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

Yes ______ No ___X___

 

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COMPANHIA DE SANEAMENTO BÁSICO DO ESTADO DE SÃO PAULO - SABESP

PUBLICLY-HELD COMPANY
Corporate Taxpayer’s ID (CNPJ) 43.776.517/0001 -80

NOTICE TO SHAREHOLDERS

We hereby inform the Company’s Shareholders that the payment of Dividends in the form of Interest on Own Capital, referring to the year 2005, will be settled on June 26, 2006. Such payment was approved by the Board of Directors in meetings held on April 28, June 23, October 20 and December 15, 2005.

1. Dividends in the form of Interest on Own Capital – Declared in 1^st, 2^nd, 3^rd and 4^th quarters of 2005, will be paid at the ratio of R$1.34131202 (one real three, four, one, three, one, two, zero, two) per thousand shares held on the reference date as of 05/09/2005, R$2.3455404 (two reais three, four, five, five, four, zero, four) per thousand shares held on the reference date as of 07/06/2005, R$2.99 (two reais ninety nine centavos) per thousand shares held on the reference date as of 11/03/2005 and R$5.55 (five reais fifty five centavos) per thousand shares held on the reference date as of 12/28/2005, respectively.

2. Instructions for credit:

2.1. Shareholders will have their credits available to their banking instructions provided to Banco Itaú S/A.

2.2. Shareholders whose Registry Information are not updated – Shareholders whose registry information does not include either their Individual/Corporate Taxpayer’s Identification Number (CPF/CNPJ) or complete banking instructions (bank, branch and account number) will have their interest credited as of the third business day counted from the processing date made in the electronic files of Banco Itaú S/A.

2.3. Those shareholders whose shares are under fiduciary custody will have their Dividends in the form of Interest on Own Capital credited in accordance with the procedures adopted by Stock Exchanges.

3. Assistance to Shareholders:
Shareholders may be assisted at any Banco Itaú S/A’s branch, as well as at any branch allowed to assist shareholders, during bank working hours.

São Paulo, June 12, 2006.
Rui de Britto Álvares Affonso
Chief Financial Officer and Investor Relations Officer

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

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