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Investments in associates and joint venture - Statements of financial position of Tinka under IFRS (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of Investments in associates [Line Items] |  |  |  |
Current assets | $ 620,380 | $ 739,545 |  |
Non-current assets | 3,882,847 | 3,822,266 |  |
Current liabilities | (379,597) | (844,937) |  |
Equity | 3,162,941 | 2,538,531 | $ 2,799,857 | $ 2,968,200
Tinka resources Ltd |  |  |  |
Disclosure of Investments in associates [Line Items] |  |  |  |
Non-current assets | 50,454 | 50,461 |  |
Current liabilities | (473) | (211) |  |
Equity | 62,988 | 58,917 |  |
Adjustments to conform to the accounting policies of the Group | (7,719) | 1,042 |  |
Shareholders' equity, net, adjusted | $ 55,269 | $ 59,959 |  |

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- Definition The amount of assets that the entity (a) expects to realise or intends to sell or consume in its normal operating cycle; (b) holds primarily for the purpose of trading; (c) expects to realise within twelve months after the reporting period; or (d) classifies as cash or cash equivalents (as defined in IAS 7) unless the asset is restricted from being exchanged or used to settle a liability for at least twelve months after the reporting period. [Refer: Assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2022-03-24 -Paragraph B12 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_B12_b_i&doctype=Appendix&subtype=B -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 12 -IssueDate 2022-03-24 -Paragraph B10 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_B10_b&doctype=Appendix&subtype=B -URIDate 2022-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 66 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_66&doctype=Standard -URIDate 2022-03-24 + Details
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