COMPANHIA DE SANEAMENTO DE MINAS GERAIS - COPASA MG
Publicly Held Company Corporate Registry (NIRE) 313.000.363-75
CNPJ No. 17.281.106/0001-03
Companhia de Saneamento de Minas Gerais - COPASA MG (B3: CSMG3) ("COMPANY" or "COPASA MG"), pursuant to CVM Resolution No. 44/2021 and further to the Material Facts disclosed on November 14, 2024, November 5, 2025 and December 17, 2025, hereby informs its shareholders and the market in general that it was informed by the State of Minas Gerais, its controlling shareholder, that, on this date, the selection of the financial institutions that will act as global coordinators of the syndicate of financial institutions in connection with the potential follow-on public offering of shares issued by the Company, to be carried out in the context of the privatization process, pursuant to State Law No. 25,664/2025 was defined (the "Offering").
The selected global underwriters are:
Banco BTG Pactual S.A., as Lead Underwriter;
Banco Itaú BBA S.A.;
Bank of America Merrill Lynch Banco Múltiplo S.A.;
Citigroup Global Markets Brasil, Corretora de Câmbio, Títulos e Valores Mobiliários S.A.; and
UBS BB Corretora de Câmbio, títulos e valores mobiliários S.A.
No public offering of securities is being conducted on this date. The completion of the Offering remains subject to, among other factors, the obtaining of applicable approvals (including corporate and creditor approvals), macroeconomic and market conditions, execution of definitive agreements and compliance with applicable regulatory procedures.
This Material Fact is for informational purposes only and does not constitute an offer to sell or a solicitation of an offer to buy any securities issued by the Company in Brazil, the United States of America or in any other jurisdiction.The Company will keep its shareholders and the market duly informed of any relevant developments regarding the matters described herein.
Belo Horizonte, February 20, 2026.
Adriano Rudek de Moura
Chief Financial and Investor Relations Officer