Registry of RE4VJM

NOTICE N.º 0389/11

We hereby inform that, on 17^th March, 2011, 500 units of commercial paper, with a nominal value of 50.000,00 EUR, of the company REN - Redes Energéticas Nacionais, S.G.P.S., S.A., were registered, regarding the issue "REN S.G.P.S. - 22ª em PC - PRG 200M EUR", under the code RE4VJM.

This issue will be cancelled on 24^th March, 2011.

INTERBOLSA, 17^th March, 2011