NOTICE TO THE MARKET

COSAN S.A. (B3: CSAN3; NYSE: CSAN) ("Cosan" or "Company") announces to its shareholders and the market in general that it was selectedfor the third consecutive year to be part of the 18th B3 Sustainability Index Portfolio ("ISE B3"), which will be effective from January 2, 2023 to December 31, 2023.

The B3 Sustainability Index is a sustainability performance indicator that aims to support investors in decision-making, in addition to encouraging the adoption of the best environmental, social and governance practices that contribute to the perpetuity of the business.

Being part of the ISE B3 portfolio once again reinforces the Company's journey of improvement and evolution, focusing on sustainable development and long-term value generation that is covered by the Group's entire portfolio.

São Paulo, December 28, 2022.

Ricardo Lewin

Chief Financial and Investor Relations Officer


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Cosan SA published this content on 28 December 2022 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 28 December 2022 18:26:30 UTC.