Tranche Update on GEK TERNA Holdings, Real Estate, Construction S.A.'s Equity Buyback Plan announced on December 6, 2022.

GEK TERNA Holdings, Real Estate, Construction S.A. is a holding company organized around 5 areas of activity: - electricity production (73,1% of net sales): from renewable energies and from natural gas ; - infrastructure construction (21.3%): power plants, highways, etc.; - infrastructure management under concession agreements (5.1%): highways, parking lots, etc.; - production of industrial facilities and construction materials (0.4%): pylons, struts, wood constructions, cements, etc. ; - real estate development and property management (0.1%). Net sales are distributed geographically as follows: Greece (93.2%), Balkans (5.3%), Eastern Europe (0.8%) and others (0.7%).