Brazil NCM · 8-digit subitem

NCM 3912.39.10 – Hydroxylated methyl-, ethyl- and propylcellulose

NCM 3912.39.10 (also written 39123910) is Brazil's code for hydroxylated methyl-, ethyl- and propylcellulose. Its first 6 digits are HS code 3912.39.

Official description of NCM 3912.39.10

PortuguêsOfficial
Metil-, etil- e propilcelulose, hidroxiladas
EnglishUnofficial translation

Methyl-, ethyl- and propylcellulose, hydroxylated

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

How to read NCM 3912.39.10

39Chapter 12Heading 39Subheading

HS code 3912.39
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 39 Plastics and articles thereof Plástico e suas obras.
  2. Heading 39.12 Cellulose and its chemical derivatives, n.e.c. or included, in primary forms Celulose e seus derivados químicos, não especificados nem compreendidos noutras posições, em formas primárias.
  3. Group 3912.3 Cellulose ethers: Éteres de celulose:
  4. Subheading 3912.39 Cellulose ethers; (other than carboxymethylcellulose and its salts), in primary forms Outros
  5. Subitem 3912.39.10 Methyl-, ethyl- and propylcellulose, hydroxylated Metil-, etil- e propilcelulose, hidroxiladas

Other NCM codes under HS 3912.39

3912.39.20 Other methylcellulosesOutras metilceluloses 3912.39.30 Other ethylcellulosesOutras etilceluloses 3912.39.90 Other cellulose ethers in primary formsOutros

Questions about NCM 3912.39.10

What is NCM 3912.39.10?

NCM 3912.39.10 (39123910) is the Brazilian (Mercosur) code for hydroxylated methyl-, ethyl- and propylcellulose. Its official Portuguese description is “Metil-, etil- e propilcelulose, hidroxiladas”.

What is the HS code for NCM 3912.39.10?

HS 3912.39 (Cellulose ethers; (other than carboxymethylcellulose and its salts), 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 3912.39.10?

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.