Hutchison Telecommunications Hong Kong Holdings Limited, an investment holding company, provides mobile communication services. It offers 4G long term evolution, 3G, and GSM dual-band mobile telecommunications under the 3 brand name. The company also provides voice services, including local, international direct dialing (IDD), and international roaming; 5G, wireless Internet access, international MMS, and SMS, as well as downloadable infotainment services; digital lifestyle and roaming services; 5G broadband, telemedicine, dietitian consultation, FinTech, gaming, and music applications; data plans; and develops business and corporate solutions comprising mobile business, information technology, smart city, Internet of Things, and big data. In addition, it offers mobile telecommunications products, including mobile handsets and accessories; international direct dialing and roaming services, mobile Wi-Fi, and other value-added services; marketing, advertising, and promotional services; and other products and services. The company was incorporated in 2007 and is headquartered in Central, Hong Kong. Hutchison Telecommunications Hong Kong Holdings Limited operates as a subsidiary of Hutchison Telecommunications Investment Holdings Limited.