Anhydrous Refrax Borax from China
"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 — China → United States
37.8%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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