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2929.10.55.00/Hexamethylene Diisocyanate (HDI)/Japan

Hexamethylene Diisocyanate (HDI) from Japan

HDI is an aliphatic diisocyanate for lightfast polyurethane coatings, chemically defined under chapter scope. Classified in HTS 2929.10.55.00 due to 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

• Sensitizer warnings mandatory; biuret-trimer forms need separate checks

• Pitfall: confusing with cyclic forms in heading exclusions

Hexamethylene Diisocyanate (HDI) from Japan — Import Duty Rate | HTS 2929.10.55.00