Asier Zarraonandia Ayo

Silvermet, Inc. engages in the acquisition, exploration, and development of mineral resources properties. Its activities include operation of Waelz kiln which recover zinc concentrates that are then treated by zinc smelters from steel companies. The company was founded on May 27, 1994 and is headquartered in Toronto, Canada.

Befesa Medio Ambiente SA provides waste treatment services. Its services include management and recycling of steel dusts from electric arc furnaces, management and recycling of stainless and special steel dusts, recovery of zinc, and integral recycling of salt slags, SPLs, filters dusts, and milling residues. The company was founded on September 9, 1993 and is headquartered in Seville, Spain.

Befesa Medio Ambiente SL operates as a holding company which engages in financial investment and shareholding activities. It provides waste recycling and refuse system management services to clients in the industrial sector. The company was founded on October 8, 2004 and is headquartered in Sevilla, Spain.

Befesa Steel Services GmbH is in the business of development of steel waste disposal and logistics solutions. It engages in steel and galvanization waste recycling activities. The company also provides their operational units with support in the acquisition of project permits and notifications. Befesa Steel Services was founded in 2005 and is headquartered in Ratingen, Germany.

Part of Arthur Andersen LLP, Arthur Andersen Société Civile is a company based in Luxembourg, Luxembourg.

Recytech SA engages in recycling of zinc-content waste. The company was founded in 1991 and is headquartered in Fouquieres-les-Lens, France.