According to the exploration and evaluation of China's first ten million tons of porphyry copper deposit which was finished recently, the long-term copper resources in the Southern Tiegelong deposit are predicted to surpass 15 million tons.

From 2013 to 2015, a total of 10.98 million tons of copper were discovered at the Southern Tiegelong deposit in Gaize county, Tibet, which makes it China's largest single million-ton copper deposit.

The long-term copper deposit is estimated to exceed 15 million tons, marking a breakthrough in mine exploration in the region.