SmarTone Telecommunications Holdings Limited, an investment holding company, provides telecommunication services in Hong Kong and Macau. The company offers voice, multimedia, and mobile and fixed fiber broadband services for the consumer and corporate markets. It also engages in the sale of handsets and accessories; issuance of guaranteed notes; and provision of customer support and telemarketing services. The company was founded in 1992 and is headquartered in Kwun Tong, Hong Kong. SmarTone Telecommunications Holdings Limited is a subsidiary of Sun Hung Kai Properties Limited.