Hafnium Sponge from Canada
Porous hafnium metal produced by reducing hafnium tetrachloride with magnesium, used in nuclear reactor control rods and aerospace alloys. Classified under HTS 8112.39.00.00 as 'other' hafnium not specified elsewhere in the hafnium heading, distinct from unwrought forms like powder or bars.
Duty Rate — Canada → United States
14%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Obtain certificates of purity analysis confirming hafnium content exceeds 99% by weight to avoid alloy classification under Chapter 81
• Declare as 'other hafnium' with detailed chemical composition; misdeclaration as waste/scrap triggers different environmental regulations
• Ensure end-use documentation for nuclear-sensitive materials to comply with export control re-import requirements