Xiaowan Hydropower Station located in the middle and lower reaches of the Lancangjiang River in Fengqing County and Nanrun County of Yunnan Province, 6 generating units with a total capacity of 4,200MW, and an overall storage capacity of 15.13 billion m3. With a thin double curved arch concrete dam, with a maximum height of 292m. CGGC has completed Chama highway, dam crest highway, external highway, excavation of dam abutment, and cable Crane platform of the Xiaowan Hydropower Station.