Magnesium Aluminate Spinel from Mexico
Synthetic magnesium aluminate spinel (MgAl2O4) powder or granules for transparent ceramics in armor and windows. Classified as aluminates under HTS 2841.90.40.00, as inorganic salts meeting Chapter 28 criteria before sintering. Purity 99.9%, particle size <1 micron.
Duty Rate — Mexico → United States
13.1%
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
• XRD pattern confirming spinel phase; ITAR check for armor apps
• Pitfall: sintered forms to 6903
• Moisture-proof packaging critical