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 decision 1/434/03.07.2007 of the Capital Market Commission, that EFG Eurobank Securities notified it:
a) on 03.06.2008 that it purchased on 30.05.2008 3,400 HELEX common registered shares with a total value of euro 42,155.98
b) on 03.06.2008 that it purchased on 02.06.2008 775 HELEX common registered shares with a total value of euro 9,656.50
c) on 03.06.2008 that it sold on 02.06.2008 1,500 HELEX common registered shares with a total value of euro 18,780.00
d) on 05.06.2008 that it purchased on 03.06.2008 9,725 HELEX common registered shares with a total value of euro 120,829.68
e) on 05.06.2008 that it purchased on 04.06.2008 5,600 HELEX common registered shares with a total value of euro 66,922.00
f) on 05.06.2008 that it sold on 04.06.2008 2,300 HELEX common registered shares with a total value of euro 27,178.36
The above mentioned transaction was made for the derivatives market making account.