Global Link Communications Holdings Limited, an investment holding company, engages in the development, production, sale, service, and operation of train information system solutions in the People’s Republic of China and Hong Kong. The company offers train-borne closed-circuit television systems, onboard public address systems, and train-borne passenger information display systems, and passenger information display systems in LCD; and railway transit passenger information display system and train-borne passenger information system solutions. It is also involved in the development of telecommunication application software, URT video surveillance system solutions, URT radio system solutions, intelligence video surveillance systems, value-added telecommunication service systems, and large-scale call center and board-band telecommunication systems, as well as technology products and integrated solutions. In addition, the company provides spare parts and accessories; system software and hardware upgrades, technical support, system solutions, product support, operating after-sale, and customer relationship management services, as well as holds software rights.