ESK - SIC GmbH

The company operates electric smelting works, manufactures chemical products in particular silicon carbide, holds interests in related companies, trades raw materials and provides technical and business consulting. ESK‑SIC GmbH is specialized in producing grain sizes and fractions of crystalline silicon carbide used worldwide by customers in the abrasives, ceramics, refractory, electronics and composite industries as well as in particulate filters and thermal insulation. The head office is in Frechen‑Grefrath; organizational units comprise production, personnel, controlling, sales, engineering and research & development, and the company employed on average 155 employees in the fiscal year. Approximately 4.7% of net sales were spent on research and development; seven employees work in R&D and the RECOSiC process developed with Fraunhofer IKTS was further advanced in 2024 with a target industrial readiness from 2028.