Atactic Polystyrene Granules from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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