This class includes mining of the various types of hard coal: anthracite, bituminous or other hard coal. Underground or open cut (strip) mining. Mining operations include cleaning, sizing, grading, pulverizing or other operations to classify, improve quality or facilitate transport. Operations to recover hard coal from culm banks are included.

Manufacture of briquettes or other solid fuels consisting chiefly of hard coal.

In-situ gasification of coal.

Exclusions: Lignite (brown coal) mining or peat digging and production of briquettes or agglomeration of these materials are classified in class 1020 (Mining and agglomeration of lignite) and 1030 (Extraction and agglomeration of peat), respectively.

Work performed to develop or prepare properties for mining coal is classified in class 4510 (Site preparation).