Polymeric MDI (PMDI) Resin from China
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 — China → United States
44%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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