Section 15 BASE METALS AND ARTICLES OF BASE METAL 81 Other base metals; cermets; articles thereof 81 03 Tantalum and articles thereof, including waste and scrap. 81 03 20 81 03 20 00 Commodity Code Description 81 03 20 00 00 - Unwrought tantalum, including bars and rods obtained simply by sintering; powders 81 03 30 00 00 - Waste and scrap 81 03 90 00 00 - Other 81 03 91 00 00 Crucibles 81 03 99 00 00 Other