Brazil NCM · 4-digit heading
NCM 28.50 – Hydrides, nitrides, azides, silicides and borides
About NCM heading 28.50
Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading no. 2849
Heading 28.50 of Brazil's NCM has 3 eight-digit codes. Official Portuguese description: Hidretos, nitretos, azidas, silicietos e boretos, de constituição química definida ou não, exceto os compostos que constituam igualmente carbonetos da posição 28.49.
The first four digits, 2850, 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 28.50 guide.
NCM codes in heading 28.50 3
- 2850.00 Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading no. 2849Hidretos, nitretos, azidas, silicietos e boretos, de constituição química definida ou não, exceto os compostos que constituam igualmente carbonetos da posição 28.49. HS code
- 2850.00.10 Boron nitrideNitreto de boro
- 2850.00.20 Calcium silicideSilicieto de cálcio
- 2850.00.90 Other hydrides, nitrides, azides and similarOutros
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.