成南高速公路是沪蓉高速最末一段，东起千年绸都南充，西至天府之都成都，途径4市9区县，是东出四川的重要途径，全线东西横跨四川盆地，打开了东出四川的新通道，流量巨大，肩负着川内重要的运输任务。1999年11月1日开工建设，2002年12月23日全线建成并通车。公司承建该项目B3、E9、E10标段路面工程。

Chengdu-Nanchong Expressway：

Chengdu-Nanchong Expressway is the last section of Shanghai-Chengdu Expressway, east from Nanchong, which is famous for silk for thousand years and west to Chengdu, which is called the land of abundance, passing through four cities and nine districts and counties, it is a important channel to leave Sichuan from the east, the whole line stretches east to west across Sichuan Basin and opens a new channel to leave Sichuan from the east, where traffic is huge and it shoulders an important transportation task in Sichuan. The project was commenced on November 1, 1999 and completed and open to traffic on December 23, 2002. The company contracted to build pavement engineering for Bidding Sections B3, E9 and E10 of the project.