Diethyl Phosphite Flame Retardant Intermediate from Canada
Diethyl phosphite used to synthesize phosphorus-based flame retardants for textiles and plastics. Classified HTS 2920.22.00.00 as phosphite ester essential for organophosphorus polymer additives.
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
• Include REACH Annex XVII flame retardant documentation if EU origin
• Verify P-content analysis (23-24%); variance indicates mixture classification
• Large volume imports (>20MT) require EPA pre-manufacture notification