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Identification and activities of the Company and Subsidiaries - Main Shareholders of the Company (Details) - shares | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Inversiones TLC SpA |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding, ownership percentage | 21.90% | 21.90%
The Bank Of New York Mellon, ADRs |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding, ownership percentage | 14.91% | 16.17%
Sociedad De Inversiones Pampa Calichera S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding, ownership percentage | 15.23% | 15.49%
Potasios De Chile S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding, ownership percentage | 6.36% | 6.36%
Banco De Chile On Behalf Of State Street |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding, ownership percentage | 3.92% | 4.11%
AFP Habitat S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding, ownership percentage | 3.69% | 3.71%
Global Mining Spa |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding, ownership percentage | 3.08% | 3.08%
Banco Santander On Behalf Of Foreign Investors |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding, ownership percentage | 2.73% | 2.98%
AFP Provida S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding, ownership percentage | 2.86% | 2.91%
AFP Cuprum S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding, ownership percentage | 2.75% | 2.79%
AFP Capital S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding, ownership percentage | 2.77% | 2.63%
Banco De Chile On Behalf Of Citi NA New York |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding, ownership percentage |  | 2.24%
Inversiones TLC SpA |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Percentage of voting equity held by the Company or its subsidiaries | 21.90% | 21.90%
Banco De Chile On Behalf Of Non-Resident Third Parties |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares outstanding, ownership percentage | 1.76% |
Series A | Inversiones TLC SpA |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 62,556,568 | 62,556,568
Number of shares outstanding, ownership percentage | 43.80% | 4380.00%
Series A | The Bank Of New York Mellon, ADRs |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 0 | 0
Number of shares outstanding, ownership percentage | 0.00% | 0.00%
Series A | Sociedad De Inversiones Pampa Calichera S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 41,885,389 | 42,640,389
Number of shares outstanding, ownership percentage | 29.33% | 29.86%
Number of shares owned by the company or its subsidiaries or associates, in custody by stockholders (in shares) | 3,103,842 | 2,348,842
Series A | Potasios De Chile S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 18,179,147 | 18,179,147
Number of shares outstanding, ownership percentage | 12.73% | 12.73%
Series A | Banco De Chile On Behalf Of State Street |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 0 | 0
Number of shares outstanding, ownership percentage | 0.00% | 0.00%
Series A | AFP Habitat S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 614,872 | 603,789
Number of shares outstanding, ownership percentage | 0.43% | 0.42%
Series A | Global Mining Spa |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 8,798,539 | 8,798,539
Number of shares outstanding, ownership percentage | 6.16% | 6.16%
Series A | Banco Santander On Behalf Of Foreign Investors |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 0 | 0
Number of shares outstanding, ownership percentage | 0.00% | 0.00%
Series A | AFP Provida S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 0 | 0
Number of shares outstanding, ownership percentage | 0.00% | 0.00%
Series A | AFP Cuprum S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 0 | 0
Number of shares outstanding, ownership percentage | 0.00% | 0.00%
Series A | AFP Capital S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 0 | 0
Number of shares outstanding, ownership percentage | 0.00% | 0.00%
Series A | Banco De Chile On Behalf Of Citi NA New York |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) |  | 67,463
Number of shares outstanding, ownership percentage |  | 0.05%
Series A | Inversiones TLC SpA |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares owned by the company or its subsidiaries or associates (in shares) | 62,556,568 | 62,556,568
Series A | Banco De Chile On Behalf Of Non-Resident Third Parties |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 55,980 |
Number of shares outstanding, ownership percentage | 0.04% |
Series B | Inversiones TLC SpA |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 0 | 0
Number of shares outstanding, ownership percentage | 0.00% | 0.00%
Series B | The Bank Of New York Mellon, ADRs |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 42,599,351 | 46,174,681
Number of shares outstanding, ownership percentage | 29.83% | 32.33%
Series B | Sociedad De Inversiones Pampa Calichera S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 1,611,227 | 1,611,227
Number of shares outstanding, ownership percentage | 1.13% | 1.13%
Series B | Potasios De Chile S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 0 | 0
Number of shares outstanding, ownership percentage | 0.00% | 0.00%
Series B | Banco De Chile On Behalf Of State Street |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 11,210,700 | 11,744,230
Number of shares outstanding, ownership percentage | 7.85% | 8.22%
Series B | AFP Habitat S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 9,927,240 | 9,991,619
Number of shares outstanding, ownership percentage | 6.95% | 7.00%
Series B | Global Mining Spa |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 0 | 0
Number of shares outstanding, ownership percentage | 0.00% | 0.00%
Series B | Banco Santander On Behalf Of Foreign Investors |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 7,809,941 | 8,499,930
Number of shares outstanding, ownership percentage | 5.47% | 5.95%
Series B | AFP Provida S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 8,160,173 | 8,299,626
Number of shares outstanding, ownership percentage | 5.71% | 5.81%
Series B | AFP Cuprum S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 7,867,910 | 7,979,983
Number of shares outstanding, ownership percentage | 5.51% | 5.59%
Series B | AFP Capital S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 7,924,281 | 7,525,912
Number of shares outstanding, ownership percentage | 5.55% | 5.27%
Series B | Banco De Chile On Behalf Of Citi NA New York |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) |  | 6,339,986
Number of shares outstanding, ownership percentage |  | 4.44%
Series B | Inversiones TLC SpA |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares owned by the company or its subsidiaries or associates (in shares) | 748,490 | 748,490
Series B | Banco De Chile On Behalf Of Non-Resident Third Parties |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of outstanding shares (in shares) | 4,965,585 |
Number of shares outstanding, ownership percentage | 3.48% |
Series A and B stock | Sociedad De Inversiones Pampa Calichera S.A. |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Number of shares owned by the company or its subsidiaries or associates (in shares) | 46,600,458 | 46,600,458
Series A and B stock | Inversiones TLC SpA |  |
Identification and Activities of the Company and Subsidiaries [Line Items] |  |
Percentage of voting equity held by the Company or its subsidiaries | 22.16% | 22.16%

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