The weighting % of the shares of the company HYATT REGENCY S.A. (from 50.0% to 40.0%) is changed in all the FTSE/ATHEX Indices in which it is participating. The shares of the Company participate in the following Indices:

• FTSE/ATHEX 20

• FTSE/ATHEX International

• FTSE/ATHEX 140

• FTSE/ATHEX Travel & Leisure

All changes will be effective prior to the start of the trading session of the ATHEX on Thursday July 06, 2006.