Heraeus Holding is a technology company that specializes in precious and special metals, medical technology, quartz glass, sensors, and specialty light sources. Its products include synthetic fused silica, ceramics and composites, specialty chemicals, medical devices and products for surgical orthopedics and traumatology, high-precision temperature sensors, lamps and modules, electrical contact materials, etc. The company combines businesses in the environmental, electronics, healthcare, and industrial applications sectors.