NATIONAL STEEL CO Form 6-K: Report of foreign private issuer
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2026-09-15: Form 6-K; Period of report 2026-09-30; Description 6-K; Document sid20260914_6k.htm.
- 2026-09-14: Form 6-K; Period of report 2026-09-30; Description 6-K; Document sid20260911_6k.htm.
- 2026-09-03: Form 6-K; Period of report 2026-09-30; Description 6-K; Document sid20260902_6k.htm.
- 2026-08-27: Form 6-K; Period of report 2026-06-30; Description 6-K; Document siditr2q26_6k.htm.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2026-09-15 | 6-K | 2026-09-30 | 6-K | sid20260914_6k.htm |
| 2026-09-14 | 6-K | 2026-09-30 | 6-K | sid20260911_6k.htm |
| 2026-09-03 | 6-K | 2026-09-30 | 6-K | sid20260902_6k.htm |
| 2026-08-27 | 6-K | 2026-06-30 | 6-K | siditr2q26_6k.htm |
| 2026-08-13 | 6-K | 2026-06-30 | 6-K | sidpr2q26_6k.htm |
| 2026-08-11 | 6-K | 2026-09-30 | 6-K | sid20260811_6k1.htm |
| 2026-08-11 | 6-K | 2026-09-30 | 6-K | sid20260811_6k.htm |
| 2026-08-10 | 6-K | 2026-09-30 | 6-K | sid20260810_6k.htm |
| 2026-07-31 | 6-K | 2026-09-30 | 6-K | sid20260730_6k1.htm |
| 2026-07-31 | 6-K | 2026-03-31 | 6-K | sid20260730_6k.htm |
| 2026-05-29 | 6-K | 2026-03-31 | 6-K | siditr1q26_6k.htm |
| 2026-05-14 | 6-K | 2026-03-31 | 6-K | sidpr1q26_6k.htm |
| 2026-04-30 | 6-K | 2026-06-30 | 6-K | sid20260430_6k.htm |
| 2026-03-27 | 6-K | 2025-12-31 | 6-K | sidfs4q25_6k.htm |
| 2026-03-23 | 6-K | 2026-03-31 | 6-K | sid20260320_6k.htm |
| 2026-03-12 | 6-K | 2026-03-31 | 6-K | sid20260311_6k.htm |
| 2026-03-12 | 6-K | 2025-12-31 | 6-K | sidpr4q25_6k.htm |
| 2026-01-15 | 6-K | 2026-03-31 | 6-K | sid20260114_6k.htm |
| 2026-01-15 | 6-K | 2026-03-31 | 6-K | sid20260114_6k1.htm |
| 2026-01-12 | 6-K | 2026-03-31 | 6-K | sid20260109_6k.htm |