For the 13th consecutive year, Braskem is included in B3's Sustainability Index

São Paulo, November 23, 2017 - Braskem (B3: BRKM5, BRKM3, BRKM6; NYSE: BAK; LATIBEX: XBRK), the largest producer of thermoplastic resins in the Americas and the global leader in the production of biopolymers, was included in the Corporate Sustainability Index (ISE) of the B3 for the thirteenth time.

Braskem's continuity in the index reflects its commitment to good corporate governance practices, social responsibility, financial management and environmental preservation. Among these practices, the highlights are those relating to health, safety and environmental issues, corporate values which are fully integrated into the Company's management.

The new ISE portfolio comprises 33 shares of 30 companies representing 12 industries, with a joint market cap of R$1.3 trillion, equivalent to 41% of the total market cap of all companies traded on the Brazilian exchange. The index composition will be in effect from January 08, 2018, to January 04, 2019.

More information can be obtained from Braskem's Investor Relations Department by telephone +55 (11) 3576-9531 or by e-mail .