Polyphenylene Ether Resin from Japan
Polyphenylene ether (PPE) resin is a high-performance engineering thermoplastic in primary pellet form, classified under HTS 3907.29.00.00 as 'other polyethers' because it consists of repeating ether linkages from its monomer units exceeding 95% by weight. It is used in automotive parts and electronics for its heat resistance.
Duty Rate — Japan → 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 polymer composition via certificate of analysis to confirm >95% ether monomer content for 3907 classification
• Ensure primary form (pellets/granules) documentation; finished articles shift to Chapter 39 headings like 3920
• Avoid misclassification as polyester by checking ether vs ester linkages in technical data sheets