 At its northern end, the expressway begins in Longnan County, Ganzhou, in Jiangxi province, at a future interchange with G45 Daqing–Guangzhou Expressway and an exit to China National Highway 105.Currently, the expressway continues north as the G45 Daqing–Guangzhou Expressway.However, when an extension of G45 to the west is completed between Longnan County and the city of Guangdong, a three-way interchange will be created between the Longnan–Heyuan Expressway and Daqing–Guangzhou Expressway.