Braskem SA (BAK)

Financial Presentation and Accounting Policies

Presentation of Financial Statements

We have prepared our consolidated and combined financial statements at December 31, 2004 and 2003 and for the three years ended December 31, 2004 in accordance with Brazilian GAAP, which differs in significant respects from U.S. GAAP. See note 29 to our audited consolidated and combined financial statements included elsewhere in this annual report for an explanation of these differences. The financial information contained in this annual report is in accordance with Brazilian GAAP, except as otherwise noted.

Since July 25, 2001, our company has grown substantially through acquisitions and mergers, principally the acquisition of Nova Camaçari Participações S.A., or Nova Camaçari, and our mergers with OPP Produtos and 52114 Participações. See “Item 4. Information on Our Company—History and Development of Our Company.” Prior to our mergers with OPP Produtos and 52114 Participações, Odebrecht, a member of the Odebrecht Group, owned all of the voting share capital of OPP Produtos, and Pronor, a member of the Mariani Group, owned all of the voting share capital of 52114 Participações.

We accounted for our merger with 52114 Participações at the date of the merger. However, as a result of the common control exercised by the Odebrecht Group over our company and OPP Produtos prior to the merger of OPP Produtos, we accounted for the merger of OPP Produtos as if this acquisition had occurred on July 25, 2001, the date we acquired Nova Camaçari and the date on which such common control commenced. As a result our consolidated statement of operations and cash flow accounts for the year ended December 31, 2002 reflect the operations and cash flows of Nova Camaçari and OPP Produtos and their subsidiaries for that year and the operations and cash flows of 52114 Participações and its subsidiaries for the period beginning on August 16, 2002.

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Our consolidated and combined financial statements have been prepared in accordance with Brazilian Securities Commission Instruction No. 247/96, as amended by Brazilian Securities Commission Instruction Nos. 269/97, 285/98 and 319/99, which we refer to collectively as Instruction 247. Instruction 247 requires our company to proportionally consolidate jointly controlled companies that are not our subsidiaries, principally Copesul and Politeno.

Our results of operations for 2002 and 2003 are not fully comparable because our results of operations for 2002 include the results of Nitrocarbono only for the period after August 16, 2002, and our results of operations for 2003 include the results of Nitrocarbono for the full year. However, because of the size of our Business Development Unit relative to our company, we do not believe that this lack of full comparability is material.