Crystal Polystyrene Resin from Mexico
Crystal Polystyrene, a clear GPPS variant, is imported as resin pellets under HTS 3903.19.00.00 for applications requiring optical clarity like CD cases and medical labware. Meets 'other' polystyrene criteria with over 95% styrene monomer units.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include refractive index specs (typically 1.59) to prove high purity homopolymer
• Ensure pallets are marked with UN numbers if styrene monomer residue exceeds limits