Brazil NCM · 8-digit code

NCM 2528.00.00 – Natural borates and boric acid up to 85% H3BO3

NCM 2528.00.00 (also written 25280000) is Brazil's code for natural borates and boric acid up to 85% H3BO3. Its first 6 digits are HS code 2528.00.

Official description of NCM 2528.00.00

PortuguêsOfficial
Boratos naturais e seus concentrados (calcinados ou não), exceto boratos extraídos de salmouras naturais; ácido bórico natural com um teor máximo de 85 % de H3BO3, em produto seco.
EnglishUnofficial translation

Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85 % of H3BO3 calculated on the dry weight

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

How to read NCM 2528.00.00

25Chapter 28Heading 00Subheading

HS code 2528.00
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 25 Salt; sulphur; earths, stone; plastering materials, lime and cement Sal; enxofre; terras e pedras; gesso, cal e cimento.
  2. Heading 25.28 Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85 % of H3BO3 calculated on the dry weight Boratos naturais e seus concentrados (calcinados ou não), exceto boratos extraídos de salmouras naturais; ácido bórico natural com um teor máximo de 85 % de H3BO3, em produto seco.
  3. Subheading 2528.00 Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85 % of H3BO3 calculated on the dry weight
  4. Subitem 2528.00.00 Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85 % of H3BO3 calculated on the dry weight Boratos naturais e seus concentrados (calcinados ou não), exceto boratos extraídos de salmouras naturais; ácido bórico natural com um teor máximo de 85 % de H3BO3, em produto seco.

Questions about NCM 2528.00.00

What is NCM 2528.00.00?

NCM 2528.00.00 (25280000) is the Brazilian (Mercosur) code for natural borates and boric acid up to 85% H3BO3. Its official Portuguese description is “Boratos naturais e seus concentrados (calcinados ou não), exceto boratos extraídos de salmouras naturais; ácido bórico natural com um teor máximo de 85 % de H₃BO₃, em produto seco.”.

What is the HS code for NCM 2528.00.00?

HS 2528.00 (Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85 % of H3BO3 calculated on the dry weight). 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 2528.00.00?

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.