Athens Exchange Announcement

Following the decision of the Board of Directors of the Athens Exchange, taken on the 24th of November, according to which various amendments in the institutional framework (Rules of Operation and Resolutions) of the Alternative Market (EN.A) of ATHEX were approved, the implementation of the equation of the duration of the ATHEX trading session for EN.A., with the one of the Main Market of ATHEX, will be effective as of Monday, the 16th of January 2012