Andreas Meier

Silhouette International Schmied AG designs, manufactures, and markets ophthalmic frames. The private company is based in Linz, AT, and has subsidiaries in Austria, Czechia, Spain, and the United Kingdom.

H.C. Starck GmbH engages in the provision of technoology metal powders and ceramics. It offers additive manufacturing services, rotary forging, extrude, and analytical services. The company was founded by Hermann C. Starck in 1920 and is headquartered in Munich, Germany.

RHI AG engages in the manufacturing of refractory products, systems and services. Its products include solutions for the cement, enrviro-energy-chemistry, glass, lime, nonferrous metals, raw materials, and steel industry. The company brands include Monofrax, Didier, Veitscher, Radex, Interstop, and Dolomite Franchi. It operates through the following segments: Steel, Industrial and Raw Materials. The company was founded in 1998 and is headquartered in Vienna, Austria.

Veitsch Radex AG is an Austrian company that specializes in manufacturing heat-resistant refractory products.

Lhoist SA engages in the production of limestone products. It offers building materials, flue gas treatment, iron and steel, non-ferrous metallurgical processing, animal nutrition, refractories, and polymers. The company was founded in 1889 and is headquartered in Limelette, Belgium.