 The Nanning–Youyiguan Expressway branches off from its primary expressway, G72, just before the western terminus of G72 in Nanning.The entire route is also part of Asian Highway 1.Along with the G7511 Qinzhou–Dongxing Expressway and G8011 Kaiyuan–Hekou Expressway, it is one of the three expressways that connect China with Vietnam.