Brazil NCM · 8-digit subitem

NCM 3908.90.20 – Dimer/trimer fatty acid-ethyleneamine polyamides

NCM 3908.90.20 (also written 39089020) is Brazil's code for dimer/trimer fatty acid-ethyleneamine polyamides. Its first 6 digits are HS code 3908.90.

Official description of NCM 3908.90.20

PortuguêsOfficial
Obtidas por condensação de ácidos graxos (gordos) dimerizados ou trimerizados com etilenaminas
EnglishUnofficial translation

Obtained by condensation of dimerised or trimerised fatty acids with ethyleneamines

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

How to read NCM 3908.90.20

39Chapter 08Heading 90Subheading

HS code 3908.90
Same in every country

2Item 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 39 Plastics and articles thereof Plástico e suas obras.
  2. Heading 39.08 Polyamides in primary forms Poliamidas em formas primárias.
  3. Subheading 3908.90 Polyamides; n.e.c. in heading no. 3908, in primary forms Outras
  4. Subitem 3908.90.20 Obtained by condensation of dimerised or trimerised fatty acids with ethyleneamines Obtidas por condensação de ácidos graxos (gordos) dimerizados ou trimerizados com etilenaminas

Other NCM codes under HS 3908.90

3908.90.10 Lauryl lactam copolymerCopolímero de lauril-lactama 3908.90.90 Other polyamides in primary formsOutras

Questions about NCM 3908.90.20

What is NCM 3908.90.20?

NCM 3908.90.20 (39089020) is the Brazilian (Mercosur) code for dimer/trimer fatty acid-ethyleneamine polyamides. Its official Portuguese description is “Obtidas por condensação de ácidos graxos (gordos) dimerizados ou trimerizados com etilenaminas”.

What is the HS code for NCM 3908.90.20?

HS 3908.90 (Polyamides; n.e.c. in heading no. 3908, in primary forms). 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 3908.90.20?

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.