</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
3907.91.50.00/High-Reactivity Unsaturated Polyester Resin/Japan

High-Reactivity Unsaturated Polyester Resin from Japan

Fast-cure unsaturated polyester resin for production line spray and hand lay-up of truck caps and enclosures. Classified HTS 3907.91.5000 as other unsaturated polyester primary form, per predominant comonomer weight rule. Promoted for 5-7 min gel time.

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%
Calculate with your customs valueVerify classification with AI

Import Tips

• Test promotion levels post-import; separate from peroxides; comply with TSCA for new formulations

High-Reactivity Unsaturated Polyester Resin from Japan — Import Duty Rate | HTS 3907.91.50.00