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☐ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 20 - F REGISTRATION STATEMENT PURSUANT TO SECTION 12 ( b ) OR ( 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 20 - F 1 MainDocument.htm 20 - F ☐ 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 ☐ Commission file number : 001-40155 COSAN S.A. ( Exact name of Registrant as specified in its charter ) COSAN INC . ( Translation of Registrant's name into English ) Federal Republic of Brazil ( Jurisdiction of incorporation or organization ) Av . Brigadeiro Faria Lima , 4,100- 16th floor São Paulo - SP , 04538-132 , Brazil +55 11 3897-9797 ( Address of principal executive offices ) Marcelo Eduardo Martins +55 11 3897-9797 ri@cosan.com Av . Brigadeiro Faria Lima , 4,100 – 16th floor São Paulo - SP , 04538-132 , Brazil ( 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 : Title of each class Trading Symbol CSAN American depositary shares , each representing one common share , no par value Common shares , no par value * Name of each exchange on which registered New York Stock Exchange New York Stock Exchange * Not for trading purposes , but only in connection with the listing of American Depositary Shares pursuant to the requirements of the Securities and Exchange Commission .