N

Refined and unrefined mineral products, namely, base metals and their alloys, metal ores and metal concentrates, copper ore, copper ore concentrate, zinc ore, and zinc ore concentrate for use in further manufacturing

Refined and unrefined mineral products, namely, precious metals and their alloys, gold and silver ores and concentrates, precious metal bullion, semi-wrought precious metals cast into button-shaped discs for use in further manufacture, and precious metal ore

Mining extraction

Material processing, namely, obtaining metals from native earth materials