(Commission File No. 1-14862 )

COMMERCIAL PROPOSAL

Work Proposal:

Bradesco BBI S.A., a financial institution enrolled in the National Register of Legal Entities (CNPJ/MF) under No. 06.271.464/0073-93, established at Av. Paulista, No. 1450, 8º andar, City and State of São Paulo, hereby presents a work proposal for the elaboration of an economic and financial appraisal report (“Appraisal Report”) of Braskem S/A (“Braskem”) and Quattor Participações S.A. (“Quattor”) to be used in potential mergers, by Braskem, of the shares of

(i) Quattor;

(ii) Quattor Petroquímica S.A. (“Quattor Petroquímica”) and

(iii) Rio Polímeros S.A. (“RioPol” and, jointly with Braskem, Quattor and Quattor Petroquímica, the “Companies”)

All in conformity with the provisions in Law No. 6404 of December 15, 1976, as amended (“Corporation Law”) and other applicable regulations.

The base date of the equity information to be used for the appraisals encompassed by the Appraisal Report to be prepared is September 30, 2009.

To prepare the Appraisal Report, the following information will be used (collectively, the “Information”):

(i) operational forecasts of the Companies supplied by Braskem’s administration;

(ii) analysis of relevant public information, including studies about the sector, researches, financial, economic and market analysis and criteria;

(iii) analysis of the consolidated financial statements: (a) of Braskem, including iQ Soluções & Química S.A. (“Quantiq”), former Ipiranga Química S.A., audited by KGPM Auditores Independentes (“KGPM”) for years ended on December 31, 2006, 2007 and 2008 and on September 30, 2009; (b) of Quattor, audited by PricewaterhouseCoopers Auditores Independentes (“PWC”) for years ended on December 31, 2006, 2007 and 2008 and unaudited for the year ended on September 30, 2009; (c) of QuantiQ, audited by PricewaterhouseCoopers Auditores Independentes for the years ended on December 31, 2006, 2007 and 2008 and unaudited for the year ended on September 30, 2009 (c) of Quattor Química S.A. (“Quattor Química”), of RioPol and Polibutenos S.A. Indústrias Químicas (“PIB”), audited by PWC for the years ended on December 31, 2006, 2007 and 2008 and unaudited for the year ended on September 30, 2009 and (d) of Quattor Petroquímica (jointly with Quattor Química and RioPol hereinafter designated the “Companies Controlled by Quattor”) audited by PWC for the years ended on December 31, 2006, 2007 and 2008 and on September 30, 2009;

(iv) analysis of the information supplied by Braskem’s administration, including a report made by Chemical Market Associates, Inc. (“CMAI”) with the price forecasts of the main products and raw materials traded by the Companies; and

(v) ascertainment of the soundness of the information and discussion with Braskem’s officers about the Companies’ business perspectives.

The preparation of the Appraisal Report will not include the independent ascertainment of the data and information and we will trust that they are true, complete and accurate in all their material aspects.

The Appraisal Report will be prepared in Portuguese and English.

Fees:

Bradesco BBI proposes the amount of R$2,200,000.00 for the preparation of the Appraisal Report, under the abovementioned terms.

[signature]                                                      [signature]

Fernando Buso                                              Marcelo F. Nascimento

                                                                       Superintendent

SIGNATURES

        Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.