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BASIS OF CONSOLIDATION AND INVESTMENTS (Tables)
 12 Months Ended
Dec. 31, 2024
Basis Of Consolidation And Investments  
Schedule of consolidated entities information
           
    Equity interests (%)    
Companies   12/31/2024   12/31/2023   Core business
Direct interest in subsidiaries: full consolidation            
CSN Islands VII Corp.    100.00    100.00    Financial transactions 
CSN Inova Ventures    100.00    100.00    Equity interests and financial transactions
CSN Islands XII Corp.    100.00    100.00    Financial transactions 
CSN Steel S.L.U.    100.00    100.00    Equity interests and financial transactions
TdBB S.A (*)    100.00    100.00    Equity interests 
Sepetiba Tecon S.A.    99.99    99.99    Port services 
Minérios Nacional S.A.    99.99    99.99    Mining and Equity interests 
Companhia Florestal do Brasil    99.99    99.99    Reforestation 
Estanho de Rondônia S.A.    99.99    99.99    Tin Mining
Companhia Metalúrgica Prada     99.89    99.89    Manufacture of containers and distribution of steel products 
CSN Mineração S.A. (7)    69.01    79.75    Mining
CSN Energia S.A.     99.99    99.99    Sale of electric power 
FTL - Ferrovia Transnordestina Logística S.A.     92.71    92.71    Railroad logistics 
Nordeste Logística S.A.    99.99    99.99    Port services 
CSN Inova Ltd.     100.00    100.00    Advisory and implementation of new development projec 
CBSI - Companhia Brasileira de Serviços de Infraestrutura    99.99    99.99    Services render 
CSN Cimentos Brasil S.A.     99.99    99.99    Manufacturing and sale of cement
Berkeley Participações e Empreendimentos S.A.     100.00    100.00    Electric power generation and equity interests 
CSN Inova Soluções S.A.     99.99    99.90    Equity interests 
CSN Participações I     99.90    99.90    Equity interests 
Circula Mais Serviços de Intermediação Comercial S.A.    0.10    0.10    Commercial intermediation for the purchase and sale of assets and materials in general 
CSN Participações III     99.90    99.90    Equity interests 
CSN Participações IV    99.90    99.90    Equity interests 
CSN Participações V    99.90    99.90    Equity interests 
CSN Incorporação e Participações Ltda. (6)    99.99      Equity interests 
             
Indirect interest in subsidiaries: full consolidation            
Lusosider Projectos Siderúrgicos S.A.    100.00    100.00    Equity interests and product sales 
Lusosider Aços Planos, S. A.    100.00    99.99    Steel and Equity interests 
CSN Resources S.A.    100.00    100.00    Financial transactions and Equity interests 
Companhia Brasileira de Latas     99.89    99.88    Sale of cans and packages in general and Equity interests 
Companhia de Embalagens Metálicas MMSA     99.88    99.87    Production and sale of cans and related activities 
Companhia de Embalagens Metálicas - MTM     99.88    99.87    Production and sale of cans and related activities 
CSN Productos Siderúrgicos S.L.    100.00    100.00    Financial transactions, product sales and Equity interests 
Stalhwerk Thüringen GmbH     100.00    100.00    Production and sale of long steel and related activities 
CSN Steel Sections Polska Sp.Z.o.o     100.00    100.00    Financial transactions, product sales and Equity interests 
CSN Mining Holding, S.L.U.    69.01    79.75    Financial transactions, product sales and Equity interests 
CSN Mining GmbH    69.01    79.75    Financial transactions, product sales and Equity interests 
CSN Mining Asia Limited    69.01    79.75    Commercial representation 
Lusosider Ibérica S.A.     100.00    100.00    Steel, commercial and industrial activities and equity interests 
CSN Mining Portugal, Unipessoal Lda. (4)      79.75    Commercial and representation of products 
Companhia Siderúrgica Nacional, LLC    100.00    100.00    Import and distribution/resale of products 
Elizabeth Cimentos S.A.    99.99    99.98    Manufacturing and sale of cement
Santa Ana Energética S.A.    99.99    99.98    Electric power generation 
Topázio Energética S.A.     99.99    99.98    Electric power generation 
Brasil Central Energia Ltda.     99.99    99.98    Electric power generation 
Circula Mais Serviços de Intermediação Comercial S.A.    99.99    99.90    Commercial intermediation for the purchase and sale of assets and materials in general 
Metalgráfica Iguaçu S.A     99.89    99.89    Metal packaging manufacturing 
Companhia Energética Chapecó     69.01    79.75    Electric power generation 
Companhia Estadual de Geração de Energia Elétrica - CEEE-G (3)    100.00    98.98    Electric power generation 
Ventos de Vera Cruz S.A.     99.99    98.97    Electric power generation 
Ventos de Curupira S.A     99.99    98.97    Electric power generation 
Ventos de Povo Novo S.A.     99.99    98.97    Electric power generation 
MAZET Maschinenbau und Zerspanungstechnik Unterwellwnborn GmbH    100.00    100.00    Production and sale of long steel and related activities 
CSN Mining International GmbH (1)    69.01    79.75    Commercial and representation of products 
CSN International Steel GmbH (4)    100.00   -     Commercial and representation of products 
             
Direct interest in joint operations: proportionate consolidation            
Itá Energética S.A.    48.75    48.75    Electric power generation 
             
Direct interest in joint ventures: equity method            
MRS Logística S.A.    18.75    18.64    Railroad transportation 
Aceros Del Orinoco S.A. (*)    31.82    31.82    Dormant company 
Transnordestina Logística S.A.     48.03    48.03    Railroad logistics 
Equimac S.A     50.00    50.00    Rental of commercial and industrial machinery and equipment 
             
Indirect interest in joint ventures: equity method            
MRS Logística S.A.     12.93    14.86    Railroad transportation 
             
Direct interest in associates: equity method            
Arvedi Metalfer do Brasil S.A.     20.00    20.00    Metallurgy and Equity interests 
Panatlântica S.A. (2)    29.92      Steel 
             
Indirect interest in affiliates: equity method            
Jaguari Energética S.A.     10.50    10.39    Electric power generation 
Chapecoense Geração S.A.  (3)    9.00    8.91    Electric power generation 
Companhia Energética Rio das Antas - Ceran (3)    30.00    29.69    Electric power generation 
Ventos do Sul Energia S.A. (3)      9.90    Electric power generation 
Foz Chapecó Energia S.A.  (3)    9.00    8.91    Electric power generation 
             
Exclusive funds: full consolidation            
Diplic II- Private credit balanced mutual fund    100.00    100.00    Investment fund 
Caixa Vértice - Private credit balanced mutual fund    100.00    100.00    Investment fund 
VR1 - Private credit balanced mutual fund    100.00    100.00    Investment fund 
             
Consortiuns            
Consórcio Itaúba    100.00    100.00    Electric power generation 
Consórcio Passo Real    100.00    100.00    Electric power generation 
Consórcio da Usina Hidrelétrica de Igarapava    17.92    17.92    Electric power generation 
Consórcio Dona Francisca    15.00    15.00    Electric power generation 

 

(*) Dormant companies.
(1)On December 2023, the company CSN Mining International GmbH, headquartered in Switzerland, began its iron ore trading operations.
(2)On January 15, 2024, Panatlântica began to be evaluated through the equity method due to the acquisition of 18.61% of shares at a total price of R$ 150,000, resulting in the Company now holding 29.92% (11.31% as of December 31, 2023) of Panatlântica's capital. Prior to such acquisition, the Company assessed the investment through fair value through profit or loss.
(3)On February 21, 2024, the Company came to hold 100% of the shares of subsidiary CEEE-G (98.98% as of December 31, 2023), and for this reason, there was a percentage increase in the indirect participation of companies Companhia Energética Rio das Antas – CERAN, Ventos do Sul Energia S.A., Chapecoense Geração S.A., and Foz Chapecó Energia S.A.
(4)On March 7, 2024, the company CSN International Steel GmbH was established by the Company's direct Subsidiary, CSN Steel S.L.U..
(5)On September 5, 2024, CSN Mining Portugal Unipessoal Ltda was liquidated and extincted.
(6)On November 5, 2024, the Company, together with its subsidiary Companhia Florestal do Brasil, established CSN Incorporação e Participação Ltda., whose main purpose is real estate development.
(7)On November 12, 2024, the Company sold part of its shares held in the subsidiary CSN Mineração to Itochu Corporation (589,304,801 shares), reducing its stake from 79.75% to 69.01%, see note 9.c.
Schedule of changes in investments in joint ventures, joint operations, associates and other investments
                               
        Consolidated
Companies   Ref.   Final balance on 12/31/2023   Capital increase   Dividends   Equity Income   Comprehensive income   Others   Final balance on 12/31/2024
               
               
Investments under the equity method                                
Joint-venture, Joint-operation and Affiliate                                
MRS Logistica       2,381,607     (126,163)    529,211       14,513   2,799,168
Fair Value MRS        480,622                  480,622
Fair Value MRS amortization        (93,971)       (11,748)           (105,719)
Transnordestina Logística S.A.       1,160,944       (23,599)           1,137,345
Fair Value -Transnordestina        659,106                  659,106
Arvedi Metalfer do Brasil S.A.        35,488        (231)            35,257
Panatlântica S.A.           150,000   (46,075)    19,233   23,871   78,737    225,766
Equimac S.A       23,793     (1,342)    9,282            31,733
Indirect interest in affiliates - CEEE-G        165,891     (31,610)    44,049        (31,577)    146,753
Fair Value indirect participation CEEE-G        319,709                  319,709
Fair Value amortization indirect participation CEEE-G        (23,896)       (18,627)           (42,523)
        5,109,293   150,000   (205,190)    547,570   23,871   61,673   5,687,217
                                 
Fair value investments through profit or loss (1)   14   78,737                  (78,737)  
Others (2)       49,149    5,494               4,151    58,794
         127,886    5,494            (74,586)    58,794
                                 
Total shareholdings       5,237,179   155,494   (205,190)    547,570   23,871    (12,913)   5,746,011
                                 
Classification of investments in the balance sheet                                
Equity interests       5,237,177                       5,746,011
Investment Property        205,954                        202,040
Total investments in the asset       5,443,131                       5,948,051

(1)The reconciliation of the balance refers to the change in the valuation method of the investee Panatlântica due to the aforementioned share acquisitions. As mentioned, the company, which was previously valued at fair value through profit or loss, is now being valued using the equity method.
(2)Strategic investments in startups made by subsidiary CSN Inova Ventures in the following companies: Alinea Health Holdings Ltda. I.Systems Aut. Ind., 2D Materials, H2Pro Ltda, 1S1 Energy, Traive INC., OICO Holdings and Global Dot.com.
Schedule of equity in results
     
      Consolidated
  12/31/2024   12/31/2023
   
Equity in results of affiliated companies      
MRS Logística S.A.  529,211    449,462
Transnordestina Logística S.A.  (23,599)   (23,568)
Arvedi Metalfer do Brasil S.A.  (231)    (1,332)
Equimac S.A 9,282   5,311
Indirect interest in affiliates - CEEE-G  44,049    50,757
Panatlântica S.A.  19,233    
Fair Value Amortization (30,375)   (49,068)
   547,570    431,562
Reclassification IAS 28 (1) (99,279)   (80,313)
Others (243)   (118)
Equity in results   448,048    351,131

(1) The operating margin of intercompany operations with group companies classified as joint ventures, which are not consolidated, are reclassified in the Income Statement of the Investment group to the groups of costs and income tax and social contribution.
Schedule of net equity
 
(R$'000)  Net equity as of June 30, 2023 
Cash and cash equivalents 111,937
Trade receivables   95,506
Inventories 245,701
Other assets  229,560
Corporate investments  1,198,743
 Property, plant and equipment   3,573,944
Intangíible assets  889,979
Investment properties  631
Total Assets  6,346,001
Trade payables 375,049
Borrowings and financing   2,678,625
Salaries and social charges   15,432
 Taxes payable    42,383
Lease liabilities   15,392
Tax, social security, labor and civil   11,489
Provisions for environmental liabilities and asset decommissioning   83,076
Other payables 741,279
Total Liabilities  3,962,725
   
Net assets  2,383,276
Schedule of share repurchase programs of subsidiary CSN Mineracao
                               
Program   Board’s Authorization   Authorized amount   Program period   Average buyback price   Minimum and maximum buyback price   Number bought back   Share cancelation   Balance in treasury shares
3º   05/18/2022   106,000,000   From 5/19/2022 to 5/18/2023          
4 º   06/28/2024   100,000,000   From 6/28/2024 to 12/19/2025   R$ 6.0497   R$ 5.2798 and R$ 7.1162    53,294,300     53,294,300
4 º                      (3)   (3)
                         53,294,300    (3)   53,294,297
Schedule of secondary distribution of shares
   
    11/30/2024
Number of shares sold   589,304,801
Share price    R$ 7.50
(+) Cash received (a)     4,419,786
Number of shares sold   589,304,801
Equity cost of the share    R$ 1.72
(-) Write-off of investment (b)    1,013,604
(=) Gain in operation (a) - (b)    3,406,182
Schedule of shareholding composition
   
SHAREHOLDER SHARES % SHAREHOLDING
COMPANHIA SIDÚRGICA NACIONAL 3,785,474,692 69.01%
ITOCHU CORPORATION 589,304,801 10.74%
Japão Brasil Minério de Ferro Participações LTDA 507,762,966 9.26%
POSCO Holding Inc. 102,186,675 1,86%
CHINA STEEL CORPORATION 22,366,860 0.41%
TREASURY SHARES 53,294,297 0.97%
OTHERS 424,948,544 7.75%
Total SHARES 5,485,338,835 100.00%
Schedule of joint ventures and joint operations financial information
                               
    12/31/2024   12/31/2023
    Joint-Venture    Joint-Operation    Joint-Venture   Joint-Operation
Equity interest (%)   MRS Logística   Transnordestina Logística   Equimac S.A.   Itá Energética   MRS Logística   Transnordestina Logística   Equimac S.A.   Itá Energética
  37.49%   48.03%   50.00%   48.75%   37.27%   48.03%   50.00%   48.75%
Balance sheet                                
 Current Assets                                 
Cash and cash equivalents   4,147,393    277,966   22,028    82,129    3,388,052    786,007    13,953    93,712
Advances to suppliers   42,649    45,512    49    395   101,318    6,161    77   409
Other assets    1,182,598    83,348   25,070    27,251    1,390,540    67,758    16,747    30,517
Total current assets   5,372,640    406,826   47,147    109,775    4,879,910    859,926    30,777    124,638
 Non-current Assets                                 
Other assets     448,946    143,562    142    10,144   679,749    97,560   599    18,054
Investments, PP&E and intangible assets   14,791,500    13,193,728   75,782    263,998   12,774,225    12,062,189    48,570    296,818
Total non-current assets   15,240,446    13,337,290   75,924    274,142   13,453,974    12,159,749    49,169    314,872
Total Assets   20,613,086    13,744,116    123,071    383,917   18,333,884    13,019,675    79,946    439,510
                                 
Current Liabilities                                 
Borrowings and financing     547,803    36,181   19,009     993,367    167,201    8,552  
Lease liabilities    738,978      288     565,002     684  
Other liabilities   2,103,399    128,528   16,642    15,664    2,111,251    80,851    8,310    21,222
Total current liabilities   3,390,180    164,709   35,939    15,664    3,669,620    248,052    17,546    21,222
 Non-current Liabilities                                 
Borrowings and financing    7,524,173    7,943,354   21,074      5,879,207    8,481,707    12,734  
Lease liabilities   1,158,058      213      1,665,072     253  
Other liabilities   1,074,757    3,268,493   2,379    4,457   729,736    1,873,232    1,827    22,140
Total non-current liabilities   9,756,988    11,211,847   23,666    4,457    8,274,015    10,354,939    14,814    22,140
Shareholders’ equity   7,465,918    2,367,560   63,466    363,796    6,390,249    2,416,684    47,586    396,148
Total liabilities and shareholders’
equity		   20,613,086    13,744,116    123,071    383,917   18,333,884    13,019,675    79,946    439,510

 

                                 
    01/01/2024 to 12/31/2024   01/01/2023 to 12/31/2023
    Joint-Venture   Joint-Operation       Joint-Venture   Joint-Operation
Equity interest (%)   MRS Logística   Transnordestina Logística   Equimac S.A.   Itá Energética   MRS Logística   Transnordestina Logística   Equimac S.A.   Itá Energética
  37.49%   48.03%   50.00%   48.75%   37.27%   48.03%   50.00%   48.75%
Statements of Income                                
Net revenue   7,028,472      84,049   187,622    6,445,618      52,453   191,430
Cost of sales and services    (3,909,609)     (45,317)    (121,034)   (3,444,706)     (29,333)   (99,756)
Gross profit   3,118,863      38,732    66,588    3,000,912      23,120    91,674
Operating (expenses) income    89,237   (34,704)   (7,433)   (66,437)    (485,694)   (38,315)   (4,640)   (83,139)
Financial income (expenses), net    (1,160,359)   (14,421)   (3,308)    14,076    (722,407)   (10,745)   (2,763)    5,849
Profit/(Loss) before IR/CSLL   2,047,741   (49,125)    27,991    14,227    1,792,811   (49,060)    15,717    14,384
Current and deferred IR/CSLL   (632,231)     (8,398)   (7,909)    (586,831)     (3,388)   (4,673)
Profit / (loss) for the year   1,415,510   (49,125)    19,593    6,318    1,205,980   (49,060)    12,329    9,711
Schedule of investment properties
               
                Consolidated
    Ref.   Land   Buildings    Total
Balance at December 31, 2023        156,811    49,143    205,954
Cost        156,811    82,737    239,548
Accumulated depreciation           (33,594)   (33,594)
Balance at December 31, 2023        156,811    49,143    205,954
Depreciation    26        (3,961)    (3,961)
Transfer between groups - fixed assets and investment property        726        726
Write-offs   27   (679)       (679)
Balance at December 31, 2024        156,858    45,182    202,040
Cost        156,858    83,285    240,143
Accumulated depreciation           (38,103)   (38,103)
Balance at December 31, 2024        156,858    45,182    202,040
Schedule of average estimated useful lives
     
      Consolidated
  12/31/2024   12/31/2023
Buildings 28   28