Shareholder’s Name

Shareholder’s CNPJ or CPF

E-mail

Filling Instructions

Should a shareholder of Centrais Elétricas Brasileiras S.A. – ELETROBRAS ("Company" or "AXIA Energia") choose to exercise its right to vote remotely at the Company's Extraordinary General Shareholder’s Meeting ("EGM"), to be held on April 1, 2026, at 4:00 p.m., this remote voting ballot ("BVD") shall be fully completed, signed and submitted, as of this date, to: (i) Itaú Corretora de Valores S.A., bookkeeping agent of the shares issued by the Company ("Bookkeeping Agent"); (ii) the custodian agent responsible for the custody of the shares issued by the Company held by the shareholder, if such shareholder holds shares in custody and provided that such agent offers this service ("Custody Agent"); (iii) the central depositary in which the shares are deposited, if its shares are deposited with B3 ("Central Depositary"); or (iv) the Company, directly.

In order for the BVD to be considered valid: (i) the shareholder must indicate above his name (or corporate name) and its CPF or CNPJ number, as applicable, and, in the appropriate field below, the e-mail address for any inquiries; and (ii) the last page must be signed by the shareholder or its legal representative(s), as applicable and under the terms of the legislation in force. The Management Proposal for the EGM contains detailed instructions regarding the representation of shareholders. If the shareholder is considered a legal entity under Brazilian law, the signature must be made by its legal representatives or attorneys-in-fact duly empowered to do so.

The BVD sent directly to AXIA Energia must be accompanied by the documentation proving the status of shareholder or legal representative of the signing shareholder, observing, therefore, the requirements and formalities indicated in the Management Proposal. BVDs received up to 4 (four) days prior to the date of the EGM, that is, until March 28, 2026 (inclusive), will be admitted. BVDs received after such deadline will be deemed invalid and will not be processed or considered by the Company for purposes of the resolutions at the EGM. If necessary, the shareholder may correct or resubmit the BVD and the supporting documents, provided that the Company receives them by the final established deadline. If the shareholder decides to attend the EGM and dully accredited to do so, in person or by proxy, and expressly states the intention to vote in person, the voting instructions submitted through the BVD will be disregarded by the EGM’s board.

Pursuant to Article 6 of the Company's Bylaws, no shareholder or group of shareholders, Brazilian or foreign, public or private, is permitted to exercise voting rights in a number greater than the equivalent of ten percent (10%) of the total number of shares in which the Company's voting capital is divided, regardless of its interest in the capital stock. The concept of group of shareholders is set forth in Article 8 of the Company's Bylaws.

Instructions for sending your ballot, indicating the delivery process by sending it directly to the Company or submit voting instruction to the bookkeeping agent or the custodian

The BVD may be submitted alternatively to: (i) the Bookkeeping Agent; (ii) the Custody Agent, provided that they offers such service; (iii) the Central Depositary; or (iv) the Company, directly.

Shareholders whose shares are registered in the book-entry system may cast their remote vote through the Bookkeeping Agent. In this case, the BVD must be submitted through the Itaú Assembleia Digital website. To do so, it will be necessary to register and have a digital certificate. Information on the registration and step-by-step instructions for issuing the digital certificate are available at https://assembleiadigital.certificadodigital.com/itausecuritiesservices/artigo/home/assembleia-digital.

The Custody Agent may, but is not obligated to, receive the BVDs from the Company's shareholders. Shareholders are advised to verify with their respective Custody Agent whether it will provide such service, as well as its costs and procedures.

If the shareholder wishes to express their vote directly to the Central Depositary, it must submit its BVD through the electronic system made available by B3, in the "Investor Area" (available at https://www.investidor.b3.com.br/login), in the "Services" section, under the "Open Meetings" option. The Central Depositary may define operational rules and procedures for the organization and functioning of activities related to the collection and transmission of instructions for filling out the BVD, which must be observed by the shareholders.

AXIA Energia’s shareholders may also, at their sole discretion, complete the BVD through the https://atlasagm.com/ website or through the "Atlas AGM" application available on the Apple Store and Google Play Store ("Application"), in accordance with the Management Proposal. BVDs submitted to the Company by means other than the https://atlasagm.com/ website or the Application, will be refused and returned by the Company.

Postal and e-mail address for sending the remote voting ballot, if the shareholder chooses to deliver the document directly to the Company / Instructions on the electronic system for participation in meetings, if such form of participation is allowed.

The EGM will be exclusively digital, to be held through the digital platform of "Atlas AGM" ("Digital Platform"). Shareholders, their representatives or attorneys-in-fact, as applicable, who duly register by 11:59 p.m. on March 30, 2026, and access the Digital Platform by the time of the opening of the meeting, may participate in the EGM. Detailed information on the rules and procedures for participation via Digital Platform or through submission of the BVD is contained in the Management Proposal for the EGM, available on the Company’s website (https://ri.axia.com.br/), the Brazilian Securities and Exchange Commission’s website (https://sistemas.cvm.gov.br/) and B3 S.A. – Brasil, Bolsa, Balcão website (https://www.b3.com.br/pt_br/).

Indication of the institution hired by the company to provide the securities bookkeeping service, with name, physical and e-mail address, telephone number and contact person

Avenida Brigadeiro Faria Lima, No. 3.500, 3^rd floor - São Paulo

Shareholder service:

3003-9285 (capital cities and metropolitan regions)

0800 7209285 (other locations)

Service hours are on business days from 9:00 a.m. to 6:00 p.m.

Email: atendimentoescrituracao@itau-unibanco.com.br

[Eligible tickers in this resolution: AXIA3 and AXIA7]

1.     the Management Proposal for the authorization for the Company’s management to submit to B3 an application for the Company’s admission, even if on a conditional basis, to the Novo Mercado special listing segment and for the Company’s shares to be admitted to trading on such segment (“Migration to Novo Mercado”).

[Eligible tickers in this resolution: AXIA3 and AXIA7]

2.     the Management Proposal for the conversion of all class "A1" preferred shares issued by the Company ("PNA1" and "PNA1 Conversion", respectively), at a ratio of 1.1 common share ("ON") for each 1 PNA1 share, the effectiveness of which shall be subject to the fulfillment of the following conditions precedent ("Conditions Precedent - PNA1"): a. approval of the PNA1 Conversion at a special meeting of shareholders holding PNA1, pursuant to article 136, paragraph 1 of the Brazilian Corporations Law ("AGESP PNA1"); b. approval of the PNB1 Conversion (as defined in item (3) below); and c. authorization by B3 for the Migration to Novo Mercado.

[Eligible tickers in this resolution: AXIA3 and AXIA7]

3.     the Management Proposal for the conversion of all class "B1" preferred shares issued by the Company ("PNB1" and "PNB1 Conversion", respectively, and, together with the PNA1 Conversion, the "PN Conversions"), at a ratio of 1.1 ON share for each 1 PNB1 share, the effectiveness of which shall be subject to the fulfillment of the following conditions precedent ("Conditions Precedent - PNB1"): a. approval of the PNB1 Conversion at a special meeting of shareholders holding PNB1, pursuant to article 136, paragraph 1 of the Brazilian Corporations Law ("AGESP PNB1"); and b. authorization by B3 for the Migration to Novo Mercado.

[Eligible tickers in this resolution: AXIA3 and AXIA7]

4.      subject to the approval and effectiveness of the PN Conversions and the prior consent of ANEEL, the Management Proposal for the full amendment and consolidation of the Company's Bylaws to provide for: (iv.1) the update of the amount and composition of the capital stock; (iv.2) the result of the PNs Conversions; and (iv.3) the inclusion of the provisions required by B3's Novo Mercado Regulation ("Novo Mercado Regulation").

[Eligible tickers in this resolution: AXIA3 and AXIA7]

5.      subject to the approval and effectiveness of the PNB1 Conversion, the non-approval of the PNA1 Conversion at the AGESP PNA1, and the prior consent of ANEEL, the Management Proposal for the full amendment and consolidation of the Company's Bylaws to provide for: (v.1) the update of the amount and composition of the capital stock; (v.2) the result of the PNB1 Conversion; (v.3) the granting of full voting rights to the PNA1 shares; and (v.4) the inclusion of the provisions required by the Novo Mercado Regulation.

[Eligible tickers in this resolution: AXIA3 and AXIA7]

6.     the Management Proposal for the authorization for the Company’s management to take all necessary actions to implement the effective Migration to Novo Mercado.

/S/ Eduardo Haiama

Eduardo Haiama

Vice-President of Finance and Investor Relations