Butyl Rubber for Pharmaceutical Stoppers from Mexico
Pure IIR butyl rubber bales optimized for vial stoppers in pharma packaging. Classified 4002.31.00.00 as primary form synthetic rubber, essential for gas impermeability in medical uses.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include USP Class VI certification for pharma end-use
• Ensure no animal-derived processing aids to avoid biotech regs
• Low extractables testing docs prevent health/safety holds