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 16.07.2008 that it purchased on 14.07.2008 1,000 HELEX common registered shares with a total value of euro 8,980.00
b) on 16.07.2008 that it sold on 14.07.2008 14,200 HELEX common registered shares with a total value of euro 125,138.62
c) on 16.07.2008 that it purchased on 15.07.2008 500 HELEX common registered shares with a total value of euro 4,390.00
d) on 16.07.2008 that it sold on 15.07.2008 9,200 HELEX common registered shares with a total value of euro 81,078.00.
The above mentioned transactions were made for the derivatives market making account.