Engage in the technical development and sales of chemical products, chemical raw materials (excluding hazardous chemicals, precursors for drug manufacture, and refined oil), diamond sand flooring, cement-based composite materials, PVC anti-static flooring, and PV sheet flooring online; Operate e-commerce (requiring prior administrative approval if applicable); Engage in the import and export of goods and technologies online (except for projects that require prior approval as stipulated by laws, administrative regulations, and decisions of the State Council).