Corporate Taxpayer ID (CNPJ/MF): 50.746.577/0001-15 Company Registry (NIRE): 35.300.177.045
Publicly Held Company
COSAN S.A. (B3: CSAN3; NYSE: CSAN) ("Cosan" or "Company"), hereby announces to the holders of the 1stand 2ndseries of the 10thIssue of Simple, Unsecured, Non-Convertible, of the Unsecured Debentures of Cosan S.A., issued on June 28, 2024 (Code: CSANA0 e CSANB0), that the payment of interest on the Debentures will take place on December 29, 2025, through Itaú Corretora de Valores S.A. ("Itaucor"), the transfer agent, as shown below.
1stSerie | 2ndSerie | |
Unit price | R$ 78.53363400 | R$ 81.24235200 |
Number of Debentures | 725,000 | 725,000 |
The total gross amount to be paid is R$ 115,837,589.85 (One hundred fifteen million, eight hundred thirty-seven thousand, five hundred eighty-nine dollars and eighty-five cents).
The Company's Management, through the Investor Relations department, is available to
debenture holders, shareholders, and the market for further information.
São Paulo, December 26, 2025.
Rafael BergmanChief Financial and Investor Relations Officer