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 single series of the 8thIssue of Simple, Unsecured, Non-Convertible, of the Unsecured Debentures of Cosan S.A., issued on November 21, 2023 (Code: CSAN18), that the payment of interest on the Debentures will take place on January 21, 2026, through Itaú Corretora de Valores S.A. ("Itaucor"), the transfer agent, as shown below.
Single Series | |
Unit price | R$ 83.53813100 |
Number of Debentures | 1,250,000 |
The gross total amount to be paid is R$104,422,663.75 (one hundred and four million, four hundred and twenty-two thousand, six hundred and sixty-three reais and seventy-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, January 20, 2026.
Rafael BergmanChief Financial and Investor Relations Officer

