# National Steel Co: filings

SID · NYSE · CIK 1049659 · [Materials](/sectors/materials.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/sid.md) · [Financials](/companies/sid/financials.md) · [Filings](/companies/sid/filings.md) · [Insiders](/companies/sid/insiders.md)

## Reports and events: 745 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (6-K 727, 6-K/A 39, UPLOAD 31, CORRESP 25, 20-F 18, 3 14, SD 13, 20-F/A 8, CT ORDER 4, NT 20-F 3, F-6EF 2, F-6 POS 2, EFFECT 1, F-6 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-09 | 17:10 ET | [6-K](/filings/0001292814-26-004888.md) | Report of a foreign private issuer, period 2026-12-31 | 0001292814-26-004888 |
| 2026-09-29 | 09:00 ET | [6-K](/filings/0001292814-26-004734.md) | Report of a foreign private issuer, period 2026-09-30 | 0001292814-26-004734 |
| 2026-09-15 | 08:46 ET | [6-K](/filings/0001292814-26-004556.md) | Report of a foreign private issuer, period 2026-09-30 | 0001292814-26-004556 |
| 2026-09-14 | 18:07 ET | [6-K](/filings/0001292814-26-004538.md) | Report of a foreign private issuer, period 2026-09-30 | 0001292814-26-004538 |
| 2026-09-03 | 18:51 ET | [6-K](/filings/0001292814-26-004460.md) | Report of a foreign private issuer, period 2026-09-30 | 0001292814-26-004460 |
| 2026-08-27 | 16:46 ET | [6-K](/filings/0001292814-26-004375.md) | Report of a foreign private issuer, period 2026-06-30 | 0001292814-26-004375 |
| 2026-08-13 | 13:53 ET | [6-K](/filings/0001292814-26-004216.md) | Report of a foreign private issuer, period 2026-06-30 | 0001292814-26-004216 |
| 2026-08-11 | 08:14 ET | [6-K](/filings/0001292814-26-004188.md) | Report of a foreign private issuer, period 2026-09-30 | 0001292814-26-004188 |
| 2026-08-11 | 08:01 ET | [6-K](/filings/0001292814-26-004186.md) | Report of a foreign private issuer, period 2026-09-30 | 0001292814-26-004186 |
| 2026-08-10 | 10:11 ET | [6-K](/filings/0001292814-26-004156.md) | Report of a foreign private issuer, period 2026-09-30 | 0001292814-26-004156 |
| 2026-07-31 | 21:36 ET | [6-K](/filings/0001292814-26-003996.md) | Report of a foreign private issuer, period 2026-09-30 | 0001292814-26-003996 |
| 2026-07-31 | 21:32 ET | [6-K](/filings/0001292814-26-003994.md) | Report of a foreign private issuer, period 2026-03-31 | 0001292814-26-003994 |
| 2026-05-29 | 16:07 ET | [6-K](/filings/0001292814-26-003249.md) | Report of a foreign private issuer, period 2026-03-31 | 0001292814-26-003249 |
| 2026-05-14 | 06:02 ET | [6-K](/filings/0001292814-26-003025.md) | Report of a foreign private issuer, period 2026-03-31 | 0001292814-26-003025 |
| 2026-04-30 | 16:58 ET | [6-K](/filings/0001292814-26-002720.md) | Report of a foreign private issuer, period 2026-06-30 | 0001292814-26-002720 |
| 2026-04-30 | 16:25 ET | [20-F](/filings/0001292814-26-002714.md) | Annual report of a foreign private issuer, period 2025-12-31 | 0001292814-26-002714 |
| 2026-03-27 | 18:36 ET | [6-K](/filings/0001292814-26-001795.md) | Report of a foreign private issuer, period 2025-12-31 | 0001292814-26-001795 |
| 2026-03-23 | 06:02 ET | [6-K](/filings/0001292814-26-001641.md) | Report of a foreign private issuer, period 2026-03-31 | 0001292814-26-001641 |
| 2026-03-12 | 06:06 ET | [6-K](/filings/0001292814-26-000807.md) | Report of a foreign private issuer, period 2026-03-31 | 0001292814-26-000807 |
| 2026-03-12 | 06:03 ET | [6-K](/filings/0001292814-26-000805.md) | Report of a foreign private issuer, period 2025-12-31 | 0001292814-26-000805 |
| 2026-01-15 | 08:24 ET | [6-K](/filings/0001292814-26-000116.md) | Report of a foreign private issuer, period 2026-03-31 | 0001292814-26-000116 |
| 2026-01-15 | 08:19 ET | [6-K](/filings/0001292814-26-000114.md) | Report of a foreign private issuer, period 2026-03-31 | 0001292814-26-000114 |
| 2026-01-12 | 17:57 ET | [6-K](/filings/0001292814-26-000048.md) | Report of a foreign private issuer, period 2026-03-31 | 0001292814-26-000048 |
| 2025-12-19 | 19:20 ET | [6-K](/filings/0001292814-25-004323.md) | Report of a foreign private issuer, period 2025-12-31 | 0001292814-25-004323 |
| 2025-12-17 | 16:31 ET | [6-K](/filings/0001292814-25-004311.md) | Report of a foreign private issuer, period 2025-12-31 | 0001292814-25-004311 |
| 2025-11-20 | 18:17 ET | [6-K](/filings/0001292814-25-004046.md) | Report of a foreign private issuer, period 2025-09-30 | 0001292814-25-004046 |
| 2025-11-10 | 17:07 ET | [6-K](/filings/0001292814-25-003879.md) | Report of a foreign private issuer, period 2025-09-30 | 0001292814-25-003879 |
| 2025-08-15 | 19:51 ET | [6-K](/filings/0001292814-25-003083.md) | Report of a foreign private issuer, period 2025-06-30 | 0001292814-25-003083 |
| 2025-08-06 | 08:58 ET | [6-K](/filings/0001292814-25-002910.md) | Report of a foreign private issuer, period 2025-09-30 | 0001292814-25-002910 |
| 2025-08-01 | 06:03 ET | [6-K](/filings/0001292814-25-002849.md) | Report of a foreign private issuer, period 2025-06-30 | 0001292814-25-002849 |
| 2025-07-31 | 08:35 ET | [6-K](/filings/0001292814-25-002807.md) | Report of a foreign private issuer, period 2025-09-30 | 0001292814-25-002807 |
| 2025-07-14 | 18:10 ET | [6-K](/filings/0001292814-25-002665.md) | Report of a foreign private issuer, period 2025-09-30 | 0001292814-25-002665 |
| 2025-05-22 | 16:03 ET | [6-K](/filings/0001292814-25-002191.md) | Report of a foreign private issuer, period 2025-03-31 | 0001292814-25-002191 |
| 2025-05-09 | 06:02 ET | [6-K](/filings/0001292814-25-001959.md) | Report of a foreign private issuer, period 2025-03-31 | 0001292814-25-001959 |
| 2025-05-09 | 21:40 ET | [6-K](/filings/0001292814-25-001956.md) | Report of a foreign private issuer, period 2025-06-30 | 0001292814-25-001956 |
| 2025-05-01 | 17:48 ET | [6-K](/filings/0001292814-25-001809.md) | Report of a foreign private issuer, period 2025-06-30 | 0001292814-25-001809 |
| 2025-04-30 | 17:21 ET | [20-F](/filings/0001292814-25-001805.md) | Annual report of a foreign private issuer, period 2024-12-31 | 0001292814-25-001805 |
| 2025-04-02 | 08:14 ET | [6-K](/filings/0001292814-25-001323.md) | Report of a foreign private issuer, period 2025-06-30 | 0001292814-25-001323 |
| 2025-03-28 | 15:25 ET | [6-K](/filings/0001292814-25-001133.md) | Report of a foreign private issuer, period 2024-12-31 | 0001292814-25-001133 |
| 2025-03-13 | 09:53 ET | [6-K](/filings/0001292814-25-000842.md) | Report of a foreign private issuer, period 2024-12-31 | 0001292814-25-000842 |
| 2025-01-21 | 06:02 ET | [6-K](/filings/0001292814-25-000140.md) | Report of a foreign private issuer, period 2025-03-31 | 0001292814-25-000140 |
| 2024-12-31 | 18:12 ET | [6-K](/filings/0001292814-24-004695.md) | Report of a foreign private issuer, period 2024-12-31 | 0001292814-24-004695 |
| 2024-12-11 | 08:06 ET | [6-K](/filings/0001292814-24-004492.md) | Report of a foreign private issuer, period 2024-12-31 | 0001292814-24-004492 |
| 2024-12-11 | 08:03 ET | [6-K](/filings/0001292814-24-004490.md) | Report of a foreign private issuer, period 2024-12-31 | 0001292814-24-004490 |
| 2024-12-04 | 08:09 ET | [6-K](/filings/0001292814-24-004418.md) | Report of a foreign private issuer, period 2024-12-31 | 0001292814-24-004418 |
| 2024-11-27 | 16:08 ET | [6-K](/filings/0001292814-24-004340.md) | Report of a foreign private issuer, period 2024-09-30 | 0001292814-24-004340 |
| 2024-11-20 | 20:38 ET | [6-K](/filings/0001292814-24-004269.md) | Report of a foreign private issuer, period 2024-12-31 | 0001292814-24-004269 |
| 2024-11-15 | 20:36 ET | [6-K](/filings/0001292814-24-004243.md) | Report of a foreign private issuer, period 2024-12-31 | 0001292814-24-004243 |
| 2024-11-14 | 08:02 ET | [6-K](/filings/0001292814-24-004227.md) | Report of a foreign private issuer, period 2024-09-30 | 0001292814-24-004227 |
| 2024-11-06 | 07:20 ET | [6-K](/filings/0001292814-24-004029.md) | Report of a foreign private issuer, period 2024-12-31 | 0001292814-24-004029 |

Page 1 of 15. [Older](/companies/sid/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 30, 2026, 06:32 ET. No prices; not investment advice.