Acciona is the parent company of a construction group. Co. is engaged in general construction activities in the areas of civil engineering and buildings, including railways, marine and hydraulic works, motorways and airports, town planning, conduits, pavements, parking lots, and industrial and urban buildings. In addition, Co. is engaged in the provision of real estate services, the operation of parking lots, telecommunications, services, ecology and alternative means of energy. Co.'s operations are organized in six business divisions: Infrastructures, Real Estate, Energy, Water, Environmental & Urban Services and Logistic & Transport Services.

ADX Energy is engaged as an oil and gas exploration company. As of Dec 31 2015, Co. operated five oil and gas permits in North Africa and Europe, which under following projects: Kerkouane project located in Tunisia; Pantelleria project, Nilde project and Orlando project, which are located in Italy; and Romania project, which Co. held 50% interest on its project.

Ence Energia Y Celulosa is engaged in the manufacture and commercialization of wood pulp and derivatives. Co. divides its activities into the following two business lines: Forest Division: Co. manages timberlands in South America and the Iberian Peninsula. Co. is involved in trading of wood, and supplies solid wood products including: plywood, sawn timber, parquet flooring and glued-edge paneling. Co. is involved in forest and environmental consulting. Pulp Division and Energy Production: Co. is engaged in the production of Eucalyptus globulus-based TCF and ECF paper pulp. Co. is also involved in the generation of electricity through biomass power producing plants.

Greenalia SA is a Spain-based holding company (the Group) active in the forestry and energy sectors. It specializes in the purchase and sale, import, export, manufacture and general processing of all types of wood, as well as its transport. The Group develops its activities in five business lines: Electric power, Thermal energy, Industrial, Logistics and Forestry. Its Electric power activities are concentrated on renewable technologies, utilizing biomass and wind power. Thermal energy activities include thermal power production (heating and cooling) using biofuels (pellets and dry woodchips), which are produced by the Industrial division. The Logistics division covers the Group's logistic and export needs, including storage, stowage, transportation, customs and shipping agency, as well as delivers services to third parties. The Group's Forestry activities include forest mensuration and assessment, certification, logging and transport, as well as commercialization of forest products.

Grenergy Renovables Sl. Grenergy Renovables SL is a Spain-based company engaged in the marketing of energy recovery facilities. The Company develops projects and an Independent Power Producer (IPP) that generates renewable energy mainly through solar photovoltaic plants.

Iberdrola is a holding company. Through its subsidiaries, Co. operates in four segments: network business, which includes all the energy transmission and distribution activities, and other regulated activity originated in Spain, the U.K., the U.S. and Brazil; deregulated business, which includes electricity generation and sales businesses as well as gas trading and storage businesses carried on by Co. in Spain, Portugal, the U.K. and North America; renewable business, with activities related to renewable energies in Spain, the U.K., the U.S. and the rest of the world; and other businesses, including the engineering and construction businesses and the non-power businesses.

Gas Natural SDG is a gas company based in Spain. Co. and its subsidiaries are primarily engaged in the supply, transportation, distribution and commercialization of piped natural gas, as well as the activities involving exploration and developing, supply, regasification, liquefaction and storage of natural gas, and the generation and commercialization of electricity. Co. operates mainly in Spain and also outside of Spain, especially in Latin America, Puerto Rico, Italy, France and Africa (through Maghreb-Europe gas pipeline and integrated LNG projects in Algeria).