Brazil NCM · 8-digit subitem

NCM 2816.10.10 – Magnesium hydroxide

NCM 2816.10.10 (also written 28161010) is Brazil's code for magnesium hydroxide. Its first 6 digits are HS code 2816.10.

Official description of NCM 2816.10.10

PortuguêsOfficial
Hidróxido
EnglishUnofficial translation

Hydroxide

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

How to read NCM 2816.10.10

28Chapter 16Heading 10Subheading

HS code 2816.10
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 28.16 Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides of strontium or barium Hidróxido e peróxido de magnésio; óxidos, hidróxidos e peróxidos, de estrôncio ou de bário.
  3. Subheading 2816.10 Hydroxide and peroxide of magnesium Hidróxido e peróxido de magnésio
  4. Subitem 2816.10.10 Hydroxide Hidróxido

Other NCM codes under HS 2816.10

2816.10.20 Magnesium peroxidePeróxido

Questions about NCM 2816.10.10

What is NCM 2816.10.10?

NCM 2816.10.10 (28161010) is the Brazilian (Mercosur) code for magnesium hydroxide. Its official Portuguese description is “Hidróxido”.

What is the HS code for NCM 2816.10.10?

HS 2816.10 (Hydroxide and peroxide of magnesium). 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 2816.10.10?

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.