Poly(1,3-phenylene methylphosphonate) Resin Pellets from Canada
Poly(1,3-phenylene methylphosphonate), a phosphorus-containing polymer, is supplied in primary form as translucent pellets for processing into flame-retardant plastics. It falls under HTS 3911.20.00.00 as a specifically named polymer in primary forms (pellets) not elsewhere classified in Chapter 39. This material meets the subheading note requiring the named monomer units to contribute 95% or more by weight.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Verify monomer composition documentation showing 95%+ phosphonate content per subheading note (a)(1) to avoid reclassification; obtain supplier certificates confirming it's unmodified primary form; declare as non-hazardous but note phosphorus content for REACH/ TSCA compliance