Section 15 Base metals and articles of base metal 81 Other base metals; cements; articles thereof 81 05 Cobalt mattes and other intermediate products of cobalt metallurgy; cobalt and articl Commodity Code Description 81 05 20 Cobalt mattes and other intermediate products of cobalt metallurgy; unwrought co 81 05 30 Waste and scrap 81 05 90 Other
