This class includes :

Mining of lignite (brown coal): underground or surface mining, including mining through liquefaction methods

Washing, dehydrating, pulverizing, compressing of lignite to improve quality, facilitate, transport or storage

This class excludes :

Hard coal mining, see 0510;

Peat digging and agglomeration of peat, see 0892;

Test drilling for coal mining, see 0990;

Support activities for hard coal mining, see 0990;

Coke ovens producing solid fuels, see 1910;

Manufacture of hard coal briquettes, see 1920;

Work performed to develop or prepare properties for coal mining, see 4312.