Niobium Ore Concentrate (Columbite) from United States
Niobium ore concentrate, typically from columbite-tantalite, is enriched for niobium (columbium) extraction. It is classified under tariff item 2617.90.00 as an 'other' non-ferrous ore concentrate. The concentrate is essential for producing niobium used in aerospace superalloys and high-strength steel.
Duty Rate — United States → Canada
0%
Import Tips
• Verify the concentrate is not a tantalum ore, as that may be classified separately; if mixed, 2617.90.00 applies
• Declare the niobium metal content in kilograms per statistical note 1
• Ensure the processing history is limited to metallurgical industry norms to avoid exclusion under Chapter Note 2