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 08.10.2008 that it purchased on 07.10.2008 500 HELEX common registered shares with a total value of euro 4,059.40
2. on 08.10.2008 that it sold on 07.10.2008 1,400 HELEX common registered shares with a total value of euro 11,251.86
3. on 09.10.2008 that it sold on 08.10.2008 2,900 HELEX common registered shares with a total value of euro 23,792.48
All the above transactions were made for the derivatives market making account.