Michael Thomas Faatz

Heraeus Quarzglas GmbH & Co. KG manufactures quartz glass for the optical, chemical, semiconductor, photovoltaic, high-tech, specialty fibers, solar, and medical technology industries. Its products include tubes, plates, ingots, rods, flanges, opaque blanks, cylinders, opaque quartz glass, quartz crucibles, quartz components, synthetic fused silica, material grades, fabricated quartz ware, lamp materials and optics. The company was founded on April 3, 1912 and is headquartered in Hanau, Germany.

QSIL SE manufactures and sells quartz glass products. The firm’s products and solutions include cylinders, tubes, rods and profiles, flat and oval tubes, twin an septum tubes, capillaries, fabricated quartzware, process tubes and SOL-GEL-products. The company was founded in 1992 and is headquartered in Langewiesen, Germany.