Duro Felguera. 

Established in 1858 and headquartered in Gijón, Spain, Duro Felguera, S.A. is a prominent international provider of comprehensive, ready-to-operate (turnkey) solutions for the energy, industrial, and oil and gas sectors. Its global footprint extends across Spain, Latin America, Europe, Africa, Asia, and other international markets. The company's operations are strategically divided into six key divisions: Energy, Mining & Handling, Oil & Gas, Services, Manufacturing of Capital Goods, and Communications and Control Systems. Within the Energy sector, Duro Felguera manages the complete lifecycle of power generation facilities, from initial engineering and supply to construction, assembly, commissioning, and ongoing operation and maintenance. This includes specialized turnkey projects for biomass and cogeneration plants, pellet production facilities, smart warehouses, and the construction, assembly, operation, and upkeep of wind farms. The Mining & Handling division specializes in various mineral processing techniques, including grinding, milling, classification, magnetic and gravity separation, flotation, heap/tank leaching, and waste sedimentation. It also delivers complete material handling solutions, such as port terminals and mine homogenization and storage yards. For Oil & Gas, the company offers full Engineering, Procurement, and Construction (EPC) services, covering the entire project scope from design and equipment sourcing to construction, commissioning, start-up, operation, and maintenance of various plants. This also involves the design and construction of specialized storage infrastructure like liquefied natural gas tanks, vertical and spherical storage tanks, and hydrocarbon fuel storage plants, alongside the operation and maintenance of refineries and storage facilities. The Manufacturing of Capital Goods segment focuses on designing and producing high-pressure vessels crucial for the oil and gas, petrochemical, and nuclear industries. Their product range encompasses large equipment shipped in a single piece, mounded storage bullets, heavy-wall reactors, coke drums, FCC units, modular construction components, unit packages, and nuclear components. Furthermore, the company provides advanced Communications and Control Systems. Initially known as Grupo Duro Felguera, S.A., the company officially adopted its current name in April 2001.