The Assets Purchase Proposal Involving the Transfer of Water and Sewage Services of the...

Energy Editors/Business Editors

SAO PAULO, Brazil--(BUSINESS WIRE)--Dec. 19, 2003

Sabesp - Cia. de Saneamento Basico do Estado de Sao Paulo - (BOVESPA:SBSP3) (NYSE:SBS), the largest water and sewage utility company in the Americas and the third largest in the world (in terms

of number of customers), announces that its Board of Directors, in a meeting held on Dec. 09, 2003, approved the assets purchase proposal involving the transfer of water and sewage services of the Municipality of Sao Bernardo do Campo to Sabesp, for the amount estimated in the Economic-Financial Valuation Report, including the liquidation of the water wholesale supply accumulated debt.

Transaction terms were the following:

I - All assets and services related to water and sewage services of the Municipality of Sao Bernardo do Campo are being transferred to Sabesp.

II - The transaction value, estimated in the Economic-Financial Valuation Report, dated as of Dec. 8, 2003, prepared by the specialists appointed in the Company's Extraordinary Shareholders' Meeting held on Oct. 28, 2003, is R$ 415,470,932.00.

III - For the purpose of the current transaction, the value of the water wholesale supply debt was estimated based on the debt principal amount, monetarily adjusted up to Nov. 30, 2003, added to projected amounts to be received and billed up to Dec. 31, 2003, totaling R$ 265,431,939.41.

IV - The difference between the amount estimated in the Economic-Financial Valuation Report and the total debt amount, of R$ 150,038,992.59 will be paid in cash to the Municipality of Sao Bernardo do Campo as follows:

-- 33% (thirty-three per cent) of the total up to 12/30/2003;

-- 16% (sixteen per cent) of the total up to 01/30/2004;

-- 10% (ten per cent) of the total up to 02/28/2004;

-- 32.5% (thirty-two point five per cent) of the total divided in

5 (five) equal and successive installments, being 03/30/2004

the due date for the first installment; and

-- 8.5% (eight point five per cent) of the total divided into 4

(four) equal and successive installments, being 08/30/2004 the

due date for the first installment.

Sabesp will start operating sewage and water services of the Municipality of Sao Bernardo do Campo on Jan. 5, 2004.

For additional information, please contact Helmut Bossert (tel.: 5511 3388-8664 and e-mail: hbossert@sabesp.com.br) or Marisa Guimaraes (tel.: 5511 3388-9135 and e-mail: marisag@sabesp.com.br) at Sabesp Investor Relations.

www.sabesp.com.br