According to enterprise data, Beijing Hengyiyuan Construction Engineering Co., Ltd. was established in 1999-0 1-05, and its business scope includes licensed projects: construction projects; Highway management and maintenance; Subcontracting of construction services; Professional work in architecture; Electrical installation service. (Projects that need to be approved according to law can only carry out business activities after being approved by relevant departments. The specific business projects shall be subject to the approval documents or licenses of relevant departments. ) General projects: project management services; Property management; Landscaping engineering construction; Urban park management; Urban greening management; Socio-economic consulting services; Sales of traffic and public management signs; Sales of building materials; Crop seed management (only for packaged seeds that will not be repackaged); Parking service; Traffic facilities maintenance; Electrical equipment maintenance; Lighting equipment sales; Professional maintenance of communication switching equipment; Earthwork construction; Sales of building decoration materials; Mechanical equipment leasing; Municipal facilities management; Electrical equipment sales; Information consulting services (excluding licensed information consulting services); Urban and rural city appearance management. (Except for projects that must be approved according to law, conduct business activities independently according to law with the business license) (Do not engage in business activities of projects prohibited or restricted by the industrial policies of the state and this Municipality. )