China National Highway 338 will run from Haixing to Tianjun. It is one of the new trunk highways proposed in the China National Highway Network Planning (2013 - 2030).
Complete between Dianta and Fugu County.
Partially complete in Otog Banner. Under construction in Uxin Banner.
Planning phase between Zhongning and Zhongwei.
Completed between Jingtai County and border with Qinghai.
Planning phase in Menyuan County.