Documents and Announcements

Material Fact - Brasildental

Pursuant to § 4 of Article 157 of Law 6,404, dated December 15th, 1976, to CVM (Brazilian Securities and Exchange Commission) Regulation 358, dated January 3rd, 2002 and in addition to Information to the Market and to Material Fact released by Banco do Brasil S.A. (“Banco do Brasil”) on August 19th, 2010 and on November 26th, 2012, Banco do Brasil and BB Seguridade Participações S.A. (“BB Seguridade”) hereby inform that:

Banco do Brasil, BB Seguros Participações SA ("BB Seguros"), BB Corretora de Seguros e Administradora de Bens S.A. (“BB Corretora”), Odontoprev S.A. ("Odontoprev") and Odontoprev Serviços Ltda. ("Odontoprev Serviços") signed today an Agreement (Acordo de Associação e Outras Avenças) aiming to develop and disseminate, by a new limited company named Brasildental Operadora de Planos Odontológicos S.A. ("Brasildental"), and to distribute and sell, by BB Corretora, dental plans under the brand BB Dental, exclusively through BB channels in the Brazilian territory.

2. Brasildental will have R$ 5 million as initial capital, distributed in 100,000 common shares ("ON") and 100,000 preferred shares ("PN") with the following shareholding structure: (i) BB Seguros will hold 49.99% of common shares and 100% of preferred shares, representing 74.99% of total capital, and (ii) Odontoprev will hold 50.01% of the common shares, representing 25.01% of total capital. BB Seguros and Odontoprev will respond for Brasildental’s initial capital constitution accordingly to their respective ownership stake.

3. The Agreement will be subject to the analysis and approval by regulators, supervisors and auditors, in accordance to applicable law and it will remain effective for 20 years, renewable for equal periods.

4. Additional facts, deemed relevant, will be timely disclosed to the market.

Brasília (DF), June 11th, 2013.

Banco do Brasil S.A.        BB Seguridade Participações S.A.

Ivan de Souza Monteiro        Leonardo Giuberti Mattedi
CFO                                       CFO