Following the de-listing of the shares of the company IPIROTIKI SOFTWARE & PUBLICATIONS S.A. on 18 April 2005 from the ATHEX Parallel Market Price Index, ATHEX Parallel Total Return Index, ATHEX High Velocity Index and ATHEX Information Technology Price Index ? with no instant replacement by the shares of another company ? and according to par. 10.1.1. of the Ground Rules for the Management and Calculation of the of the Price Indices of the Shares Market of the ATHEX, the filling of the vacancies in the composition of the above Indices will take place after the end of the trading session of 3 May 2005

More specifically :

• The vacancy in the composition on the ATHEX Parallel Market Price Index is filled by the shares of the company KORDELLOS CH. BROS S.A.

• The vacancy in the composition on the ATHEX Parallel Total Return Price Index is filled by the shares of the company KORDELLOS CH. BROS S.A.

• The vacancy in the composition on the ATHEX High Velocity Index is filled by the shares of the company NEOCHIMIKI L.V. LAVRENTIADIS S.A. weighted by 100%.

• The vacancy in the composition on the ATHEX Information Technology Price Index is filled by the shares of the company M.L.S. MULTIMEDIA S.A.