CSAN Cosan SA

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Issuer

Pursuant To Rule 13a-16 Or 15d-16 of the

Securities Exchange Act of 1934

For the month of May 2022

Commission File Number: 333-251238

COSAN S.A.

(Exact name of registrant as specified in its charter)

N/A

(Translation of registrant’s name into English)

 Av. Brigadeiro Faria Lima, 4100, – 16th floor
São Paulo, SP 04538-132 Brazil
(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40‑F:

Form 20-F ☒  Form 40-F ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Yes   ☐   No  ☒

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): 

Yes   ☐   No  ☒

COSAN S.A.

Corporate Taxpayer ID (CNPJ): 50.746.577/0001-15

Company Registry (NIRE): 35.300.177.045

Publicly Held Company

CVM 19836

MATERIAL FACT

COSAN S.A. (B3: CSAN3; NYSE: CSAN) (“Cosan”), in compliance with the provisions of CVM Resolution No. 44, of August 23, 2021, and following the material fact disclosed on July 28, 2021, informs its shareholders and the market in general that its subsidiary COMPASS GÁS E ENERGIA S.A. (“Compass”) concluded, on this date, the acquisition of 51% (fifty-one percent) interest of the capital stock of Petrobras Gás S.A. (“Gaspetro”), held by Petróleo Brasil S.A. (“Petrobras”). The total investment for the acquisition was R$2.097 billion, after the adjustments provided for in the contract.

São Paulo, July 11, 2022.

Ricardo Lewin

Chief Financial and Investor Relations Officer