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Styrofoam Beads EPS from Japan

Expandable polystyrene beads used for molding into foam products like packaging and insulation. These pre-expanded or unexpanded beads contain pentane as a blowing agent and fall under HTS 3903.11.00.00 as expandable polystyrene in primary form before molding or expansion into finished articles.

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

• Verify monomer content exceeds 95% styrene per subheading note (a)(1) to confirm classification as polystyrene

• Include technical data sheets proving expandability and primary form status to avoid reclassification as finished foam

• Check for hazardous material declarations due to pentane blowing agent content