Technical Dimethyl Phosphite for Flame Retardants from Mexico
Technical grade dimethyl phosphite designed for flame retardant production is classified as a pure phosphite ester in HTS 2920.21.00.00 per chapter note (a). It reacts to form phosphorus-containing polymers.
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
• Comply with REACH-like TSCA inventory rules; ensure <50 ppm chloride impurities; bulk import in isotanks reduces per-unit duties