This week, Xstrata, another big mining firm, suspended operations at a nickel mine in the Dominican Republic while converting its power supply to run on coal, rather than-more expensive-oil.

Four miners were still trapped in a flooded coal mine in Shanxi. The accident occurred Friday afternoon in a coal pit run by the Lingshi coal mine.

This text explains to Xutuan coal mine west breeze well and main well a method, error margin for of run-through measuring analysis with anticipate.