NOTICE TO THE MARKET New Chief Financial Officer and IR Officer São Paulo, November 1, 2011 - Trisul S.A. (BM&FBovespa: TRIS3; Bloomberg: TRIS3 BZ; Reuters: TRIS3.SA), one of the largest real estate developers and builders in the São Paulo metropolitan area, announces to its shareholders, investors and the market in general that the resignations submitted by Messrs. Marco Antônio Cattini Mattar as Investor Relations Officer and Lincoln Carvalho de Castro as Chief Financial Officer were accepted at the Board of Directors' Meeting held on October 31, 2011.

The Management sincerely thanks Messrs. Marco and Lincoln for their valuable performance that contributed to the Company's growth.
In view of resignations submitted by Messrs. Marco and Lincoln, the Company's Board of Directors in a meeting held on October 31, 2011, resolved that these positions would be cumulated by Mr. Fernando Salomão who assumes the positions as Chief Financial Officer and Investor Relations Officer, in addition to his position as Administrative Officer.
Mr. Fernando Salomão was born on October 29, 1957. He holds a bachelor's degree in production engineering (1980) from Polytechnic School of the University of São Paulo and a post-graduate diploma in Business Administration (1982) from CEAG/Getúlio Vargas Foundation. Mr. Salomão gained experience in leasing special operations, when he was in charge of treasury and cash flow management at Incosul, since
1995. Occupied the post of Trisul´s Administrative Officer from April 30, 2007.

Investor Relations Fernando Salomão CFO and IR Officer

Phone: (55 11) 3147-0428
E-mail: ri@trisul-sa.com.br
Website: www.trisul-sa.com.br/ri

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 s ector, 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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