Magnesium Fluoride Powder from Mexico
Magnesium fluoride (MgF2) powder coats optical lenses for anti-reflective properties and acts as a flux. Classified as other fluoride under HTS 2826.19.90.00.
Duty Rate — Mexico → United States
13.9%
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
• Specify coating-grade purity (>99%) to justify chemical classification
• Avoid bundling with lenses, which shifts to 9001 as finished optics
• Handle as irritant; provide exposure limits in SDS