Henan Yanyi Building Materials Co., Ltd. is registered at Unit 203, Building 11, Yuefu Haitang Community, Intersection of Wenchang Road and Xianghe Road, Longhu Town, Xinzheng City, Zhengzhou City, Henan Province. The registration authority is Xinzheng Market Supervision Administration, and the legal representative is Wang Huijie. The business scope includes general projects: sales of building materials; Sales of coatings (excluding hazardous chemicals); Sales of insulation materials; Operation of wires and cables; Sales of special labor protection equipment; Sales of anti-corrosion materials; Sales of building waterproofing membrane products; Sales of building decoration materials; Wholesale of hardware products; Sales of ecological environment materials; Sales of lighting fixtures; Sales of daily necessities; Sales of household appliances; Import and export of goods; Technology import and export; External contracting projects; Construction of landscaping and greening projects; Indoor wooden door and window installation services; Residential water and electricity installation and maintenance services; Engineering management services; Leasing of construction machinery and equipment; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Research and development of new material technology; New material technology promotion services (except for projects that require approval according to law, business activities can be carried out independently with a business license) License projects: construction engineering construction (except for nuclear power plant construction and operation, civil airport construction); Construction project design; Construction labor subcontracting; Residential interior decoration and renovation (projects that require approval by law can only be carried out after approval by relevant departments, and specific business projects are subject to approval documents or permits from relevant departments)