HS 2901-23 – Butene (butylene) and isomers thereof
Tariff data as of T2026-2, effective Sept 1, 2026, last verified Oct 21, 2026
Acyclic hydrocarbons. – Butene (butylene) and isomers thereof.
10-digit tariff items
- 2901-23-00-10 – 1-Butene (MFN Free)
- 2901-23-00-20 – Isobutene (MFN Free)
- 2901-23-00-90 – Other (MFN Free)