Brazil NCM · 8-digit code

NCM 3913.10.00 – Alginic acid, its salts and esters

NCM 3913.10.00 (also written 39131000) is Brazil's code for alginic acid, its salts and esters. Its first 6 digits are HS code 3913.10.

Official description of NCM 3913.10.00

PortuguêsOfficial
Ácido algínico, seus sais e seus ésteres
EnglishUnofficial translation

Polymers, natural; alginic acid, its salts and esters, in primary forms

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

How to read NCM 3913.10.00

39Chapter 13Heading 10Subheading

HS code 3913.10
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 39.13 Natural polymers (e.g. alginic acid) and modified natural polymers (e.g. hardened proteins, chemical derivatives of natural rubber), n.e.c. or included, in primary forms Polímeros naturais (ácido algínico, por exemplo) e polímeros naturais modificados (por exemplo, proteínas endurecidas, derivados químicos da borracha natural), não especificados nem compreendidos noutras posições, em formas primárias.
  3. Subheading 3913.10 Polymers, natural; alginic acid, its salts and esters, in primary forms
  4. Subitem 3913.10.00 Polymers, natural; alginic acid, its salts and esters, in primary forms Ácido algínico, seus sais e seus ésteres

Questions about NCM 3913.10.00

What is NCM 3913.10.00?

NCM 3913.10.00 (39131000) is the Brazilian (Mercosur) code for alginic acid, its salts and esters. Its official Portuguese description is “Ácido algínico, seus sais e seus ésteres”.

What is the HS code for NCM 3913.10.00?

HS 3913.10 (Polymers, natural; alginic acid, its salts and esters, 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 3913.10.00?

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.