Manufacturing of architectural waterproof membranes; sales of architectural waterproof membranes; production and sales of coatings; sales of building materials; R&D of recycled asphalt technology; manufacturing and sales of petroleum products; production of sealing fillers; production of sealants; sales of sealing fillers; manufacturing and sales of rubber products; sales of high-performance sealing materials.
Research and development of nano new materials and powder new materials, production and sales of clean coal powder, lime products, limestone products, and dolomite products (excluding chemical projects)