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v3.25.1

Operating costs and expenses | 12 Months Ended
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Dec. 31, 2024
Notes and other explanatory information [abstract] |
Operating costs and expenses |
| 31 | Operating costs and expenses
Schedule of operating costs and expenses |  |  |
| 2024 | 2023 | 2022
Operating costs |  |  |
Salaries, payroll charges and benefits | (2,357,526) | (2,717,005) | (2,285,765)
Pension plan obligations | (23,704) | (36,998) | (29,796)
Construction costs (Note 28) | (6,085,895) | (5,474,729) | (4,754,383)
General supplies | (345,771) | (356,481) | (369,381)
Treatment supplies | (577,639) | (558,557) | (598,993)
Outsourced services | (1,915,851) | (1,843,213) | (1,724,347)
Electricity | (1,573,067) | (1,514,542) | (1,497,644)
General expenses | (1,246,474) | (967,148) | (831,503)
Depreciation and amortization | (2,477,146) | (2,583,193) | (2,259,091)
| (16,603,073) | (16,051,866) | (14,350,903)
Selling expenses |  |  |
Salaries, payroll charges and benefits | (335,382) | (347,536) | (306,864)
Pension plan obligations | (3,825) | (3,359) | (4,021)
General supplies | (4,679) | (6,746) | (7,121)
Outsourced services | (423,964) | (439,995) | (418,632)
Electricity | (658) | (673) | (1,001)
General expenses | (98,800) | (116,933) | (107,313)
Depreciation and amortization | (50,281) | (68,818) | (67,015)
| (917,589) | (984,060) | (911,967)
Bad debt expense, net of recoveries (Note 10 (c)) | (557,789) | (652,920) | (782,057)
Administrative expenses |  |  |
Salaries, payroll charges and benefits | (602,217) | (423,948) | (284,562)
Pension plan obligations | (78,428) | (122,248) | (84,670)
General supplies | (108,901) | (23,008) | (23,664)
Outsourced services | (391,637) | (287,744) | (250,293)
Electricity | (1,297) | (2,020) | (1,896)
General expenses | (898,587) | (509,984) | (548,626)
Depreciation and amortization | (149,215) | (138,575) | (124,743)
Tax expenses | (81,156) | (90,021) | (80,053)
| (2,311,438) | (1,597,548) | (1,398,507)
Operating costs and expenses |  |  |
Salaries, payroll charges and benefits | (3,295,125) | (3,488,489) | (2,877,191)
Pension plan obligations (Note 24 (v)) | (105,957) | (162,605) | (118,487)
Construction costs (Note 28) | (6,085,895) | (5,474,729) | (4,754,383)
General supplies | (459,351) | (386,235) | (400,166)
Treatment supplies | (577,639) | (558,557) | (598,993)
Outsourced services | (2,731,452) | (2,570,952) | (2,393,272)
Electricity | (1,575,022) | (1,517,235) | (1,500,541)
General expenses | (2,243,861) | (1,594,065) | (1,487,442)
Depreciation and amortization | (2,676,642) | (2,790,586) | (2,450,849)
Tax expenses | (81,156) | (90,021) | (80,053)
Bad debt expense, net of recoveries (Note 10 (c)) | (557,789) | (652,920) | (782,057)
| (20,389,889) | (19,286,394) | (17,443,434)

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