Mining of hard coal
lignite mining, see 05200. peat digging, see 08921 and agglomeration of peat, see 08922. support activities for hard coal mining, see 09900. test drilling for coal mining, see 09900. coke ovens producing solid fuels, see 19100. manufacture of hard coal briquettes, see 19201. work performed to develop or prepare properties for coal mining, see 43124
underground or surface mining, including mining through liquefaction methods
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