天津地铁
The Tianjin Metro is formerly operated by two companies, Tianjin Metro General Corporation and Tianjin Binhai Mass Transit Development Company. However, in 2017, the two companies merged as Tianjin Rail Transit Group Corporation. They are currently under heavy expansion from five to nine lines. Six lines are currently operating both in the City and the Binhai area. As of April 2019, the entire network of Tianjin Metro has 155 stations and 6 lines.