Bii Railway Transportation Technology Holdings Co Ltd, formerly China City Railway Transportation Technology Holdings Company Limited, is an investment holding company principally engaged in the intelligent railway transportation business. The Company operates its business through three segments. The Intelligent Railway Transportation segment provides design, production, implementation and sale, and maintenance of application solution services, which includes related software, hardware and spare parts in railway transportation areas. The Infrastructure Information segment provides civil communication transmission services as well as design, implementation and sale of related software, hardware and spare parts in utility tunnel areas. The Business Development Investment segment manages the equity investments in railway transportation areas and infrastructure areas.