Polymeric MDI (PMDI) Resin from Japan
PMDI is a crude poly(methylene phenyl isocyanate) oligomer mixture used in rigid foam manufacturing, meeting the 95% monomer unit threshold per subheading rules. Classified under HTS 3909.31.00.00 as a primary form amino-resin precursor for polyurethane systems. Typically shipped in ISO tanks for large-scale industrial use.
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
• Obtain manufacturer's certificate confirming crude/polymeric status and monomer composition to avoid reclassification
• Comply with TSCA import requirements for new chemicals
• Watch for drum residue contamination leading to waste classification issues