Following the bulletin of the Company dated May 4, 2012, about the addition to the Corporate Financial Calendar of 2012 and the decision with protocol no. Κ2-4453 dated 22/6/2012 of the Minister of Development, Competitiveness and Shipping approving the decisions no. 11 and 12 of the Ordinary Shareholders' General Assembly of May 24, 2012, about the return of capital and the distribution of free shares to the Shareholders, the company TERNA ENERGY S.A. updates the Financial Calendar as follows:

Ex-date of the return of Capital: Tuesday, September 4, 2012, date preceding the date of expiry of the Index Futures, in which the shares of our Company participate.

Beneficiary Shareholders for the return of Capital: The Shareholders of the Company recorded as such in the records of the Dematerialized Security System (DSS) of Thursday, September 6, 2012 (record date).

Commencement of Payment of Return of Capital: Wednesday, September 12, 2012.

The return of capital shall be implemented through Banks, which will credit the accounts of the Operators. Details will be provided by further announcement of the company.

Ex-date of the beneficiaries of free shares: Wednesday, September 5, 2012 date preceding the date of expiry of the Index Futures, in which the shares of our Company participate.

Beneficiaries of free shares: The Shareholders of the Company recorded as such in the records of the Dematerialized Security System (DSS) of Friday, September 7, 2012 (record date).

Trading date of the new free shares: Wednesday, September 12, 2012.

The Company reserves the right to change the above dates, by immediately notifying the Investors.