Brazil NCM · 8-digit code

NCM 3909.31.00 – Poly(methylene phenyl isocyanate) (crude MDI)

NCM 3909.31.00 (also written 39093100) is Brazil's code for poly(methylene phenyl isocyanate) (crude MDI). Its first 6 digits are HS code 3909.31.

Official description of NCM 3909.31.00

PortuguêsOfficial
Poli(isocianato de fenil metileno) (MDI bruto, MDI polimérico)
EnglishUnofficial translation

Amino-resins; n.e.c. in heading no. 3909, in primary forms, poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI)

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

How to read NCM 3909.31.00

39Chapter 09Heading 31Subheading

HS code 3909.31
Same in every country

0Item 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. The last two digits are 00 because Brazil does not split this HS code further. 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 39.09 Amino-resins, phenolic resins and polyurethanes, in primary forms Resinas amínicas, resinas fenólicas e poliuretanos, em formas primárias.
  3. Group 3909.3 Other amino-resins: Outras resinas amínicas:
  4. Subheading 3909.31 Amino-resins; n.e.c. in heading no. 3909, in primary forms, poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI)
  5. Subitem 3909.31.00 Amino-resins; n.e.c. in heading no. 3909, in primary forms, poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI) Poli(isocianato de fenil metileno) (MDI bruto, MDI polimérico)

Questions about NCM 3909.31.00

What is NCM 3909.31.00?

NCM 3909.31.00 (39093100) is the Brazilian (Mercosur) code for poly(methylene phenyl isocyanate) (crude MDI). Its official Portuguese description is “Poli(isocianato de fenil metileno) (MDI bruto, MDI polimérico)”.

What is the HS code for NCM 3909.31.00?

HS 3909.31 (Amino-resins; n.e.c. in heading no. 3909, in primary forms, poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI)). 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 3909.31.00?

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.