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v3.26.1

Shareholders’ equity (Details Narrative) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |  |  |  |  |  | 1 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2025 | Jul. 17, 2025 | Apr. 30, 2025 | Mar. 28, 2025 | Mar. 08, 2025 | Jan. 31, 2025 | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 19, 2025 | Nov. 30, 2025 | Aug. 31, 2025 | Jun. 30, 2025 | Jan. 15, 2025
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Capital |  |  |  |  |  |  | $ 132,438 | $ 132,438 |  |  |  |  |
Capital, shares |  |  |  |  |  |  | 132,438 | 132,438 |  |  |  |  |
Par value ($ per share) |  |  |  |  |  |  | $ 1.00 |  |  |  |  |  |
Authorized, but unissued and unsubscribed share capital |  |  |  |  |  |  | $ 231,925 |  |  |  |  |  |
Payment of dividend |  |  |  |  |  |  | 26,918 | $ 3,707 |  |  |  |  |
Non-controlling interests |  |  |  |  |  |  | $ 286,629 | $ 246,363 |  |  |  |  |
Dividends liquidate rate |  |  |  |  |  |  | 100.00% |  |  |  |  |  |
Recorded in equity |  |  |  |  |  |  | $ 502 |  |  |  |  |  |
Retained earnings attributable to the controlling interest |  |  |  |  |  |  | 492 |  |  |  |  |  |
Non-controlling interest |  |  |  |  |  |  | $ 10 |  |  |  |  |  |
Nexa El Porvenir [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares acquired, value |  |  |  |  |  |  |  |  |  |  |  |  | 3,453
Number of shares acquired |  |  |  |  |  |  |  |  |  |  |  |  | 1,864
Ownership interest |  | 82.11% |  |  |  |  | 0.89% |  |  |  |  |  |
Recognized a gain equity attributable |  |  |  |  |  |  | $ 1,005 |  |  |  |  |  |
Recognized a gain equity attributable |  |  |  |  |  |  | 1,016 |  |  |  |  |  |
Shares were acquired, value |  |  |  |  |  |  | $ 502 |  |  |  |  |  |
Nexa Atacocha [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest |  | 17.89% |  |  |  | 86.65% |  | 82.11% |  |  |  |  |
Nexa Atacocha [Member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest |  |  |  |  |  |  | 82.11% |  |  |  |  |  |
Ownership interest non controlling |  |  |  |  |  |  | 17.00% |  |  |  |  |  |
Nexa Atacocha [Member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest |  |  |  |  |  |  | 83.00% |  |  |  |  |  |
Ownership interest non controlling |  |  |  |  |  |  | 17.89% |  |  |  |  |  |
Nexa [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends to non-controlling interests |  |  |  | $ 17,389 | $ 13,400 |  |  |  |  |  |  |  |
Nexa Peru [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends to non-controlling interests |  |  |  |  |  |  | $ 359 |  |  |  |  |  |
Payment of dividend |  |  |  | 100,000 |  |  |  |  |  |  |  |  |
Shareholder [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of dividend |  |  |  | 50,000 |  |  |  |  |  |  |  |  |
Nexa C J M [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends to non-controlling interests | $ 8,103 |  | $ 8,717 | 179 |  |  |  |  |  |  |  |  |
Payment of dividend |  |  |  | $ 82,432 |  |  |  |  |  |  |  |  |
Pollarix S A [Member] | U S D [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends to non-controlling interests |  |  |  |  |  |  | 17,088 |  |  |  |  |  |
Payment of dividend |  |  |  |  |  |  | 50,231 |  |  |  |  |  |
Dividends comprising |  |  |  |  |  |  | 10,332 |  |  |  |  |  |
Non-controlling interests |  |  |  |  |  |  | 24,853 |  |  |  |  |  |
Pollarix S A [Member] | B R L [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends to non-controlling interests |  |  |  |  |  |  | 93,726 |  |  |  |  |  |
Payment of dividend |  |  |  |  |  |  | 275,668 |  |  |  |  |  |
Dividends comprising |  |  |  |  |  |  | 56,713 |  |  |  |  |  |
Non-controlling interests |  |  |  |  |  |  | 133,344 |  |  |  |  |  |
Nexa B R [Member] | U S D [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends comprising |  |  |  |  |  |  | 39,899 |  |  |  |  |  |
Nexa B R [Member] | B R L [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends comprising |  |  |  |  |  |  | 218,975 |  |  |  |  |  |
Subsidiary Pollarix S A [Member] | U S D [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of dividend |  |  |  |  |  |  | 23,836 |  |  | $ 7,675 | $ 6,061 | $ 10,099 |
Other receive amount |  |  | 20,370 |  |  |  |  |  | $ 3,465 |  |  |  |
Subsidiary Pollarix S A [Member] | B R L [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of dividend |  |  |  |  |  |  | $ 132,415 |  |  | $ 42,642 | $ 33,665 | $ 56,108 |
Other receive amount |  |  | $ 112,216 |  |  |  |  |  | $ 20,199 |  |  |  |

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