Brazil NCM · 8-digit subitem

NCM 2901.24.10 – Buta-1,3-diene

NCM 2901.24.10 (also written 29012410) is Brazil's code for buta-1,3-diene. Its first 6 digits are HS code 2901.24.

Official description of NCM 2901.24.10

PortuguêsOfficial
Buta-1,3-dieno
EnglishUnofficial translation

Buta-1,3-diene

Nomenclatura Comum do Mercosul (Siscomex). Updated Oct 2026 · In force since Apr 2022 (Res Gecex 272/2021).

How to read NCM 2901.24.10

29Chapter 01Heading 24Subheading

HS code 2901.24
Same in every country

1Item 0Subitem

Added by Mercosur
Brazil, Argentina, Paraguay, Uruguay

The first 6 digits are the international HS code, so their meaning is the same in every country; Brazil publishes the text in Portuguese. Digits 7 and 8 are Brazil's own split of that HS code. The full 8-digit code is used on import declarations (DUIMP), invoices (NF-e) and tax filings.

Full classification path

  1. Chapter 29 Organic chemicals Produtos químicos orgânicos.
  2. Heading 29.01 Acyclic hydrocarbons Hidrocarbonetos acíclicos.
  3. Group 2901.2 Unsaturated: Não saturados:
  4. Subheading 2901.24 Acyclic hydrocarbons; unsaturated, buta-1,3-diene and isoprene Buta-1,3-dieno e isopreno
  5. Subitem 2901.24.10 Buta-1,3-diene Buta-1,3-dieno

Other NCM codes under HS 2901.24

2901.24.20 IsopreneIsopreno

Questions about NCM 2901.24.10

What is NCM 2901.24.10?

NCM 2901.24.10 (29012410) is the Brazilian (Mercosur) code for buta-1,3-diene. Its official Portuguese description is “Buta-1,3-dieno”.

What is the HS code for NCM 2901.24.10?

HS 2901.24 (Acyclic hydrocarbons; unsaturated, buta-1,3-diene and isoprene). The first 6 digits of an NCM code are its international HS code; the last 2 digits are Brazil's own split.

Is an NCM code the same as an HS code?

The first 6 digits are the same in every country. NCM adds an item digit (7th) and a subitem digit (8th). A code ending in 00 means Brazil does not split that HS code further.

Which countries use NCM 2901.24.10?

All Mercosur members use the same NCM codes: Argentina, Brazil, Paraguay and Uruguay.

Source: Siscomex Classif NCM table, updated Oct 2026 (Resolução Gecex nº 926/2026). The Portuguese text is the official one; the English is our translation.