Centrais Eletricas Brasileiras S A Eletrobrás : RELEVANT FACT (Form 6-K)

RELEVANT FACT

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) in compliance with the CVM Instruction ('CVM') No. 358, of January 3, 2002, as amended, informs its shareholders and the market in general that it will be published on August 11th Call Notice by the subsidiary Companhia de Geração e Transmissão de Energia Elétrica do Sul do Brasil - CGT Eletrosul SA ('CGT Eletrosul'), of an Extraordinary General Meeting, to resolve on the realization of the 3rd (third) issue of simple debentures, not convertible into shares, in 2 (two) series, of the type unsecured, of CGT Eletrosul, in the total amount of BRL 400,000,000.00 (four hundred million reais) on the date of Issuance, for public distribution with restricted efforts, pursuant to CVM Instruction 476, of January 16 2009, as amended by Law No. 6,385, of December 7 1976, as amended and other applicable legal and regulatory provisions, the realization of which is subject to prior approval by the Board of Directors of Eletrobras.

Of the total amount of the Issue, BRL 185,000,000.00 (one hundred and eighty-five million reais) correspond to the first series, issued pursuant to Law No. 12,431, of June 24, 2011, as amended ('Law 12,431'), and the remaining BRL 215,000,000.00 (two hundred and fifteen million reais) to the second series. This Relevant Fact is disclosed by the Company for informational purposes only, under the prevailing terms in force, and should not be interpreted or considered, for all legal purposes, as material or an effort to sell or offer.

This operation depends on the approval of the Eletrobras Board of Directors and the Extraordinary General Meeting of the subsidiary CGT Eletrosul.

The Company will keep the market informed of the progress of the Offer, pursuant to the applicable regulations.

Rio de Janeiro, August 10, 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.