HELLENIC EXCHANGES - ATHENS STOCK EXCHANGE S.A.

ANNOUNCEMENT REGARDING TAX AUDIT OF THE COMPANY

Hellenic Exchanges- Athens Stock Exchange S.A (ATHEX), in accordance with article 4.1.3.1 of the Athens Exchange Rulebook, informs investors that the tax audit findings note for fiscal years 2008, 2009 and 2010 was served by the Audit Center for Large Enterprises (KEMEP).

The company will inform investors in detail as soon as the tax audit is finalized.