BII Railway Transportation Technology Holdings Company Limited, an investment holding company, designs, produces, implements, sells, and maintains application solutions in the People's Republic of China. The company's Intelligent Railway Transportation segment designs, produces, implements, sells, and maintains application solution services, including related software, hardware, and spare parts in railway transportation areas; and application solutions for the networking and controlling systems of public transport. Its products include passenger information system, automated fare collection system, automatic fare collection clearing centre, and traffic control centre. The company's Infrastructure information segment offers civil communication transmission services and related software, hardware and spare parts in utility tunnel areas. Its Business Development Investment segment manages the equity investments in railway transportation and infrastructure areas. The company was formerly known as China City Railway Transportation Technology Holdings Company Limited and changed its name to BII Railway Transportation Technology Holdings Company Limited in August 2017. 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.