6-digit WCO subheading · globally harmonized
400231Isobutene-isoprene (butyl) rubber (IIR)
Global tariff comparison
Primary import duty for HS-6 400231 across 12 major trading jurisdictions
United States tariff lines
1 national codes
| HS Code | Description | Primary rate |
|---|---|---|
| 4002.31.00.00 | Isobutene-isoprene (butyl) rubber (IIR) | Free |