COMPANHIA ENERGÉTICA DE MINAS GERAIS - CEMIG

PUBLICLY-HELD COMPANY

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

Company Registry (NIRE): 31.300.040.127

NOTICE TO THE MARKET

Request for clarification on an atypical fluctuation

On November 1, 2023, the Company received Official Letter CVM B3 1240/2023-SLS, as follows:

B3 Questioning

COMPANHIA ENERGÉTICA DE MINAS GERAIS - CEMIG

Attn.: Mr. Leonardo George de Magalhães

Investor Relations Officer

Ref: Request for clarification on an atypical fluctuation

Dear Sir/Madam,

Given the latest fluctuations in the price of the company's securities, the number of trades, and the trading volume, as shown below, we hereby request you to inform us, by 11/03/2023, if you are aware of any fact that can justify these fluctuations.

Preferred Shares

Prices (R$ per share)

Date

Opening

Minimum

Maximum

Average

Close

Fluctuation

#

Amount

Volume (R$)

%

Trades

10/19/2023

11.66

11.61

11.92

11.79

11.78

0.86

14,838

9,541,600

112,451,306.00

10/20/2023

11.71

11.63

11.83

11.78

11.81

0.25

13,751

20,546,400242,024,918.00

10/23/2023

11.81

11.75

11.99

11.92

11.91

0.85

10,033

6,187,900

73,753,071.00

10/24/2023

12.04

11.85

12.04

11.93

11.93

0.17

10,728

4,901,000

58,459,210.00

10/25/2023

11.93

11.85

11.99

11.90

11.85

-0.67

11,929

5,503,800

65,498,990.00

10/26/2023

11.95

11.90

12.18

12.11

12.16

2.62

12,803

7,682,800

93,026,386.00

10/27/2023

12.21

11.89

12.27

12.02

11.93

-1.89

11,748

6,954,900

83,572,418.00

10/30/2023

11.95

11.73

12.07

11.87

11.77

-1.34

13,865

8,387,800

99,562,691.00

10/31/2023

11.77

11.66

11.84

11.73

11.74

-0.25

9,803

5,916,500

69,406,150.00

11/01/2023*

11.82

11.81

12.35

12.16

12.30

4.77

29,605

23,145,700281,475,263.00

* Last updated at 5:57 p.m.

CEMIG's Answer

Dear Ms. Ana Lucia Pereira,

Companhia Energética de Minas Gerais - CEMIG ("Cemig" or "Company"), in response to the Official Letter 1240/2023-SLS of November 01, 2023, through which you request information on any fact known by the Company about the latest fluctuations recorded in its shares, the increase in the number of trades, and the quantity traded, according to the tables above, clarifies that it is not aware of any fact arising from its activities or business that could cause fluctuations, which has not been properly disclosed by the Company under the specific regulations, especially CVM Resolution 44/2021.

The Company reiterates its commitment to transparency and the best market disclosure practices.

Belo Horizonte, November 03, 2023.

Leonardo George de Magalhães

Chief Financial and Investor Relations Officer

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CEMIG - Companhia Energética de Minas Gerais published this content on 03 November 2023 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 06 November 2023 18:28:10 UTC.