Mining of clays

This sub-class includes: - Mining of clays, kaolin; - Mining of clays, refractory clays and ceramic.

This sub-class excludes: - Mining of bituminous sand, see 06100 (Extraction of crude petroleum); - Mining of chemical and fertilizer minerals, see 08910 (Mining of chemical and fertilizer minerals); - Production of calcined dolomite, see 2394 (Manufacture of cement, lime and plaster); - Cutting, shaping and finishing of stone, see 23960 (Cutting, shaping and finishing of stone).