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 30.04.2008 that it sold on 29.04.2008 8,500 HELEX common registered shares with a total value of euros 120,372.00;
b) on 30.04.2008 that it purchased on 29.04.2008 12,450 HELEX common registered shares with a total value of euros 175,236.36;
c) on 02.05.2008 that it sold on 30.04.2008 17,100 HELEX common registered shares with a total value of euros 240,742.00;
d) on 02.05.2008 that it purchased on 30.04.2008 25,600 HELEX common registered shares with a total value of euros 358,928.00.