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%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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