Refined Borax Granules for Glass Production from Mexico
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 — Mexico → United States
10.1%
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
• 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)