INVITATION
OF THE SHAREHOLDERS OF THE COMPANY
"HELLENIC EXCHANGES SOCIETE ANONYME HOLDING"
(Reg. Number 45688/06/Β/00/30)
TO AN EXTRAORDINARY GENERAL MEETING

In accordance with the law and the Articles of Association of the Company and following on the decision of its Board of Directors of 3.8.2006, the shareholders of Hellenic Exchanges Holding S.A. (HELEX), are invited to participate in the Extraordinary General Meeting of the Company, which will take place on Thursday August 31st 2006 at 17:00, at the former trading floor of Athens Exchange, at 10 Sophocleous St., Athens, Greece, in order to discuss and decide on the following items of the Daily Agenda:

1. Modifications of article 1 (Incorporation, Name, Commercial Name) and article 2 (Purpose of the Company) of the Company's Articles of Association
2. Various announcements

Shareholders who wish to participate in the Extraordinary General Meeting of the Company must block their shares, either through their authorized broker (provided their shares are registered in a User's Account in the Dematerialized Securities System-DSS), or via the Central Securities Depository-CSD in Athens (provided their shares are registered in the Special Investor?s Account in the DSS) and to submit the relevant CSD certificates blocking the shares for participation in the General Meeting as well as the relevant representation documents, at the company?s headquarters (1 Pesmazoglou St., 4th floor, Athens - Greece), by Wednesday, 25.8.2006.

Athens, 3.8.2006
The Board of Directors