4-Methyl-1-Pentene Copolymer Pellets from Mexico
Pellets of 4-methyl-1-pentene copolymer where the named monomer predominates by weight, classified under HTS 3902.90.0050 as other olefin polymers not specifically named. Used in high-temperature films and containers. Follows subheading note (a)(4) for predominant monomer rule.
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
• Conduct weight-based comonomer analysis to prove predominance
• Declare exact copolymer ratios in entry summary
• Use sealed bags to maintain pellet form during transit