Harmonized Tariff Schedule of the U.S. › Chapter 40 Rubber and articles thereof
4002.39.00.00Tariff line
Classification path
Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip; mixtures of any product of heading 4001 with any product of this heading, in primary forms or in plates, sheets or strip
4002
Isobutene-isoprene (butyl) rubber (IIR); halo-isobutene-isoprene rubber (CIIR or BIIR)
Other
4002.39.00.00
Rates of duty
General rate (Column 1)Free
Special—
Column 220%
Unitkg
Printed page 1731
Measure flags
for origin CN, entry date 2026-10-25 · base rate Free
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 4002.39.00 is on L3
Confirmed total 37.5% · max 37.5%Full duty breakdown →