CNAE 2341-9/00 · Brazil
Fabricação de produtos cerâmicos refratários
386 active companies in the Brazilian CNPJ registry have this CNAE as their main activity. Look up companies and explore their distribution by state and city.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
What this list shows
We count each active company in the Brazilian CNPJ registry once, by its head office and this CNAE as its main activity. Branches and secondary activities are excluded from this scope. The total describes the registry, not market revenue or company quality.
- Active companies
- 386
- 924th of 1,329 activities
- Opened in 12 months
- 11
- 1,040th by openings
- Of every 100 companies in the country
- 0.0
- do this activity
- Openings per 100 active
- 3
- in the country: 21
Active companies in this activity
More active establishments and higher registered capital first. This order is not a quality assessment or recommendation.- MAGNESITA REFRATARIOS S.AContagem (MG)
- INDUSTRIAS BRASILEIRAS DE ARTIGOS REFRATARIOS - IBAR - LTDAPoá (SP)
- VESUVIUS REFRATARIOS LTDARio de Janeiro (RJ)
- TOGNI S/A MATERIAIS REFRATARIOSPoços de Caldas (MG)
- RTT ENGINEERED SOLUTIONS LTDAAtibaia (SP)
- CERAMICA SAFFRAN LTDA EM RECUPERACAO JUDICIALBetim (MG)
- SHINAGAWA REFRATARIOS DO BRASIL LTDAVinhedo (SP)
- SUDAMIN BRASIL REFRATARIOS E MONTAGENS LTDA - EM RECUPERACAO JUDICIALBelo Horizonte (MG)
- RIBER-SID INDUSTRIA, COMERCIO E TRANSPORTE LTDARibeirão Preto (SP)
- WEERULIN DO BRASIL REFRATARIOS ESPECIAIS LTDA.Itaquaquecetuba (SP)
- REFRATARIOS MODELO LTDASão Paulo (SP)
- CERAMICA LIMARTI LTDACachoeiro de Itapemirim (ES)
How to assess a company's data
When you open a company's record, use these guides to check the data and understand what each field can establish.
- How to look up a CNPJ
Check identifiers, dates and registry fields against official sources.
- What an active CNPJ means
Active status does not show that a company is debt-free, licensed or able to operate.
- How to read partner and administrator records
Understand QSA roles and the limits on ownership and representation information.
Where the companies are
Weight in each federative unit: of every 100 active companies, how many have this main activity
- 0.0
- 0.0
- 0.0
- 0.0
- 0.0
Federative units with the most companies
- 1 São Paulo 98
- 2 Minas Gerais 51
- 3 Rio Grande do Sul 26
- 4 Santa Catarina 26
- 5 Goiás 23
- 6 Bahia 22
- 7 Maranhão 18
- 8 Mato Grosso 14
- 9 Paraná 14
- 10 Piauí 11
See the 25 federative units
- 11 Ceará 10
- 12 Tocantins 9
- 13 Pernambuco 7
- 14 Rio de Janeiro 7
- 15 Pará 6
- 16 Paraíba 6
- 17 Rio Grande do Norte 5
- 18 Roraima 5
- 19 Amazonas 4
- 20 Espírito Santo 4
- 21 Rondônia 4
- 22 Sergipe 3
- 23 Acre 2
- 24 Amapá 1
- 25 Mato Grosso do Sul 1
Cities with the most companies
active companies by head office
- 1 São Paulo (SP) 8
- 2 Leme (SP) 6
- 3 Guarantã do Norte (MT) 6
- 4 Boa Vista (RR) 5
- 5 Betim (MG) 5
- 6 Diadema (SP) 5
- 7 Pedreira (SP) 5
- 8 Barras (PI) 4
- 9 Jequié (BA) 4
- 10 Mogi Guaçu (SP) 4
See the 29 cities
- 11 Piracicaba (SP) 4
- 12 Rio Claro (SP) 4
- 13 São Carlos (SP) 4
- 14 Joinville (SC) 4
- 15 Campo Bom (RS) 4
- 16 Campestre de Goiás (GO) 4
- 17 Livramento de Nossa Senhora (BA) 3
- 18 Belo Horizonte (MG) 3
- 19 Caldas (MG) 3
- 20 Igaratinga (MG) 3
- 21 Taiobeiras (MG) 3
- 22 Rio de Janeiro (RJ) 3
- 23 Bragança Paulista (SP) 3
- 24 Poá (SP) 3
- 25 São Roque (SP) 3
- 26 Valinhos (SP) 3
- 27 Pantano Grande (RS) 3
- 28 Campo Largo (PR) 3
- 29 Imbituva (PR) 3
What activity 2341-9/00 is
- Section C — Indústrias de transformação
- Division — Fabricação de produtos de minerais não-metálicos
- Group — Fabricação de produtos cerâmicos
- Class — Fabricação de produtos cerâmicos refratários
What it covers
- A fabricação de artefatos refratários de cerâmica (tijolos, ladrilhos e semelhantes)
- A fabricação de materiais refratários aluminosos, silicosos, sílico-aluminosos, grafitosos, pós-exotérmicos, chamote e semelhantes
Typical activities
- Fabricação de argamassa refrataria
- Fabricação de cerâmica refratária
- Fabricação de concretos (betões) refratários e composicões semelhantes
- Fabricação de ladrilhos cerâmicos refratários
- Fabricação de massa refrataria - inclusive chamote
- Fabricação de peças refratarias de cerâmica
- Fabricação de peças refratarias de dolomita
- Fabricação de pedras refratarias para calefação (pedras para fogareiros, fogões e semelhantes)
- Fabricação de pó refratário
- Fabricação de pos exotérmicos
- Fabricação de produtos cerâmicos refratários
- Fabricação de produtos refratários contendo magnesita, dolomita ou cromita
See the other 8 typical activities
- Fabricação de refratários aluminosos
- Fabricação de refratários grafitosos
- Fabricação de refratários, n.e.
- Fabricação de refratários sílico-aluminosos
- Fabricação de refratários silicosos
- Fabricação de tijolos cerâmicos refratários
- Fabricação de tijolos, placas, ladrilhos e outras peças de cerâmica refratária para construção, exceto de farinhas siliciosas fósseis
- Produção de cimento refratário
Frequently asked questions about CNAE 2341-9/00
How many CNAE 2341-9/00 companies are there in Brazil?
386 active companies have CNAE 2341-9/00 as their main activity, according to the Receita Federal's October 2026 publication. It is 924th among the country's activities by companies.
Which federative unit has the most companies in this activity?
São Paulo, with 98. There, 0.0 of every 100 active companies have this main activity, against 0.0 in the national registry.
Does this total include branches and secondary activities?
No. Each active company is counted once, by its head office and registered main activity. A company may carry out this activity as a secondary activity and be excluded from the count. Geographic distribution uses the registered location; records without a recognized federative unit may be counted nationally without appearing in local groups.
Does active status mean a company is qualified for a contract?
No. Active status describes the Receita Federal registration. It does not establish tax compliance, creditworthiness, licences, ability to fulfil a contract or quality. Check the relevant official documents and the contract's requirements.
How we count
Active companies in the Brazilian CNPJ registry with this as their main activity, counted once by head office. Location is taken from the registry. Where available, openings are for the last 12 months, compared with the previous 12 months.