The registration address of richen building materials ltd. In the city of tean is located at no. 3566, dragon spring road, taegau new district, shandong province. The registration authority is the development division of the teang city market supervision authority. The legal entity is represented by huang gueng shui and has a general scope of operation: development of new materials technology; manufacture of new membrane materials; manufacture of eco-environmental materials; marketing of new membrane materials; sale of synthetic materials; sale of high-performance fibres and composite materials; sale of building waterproof scroll products; sale of warmer materials; marketing of ecological environmental materials; sale of engineering plastics and synthetic resins; sale of rubber products; import and export of goods; sale of surface functional materials; sale of metal wires and their products; engineering and technical research and experimental development; research and development of mechanical equipment; sale of fibreglass enhanced plastics; sale of construction materials; sale of light construction materials; sale of metals; retailing of pentafin products; sale of machinery; sale of specialized chemical products (without dangerous chemicals). (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)