Approval of an amendment of the Internal Rules of Operation - Corporate Governance

ATHENS WATER SUPPLY & SEWAGE Co.

Approval of an amendment of the Internal Rules of Operation - Corporate Governance

Athens, November 1^st2018

Approval of an amendment of the Internal Rules of Operation - Corporate Governance

EYDAP S.A. informs the investment community that at the meeting of the Board of Directors of October 31^st, 2018, was adopted with immediate effect the new version of the Corporate Governance Code - Internal Rules of Operation and the revised Organizational Chart of the Company.