How long can the Pearl River Coal Mine in Inner Mongolia be dug?

The Pearl River Coal Mine in Inner Mongolia can still be dug for 350 years. Calculating the national coal mining volume of 3 billion tons per year, it can be mined nationwide for 350 years. Inner Mongolia is rich in coal resources, with a cumulative discovered resource reserves of 1,001.179 billion tons. Coal mines are areas where humans mine coal resources in coal-rich mining areas. They are divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, coal is mined by digging tunnels underground. This is an underground coal mine.