Gonzalo Urquijo Fernández de Araoz

Fertiberia SA engages in the production, marketing, and sale of fertilizers and industrial chemicals. Its products include Sulphur, phosphoric, and nitric acid, as well as ammonium nitro-sulfate and potassium nitrate. The company was founded in 1975 and is headquartered in Madrid, Spain.

Part of ArcelorMittal SA, Aceralia Corp. Siderurgica SA is a steel producer. The private company is based in Madrid, Spain.

Arcelor-Mittal SA manufactures, processes & sells carbon steel and stainless steel products. It is a steelmaker involved in the production of carbon steel (coated steel sheet, cold and hot coils), long carbon steel (beams, sheet piling, and rails) and stainless steel for the construction, packaging, appliance and automotive industries. The company is founded in 2006 by merger between two steel companies, Arcelor and Mittal Steel. It is headquartered in Luxembourg City, Luxembourg.

The Group's principal activity is the production, processing and distribution of steel products. The Group operates in four key market segments - Flat Carbon Steel, Long Carbon Steel, Stainless Steel, and Arcelor Steel Solutions and Services. Under Flat Carbon Steel division, the Group's products cater to automotive industry, household appliances and heavy plates markets. Under Long Carbon Steel, the Group produces blooms and billets, bars and rebars, wire rod and wire products, beams, angles, channels, sheet piles and rails. Under Stainless Steel, the Group produces stainless steel and nickel alloys. Arcelor Mittal Steel Solutions and Services (AM3S) is a comprehensive group of the joined Arcelor and Mittal businesses which markets standard and processed steel and offer steel solutions. In 2006, the Group acquired Ewald Giebel and Dofasco. On 25-Jun-2006, Mittal Steel acquired 94% share capital of the Group.

Ferrovial SA engages in the investment and development of transportation infrastructures. It operates through the following segments: Construction, Toll Roads, Airports and Energy Infrastructures and Mobility. The Construction segment designs and performs of all manner of public and private works, including most notably the construction of public infrastructure. The Toll Roads segment focuses on the development, financing and operating of toll roads. The Airports segment focuses on the development, financing and operating of airports as well as integrated solutions for the development and management of electrical networks. The Energy Infrastructures and Mobility segment focuses on developing energy transmission and renewable energy infrastructure. The company was founded by Rafael del Pino y Moreno on December 18, 1952 and is headquartered in Madrid, Spain.

Part of ArcelorMittal SA, ArcelorMittal España SA is a Spanish company that manufactures, processes, distributes, and markets iron, steel, and metal products. The private company is based in Gozon, Spain.

Holding Gonvarri SL engages in financial investment and shareholding activities. Its interests focus on the steel manufacturing industry. The company was founded on July 26, 2002 and is headquartered in Bilbao, Spain.

Part of ArcelorMittal SA, ArcelorMittal Spain Holding SL is a Spanish company that specializes in the manufacture and distribution of various steel products. The private company is based in Madrid, Spain.

Aristrain is a Spanish company that manufactures steel and related products.

Corporación J.M. Aristrain SL is a private company based in Madrid, Spain. The Spanish company provides investment services.

Part of Abengoa SA, Abengoa AbeNewco 1 SA functions as a special purpose vehicle. The private company is based in Seville, Spain.