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Other current and non-current non-financial assets (Parenthetical) (Details 4) - Chile - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 30, 2020
--- | --- | ---
Non Metalic Exploration [Member] |  |
Disclosure Of Detailed Information About Reimbursements For Exploration And Evaluation [Line Items] |  |
Reimbursements For Exploration And Evaluation | $ 5,622 | $ 6,576
Metallic exploration [Member] |  |
Disclosure Of Detailed Information About Reimbursements For Exploration And Evaluation [Line Items] |  |
Reimbursements For Exploration And Evaluation | $ 12,367 | $ 4,296

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