On May 14, 2010, Credit Suisse Group AG (Credit Suisse) notified EDP that, in accordance with article 20 of the Portuguese Securities Code, it came to hold 74,260,724 ordinary shares of EDP, which corresponds to 2.03% of EDP's share capital and 2.05% of the respective voting rights. The significant shareholding resulted from the acquisition off-market of 4,150,000 shares on May 12, 2010.

Credit Suisse also informed that the chain of entities (controlled by Credit Suisse Group AG) relevant for the calculation of the significant shareholding in accordance with number 1 of article 20 of the Portuguese Securities Code are the following:

Voting Rights held by Credit Suisse

- Credit Suisse AG, which holds 4,240,172 ordinary shares of EDP, corresponding to 0.12% of EDP's share capital and 0.12% of the respective voting rights;

-  Credit Suisse International, which holds 19,790,484 ordinary shares of EDP, corresponding to 0.54% of EDP's share capital and 0.55% of the respective voting rights;

- Credit Suisse Securities (USA) LLC, which holds 3,210,000 ordinary shares of EDP, corresponding to 0.09% of EDP's share capital and 0.09% of the respective voting rights;

- Credit Suisse Madrid Branch, which holds 130,080 ordinary shares of EDP, corresponding to 0.004% of EDP's share capital and 0.004% of the respective voting rights;

- Credit Suisse Securities (Europe) Ltd, which holds 37,704,536 ordinary shares of EDP, corresponding to 1.03% of EDP's share capital and 1.04% of the respective voting rights;

Voting rights held on behalf of Credit Suisse clients

- Clariden Leu AG, which holds 93,266 ordinary shares of EDP, corresponding to 0.003% of EDP's share capital and 0.003% of the respective voting rights;

- Credit Suisse (UK) Ltd, which holds 27,200 ordinary shares of EDP, corresponding to 0.001% of EDP's share capital and 0.001% of the respective voting rights;

- Credit Suisse Luxembourg SA, which holds 26,938 ordinary shares of EDP, corresponding to 0.001% of EDP's share capital and 0.001% of the respective voting rights;

- Credit Suisse Madrid Branch, which holds 905,675 ordinary shares of EDP, corresponding to 0.02% of EDP's share capital and 0.02% of the respective voting rights;

- Credit Suisse AG, which holds 6,761,675 ordinary shares of EDP, corresponding to 0.2% of EDP's share capital and 0.2% of the respective voting rights;

- Credit Suisse Italy Spa, which holds 18,845 ordinary shares of EDP, corresponding to 0.001% of EDP's share capital and 0.001% of the respective voting rights;

- Credit Suisse Singapore, which holds 28,500 ordinary shares of EDP, corresponding to 0.001% of EDP's share capital and 0.001% of the respective voting rights;

- Credit Suisse Securities (Europe) Ltd, which holds 1,313,353 ordinary shares of EDP, corresponding to 0.04% of EDP's share capital and 0.04% of the respective voting rights;

- Neue Aargauer Bank, which holds 10,000 ordinary shares of EDP, corresponding to 0.0003% of EDP's share capital and 0.0003% of the respective voting rights;
 

EDP – Energias de Portugal, S.A.