Martifer SGPS SA (Martifer) is a Portugal-based holding company engaged in various business areas: Metallic Construction, Energy Systems, Electricity Generation and Agriculture and Biofuels. In the Metallic Construction area, the Company is mainly involved in the construction of stadiums, bridges, residential and commercial buildings, airports and industrial plants. In the Energy Systems field, Martifer is active in the construction of industrial facilities and equipment for the renewable energy sector. In the Electricity Generation segment, the Company is engaged in the production of electric energy from renewable resources, such as solar and wind. In the Agriculture and Biofuels area, Martifer mainly produces and distributes biodiesel. It operates in several countries, including Spain, Poland, Germany, Angola, Brazil and the United States. The Company has various subsidiaries, such as Martifer Inc and others.