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Costs and expenses by nature (Tables)
 12 Months Ended
Dec. 31, 2022
Costs And Expenses By Nature  
Schedule of cost of goods sold and services rendered
           
    Year ended December 31,
    2022   2021   2020
Freight (i)   4,738   4,575   3,439
Materials and services (ii)   3,632   2,907   2,782
Maintenance   3,105   2,812   2,529
Depreciation, depletion and amortization   3,049   2,857   2,961
Acquisition of products (ii)   2,566   2,277   946
Personnel   1,817   1,703   1,624
Fuel oil and gas (iii)   1,630   1,011   848
Royalties   1,268   1,370   845
Energy   719   639   673
Other   1,504   1,578   917
Total   24,028   21,729   17,564
             
Cost of goods sold   23,447   21,142   16,982
Cost of services rendered   581   587   582
Total   24,028   21,729   17,564

 

(i) In 2021, the increase, among other factors, is due to higher volumes sold in CFR sales and higher international freight reference price.
(ii) In 2021, the increase, among other factors, is due to the significant increase in the iron ore reference price.
(iii) In 2022, the increase, among other factors, is due to higher fuel prices and inflation of other inputs and services.
Schedule of selling and administrative expenses
           
    Year ended December 31,
    2022   2021   2020
Personnel   185   170   168
Services   124   107   114
Selling   86   80   81
Depreciation and amortization   41   42   49
Advertisement   22   27   17
Other   57   55   62
Total   515   481   491
Schedule of other operating expenses, net
           
    Year ended December 31,
  Notes 2022   2021   2020
Expenses related to Brumadinho event 24 1,079   851   4,640
Expenses related to de-characterization of dam 26(a) 72   1,725   617
Asset retirement obligations 26(b) 23   121   312
Provision for litigations 28 153   98   73
Profit sharing program   131   126   169
Disposals of materials and inventories   46   5   19
COVID-19 expenses (i)   -   44   109
Other   218   6   118
Total   1,722   2,976   6,057
(i) The Company assisted the communities where the Company operates through humanitarian aid programs, especially in the Brazilian communities that were more adversely affected by the pandemic. The resources were used to provide needed support such as medical supplies and equipment.