Banrisul

Investor Relations

NOTICE TO THE MARKET

SHARE CONVERSION

Banco do Estado do Rio Grande do Sul S.A. (Banrisul), considering the option to convert its class A preferred (PNA) shares into common (ON) shares or class B preferred (PNB) shares issued by the Company, hereby notifies, for knowledge and disclosure, that, after conversion of 400 (four hundred) class A preferred shares into class B preferred shares, the Company’s capital stock was altered, as shown below:

Capital Stock on the date of last modification, 04/23/2010

Common Shares: Class A Preferred Shares: Class B Preferred Shares: Total

205,043,374 3,731,835 200,199,268 408,974,477

Capital Stock after Conversions on 04/27/2010

Common Shares: Class A Preferred Shares: Class B Preferred Shares: Total

205,043,374 3,731,435 200,199,668 408,974,477

Mateus Affonso Bandeira
CEO and Investor Relations Officer
Banco do Estado do Rio Grande do Sul S.A. − Banrisul

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