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Commission file number : 001-14862 N / A As filed with the Securities and Exchange Commission on May 13 , 2021 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 20 - F ㅁ ☐ ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12 ( b ) OR 12 ( g ) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) ☑ OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31 , 2020 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 ( Translation of Registrant's Name into English ) BRASKEM S.A. ( Exact Name of Registrant as Specified in its Charter ) The Federative Republic of Brazil ( Jurisdiction of Incorporation or Organization ) Title of Each Class Rua Lemos Monteiro , 120-24º andar Butantã - São Paulo , SP - CEP 05501-050 - Brazil ( Address of Principal Executive Offices ) Pedro van Langendonck Teixeira de Freitas Braskem S.A. Rua Lemos Monteiro , 120-24 ° andar Butantã - São Paulo , SP - CEP 05501-050 - Brazil Telephone : +55 11 3576-9000 Fax : +55 11 3576-9532 ( Name , Telephone , E - mail and / or Facsimile number and Address of Company Contact Person ) Securities registered or to be registered pursuant to Section 12 ( b ) of the Act : Preferred Shares , Class A , without par value per share , each represented by American Depositary Shares Trading Symbol BAK Name of Each Exchange on which Registered New York Stock Exchange Securities registered or to be registered pursuant to Section 12 ( g ) of the Act : None Securities for which there is a reporting obligation pursuant to Section 15 ( d ) of the Act : 6.450 % Notes due 2024 , issued by Braskem Finance Limited The total number of issued shares of each class of stock of Braskem S.A. as of December 31 , 2020 was : 451,668,652 Common Shares , without par value 345,049,672 Preferred Shares , Class A , without par value 500,230 Preferred Shares , Class B , without par value Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes No If this report is an annual or transition report , indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15 ( d ) of the Securities Exchange Act of 1934. Yes No