At 14:00 on December 5, 2018, CRIIC and Chairman of the Sino Nuclear Northwest Construction Group Liu Caihua and his party arrived in Siem Reap, Kingdom of Cambodia, visited the Minister of National Resources of Cambodia, Gao Shengli and general manager of the Cambodia Khmer Resources Investment Holding Group Wang Tanghua, conducted detailed communication and established preliminary cooperation intentions on mineral resources such as copper and gold mines, coal mines, bauxite mines, rare earth mines and chromite mines in Cambodia.