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 26.06.2008 that it sold on 24.06.2008 37,900 HELEX common registered shares with a total value of euro 371,464.06
b) on 26.06.2008 that it purchased on 25.06.2008 1,300 HELEX common registered shares with a total value of euro 12,846.00
c) on 26.06.2008 that it sold on 25.06.2008 1,800 HELEX common registered shares with a total value of euro 17,724.00
d) on 27.06.2008 that it purchased on 26.06.2008 2,000 HELEX common registered shares with a total value of euro 19,107.70
e) on 27.06.2008 that it sold on 26.06.2008 7,800 HELEX common registered shares with a total value of euro 73,362.28.
The above mentioned transactions were made for the derivatives market making account.