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Disclosures on equity - Other Reserves (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
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Disclosure of Disclosures on equity [Line Items] |  |  |
Total Other reserves | $ 11,663 | $ 13,103 | $ 16,318
SQM Iberian S.A. |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Total Other reserves | 9,464 | 9,464 | 9,464
SQM Europe NV |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Total Other reserves | 1,957 | 1,957 | 1,957
Soquimich European Holding B.V. |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Total Other reserves | 828 | 828 | 828
Abu Dhabi Fertilizer Industries WWL |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Total Other reserves | 0 | 455 | 455
Kore Potash PLC |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Total Other reserves | 0 | 0 | 3,414
Soquimich Comercial S.A. |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Total Other reserves | (401) | 0 | 0
SQM Vitas Fzco. |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Total Other reserves | 85 | (38) | (244)
Pavoni & C. Spa |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Total Other reserves | 7 | 7 | 0
SQM Iberian S.A. One |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Total Other reserves | (1,677) | (1,677) | (1,677)
Orcoma Estudios SPA |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Total Other reserves | 2,121 | 2,121 | 2,121
SQM Industrial S.A. |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Total Other reserves | 0 | 707 | 0
Others |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Total Other reserves | $ (721) | $ (721) | $ 0

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