The Indices'' Advisory Committee, on its session held on 20.10.2003 approved the following changes with respect to the constituents of the ATHEX indices as such changes are derived in accordance with the Ground Rules for the Management & Calculation of the Price Indices of the Shares Market. It is reminded that for Composite Indices, the classification is derived from the numerical average of each share?s rating order of the historic value of transactions without share blocks for the period from 01/04 until 30/9 and the average market value for the same period. The changes will be effected immediately following the closing of the trading session on November 7, 2003, i.e. on November 10, 2003.

Up to its current composition, the ATHEX Composite Share Price Index represented 76.70% of the average market value of the Main Market of the ATHEX for the review period and 72.18% of the value of transactions without share blocks of the Main Market for the same period, viz. from 01/04 until 30/9.

The Main Market Composite Index, under its new composition represents henceforth 76.89% of the average market value of the Main Market of the ATHEX and 74.0% of the value of transactions without share blocks of the Main Market for the period in question (01/04-30/09).

Up to its current composition, the Parallel Market Price Index represented 57.13% of the average market value of the Parallel Market of the ATHEX for the review period and 61.80% of the value of transactions without share blocks of the Parallel Market for the same period, viz. from 01/04 until 30/9.

The Parallel Market Price Index, under its new composition represents henceforth 62.18% of the average market value of the Parallel Market of the ATHEX and 68.57% of the value of transactions without share blocks of the Parallel Market for the period in question (01/04-30/09).

Up to its current composition, the ATHEX High Velocity Index represented 1.35% of the average market value of the three and five-hour continuous trading for the period in review, and 8.30% of the value of transactions without share blocks of the three and five-hour continuous trading for the same period, viz. from 01/04 until 30/9.

The ATHEX High Velocity Index, under its new composition represents henceforth 1.54% of the average market value of the three and five-hour continuous trading and 12.35% of the value of transactions without share blocks of the three and five-hour trading for the period in question (01/04-30/09).

There will be no other changes in the composition of the following sector ATHEX Price Indices:

• ATHEX Banks Price Index

• ATHEX Insurance Price Index

• ATHEX Basic Metals Price Index

• ATHEX Real Estate Price Index

• ATHEX Oil Refineries Price Index

• ATHEX Non Metallic Minerals & Cement Price Index

• ATHEX Telecommunications Price Index

• ATHEX Food Price Index