Business
Cosan S A : 12/19/2025 - Notice to Debentures Holders - Payment of interest
Cosan S A : 12/19/2025 - Notice to Debentures Holders - Payment of
About this update from Cosan S.a.
COSAN S.A. Corporate Taxpayer ID (CNPJ/MF): 50.746.577/0001-15 Company Registry (NIRE): 35.300.177.045 Publicly Held Company NOTICE TO HOLDERS OF THE 6 TH ISSUE OF SIMPLE, UNSECURED, NON-CONVERTIBLE DEBENTURES OF COSAN S.A. COSAN S.A. (B3: CSAN3; NYSE: CSAN) ("Cosan" or "Company"), hereby announces to the holders of the single series of the 6 th Issue 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 Bergman Chief Financial and Investor Relations Officer