Anhydrous Refrax Borax from Canada
"Refrax" brand anhydrous disodium tetraborate for fiberglass production. Classified under HTS 2840.11.00.00 as it is the anhydrous form of refined borax, a pure inorganic borate compound. Used where hydration would interfere with processes.
Duty Rate — Canada → United States
10.3%
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
• Provide brand-specific technical data sheets confirming anhydrous specs
• Avoid storage with moisture to prevent conversion to hydrate form pre-inspection
• File for binding ruling if purity borderline to prevent reclassification