Water Resources
Yunnan has sufficient rainfall and many rivers and lakes. The annual water flow originating in the province is 200 billion cubic meters, three times that of the Yellow River. The rivers flowing into the province from outside add 160 billion cubic meters, which means there are more than 10,000 cubic meters of water for each person in the province. This is four times the average in the country. The rich water resources offer abundant hydro-energy.
Mineral Resources
More than 150 kinds of minerals have been discovered in the province. The potential value of the proven deposits in Yunnan is 3 trillion yuan, 40 percent of which come from fuel minerals, 7.3 percent from metallic minerals, and 52.7 percent from nonmetallic minerals.

Yunnan tin deposits
Yunnan has proved deposits of 86 kinds of minerals in 2,700 places. Some 13 percent of the proved deposits of minerals are the largest of their kind in China, and two-thirds of the deposits are among the largest of their kind in the Yangtze River valley and in south China.. Yunnan has vast mineral resources that are its chief source of wealth. It is China's leading tin producer and has large deposits of iron, coal, lead, copper, zinc, gold, mercury, silver, antimony, and sulfur.
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