PROTON BANK S.A.

Purchase of own shares

In compliance to the No. 2273/2003 Regulation of the E.C. Committee dated December 22nd, 2003 Proton announces purchases of own shares as listed below, which were accomplished in accordance to article 16 par. 5 of L.2170/1920, in implementation of Annual Shareholders' Meeting decision of November 24th, 2006 and the Board of Directors' decision of May 8th, 2007.
(1) On September 21st, 2007 a total of 3,000 shares were purchased at the price of Euro 10.606 per share. Total value of the transaction was Euro 31,819.08.
(2) On September 26th, 2007 a total of 12,000 shares were purchased at the price of Euro 10.503 per share. Total value of the transaction was Euro 126,035.58.
The abovementioned 15,000 own shares, of total value Euro 157,854.66 were purchased through Proton Bank S.A. at an average purchase price of Euro 10.524 per share.