Brazil NCM · 4-digit heading
NCM 28.18 – Artificial corundum, aluminium oxide and hydroxide
About NCM heading 28.18
Aluminium oxide (including artificial corundum); aluminium hydroxide
Heading 28.18 of Brazil's NCM has 5 eight-digit codes. Official Portuguese description: Corindo artificial, de constituição química definida ou não; óxido de alumínio; hidróxido de alumínio.
The first four digits, 2818, identify this heading within chapter 28. Its six-digit subheadings follow the international HS system; the final two digits distinguish Mercosur's NCM classifications. Select a code below to read its English translation, official Portuguese text and full classification path.
For product coverage and classification context, read the HS heading 28.18 guide.
NCM codes in heading 28.18 5
- 2818.10 Aluminium oxide; artificial corundumCorindo artificial, de constituição química definida ou não HS code
- 2818.10.10 White corundum, over 90% passing a 63 µm sieveBranco, que passe através de uma peneira com abertura de malha de 63 micrômetros (mícrons) em proporção superior a 90 %, em peso
- 2818.10.90 Other artificial corundumOutros
- 2818.20 Aluminium oxide; other than artificial corundumÓxido de alumínio, exceto o corindo artificial HS code
- 2818.20.10 Calcined aluminaAlumina calcinada
- 2818.20.90 Other aluminium oxideOutros
- 2818.30.00 Aluminium hydroxideHidróxido de alumínio
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.