Pursuant to the terms and for the purposes of article 16 and 20 of the Portuguese Securities Code and article 12 of the Portuguese Securities Commission Regulation no. 5/2008, EDP - Energias de Portugal SA ("EDP") has provided the following information to the market:

On May 21, 2012, Barclays Plc ("Barclays") notified EDP regarding the decrease of a qualifying holding of 2.06% to 1.82% of the EDP share capital. The change of the participation was due to an off-market transaction, as a result of the disposal of 11,000,000 shares (0.30% of EDP's share capital) on May 18, 2012.

As a result of this transaction, Barclays currently holds 66,665,557 shares, representing 1.82% of EDP share capital and 1.82% of its voting rights.

EDP – Energias de Portugal, S.A