| 2607.00.00 | 10 | Copper content | Cu kg | | | |
| 2607.00.00 | 20 | Lead content | Pb kg | | | |
| 2607.00.00 | 30 | Zinc content | Zn kg | | | |
| 2607.00.00 | 40 | Silver content | Ag g | | | |
| 2607.00.00 | 50 | Gold content | Au g | | | |
| 2608.00.00 | 10 | Copper content | Cu kg | | | |
| 2608.00.00 | 20 | Lead content | Pb kg | | | |
| 2608.00.00 | 30 | Zinc content | Zn kg | | | |
| 2608.00.00 | 40 | Silver content | Ag g | | | |
| 2608.00.00 | 50 | Gold content | Au g | | | |
| 2610.00.00 | 20 | Having a chromium content equivalent to not more than 40 percent chromic oxide (Cr2O3) | t Cr2O3 t | | | |
| 2610.00.00 | 40 | Having a chromium content equivalent to more than 40 percent but less than 46 percent chromic oxide (Cr2O3) | t Cr2O3 t | | | |
| 2610.00.00 | 60 | Having a chromium content equivalent to 46 percent or more chromic oxide (Cr2O3) | t Cr2O3 t | | | |
| 2611.00 | | Tungsten ores and concentrates: | | | | |
| 2616.10.00 | 10 | Copper content | Cu kg | | | |
| 2616.10.00 | 20 | Lead content | Pb kg | | | |
| 2616.10.00 | 30 | Zinc content | Zn kg | | | |
| 2616.10.00 | 40 | Silver content | Ag g | | | |
| 2616.10.00 | 80 | Gold content | Au g | | | |
| 2616.90.00 | 10 | Copper content | Cu kg | | | |
| 2616.90.00 | 20 | Lead content | Pb kg | | | |
| 2616.90.00 | 50 | Other precious metal content | g | | | |
| 2616.90.00 | 30 | Zinc content | Zn kg | | | |
| 2616.90.00 | 40 | Gold content | Au g | | | |
| 2620.19.60 | 10 | Copper content | Cu kg | | | |
