China Unicom (Hong Kong) Limited, an investment holding company, provides telecommunications and related value-added services in the People's Republic of China. It also provides broadband, short message and multimedia message, mobile data, data and internet application, and information communications technology services. In addition, the company offers communications technology training, technical, and internet information and value-added telecommunications services; telecommunications network construction, maintenance, and technical services; and consultancy, survey, design, engineering procurement, and contract services relating to information and construction projects. Further, it provides customer, project consultation and monitoring, project bidding agency, property, e-payment, venture capital investment, technology development and promotion, investment, auto informatization, financial, consultation, internet data and security, 5G communications technology, AI industry application, internet connection and related, cloud computing, data processing, and tourism and information services; advertising design, production, agency, and publication services; information and system integration services; technology development, transfer, and consulting services; and technology promotion service of intelligent transportation system's products. Additionally, the company offers technology research and development of TV and mobile video; internet of things technology services; software development services; television broadcasting and satellite transmission services; and big data, and cloud computation and infrastructure services. It also provides finance leasing; and data analysis, processing, and application services, as well as sells handsets and telecommunication equipment. The company was incorporated in 2000 and is based in Central, Hong Kong. China Unicom (Hong Kong) Limited is a subsidiary of China Unicom (BVI) Limited.