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 23.10.2008 that it purchased on 22.10.2008 4,200 HELEX common registered shares with a total value of euro 30,678.00
2. on 23.10.2008 that it sold on 22.10.2008 10,700 HELEX common registered shares with a total value of euro 72,776.00
All the above transactions were made for the derivatives market making account.