TERNA ENERGY S.A., in order to provide accurate and timely information to investors and pursuant to article 4.1.2 & 4.1.4.3.1. of the Athens Stock Exchange Regulation, announces its Financial Calendar of 2022:

Announcement and release of the Fiscal Year 2021 Annual Financial Results and posting of the Fiscal Year 2021 Annual Financial Report, pursuant to the legal provisions, on the company’s website (www.terna‐energy.com) as well as on the website of the Athens Exchange (www.athexgroup.gr):  Thursday, April 14, 2022, before the opening of ASE’s trading.

Analysts Annual Briefing: Thursday, April 14, 2022

Ordinary General Assembly of Shareholders: Wednesday, June 22, 2022

Ex‐Dividend Date: Monday, July 4, 2022

Dividend Beneficiaries: Record date: Tuesday, July 5, 2022

Dividend Payout date: Monday, July 11, 2022

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