Companhia De Saneamento De Minas GeraisBMFBOVESPA: CSMG3

Notice to the Market - Change in the Earnings Release Schedule 4Q25 and 2025

· Issued by Companhia de Saneamento de Minas Gerais


Change in the Earnings Release Schedule 2025 and 4Q25

Companhia de Saneamento de Minas Gerais - COPASA MG (B3: CSMG3) announces the change in the date for 2025 and 4Q25 earnings release schedule:

  1. Earnings Release:

    February 25, 2026 (Wednesday) after market closure

    The financial information will be available on our website: ir.copasa.com.br

  2. Prohibition and Quiet Period :

    The Prohibition and Quiet Period is extended until February 25, 2026, therefore becoming effective from January 28 to February 25, 2026, due to the change in the earnings release date.

  3. Earnings Results Conference Call with simultaneous translation into English: February 26, 2026 (Thursday).

3 p.m. (Brasília).

1 p.m. (New York).

6 p.m. (London).

The details for participation in the event will be informed later by the Company.

ir@copasa.com.br

+55 (31) 3250-2015

ir.copasa.com.br

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