Announcement

Announcement of regulated information according to Law 3556/2007

29 April 2008 ? 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 23.04.2008 that it sold on 22.04.2008 100 HELEX common registered shares with a total value of €1,468.00;

b)   on 23.04.2008 that it purchased on 22.04.2008 2,500 HELEX common registered shares with a total value of €36,252.76;

c)   on 24.04.2008 that it sold on 23.04.2008 2,968 HELEX common registered shares with a total value of €42,158.24;

d)   on 24.04.2008 that it purchased on 23.04.2008 9,500 HELEX common registered shares with a total value of €134,012.00;

e)   on 29.04.2008 that it sold on 24.04.2008 500 HELEX common registered shares with a total value of €6,968.00;

f)    on 29.04.2008 that it purchased on 24.04.2008 3,700 HELEX common registered shares with a total value of €51,204.00.