Mining of lignite

Mining operations, drilling various qualities of lignite, such as mining lignite on the ground or underground, including mining by liquefaction (liquefaction). These mining operations include quarrying, crushing, washing, filtering and mixing and compaction of lignite to improve quality and facilitate transportation and storage or storage.

Coal mining

Mining operations, drilling various qualities of coal such as anthracite, bituminous and subbitominous, either above-ground or underground mining, including mining by liquefaction. These mining operations include excavation, crushing, washing, filtering and mixing and compaction to improve quality or facilitate transportation and storage or storage. Includes searching for coal from a culm bank

Gasification of coal in a mining location

Businesses to produce gas from coal at mining sites (on site gasification of coal).