The project starts from Xiatang Station, Chengdong Street, Leqing City, and ends at Renmin Road Station in Ruian City. The total length of the line is 63.63km. It is a key channel for rapid connection of coastal industrial development belt in the core area of Wenzhou metropolis in the future. SG2 is the starting section of the important channel, including Xiatang Station, Lecheng Station and main line, with a total length of about 7.8km, a total investment of 964 million, and a construction period of 28 months. The construction is expected to be completed in February 2022.