Brazil NCM · 8-digit code

NCM 2836.91.00 – Lithium carbonates

NCM 2836.91.00 (also written 28369100) is Brazil's code for lithium carbonates. Its first 6 digits are HS code 2836.91.

Official description of NCM 2836.91.00

PortuguêsOfficial
Carbonatos de lítio
EnglishUnofficial translation

Carbonates; lithium carbonate

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

How to read NCM 2836.91.00

28Chapter 36Heading 91Subheading

HS code 2836.91
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 28.36 Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate Carbonatos; peroxocarbonatos (percarbonatos); carbonato de amônio comercial que contenha carbamato de amônio.
  3. Group 2836.9 Other: Outros:
  4. Subheading 2836.91 Carbonates; lithium carbonate
  5. Subitem 2836.91.00 Carbonates; lithium carbonate Carbonatos de lítio

Questions about NCM 2836.91.00

What is NCM 2836.91.00?

NCM 2836.91.00 (28369100) is the Brazilian (Mercosur) code for lithium carbonates. Its official Portuguese description is “Carbonatos de lítio”.

What is the HS code for NCM 2836.91.00?

HS 2836.91 (Carbonates; lithium carbonate). 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 2836.91.00?

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.