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Related-Party Balances and Transactions (Tables)
12 Months Ended
Dec. 31, 2024
Notes and other explanatory information [abstract]  
Schedule of loan agreement through credit facility
   
 

December 31, 2024

December 31, 2023

Accounts receivable    
Current:    
Sanitation services (ii) 173,466 169,515
Allowance for losses (51,706) (50,498)
Reimbursement for retirement and pension benefits paid (G0):    
- monthly flow (payments) (iii) and (iv) 84,973 36,241
- GESP Agreement – 2015 (vi)

112,813

106,022

     
Total current

319,546

261,280

     
Noncurrent:    
    Agreement for the installment payment of sanitation services 1,361 1,361
Reimbursement of additional retirement and pension benefits paid (G0):    
- GESP Agreement – 2015 (vi)

907,514

933,911

     
Total noncurrent

908,875

935,272

     
Total receivables

1,228,421

1,196,552

     
Assets:    
Sanitation services 123,121 120,378
Reimbursement of additional retirement and pension benefits (G0)

1,105,300

1,076,174

     
Total

1,228,421

1,196,552

     
Liabilities:    
Interest on capital payable 458,985 420,564
     
Schedule of loan agreement through credits facility
     
 

2024

2023

2022

       
Revenue from sanitation services 891,312 775,988 661,955
Payments received from related parties (843,026) (741,089) (632,501)
       
Payment received from reimbursement referring to Law 4,819/58 (178,941) (189,713) (186,690)