According to enterprise data, Taiyuan Metro Group Co., Ltd. was established on 20 12-05- 10, and its business scope includes investment, construction and operation of urban (intercity) rail transit construction projects; Rental of rail transit facilities; Management and technical consulting services for the construction of new subway lines; Planning and design management; Architectural engineering design; All kinds of engineering construction activities; Engineering management services; Engineering technical services (except planning management, survey, design and supervision); Construction project supervision; Sales of building materials; Inspection and testing services; Technical service, technical development, technical consultation, technical exchange, technology transfer and technology popularization; Urban public transport; Passenger ticketing agent; Urban rail transit equipment manufacturing; Railway transportation infrastructure equipment manufacturing; Mechanical equipment leasing; Transport equipment rental service; Development of rail transit operation management system: sales of rail transit special equipment, key systems and parts; Real estate development and management; Land remediation services; Landscaping engineering construction; Building cleaning service; Non-residential real estate leasing; Housing lease; Property management; Food industry (catering service); Parking service; Conference and exhibition services; Rental of computer and communication equipment; The first kind of value-added telecommunications services; The second kind of value-added telecommunications services; Internet information service; Internet sales (except for the sale of goods that need permission); Internet data service; Big data service; 5G communication technology services; Internet of things technology research and development; Information technology consulting services; Advertising design and agency; Advertising production; Advertising (non-radio stations, television stations, newspaper publishing units); Sales of arts and crafts and etiquette supplies (except ivory and its products); Organize cultural and artistic exchange activities; Tourism business; Technical services for solar power generation; Business training (excluding education training, vocational skills training and other training that requires permission); Labor service (excluding labor dispatch); Storage services for ordinary goods; Enterprise management information consultation; Residents' daily life service. (Projects subject to approval according to law can only be operated after approval by relevant departments)