Material Fact

São Paulo, August 29th, 2011 - TRISUL S.A. (BM&FBovespa: TRIS3; Bloomberg: TRIS3 BZ; Reuters: TRIS3.SA), pursuant to CVM Rule 358/02, hereby informs its shareholders, investors and the market in general that financial information for the second quarter of 2011 is still undergoing examination andrevision by the Co mp an y’s ind ep end ent aud it o rs . Quarterly Information – ITR, corresponding Financial Statements for the second quarter of 2011 and the respective independent auditor’s report will be disclosed in the coming weeks, as soon as the independent auditors complete the construction budget revision process, according to the material fact released on August 15, 2011.

For further information, please contact: Investor Relations

Phone: (55 11) 3147-0134 e-mail: ri@trisul-sa.com.br website: www.trisul-sa.com.br/ir

ABOUT TRISUL

Trisul S.A. is one of the largest real estate developers and builders in the São Paulo metropolitan area focusing on residential projects. Throughout its history, the Company has launched more than 29,000 units, distributed over 195 projects. According to the Top Real Estate held in June 2010, Trisul established itself as the 6th largest construction company and the 8th largest developer in the São Paulo metropolitan area in 2009 (source: Embraesp).

All statements herein related to business prospects, future estimates of operating and financial results, and Trisul’s growth prospects are merely estimates and, as such, are based solely on the expectations of the executive board regarding the company’s business future. These expectations largely depend on changes in market conditions and the performance of the Brazilian economy, the sector, and the international market and are, therefore, subject to changes without prior notice. This performance report includes accounting data and non-accounting data such as operating and financial results and projections based on the expectations of Board of Directors. The non- accounting data was not reviewed by the Company’s independent auditors.

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