v3.26.1
EQUITY (Tables)
12 Months Ended
Dec. 31, 2025
Notes and other explanatory information [abstract]  
Schedule of ownership structure
                       
            12/31/2025           12/31/2024
    Number of common shares   % of total shares   % of voting capital   Number of common shares   % of total shares   % of voting capital
Vicunha Aços S.A. (*)   552,412,693   41.66%   41.66%   552,412,693   41.66%   41.66%
Rio Iaco Participações S.A. (*)   45,706,242   3.45%   3.45%   45,706,242   3.45%   3.45%
CFL Ana Participações S.A.   62,353,852   4.70%   4.70%   132,523,251   9.99%   9.99%
Avelina Participações S.A.   52,732,025   3.98%   3.98%        
NYSE (ADRs)   320,979,296   24.20%   24.20%   283,799,438   21.40%   21.40%
Other shareholders   291,909,839   22.01%   22.01%   311,652,323   23.50%   23.50%
Outstanding shares    1,326,093,947   100.00%   100.00%    1,326,093,947   100.00%   100.00%
(*) Controlling group companies.
Schedule of earning per share
       
  12/31/2025   12/31/2024 12/31/2023
     
Loss for the period  (2,002,374)    (2,591,851)  (318,206)
Weighted average number of shares 1,326,093,947   1,326,093,947  1,326,093,947
Basic and diluted loss per share (1.50998)   (1.95450)  (0.23996)