Description Jiangsu Expressway Company maintains and operates the eight-lane Shanghai-Nanjing Expressway and other related toll expressways in Jiangsu Province. The Shanghai-Nanjing Expressway links Shanghai, China's largest metropolis, with Nanjing, the capital of Jiangsu province. The company also provides other road services along the expressway, including the management of bus services, fueling stations, traveler accommodations, restaurants, car maintenance and repair shops, and advertising.