According to enterprise data, Zhangjiakou Chen Yu Education Development Co., Ltd. was established on April 30, 2020, and its business scope includes educational project development, venue management services, cultural and artistic exchange activities planning, conference services, enterprise management consulting services, business information consulting services, computer network information technology consulting services, business agency services, sports event planning services, exhibition services, celebration etiquette services, photography services, enterprise planning services, and film and television services. Sales of stationery, books, newspapers, home accessories, building decoration materials, environmental protection equipment, metal materials, wood and products, waterproof materials, mechanical and electrical equipment, flower bonsai, water pump valves, handicrafts; Manufacture, installation and sales of complete sets of fluid control equipment and accessories; Indoor and outdoor decoration engineering, architectural decoration engineering, landscape engineering, mechanical and electrical equipment installation engineering, security engineering, earthwork engineering, steel structure engineering, water and electricity installation engineering, municipal engineering, housing construction engineering, water and electricity engineering, environmental protection engineering, water supply and drainage pipe network engineering, landscaping engineering; Technology research and development, technology promotion, sales and leasing of building materials; Production of aluminum alloy templates, sales of aluminum alloy templates and scaffolding; Environmental art design, architectural engineering design, urban planning design, sculpture design, landscape design, graphic design, artwork design; Design and make advertisements; Labor dispatch services, bidding agency services for construction projects; Clothing processing and sales. (Projects subject to approval according to law can only be operated after approval by relevant departments)