NOTICE TO THE MARKET

São Paulo, May 26, 2017- BRASKEM S.A. ('Braskem' or 'Company') (BM&FBOVESPA: BRKM3, BRKM5 and BRKM6; NYSE: BAK; LATIBEX: XBRK) informs its shareholders and the market that it has refiled its Annual Calendar to reflect the change in the date for filing its Reference Form for fiscal year 2016.

Although it continues to make progress on conducting the required assessments of its processes and internal controls, as mentioned in the Material Fact notices dated February 21, 2017 and March 28, 2017, the depth and detail of the assessments have extended the work schedule of the independent auditors and consequently the Company has not yet completed its audited financial statements for fiscal year 2016, which has prevented it from filing the Reference Form.

Braskem will continue to make its best efforts to conclude the aforementioned work as soon as possible and reinforces that it does not anticipate significant changes in relation to the unrevised results for fiscal year 2016.

For more information, contact Braskem's Investor Relations Department by calling +55 (11) 3576-9531 or sending an e-mail to braskem-ri@braskem.com.br .

Braskem SA published this content on 26 May 2017 and is solely responsible for the information contained herein.
Distributed by Public, unedited and unaltered, on 26 May 2017 23:11:22 UTC.

Original documenthttp://www.braskem-ri.com.br/detail-notices-and-material-facts/change-in-calendar-of-events-reference-form

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