成南高速公路是滬蓉高速最末一段，東起千年綢都南充，西至天府之都成都，途徑4市9區縣，是東出四川的重要途徑，全線東西橫跨四川盆地，打開了東出四川的新通道，流量巨大，肩負著川內重要的運輸任務。1999年11月1日開工建設，2002年12月23日全線建成并通車。公司承建該項目B3、E9、E10標段路面工程。

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.