Introduction of Sichuan Chengnan expressway Co., Ltd.

In 2004, according to the arrangement of the Provincial Department of Transportation, Chengnan Company, as the project legal person, was responsible for the construction management and operation management of Suiyu expressway and Nanyu expressway. The two expressway were completed and opened to traffic in June 2007 and June 2008 respectively. In 2007, according to the deployment of the Provincial Department of Transportation, Sichuan Zhongtong Expressway Co., Ltd. (hereinafter referred to as "Zhongtong Company") was merged into Chengnan Company in June 2007, and Suihui expressway managed by Zhongtong Company was handed over to Chengnan Company for unified management. Since then, the company has been responsible for the South Section of expressway (G42), the South Section of expressway in Blue Ocean (G75), the Suiyu Section of Chengdu-Chongqing Ring Road (G93) and the Suihui Section of Provincial Highway (S 1 1) (Suihui Expressway). There are 26 toll stations along the line, including 5 toll stations on the main line and 2 toll stations on the provincial road.