Tranche Update on Terna Energy Societe Anonyme Commercial Technical Company's Equity Buyback Plan announced on April 29, 2020.

Terna Energy S.A. produces electricity from renewable energies. Net sales break down by activity as follows: - electricity production (83.3%): primarily from wind and hydraulic energies; - electricity trading (11%) ; - development and construction of electricity production plants (1.7%). The remaining sales (4%) are primarily from the construction and operation under concession of public infrastructure (biogas units and waste collection and treatment facilities). At the end of 2020, the group had a total installed capacity of 1,363.7 MW. Net sales are distributed geographically as follows: Greece (61%), Eastern Europe (14.7%) and Americas (24.3%).