Brazil NCM · 8-digit code

NCM 7903.10.00 – Zinc dust

NCM 7903.10.00 (also written 79031000) is Brazil's code for zinc dust. Its first 6 digits are HS code 7903.10.

Official description of NCM 7903.10.00

PortuguêsOfficial
Poeiras de zinco
EnglishUnofficial translation

Zinc dust

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

How to read NCM 7903.10.00

79Chapter 03Heading 10Subheading

HS code 7903.10
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 79 Zinc and articles thereof Zinco e suas obras.
  2. Heading 79.03 Zinc; dust, powders and flakes Poeiras, pós e escamas, de zinco.
  3. Subheading 7903.10 Zinc dust
  4. Subitem 7903.10.00 Zinc dust Poeiras de zinco

Questions about NCM 7903.10.00

What is NCM 7903.10.00?

NCM 7903.10.00 (79031000) is the Brazilian (Mercosur) code for zinc dust. Its official Portuguese description is “Poeiras de zinco”.

What is the HS code for NCM 7903.10.00?

HS 7903.10 (Zinc dust). 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 7903.10.00?

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.