Fernando de Santiago Martín

Grupo Industrial Diversificado SL engages in the manufacture and distribution of steel. The firm specializes in the production of cold-formed steel tubes for the construction sector. It also produces welded cross-sections, open cross-sections, and different types of steel sheets. The company was founded by Alfonso Gallardo in 1964 and is headquartered in Jerez de los Caballeros, Spain.

Papresa SA engages in the manufacture and commercialization of pulp as well as paper products. It offers coldset and heatset printing. The company was founded in 1868 and is headquartered in Errenteria, Spain.