This class includes: - mining and preparation of ores valued chiefly for non-ferrous metal content: * aluminium (bauxite), copper, lead, zinc, tin, manganese, chrome, nickel, cobalt, molybdenum, tantalum, vanadium etc. * precious metals: gold, silver, platinum
This class excludes: - mining and preparation of uranium and thorium ores, see 0721 - production of aluminium oxide and mattes of nickel or of copper, see 2420