On August 19, Gelunhui reported that Shandong Dongyue Organosilicon Materials (stock code 300821.SZ) stated on its investor communication platform that the company specializes in the research and development, production, and sales of organic silicon materials, including silicon rubber, silicone oil, silicone resin, and gas-phase white carbon black. The company does not produce refrigerants and refrigerant products, but its controlling shareholder Dongyue Group produces fluorine-containing refrigerant and refrigerant products.