"Thermal coal has a high calorific value, which is often called calories. There is no problem with power generation, that is, coking coal used for electric coal is mainly used for coking. Like many coking plants in Shanxi and Shaanxi, the coke produced is more valuable, and the coal tar produced is also a good thing. Oh, there is not much coking coal that should be directly used in metallurgy, but there is a lot of coke. Like blast furnaces, coke is generally used to refine molten iron, both as fuel and as reducing agent. "