Companhia Energetica de Minas Gerais CEMIG : Notice To Shareholders - Dividends/Interest on Equity

COMPANHIA ENERGÉTICA DE MINAS GERAIS - CEMIG

PUBLICLY-HELD COMPANY

Corporate Taxpayer's ID (CNPJ): 17.155.730/0001-64

Company Registry (NIRE): 31300040127

NOTICE TO SHAREHOLDERS

We hereby inform our shareholders that the Executive Board resolved on the declaration of Interest on Equity - IoE. Detailed information about the payment is as follows:

1. Gross value: R$417,974,000.00 (four hundred, seventeen million, nine hundred and seventy-four thousand reais)
2. Gross value per share: R$ 0.18994289564 per share, to be paid with the mandatory minimum dividend referring to 2023, with a 15% withholding income tax, except for shareholders exempt from said withholding, under the law in force;
3. Date "with rights": shareholders of record on September 25, 2023 that hold common and preferred shares will be entitled to the payment;
4. Date "ex-rights": 09-26-2023;
5. Payment date: 2 (two) equal installments, the first of which to be paid by June 30, 2024, and the second by December 30, 2024.

Shareholders whose shares are not held in custody at CBLC (Companhia Brasileira de Liquidação e Custódia) and whose registration data is outdated are advised to go to a branch of Banco Itaú Unibanco S.A. (the institution managing CEMIG's Registered Share System) bearing their personal documents for the due update.

Belo Horizonte, September 20, 2023.

Leonardo George de Magalhães

Chief Financial and Investor Relations Officer

Classification: Public