Centrais Eletricas Brasileiras S A Eletrobrás : ELÉTRICAS BRASILEIRAS S/A (Form 6-K)

CENTRAIS ELÉTRICAS BRASILEIRAS S/A

CNPJ: 00.001.180/0001-26 | NIRE: 533.0000085-9

PUBLIC COMPANY

Centrais Elétricas Brasileiras S/A ('Company' or 'Eletrobras') (B3: ELET3, ELET5 & ELET6; NYSE: EBR & EBR.B; LATIBEX: XELT.O & XELT.B) hereby informs its shareholders and the market in general pursuant to article 12 of CVM Instruction 358/2002, as amended and currently in effect, it received, correspondence from 3G RADAR GESTORA DE RECURSOS LTDA informing that the investment funds ('Funds') 3G RADAR MASTER FUNDO DE INVESTIMENTO DE AÇÕES, XINGÓ FUNDO DE INVESTIMENTO DE AÇÕES, MALIKO INVESTMENTS LLC and MANUKA INVESTMENTS LLC, on June 21, 2021, increased their shareholding in Eletrobras, now holding the equivalent 28,259,000 (twenty-eight million, two hundred and fifty-nine thousand) class B preferred shares issued by the Company, corresponding to approximately 10.09% (ten point zero nine percent) of the preferred shares issued by the Company.

In the correspondence, it was informed that there is no agreement or contract regulating the exercise of voting rights or the purchase and sale of securities issued by the Company of which the signatory is a party, as well as that the momentary change in ownership interest did not aim, in any case, change the composition of the control or the administrative structure of the Company.

The full correspondence received by the Company is attached to this Market Announcement.

Rio de Janeiro, June 24, 2021

Elvira Cavalcanti Presta

CFO and Investor Relations Officer

This document may contain estimates and forecasts that are not statements of fact that occurred in the past but reflect our management beliefs and expectations and may constitute future events' forecasts and estimates under Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities and Exchange Act of 1934, as amended. The words 'believe', 'may', 'estimate', 'continue', 'anticipate', 'intend', 'expect' and related words are intended to identify estimates that necessarily involve risks and uncertainties, known or unknown . Known risks and uncertainties include, but are not limited to: general economic, regulatory, political and commercial conditions in Brazil and abroad, changes in interest rates, inflation and value of the Real, changes in volumes and the pattern of use of electricity by consumer, competitive conditions, our level of indebtedness, the possibility of receiving payments related to our receivables, changes in rainfall and water levels in the reservoirs used to operate our hydroelectric plants, our financing and capital investment plans, existing and future government regulations , and other risks described in our annual report and other documents filed with CVM and SEC. Estimates and forecasts refer only to the date they were expressed and we assume no obligation to update any of these estimates or forecasts due to the occurrence of new information or future events. Future results of the Company's operations and initiatives may differ from current expectations and the investor should not rely solely on the information contained herein. This material contains calculations that may not reflect accurate results due to rounding.

Free Translation

To Centrais Elétricas Brasileiras S.A. - Eletrobras

Rua da Quitanda, 196, Centro Rio de Janeiro - RJ

Cep: 20091-005

Mrs Elvira Baracuhy Cavalcanti Presta (CFO and Investor Relations Officer)

Ref .: Eletrobras Class B Preferred Shares - Notice IN CVM No. 358

Dear Sirs,

3G RADAR GESTORA DE RECURSOS LTDA. (CNPJ/ME 17.776.271/0001-36), headquartered in the city and state of Rio de Janeiro, at Av. Borges de Medeiros nº 633, room 501 ('MANAGER'), comes, under the terms of CVM Instruction 358/2002, as amended by CVM Instructions 369/02, 449/07, 547/14, 552/14 and 568/15, request you. the disclosure, through the IPE System, of the following 'Market Announcement':

MARKET ANNOUNCEMENT

3G RADAR MASTER FIA (CNPJ 18.324.976/0001-85), XINGÓ FIA (CNPJ 28.703.541/0001-03), MALIKO INVESTMENTS LLC (CNPJ 18.575.540/0001-69) and MANUKA INVESTMENTS LLC (CNPJ/ME 29.297.394/0001-73), investment funds and non-resident investors, all with their portfolios discretely managed by the 3G RADAR GESTORA DE RECURSOS LTDA ('Investors'), pursuant to CVM Instruction 358/2002, as amended, inform that in the as of June 21, 2021, Investors held the equivalent of 28,259,000 (twenty-eight million, two hundred and fifty-nine thousand) class B preferred shares issued of the Company, corresponding to approximately 10.09% (ten point zero nine percent) of the preferred shares issued by the Company.

The signatory clarifies that there is no agreement or contract regulating the exercise of voting rights or the purchase and sale of securities issued by the Company of which the signatory is a party, as well as that the momentary change in ownership interest did not aim, in any way change the composition of the control or the administrative structure of the Company.

We remain available for any clarifications.

This document may contain estimates and forecasts that are not statements of fact that occurred in the past but reflect our management beliefs and expectations and may constitute future events' forecasts and estimates under Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities and Exchange Act of 1934, as amended. The words 'believe', 'may', 'estimate', 'continue', 'anticipate', 'intend', 'expect' and related words are intended to identify estimates that necessarily involve risks and uncertainties, known or unknown . Known risks and uncertainties include, but are not limited to: general economic, regulatory, political and commercial conditions in Brazil and abroad, changes in interest rates, inflation and value of the Real, changes in volumes and the pattern of use of electricity by consumer, competitive conditions, our level of indebtedness, the possibility of receiving payments related to our receivables, changes in rainfall and water levels in the reservoirs used to operate our hydroelectric plants, our financing and capital investment plans, existing and future government regulations , and other risks described in our annual report and other documents filed with CVM and SEC. Estimates and forecasts refer only to the date they were expressed and we assume no obligation to update any of these estimates or forecasts due to the occurrence of new information or future events. Future results of the Company's operations and initiatives may differ from current expectations and the investor should not rely solely on the information contained herein. This material contains calculations that may not reflect accurate results due to rounding.