Sort of coal with a calorific value greater than 23,865 megajoule per kilogram of the ash free en wet product. Of hard coal four sorts are distinguished, namely anthracite, cokes, blast furnace coal ...

Warrior is a large-scale, low-cost producer and exporter of premium quality met coal, also known as hard-coking coal (HCC), operating highly efficient longwall operations in its underground mines ...

A major focus of the social, political, and economic pressure to divest is coal mining, especially thermal coal. The fossil fuel is used to generate 34% of the world's electricity but produces ...