I N V I T A T I O N

To the Shareholders of the Company named

"ATHENS WATER SUPPLY AND SEWERAGE COMPANY, S.A.”
(EYDAP S.A.)

General Commercial Register Number 121578960000

to an Extraordinary General Meeting

By a decision which was taken in accordance with the Law and the Company's Articles of Association at its meeting of March 11th, 2026, the Board of Directors of the Company named "Athens Water Supply and Sewerage Company (EYDAP S.A.)", the Shareholders of the Company are invited to an Extraordinary General Meeting on  April 3rd, 2026 , Friday at 10:00 a.m. , which will be held entirely by remote participation of the Shareholders via teleconference and by electronic means, in order to discuss and decide upon the following items of the Agenda:

1. Election of one (01) Member of the Board of Directors of EYDAP S.A. by the majority Shareholder.
2. Appointment of an Independent Member of the Board of Directors of EYDAP S.A. in accordance with articles 5 par. 2 and 9 par. 1 and 2 of Law 4706/2020.
3. Various Announcements.

In case of failure to reach the quorum required by the Law and the Articles of Association to decide on any issue of the Agenda, the Shareholders are invited to a Repetitive General Meeting, which will take place, without publication of a new Invitation, on April 16th, 2026, Thursday, at 10:00 a.m. , with the same Agenda as above, in real time by teleconference and by electronic means.

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