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3903.90.50.00/High Impact Polystyrene HIPS 825/Mexico

High Impact Polystyrene HIPS 825 from Mexico

HIPS 825 is a polystyrene resin with rubber modifiers for enhanced toughness, where styrene units exceed 95% by weight of total polymer content. Classified in HTS 3903.90.5000 as 'Other' styrene polymers in primary forms (pellets). Meets subheading note (a)(1) as it is not a specifically named copolymer.

Duty Rate — Mexico → United States

16.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Submit lab analysis confirming rubber content does not drop styrene below 95% to stay in 3903.90 per note (a)(1)

• Label shipments clearly as 'primary forms' to distinguish from fabricated plates/sheets under 3920.51