The registration address of xiamen tsang xin xinxin materials ltd. Is located in room e, room 802 south zone park, located in xiamen city, and is the market supervision authority of xiamen city, represented by the legal person wu jingxi, and covers general projects: sales of eco-environmental materials; sale of fire-resistant materials; sale of plastics; manufacture of plastics; manufacture of plastic packaging boxes and containers; sale of packaging materials and products; sale of paper products; space services for entrepreneurship; science and technology promotion and application services; engineering and technological research and testing development; business management consulting; technical services, technology development, technical advice, technology exchange, technology transfer and technology promotion; technology extension services; new materials extension services; and new materials technology development. (in addition to projects subject to authorization under the law, the operation is carried out autonomously under a licence)。