HELLENIC EXCHANGES - ATHENS STOCK EXCHANGE S.A.

Announcement of regulated information according to Law 3556/2007

Hellenic Exchanges S.A. announces, pursuant to Law 3556/2007 (articles 3 and 21) and in conjunction with article 11 of resolution 1/434/03.07.2007 of the Capital Market Commission, that EFG Eurobank Securities notified it:
1. on 31.07.2008 that it purchased on 29.07.2008 1,500 HELEX common registered shares with a total value of 13,609.00 euros
2. on 31.07.2008 that it sold on 29.07.2008 3,000 HELEX common registered shares with a total value of 27,142.00 euros
The above mentioned transactions were made for the derivatives market making account.