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2929.10.55.00/Polymeric Methylene Diphenyl Diisocyanate (PMDI)/Japan

Polymeric Methylene Diphenyl Diisocyanate (PMDI) from Japan

PMDI is a mixture of MDI oligomers, a chemically defined isocyanate for rigid polyurethane foams in insulation. Classified under HTS 2929.10.55.00 per additional U.S. note 3 to section VI for specific isocyanates.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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Import Tips

• Confirm polymeric composition via assay certificates; use DOT-approved drums to avoid spills

• Pitfall: confusing with monomeric MDI leading to wrong subheading