Brazil NCM · 8-digit code

NCM 2508.10.00 – Bentonite

NCM 2508.10.00 (also written 25081000) is Brazil's code for bentonite. Its first 6 digits are HS code 2508.10.

Official description of NCM 2508.10.00

PortuguêsOfficial
Bentonita
EnglishUnofficial translation

Clays (excluding expanded clays of heading no. 6806); bentonite, whether or not calcined

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

How to read NCM 2508.10.00

25Chapter 08Heading 10Subheading

HS code 2508.10
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 25 Salt; sulphur; earths, stone; plastering materials, lime and cement Sal; enxofre; terras e pedras; gesso, cal e cimento.
  2. Heading 25.08 Clays; (not including expanded clays of heading no. 6806), andalusite kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earth Outras argilas (exceto argilas expandidas da posição 68.06), andaluzita, cianita, silimanita, mesmo calcinadas; mulita; barro cozido em pó (terra de chamotte) e terra de dinas.
  3. Subheading 2508.10 Clays (excluding expanded clays of heading no. 6806); bentonite, whether or not calcined
  4. Subitem 2508.10.00 Clays (excluding expanded clays of heading no. 6806); bentonite, whether or not calcined Bentonita

Questions about NCM 2508.10.00

What is NCM 2508.10.00?

NCM 2508.10.00 (25081000) is the Brazilian (Mercosur) code for bentonite. Its official Portuguese description is “Bentonita”.

What is the HS code for NCM 2508.10.00?

HS 2508.10 (Clays (excluding expanded clays of heading no. 6806); bentonite, whether or not calcined). 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 2508.10.00?

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.