The registration address of yamadong da yi new materials ltd. Is located on the third floor of the deep blue centre no. 55 of the taishan economic development zone in taishan, shandong province. The registration authority is the superintendency of the tai mountain market in taian city and is represented by legal persons and includes general projects: the development of new materials technology; the sale of construction materials; the sale of construction waterproofing scroll products; the sale of rubber products; the sale of building decoration materials; the sale of synthetic materials; the sale of eco-environmental materials; the sale of metal-based and ceramic-based materials; the sale of light construction materials; the sale of non-metal mines and products; the sale of high-performance sealed materials; the sale of metal materials; the sale of plastics and synthetic resins; the sale of new membrane materials; the sale of high-performance fibres and composite materials; the sale of sea sponge products; the sale of glass fibres and products; the sale of warm materials; the sale of glass fibres; the enhancement of plastics; the sale of technical services, technical advice, technology exchange, the transfer of non-metal metals; the retail of (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)