NOTICE N.º 0328/24

We hereby inform that, on 28^th March, 2024, 310.000.000,00 EUR of commercial paper, with a nominal value of 500.000,00 EUR, of the company REN - Redes Energéticas Nacionais, S.G.P.S., S.A., shall be registered, regarding the issue "REN - EURO-COMMERCIAL PAPER 310.000.000 EUR SERIES 10 (PRG 600M EUR-STEP)", under the code RE17JM (ISIN PTRE17JM0070).

This issue will be cancelled on 28^th May, 2024.

Euronext Securities Porto, 27^th March, 2024