BII Railway Transportation Technology Holdings Company Limited, an investment holding company, provides intelligent rail transit system services in the People's Republic of China. The company operates through Intelligent Passenger Information Services; Data and Integration Services; Intelligent Infrastructure; and Business Development Investment segments. The company offers hardware and software products and services for high-speed rail, intercity, urban and suburban railway, subway, and other fields, which includes an integrated passenger information system, passenger services, operation and maintenance services of passenger information, integrated supervisory control system, and smart card automated fare collection system; and automated fare collection clearing center, traffic control center, communication integration, and operation and maintenance management systems for rail transportation, and operation and maintenance. It also provides information system services of civil communication transmission systems, utility tunnel areas, and integrated transportation hubs; and manages the equity investments in railway transportation and infrastructure areas. In addition, the company offers application solutions for the networking and controlling systems of public transport; spare parts in utility tunnel areas; and train control and remote diagnosis, and train network control systems. The company was incorporated in 2011 and is headquartered in Beijing, the People's Republic of China. BII Railway Transportation Technology Holdings Company Limited is a subsidiary of Beijing Infrastructure Investment (Hong Kong) Limited.