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2929.10.55.00/Prepolymeric MDI Isocyanate/Japan

Prepolymeric MDI Isocyanate from Japan

Prepolymeric MDI is a low-viscosity isocyanate prepolymer for flexible foam production, chemically defined under chapter scope. HTS 2929.10.55.00 applies due to its inclusion in additional U.S. note 3.

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

• Provide NCO content analysis for verification; store in nitrogen-blanketed tanks

• Pitfall: classifying as finished polymer if reaction incomplete