Technical Dimethyl Phosphite for Flame Retardants from Canada
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 — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Comply with REACH-like TSCA inventory rules; ensure <50 ppm chloride impurities; bulk import in isotanks reduces per-unit duties