Brazil NCM · 8-digit subitem

NCM 6903.10.12 – Graphite and silicon carbide crucibles

NCM 6903.10.12 (also written 69031012) is Brazil's code for graphite and silicon carbide crucibles. Its first 6 digits are HS code 6903.10.

Official description of NCM 6903.10.12

PortuguêsOfficial
Elaborados com uma mistura de grafita e carboneto de silício
EnglishUnofficial translation

Made from a mixture of graphite and silicon carbide

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

How to read NCM 6903.10.12

69Chapter 03Heading 10Subheading

HS code 6903.10
Same in every country

1Item 2Subitem

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 69 Ceramic products Produtos cerâmicos.
  2. Heading 69.03 Ceramic goods; (e.g. retorts, crucibles, muffles, nozzles, plugs, supports cupels, tubes, pipes, sheaths, rods and slide gates) excluding those of siliceous fossil meals or of similar siliceous earths Outros produtos cerâmicos refratários (por exemplo, retortas, cadinhos, muflas, bocais, tampões, suportes, copelas, tubos, mangas, varetas, "portas" deslizantes (slide gates)) que não sejam de farinhas siliciosas fósseis nem de terras siliciosas semelhantes.
  3. Subheading 6903.10 Refractory ceramic goods; containing, by weight, more than 50% of free carbon, excluding those of siliceous fossil meals or similar earths Que contenham, em peso, mais de 50 % de carbono livre
  4. Item 6903.10.1 Crucibles Cadinhos
  5. Subitem 6903.10.12 Made from a mixture of graphite and silicon carbide Elaborados com uma mistura de grafita e carboneto de silício

Other NCM codes under HS 6903.10

6903.10.11 Graphite crucibles, not with silicon carbideDe grafita, exceto os do subitem 6903.10.12 6903.10.19 Other crucibles over 50% free carbonOutros 6903.10.20 Graphite and silicon carbide retortsRetortas elaboradas com uma mistura de grafita e carboneto de silício 6903.10.30 Refractory lids and plugs, over 50% free carbonTampas e tampões 6903.10.40 Refractory tubes over 50% free carbonTubos 6903.10.90 Other refractories over 50% free carbonOutros

Questions about NCM 6903.10.12

What is NCM 6903.10.12?

NCM 6903.10.12 (69031012) is the Brazilian (Mercosur) code for graphite and silicon carbide crucibles. Its official Portuguese description is “Elaborados com uma mistura de grafita e carboneto de silício”.

What is the HS code for NCM 6903.10.12?

HS 6903.10 (Refractory ceramic goods; containing, by weight, more than 50% of free carbon, excluding those of siliceous fossil meals or similar earths). 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 6903.10.12?

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.