| 26.15 | | Niobium, tantalum, vanadium or zirconium ores and concentrates |
| 2849.90 | 010 | - Boron carbide, niobium carbide and tantalum carbide |
| 7202.93 | 000 | Ferro-niobium |
| 8108.20 | 010 | 1 Titanium-niobium alloys |
| 8108.30 | 010 | 1 Titanium-niobium alloys |
| 8108.90 | 010 | 1 Of titanium-niobium alloys |
| 81.12 | | Beryllium, chromium, germanium, vanadium, gallium, hafnium, indium, niobium (columbium), rhenium and thallium, and articles of these metals, including waste and scrap |
| 8112.99 | 100 | 1 Of niobium-titanium alloys |
