China is one of the rare countries in the world that have time-honored history to utilize mineral resources.Coal,among others,is the important resource that is important for the national economy and people’s livelihood.

Liuhai Coal Mine Shaft is a coastal-type mine witn annual designed output of 900.000 tons of coal.Under this mine shaft brown coal is reserved.The recoverable reserves under it can hit 150 million tons.Moreover,under the sea area,large area of coal seams is reserved.The abundant coal reserves of high quality provide solid foundation for development of the industrial chain of Nanshan.