Harmonized Tariff Schedule of the U.S. › Chapter 29 Organic chemicals
2901.24.10.00Tariff line
Classification path
Acyclic hydrocarbons
2901
Unsaturated
Buta-1,3-diene and isoprene
Buta-1,3-diene
2901.24.10.00
Rates of duty
General rate (Column 1)Free
Special—
Column 2Free
Unitkg
Printed page 1425
Measure flags
for origin CN, entry date 2026-10-26 · 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 2901.24.10 is on L3
- PGAEPA EP7
Confirmed total 37.5% · max 37.5%Full duty breakdown →