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Basis of preparation of the consolidated financial statements (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes and other explanatory information [abstract] |
Schedule of consolidated income statement |
Schedule of consolidated income statement |  |  |  |  |  |  |  |
| (As previously reported) |  | Adjustments |  | (Revised)
| 2023 | 2022 |  | 2023 | 2022 |  | 2023 | 2022
Cost of sales | (2,276,757) | (2,395,180) |  | 2,400 | 1,244 |  | (2,274,357) | (2,393,936)
Gross profit | 296,476 | 638,810 |  | 2,400 | 1,244 |  | 298,876 | 640,054
Operating expenses |  |  |  |  |  |  |  |
Selling, general and administrative | (126,948) | (145,543) |  | 349 | 373 |  | (126,599) | (145,170)
Mineral exploration and project evaluation | (99,666) | (98,862) |  | 54 | 61 |  | (99,612) | (98,801)
Total operating expenses | (451,841) | (279,591) |  | 403 | 434 |  | (451,438) | (279,157)
Operating (loss) income | (155,365) | 359,219 |  | 2,803 | 1,678 |  | (152,562) | 360,897
Net financial results |  |  |  |  |  |  |  |
Financial income | 25,503 | 25,018 |  | 290 | - |  | 25,793 | 25,018
Financial expenses | (204,184) | (168,694) |  | (5,707) | (1,084) |  | (209,891) | (169,778)
Total net financial results | (161,641) | (133,727) |  | (5,417) | (1,084) |  | (167,058) | (134,811)
Loss before income tax | (293,470) | 227,377 |  | (2,614) | 594 |  | (296,084) | 227,971
Income tax benefit (expense) | 4,274 | (150,983) |  | - | - |  | 4,274 | (150,983)
Net (loss) income for the year | (289,196) | 76,394 |  | (2,614) | 594 |  | (291,810) | 76,988
Attributable to NEXA's shareholders | (289,354) | 49,101 |  | (2,614) | 594 |  | (291,968) | 49,695
Attributable to non-controlling interests | 158 | 27,293 |  | - | - |  | 158 | 27,293
Net (loss) income for the year | (289,196) | 76,394 |  | (2,614) | 594 |  | (291,810) | 76,988
Weighted average number of outstanding shares – in thousands | 132,439 | 132,439 |  | - | - |  | 132,439 | 132,439
Basic and diluted loss per share – USD | (2.18) | 0.37 |  | (0.02) | 0.01 |  | (2.20) | 0.38
Schedule of consolidated balance sheet |
Schedule of consolidated balance sheet |  |  |  |  |
| (As previously reported) |  | Adjustments |  | (Revised)
| 2023 |  |  |  | 2023
Non-current assets |  |  |  |  |
Right-of-use assets | 11,228 |  | 63,590 |  | 74,818
Total non current assets | 3,780,681 |  | 63,590 |  | 3,844,271
Total assets | 4,840,507 |  | 63,590 |  | 4,904,097
Liabilities and shareholders’ equity |  |  |  |
Current liabilities |  |  |  |  |
Lease liabilities | 3,766 |  | 17,912 |  | 21,678
Total current liabilities | 1,074,882 |  | 17,912 |  | 1,092,794
Non-current liabilities |  |  |  |  |
Lease liabilities | 5,452 |  | 50,275 |  | 55,727
Total non current liabilities | 2,308,991 |  | 50,275 |  | 2,359,266
Total liabilities | 3,383,873 |  | 68,187 |  | 3,452,060
Shareholders’ equity |  |  |  |  |
Attributable to NEXA’s shareholders | 1,201,921 |  | (4,597) |  | 1,197,324
Attributable to non-controlling interests | 254,713 |  | - |  | 254,713
Total shareholders equity | 1,456,634 |  | (4,597) |  | 1,452,037
Total liabilities and shareholders’ equity | 4,840,507 |  | 63,590 |  | 4,904,097
Schedule of consolidated cash flow |
Schedule of consolidated cash flow |  |  |  |  |  |  |  |
| (As previously reported) |  | Adjustments |  | (Revised)
| 2023 | 2022 |  | 2023 | 2022 |  | 2023 | 2022
Loss before income tax | (293,470) | 227,377 |  | (2,614) | 594 |  | (296,084) | 227,971
Depreciation and amortization | 298,393 | 290,937 |  | 12,082 | 1,203 |  | 310,475 | 292,140
Interest and foreign exchange effects | 131,988 | 126,545 |  | 5,417 | 1,085 |  | 137,405 | 127,630
Cash provided by operating activities | 416,608 | 498,883 |  | 14,885 | 2,882 |  | 431,493 | 501,765
Interest paid on lease liabilities | (553) | (994) |  | (5,533) | (549) |  | (6,086) | (1,543)
Net cash provided by operating activities | 246,846 | 266,630 |  | 9,352 | 2,333 |  | 256,198 | 268,963
Payments of lease liabilities | (5,818) | (17,091) |  | (9,352) | (2,333) |  | (15,170) | (19,424)
Net cash used in financing activities | (25,284) | (149,234) |  | (9,352) | (2,333) |  | (34,636) | (151,567)
Increase (decrease) in cash and cash equivalents | (40,567) | (245,991) |  | - | - |  | (40,567) | (245,991)
Cash and cash equivalents at the beginning of the year | 497,826 | 743,817 |  | - | - |  | 497,826 | 743,817
Cash and cash equivalents at the end of the year | 457,259 | 497,826 |  | - | - |  | 457,259 | 497,826
Non-cash investing and financing transactions |  |  |  |  |  |  |  |
Additions to right-of-use assets | (10,304) | (2,018) |  | (58,124) | (432) |  | (68,428) | (2,450)
Schedule of consolidated earnings per share |
Schedule of consolidated earnings per share |  |  |  |  |  |  |  |
| (As previously reported) |  | Adjustments |  | (Revised)
| 2023 | 2022 |  | 2023 | 2022 |  | 2023 | 2022
Net (loss) income for the year attributable to NEXA's shareholders | (289,354) | 49,101 |  | (2,614) | 594 |  | (291,968) | 49,695
Weighted average number of outstanding shares – in thousands | 132,439 | 132,439 |  | - | - |  | 132,439 | 132,439
Earnings (losses) per share - USD | (2.18) | 0.37 |  | (0.02) | 0.01 |  | (2.20) | 0.38
Schedule of consolidated statement of comprehensive income |
Schedule of consolidated statement of comprehensive income |  |  |  |  |  |  |  |
| (As previously reported) |  | Adjustments |  | (Revised)
| 2023 | 2022 |  | 2023 | 2022 |  | 2023 | 2022
Net (loss) income for the year | (289,196) | 76,394 |  | (2,614) | 594 |  | (291,810) | 76,988
Translation adjustment of foreign subsidiaries | 81,315 | 65,243 |  | 98 | (783) |  | 81,413 | 64,460
Total Other comprehensive income (loss), net of income tax - items that can be reclassified to the income statement | 80,778 | 64,912 |  | 98 | (783) |  | 80,876 | 64,129
Other comprehensive income (loss) for the year, net of income tax | 78,927 | 61,647 |  | 98 | (783) |  | 79,025 | 60,864
Other comprehensive (loss) income for the year, net of income tax | (210,269) | 138,041 |  | (2,516) | (189) |  | (212,785) | 137,852
Attributable to NEXA’s shareholders | (215,324) | 105,972 |  | (2,516) | (189) |  | (217,840) | 105,783
Attributable to non-controlling interests | 5,055 | 32,069 |  | - | - |  | 5,055 | 32,069
Other comprehensive (loss) income for the year, net of income tax | (210,269) | 138,041 |  | (2,516) | (189) |  | (212,785) | 137,852
Schedule of consolidated statement of changes in shareholders equity |
Schedule of consolidated statement of changes in shareholders equity |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | (As previously reported) |  |  |  | Adjustments |  |  |  | (Revised)
| Retained earnings (cumulative deficit) | Accumulated other comprehensive income (loss) | Total NEXA’s shareholders | Total shareholders’ equity |  | Retained earnings (cumulative deficit) | Accumulated other comprehensive loss | Total NEXA’s shareholders | Total shareholders’ equity |  | Retained earnings (cumulative deficit) | Accumulated other comprehensive income (loss) | Total NEXA’s shareholders | Total shareholders’ equity
At January 1, 2022 | (746,308) | (289,030) | 1,386,273 | 1,644,280 |  | 1,130 | (3,022) | (1,892) | (1,892) |  | (745,178) | (292,052) | 1,384,381 | 1,642,388
Net loss for the year | 49,101 | - | 49,101 | 76,394 |  | 594 | - | 594 | 594 |  | 49,695 | - | 49,695 | 76,988
Other comprehensive income (loss) for the year | - | 56,871 | 56,871 | 61,647 |  | - | (783) | (783) | (783) |  | - | 56,088 | 56,088 | 60,864
Total comprehensive income (loss) for the year | 49,101 | 56,871 | 105,972 | 138,041 |  | 594 | (783) | (189) | (189) |  | 49,695 | 56,088 | 105,783 | 137,852
At December 31, 2022 | (741,081) | (232,159) | 1,442,245 | 1,710,254 |  | 1,724 | (3,805) | (2,081) | (2,081) |  | (739,357) | (235,964) | 1,440,164 | 1,708,173
|  |  | (As previously reported) |  |  |  | Adjustments |  |  |  | (Revised)
| Retained earnings (cumulative deficit) | Accumulated other comprehensive income (loss) | Total NEXA’s shareholders | Total shareholders’ equity |  | Retained earnings (cumulative deficit) | Accumulated other comprehensive income (loss) | Total NEXA’s shareholders | Total shareholders’ equity |  | Retained earnings (cumulative deficit) | Accumulated other comprehensive income (loss) | Total NEXA’s shareholders | Total shareholders’ equity
At January 1, 2023 | (741,081) | (232,159) | 1,442,245 | 1,710,254 |  | 1,724 | (3,805) | (2,081) | (2,081) |  | (739,357) | (235,964) | 1,440,164 | 1,708,173
Net loss for the year | (289,354) | - | (289,354) | (289,196) |  | (2,614) | - | (2,614) | (2,614) |  | (291,968) | - | (291,968) | (291,810)
Other comprehensive income (loss) for the year | - | 74,030 | 74,030 | 78,927 |  | - | 98 | 98 | 98 |  | - | 74,128 | 74,128 | 79,025
Total comprehensive (loss) income for the year | (289,354) | 74,030 | (215,324) | (210,269) |  | (2,614) | 98 | (2,516) | (2,516) |  | (291,968) | 74,128 | (217,840) | (212,785)
At December 31, 2023 | (1,030,435) | (158,129) | 1,201,921 | 1,456,634 |  | (890) | (3,707) | (4,597) | (4,597) |  | (1,031,325) | (161,836) | 1,197,324 | 1,452,037
Schedule of consolidated information by business segment |
Schedule of consolidated information by business segment |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  |  | 2023
|  | (As previously reported) |  |  | Adjustments |  |  | (Revised)
| Mining | Smelting | Consolidated |  | Mining | Smelting | Consolidated |  | Mining | Smelting | Consolidated
Cost of sales | (1,028,281) | (1,726,568) | (2,276,757) |  | 2,103 | 297 | 2,400 |  | (1,026,178) | (1,726,271) | (2,274,357)
Gross profit | 61,995 | 220,093 | 296,476 |  | 2,103 | 297 | 2,400 |  | 64,098 | 220,390 | 298,876
Selling, general and administrative | (61,903) | (61,233) | (126,948) |  | 213 | 136 | 349 |  | (61,690) | (61,097) | (126,599)
Mineral exploration and project evaluation | (90,297) | (9,369) | (99,666) |  | 59 | (5) | 54 |  | (90,238) | (9,374) | (99,612)
Operating (loss) income | (267,428) | 117,783 | (155,365) |  | 2,375 | 428 | 2,803 |  | (265,053) | 118,211 | (152,562)
Depreciation and amortization | 219,957 | 77,585 | 298,393 |  | 9,196 | 2,886 | 12,082 |  | 229,153 | 80,471 | 310,475
Adjusted EBITDA | 149,058 | 246,967 | 391,156 |  | 11,571 | 3,314 | 14,885 |  | 160,629 | 250,281 | 406,041
Depreciation and amortization |  |  | (298,393) |  |  |  | (12,082) |  |  |  | (310,475)
Net financial results |  |  | (161,641) |  |  |  | (5,417) |  |  |  | (167,058)
Loss before income tax |  |  | (293,470) |  |  |  | (2,614) |  |  |  | (296,084)
|  |  |  |  |  |  |  |  |  |  | 2022
|  | (As previously reported) |  |  | Adjustments |  |  | (Revised)
| Mining | Smelting | Consolidated |  | Mining | Smelting | Consolidated |  | Mining | Smelting | Consolidated
Cost of sales | (905,241) | (2,190,903) | (2,395,180) |  | 871 | 373 | 1,244 |  | (904,370) | (2,190,903) | (2,393,936)
Gross profit | 342,786 | 276,064 | 638,810 |  | 871 | 373 | 1,244 |  | 343,657 | 276,437 | 640,054
Selling, general and administrative | (64,444) | (60,435) | (145,543) |  | 225 | 148 | 373 |  | (64,219) | (60,287) | (145,170)
Mineral exploration and project evaluation | (88,947) | (9,915) | (98,862) |  | 80 | (19) | 61 |  | (88,867) | (9,934) | (98,801)
Operating income (loss) | 124,332 | 248,527 | 359,219 |  | 1,176 | 502 | 1,678 |  | 125,508 | 249,029 | 360,897
Depreciation and amortization | 204,514 | 78,727 | 290,937 |  | 2,026 | (823) | 1,203 |  | 206,540 | 77,904 | 292,140
Adjusted EBITDA | 439,839 | 326,429 | 760,324 |  | 3,202) | (321) | 2,881 |  | 443,041 | 326,108 | 763,205
Depreciation and amortization |  |  | (290,937) |  |  |  | (1,203) |  |  |  | (292,140)
Net financial results |  |  | (133,727) |  |  |  | (1,084) |  |  |  | (134,811)
Income before income tax |  |  | 227,377 |  |  |  | 594 |  |  |  | 227,971
Schedule of consolidated changes in right-of-use |
Schedule of consolidated changes in right-of-use |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  | (As previously reported) |  |  |  |  | Adjustments |  |  |  | (Revised)
|  |  |  | 2023 |  |  |  |  | 2023 |  |  |  | 2023
| Buildings | Machinery, equipment, and facilities | IT equipment | Vehicles | Total |  | Buildings | Machinery, equipment, and facilities | IT equipment | Vehicles | Total |  | Buildings | Machinery, equipment, and facilities | IT equipment | Vehicles | Total
Balance at the beginning of the year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost | 7,300 | 18,106 | 282 | 18,830 | 44,518 |  | 8,482 | 14,214 | 756 | (12,362) | 11,090 |  | 15,782 | 32,320 | 1,038 | 6,468 | 55,608
Accumulated amortization | (4,467) | (15,394) | (84) | (17,678) | (37,623) |  | 100 | (3,880) | (473) | 13,266 | 9,013 |  | (4,367) | (19,274) | (557) | (4,412) | (28,610)
Balance at the beginning of the year | 2,833 | 2,712 | 198 | 1,152 | 6,895 |  | 8,582 | 10,334 | 283 | 904 | 20,103 |  | 11,415 | 13,046 | 481 | 2,056 | 26,998
New contracts | 375 | 7,109 | 117 | 2,703 | 10,304 |  | 73 | 49,131 | - | 8,920 | 58,124 |  | 448 | 56,240 | 117 | 11,623 | 68,428
Disposals and write-offs | - | (874) | - | - | (874) |  | - | (6,500) | - | - | (6,500) |  | - | (7,374) | - | - | (7,374)
Amortization | (1,034) | (1,874) | (61) | (1,884) | (4,853) |  | (190) | (10,021) | (153) | (1,718) | (12,082) |  | (1,224) | (11,895) | (214) | (3,602) | (16,935)
Remeasurement | 197 | (275) | (120) | - | (198) |  | 795 | 422 | 86 | - | 1,303 |  | 992 | 147 | (34) | - | 1,105
Transfers | - | (114) | - | - | (114) |  | - | - | - | - | - |  | - | (114) | - | - | (114)
Foreign exchange effects | 17 | 45 | (1) | 7 | 68 |  | 710 | 1,705 | 18 | 209 | 2,642 |  | 727 | 1,750 | 17 | 216 | 2,710
Balance at the end of the year | 2,388 | 6,729 | 133 | 1,978 | 11,228 |  | 9,970 | 45,071 | 234 | 8,315 | 63,590 |  | 12,358 | 51,800 | 367 | 10,293 | 74,818
Cost | 6,278 | 16,079 | 317 | 22,766 | 45,440 |  | 10,049 | 59,553 | 747 | (4,227) | 66,122 |  | 16,327 | 75,632 | 1,064 | 18,539 | 111,562
Accumulated amortization | (3,890) | (9,350) | (184) | (20,788) | (34,212) |  | (79) | (14,482) | (513) | 12,542 | (2,532) |  | (3,969) | (23,832) | (697) | (8,246) | (36,744)
Balance at the end of the year | 2,388 | 6,729 | 133 | 1,978 | 11,228 |  | 9,970 | 45,071 | 234 | 8,315 | 63,590 |  | 12,358 | 51,800 | 367 | 10,293 | 74,818
Schedule of consolidated changes in lease liabilities |
Schedule of consolidated changes in lease liabilities |  |  |  |  |
| (As previously reported) |  | Adjustments |  | (Revised)
| 2023 |  |  |  | 2023
Balance at the beginning of the year | 5,021 |  | 22,184 |  | 27,205
New contracts | 10,304 |  | 58,124 |  | 68,428
Leasing contract and write-offs | - |  | (6,790) |  | (6,790)
Payments of lease liabilities | (5,818) |  | (9,352) |  | (15,170)
Interest paid on lease liabilities | (553) |  | (5,533) |  | (6,086)
Remeasurement | (198) |  | 1,303 |  | 1,105
Accrued interest– note 10 | 427 |  | 5,705 |  | 6,132
Foreign exchange effects | 35 |  | 2,546 |  | 2,581
Balance at the end of the year | 9,218 |  | 68,187 |  | 77,405
Current liabilities | 3,766 |  | 17,912 |  | 21,678
Non-current liabilities | 5,452 |  | 50,275 |  | 55,727

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