According to the enterprise data, Chongqing Three Gorges Landun Security Service Co., Ltd. was established in1988-1-22, and its business scope includes licensed business projects: labor dispatch business, security service, and official seal engraving (projects that need to be approved according to law can only be carried out after being approved by relevant departments, and the specific business projects are subject to the approval documents or permission of relevant departments). Property management; Cleaning services; Sales of security clothing and security equipment. Sales of Wujinjiaodian, catering management and consulting services (excluding catering services), land cargo transportation information consulting services, landscaping; Parking lot management; Fire technical services; Exhibition service; Rental of safety inspection equipment; Security equipment sales and installation, office equipment consumables sales, security system monitoring services, artificial intelligence industry application system integration services, information system integration services, security technology prevention system design and construction services (except for projects subject to approval according to law, independent business activities are carried out according to law with business licenses).