Expandable Polystyrene EPS Beads F400 from Mexico
EPS F400 consists of polystyrene beads impregnated with pentane blowing agent, with styrene monomer >95% by weight in primary bead form. It is classified under HTS 3903.90.5000 as 'Other' polymers of styrene in primary forms. Subheading note (a)(1) applies as it is not chemically modified or a named copolymer.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include blowing agent specs in documentation to confirm primary form status under Chapter 39
• Verify no 'household article' features to avoid 3924; EPS beads are industrial raw material