Section 15 Base metals and articles of base metal 74 Copper and articles thereof 74 02 Unrefined copper; copper anodes for electrolytic refining 74 02 00 Unrefined copper; copper anodes for electrolytic refining 74 02 00 00 Unrefined copper; copper anodes for electrolytic refining Commodity Code Description 74 02 00 00 000 Unrefined copper; copper anodes for electrolytic refining