Antimony Trioxide from Mexico
Antimony trioxide (Sb₂O₃) serves as a flame retardant in plastics and a catalyst in PET production. Classified as an other inorganic oxygen compound of nonmetal antimony under HTS 2811.29.5000. Fine white powder form.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Particle size distribution certificate critical for polymer applications
• EU REACH authorization may apply; provide SVHC declarations
• Confirm <90% purity threshold to avoid 2825 classification