Kay Michel

Opta Germany Holding GmbH is engaged in the provision of desulphurization and secondary metallurgy solutions for the steel industry. The company was founded in 2004 and is headquartered in Munich, Germany.

Affival Inc. specializes in treatment of liquid steel. The firm produces calcium bearing, aluminum rods, carbon, sulphur, iron, lead and bismuth and cored wires. Its services include spare parts, maintenance visits, and supervision. The company was founded in 1985 and is headquartered in Verona, PA.

SKW QUAB Chemicals, Inc. is a private company that manufactures and distributes cationizing reagents. The company is based in Saddle Brook, NJ.

ESM Group, Inc. supplies magnesium products and injectors for the steel industry. Its products include iron and steel desulphurization stations, magnesium metal powder products & reagents, equipment and systems for iron and steel treatment. The firm provides desulphurization and secondary metallurgy services, caster segment maintenance, equipment design & manufacturing and supply of specialty magnesium to non-steel related industries. The company was founded in 1957 and is headquartered in Amherst, NY.

Tecnosulfur SA provides hot metal desulphurization solutions for the steel industry. The private company is based in Sete Lagoas, Brazil. Tecnosulfur was acquired by SKW Stahl-Metallurgie Holding AG on December 23, 2009.

Affival SAS produces metal calcium. The company was founded in 1980 and is headquartered in Solesmes, France.