</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Atactic Polystyrene Granules from Canada

Atactic Polystyrene is an amorphous, non-crystalline polystyrene variant in granule form, falling under HTS 3903.19.00.00 as other polystyrene in primary forms. It serves as a blend modifier for improving clarity and impact in other plastics.

Duty Rate — Canada → United States

16.5%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Provide FTIR or NMR analysis proving atactic structure and 95%+ styrene content

Declare exact melt flow index to assist CBP in verifying primary form status

Atactic Polystyrene Granules from Canada — Import Duty Rate | HTS 3903.19.00.00