Brazil NCM · 8-digit subitem

NCM 2810.00.10 – Orthoboric acid

NCM 2810.00.10 (also written 28100010) is Brazil's code for orthoboric acid. Its first 6 digits are HS code 2810.00.

Official description of NCM 2810.00.10

PortuguêsOfficial
Ácido ortobórico
EnglishUnofficial translation

Orthoboric acid

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

How to read NCM 2810.00.10

28Chapter 10Heading 00Subheading

HS code 2810.00
Same in every country

1Item 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. Digits 7 and 8 are Brazil's own split of that HS code. 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 28.10 Oxides of boron; boric acids Óxidos de boro; ácidos bóricos.
  3. Subheading 2810.00 Oxides of boron; boric acids Óxidos de boro; ácidos bóricos.
  4. Subitem 2810.00.10 Orthoboric acid Ácido ortobórico

Other NCM codes under HS 2810.00

2810.00.90 Boron oxides and other boric acidsOutros

Questions about NCM 2810.00.10

What is NCM 2810.00.10?

NCM 2810.00.10 (28100010) is the Brazilian (Mercosur) code for orthoboric acid. Its official Portuguese description is “Ácido ortobórico”.

What is the HS code for NCM 2810.00.10?

HS 2810.00 (Oxides of boron; boric acids). 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 2810.00.10?

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.