ZINIFEX

Common metals, namely zinc, lead, cadmium, and copper, and alloys of such metals; unwrought and partly wrought metals, namely zinc, lead, cadmium, and copper; metal ores and concentrates of zinc, lead, cadmium, and copper

Mining extraction of metals and metal ores

Treatment of materials, namely purifying, smelting, refining, alloying, galvanizing, and electrolyzing metals, metal ores, and metal concentrates