| 2620.19.60 | 20 | Lead content | Pb kg | | | |
| 2620.19.60 | 30 | Zinc content | Zn kg | | | |
| 2620.19.60 | 40 | Silver content | Ag g | | | |
| 2620.19.60 | 50 | Gold content | Au g | | | |
| 2620.21.00 | 10 | Copper content | Cu kg | | | |
| 2620.21.00 | 20 | Lead content | Pb kg | | | |
| 2620.21.00 | 30 | Zinc content | Zn kg | | | |
| 2620.21.00 | 40 | Silver content | Ag g | | | |
| 2620.21.00 | 50 | Gold content | Au g | | | |
| 2620.29.00 | 10 | Copper content | Cu kg | | | |
| 2620.29.00 | 40 | Silver content | Ag g | | | |
| 2620.29.00 | 50 | Gold content | Au g | | | |
| 2620.29.00 | 20 | Lead content | Pb kg | | | |
| 2620.29.00 | 30 | Zinc content | Zn kg | | | |
| 2620.30.00 | 10 | Copper content | Cu kg | | | |
| 2620.30.00 | 20 | Lead content | Pb kg | | | |
| 2620.30.00 | 30 | Zinc content | Zn kg | | | |
| 2620.30.00 | 40 | Silver content | Ag g | | | |
| 2620.30.00 | 50 | Gold content | Au g | | | |
| 2620.99.20 | 00 | Containing mainly tungsten | kg W kg | 17.6￠/kg on tungsten content + 3.8% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | $1.32/kg on tungsten content + 40% |
| 2620.99.75 | 60 | Silver content | Ag g | | | |
| 2620.99.75 | 80 | Gold content | Au g | | | |
| 2825.90.30 | 00 | Tungsten oxides | kg W kg | 5.5% | Free (A+,AU,BH, CA,CL,D,E,IL,J, JO,MA,MX, P,SG) | 45.5% |
| 2827.39.40 | 00 | Of tungsten | kg W kg | 5.5% | Free (A+,AU,BH, CA,CL,D,E,IL,J,JO, MA,MX, P,SG) | 45.5% |
| 2849.90.30 | 00 | Of tungsten | kg W kg | 5.5% | Free (A+,AU,BH, CA,CL,D,E,IL,J, JO,MA,MX, P,SG) | 55.5% |
