Hellenic Exchanges S.A. announces, pursuant to Law 3556/2007 (articles 3 and 21) and in conjunction with article 11 of resolution 1/434/03.07.2007 of the Capital Market Commission, that EFG Eurobank Securities notified it:

1. on 12.09.2008 that it sold on 09.09.2008 1,000 HELEX common registered shares with a total value of 7,910.00 Euro

2. on 12.09.2008 that it sold on 10.09.2008 10,800 HELEX common registered shares with a total value of 84,211.44 Euro

3. on 12.09.2008 that it purchased on 11.09.2008 1,800 HELEX common registered shares with a total value of 14,076.00 Euro

4. on 12.09.2008 that it sold on 11.09.2008 100 HELEX common registered shares with a total value of 770.00 Euro

5. on 15.09.2008 that it purchased on 12.09.2008 1,000 HELEX common registered shares with a total value of 7,757.26 Euro

6. on 15.09.2008 that it sold on 12.09.2008 3,900 HELEX common registered shares with a total value of 30,008.00 Euro

The above transactions were made for the derivatives market making account.