REN-Redes Energeticas Nacionais

Report Publication Announcement • Jan 21, 2021

Unofficial Translation

This is an unofficial translation of the proposal indicated below and it has been prepared for information purposes only. In the event of any discrepancy between this translation and the Portuguese version, the Portuguese version will prevail.

COMMUNICATION

In accordance with and for the purposes of article 17 of the Regulation (EU) No 596/2014, of the European Parliament and of the Council, of 16 April 2014, of article 248A of the Portuguese Securities Code and other applicable regulations, REN – Redes Energéticas Nacionais, SGPS, S.A. hereby informs the market and the public of the expected dates for the following 2021 corporate events:

• 2020 Annual Results: March 18th 2021 (after the closing of the market);
• General Shareholders' Meeting: April 23rd 2021;
• First Quarter 2021 results: May 13th 2021 (after the closing of the market);
• Second Quarter 2021 results: July 29th 2021 (after the closing of the market);
• Third Quarter 2021 results: November 11th 2021 (after the closing of the market).

In case of any changes to the dates of the financial calendar announced, REN will inform the market.

REN – REDES ENERGÉTICAS NACIONAIS, SGPS, S.A.

Lisbon, January 21st 2021