Hutchison Telecommunications Hong Kong Holdings Limited is a Hong Kong-based telecom company. The Company is an integrated telecommunications service operator based in Hong Kong. It operates in three segments: mobile business and fixed-line business. The Company in Hong Kong provides 4G, 3G, global system for mobile (GSM) dual-band and wireless fidelity (Wi-Fi) services mobile telecommunications services under the 3 brand through Hutchison Telephone Company Limited (HTCL), a subsidiary of HTHKH incorporated in Hong Kong. In Macau, it provides GSM dual-band, 2G and 3G mobile telecommunications services and mobile telecommunications operator in terms of subscriber numbers. Fixed -line business operates in four categories; International and Carrier Business, Corporate Business, Data Centre Business and Residential Broadband Service.