Brazil NCM · 8-digit code

NCM 2840.11.00 – Anhydrous disodium tetraborate (refined borax)

NCM 2840.11.00 (also written 28401100) is Brazil's code for anhydrous disodium tetraborate (refined borax). Its first 6 digits are HS code 2840.11.

Official description of NCM 2840.11.00

PortuguêsOfficial
Anidro
EnglishUnofficial translation

Borates; disodium tetraborate (refined borax), anhydrous

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

How to read NCM 2840.11.00

28Chapter 40Heading 11Subheading

HS code 2840.11
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 28 Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes Produtos químicos inorgânicos; compostos inorgânicos ou orgânicos de metais preciosos, de elementos radioativos, de metais das terras raras ou de isótopos.
  2. Heading 28.40 Borates; peroxoborates (perborates) Boratos; peroxoboratos (perboratos).
  3. Group 2840.1 Disodium tetraborate (refined borax): Tetraborato dissódico (bórax refinado):
  4. Subheading 2840.11 Borates; disodium tetraborate (refined borax), anhydrous
  5. Subitem 2840.11.00 Borates; disodium tetraborate (refined borax), anhydrous Anidro

Questions about NCM 2840.11.00

What is NCM 2840.11.00?

NCM 2840.11.00 (28401100) is the Brazilian (Mercosur) code for anhydrous disodium tetraborate (refined borax). Its official Portuguese description is “Anidro”.

What is the HS code for NCM 2840.11.00?

HS 2840.11 (Borates; disodium tetraborate (refined borax), anhydrous). 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 2840.11.00?

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.