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 04.07.2008 that it purchased on 02.07.2008 300 HELEX common registered shares with a total value of euro 2,454.00
b) on 04.07.2008 that it sold on 02.07.2008 6,000 HELEX common registered shares with a total value of euro 48,608.00
c) on 04.07.2008 that it purchased on 03.07.2008 5,100 HELEX common registered shares with a total value of euro 41,226.00
d) on 04.07.2008 that it sold on 03.07.2008 4,400 HELEX common registered shares with a total value of euro ?35,348.00
The above mentioned transactions were made for the derivatives market making account.