Brazil NCM · 8-digit code

NCM 2931.44.00 – Methylphosphonic acid

NCM 2931.44.00 (also written 29314400) is Brazil's code for methylphosphonic acid. Its first 6 digits are HS code 2931.44.

Official description of NCM 2931.44.00

PortuguêsOfficial
Ácido metilfosfônico
EnglishUnofficial translation

Non-halogenated organo-phosphorous derivatives; methylphosphonic acid

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

How to read NCM 2931.44.00

29Chapter 31Heading 44Subheading

HS code 2931.44
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 29 Organic chemicals Produtos químicos orgânicos.
  2. Heading 29.31 Other organo-inorganic compounds Outros compostos organo-inorgânicos.
  3. Group 2931.4 Non-halogenated organo-phosphorous derivatives: Derivados organofosforados não halogenados:
  4. Subheading 2931.44 Non-halogenated organo-phosphorous derivatives; methylphosphonic acid
  5. Subitem 2931.44.00 Non-halogenated organo-phosphorous derivatives; methylphosphonic acid Ácido metilfosfônico

Questions about NCM 2931.44.00

What is NCM 2931.44.00?

NCM 2931.44.00 (29314400) is the Brazilian (Mercosur) code for methylphosphonic acid. Its official Portuguese description is “Ácido metilfosfônico”.

What is the HS code for NCM 2931.44.00?

HS 2931.44 (Non-halogenated organo-phosphorous derivatives; methylphosphonic acid). 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 2931.44.00?

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.