Resource advantage: It is known as "the hometown of nonferrous metals in China", "the silver capital of China", "the key forest area in the south" and "Hunan energy base". At present, there are more than 70 kinds of proven mineral resources in 7 categories, among which the reserves of bismuth, molybdenum and microcrystalline graphite rank first in China, while the reserves of tungsten and lead-zinc ore rank third and fourth in China respectively. The replacement value of mineral resources is 265.6 billion yuan, and the per capita possession ranks first in the province.