How many years can Caojiatan Coal Mine dig?

Caojiatan coal mine can be dug until the earth can't bear it. Caojiatan Coal Mine belongs to Caojiatan Mining Company of Shaanxi Coal Group, which is located in the hinterland of Mu Us Desert and more than half an hour's drive from the nearest town. After seven years of construction, Caojiatan Coal Mine was officially put into operation in 20 19, with an annual mining scale of150,000 tons. This is one of the largest coal mines put into production in China in recent two years.