GEK TERNA S.A.

FINANCIAL CALENDAR OF THE YEAR 2021 AMMENDMENT

GEK TERNA S.A., in its practice of providing accurate and timely information to investors and pursuant to article 4.1.2 & 4.1.4.3.1. of the Athens Stock Exchange Rulebook, announces the ammendment of its Financial Calendar of 2021:

Ordinary General Assembly of Shareholders: Thursday, July 1, 2021

The Company reserves the right to change the above dates following relevant notification to the Investors.