IIR Butyl Rubber Silica Bale from Japan
Isobutylene-isoprene rubber (IIR, butyl) bales compounded with silica for inner tube production, unvulcanized primary bales. HTS 4005.10.00.00 covers this as compounded with silica in bulk form.
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
• Bales require airtight packaging certificates to prevent premature oxidation
• Differentiate from oil-extended butyl, which may have different rules
• Audit risk high if not clearly labeled vs. natural rubber bales