THESSALONIKI WATER AND SEWAGE COMPANY SA

SUPPLEMENTARY NOTICE OF PERCENTAGE OF VOTING RIGHTS OF GREEK STATE

Further to the previous announcement, EYATH SA announces that following the transfer from the Greek State of 14,520,000 shares of EYATH (a percentage of 40%) in the “Development of State's Private Property Fund SA” and an equal amount of voting rights the percentage of the Greek State to the company's share capital is 34.02%.