Brazil NCM · 8-digit code

NCM 2920.21.00 – Dimethyl phosphite

NCM 2920.21.00 (also written 29202100) is Brazil's code for dimethyl phosphite. Its first 6 digits are HS code 2920.21.

Official description of NCM 2920.21.00

PortuguêsOfficial
Fosfito de dimetila
EnglishUnofficial translation

Esters; phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives, dimethyl phosphite

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

How to read NCM 2920.21.00

29Chapter 20Heading 21Subheading

HS code 2920.21
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 29.20 Esters of other inorganic acids of non-metals (other than of hydrogen halides) and their salts, their halogenated, sulphonated, nitrated or nitrosated derivatives Ésteres dos outros ácidos inorgânicos de não metais (exceto os ésteres de halogenetos de hidrogênio) e seus sais; seus derivados halogenados, sulfonados, nitrados ou nitrosados.
  3. Group 2920.2 Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Ésteres de fosfitos e seus sais; seus derivados halogenados, sulfonados, nitrados ou nitrosados:
  4. Subheading 2920.21 Esters; phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives, dimethyl phosphite
  5. Subitem 2920.21.00 Esters; phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives, dimethyl phosphite Fosfito de dimetila

Questions about NCM 2920.21.00

What is NCM 2920.21.00?

NCM 2920.21.00 (29202100) is the Brazilian (Mercosur) code for dimethyl phosphite. Its official Portuguese description is “Fosfito de dimetila”.

What is the HS code for NCM 2920.21.00?

HS 2920.21 (Esters; phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives, dimethyl phosphite). 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 2920.21.00?

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.