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BASIS OF CONSOLIDATION AND INVESTMENTS (Tables)
 12 Months Ended
Dec. 31, 2022
Basis Of Consolidation And Investments  
Schedule of consolidated entities information
           
    Equity interests (%)    
Companies   12/31/2022   12/31/2021   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    99.90   99.99   Manufacture of containers and distribution of steel products
CSN Mineração S.A.   79.75   78.24   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   Equity interests and product sales and iron ore
CSN Cimentos 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   99.99   Equity interests
CSN Participações I    99.99   99.99   Equity interests
Circula Mais Serviços de Intermediação Comercial S.A.     0.01   99.99   Commercial intermediation for the purchase and sale of assets and materials in general
CSN Participações III    99.99   99.99   Equity interests
CSN Participações IV   99.99   99.99   Equity interests
CSN Participações V   99.99   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.   99.99   99.99   Steel and Equity interests
CSN Resources S.A.    100.00    100.00   Financial transactions and Equity interests
Companhia Brasileira de Latas    99.99   99.99   Sale of cans and containers in general and Equity interests
Companhia de Embalagens Metálicas MMSA    99.99   99.99   Production and sale of cans and related activities
Companhia de Embalagens Metálicas - MTM    99.99   99.99   Production and sale of cans and related activities
CSN Steel Holdings 1, S.L.U. 1      100.00   Financial transactions, product sales and Equity interests
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.   79.75   78.24   Financial transactions, product sales and Equity interests
CSN Mining GmbH   79.75   78.24   Financial transactions, product sales and Equity interests
CSN Mining Asia Limited (8)   79.75   78.24   Commercial representation
Lusosider Ibérica S.A.     100.00    100.00   Steel, commercial and industrial activities and equity interests
CSN Mining Portugal, Unipessoal Lda.    79.75   78.24   Commercial and representation of products
Companhia Siderúrgica Nacional, LLC    100.00    100.00   Import and distribution/resale of products
Elizabeth Cimentos S.A.   99.98   99.98   Manufacturing and sale of cement 
Elizabeth Mineração Ltda 2     99.96   Mining 
Santa Ana Energética S.A.    100.00     Electric power generation
Topázio Energética S.A.     100.00     Electric power generation
Brasil Central Energia Ltda.     100.00     Electric power generation
Circula Mais Serviços de Intermediação Comercial S.A.   99.99     Commercial intermediation for the purchase and sale of assets and materials in general
CSN Cimentos Brasil S.A.    99.99     Manufacturing and sale of cement 
Metalgráfica Iguaçu S.A     100.00     Metal packaging manufacturing
Companhia Energética Chapecó    79.75     Electric power generation
Companhia Estadual de Geração de Energia Elétrica - CEEE-G    98.96     Electric power generation
Ventos de Vera Cruz S.A.    98.95     Electric power generation
Ventos de Curupira S.A    98.95     Electric power generation
Ventos de Povo Novo S.A.    98.95     Electric power generation
             
Direct interest in joint operations: proportionate consolidation            
Itá Energética S.A.   48.75   48.75   Electric power generation
Consórcio da Usina Hidrelétrica de Igarapava   17.92   17.92   Electric power consortium
             
Direct interest in joint ventures: equity method            
MRS Logística S.A.   18.64   18.64   Railroad transportation
Aceros Del Orinoco S.A. (*)   31.82   31.82   Dormant company
Transnordestina Logística S.A.    47.26   47.26   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.    14.86   14.58   Railroad transportation
             
Direct interest in associates: equity method            
Arvedi Metalfer do Brasil S.A.    20.00   20.00   Metallurgy and Equity interests
             
Indirect interest in affiliates: equity method            
Ventos da Lagoa Energia S.A.    10.00     Electric power generation
Jaguari Energética S.A.    10.50     Electric power generation
Chapecoense Geração S.A.      9.00     Electric power generation
Parques Eólicos Palmares S.A.    10.00     Electric power generation
Ventos do Litoral Energia S.A.    10.00     Electric power generation
Ventos dos índios Energia S.A.    10.00     Electric power generation
Companhia Energética Rio das Antas - Ceran    10.00     Electric power generation
Ventos do Sul S.A.    10.00     Electric power generation
Foz Chapecó Energia S.A.      10.00     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
(*)Dormant companies.
1- CSN Steel Holdings 1, S.L.U. was incorporated by CSN Productos Siderúrgicos S.L. on August 02, 2022
2- Elizabeth Mineração was incorporated by CSN Cimentos S/A on April 30, 2022.
Schedule of changes in investments, joint ventures, joint operations, associates and other investments
Schedule of changes in investments, joint ventures, joint operations, associates and other investments                            
                            Consolidated
Companies   Opening balance on 12/31/2021   Capital increase   Dividends   Equity Income   Comprehensive income   Others   Final balance on 12/31/2022
Investments under the equity method                            
Joint-venture, Joint-operation and Affiliate                            
MRS Logistica   1,806,542          (77,403)     325,800   (146)   105   2,054,898
Fair Value MRS   480,622                       480,622
Fair Value MRS amortization   (70,481)             (11,744)            (82,225)
Transnordestina Logística S.A.   1,114,232     100,000        (29,307)         (411)   1,184,514
Fair Value -Transnordestina (*)   271,117                   387,989   659,106
Arvedi Metalfer do Brasil (affiliate)    21,541             4,702         (461)     25,782
Equimac S.A   8,428     5,079        3,936    140   899     18,482
Indirect interest in affiliates - CEEE-G   -                   216,307   216,307
Fair Value indirect participation CEEE-G (1)   -                   359,024   359,024
Fair Value amortization indirect participation CEEE-G   -             (25,889)            (25,889)
    3,632,001     105,079     (77,403)     267,498   (6)   963,452   4,890,621
                             
Equity interests evaluated by the cost method (2)    27,041   14,052                     41,093
Investments at fair value through profit or loss (note 14)   190,320                     (95,620)     94,700
Others   285                      33,303     33,588
Other participations   217,646   14,052                (62,317)   169,381
                             
Total shareholdings   3,849,647     119,131     (77,403)     267,498   (6)   901,135   5,060,002
                             
Classification of investments in the balance sheet                            
Equity interests   3,849,647                       5,060,002
Investment Property   162,181                       159,080
Total investments in the asset   4,011,828                       5,219,082

 

(*)In 2022, the Company performed an impairment test of the joint venture Transnordestina Logistica S.A. and reversed the impairment of Fair Value of R$387,989. See details of the impairment test in note 10.e.

 

(1)As of December 31, 2022, the balance of R$ 359,024 refers to the Fair Value generated in the acquisition of CEEE-G, according to note 3.c.;

 

(2)In 2021 and 2022, through CSN Inova Ventures, strategic investments were made in startups, namely: Alinea Health Holdings Ltda. I. Systems Aut. Ind., 2D Materials, H2Pro Ltda, 1S1 Energy, Traive INC., OICO Holdings and Clarke Software;
Schedule of equity in results
     
      Consolidated
  12/31/2022   12/31/2021
   
Equity in results of affiliated companies      
MRS Logística S.A.   325,800     260,622
Transnordestina (29,307)   (45,870)
Arvedi Metalfer do Brasil   4,702     3,265
Equimac S.A   3,936    (608)
Fair Value Amortization (37,633)   (11,747)
    267,498     205,662
Other adjustments      
Cost of sales (80,006)   (62,982)
To taxes  27,202    21,414
Others  23,223    18,410
Equity in results    237,917     182,504
Schedule of primary distribution of shares
 
Gain on participation in the capital increase  1,060,530
Loss due to dilution of participation with issue of new shares   (231,044)
Equity adjustment by dilution of share percentage (7,393)
Net gain from the transaction 822,093
Schedule of Secondary Distribution of shares
   
Equity in the transaction    9,947,525
Number of share before initial public offering    5,430,057,060
Cost per share    R$ 1.83
     
Number of shares sold by CSN    377,804,907
Price per share    R$ 8.50
     
(+) Net cash generated in the transaction     3,211,342
(-) Transaction cost      (46,730)
(=) net cash reveivable (a)    3,164,612
(-) Cost of shares  (b)   (692,115)
(=) Net gain from the transaction (a)+(b)    2,472,497
Schedule of share repurchase programs of subsidiary CSN Mineracao
                               
Program   Board’s Authorization   Authorized quantity   Program period   Average buyback price   Minimum and maximum buyback price   Number bought back   Share cancelation   Treasury balance 
1º    03/24/2021     58,415,015    from 3/25/2021 to 9/24/2021     R$6.1451     R$5.5825 and R$6.7176     52,940,500         52,940,500
2º    11/03/2021     53,000,000    from 11/04/2021 to 9/24/2022     R$6.1644     R$5.0392 and R$6.1208     52,466,800        105,907,300
     05/18/2022           Not applicable     Not applicable      105,907,300    
3º    05/18/2022    106,000,000    from 05/19/2022 to 5/18/2023                     
                        105,407,300   105,907,300    
Schedule of breakdown of net assets
       
    12/31/2020   01/31/2021
Assets   Appraisal reports   Close balance
Trade receivables   37,171   54,684
Inventories    134,309    164,460
Other assets    29,186   30,228
Property, plant and equipment    3,151,349    3,129,161
Intangíible assets      8,086     8,086
Liabilities        
Trade payables   (253,186)   (278,538)
Other payables current     (42,074)     (34,301)
Lease liabilities     (42,257)     (24,430)
Other provisions     (66,490)     (64,125)
Net assets    2,956,094    2,985,225
Schedule of joint ventures and joint operations financial information
                               
                12/31/2022               12/31/2021
    Joint-Venture    Joint-Operation    Joint-Venture   Joint-Operation
  MRS Logística   Transnordestina Logística   Equimac S.A.   Itá Energética   MRS Logística   Transnordestina Logística   Equimac S.A.   Itá Energética
Equity interest (%)   37.27%   48.03%   50.00%   48.75%   37.27%   47.26%   50.00%   48.75%
Balance sheet                                
 Current Assets                                 
Cash and cash equivalents   867,937   1,164    8,983    46,946     1,836,612   1,259   2,077     42,500
Advances to suppliers    29,500    21,036    1,384   1,273    44,011    11,486   407    1,254
Other current assets   1,351,335    78,777     11,648    30,735     1,065,913    55,334   8,862     18,453
Total current assets   2,248,772     100,977     22,015    78,954     2,946,536    68,079    11,346     62,207
 Non-current Assets                                 
Other non-current assets   887,987     255,367    1,643    19,007     980,861     124,776       19,578
Investments, PP&E and intangible assets    11,541,779    11,029,525     41,709     325,911     9,614,144    10,145,422    28,964   358,265
Total non-current assets    12,429,766    11,284,892     43,352     344,918    10,595,005    10,270,198    28,964   377,843
Total Assets    14,678,538    11,385,869     65,367     423,872    13,541,541    10,338,277    40,310   440,050
                                 
Current Liabilities                                 
Borrowings and financing    735,231     142,073    5,497       767,992     228,769   4,041    
Lease liabilities   472,129      701       383,323        
Other current liabilities   1,682,928     150,268    5,777    14,326     1,513,799     157,946   4,063     40,473
Total current liabilities   2,890,288     292,341     11,975    14,326     2,665,114     386,715   8,104     40,473
 Non-current Liabilities                                 
Borrowings and financing    3,604,793   7,142,895     14,446       3,551,278   6,665,700    15,351    
Lease liabilities   1,928,931      630       1,718,366        
Other non-current liabilities   740,892   1,484,884    1,353    18,914     759,538     928,254       16,098
Total non-current liabilities   6,274,616   8,627,779     16,429    18,914     6,029,182   7,593,954    15,351     16,098
Shareholders’ equity   5,513,634   2,465,749     36,963     390,632     4,847,245   2,357,608    16,855   383,479
Total liabilities and shareholders’
equity		    14,678,538    11,385,869     65,367     423,872    13,541,541    10,338,277    40,310   440,050

 

 

                                 
    01/01/2022 to 12/31/2022   01/01/2021 to 12/31/2021
    Joint-Venture   Joint-Operation       Joint-Venture   Joint-Operation
  MRS Logística   Transnordestina Logística   Equimac S.A.   Itá Energética   MRS Logística   Transnordestina Logística   Equimac S.A.   Itá Energética
Equity interest (%)  37.27%   48.03%   50.00%   48.75%   37.27%   47.26%   50.00%   48.75%
Statements of Income                                
Net revenue   5,592,118     375    41,307     188,024    4,427,385     138    15,238     221,023
Cost of sales and services     (3,477,896)     (24,977)    (100,454)   (2,919,527)     (13,001)     (81,649)
Gross profit   2,114,222     375    16,330   87,570    1,507,858     138   2,237     139,374
Operating (expenses) income      (243,399)   (40,685)     (3,769)     (77,742)   (116,499)   (76,543)     (3,453)     (69,097)
Financial income (expenses), net     (641,862)   (21,551)     (3,211)     2,545   (345,513)   (20,651)       1,274
Income before income tax and social
contribution		   1,228,961   (61,861)   9,350   12,373    1,045,846   (97,056)     (1,216)   71,551
Current and deferred income tax
and social contribution		     (354,786)       (1,479)    (4,408)   (346,551)         (24,390)
Profit / (loss) for the year   874,175   (61,861)   7,871     7,965    699,295   (97,056)     (1,216)   47,161
Schedule of measurement of recoverable value
 
Cash flow projection By 2057
Gross margin Estimated based on market study to capture cargo and operating costs according to market trend studies
Cost estimate Study-based costs and market trends
Perpetuity growth rate Growth rate was not considered as a result of the projection model until the end of the concession
Discount rate Range from 5.32% to 6.99% in real terms.
Schedule of investment properties
           
            Consolidated
    Land   Buildings    Total
Balance at December 31, 2020   97,610   86,548     184,158
Cost   97,610   86,548     184,158
Accumulated depreciation         (24,284)     (24,284)
Balance at December 31, 2020   97,610   62,264     159,874
Depreciation (note 26)        (3,055)    (3,055)
Transfer of property, plant and equipment    4,065     1     4,066
Acquisition of Elizabeth         1,296     1,296
Transfers to other asset groups   (133)     133     
Balance at December 31, 2021    101,542   60,639     162,181
Cost    101,542   87,977     189,519
Accumulated depreciation         (27,338)     (27,338)
Balance at December 31, 2021    101,542   60,639     162,181
Depreciation (note 26)        (3,072)    (3,072)
Write-off     (29)         (29.00)
Balance at December 31, 2022    101,513   57,567     159,080
Cost    101,513   87,977     189,490
Accumulated depreciation         (30,410)     (30,410)
Balance at December 31, 2022    101,513   57,567     159,080
Schedule of average estimated useful life
     
      Consolidated
  12/31/2022   12/31/2021
Buildings 27   27