Research and development: chemical reagents and additives, industrial pigments, polymer composite coloring materials, production and sales: automotive lightweight composite plastics, biodegradable composite plastics, functional film coloring composite materials, polymer composite coloring materials (none of the above exclude hazardous chemicals and Class I precursor chemicals); household appliance parts, auto parts, mechanical equipment and accessories, packaging products (excluding printing), metal products; sales: rubber products, chemical raw materials (excluding hazardous chemicals and Class I precursor chemicals), building materials, hardware and electrical machinery; import and export of goods. Operate other general business scopes that can be operated without administrative approval.