SBSP3 Companhia de Saneamento Basico do Estado de Sao Paulo.

SAO PAULO, July 16, 2013 /PRNewswire/ -- Companhia de Saneamento Basico do Estado de Sao Paulo - SABESP (BM&FBovespa: SBSP3; NYSE: SBS), one of the largest water and sewage service provider in the world based on the number of customers, hereby announces that on July 15, 2013, Moody's America Latina Ltda (Moody's) assigned a Baa3 issuer rating on the global scale (Investment Grade) and Aa1.br issuer rating on the Brazilian national scale to the Company. This is the first time Moody's has assigned a rating to SABESP. The outlook is stable for all ratings.

The full report is available at Sabesp's Investor Relations website (www.sabesp.com.br/investors)

IR Contacts:

Mario Arruda Sampaio: (55 11) 3388-8664 (maasampaio@sabesp.com.br)
Angela Beatriz Airoldi: (55 11) 3388-8793 (abairoldi@sabesp.com.br)

SOURCE SABESP