Refined Borax Granules for Glass Production from Canada
Granular refined disodium tetraborate optimized for fiberglass and glass flux applications. Falls under HTS 2840.19.00.00 as other refined borax, a chemically defined inorganic salt per Chapter notes. Not a luminophore or graphite product excluded by note 6.
Duty Rate — Canada → United States
10.1%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify granule size and B2O3 assay in invoices for glass-grade verification
• Pitfall: Granules mistaken for fertilizers under 3105
• Ensure no organic admixtures per note 6(b)