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 04.08.2008 that it purchased on 31.07.2008 500 HELEX common registered shares with a total value of euro 4,561.78
2. on 04.08.2008 that it purchased on 01.08.2008 1,000 HELEX common registered shares with a total value of euro 9,040.00
3. on 04.08.2008 that it sold on 01.08.2008 1,000 HELEX common registered shares with a total value of euro 8,980.00
4. on 04.08.2008 that it sold on 04.08.2008 6,100 HELEX common registered shares with a total value of euro 52,834.08
The above mentioned transactions were made for the derivatives market making account.