Tranche Update on Acciona, S.A.'s Equity Buyback Plan announced on March 1, 2024.

Acciona, S.A. is a building and public works group organized around five areas of activity: - design, construction and maintenance of infrastructures and buildings: roads, highways, tunnels, railroads, hydraulic facilities, wastewater processing plants, parking lots, hospitals, residences, etc.; - energy services: production of electricity (wind, water, solar, and biomass), engineering and construction of wind power plants, production of aero-generators and bio-diesel fuel; - water environmental services: design, construction and management of desalination units, distribution of potable water, wastewater treatment, etc.; - services: cleaning services (streets, hospitals, etc.), airport handling services, collection and processing of wastes, logistics services, etc.; - other: fund management, securities brokerage services, wine production, etc.