General Projects: Sales of chemical products (excluding licensed chemical products); Sales of building materials; Sales of new organic active materials; Sales of ecological environment materials; Sales of new catalytic materials and additives; Sales of high-performance sealing materials; Sales of anti-corrosion materials; Sales of thermal insulation materials; Sales of heat and sound insulation materials; Manufacturing of light-weight building materials; Manufacturing of new building materials (excluding hazardous chemicals); Manufacturing of building waterproofing membrane products; Manufacturing of ecological environment materials; Manufacturing of coatings (excluding hazardous chemicals); Construction of landscaping projects; Research and development of new materials; Technical promotion services for new materials (except for activities that require special approval, operate independently in accordance with the law based on the business license) License Projects: Construction engineering (except for activities that require special approval, operate in accordance with the provisions of the administrative approval file or license, the specific business scope is subject to the approved documents or licenses of the administrative approval department)