Based in Essen, Germany
Evonik is a German manufacturer of specialty chemicals. The company’s materials division provides polyetheretherketone moulding compounds for wafer handling, as well as ultrapure monosilane and chlorosilanes for silicon production. Evonik is also the world's largest supplier of pyrogenic metal oxides, which have applications within the chemical-mechanical planarisation process in the semiconductor industry. The company's performance materials division also produces flocculants for the removal of heavy metals from wastewater. In 2020, Evonik acquired PeroxyChem, which is the dominant supplier of hydrogen peroxide in the USA, controlling half of the market in the South, Central and Pacific Northwest regions of the country. Ultra-high-purity hydrogen peroxide is produced as a cleaning agent in semiconductor fabs.