This industry comprises establishments primarily engaged in (1) smelting ores into nonferrous metals and/or (2) the primary refining of nonferrous metals (except aluminum) by electrolytic methods or other processes.

• Antimony refining, primary
• Bars made in primary copper smelting and refining mills
• Beryllium refining, primary
• Bismuth refining, primary
• Blister copper manufacturing
• Cadmium refining, primary
• Chromium refining, primary
• Cobalt refining, primary
• Copper alloys made in primary copper smelting and refining mills
• Copper concentrate refining
• Copper shapes (e.g., bar, billet, ingot, plate, sheet) made in primary copper smelting and refining mills
• Copper smelting and refining, primary
• Germanium refining, primary
• Gold bullion or dore bar produced at primary metal refineries
• Gold refining, primary
• Ingot, primary, nonferrous metals (except aluminum), manufacturing
• Iridium refining, primary
• Lead smelting and refining, primary
• Magnesium refining, primary
• Nickel refining, primary
• Niobium refining, primary
• Nonferrous metal (except aluminum) shapes made in primary nonferrous metal smelting and refining mills
• Nonferrous metals (except aluminum) made in primary nonferrous metal smelting and refining mills
• Nonferrous metals (except aluminum) smelting and refining, primary
• Platinum refining, primary
• Primary refining of copper
• Primary refining of nonferrous metals (except aluminum)
• Primary smelting of copper
• Primary smelting of nonferrous metals (except aluminum)
• Refining copper, primary
• Refining nonferrous metals and alloys (except aluminum), primary
• Rhenium refining, primary
• Selenium refining, primary
• Silver bullion or dore bar produced at primary metal refineries
• Silver refining, primary
• Slab, nonferrous metals (except aluminum) primary
• Smelting of nonferrous metals (except aluminum), primary
• Tantalum refining, primary
• Tellurium refining, primary
• Tin base alloys made in primary tin smelting and refining mills
• Tin refining, primary
• Titanium refining, primary
• Uranium refining, primary
• Zinc refining, primary
• Zirconium refining, primary