Butyl Rubber for Pharmaceutical Stoppers from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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