Shanghai Metro Line 2 is Shanghai's second underground rail line, operated by Shanghai Metro Line 2 Operation Co., Ltd. It officially opened on June 11, 2000. Subsequently, east and west extensions, including stations at Hongqiao Railway Station and Zhangjiang High-Tech Park, were added. The line runs from Xujing East Station in Qingpu District, passes Nanjing Road, crosses the Huangpu River, and reaches the Zhangjiang High-Tech Park in Pudong New Area. It continues through Tangzhen, Chuansha, and other areas, finally arriving at Pudong International Airport. As of August 2014, the line is 64 kilometers long, with 30 stations, including 9 interchange stations, and three depots: Longyang Road, Chuansha, and Beizhai Road.