Director Andre Santos Esteves Resigns from Cosan S.A.

This filing reports that Director Andre Santos Esteves has resigned from his position at Cosan S.A. The filing indicates that Mr. Esteves directly and indirectly holds no securities of the company. His reporting owner ID is 0002129391 and his address is in Sao Paulo, Brazil. The resignation is effective as of March 18, 2026, with the signature date on the document being April 13, 2026. This change in directorship is a significant event for the company's governance structure.