2615 | | Niobium (columbium), tantalum, vanadium or zirconium ores and concentrates: | | | | |
2615.10.00 | 00 | Zirconium ores and concentrates | kg | Free | | Free |
2615.90 | | Other: | | | | |
2615.90.30 | 00 | Synthetic tantalum-niobium (columbium) concentrates | kg | Free | | 30% |
2615.90.60 | | Other | | Free | | Free |
2615.90.60 | 30 | Niobium (columbium) ores and concentrates | kg | | | |
2615.90.60 | 60 | Tantalum ores and concentrates | kg | | | |
2615.90.60 | 90 | Vanadium ores and concentrates | kg V2O5 kg | | | |