2420

Precious Base Metal and Non-Iron Base Metal Industry

This subgroup includes: - The production of precious base metals, such as the production and refining of forged or non-forged precious metals like gold, silver, platinum, and others from ores and scraps. - Production of mixed precious metals. - Production of semi-finished precious metals. - Silver rolling into base metals. - Gold rolling into base metals or silver. - Platinum rolling and similar processes into gold, silver, or base metals. - Aluminum production from alumina. - Aluminum production through electrolytic purification processes from aluminum residues and scraps. - Production of mixed aluminum. - Semi-industrial aluminum. - Production of black tin, zinc, and white tin from ores. - Production of black tin, zinc, and white tin through electrolytic purification processes from residues and scraps of black tin, zinc, and white tin. - Production of mixed black tin, zinc, and white tin. - Semi-industrial black tin, zinc, and white tin. - Copper production from ores. - Copper production through electrolytic purification processes from copper residues and scraps. - Production of mixed copper. - Electrical fuse wire industry. - Semi-industrial copper. - Production of chrome, manganese, nickel, and others from ores or oxidation. - Production of chrome, manganese, nickel, and others through electrolytic purification and aluminothermic processes from residues and scraps of chrome, manganese, nickel, and others. - Production of mixed chrome, manganese, nickel, and others. - Semi-industrial chrome, manganese, nickel, and others. - Production of nickel mattes. - Uranium metal production from uranium ores (pitchblende) or other ores. - Smelting and refining of uranium. This subgroup also includes: - Metal wire industry. - Aluminum oxide (alumina) production. - Production of aluminum wrapping foil. - Aluminum (tin) foil coating industry made from aluminum (tin) foil as its main component. - Precious metal coating industry. This subgroup does not include: - Non-iron metal casting, see 2432. - Jewelry industry using precious metals, see 3211.