Centrais Eletricas Brasileiras S A Eletrobrás : CERTIFICATE MINUTES OF THE 899TH MEETING OF THE BOARD OF DIRECTORS OF CENTRAIS ELÉTRICAS BRASILEIRAS S.A. – ELETROBRAS (Form 6-K)

CERTIFICATE

MINUTES OF THE 899^TH MEETING OF THE BOARD OF DIRECTORS OF
CENTRAIS ELÉTRICAS BRASILEIRAS S.A. - ELETROBRAS

NIRE (Company Registration ID) No. 53300000859/

It is certified, for due purposes, that the 899th meeting of the Board of Directors of Centrais Elétricas Brasileiras SA - Eletrobras ('Company') was installed on the seventeenth day of the month of June of the year two thousand and twenty-one, at 2:05 pm, with a record of suspension of the works at 8:27 pm that same day. The meeting resumed on the eighteenth of June of the year two thousand and twenty-one, at 9:09 am, with the closing of the works registered at 2:08 pm The meeting took place via videoconference in a remote environment - Cisco WEBEX Meetings. Counselor RUY assumed the presidency of the work on both days of the meeting FLAKS SCHNEIDER (RFS). The Board Members RODRIGO LIMP NASCIMENTO (RLN), MARCELO DE SIQUEIRA FREITAS (MSF), ANA CAROLINA TANNURI LAFERTE MARINHO (ALM), BRUNO EUSTÁQUIO FERREIRA CASTRO DE CARVALHO (BEC), CARLOS EDUARDO RODRIGUES PEREIRA (CRP), ARMANDO CASADO DE ARAÚJO (ACA), JERÔNIMO ANTUNES (JEA), DANIEL ALVES FERREIRA (DAF) and ANA SILVIA CORSO MATTE (ASM) participated remotely in both days of the meeting. Board Member FELIPE VILLELA DIAS (FVD) participated only in the second day of the meeting. There was no record of absences from the meeting, understood as no participation in any segment of the conclave. The Secretary of Governance BRUNO KLAPPER LOPES (BKL) and the Advisor to the Board of Directors FERNANDO KHOURY FRANCISCO JUNIOR (FKJ). The following was held on June 18, 2021 informative presentation by the Corporate Management and Sustainability Board - DS: Report on the status of the Annual Variable Remuneration Program (RVA) of the Administrators, (year 2020) in light of SEST's final position and decision taken at the 061st Ordinary General Meeting of Eletrobras. The Corporate Management Board and Sustainability - DS presented the final position of the Secretariat for Coordination and Governance of the State Companies (SEST) on the rules to be observed for the RVA Program of the fiscal year 2020 and informed that it will arrange for the filing of the Program with the Brazilian Securities Commission - CVM, as defined by SEST. This certificate is drawn up and signed by me, BRUNO KLAPPER LOPES, Secretary of Governance of the Board of Administration of Eletrobras.

Rio de Janeiro, June 23, 2021.

BRUNO KLAPPER LOPES

Governance Secretary