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 21.11.2008 that it purchased on 19.11.2008 1,500 HELEX common registered shares with a total value of euro 10,380.00
2. on 21.11.2008 that it sold on 19.11.2008 1,500 HELEX common registered shares with a total value of euro 10,418.36
3. on 21.11.2008 that it purchased on 20.11.2008 1,695 HELEX common registered shares with a total value of euro 11,106.30
4. on 21.11.2008 that it sold on 20.11.2008 10,700 HELEX common registered shares with a total value of euro 70,334.00
5. on 21.11.2008 that it sold on 20.11.2008 1,695 HELEX common registered shares with a total value of euro 10,983.60
6. on 24.11.2008 that it sold on 21.11.2008 5,100 HELEX common registered shares with a total value of euro 33,268.00
All of the above transactions, except numbers 3 and 5, were made for the derivatives market making account.