Brazil NCM · 8-digit subitem

NCM 3802.90.10 – Activated siliceous fossil meals

NCM 3802.90.10 (also written 38029010) is Brazil's code for activated siliceous fossil meals. Its first 6 digits are HS code 3802.90.

Official description of NCM 3802.90.10

PortuguêsOfficial
Farinhas siliciosas fósseis
EnglishUnofficial translation

Siliceous fossil meals

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

How to read NCM 3802.90.10

38Chapter 02Heading 90Subheading

HS code 3802.90
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 38 Chemical products n.e.c. Produtos diversos das indústrias químicas.
  2. Heading 38.02 Activated carbon; activated natural mineral products; animal black, including spent animal black Carvões ativados; matérias minerais naturais ativadas; negros de origem animal, incluindo o negro animal esgotado.
  3. Subheading 3802.90 Chemical products; activated natural mineral products, animal black, including spent animal black Outros
  4. Subitem 3802.90.10 Siliceous fossil meals Farinhas siliciosas fósseis

Other NCM codes under HS 3802.90

3802.90.20 Activated bentoniteBentonita 3802.90.30 Activated attapulgiteAtapulgita 3802.90.40 Other activated clays and earthsOutras argilas e terras 3802.90.50 Activated bauxiteBauxita 3802.90.90 Other activated minerals; animal blackOutros

Questions about NCM 3802.90.10

What is NCM 3802.90.10?

NCM 3802.90.10 (38029010) is the Brazilian (Mercosur) code for activated siliceous fossil meals. Its official Portuguese description is “Farinhas siliciosas fósseis”.

What is the HS code for NCM 3802.90.10?

HS 3802.90 (Chemical products; activated natural mineral products, animal black, including spent animal black). 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 3802.90.10?

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.