Pursuant to the terms and for the purposes of article 248 of the Portuguese Securities code, EDP - Energias de Portugal, S.A. ("EDP") provides the following information to the market and general public:

In July 2010, along with the agreement to acquire a 29.43% stake of Naturgas Energía Grupo, S.A. ("Naturgas") from Ente Vasco de la Energia ("EVE") for €617 million plus interests, Hidroelétrica Del Cantábrico S.A. ("HC") and EVE agreed to a call option whereby HC could buy from EVE the remaining 5% stake in Naturgas for a price calculated in accordance with a pre-set formula.

Following the decision to exercise the above mentioned call option, EDP, through a subsidiary of HC, acquired today from EVE the remaining 5% stake in Naturgas for €33.3 million.

With this transaction, EDP increases to 100% its stake in the share capital of Naturgas, a leading player in gas distribution and supply in Spain with c.1 million clients.

EDP – Energias de Portugal, S.A.