General Purpose Polystyrene Pellets (GPPS) from Mexico
General Purpose Polystyrene (GPPS) is a homopolymer of styrene in transparent pellet form, classified under HTS 3903.19.00.00 as 'other' polystyrene not specified elsewhere. Used primarily for packaging, disposable cups, and clear plastic cases due to its clarity and rigidity.
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
• Request detailed technical data sheets confirming homopolymer status to meet 95% styrene monomer requirement
• Label shipments clearly as 'primary forms' to prevent confusion with finished articles in 3923
• Avoid bulk packaging without ventilation specs, as styrene can off-gas and trigger hazmat declarations