HS 2901.23: Acyclic hydrocarbons; unsaturated, butene (butylene) and isomers thereof
Brazil import duty rates — Updated May 2026
HS 2901.23 covers acyclic hydrocarbons; unsaturated, butene (butylene) and isomers thereof under Brazil's NCM classification. This heading maps to 1 Brazilian NCM code with import duty (II) of 0%. Under the EU-Mercosur agreement, EU-origin products in this category benefit from progressive tariff reduction. In 2024, Brazil imported $1.4M worth of these products, with USA as the leading supplier.
Regulatory agencies
Products under this heading may require pre-approval before customs clearance. Learn more
EU-Mercosur impact
Gradual tariff elimination over 7-10 years. Pharmaceutical intermediates benefit significantly.
Brazil imports — 2024
Source: UN ComtradeTop exporters to Brazil
CIF values in USD. Percentage = share of Brazil's total imports for this HS heading.
NCM codes under HS 2901.23
| NCM Code | Description (PT — official) | II | IPI | Ex-Tarif. | |
|---|---|---|---|---|---|
| 2901.23.00 | -- Buteno (butileno) e seus isômeros | 0% | 0% | — | Calculate → |
How to import acyclic hydrocarbons; unsaturated, butene (butylene) and isomers thereof into Brazil
- Confirm the NCM code — the table above shows 1 NCM code under HS 2901.23. Your Brazilian customs broker will determine the exact 8-digit NCM.
- Check the import duty — rates for this heading are 0%. This is the base rate before other taxes.
- Calculate the full landed cost — Brazil charges 7 cascading taxes on imports: II, IPI, PIS, COFINS, ICMS, AFRMM, and Siscomex fee.
- Verify regulatory requirements — check if ANVISA, INMETRO, MAPA, or other agencies require pre-clearance for your product.
Brazil Import Taxes Explained
Complete guide to the 7 cascading taxes on every import.
How to Export to Brazil
Step-by-step guide for foreign companies.
Calculate your landed cost
Enter CIF value and get a breakdown of all 7 Brazilian import taxes for HS 2901.23.