3911.90.91.10/Liquid Polysulfone Concentrate/Japan

Liquid Polysulfone Concentrate from Japan

Low-viscosity thermoplastic polysulfone in concentrated solution primary form, but solid-adjusted for 3911.90.91.10 as other thermoplastic per notes. Used in specialty coatings.

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 value Verify classification with AI

Import Tips

• Specify <50% solvent to argue primary thermoplastic vs dispersion

• Stability data prevents reclass as 3917 tubes if hose-applied