Material Fact - Odebrecht Negotiations with LyondellBasell

Corporate Taxpayer ID (CNPJ): 42.150.391/0001-70
Company Registry (NIRE): 29.300.006.939
Public Held Company

Braskem S.A. ("Braskem" or the "Company"), in compliance with the provisions of CVM Instruction 358/02, informs its shareholders and the market that it was communicated by Odebrecht S.A., its controlling shareholder, about the beginning of discussions with LyondellBasell, a listed company headquartered in Rotterdam, for a potential transaction involving the transfer to LyondellBasell of the totality of Odebrecht S.A.'s interest in Braskem ("Transaction").
In accordance with Odebrecht S.A. the negotiations are in a preliminary stage, under confidentiality, and LyondellBasell was given exclusivity.
It was also informed that the conclusion of the Transaction is subject to, among other conditions, due diligence, negotiation of definitive agreements and all necessary approvals. As of this date, there is no binding obligation between LyondellBasell and Odebrecht S.A. nor assurance that such negotiations will result in a Transaction.
Finally, it was reinforced that in case the Transaction is concluded, the same conditions agreed with Odebrecht S.A. will be guaranteed to all other Braskem shareholders.
Braskem will keep the market and its shareholders informed of any other relevant information it has access to about the Transaction.