Brazil NCM · 8-digit code

NCM 3921.11.00 – Cellular styrene polymer plates and sheets

NCM 3921.11.00 (also written 39211100) is Brazil's code for cellular styrene polymer plates and sheets. Its first 6 digits are HS code 3921.11.

Official description of NCM 3921.11.00

PortuguêsOfficial
De polímeros de estireno
EnglishUnofficial translation

Plastics; plates, sheets, film, foil and strip, of polymers of styrene, cellular

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

How to read NCM 3921.11.00

39Chapter 21Heading 11Subheading

HS code 3921.11
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 39 Plastics and articles thereof Plástico e suas obras.
  2. Heading 39.21 Plastic plates, sheets, film, foil and strip n.e.c. in chapter 39 Outras chapas, folhas, películas, tiras e lâminas, de plástico.
  3. Group 3921.1 Cellular: Produtos alveolares:
  4. Subheading 3921.11 Plastics; plates, sheets, film, foil and strip, of polymers of styrene, cellular
  5. Subitem 3921.11.00 Plastics; plates, sheets, film, foil and strip, of polymers of styrene, cellular De polímeros de estireno

Questions about NCM 3921.11.00

What is NCM 3921.11.00?

NCM 3921.11.00 (39211100) is the Brazilian (Mercosur) code for cellular styrene polymer plates and sheets. Its official Portuguese description is “De polímeros de estireno”.

What is the HS code for NCM 3921.11.00?

HS 3921.11 (Plastics; plates, sheets, film, foil and strip, of polymers of styrene, cellular). 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 3921.11.00?

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.