v3.26.1
Operating revenue (Tables)
12 Months Ended
Dec. 31, 2025
Operating Revenue  
Schedule of conciliation from gross operating income to net operating income
           
    2025   2024   2023
             
Revenue from sanitation services (i)   24,761,056   23,894,855   21,513,442
Construction revenue   14,437,363   6,225,871   5,600,332
FAUSP (a)   (966,169)   (395,179)   -
Financial asset of the concession (ii)   1,676,434   9,151,310   -
PIS and Cofins   (1,702,667)   (2,632,653)   (1,457,125)
Regulation, Control and Oversight Fee (TRCF) (iii)   (113,967)   (98,727)   (84,593)
Operating revenue   38,092,050   36,145,477   25,572,056

 

(i)Include R$ 122,655 referring to the TRCF charged from customers from January to December 2025 (R$ 117,878 from January to December 2024, respectively), in the municipalities regulated by ARSESP.
(ii)See Note 16.
(iii)Amount referring to regulatory, control, and oversight activities paid to regulatory authorities.