Polymethylpentene (PMP) Pellets from Mexico
Polymethylpentene, a high-clarity polyolefin from 4-methyl-1-pentene monomer, is imported in pellet form under HTS 3902.90.00 as other olefin polymers in primary forms. The monomer contributes over 95% by weight per chapter notes. Ideal for labware, medical devices, and microwave components due to heat resistance.
Duty Rate — Mexico → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Provide FTIR spectroscopy reports confirming monomer purity for audits; label as 'primary form' to avoid parts classification
• Watch for contamination in pellets that could trigger food contact rejections
• Certify USP Class VI compliance for medical imports