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Identification and activities of the Company and Subsidiaries - Employees (Details) - employee | Dec. 31, 2022 | Dec. 31, 2021
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Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 6,997 | 6,081
In Chile |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 6,533 | 5,671
Outside Chile |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 464 | 410
Executives |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 160 | 136
Professionals |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 2,683 | 1,756
Technicians and operators |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 4,154 | 4,189
SQM S.A. |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 518 | 425
SQM S.A. | In Chile |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 518 | 425
SQM S.A. | Outside Chile |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 0 | 0
SQM S.A. | Executives |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 32 | 33
SQM S.A. | Professionals |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 177 | 117
SQM S.A. | Technicians and operators |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 309 | 275
Other subsidiaries |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 6,479 | 5,656
Other subsidiaries | In Chile |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 6,015 | 5,246
Other subsidiaries | Outside Chile |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 464 | 410
Other subsidiaries | Executives |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 128 | 103
Other subsidiaries | Professionals |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 2,506 | 1,639
Other subsidiaries | Technicians and operators |  |
Disclosure Of Information About Employees Explanatory [Line Items] |  |
Number of employees | 3,845 | 3,914

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