Brazil NCM · 8-digit code

NCM 3402.31.00 – Linear alkylbenzene sulphonic acids and salts

NCM 3402.31.00 (also written 34023100) is Brazil's code for linear alkylbenzene sulphonic acids and salts. Its first 6 digits are HS code 3402.31.

Official description of NCM 3402.31.00

PortuguêsOfficial
Ácidos sulfônicos de alquilbenzenos lineares e seus sais
EnglishUnofficial translation

Anionic organic surface-active agents (other than soap); linear alkylbenzene sulphonic acids and their salts, whether or not put up for retail sale

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

How to read NCM 3402.31.00

34Chapter 02Heading 31Subheading

HS code 3402.31
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 34 Soap, organic surface-active agents; washing, lubricating, polishing or scouring preparations; artificial or prepared waxes, candles and similar articles, modelling pastes, dental waxes and dental preparations with a basis of plaster Sabões, agentes orgânicos de superfície, preparações para lavagem, preparações lubrificantes, ceras artificiais, ceras preparadas, produtos de conservação e limpeza, velas e artigos semelhantes, massas ou pastas para modelar, "ceras para odontologia" e composições para odontologia à base de gesso.
  2. Heading 34.02 Organic surface-active agents (not soap); surface-active, washing (including auxiliary washing) and cleaning preparations, containing soap or not, excluding those of heading no. 3401 Agentes orgânicos de superfície (exceto sabões); preparações tensoativas, preparações para lavagem (incluindo as preparações auxiliares para lavagem) e preparações para limpeza, mesmo que contenham sabão, exceto as da posição 34.01.
  3. Group 3402.3 Anionic organic surface-active agents, whether or not put up for retail sale: Agentes orgânicos de superfície aniônicos, mesmo acondicionados para venda a retalho:
  4. Subheading 3402.31 Anionic organic surface-active agents (other than soap); linear alkylbenzene sulphonic acids and their salts, whether or not put up for retail sale
  5. Subitem 3402.31.00 Anionic organic surface-active agents (other than soap); linear alkylbenzene sulphonic acids and their salts, whether or not put up for retail sale Ácidos sulfônicos de alquilbenzenos lineares e seus sais

Questions about NCM 3402.31.00

What is NCM 3402.31.00?

NCM 3402.31.00 (34023100) is the Brazilian (Mercosur) code for linear alkylbenzene sulphonic acids and salts. Its official Portuguese description is “Ácidos sulfônicos de alquilbenzenos lineares e seus sais”.

What is the HS code for NCM 3402.31.00?

HS 3402.31 (Anionic organic surface-active agents (other than soap); linear alkylbenzene sulphonic acids and their salts, whether or not put up for retail sale). 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 3402.31.00?

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.