Bis(polyoxyethylene) methylphosphonate (BPEMP) from Japan
Bis(polyoxyethylene) methylphosphonate is a specific polyether compound classified under HTS 3907.21.00.00 due to its chemical structure as a phosphonate ester of polyoxyethylene chains. It is primarily used as a flame retardant additive in plastics, textiles, and coatings. This primary form polymer meets the subheading note requiring the named structure to predominate by weight.
Duty Rate — Japan → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Verify chemical composition via certificate of analysis to confirm 95%+ purity of the bis(polyoxyethylene) methylphosphonate structure per subheading notes
• Include Safety Data Sheets (SDS) and REACH compliance docs for flame retardant chemicals to avoid CBP holds
• Avoid misclassification as general polyethers (3907.20); specify exact nomenclature in entry docs