Election of the Members of the Board of Directors and Fiscal Council

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

ELECTION OF THE MEMBERS OF THE BOARD OF DIRECTORS AND FISCAL COUNCIL

(a) Board of Directors

The Company's Management recommends the election of the following candidates for the positions of member and Chairman of the Board of Directors, all of them with a term of office up to the date in which the Annual Shareholders Meeting of 2018 shall be held:

Name Title Benedito Pinto Ferreira Braga Chairman of the Board of Directors Junior Francisco Vidal Luna Sitting Member of the Board of Directors Jerônimo Antunes Sitting Member of the Board of Directors Reinaldo Guerreiro Sitting Member of the Board of Directors Jerson Kelman Sitting Member of the Board of Directors

The Company requests the non-controlling shareholders who wish to designate other candidates for election as member of the Board of Directors to send to the Financial-Economic and Investor Relations Office the information regarding the respective candidates as provided for in Exhibit D to this Proposal, including the curriculum and the representations relating to criminal and administrative conviction by the Securities Commission - CVM for the last Five (5) years.

However, in case no candidate is designated for election as member of the Board of Directors up to the date of the Annual and Special Shareholders Meeting - AGOE, the shareholders may submit their respective candidates in the course of the AGOE, and such designations shall be accompanied by the documents and information indicated above to be made available to the other attending shareholders.

(b) Fiscal Council

The Company's Management recommends the election of the following candidates for the positions of members of the Fiscal Council of the Company with a term of office up to the date in which the Annual Shareholders Meeting of 2017 shall be held:

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

Name Title Joaldir Reynaldo Machado (sitting) Fiscal Council Member Humberto Macedo Puccinelli (sitting) Fiscal Council Member Rui Brasil Assis (sitting) Fiscal Council Member José Alexandre Pereira (sitting) Fiscal Council Member Tomas Bruginski de Paula (alternate) Fiscal Council Member José Rubens Gozzo Pereira (alternate) Fiscal Council Member Enio Marrano Lopes (alternate) Fiscal Council Member Sandra Maria Giannella (alternate) Fiscal Council Member

The candidates recommended by the Management for the positions of members of the Board of Directors and the Fiscal Council complied with the profile of the candidates provided for in article 22 of the Company’s Bylaws, all of them having professional, technical or administrative skills, experience compatible with the position, moral good standing and unblemished reputation.

The information required by Article 10 of CVM Ruling No. 481/09 on the candidates to members of the Board of Directors and the Fiscal Council are included in Exhibit D to this proposal.

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

EXHIBIT D: INFORMATION ON CANDIDATES TO THE POSITIONS OF MEMBER OF THE BOARD OF DIRECTORS AND FISCAL COUNCIL (ITEMS 12.5 TO 12.10 OF THE REFERENCE FORM)

12.5 Regarding each one of the managers and members of the fiscal council of the issuer, please indicate, in the table format:

12.5(a) Name Francisco Vidal Luna 12.5(b) Date of Birth July 11, 1946 12.5(c) Occupation Economist 12.5(d) Individual Taxpayers Register - CPF 031.950.828-53 12.5(e) Elective Position filed Board of Directors (Sitting Member) 12.5(f) Estimated Date of election April 29, 2016 12.5(g) Estimated Date for investiture May 12, 2016 12.5(h) Term of Office April 2018 12.5(i) Other positions or functions exercised at the Member of the Audit Committee issuer 12.5(j) Proposed by the controlling company or not Yes 12.5(k) Independent Member/ criteria used by the Yes

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

issuer to determine independence 12.5(l) Number of consecutive terms of office 02 12.5(m) Information on (i) main professional Mr. Luna is an independent member of the Company’s Board of Directors and member of the Audit experiences during the last 5 years, designating: (1) Committee since April 2013. He is PhD in Economics from the Economics, Administration and Accounting College of the University name and activity sector of the company; (2) position; of São Paulo (Faculdade de Economia, Administração e Contabilidade da Universidade de São Paulo) and (3) if the company integrates (i) the issuer’s and is a retired professor of the same university. In the public sector, he has exercised the position of economic group or (ii) is controlled by the issuer’s Secretary of Economics and Planning of the Government of the State of São Paulo, Secretary of Planning shareholder holding a direct or indirect equity interest of the Municipal Government of São Paulo, Special Secretary for Economic Affairs of the Ministry of Planning, Superintendent of the Planning Institute equal to or above 5% of the same class or kind of (IPLAN/IPEA) of the Ministry of Planning, member of the Board of Directors of the National Bank for security of the issuer; and (ii) designation of all other Economic and Social Development (BNDES) and member of the Advisory Board of the Development management positions occupied in other third sector Superintendency of the Northeast (SUDENE). In the private sector, he acted as Chief Executive Officer of organizations or companies Banco Inter American Express S.A. Currently, Mr. Luna is a member of the Board of Directors and the Audit Committee of Desenvolve SP, member of the Board of Directors of Gafisa S.A, Chairman of the Board of Directors of IDBRASIL which manages the Soccer Museum and the Portuguese Language Museum, and Afro Brasil Museum, member of the Board of Curators of Padre Anchieta Foundation and member of the Advisory Board of the Medical School Foundation (Fundação Faculdade de Medicina – FFM). 12.5(n) Description of any of the following events In the last 5 years, there was no criminal conviction even if not final and unappealable, no sentencing in which have occurred during the last 5 years: (i) any administrative proceedings of CVM even if not final and unappealable and no final and unappealable criminal conviction; (ii) any sentencing in judgment at judicial or administrative level which has prevented or disaccredited him from exercising any administrative proceedings of CVM and the penalties professional or business activity.

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

applied; and (iii) any final and unappealable judgment at judicial or administrative level which has prevented or disaccredited from exercising any professional or business activity

12.5(a) Name Jerônimo Antunes 12.5(b) Date of Birth November 18, 1955 12.5(c) Occupation Accountant and Business Administrator 12.5(d) Individual Taxpayers Register - CPF 901.269.398-53 12.5(e) Elective Position filed Board of Directors (Sitting Member) 12.5(f) Estimated Date of election April 29, 2016 12.5(g) Estimated Date for investiture May 12, 2016 12.5(h) Term of Office April 2018 12.5(i) Other positions or functions exercised at the Member of the Audit Committee issuer 12.5(j) Proposed by the controlling company or not Yes 12.5(k) Independent Member/ criteria used by the Yes issuer to determine independence 12.5(l) Number of consecutive terms of office 04

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.5(m) Information on (i) main professional Mr. Antunes is an independent member of the Board of Directors of the Basic Sanitation Company of the experiences during the last 5 years, designating: (1) State of São Paulo (Sabesp) and coordinator of the Audit Committee since April 2008. He graduated in Business Administration and Accounting and has a masters degree and PhD in Accounting and name and activity sector of the company; (2) position; Controllership by the University of São Paulo, where he has acted since 1999 as public service professor. and (3) if the company integrates (i) the issuer’s He has also been a professor of several MBA courses of the Economics, Administration and Accounting economic group or (ii) is controlled by the issuer’s College of the University of São Paulo (FEA-USP) since 1999, of the Financial, Actuarial Science and shareholder holding a direct or indirect equity interest Accounting Researches Institute Foundation (FIPECAFI) since 2000 and of the Management Institute equal to or above 5% of the same class or kind of Foundation (FIA) since 2006, among other institutions. Mr. Antunes acts as independent auditor since security of the issuer; and (ii) designation of all other 1977, as expert and technical assistant in accounting expert investigations since 2005, and he is the management positions occupied in other third sector chairman of the Audit Committee of Desenvolve SP since May 2013, Independent Director (alternate) of Petróleo Brasileiro S.A. – Petrobras, Independent Director of Petrobras Distribuidora S.A. and member of organizations or companies the Audit Committee and of the Succession and Remuneration Committee of Petróleo Brasileiro S.A. – Petrobras since July 2015. He was an executive officer of the Financial, Actuarial Science and Accounting Researches Institute Foundation (FIPECAFI), of the Brazilian Concrete Institute (IBRACON) and of the National Finance Executive Association (ANEFAC). 12.5(n) Description of any of the following events In the last 5 years, there was no criminal conviction even if not final and unappealable, no sentencing in which have occurred during the last 5 years: (i) any administrative proceedings of CVM even if not final and unappealable and no final and unappealable criminal conviction; (ii) any sentencing in judgment at judicial or administrative level which has prevented or disaccredited him from exercising any administrative proceedings of CVM and the penalties professional or business activity. applied; and (iii) any final and unappealable judgment at judicial or administrative level which has prevented or disaccredited from exercising any professional or business activity

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.5(a) Name Reinaldo Guerreiro 12.5(b) Date of Birth February 10, 1953 12.5(c) Occupation Economist 12.5(d) Individual Taxpayers Register - CPF 503.946.658-72 12.5(e) Elective Position filed Board of Directors (Sitting Member) 12.5(f) Estimated Date of election April 29, 2016 12.5(g) Estimated Date for investiture May 12, 2016 12.5(h) Term of Office April 2018 12.5(i) Other positions or functions exercised at the Member of the Audit Committee issuer 12.5(j) Proposed by the controlling company or not Yes 12.5(k) Independent Member/ criteria used by the Yes issuer to determine independence 12.5(l) Number of consecutive terms of office 06 12.5(m) Information on (i) main professional Mr. Guerreiro is an independent member of the Board of Directors of the Basic Sanitation Company of the experiences during the last 5 years, designating: (1) State of São Paulo (Sabesp) and member of the Audit Committee since January 2007. He has a PhD in Accounting and Controllership and has a masters degree in Accounting and Controllership and graduated name and activity sector of the company; (2) position; in Accounting Science from the Economics, Administration and Accounting College of the University of and (3) if the company integrates (i) the issuer’s São Paulo (FEA-USP). economic group or (ii) is controlled by the issuer’s Mr. Guerreiro is a full professor at FEA-USP, specialized advisor in business economic management,

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

shareholder holding a direct or indirect equity interest researcher of the National Counsel of Technological and Scientific Development (CNPQ), author of equal to or above 5% of the same class or kind of several managerial accounting books, and has published several scientific articles in Brazilian and international magazines. Mr. Guerreiro was the Headmaster of FEA-USP and has worked in several security of the issuer; and (ii) designation of all other projects in the financial management, costs, budgets and information systems areas of several companies management positions occupied in other third sector such as Banco do Brasil, Caixa Econômica Federal, Previ and for the Government of São Paulo – GESP. organizations or companies Other than Sabesp, the director has not filled the position of manager in publicly-held companies. 12.5(n) Description of any of the following events In the last 5 years, there was no criminal conviction even if not final and unappealable, no sentencing in which have occurred during the last 5 years: (i) any administrative proceedings of CVM even if not final and unappealable and no final and unappealable criminal conviction; (ii) any sentencing in judgment at judicial or administrative level which has prevented or disaccredited him from exercising any administrative proceedings of CVM and the penalties professional or business activity. applied; and (iii) any final and unappealable judgment at judicial or administrative level which has prevented or disaccredited from exercising any professional or business activity

12.5(a) Name Benedito Pinto Ferreira Braga Jr 12.5(b) Date of Birth July 15, 1947 12.5(c) Occupation Civil Engineer 12.5(d) Individual Taxpayers Register - CPF 550.602.698-68 12.5(e) Elective Position filed Chairman of the Board of Directors

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.5(f) Estimated Date of election April 29, 2016 12.5(g) Estimated Date for investiture May 12, 2016 12.5(h) Term of Office April 2018 12.5(i) Other positions or functions exercised at the He does not exercise another position or function at the Issuer issuer 12.5(j) Proposed by the controlling company or not Yes 12.5(k) Independent Member/ criteria used by the No issuer to determine independence 12.5(l) Number of consecutive terms of office 01 12.5(m) Information on (i) main professional Mr. Braga has been the Chairman of the Board of Directors of Sabesp and State Secretary of Sanitation experiences during the last 5 years, designating: (1) and Water Resources since January 2015. He graduated in Civil Engineering from the Engineering School of São Carlos of the University of São Paulo (USP), he has a masters degree in Hydrology from Stanford name and activity sector of the company; (2) position; University, a masters degree in Hydraulics from the Polytechnic School of USP and a PhD in Hydric and (3) if the company integrates (i) the issuer’s Resources from Stanford University. economic group or (ii) is controlled by the issuer’s He is a Professor of Environmental and Civil Engineering of the Polytechnic School of USP and develops shareholder holding a direct or indirect equity interest technical-scientific works in the hydric resources management and planning area focused on the resolution of conflicts with multiple goals. He is also the chairman of the World Water Council (WWC) being in equal to or above 5% of the same class or kind of charge of the World Water Forums of the Hague, Kyoto, Mexico and Istanbul, and chairman of the security of the issuer; and (ii) designation of all other International Forum Committee. Mr. Braga was the chairman of the Intergovernmental Board of the management positions occupied in other third sector International Hydrologic Program of UNESCO, from 2009 to 2010, he was part of the Collegiate organizations or companies Executive Office of the National Water Agency (ANA) as from its creation in 1999 up to 2009 and was the president of the International Water Resources Association (IWRA) from 1998 to 2000. Other than

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

Sabesp, the director has not filled the position of manager in publicly-held companies. 12.5(n) Description of any of the following events In the last 5 years, there was no criminal conviction even if not final and unappealable, no sentencing in which have occurred during the last 5 years: (i) any administrative proceedings of CVM even if not final and unappealable and no final and unappealable criminal conviction; (ii) any sentencing in judgment at judicial or administrative level which has prevented or disaccredited him from exercising any administrative proceedings of CVM and the penalties professional or business activity. applied; and (iii) any final and unappealable judgment at judicial or administrative level which has prevented or disaccredited from exercising any professional or business activity

12.5(a) Name Jerson Kelman 12.5(b) Date of Birth January 17,1948 12.5(c) Occupation Civil Engineer 12.5(d) Individual Taxpayers Register - CPF 155.082.937-87 12.5(e) Elective Position filed (Sitting) Director and Chief Executive Officer 12.5(f) Estimated Date of election April 29, 2016 12.5(g) Estimated Date for investiture May 12, 2016 12.5(h) Term of Office April 2018 12.5(i) Other positions or functions exercised at the He does not exercise another position or function at the Issuer issuer

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.5(j) Proposed by the controlling company or not Yes 12.5(k) Independent Member/ criteria used by the No issuer to determine independence 12.5(l) Number of consecutive terms of office 01 12.5(m) Information on (i) main professional Mr. Kelman was elected Chief Executive Officer of the Company on January 9, 2015 and was vested on experiences during the last 5 years, designating: (1) the same date for a term of office up to June 2017. He is a civil engineer specialized in hydraulics from the name and activity sector of the company; (2) position; Engineering School of the Federal University of Rio de Janeiro (UFRJ), he has a Masters Degree in Civil and (3) if the company integrates (i) the issuer’s Engineer from Alberto Luiz Coimbra Institute of Engineering Research and Graduate Education (COPPE- economic group or (ii) is controlled by the issuer’s UFRJ) and a PhD in Hydrology and Hydric Resources from Colorado State University. Mr. Kelman has shareholder holding a direct or indirect equity interest also been a professor of Hydric Resources of COPPE-UFRJ since 1974 and was the president of the equal to or above 5% of the same class or kind of National Water Agency, General Director of the National Electric Energy Agency, president of Light security of the issuer; and (ii) designation of all other Group from 2010 to 2012, Intervener at Enersul, member of the National Energetic Policy, Environmental management positions occupied in other third sector and Hydric Resources Boards, as well as of several panels, whether in Brazil or abroad. organizations or companies 12.5(n) Description of any of the following events In the last 5 years, there was no criminal conviction even if not final and unappealable, no sentencing in which have occurred during the last 5 years: (i) any administrative proceedings of CVM even if not final and unappealable and no final and unappealable criminal conviction; (ii) any sentencing in judgment at judicial or administrative level which has prevented or disaccredited him from exercising any administrative proceedings of CVM and the penalties professional or business activity. applied; and (iii) any final and unappealable judgment at judicial or administrative level which has prevented

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

or disaccredited from exercising any professional or business activity

FISCAL COUNCIL 12.5(a) Name Joaldir Reynaldo Machado 12.5(b) Date of Birth January 5, 1949 12.5(c) Occupation Economist 12.5(d) Individual Taxpayers Register - CPF 430.403.148-15 12.5(e) Elective Position filed (sitting) Fiscal Council Member 12.5(f) Estimated Date of election April 29, 2016 12.5(g) Estimated Date for investiture May 11, 2016 12.5(h) Term of Office April 2017 12.5(i) Other positions or functions exercised at the He does not exercise another position or function at the Issuer issuer 12.5(j) Proposed by the controlling company or not YES 12.5(k) Independent Member/ criteria used by the Not applicable issuer to determine independence 12.5(l) Number of consecutive terms of office 01

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.5(m) Information on (i) main professional Economist graduated from the Economics and Administration College of the University of São Paulo experiences during the last 5 years, designating: (1) (FEA-USP). He has exercised his activities in the public sector of SEADE Foundation (1979-1987), Chief name and activity sector of the company; (2) position; of Staff of the State Environmental Office (1987-1991), Financial Executive Officer – Executive Office of and (3) if the company integrates (i) the issuer’s Finance of Sabesp (1991-1992), Executive Office Advisor of EMPLASA (1992-1994), Assessment and economic group or (ii) is controlled by the issuer’s Planning Coordinator of the Economics and Planning Office (1998-2003), Chief of Staff of the Economics shareholder holding a direct or indirect equity interest and Planning Office (2003), Chief of Staff of the Economics and Planning Office (2007-2013), and equal to or above 5% of the same class or kind of currently, he is the Chief of Staff of the Sanitation and Hydric Resources Office. security of the issuer; and (ii) designation of all other management positions occupied in other third sector organizations or companies 12.5(n) Description of any of the following events In the last 5 years, there was no criminal conviction even if not final and unappealable, no sentencing in which have occurred during the last 5 years: (i) any administrative proceedings of CVM even if not final and unappealable and no final and unappealable criminal conviction; (ii) any sentencing in judgment at judicial or administrative level which has prevented or disaccredited him from exercising any administrative proceedings of CVM and the penalties professional or business activity. applied; and (iii) any final and unappealable judgment at judicial or administrative level which has prevented or disaccredited from exercising any professional or business activity

12.5(a) Name Humberto Macedo Puccinelli

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.5(b) Date of Birth July 23, 1957 12.5(c) Occupation Economist 12.5(d) Individual Taxpayers Register - CPF 022.759.188-76 12.5(e) Elective Position filed (sitting) Fiscal Council Member 12.5(f) Estimated Date of election April 29, 2016 12.5(g) Estimated Date for investiture May 11, 2016 12.5(h) Term of Office April 2017 12.5(i) Other positions or functions exercised at the He does not exercise another position or function at the Issuer issuer 12.5(j) Proposed by the controlling company or not YES 12.5(k) Independent Member/ criteria used by the Not applicable issuer to determine independence 12.5(l) Number of consecutive terms of office 05 terms of office 12.5(m) Information on (i) main professional Economist, graduated from the Pontifical Catholic University of São Paulo - PUC-SP. He has exercised experiences during the last 5 years, designating: (1) his activities in the public sector, at the Planning Office (1985-1995), State Health Office in the position of name and activity sector of the company; (2) position; Secretary’s Advisor (1995-1996), State Finance Office (1996-2002), Planning Office in the position of and (3) if the company integrates (i) the issuer’s Secretary’s Advisor (2003). Since January 2004 he has been a Technical Expert of the State Treasury. The economic group or (ii) is controlled by the issuer’s Fiscal Council Member has not filled the position of manager in publicly-held companies. shareholder holding a direct or indirect equity interest

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

equal to or above 5% of the same class or kind of security of the issuer; and (ii) designation of all other management positions occupied in other third sector organizations or companies 12.5(n) Description of any of the following events In the last 5 years, there was no criminal conviction even if not final and unappealable, no sentencing in which have occurred during the last 5 years: (i) any administrative proceedings of CVM even if not final and unappealable and no final and unappealable criminal conviction; (ii) any sentencing in judgment at judicial or administrative level which has prevented or disaccredited him from exercising any administrative proceedings of CVM and the penalties professional or business activity. applied; and (iii) any final and unappealable judgment at judicial or administrative level which has prevented or disaccredited from exercising any professional or business activity

12.5(a) Name José Alexandre Pereira de Araújo 12.5(b) Date of Birth January 31, 1972 12.5(c) Occupation Business Manager 12.5(d) Individual Taxpayers Register - CPF 102.435.868-25 12.5(e) Elective Position filed (sitting) Fiscal Council Member 12.5(f) Estimated Date of election April 29, 2016 12.5(g) Estimated Date for investiture May 11, 2016

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.5(h) Term of Office April 2017 12.5(i) Other positions or functions exercised at the He does not exercise another position or function at the Issuer issuer 12.5(j) Proposed by the controlling company or not YES 12.5(k) Independent Member/ criteria used by the Not applicable issuer to determine independence 12.5(l) Number of consecutive terms of office 01

12.5(m) Information on (i) main professional Manager, specialist in Business Management and Public Management, he was the Government Manager experiences during the last 5 years, designating: (1) of the State Superintendence of Banco do Brasil – São Paulo; Chief of Staff of the Municipal Management name and activity sector of the company; (2) position; Research and Study Center - Cepam; Chief of Staff of the Management Office of the City of São Paulo; and (3) if the company integrates (i) the issuer’s Executive Secretary of the Real Estate Properties Council of the Municipal Government of São Paulo; economic group or (ii) is controlled by the issuer’s Chief of Staff of the State Public Management Office of the Government of São Paulo; Director of shareholder holding a direct or indirect equity interest Poupatempo; Business Management Director of the Official Press of the State Government of São Paulo equal to or above 5% of the same class or kind of and currently he is the Assistant Secretary of the Management and Planning Office of the Government of security of the issuer; and (ii) designation of all other the State of São Paulo. management positions occupied in other third sector organizations or companies 12.5(n) Description of any of the following events In the last 5 years, there was no criminal conviction even if not final and unappealable, no sentencing in

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

which have occurred during the last 5 years: (i) any administrative proceedings of CVM even if not final and unappealable and no final and unappealable criminal conviction; (ii) any sentencing in judgment at judicial or administrative level which has prevented or disaccredited him from exercising any administrative proceedings of CVM and the penalties professional or business activity. applied; and (iii) any final and unappealable judgment at judicial or administrative level which has prevented or disaccredited from exercising any professional or business activity

12.5(a) Name Rui Brasil Assis 12.5(b) Date of Birth December 24, 1954 12.5(c) Occupation Engineer 12.5(d) Individual Taxpayers Register - CPF 923.245.258-87 12.5(e) Elective Position filed (sitting) Fiscal Council Member 12.5(f) Estimated Date of election April 29, 2016 12.5(g) Estimated Date for investiture May 11, 2016 12.5(h) Term of Office April 2017 12.5(i) Other positions or functions exercised at the He does not exercise another position or function at the Issuer issuer 12.5(j) Proposed by the controlling company or not YES 12.5(k) Independent Member/ criteria used by the Not applicable

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

issuer to determine independence 12.5(l) Number of consecutive terms of office 02 12.5(m) Information on (i) main professional Civil Engineer graduated from the Engineering School of Lins. He has exercised his activities in the public experiences during the last 5 years, designating: (1) sector at the Municipal Government of Lins (1980 to 1983), Electric Energy and Water Department (1983 name and activity sector of the company; (2) position; to 1987), Electric Energy and Water Department (1987 to 1999), Civil Works, Sanitation and Hydric and (3) if the company integrates (i) the issuer’s Resources Office (1999 to 2003), Sanitation, Hydric Resources and Energy Office (2003 to 2007), Energy economic group or (ii) is controlled by the issuer’s and Sanitation Office (2007 to 2010) and Sanitation and Hydric Resources Office (since 2011). He has shareholder holding a direct or indirect equity interest participated in the Fiscal Council of EMAE (2007 to 2011), the Board of Directors of Pro-Management equal to or above 5% of the same class or kind of Association of the Waters of the Water Basin of Paraíba do Sul River (AGEVAP) (2003 to 2006) and the security of the issuer; and (ii) designation of all other Board of Directors of the Environmental Sanitation Technology Company (CETESB) (1999 to 2007). management positions occupied in other third sector Deliberative Body of the Alto Tietê Water Basin Agency Foundation (2006 to 2014). organizations or companies 12.5(n) Description of any of the following events In the last 5 years, there was no criminal conviction even if not final and unappealable, no sentencing in which have occurred during the last 5 years: (i) any administrative proceedings of CVM even if not final and unappealable and no final and unappealable criminal conviction; (ii) any sentencing in judgment at judicial or administrative level which has prevented or disaccredited him from exercising any administrative proceedings of CVM and the penalties professional or business activity. applied; and (iii) any final and unappealable judgment at judicial or administrative level which has prevented or disaccredited from exercising any professional or

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

business activity

12.5(a) Name Tomas Bruginski de Paula 12.5(b) Date of Birth March 4, 1961 12.5(c) Occupation Economist 12.5(d) Individual Taxpayers Register - CPF 092.553.068-98 12.5(e) Elective Position filed (alternate) Fiscal Council Member 12.5(f) Estimated Date of election April 29, 2016 12.5(g) Estimated Date for investiture May 11, 2016 12.5(h) Term of Office April 2017 12.5(i) Other positions or functions exercised at the He does not exercise another position or function at the Issuer issuer 12.5(j) Proposed by the controlling company or not YES 12.5(k) Independent Member/ criteria used by the Not applicable issuer to determine independence 12.5(l) Number of consecutive terms of office 10 12.5(m) Information on (i) main professional Background: Economics – masters degree in Economics from the Economics Institute of Unicamp. experiences during the last 5 years, designating: (1) Professional Experience: Senior Technician (Economics area of the public sector), coordinator of name and activity sector of the company; (2) position; financing and public policy projects – Management Development Foundation (FUNDAP) (1985/2001); and (3) if the company integrates (i) the issuer’s Presidency’s Advisor, Project Coordinator of the infrastructure area – Applied Economic Research

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

economic group or (ii) is controlled by the issuer’s Foundation of the Federal District (IPEA-DF) (1995/1998); Executive Secretary’s Advisor – Ministry of shareholder holding a direct or indirect equity interest Science and Technology (2000/2002); Advisor (in different times) of Economic Committee for Latin equal to or above 5% of the same class or kind of America and the Caribbean (CEPAL), United Nations Development Program (PNUD), Brazilian security of the issuer; and (ii) designation of all other Municipal Management Institute (IBAM), Strategic Studies and Management Center (CGEE), Interactive management positions occupied in other third sector Distance Education Institute (IEDI), Brazilian School of Public and Business Management of the Getúlio organizations or companies Vargas Foundation (EBAPE-FGV), State Data Analysis System Foundation (SEADE), National Agency of Electric Energy (ANEEL) in the infrastructure and public policy financing areas; Professor of the Economics Department of PUC since 1986; sitting member of the Fiscal Council of CTEEP, of Nossa Caixa Mapfre Vida e Previdência and of CPETUR. Director of Companhia Paulista de Parcerias since 2004 and of Companhia Paulista de Securitização since 2009, both controlled by the State of São Paulo and connected to the Treasury Office. He is a sitting member of the fiscal council of Nossa Caixa Desenvolvimento and member of the Board of Directors of DERSA. 12.5(n) Description of any of the following events In the last 5 years, there was no criminal conviction even if not final and unappealable, no sentencing in which have occurred during the last 5 years: (i) any administrative proceedings of CVM even if not final and unappealable and no final and unappealable criminal conviction; (ii) any sentencing in judgment at judicial or administrative level which has prevented or disaccredited him from exercising any administrative proceedings of CVM and the penalties professional or business activity. applied; and (iii) any final and unappealable judgment at judicial or administrative level which has prevented or disaccredited from exercising any professional or

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

business activity

12.5(a) Name José Rubens Gozzo Pereira 12.5(b) Date of Birth September 16, 1947 12.5(c) Occupation Economist 12.5(d) Individual Taxpayers Register - CPF 309.106.178-72 12.5(e) Elective Position filed (alternate) Fiscal Council Member 12.5(f) Estimated Date of election April 29, 2016 12.5(g) Estimated Date for investiture May 11, 2016 12.5(h) Term of Office April 2017 12.5(i) Other positions or functions exercised at the He does not exercise another position or function at the Issuer issuer 12.5(j) Proposed by the controlling company or not YES 12.5(k) Independent Member/ criteria used by the Not applicable issuer to determine independence 12.5(l) Number of consecutive terms of office 06 12.5(m) Information on (i) main professional Economist under-graduated from Mackenzie University, graduated from Getúlio Vargas Foundation and experiences during the last 5 years, designating: (1) university extension made in the University of London and Paris. He has exercised his activities in the name and activity sector of the company; (2) position; Public Sector of Electric Energy and Water Department (DAEE) as the person in charge of the Budget and

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

and (3) if the company integrates (i) the issuer’s Financing Department; Director of Companhia de Engenharia de Tráfego (CET); in Companhia economic group or (ii) is controlled by the issuer’s Energética de São Paulo (CESP) acted in the area of International Cooperation. Since 1989, he is in charge shareholder holding a direct or indirect equity interest of the Fund Raising Area of the Treasury Office. The Fiscal Council Member has not filled the position of equal to or above 5% of the same class or kind of manager in publicly-held companies. security of the issuer; and (ii) designation of all other management positions occupied in other third sector organizations or companies 12.5(n) Description of any of the following events In the last 5 years, there was no criminal conviction even if not final and unappealable, no sentencing in which have occurred during the last 5 years: (i) any administrative proceedings of CVM even if not final and unappealable and no final and unappealable criminal conviction; (ii) any sentencing in judgment at judicial or administrative level which has prevented or disaccredited him from exercising any administrative proceedings of CVM and the penalties professional or business activity. applied; and (iii) any final and unappealable judgment at judicial or administrative level which has prevented or disaccredited from exercising any professional or business activity

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.5(a) Name Enio Marrano Lopes 12.5(b) Date of Birth April 16, 1962 12.5(c) Occupation Business Administrator 12.5(d) Individual Taxpayers Register - CPF 021.526.678-16 12.5(e) Elective Position filed (alternate) Fiscal Council Member 12.5(f) Estimated Date of election April 29, 2016 12.5(g) Estimated Date for investiture May 11, 2016 12.5(h) Term of Office April 2017 12.5(i) Other positions or functions exercised at the He does not exercise another position or function at the Issuer issuer 12.5(j) Proposed by the controlling company or not YES 12.5(k) Independent Member/ criteria used by the Not applicable issuer to determine independence 12.5(l) Number of consecutive terms of office 02 12.5(m) Information on (i) main professional Mr. Lopes is an alternate member of the fiscal council of Sabesp since April 2014. He graduated in experiences during the last 5 years, designating: (1) Business Administration from Oswaldo Cruz College. Currently, Mr. Lopes is also a member of the Fiscal name and activity sector of the company; (2) position; Council of the Urban and Housing Development Company (CDHU) and Assistant to the Budget and (3) if the company integrates (i) the issuer’s Coordinator of the Regional Development and Planning Office of the State of São Paulo. He also acted in

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

economic group or (ii) is controlled by the issuer’s several positions in the Economics and Planning Office of the State of São Paulo, in SEADE Foundation shareholder holding a direct or indirect equity interest and in PRODESP and was a member of the Fiscal Council of DERSA, CPTM and CESP. equal to or above 5% of the same class or kind of security of the issuer; and (ii) designation of all other management positions occupied in other third sector organizations or companies 12.5(n) Description of any of the following events In the last 5 years, there was no criminal conviction even if not final and unappealable, no sentencing in which have occurred during the last 5 years: (i) any administrative proceedings of CVM even if not final and unappealable and no final and unappealable criminal conviction; (ii) any sentencing in judgment at judicial or administrative level which has prevented or disaccredited him from exercising any administrative proceedings of CVM and the penalties professional or business activity. applied; and (iii) any final and unappealable judgment at judicial or administrative level which has prevented or disaccredited from exercising any professional or business activity

12.5(a) Name Sandra Maria Giannella 12.5(b) Date of Birth August 3, 1956 12.5(c) Occupation Business Administrator 12.5(d) Individual Taxpayers Register - CPF 901.639.078-20 12.5(e) Elective Position filed (alternate) Fiscal Council Member

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.5(f) Estimated Date of election April 29, 2016 12.5(g) Estimated Date for investiture May 11, 2016 12.5(h) Term of Office April 2017 12.5(i) Other positions or functions exercised at the He does not exercise another position or function at the Issuer issuer 12.5(j) Proposed by the controlling company or not YES 12.5(k) Independent Member/ criteria used by the Not applicable issuer to determine independence 12.5(l) Number of consecutive terms of office 01

12.5(m) Information on (i) main professional Graduated in Economics from Armando Álvares Penteado Foundation (Faap), in Business Administration experiences during the last 5 years, designating: (1) by Mackenzie University and specialized in Financial Administration by the Getúlio Vargas Foundation name and activity sector of the company; (2) position; (FGV). She has been a state public servant since 1978 and has filled several leadership positions during and (3) if the company integrates (i) the issuer’s her career. Currently, she coordinates the Business Management Advisory of the State of São Paulo and is economic group or (ii) is controlled by the issuer’s the Executive Secretary of the Management Committee of the State and City Government of the shareholder holding a direct or indirect equity interest Municipality of São Paulo (committee in charge of the management of the agreement for provision of equal to or above 5% of the same class or kind of sanitation services by Sabesp to the Municipality of São Paulo). Since 1991, Mrs. Giannella has been a security of the issuer; and (ii) designation of all other member of the fiscal council of several companies controlled by the Government of the State of São management positions occupied in other third sector Paulo, such as Sabesp, Companhia do Metropolitano de São Paulo (Metrô), Desenvolvimento Rodoviário organizations or companies S/A (Dersa), Companhia Energética de São Paulo (Cesp), Elektro and Companhia Paulista de Parcerias

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

PUBLICLY-HELD COMPANY Corporate Taxpayer's ID (CNPJ/MF): 43.776.517/0001-80 NIRE: 35.3000.1683-1

(CPP).

12.5(n) Description of any of the following events In the last 5 years, there was no criminal conviction even if not final and unappealable, no sentencing in which have occurred during the last 5 years: (i) any administrative proceedings of CVM even if not final and unappealable and no final and unappealable criminal conviction; (ii) any sentencing in judgment at judicial or administrative level which has prevented or disaccredited him from exercising any administrative proceedings of CVM and the penalties professional or business activity. applied; and (iii) any final and unappealable judgment at judicial or administrative level which has prevented or disaccredited from exercising any professional or business activity

12.6. Regarding each one of the persons acting as member of the Board of Directors or of the fiscal council in the last fiscal year, please inform, in the table format, the percentage of attendance in meetings held by the respective body within the same period which has occurred after investiture in the position

MEMBER OF THE BOARD OF TOTAL OF PERCENTAGE OF DIRECTORS MEETINGS HELD BY ATTENDANCE OF THE BOARD OF THE MEMBER IN THE MEETINGS DIRECTORS SINCE HELD AFTER THE THE INVESTITURE INVESTITURE OF THE DIRECTOR

Benedito Pinto Ferreira Braga Júnior 19 94.7 %

Mauro Guilherme Jardim Arce 02 100%

Jerson Kelman 17 100%

Alberto Goldman 20 95%

Walter Tesch 20 90%

Claudia Polto da Cunha 20 95%

Sidnei Franco da Rocha 20 95%

Francisco Vidal Luna 20 85%

Jerônimo Antunes 20 90%

Reinaldo Guerreiro 20 90%

Luís Eduardo Assis 20 95%

TOTAL OF PERCENTAGE OF MEMBER OF THE FISCAL MEETINGS HELD BY ATTENDANCE OF COUNCIL THE BOARD OF THE MEMBER IN

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1

DIRECTORS SINCE THE MEETINGS THE INVESTITURE HELD AFTER THE OF THE DIRECTOR INVESTITURE

17 Humberto Macedo Puccinelli 100% 17 Horácio José Ferragino 100% 17 Rui Brasil Assis 100% 11 Joaldir Reynaldo Machado 100% 11 Massao Fábio Oya 94,4% 0 Tomas Bruginski de Paula 0% 0 José Rubens Gozzo Pereira 0% 0 Enio Marrano Lopes 0% 0 Sandra Maria Gianella 0% 1 Maria Elvira Lopes 100%

12.7. Provide the information mentioned in item 12.5 regarding the members of the statutory committees, as well as of the audit, risk, financial and remuneration committees, even if such committees or structures are not statutory

12.7(a) Name Francisco Vidal Luna 12.7(b) Date of Birth July 11, 1946 12.7(c) Occupation Economist 12.7(d) Individual Taxpayers Register - CPF 031.950.828-53 12.7(e) Elective Position filed Member of the Audit Committee 12.7(f) Estimated Date of election April 29, 2016 12.7(g) Estimated Date for investiture May 12, 2016 12.7(h) Term of Office April 2018 12.7(i) Other positions or functions exercised at the Member of the Board of Directors issuer 12.7(j) Elected by the controlling company or not Yes 12.7(k) Independent Member/ criteria used by the Yes issuer to determine independence 12.7(l) Number of consecutive terms of office 02

12.7(a) Name Jerônimo Antunes 12.7(b) Date of Birth November 18, 1955 12.7(c) Occupation Accountant and Business Administrator 12.7(d) Individual Taxpayers Register - CPF 901.269.398-53

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.7(e) Elective Position filed Coordinator of the Audit Committee 12.7(f) Estimated Date of election April 29, 2016 12.7(g) Estimated Date for investiture May 12, 2016 12.7(h) Term of Office April 2018 12.7(i) Other positions or functions exercised at the Member of the Board of Directors issuer 12.7(j) Elected by the controlling company or not Yes 12.7(k) Independent Member/ criteria used by the Yes issuer to determine independence 12.7(l) Number of consecutive terms of office 04

12.7(a) Name Reinaldo Guerreiro 12.7(b) Date of Birth February 10, 1953 12.7(c) Occupation Economist 12.7(d) Individual Taxpayers Register - CPF 503.946.658-72 12.7(e) Elective Position filed Member of the Audit Committee 12.7(f) Estimated Date of election April 29, 2016 12.7(g) Estimated Date for investiture May 12, 2016 12.7(h) Term of Office April 2018 12.7(i) Other positions or functions exercised at the Member of the Board of Directors

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1 issuer 12.7(j) Elected by the controlling company or not Yes 12.7(k) Independent Member/ criteria used by the Yes issuer to determine independence 12.7(l) Number of consecutive terms of office 06

12.7(a) Name João Paulo Nocetti Tonello 12.7(b) Date of Birth October 20, 1977 12.7(c) Occupation Engineer 12.7(d) Individual Taxpayers Register - CPF 272.008.398-41 12.7(e) Elective Position filed Member of the Corporate Risk Management Committee 12.7(f) Date of Election June 10, 2015 12.7(g) Date of Investiture June 10, 2015 12.7(h) Term of Office 2 years renewable for an equal period 12.7(i) Other positions or functions exercised at the Department Manager issuer 12.7(j) Elected by the controlling company or not No 12.7(k) Independent Member/ criteria used by the No issuer to determine independence

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.7(l) Number of consecutive terms of office 01

12.7(a) Name Irineu Shiguekazu Yamashiro 12.7(b) Date of Birth April 14, 1955 12.7(c) Occupation Engineer 12.7(d) Individual Taxpayers Register - CPF 003.206.488-85 12.7(e) Elective Position filed Member of the Corporate Risk Management Committee 12.7(f) Date of Election September 2, 2015 12.7(g) Date of Investiture September 2, 2015 12.7(h) Term of Office 2 years renewable for an equal period 12.7(i) Other positions or functions exercised at the Executive Board’s Advisor issuer 12.7(j) Elected by the controlling company or not No 12.7(k) Independent Member/ criteria used by the No issuer to determine independence 12.7(l) Number of consecutive terms of office 01

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.7(a) Name Celina Yumiko Ozawa 12.7(b) Date of Birth June 9, 1976 12.7(c) Occupation Economist 12.7(d) Individual Taxpayers Register - CPF 177.080.688-19 12.7(e) Elective Position filed Member of the Corporate Risk Management Committee 12.7(f) Date of Election October 14, 2015 12.7(g) Date of Investiture October 14, 2015 12.7(h) Term of Office 2 years renewable for an equal period 12.7(i) Other positions or functions exercised at the Executive Board’s Advisor issuer 12.7(j) Elected by the controlling company or not No 12.7(k) Independent Member/ criteria used by the No issuer to determine independence 12.7(l) Number of consecutive terms of office 01

12.7(a) Name Marcio Gonçalves de Oliveira 12.7(b) Date of Birth July 15, 1963 12.7(c) Occupation Civil Engineer 12.7(d) Individual Taxpayers Register - CPF 014.545.728-17

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.7(e) Elective Position filed Member of the Corporate Risk Management Committee 12.7(f) Date of Election August 6, 2014 12.7(g) Date of Investiture June 6, 2014 12.7(h) Term of Office 2 years renewable for an equal period 12.7(i) Other positions or functions exercised at the Superintendent issuer 12.7(j) Elected by the controlling company or not No 12.7(k) Independent Member/ criteria used by the No issuer to determine independence 12.7(l) Number of consecutive terms of office 02

12.7(a) Name Michael Breslin 12.7(b) Date of Birth October 20, 1973 12.7(c) Occupation Data Processing 12.7(d) Individual Taxpayers Register - CPF 249.839.528-88 12.7(e) Elective Position filed Member of the Corporate Risk Management Committee 12.7(f) Date of Election August 6, 2014 12.7(g) Date of Investiture August 6, 2014 12.7(h) Term of Office 2 years renewable for an equal period

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.7(i) Other positions or functions exercised at the Executive Board’s Advisor issuer 12.7(j) Elected by the controlling company or not No 12.7(k) Independent Member/ criteria used by the No issuer to determine independence 12.7(l) Number of consecutive terms of office 02

12.7(a) Name Silvio Valdrighi 12.7(b) Date of Birth October 23, 1952 12.7(c) Occupation Economist 12.7(d) Individual Taxpayers Register - CPF 521.507.638-34 12.7(e) Elective Position filed Coordinator of the Corporate Risk Management Committee 12.7(f) Date of Election August 6, 2014 12.7(g) Date of Investiture August 6, 2014 12.7(h) Term of Office 2 years renewable for an equal period 12.7(i) Other positions or functions exercised at the Superintendent issuer 12.7(j) Elected by the controlling company or not No

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.7(k) Independent Member/ criteria used by the No issuer to determine independence 12.7(l) Number of consecutive terms of office 02

12.7(a) Name Wady Roberto Bom 12.7(b) Date of Birth July 20, 1956 12.7(c) Occupation Civil Engineer 12.7(d) Individual Taxpayers Register - CPF 010.114.758-98 12.7(e) Elective Position filed Member of the Corporate Risk Management Committee 12.7(f) Date of Election August 6, 2014 12.7(g) Date of Investiture August 6, 2014 12.7(h) Term of Office 2 years renewable for an equal period 12.7(i) Other positions or functions exercised at the Executive Board’s Advisor issuer 12.7(j) Elected by the controlling company or not No 12.7(k) Independent Member/ criteria used by the No issuer to determine independence 12.7(l) Number of consecutive terms of office 02

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.7(a) Name Jerson Kelman 12.7(b) Date of Birth January 17, 1948 12.7(c) Occupation Economist 12.7(d) Individual Taxpayers Register - CPF 155.082.937-87 12.7(e) Elective Position filed Regulatory Affairs Committee 12.7(f) Date of Election January 9, 2015 12.7(g) Date of Investiture January 9, 2015 12.7(h) Term of Office Indefinite 12.7(i) Other positions or functions exercised at the Member of the Board of Directors and Chief Executive Officer issuer 12.7(j) Elected by the controlling company or not No 12.7(k) Independent Member/ criteria used by the No issuer to determine independence 12.7(l) Number of consecutive terms of office 01

12.7(a) Name Luiz Paulo de Almeida Neto 12.7(b) Date of Birth May 17, 1956 12.7(c) Occupation Engineer

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.7(d) Individual Taxpayers Register - CPF 018.762.858-00 12.7(e) Elective Position filed Regulatory Affairs Committee 12.7(f) Date of Election June 2, 2011 12.7(g) Date of Investiture June 2, 2011 12.7(h) Term of Office Indefinite 12.7(i) Other positions or functions exercised at the Regional Systems Director issuer 12.7(j) Elected by the controlling company or not No 12.7(k) Independent Member/ criteria used by the No issuer to determine independence 12.7(l) Number of consecutive terms of office 03

12.7(a) Name Paulo Massato Yoshimoto 12.7(b) Date of Birth October 9, 1952 12.7(c) Occupation Civil Engineer 12.7(d) Individual Taxpayers Register - CPF 898.271.128-72 12.7(e) Elective Position filed Regulatory Affairs Committee 12.7(f) Date of Election June 2, 2011

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.7(g) Date of Investiture June 2, 2011 12.7(h) Term of Office Indefinite 12.7(i) Other positions or functions exercised at the Metropolitan Director issuer 12.7(j) Elected by the controlling company or not No 12.7(k) Independent Member/ criteria used by the No issuer to determine independence 12.7(l) Number of consecutive terms of office 03

12.7(a) Name Rui de Britto Álvares Affonso 12.7(b) Date of Birth September 18, 1957 12.7(c) Occupation Economist 12.7(d) Individual Taxpayers Register - CPF 013.982.348-42 12.7(e) Elective Position filed Regulatory Affairs Committee 12.7(f) Date of Election June 2, 2011 12.7(g) Date of Investiture June 2, 2011 12.7(h) Term of Office Indefinite 12.7(i) Other positions or functions exercised at the Financial-Economic and Investors Relations Officer issuer

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.7(j) Elected by the controlling company or not No 12.7(k) Independent Member/ criteria used by the No issuer to determine independence 12.7(l) Number of consecutive terms of office 03

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1

12.8. Regarding each one of the persons which acted as member of the statutory committees, as well as of the audit, risk, financial and remuneration committees, even if such committees or structures are not statutory, please inform, in the table format, the percentage of attendance in meetings held by the respective body within the same period which has occurred after investiture in the position.

TOTAL OF % OF MEETINGS ATTENDANCE OF HELD BY THE THE MEMBER IN RESPECTIVE AUDIT COMMITTEE THE MEETINGS BODY SINCE HELD AFTER THE THE INVESTITURE INVESTITURE

OF THE MEMBER Jerônimo Antunes 24 100%

Francisco Vidal Luna 24 91.7%

Reinaldo Guerreiro 24 95.8%

TOTAL OF % OF MEETINGS ATTENDANCE OF HELD BY THE THE MEMBER IN CORPORATE RISK RESPECTIVE THE MEETINGS MANAGEMENT COMMITTEE BODY SINCE HELD AFTER THE THE INVESTITURE INVESTITURE

OF THE MEMBER Celina Yumiko Ozawa 4 100% Fernando Lourenço de Oliveira 4 100% Irineu Shighekazu Yamashiro 6 100% João Paulo Nocetti Tonello 7 85.71% José Geraldo Portugal Junior 6 66.66% Marcio Gonçalves de Oliveira 10 60% Michael Breslin 10 80% Silvio Valdrighi 10 100%

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1

Wady Roberto Bom 10 100%

Regulatory Affairs Committee

In the fiscal year of 2015, no meetings of the Regulatory Affairs Committee were held in view of focusing the efforts of the Executive Board and the other employees of the Company for mitigation of the effects of the hydric crisis which affected the State of São Paulo.

12.9. Please inform the existence of marriage, cohabitation or kinship up to the second degree between:

a. managers of the issuer b. (i) managers of the issuer and (ii) managers of direct or indirect controlled companies of the issuer

c. (i) managers of the issuer or of its direct or indirect controlled companies and (ii) direct or indirect controlling companies of the issuer d. (i) managers of the issuer and (ii) managers of direct or indirect controlling companies of the issuer

There are no marriages, cohabitations or kinship up to the 2nd degree between: a) managers of the Company; b) managers of the Company and managers of direct or indirect controlled companies of the Company; c) managers of the Company or of its direct or indirect controlled companies and direct or indirect controlling companies of the Company; and d) managers of the Company and managers of the direct or indirect controlling companies of the Company.

12.10. Please inform on subordinate relationships, provision of services or control maintained in the last 3 fiscal years between managers of the issuer and:

a. company controlled, whether directly or indirectly, by the issuer, except for those in which the issuer directly or indirectly holds the totality of the share capital b. direct or indirect controlling company of the issuer

COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO – SABESP

COMPANHIA ABERTA CNPJ N.º 43.776.517/0001-80 NIRE: 35.3000.1683-1

c. if relevant, supplier, client, debtor or creditor of the issuer, of its controlled company or controlling companies or controlled companies of any of such persons

There are no subordinate relationships, provision of services or control maintained in the last 3 fiscal years between managers of the Company and: a) company controlled, whether directly or indirectly, by the Company; b) direct or indirect controlling company of the Company; and c) supplier, client, debtor or creditor of the Company, of its controlled company or controlling companies or controlled companies of any of such persons.