CSN Files 6-K Report for Q3 2025

TL;DR

CSN filed its Q3 2025 6-K, confirming it's a foreign private issuer filing under Form 20-F.

AI Summary

Companhia Siderúrgica Nacional (CSN), also known as National Steel Company, filed a Form 6-K on November 20, 2025, reporting for the period ending September 30, 2025. The filing is a report of a foreign private issuer and indicates that the company files annual reports under Form 20-F.

Why It Matters

This filing provides an update on Companhia Siderúrgica Nacional's reporting status and confirms its adherence to SEC regulations for foreign private issuers.

Risk Assessment

Risk Level: low — This is a routine filing for a foreign private issuer and does not contain new financial or operational information that would typically indicate elevated risk.

Key Players & Entities

• Companhia Siderúrgica Nacional (company) — Registrant
• National Steel Company (company) — Registrant's English name
• 0001292814-25-004046 (filing_id) — Accession Number
• 20251120 (date) — Filing Date
• 20250930 (date) — Period of Report
• Form 20-F (document) — Annual Report Form
• Form 6-K (document) — Report Type

FAQ

Filing Documents

• siditr3q25_6k.htm (6-K) — 2217KB
• siditr3q256k_001.jpg (GRAPHIC) — 30KB
• siditr3q256k_002.jpg (GRAPHIC) — 207KB
• siditr3q256k_003.jpg (GRAPHIC) — 116KB
• siditr3q256k_004.jpg (GRAPHIC) — 102KB
• 0001292814-25-004046.txt ( ) — 2845KB

From the Filing

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November, 2025 Commission File Number 1-14732 COMPANHIA SIDERRGICA NACIONAL (Exact name of registrant as specified in its charter) National Steel Company (Translation of Registrant's name into English) Av. Brigadeiro Faria Lima 3400, 20 andar So Paulo, SP, Brazil 04538-132 (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F. Form 20-F ___X___ Form 40-F _______ Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. Yes _______ No ___X____ Companhia Siderúrgica Nacional S.A. BALANCE SHEET (In thousands of Reais) Consolidated Parent Company Consolidated Parent Company Notes 09/30/2025 12/31/2024 09/30/2025 12/31/2024 Notes 09/30/2025 12/31/2024 09/30/2025 12/31/2024 ASSET LIABILITIES AND SHAREHOLDERS' EQUITY Current Current Cash and cash equivalents 3 16,526,099 23,310,197 700,793 5,666,618 Borrowings and financing 12 8,852,012 8,821,679 4,926,573 5,201,174 Financial investments 4 914,077 911,378 896,613 895,573 Payroll and related taxes 688,931 560,695 232,445 184,696 Trade receivables 5 2,706,484 2,900,998 1,442,171 1,555,141 Trade payables 15 7,087,400 7,030,734 3,638,920 3,596,080 Inventory 6 10,265,297 10,439,741 6,506,401 6,839,246 Tax payables 761,584 719,253 132,874 195,063 Recoverable taxes 7 1,300,556 1,367,316 404,514 668,137 Labor and civil provisions 18 106,628 132,112 73,525 61,008 Other current assets 8 1,124,136 856,063 1,182,681 1,012,495 Advances from customers 16 4,097,692 3,648,639 415,969 382,350 Total current assets 32,836,649 39,785,693 11,133,173 16,637,210 Dividends and interest on equity payable 16 4,425 61,965 6,094 6,242 Trade payables – forfaiting 15.a 2,182,867 2,902,593 1,416,596 2,214,482 Non-Current Other payables 16 1,039,675 1,238,805 965,567 1,174,978 Long-term realizable asset Total current liabilities 24,821,214 25,116,475 11,808,563 13,016,073 Financial investments 4 24,864 169,977 142,423 Deferred taxes assets 17.b 6,646,949 7,345,326 4,475,408 4,750,333 Non-Current Inventory 6 2,030,856 1,761,172 Borrowings and financing 12 43,294,938 48,092,942 22,462,624 25,044,466 Recoverable taxes 7 3,653,742 2,799,951 2,485,087 1,838,343 Deferred taxes assets 17.b 632,529 541,329 Other non-current assets 8 4,865,058 5,232,370 5,711,140 5,360,281 Provision for tax, social security, labor, civil and environmental risks 18 798,575 1,245,590 284,077 276,689 17,221,469 17,308,796 12,671,635 12,091,380 Employee benefits 516,536 473,046 495,333 454,161 Provisions for environmental liabilities and decommissioning 19 1,203,930 1,133,363 133,842 142,989 Investments 9 7,163,009 5,948,051 27,835,808 26,292,822 Provision for investment losses 9 10,723,415 11,458,813 Property, plant and equipment 10 32,610,732 30,426,023 10,352,409 9,664,413 Other payables 16 12,202,503 11,844,793 2,007,904 2,089,266 Intangible assets 11 10,993,733 10,438,091 64,657 68,070 Total non-current liabilities 58,649,011 63,331,063 36,107,195 39,466,384 Total non-current assets 67,988,943 64,120,961 50,924,509 48,116,685 Shareholders’ equity Paid-up capital 21 10,240,000 10,240,000 10,240,000 10,240,000 Capital reserves 21.a 2,056,970 2,056,970 2,056,970 2,056,970 Legal reserves 1,158,925 1,158,925 1,158,925 1,158,925 Earnings reserves 640,460 3,232,313 640,460 3,232,311 Net income/(loss) (922,226) (2,591,853) (922,226) (2,591,851) Other comprehensive income 967,795 (1,824,917) 967,795 (1,824,917) Total shareholders' equity of controlling shareholders 14,141,924 12,271,438 14,141,924 12,271,438 Earnings attributable to the non-controlling interests 3,213,443 3,187,678 Total shareholders' equity 17,355,367 15,459,116 14,141,924 12,271,438 TOTAL ASSETS 100,825,592 103,906,654 62,057,682 64,753,895 TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY 100,825,592 103,906,654 62,057,682 64,753,895 The Accompanying notes are an integral part of these consolidation financial statement Companhia Siderúrgica Nacional S.A. (In thousands of Reais) Consolidated Controladora Consolidated Controladora Nine-

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