CNAE 2019-3/01 · Brazil
Elaboração de combustíveis nucleares
2 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
- 2
- 1,320th of 1,329 activities
- Opened in 12 months
- 0
- 1,276th by openings
- Of every 100 companies in the country
- 0.0
- do this activity
- Openings per 100 active
- 0
- 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.- INDUSTRIAS NUCLEARES DO BRASIL S.A - INBRio de Janeiro (RJ)
- CONUAR S/A (COMBUSTIBLES NUCLEARES ARGENTINOS)EXTERIOR (EX)
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
Federative units with the most companies
- 1 Rio de Janeiro 1
Cities with the most companies
active companies by head office
What activity 2019-3/01 is
- Section C — Indústrias de transformação
- Division — Fabricação de produtos químicos
- Group — Fabricação de produtos químicos inorgânicos
- Class — Fabricação de produtos químicos inorgânicos não especificados anteriormente
What it covers
- A elaboração de elementos combustíveis para reatores nucleares
- O enriquecimento de urânio e tório
What it does not cover
- O tratamento de resíduos radioativos (3822-0/00)Classified under: 3822-0/00 Tratamento e disposição de resíduos perigosos
Typical activities
- Elaboração de combustíveis nucleares
- Enriquecimento de urânio e tório
- Fabricação de elementos combustíveis (cartuchos), não irradiados, para reatores nucleares
- Produção de elementos radioativos para uso industrial
- Urânio enriquecido ou empobrecido e seus compostos; outros elementos, isótopos e compostos radioativos; fabricação de
The activities of class 2019-3
fabricação de produtos químicos inorgânicos não especificados anteriormente, by subclass| Subclass | Active | Openings | Change |
|---|---|---|---|
| 2019-3/01 Elaboração de combustíveis nucleares · this one | 2 | 0 | — |
| 2019-3/99 Fabricação de outros produtos químicos inorgânicos não especificados anteriormente | 302 | 18 | — |
Frequently asked questions about CNAE 2019-3/01
How many CNAE 2019-3/01 companies are there in Brazil?
2 active companies have CNAE 2019-3/01 as their main activity, according to the Receita Federal's October 2026 publication. It is 1,320th among the country's activities by companies.
Which activities make up class 2019-3?
Class 2019-3 has 2 subclasses: 2019-3/01; 2019-3/99. The official names are in the subclass table. A company declares one main activity and may declare others as secondary activities.
Which federative unit has the most companies in this activity?
Rio de Janeiro, with 1. 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.