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Cash and cash equivalents (Tables)
9 Months Ended
Sep. 30, 2025
Cash and cash equivalents [abstract]  
Schedule of cash and cash equivalents
Average yield p.a. %09/30/202512/31/2024
Cash and banks (1)
4.43%12,304,105 6,596,510 
 
Cash equivalents 
Local currency 
Fixed-term deposits (compromised) 101.80% of CDI1,121,685 2,422,308 
Foreign currency
Fixed-term deposits (2)
4.99%2,413,076  
15,838,866 9,018,818