,094

(41,810)

325,284

F-90

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(i)          G1 Plan

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





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

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

As of December 31, 2015, SABESP had a net actuarial liability of R$665,274 (R$676,071 as of December 31, 2014) representing the difference between the 
present  value of the Company's defined benefit obligations to the participating employees, retired employees, and pensioners; the fair value of the  plan’s 
assets.

Defined benefit obligation, beginning of the year

Current service cost

Interest cost

Actuarial (gains)/losses recorded as other comprehensive income

Benefits paid

2015

2,249,794

46,355

286,735

(228,191)

(102,489)

2014

1,988,912

30,736

199,528

113,727

(83,109)

Defined benefit obligation, end of the year

2,252,204

2,249,794

Below, the change of fair value of plan assets during the year:

Fair value of plan’s assets, beginning of year

Expected return on the plan assets

Expected Company's contributions

Expected participants’ contributions

Benefits paid

Financial gain (loss) recorded as other comprehensive income

Fair value of plan’s assets, end of the year

(Deficit)/Surplus

F-91

2015

1,573,723

205,981

23,052

23,052

(102,489)

(136,389)

1,586,930

(665,274)

2014

1,442,164

144,678

21,223

20,559

(83,109)

28,208

1,573,723

(676,071)

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

The amounts recognized in the income statement are as follows:

Current service cost

Interest cost rate

Expected return on plan assets

Total expenses

2015

23,303

287,334

(205,981)

104,656

2014

9,513

199,528

(144,678)

64,363

2013

27,947

206,429

(151,139)

83,237

In  2015,  the  expenses  related  to  defined  pension  plan  amounting  to  R$68,412,  R$8,838  and  R$22,902,  were  recorded  in  operating  costs,  selling  and 
administrative expenses. The amount of R$4,504 was capitalized in assets. 

Estimated expenses

Current service cost

Interest cost rates

Participants contribution

Net profitability on financial assets

Total additional expenses to be recognized

Actuarial assumptions:

Discount rate – actual rate (NTN-B) 

Inflation rate

Expected rate of return on assets

Future salary increase

Mortality table

2016

37,725

295,421

(23,143)

(207,650)

102,353

2015

2014

2013

7.23% p.a.

6.49% p.a.

14.19% p.a.

8.62% p.a.

AT-2000

6.11% p.a.

6.49% p.a.

13.00% p.a.

8.62% p.a.

AT-2000

6.36% p.a.

5.80% p.a.

12.53% p.a.

7.92% p.a.

AT-2000

The number of active participants as of December 31, 2015 was 8,130 (8,670 as of December 31, 2014), and of inactive participants was 6,956 (6,675 as of 
December 31, 2014).

The benefit to be paid of G1 pension plan, expected for 2015 is R$170,193.

The contributions of the Company and participants of Plan G1 in 2015 were R$23,651 (R$22,956 in 2014) and R$24,216 (R$23,621 in 2014), respectively. 

F-92

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

The Company and Sabesprev are in process of negotiation to resolve the actuarial deficit. Migrations are suspended due to the lack of a final court decision 
on this matter. By continuing the process of migrating participants from the Defined Benefit Plan to Sabesprev Mais Plan, Management expects to reduce 
the actuarial deficit due to the change by the optionee, to the referred plan.

Sensitivity analysis of the defined benefit pension plan as of December 31, 2015 regarding the changes in the main assumptions are:

Funded plan - G1

Discount rate

Wage increase rate

Life expectation

Plan’s assets

Change in assumption

Increase of 1.0% 

Decrease of 1.0% 

Increase of 1.0% 

Decrease of 1.0% 

Increase of 1 year

Decrease of 1 year

Impact on present value of the defined benefit 
obligations 

Decrease of R$208,158

Increase of R$227,435

Increase of R$76,545

Decrease of R$67,687

Increase of R$43,690

Decrease of R$42,665

The plan investment policies and strategies are aim at getting consistent returns and reduce the risks associated to the utilization of financial assets available 
on  the  Capital  Markets  through  diversification,  considering  factors,  such  as  the  liquidity  needs  and  the  long-term  nature  of  the  plan  liability,  types  and 
availability of financial instruments in the local and international markets, general economic conditions and forecasts as well as requirements under the law. 
The plan's asset allocation management strategies are determined with the support of reports and analysis prepared by Sabesprev and independent financial 
advisors:

Fixed income 

- NTNB’s

- NTNC’s

- NTNF’s

- LTN’s

Government bonds in own portfolio

Fixed income fund quotas

Private credit investment fund quotas

Debentures

Total fixedincome

Equities
Stocks investment fund quotas

Shares

Totalequities

Structured investments

Equity investment fund quotas

Real estate investment fund quotas

Multimarket investment fund quotas

Total structured investments

Investments abroad

Other

Fair value of planassets

December 31, 2015

December 31, 2014

834,535

141,104

6,201

23,537

1,005,377

99,664

129,317

4,330

790,779

139,200

6,206

-

936,185

120,413

103,736

-

1,238,688

1,160,334

174,794

2,121

176,915

89,165

25,885

4,313

119,363

20,511

31,453

223,167

-

223,167

83,204

30,672

28,206

142,082

19,079

29,061

1,586,930

1,573,723

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(a) Fixed income: it is composed of government bonds issued by the National Treasury, between 2017 and 2050. These instruments are indexed by
NTN-b indexed by IPCA (Extended Consumer Price Index), NTN-c indexed by IGPM (General Market Price Index), NTN-f which has a fixed index, and 
LTN-s, which has a fixed index.

(b)  Fixed  Income  Fund  Quotas:  investment  funds  that  seek  return  on  fixed  income  assets  and  shall  have at least, 80% of the portfolio in directly

related assets, summed up via derivatives to the risk factor.

(c)  Private Credit Investment Fund Quotas: funds that seek return by means of the acquisition of operations  representing corporate debts or
disseminated receivables portfolios (rights or bonds), originated and sold by several assignors who anticipate funds and have receivables from several
business activities as guarantee.

(d) Equities: equity fund composed of Brazilian companies’ stocks listed at BM&FBovespa.

(e)  Equity Investment Fund Quotas: it is composed of a closed-ended investment fund. The assets under its  management are destined to the

acquisition of stocks, debentures, warrants or other securities convertible or swappable into shares issued by publicly- or closely-heldcompanies.

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(f) Real Estate Investment Fund Quotas: Funds investing in real estate projects (commercial buildings, shopping centers, hospitals, etc.). The return

on capital invested occurs by sharing the Fund’s proceeds or sale of its quotas in the Fund.

(g) Multimarket Investment Fund Quotas: they can be classified as Multimercados Referenciados DI or Multimercado Long & Short, they seek a

basic return of CDI or share arbitration, respectively.

(h) Foreign investment: investment fund quotas in global companies’ stocks, mostly, US companies.

(i) Other: basically composed of borrowings and real estates.

Restrictions with respect to asset portfolio investments, in the case of federal government securities:

i) papers securitized by the National Treasury will not bepermitted;

ii) derivative instruments must be used for hedge.

Restrictions with respect to asset portfolio investments, in the case of variable-income securities for internal management, are as follows:

i) day-trade operations will not be permitted;

ii) sale of uncovered share is prohibited;

iii) swap operations without guarantee are prohibited;

iv)  leverage  will  not  be  permitted,  i.e.,  operations  with  derivatives  representing  leverage  of  asset  or  selling short,  such  operations  cannot  result  in  losses 
higher than investedamounts.

At the end of 2015, Sabesprev had in its investment portfolio debentures issued by the Company in the amount of R$4,330 (R$1,893 as of December 31, 
2014). The real estate held in the portfolio is not used by the Company.

The  Brazilian  capital  markets  were  affected  in  2015  by  the  negative  perception  about  how  the  macroeconomic  policy  has  been  conducted,  inflation 
remaining at high levels and low economic growth, however, despite this scenario, the plan’s assets improved by 12.82% in 2015 and 9.92% in 2014, and this 
positive variation was substantially impacted by government bonds (NTNB’s, NTNC’s and NTNF’s).

Concerning the Fixed Income, investments in fixed income and private credit recorded positive returns impacted by the mark-to-market effect of federal 
government bonds, which had a relevant value appreciation in 2015 over 2014.

F-95

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Concerning  Equities,  stocks  of  Brazilian  companies  listed  at  the  BMF&Bovespa  had  their  prices  reduced.  The  return  of  main  Brazilian  stock  index,  the 
Ibovespa, recorded -13.31% in 2015 against -2.91% in 2014.

Concerning  the  Structured  Investments  portfolio,  the  main  factor  hindering  return  was  the  investment  in  Real  Estate  Investment  Fund,  which  had  a 
negative return in the period.

(ii)        Private pension plan benefits – Defined contribution

As of December 31, 2015, Sabesprev Mais plan, based on defined contribution, had 5,213 active and assisted participants (5,188 as of December 31, 2014).

With respect to the Sabesprev Mais plan, the contributions from the sponsor represent 100% over the total basic contribution from the participants. In 2015, 
expenses  related  to  the  obligation  of  defined  contribution,  totaling  R$4,028,  R$562  and  R$1,331,  were  allocated  to  operating  costs,  selling  expenses  and 
administrative expenses. The amount of R$633 was capitalized in assets.

Regarding  the  Sabesprev  Mais  plan,  the  commitment  to  all  participants  who  migrated  up  to  December  31,  2015 amounted  to  R$7,907  (R$9,214 as  of
December 31, 2014) referred to active participants. The Company has made contributions in the amount of R$9,472 in 2015 (R$8,936 as of December 31, 
2014).

(iii)          Plan G0

Pursuant to Law 4,819/58, employees who started providing services prior to May 1974 and were retired as an employee of the Company acquired a legal 
right to receive supplemental pension payments, which rights are referred as "Plan G0". The Company pays these supplemental benefits on behalf of the 
State  Government  and  makes  claims  for  reimbursements  from  the  State  Government,  which  are  recorded  as  accounts  receivable  from  related  parties, 
limited  to the  amounts  considered  virtually certain that  will  be reimbursed by  the  State  Government. As  of  December  31,  2015, the Company recorded a 
defined benefit obligation for Plan G0 of R$2,166,942 (R$2,053,527 as of December 31, 2014).

Defined benefit obligation, beginning of year

Current interest expense and service costs

Actuarial gains/(losses) recorded as other comprehensive income

Benefits paid

2015

2,053,527

248,054

24,224

(158,863)

2014

1,780,268

224,931

198,192

(149,864)

Defined benefit obligation, end of the year

2,166,942

2,053,527

The amounts recognized in the income statement are as follows:

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Interest expense and service costs

Amount received from GESP (undisputed amount)

Total expenses

In 2015, the expense related to the defined benefit obligation under Plan G0 was recorded in administrative expenses.

Estimated expenses

Interest cost rates

Total additional expenses to be recognized

The main actuarial assumptions used:

Discount rate – actual rate (NTN-B) 

Inflationrate

Futuresalaryincrease

Mortality table

2015

248,054

(87,232)

160,822

2016

282,118

282,118

2015

2014

2013

7.25% p.a.

6.49% p.a.

8.62% p.a.

AT-2000

6.09% p.a.

6.49% p.a.

8.62% p.a.

AT-2000

6.46% p.a.

5.80% p.a.

7.92% p.a.

AT-2000

The  number  of  active  participants  of  Plan  -  Go  as  of  December  31,  2054  was  15  (22  as  of  December  31,  2014).  The  number  of  beneficiaries,  retirees  and 
survivors as of December 31, 2015 was 2,186 (2,375 as of December 31, 2014). 

The benefit payable from the Go pension plan expected for 2016 is R$178,691.

The sensitivity analysis of defined benefit pension plan as of December 31, 2015 to the changes in the main assumptions is:

Plan – G0

Discount rate

Wages growth rate

Life expectation

Changes in assumption

Impact on presente value of the defined benefit 
obligations

Increase of 1.0% 

Decrease of 1.0% 

Increase of 1.0% 

Decrease of 1.0% 

Increase of 1 year

Decrease of 1year

F-97

Decrease of R$200,278

Increase of R$218,825

Increase of R$225,333

Decrease of R$198,756

Increase of R$86,386

Decrease of R$82,234

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(c)         Profit sharing

The  Company  has  a  profit  sharing  program  in  accordance  with  an  agreement  with  labor  union  and  Sabesp.  The  period  covered  represents  the  Company 
fiscal  year,  commence  in  January  to  December.  The  limit  of  the  profit  sharing  is  one  month  salary  for  each  employee,  depending  on  performance  goals 
reached. As of December 31, 2015, the Program’s balance payable was recorded under “salaries, payroll charges and social contributions” in the amount of 
R$76,634 (R$72,946 as at December 31, 2014).

21           Servicespayable

The  services  account  records  the  balances  payable,  mainly  from  services  received  from  third  parties,  such  as  supply  of  electric  power,  reading  of 
hydrometers  and  delivery  of  water  and  sewage  bills,  cleaning,  surveillance  and  security  services,  collection,  legal  counsel  services,  audit,  marketing  and 
advertising and consulting services, among others. This account also records the amounts payable from the percentage in the revenues of São Paulo local 
government (Note 14 (d) (v)). The balances as of December 31, 2015 and 2014 were R$387,279 and R$318,973, respectively. 

22           Equity 

(a)

Authorized Capital 

The Company is authorized to increase capital by up to R$15,000,000 (R$15,000,000 as of December 31, 2014), based on a Board of Directors' resolution, 
after submission to the Fiscal Council.

In the event of capital increase, issue of convertible debentures and/or warrants by means of private subscription, shareholders will have preemptive right in 
the proportion of number of shares held, pursuant to Article 171 of Law 6,404/76.

(b)

Subscribed and paid-in capital

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

December 31, 2015

December 31, 2014

Number of shares 

% 

Number of shares

State Department of Finance

Companhia Brasileira de Liquidação e Custódia

The Bank Of New York ADR Department (equivalent in shares) (*)

Other

343,524,285

199,719,739

139,637,913

627,932

50,26%

29,22%

20,43%

0,09%

343,524,285

169,000,272

170,351,902

633,410

% 

50.26%

24.73%

24.92%

0.09%

683,509,869

100,00%

683,509,869

100.00%

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(*)          Each ADR corresponds to 1 share. 

(c)

Distribution of earnings

Shareholders are entitled to a minimum mandatory dividend of 25% of the adjusted net income under Brazilian GAAP, calculated according to the Brazilian 
corporate law. The dividends do not bear interest and the amounts not claimed within three years from the date of the Shareholders' Meeting that approved 
them mature in favor of the Company.

Profit for the year

(-) Legal reserve - 5%

2015

536,279

(26,814)

2014

902,983

(45,149)

2013

1,923,559

(96,178)

509,465

857,834

1,827,381

Minimum mandatory dividend – 25% (R$0.1863, R$0.3138 and R$0.6684 as of December 31, 
2015, 2014 and 2013, respectively per share and per ADS)

127,366

214,458

456,845

On April 30, 2015, the Shareholders’ General Meeting approved the distribution of dividends as interest on capital amounting to R$252,304, for the 2014 
fiscal year. Therefore, the amount of R$37,846 related to the surplus minimum mandatory dividends of 25%, set forth in the Bylaws, recorded in the 2014 
equity under “Additional proposed dividends” was transferred to current liabilities. These amounts started being paid in June 2015. 

The  Company  proposed  dividends  as  interest  on  capital  in  the  amount  of  R$127,366,  corresponding  to  R$0.1863  per  common  share,  net  of  withholding 
income tax of R$11,074, to be resolved on the Shareholders’ Meeting to be held on April 29, 2016.

The Company declared dividends payable as interest on capital in the amount of R$127,366, which considers the minimum dividend amount set forth in the 
Bylaws.  The  amount  exceeding  the  minimum  mandatory  dividend  due  in  the  year  of  R$22,527  was  reclassified  into  equity  to  the  “Additional  proposed 
dividends” account, this amount includes the withholding income tax of R$11,074. 

F-99

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Pursuant to CVM Resolution nº 207/1996, the Company imputed interest on capital to the minimum dividend by its net value of withholding income tax. 
The amount of R$11,074 referring to the withholding income tax was recognized in current liabilities, in order to comply with tax liabilities related to the 
credit of interest on capital.

The interest on capital balance payable as of December 31, 2015, totaling R$127,441, refers to the amount of R$127,366 declared in 2015, net of withholding 
income tax and R$75 declared in previous years.

(d)

Capital reserve

The capital reserve includes tax incentives and donations received by the company and was fully capitalized in 2014. 

(e)

Legal reserve

Earnings  reserve  -  legal  reserve  is  a  requirement  for  all  Brazilian  corporations  and  represents  accrual  of  5%  of  annual  net  income  determined  based  on 
Brazilian law, up to  20% of  capital. However, we are  not  required to  make any allocations to our  legal reserve  in a  year  in which the  legal  reserve, when 
added to our other established capital and earnings reserves, exceeds 30% of our capital stock. The amounts allocated to such reserve may only be used to 
increase our capital stock or to offset losses and are not available for the payment of dividends.

(f)

Investments reserve

Earnings reserve - investments reserve is specifically formed by the portion corresponding to own funds assigned to the expansion of the water supply and 
sewage treatment systems, based on capital budget approved by the Management.

As of December 31, 2015 and 2014, the balance of investment reserve totaled R$3,273,580 and R$2,914,008, respectively.

Pursuant  to  Paragraph  four  of  Article  28  of  the  by-laws,  the  Board  of  Directors  may propose  to  the  Shareholders’  Meeting  that  the  remaining  balance  of 
profit  for  the  year,  after  deducting  the  legal  reserve  and  minimum  mandatory  dividends,  be  allocated  to  an  investment  reserve  that  will  comply  with  the 
following criteria: 

I-   its balance, jointly with the balance of the other earnings reserves, except for reserves for contingencies and realizable profits, may not exceed the 

capitalstock; 

II- the reserve is intended to guarantee the investment plan and its balance may be used:

a) to absorb losses, whenever necessary; 

b) to distribute dividends, at any moment; 

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

c) in share redemption, reimbursement or purchase transactions authorized by law; 

d) in incorporation to the capital stock.

(g)         Allocation of profit for the year

Profit

(+)
(-)

(-)

(-)

Profit for the year
Legal reserve – 5%

Minimum mandatory dividends

Additional proposed dividends

Investmentreserverecordedin 2015

2015

2014

2013

536,279
26,814

127,366

22,527

359.572

902,983
45,149

214,458

37,846

605,530

1,923,559
96,178

456,845

80,620

1,289,916

The Management will send for approval at the Shareholders’ Meeting, a proposal to transfer the retained earnings balance, in the amount of R$359,572 to 
the Investment Reserve account, in order to meet the investment needs foreseen in the Capital Budget. 

(h)         Retained earnings

Retained earnings (accumulated losses): the statutory balance of this account is zero as all retained earnings must be distributed or allocated to an earnings 
reserve.

(i)          Other comprehensive income

Gains  and  losses  arising  from  changes  in  the  actuarial  assumptions  are  accounted  for  as  equity  valuation  adjustments,  net  of  income  tax  and  social 
contribution effects. See Note 20 (b), the breakdown of amounts recorded in 2015 and 2014.

Balance as of December 31, 2014

Actuarial gains (losses) for the year (Note 20 (b))

Balance as of December 31, 2015

23           Earnings perShare

Basic and diluted

F-101

G1

G0

Total

4,880

60,590

65,470

(394,628)

(24,224)

(418,852)

(389,748)

36,366

(353,382)

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

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

2015

2014

2013

Equity attributable to Company’s owners

Weighted average number of common shares issued

536,279

683,509,869

902,983

683,509,869

1,923,559

683,509,869

Basic and diluted earnings per share (reais per share)

0.78

1.32

2.81

24          Business segmentinformation

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

(i)    Result  

Gross operating income 

Gross sales deductions

Net operating income 

2015

Water

Sewage

financial statements

financial statements

Reconciliation to the 

Balance as per 

5,045,541

3,901,284

3,336,716

12,283,541

(322,562)

(249,410)

-

(571,972)

4,722,979

3,651,874

3,336,716

11,711,569

Costs, selling and administrative expenses

(3,462,057)

(2,088,065)

(3,263,808)

(8,813,930)

Income  from  operations  before  other  operating  expenses,  net  and  equity 

accounting 

1,260,922

1,563,809

72,908

2,897,639

Other operating income / (expenses), net

Equity results

Financial result, net

Income from operations before taxes

143,755

2,597

(2,456,462)

587,529

Depreciation and amortization

589,066

484,966

-

1,074,032

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Gross operating income 

Gross sales deductions

Net operating income 

2014

Water

Sewage

financial statements

financial statements

Reconciliation to the 

Balance as per 

4,896,657

4,008,678

2,918,036

11,823,371

(335,498)

(274,657)

-

(610,155)

4,561,159

3,734,021

2,918,036

11,213,216

Costs, selling and administrative expenses

(3,929,755)

(2,511,295)

(2,855,516)

(9,296,566)

Income  from  operations  before  other  operating  expenses,  net  and  equity 

accounting 

631,404

1,222,726

62,520

1,916,650

Other operating income / (expenses), net

Equity results

Financial result, net

Income from operations before taxes

(3,488)

(2,453)

(635,866)

1,274,843

Depreciation and amortization

526,876

477,595

-

1,004,471

Gross operating income

Gross sales deductions

Net operating income

2013

Water

Sewage

Reconciliation to the 
financial statements

Balance as per
financial statements

5,276,056

4,263,965

2,444,735

11,984,756

(370,091)

(299,098)

-

(669,189)

4,905,965

3,964,867

2,444,735

11,315,567

Costs, selling and administrative expenses

(3,512,559)

(2,275,437)

(2,394,487)

(8,182,483)

Income  from  operations  before  other  operating  expenses,  net  and  equity 
accounting

1,393,406

1,689,430

50,248

3,133,084

Other operating income (expenses), net

Equity results

Financial result, net

Income from operations before taxes

3,296

2,465

(483,246)

2,655,599

Depreciation and amortization

461,426

409,647

-

871,073

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

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

2015

2014

2013

Gross revenue from construction recognized under IFRIC 12 (a)

Construction costs recognized under IFRIC 12 (a)

3,336,716

(3,263,808)

2,918,036

(2,855,516)

2,444,735

(2,394,487)

Construction margin

72,908

62,520

50,248

(a) Revenue from concession construction contracts is recognized in accordance with IAS 11, Construction Contracts, using the percentage-of-completion 

method. See Note 14 (c) and (f).

(ii)    Intangible

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Companhia de Saneamento Básico do Estado de São Paulo - SABESP

Reportable segment’s intangible assets are reconciled to total assets as follows:

Intangible asset:

Water supply

Sewage services

Segmentassetsfor reportablesegments

Otherintangibleassets

Total intangible assets

There are no liabilities allocated to the reportable segments.

25          OperatingRevenue

(a)    Revenue from water and sewage services:

Metropolitan region of São Paulo

Regional Systems (i) 

Total (ii)

December 31, 2015

December 31, 2014

11,811,976

14,253,815

10,289,735

13,492,613

26,065,791

23,782,348

2,447,835

2,197,178

28,513,626

25,979,526

2015

2014

2013

6,021,949

2,924,876

8,946,825

6,235,276

2,670,059

8,905,335

6,984,364

2,555,657

9,540,021

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

(ii)          The gross operating revenue from water and sewage, totaling R$8,946,825, not including construction revenue, increased by R$41,490, or 0.5%, 

when compared to the R$8,905,335 recorded in 2014.

The main factors responsible for the increase were the 6.5% repositioning tariff index since December 2014, 15.2% tariff adjustment (7.8% ordinary tariff 
adjustment and 6.9% extraordinary tariff revision) since June 2015 and the application of Contingency Tariff, with a R$499,730 impact in 2015.

The  increase  in  gross  operating  revenue  was  mitigated  by  higher  bonus  granted  within  the  Water  Consumption  Reduction  Incentive  Program,  with  a 
R$926,057 impact in 2015, (R$376,414 in 2014) and the decrease of 6.8% in the Company’s total billed volume.

F-105

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

In 2014, revenue from water and sewage services decreased by 6.7% as of December 31, 2014 over 2013, due to the Incentive Program for Reduction of 
Water Consumption (Bonus) and the 2.2% decrease in the Company’s total billed volume.

• SABESP’s Incentive Program for Reduction of Water Consumption (Bonus)

On October 22, 2014, ARSESP published the Resolution nº 514 which approves the bonus by consumption reduction levels for SABESP’s Incentive Program 
to Reduce Water Consumption.

The bonus by consumption reduction levels during the effectiveness period of the Incentive Program for Reduction of Water Consumption was as follows:

(a)  Thirty percent (30%) bonus for users whose monthly consumption decreased by at,

least, twenty percent  (20%) in relation to the average

consumption of the period between February 2013 and January 2014.

(b) Twenty percent (20%) bonus for users whose monthly consumption exceeds or is equal to fifteen percent (15%) and lower than twenty percent (20%)

in relation to the average consumption in the period between February 2013 and January 2014.

(c)  Ten percent (10%) bonus for users whose monthly consumption exceeds or  is  equal to ten percent (10%) and lower than fifteen percent (15%) in

relation to the average consumption of the period between February 2013 and January 2014.

The bonus by consumption reduction levels has been applied to all the municipalities that currently already receive such bonus over the water and sewage 
collected amounts.

Such measure included residential, commercial, industrial and public until December 2015.

The bonus for 2015 was R$926,057 (R$376,414 in 2014).

In  December  2015,  Resolution  no.  615  was  published,  authorizing  the  extension  of  the  validity  of  SABESP’s  Water  Consumption  Reduction  Incentive 
Program to December 31, 2016. The update of the reference consumption to obtain the bonus was also approved.

For  bills  with  consumption  metered  after  February  1,  2016,  the  update  of  the  reference  consumption  for  the  calculation  of  the  bonus  was  authorized 
applying a factor of zero point seven eight (0.78) to average consumption between February 2013 to January 2014. 

The other rules and conditions of the Program not amended by this Resolution were maintained, including regarding the scaling of the 10%, 20% and 30% 
bonus ranges, according to the savings made considering the updated reference consumption.

The extension applies to all municipalities currently receiving the bonus, as a result of the abovementioned Program.

• Adoption of contingency tariff

F-106

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

On January 7, 2015, ARSESP published the Resolution nº 545, through which it authorizes the contingency tariff to the users whose monthly consumption 
exceeds the average seen in the period between February 2013 and January 2014, as follows:

(i)

40% addition over the tariff amount, applicable to the water consumption to exceed until 20% of average; or

(ii)

100% addition over the tariff amount, applicable to the water consumption to exceed more than 20% of average.

All the users are subject to the contingency tariff, including those with firm demand contracts, except for the following cases:

(i)

(ii)

those with water monthly consumption lower than or equal to 10 m³; and

hospitals,  first-aid  clinics,  nursing  homes,  police  stations,  prisons,  detention  facilities  and  centers  of  Fundação  CASA  (social  and  educational 
treatment center for adolescents).

The contingency tariff was valid for consumption measured as of the publication of Resolution until December 31, 2015, totaling R$499,730 in 2015.

In  December  2015,  ARSESP  published  Resolution  no.  614,  which  provides  for  the  extension  of  the  validity  of  ARSESP  Resolution  no.  545,  as  well  as the 
criteria, rules and conditions established therein for SABESP to charge the contingency tariff, aiming reducing water consumption due to the severe scarcity 
of water resources.

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

Revenue from water and sewage services

Construction revenue (Note 14 (c))

Sales tax

Net revenues

Operating Costs and Expenses

Operatingcosts

Salaries and payroll charges

Pension obligations

Construction costs (Note 14 (c))

General supplies

Treatment supplies

Outside services

Electricity

General expenses

Depreciation and amortization

Selling expenses

Salaries and payroll charges

Pension obligations

General supplies

Outside services

Electricity

General expenses

Depreciationandamortization

Allowance for doubtful accounts, net of recoveries (Note 9 (c))

Administrative revenue (expenses) 

Salaries and payroll charges

Pension plan

GESP reimbursement – benefits paid (Note 10 (a) (vii))

General supplies

Outside services

Electricity

General expenses

Depreciationandamortization

2015

2014

2013

8,946,825

3,336,716

(571,972)

11,711,569

8,905,335

2,918,036

(610,155)

11,213,216

9,540,021

2,444,735

(669,189)

11,315,567

2015

2014

2013

1,503,383

75,247

3,263,808

172,561

269,294

791,156

815,164

369,213

1,000,937

8,260,763

237,848

9,761

3,692

247,687

770

86,064

9,883

2,420

598,125

182,215

185,206

(696,283)

2,340

123,802

1,596

11,467

63,212

1,494,147

47,855

2,855,516

191,723

261,205

856,960

597,454

404,367

926,372

1,348,933

59,237

2,394,487

179,771

240,730

786,515

551,630

444,663

810,297

7,635,599

6,816,263

236,109

6,225

4,549

252,628

579

86,590

10,339

139,589

736,608

180,845

158,114

-

5,861

205,341

1,032

228,737

67,760

215,083

8,470

6,995

208,943

557

82,470

10,721

103,864

637,103

176,845

118,600

-

6,700

116,735

694

183,874

50,055

Taxexpenses

Operating costs and expenses

Salaries and payroll charges

Pension plan

GESP reimbursement – benefits paid (Note 10 (a) (vii))

Construction costs (Note 14 (c))

General supplies

Treatment supplies

Outside services

Electricity

General expenses

Depreciationandamortization

Taxexpenses

Allowance for doubtful accounts, net of recoveries (Note 9 (c)) 

81,487

(44,958)

1,923,446

270,214

(696,283)

3,263,808

178,593

269,294

1,162,645

817,530

466,744

1,074,032

81,487

2,420

8,813,930

76,669

924,359

1,911,101

212,194

-

2,855,516

202,133

261,205

1,314,929

599,065

719,694

1,004,471

76,669

139,589

9,296,566

75,614

729,117

1,740,861

186,307

-

2,394,487

193,466

240,730

1,112,193

552,881

711,007

871,073

75,614

103,864

8,182,483

F-107

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

27           FinancialIncome (Expenses)

Financial expenses

Interest and charges on borrowings and financing – local currency (i)

Interest and charges on borrowings and financing – foreign currency (ii)

Other financial expenses (iii)

Income tax over international remittance

Inflation adjustment on borrowings and financing (iv)

Inflation adjustment on Sabesprev Mais deficit

Other inflation adjustments (v)

Interest and inflation adjustments on provisions (vi)

Total financial expenses

Financial income

Inflation adjustment gains (vii)

Income on short-term investments (viii)

Interest income (ix)

Cofins and Pasep 

Other (x)

Total financial income 

2015

2014

2013

(326,315)

(127,352)

(149,902)

(20,389)

(171,735)

(1,529)

(20,594)

(41,916)

(859,732)

166,887

170,551

44,358

(7,947)

21,385

395,234

(272,975)

(92,180)

(104,060)

(14,334)

(98,309)

(1,169)

(10,597)

(118,669)

(712,293)

91,930

202,898

125,757

-

2,147

422,732

(294,729)

(84,648)

(62,882)

(10,662)

(72,657)

(1,334)

(5,731)

(70,267)

(602,910)

85,245

151,106

149,759

-

-

386,110

Financial income (expenses), net before exchange rate changes

(464,498)

(289,561)

(216,800)

Net exchange gains (losses)

Exchange rate changes on borrowings and financing (xi)

Other exchange rate changes

Exchange gains

Exchange rate changes, net

(1,992,019)

(345,105)

(267,835)

(720)

775 

(625)

(575)

(6)

1,395

(1,991,964)

(346,305)

(266,446)

Financial income (expenses), net

(2,456,462)

(635,866)

(483,246)

F-108

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(i)      Expenses related to local currency-denominated borrowings and financing interest increased in 2015 mainly due to the variation of the floating 
interest rates that remunerate these contracts. The main variations were in the average CDI rate and in the long-term interest rate (TJLP), of 
13.2% and 7.0%, respectively, in 2015 (10.8% and 5.0% in 2014 and 8.0% and 5.0%, respectively, in 2013). The debt balance also increased due 
to the 19th Debenture Issue in June 2014.

(ii)     The increase in expenses related to foreign currency-denominated borrowings and financing interest mainly reflect the increased balance of
debt due to the appreciation of the US dollar and the yen, of 47.0% and 45.9%, respectively, in 2015 (13.4% appreciation of the US dollar and 
0.4% depreciation of the yen, in 2014 and 14.6% appreciation of the US dollar and 5.9% depreciation of the yen, in 2013). 

(iii)   Other financial expenses increased in 2015, especially due to the adjustment of the PPP agreement of Sistema Produtor Alto Tietê – CAB, in the 
amount of R$13.6 million, present value adjustment of court-ordered debt payments, in the amount of R$10.7 million and the startup of SPE 
Sanevap  São  José  dos  Campos  in  January  2015,  in  the  amount  of  R$8.6  million.  After  the  start-up,  pursuant  to  IAS  23,  the  interest  rates 
appropriated to the payment to SPEs are recognized as financial expense 

(iv)   The inflation adjustments derives from increase in the indexes defined in the loan agreements, such as TR and IPCA, corresponding to 1.8% and 

10.7%, respectively, in 2015 (0.9% and 6.4% in 2014 and 0.2% and 5.9% in 2013, respectively). 

(v)    Other inflation  adjustments expenses are mainly adjustments to liabilities referring to investment commitments required by private-public
partnerships, program contracts which are indexed by IPC/FIPE and IPCA/IBGE of 11.1% and 10.7%, respectively, in 2015 (5.2% and 6.4% in 
2014 and 3.9% and 5.9% in 2013, respectively).

F-109

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(vi)   In 2015, the variation mainly derives from the lower monetary restatement in 2015 due to the revision of the estimate of likelihood of loss of 
the provisions for risks. In 2014, the variation mainly derives from the update of customers and environmental lawsuits which are adjusted for 
inflation by the court of justice’s table, considering the consumer price index INPC/IBGE variation which stood at 6.3% in 2014 and 5.6% in 
2013.

(vii)  The variation mainly derives from the monetary restatement of the agreement with the government of the state of São Paulo, entered into in 
2015 (Note 10 (a) (vii)), the monetary restatement of the escrow deposits by the INPC/IBGE, which varied 10.9% in 2015, versus 6.3% in 2014 
and 5.6% in 2013 and the monetary restatement of agreements paid in installments.

(viii)  In  2015,  the  decrease  was  due  to  the  reduced  average  balance  of  financial  investments  versus  2014.  In  2014,  the  increase  in  financial 
investments was due to the Company that kept the amounts invested within a longer term than in 2013, and the market’s higher interest rates 
which positively impacted the income earned in 2014.

(ix)   In 2015, the decrease is mainly due to lower recognition of interest on agreements and installment payments. In 2014, the variation is mainly 

due to interest rates on agreements and installment payments.

(x)     R$19 million increase in other revenue, R$14 million of which from the appreciation of the 2,221,000 CTEEP shares transferred to SABESP as 

part of the payment agreed with the state government; and R$5 million from the receipt of dividends related to these shares.

(xi)    Higher  expenses  mainly  reflect  the  increase  in  the  debt  balance  due  to  the  US  dollar  and  the  Yen  appreciation,  of  47.0%  and  45.9%, 
respectively, in 2015 (13.4% of US dollar and 0.4% depreciation of the Yen in 2014 and 14.6% of US dollar and 5.9% depreciation of the Yen in 
2013).

OtherOperatingIncome(expenses),net

Other operating income, net (i)

Other operating expenses (ii)

Other operating income (expenses)

2015

2014

2013

190,840

(47,085)

109,329

(112,817)

57,382

(54,086)

143,755

(3,488)

3,296

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

F-110

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

(i)

Other  operating  income  increased  by  R$81.5  million  in  2015,  mainly  due  to  sale  of  properties,  in  the  amount  of  R$48  million  and  higher 

amounts received from the Hydrographic Basin Depollution Program, in the amount of R$41 million.

Other operating expenses consist mainly of derecognition of concessions due to obsolescence, discontinued construction works, unproductive wells, projects 
considered economically   unfeasible, losses on property,plantandequipment and exceeding cost of electricity sold.

(ii)

Other operating expenses decreased by R$65.7 million in 2015, mainly due to higher provision for the write-off of works, projects and obsolete 

assets in 2014, totaling R$58.8 million.

29          Commitments

The Company has agreements to manage and maintain its activities, as well as agreements to build new projects aiming at achieving the objectives proposed 
in its target plan. Below, the main committed amounts as of December 31, 2015 are as follows:

1 year

1-3 years

3-5 years

More than 

5 years

Total

Contractual obligations - Expenses 

Contractual obligations - Investments

Total

1,337,822

1,955,717

3,293,539

921,402

2,208,859

3,130,261

238,360

1,130,238

1,368,598

1,345,403

6,295,689

7,641,092

3,842,987

11,590,503

15,433,490

The main commitment refers to São Lourenço PPP. See Note 14 (h).

30          Supplemental cashflow information

Total additions to intangible assets as (Note 14 (b))

3,604,442

3,236,781

2,750,319

Items not affecting cash (see breakdown below)

(1,207,090)

(577,924)

(445,288)

Total additions to intangible assets as per statement of cash flows

2,397,352

2,658,857

2,305,031

2015

2014

2013

Investments and financing operations affecting intangible assets but not cash:

Interest capitalized in the year (Note 14 (e))

Contractors payable

Program contract commitments

Public Private Partnership – São Lourenço PPP (Note 14 (h)) 

Leases

Construction margin (Notes 14 (f) and 24)

Other 

Total

F-111

466,544

(57,041)

136,543

548,978

36,877

72,908

2,281

1,207,090

278,265

48,547

62,250

22,245

104,097

62,520

-

577,924

205,012

(4,887)

28,197

-

166,718

50,248

-

445,288

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

31           Events after the reportingperiod

• Santa Isabel

Since January 4, 2016, SABESP has become responsible for providing sanitation services in Santa Isabel, a municipality with more than 50,000 inhabitants. 
The agreement, signed on August 5, 2015, is valid for 30 years.

• Authorization to increase the water outflow limit in the Cantareira System

The Water National Agency– ANA and DAEE, authorized, since February 2016, the increase in the water outflow in the Cantareira System, from 13.5 m³/s 
in October 2015 to 23 m³/s. 

• Memorandum of understanding with the municipalities of Guarulhos and Mauá

In January 2016, the Company entered into a Memorandum of Understanding with the municipalities of Guarulhos and Mauá, in order to prepare studies 
and evaluations to govern commercial relations and debts between the municipalities and the Company.

• Extraordinary partial amortization of the 19th Debenture Issue

On March 30, 2016, the Company will partially amortize the outstanding debentures of the 19th Issue upon payment of 60% of the Nominal Unit Value of 
the  Debentures,  totaling  R$300,000,  plus  remuneration,  pro  rata  temporis,  from  the  last  date  of  payment  of  remuneration  and  other  charges  due  and 
unpaid, to March 30, 2016, without any increase received as premium. The payment of the extraordinary partial amortization will include all outstanding 
debentures, proportionally, using the procedures adopted by CETIP S.A. - Mercados Organizados ("CETIP"), for debentures electronically deposited at the 
CETIP, or the procedures to be indicated by Itaú Unibanco S.A., as bookkeeper, for the debentures not deposited electronically at the CETIP.

F-112

Companhia de Saneamento Básico do Estado de São Paulo - SABESP

• Request to cancel the Bonus and the Contingency Tariff

On March 24, 2016, the Board of Directors authorized the Company to request with ARSESP the cancellation, based on consumption metered after May 1, 
2016, of the Water Consumption Reduction Incentive Program by means of a Bonus in Water and Sewage Bills – Bonus, as well as the Contingency Tariff 
levied on water bills. On the same date, the Company filed this request with ARSESP.

• Authorization to cancel the Bonus and the Contingency Tariff

On March 31, 2016, ARSESP published the following Resolutions: 

 Resolution nº 640 authorizing the cancellation, starting from consumption readings beginning on May 1, 2016 of the Contingency Tariff, applied 

to the water bill; and 

 Resolution  nº  641  authorizing  the  cancellation,  starting  from  consumption  readings  beginning  on  May  1,  2016,  of  the  Water  Consumption 

Reduction Incentive Program, which granted a discount bonus to the water and sewage bill – Bonus.

• Tariff adjustment

On April 11, 2016 the São Paulo State Energy and Sanitation Regulatory Agency (ARSESP) published ARSESP Resolution 643, authorizing SABESP to apply 
an 8.4478% tariff adjustment index in relation to current tariffs, as of May 12, 2016.

• CTEEP

On April 20, 2016 the Company sold the 2,221,000 preferred shares issued by the São Paulo Company of Electric Power Transmission (Companhia de 
Transmissão de Energia Elétrica Paulista – CTEEP), totaling R$111.1 million, based on the share closing price on that date.

• General Shareholders Meeting 

On April 29, 2016 it was held the Annual Shareholders’ Meeting.

F-113

CERTIFICATION

EXHIBIT 12.1

I, Jerson Kelman, certify that:

1.

2.

I have reviewed this annual report on Form 20-F of Companhia de Saneamento Básico do Estado de São Paulo - Sabesp; 

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 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)

b)

c)

d)

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; 

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; 

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 
evaluation; and 

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. 

5.

The company’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial 
reporting,  to  the  company’s  auditors  and  to  the  audit  committee  of  the  company’s  board  of  directors  (or  persons  performing  the 
equivalent function):

a)

b)

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 

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.

Date: May 11, 2016

By:          /s/  Jerson Kelman        
Name:    Jerson Kelman
Title:      Chief Executive Officer

EXHIBIT 12.2

I, Rui de Britto Álvares Affonso, certify that:

CERTIFICATION

1.

2.

I have reviewed this annual report on Form 20-F of Companhia de Saneamento Básico do Estado de São Paulo - Sabesp; 

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 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)

b)

c)

d)

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; 

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; 

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 
evaluation; and 

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. 

5.

The company’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial 
reporting,  to  the  company’s  auditors  and  to  the  audit  committee  of  the  company’s  board  of  directors  (or  persons  performing  the 
equivalent function):

a)

b)

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 

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.

Date: May 11, 2016

By:          /s/   Rui de Britto Álvares Affonso        
Name:    Rui de Britto Álvares Affonso
Title:      Chief Financial Officer and Investor Relations Officer

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE U.S. SARBANES-OXLEY ACT OF 2002

EXHIBIT 13.1

In connection with the Annual Report of Companhia de Saneamento Básico do Estado de São Paulo – Sabesp (the “Company”) on Form 
20-F for the fiscal year ended December 31, 2015, as filed with the U.S. Securities and Exchange Commission on the date hereof (the 
“Report”), I, Jerson Kelman, Chief Executive Officer, certify, pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of 
the U.S. Sarbanes Oxley Act of 2002, that to the best of my knowledge: 

(i)

the Report fully complies with the requirements of section 13(a) or 15(d) of the U.S. Securities Exchange Act of 1934; and

(ii)

the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of 
the Company.

Date: May 11, 2016

By:          /s/Jerson Kelman         
Name:    Jerson Kelman
Title:      Chief Executive Officer

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE U.S. SARBANES-OXLEY ACT OF 2002

EXHIBIT 13.2

In connection with the Annual Report of Companhia de Saneamento Básico do Estado de São Paulo – Sabesp (the “Company”) on Form 
20-F for the fiscal year ended December 31, 2015, as filed with the U.S. Securities and Exchange Commission on the date hereof (the 
“Report”),  I,  Rui  de  Britto  Álvares  Affonso,  Chief  Financial  Officer  and  Investor  Relations  Officer,  certify,  pursuant  to  18  U.S.C. 
section 1350, as adopted pursuant to section 906 of the U.S. Sarbanes Oxley Act of 2002, that to the best of my knowledge: 

(i)

the Report fully complies with the requirements of section 13(a) or 15(d) of the U.S. Securities Exchange Act of 1934; and

(ii)

the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of 
the Company.

Date: May 11, 2016

By:          /s/ Rui de Britto Álvares Affonso      
Name:    Rui de Britto Álvares Affonso
Title:      Chief Financial Officer and Investor Relations Officer