Brazil NCM · 8-digit subitem

NCM 2833.25.10 – Cuprous sulphate

NCM 2833.25.10 (also written 28332510) is Brazil's code for cuprous sulphate. Its first 6 digits are HS code 2833.25.

Official description of NCM 2833.25.10

PortuguêsOfficial
Cuproso
EnglishUnofficial translation

Cuprous

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

How to read NCM 2833.25.10

28Chapter 33Heading 25Subheading

HS code 2833.25
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 28.33 Sulphates; alums; peroxosulphates (persulphates) Sulfatos; alumes; peroxossulfatos (persulfatos).
  3. Group 2833.2 Other sulphates: Outros sulfatos:
  4. Subheading 2833.25 Sulphates; of copper De cobre
  5. Subitem 2833.25.10 Cuprous Cuproso

Other NCM codes under HS 2833.25

2833.25.20 Cupric sulphateCúprico

Questions about NCM 2833.25.10

What is NCM 2833.25.10?

NCM 2833.25.10 (28332510) is the Brazilian (Mercosur) code for cuprous sulphate. Its official Portuguese description is “Cuproso”.

What is the HS code for NCM 2833.25.10?

HS 2833.25 (Sulphates; of copper). 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 2833.25.10?

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.