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 6thIssue of Simple, Unsecured, Non-Convertible, of the Unsecured Debentures of Cosan S.A., issued on June 20, 2023 (Code: CSAN16), that the payment of interest on the Debentures will take place on December 22, 2025, through Itaú Corretora de Valores S.A. ("Itaucor"), the transfer agent, as shown below.
Single Series | |
Unit price | R$ 87.50411100 |
Number of Debentures | 166,178 |
The total gross amount to be paid is R$ 14,541,258.16 (Fourteen million, five hundred and forty-one thousand, two hundred and fifty-eight reais and sixteen 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 19, 2025.
Rafael BergmanChief Financial and Investor Relations Officer