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 21.10.2008 that it sold on 20.10.2008 5,990 HELEX common registered shares with a total value of euro 45,492.20
2. on 22.10.2008 that it purchased on 21.10.2008 11,500 HELEX common registered shares with a total value of euro 87,200.00
3. on 22.10.2008 that it sold on 21.10.2008 2,500 HELEX common registered shares with a total value of euro 19,050.00
All the above transactions were made for the derivatives market making account.