CSNA3 CVM Filings — Documents and API Access
CSNA3 is a ticker for Companhia Siderúrgica Nacional. Pull CSNA3 CVM filings through apicvm: resolve, list DFP/ITR/FRE, download PDFs, or extract page-level text on Pro.
Company overview
| Field | Value |
|---|---|
| Name | Companhia Siderúrgica Nacional |
| Tickers | CSNA3 (ON) |
| CNPJ | 33042730000104 |
| Sector | Steel / Materials |
| Regulator | CVM |
Confirm live metadata with resolve — registration fields can change. CNPJ sourced from the Hold company ticker seeder.
Document types available
| Type | Description |
|---|---|
| DFP | Annual standardized financial statements |
| ITR | Quarterly financial information |
| FRE | Formulário de Referência |
Corpus coverage varies by year. Query the API for the current inventory instead of assuming portal parity.
Resolve CSNA3
export APICVM_KEY='apicvm_...'
export APICVM_URL='https://apicvm.dev'
curl -H "Authorization: Bearer $APICVM_KEY" \
"$APICVM_URL/v1/companies/resolve?query=CSNA3&by=ticker"List CSNA3 DFP filings (2024)
curl -H "Authorization: Bearer $APICVM_KEY" \
"$APICVM_URL/v1/documents?ticker=CSNA3&type=DFP&year=2024&perPage=20"Python: FRE sections mentioning risk
import os, requests
BASE = os.environ["APICVM_URL"]
H = {"Authorization": f"Bearer {os.environ['APICVM_KEY']}"}
docs = requests.get(
f"{BASE}/v1/documents",
headers=H,
params={"ticker": "CSNA3", "type": "FRE", "year": 2024, "name": "Risco", "perPage": 20},
).json()
for d in docs["data"]:
print(d["id"], d["name"])Download a filing
curl -OJ -H "Authorization: Bearer $APICVM_KEY" \
"$APICVM_URL/v1/documents/<document-id>/file"Inventory check
curl -H "Authorization: Bearer $APICVM_KEY" \
"$APICVM_URL/v1/documents?ticker=CSNA3&perPage=20"Current limitations
- Do not invent year/type document counts — print API results.
- Extraction credits apply only to text extraction, not PDF download.
- Coverage follows ingestion, not the full historical portal.
Next steps
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