TDG Holding (天通控股控股份有限公司) is a company that engages in the research and development, manufacturing, and marketing of electronic materials, electronic components, and intelligent equipment.
Kuriyama Holdings (クリヤマホールディングス株式会社) is a supplier and manufacturer of industrial rubber, plastic products, flooring materials, and a distributor of sports apparel.
Duksan Techopia (덕산테코피아) is a company that specializes in organic light-emitting diode (OLED) and semiconductor materials, polymer catalysts, and synthetic rubber materials.
Weihai Guangwei Composites (威海光威复合材料股份有限公司) is a company that specializes in the research and development and production of carbon fiber and composite materials.
Grinm Advanced Materials (有研新材料股份有限公司) is a company that provides production, sales, research and development sales purity metallic and rare earth materials.