REN-Redes Energeticas Nacionais

Capital/Financing Update • Jul 27, 2022

Unofficial Translation

This is an unofficial translation of the communication 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

MOODY'S UPGRADES REN'S RATING TO 'Baa2' WITH STABLE OUTLOOK

In accordance with and for the purposes of article 17 of the Regulation (EU) Nr. 596/2014, of the European Parliament and of the Council, of 16 April 2014, article 29Q, nr. 3 of the Portuguese Securities Code and other applicable regulations, REN – Redes Energéticas Nacionais, SGPS, S.A. ("REN" or "Company") hereby discloses to the market the following information:

Today Moody's Investors Service ("Moody's") has upgraded the long-term issuer rating and the senior unsecured debt ratings of REN and its finance subsidiary REN Finance B.V, from 'Baa3' with positive outlook to 'Baa2' with a stable outlook.

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

Lisbon, 27 July 2022