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Related party disclosures (Details) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Nitratos Naturais Do Chile Ltda. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Brazil |
Functional currency | Dollar |
Nature | Subsidiary |
Nitrate Corporation Of Chile Ltd. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | United Kingdom |
Functional currency | Dollar |
Nature | Subsidiary |
SQM North America Corp. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | United States |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Europe N.V. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Belgium |
Functional currency | Dollar |
Nature | Subsidiary |
Soquimich European Holding B.V. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Netherlands |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Corporation N.V. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Curacao |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Comercial De Mexico S.A. de C.V. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Mexico |
Functional currency | Dollar |
Nature | Subsidiary |
North American Trading Company [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | United States |
Functional currency | Dollar |
Nature | Subsidiary |
Administracion y Servicios Santiago S.A. de C.V. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Mexico |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Peru S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Peru |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Ecuador S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Ecuador |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Nitratos Mexico S.A. de C.V. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Mexico |
Functional currency | Dollar |
Nature | Subsidiary |
SQMC Holding Corporation L.L.P. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | United States |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Investment Corporation N.V. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Curacao |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Brasil Limitada [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Brazil |
Functional currency | Dollar |
Nature | Subsidiary |
SQM France S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | France |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Japan Co. Ltd. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Japan |
Functional currency | Dollar |
Nature | Subsidiary |
Royal Seed Trading Corporation A.V.V. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Aruba |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Oceania Pty Limited [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Australia |
Functional currency | Dollar |
Nature | Subsidiary |
Rs Agro-Chemical Trading Corporation A.V.V. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Aruba |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Indonesia S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Indonesia |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Virginia L.L.C. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | United States |
Functional currency | Dollar |
Nature | Subsidiary |
Comercial Caiman Internacional S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Panama |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Africa Pty Ltd. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | South Africa |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Colombia SAS [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Colombia |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Internacional NV [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Belgium |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Shanghai Chemicals Co Ltd [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | China |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Lithium Specialties LLC [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | United States |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Iberian S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Spain |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Beijing Commercial Co. Ltd. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | China |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Thailand Limited [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Thailand |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Australia PTY [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Australia |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Holland B.V. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Netherlands |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Korea LLC [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Korea |
Functional currency | Dollar |
Nature | Subsidiary |
Comercial Hydro S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 96.801.610-5 |
Country of origin | Chile |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Potasio S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 96.651.060-9 |
Country of origin | Chile |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Nitratos S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 96.592.190-7 |
Country of origin | Chile |
Functional currency | Dollar |
Nature | Subsidiary |
Ajay SQM Chile S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 96.592.180-K |
Country of origin | Chile |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Industrial S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 79.947.100-0 |
Country of origin | Chile |
Functional currency | Dollar |
Nature | Subsidiary |
Isapre Norte Grande Ltda. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 79.906.120-1 |
Country of origin | Chile |
Functional currency | Peso |
Nature | Subsidiary |
Almacenes y Depositos Ltda. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 79.876.080-7 |
Country of origin | Chile |
Functional currency | Peso |
Nature | Subsidiary |
Servicios Integrales de Transitos y Transferencias S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 79.770.780-5 |
Country of origin | Chile |
Functional currency | Dollar |
Nature | Subsidiary |
Soquimich Comercial S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 79.768.170-9 |
Country of origin | Chile |
Functional currency | Dollar |
Nature | Subsidiary |
SQM Salar S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 79.626.800-K |
Country of origin | Chile |
Functional currency | Dollar |
Nature | Subsidiary |
Sociedad Prestadora de Servicios de Salud Cruz del Norte S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 76.534.490-5 |
Country of origin | Chile |
Functional currency | Peso |
Nature | Subsidiary |
Exploraciones Mineras S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 76.425.380-9 |
Country of origin | Chile |
Functional currency | Dollar |
Nature | Subsidiary |
Comercial Agrorama Ltda. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 76.064.419-6 |
Country of origin | Chile |
Functional currency | Peso |
Nature | Subsidiary |
Agrorama S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 76.145.229-0 |
Country of origin | Chile |
Functional currency | Peso |
Nature | Subsidiary |
Orcoma Estudios SPA [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 76.359.919-1 |
Country of origin | Chile |
Functional currency | Dollar |
Nature | Subsidiary |
Orcoma SPA [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 76.360.575-2 |
Country of origin | Chile |
Functional currency | Dollar |
Nature | Subsidiary |
SQM MaG SpA. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 76.686.311-9 |
Country of origin | Chile |
Functional currency | Dollar |
Nature | Subsidiary |
Sociedad Contractual Minera Búfalo [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 77.114.779-8 |
Country of origin | Chile |
Functional currency | Dollar |
Nature | Subsidiary |
Abu Dhabi Fertilizer Industries Wwl [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | Foreign |
Country of origin | Arab Emirates |
Functional currency | Arab Emirates dirham |
Nature | Associate |
Ajay North America [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | United States |
Functional currency | Dollar |
Nature | Associate |
Ajay Europe SARL [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | Foreign |
Country of origin | France |
Functional currency | Euro |
Nature | Associate |
Kore Potash Ltd. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | United Kingdom |
Functional currency | Dollar |
Nature | Associate |
Sichuan SQM Migao Chemical Fertilizers Co Ltda. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | China |
Functional currency | Dollar |
Nature | Joint venture |
SQM Vitas Fzco. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | Foreign |
Country of origin | Arab Emirates |
Functional currency | Arab Emirates dirham |
Nature | Joint venture |
SQM Star Qingdao Corp Nutrition Co., Ltd. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | Foreign |
Country of origin | China |
Functional currency | Dollar |
Nature | Joint venture |
Covalent Lithium Pty Ltd [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | Foreign |
Country of origin | Australia |
Functional currency | Dollar |
Nature | Joint venture |
Pavoni & C, SPA [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | Foreign |
Country of origin | Italy |
Functional currency | Euro |
Nature | Joint venture |
Sociedad de Inversiones Pampa Calichera [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 96.511.530-7 |
Country of origin | Chile |
Functional currency | Dollar |
Nature | Other related parties |
Norte Grande S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 96.529.340-K |
Country of origin | Chile |
Functional currency | Peso |
Nature | Other related parties |
Callegari Agricola S.A. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | 79.049.778-9 |
Country of origin | Chile |
Functional currency | Peso |
Nature | Other related parties |
Sqm Vitas Brazil Agroindustria Foreign [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | Foreign |
Country of origin | Brazil |
Functional currency | Real brazilian |
Nature | Other related parties |
SQM Vitas Peru S.A.C. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | Foreign |
Country of origin | Peru |
Functional currency | Dollar |
Nature | Other related parties |
Abu Dhabi Fertilizer Industries WWL [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Oman |
Functional currency | United Arab Emirates dirham |
Nature | Other related parties |
International Technical and Trading Agencies CO WLL [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | foreign |
Country of origin | Jordan |
Functional currency | United Arab Emirates dirham |
Nature | Other related parties |
Ara Dos Primera del Salar de Pampa Blanca, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Ara Tres Primera del Salar de Pampa Blanca, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Ara Cuatro Primera del Salar de Pampa Blanca Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Ara Cinco Primera del Salar de Pampa Blanca, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Curicó Dos Primera del Salar de Pampa Alta, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Curicó Tres Primera del Sector de Pampa Alta, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Evelyn Veinticuatro Primera de Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Filomena Tres Primera de Oficina Filomena, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Filomena Cuatro Primera de Oficina Filomena, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Francis Cuatro Primera de Pampa Blanca, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Francis Cuatro Segunda del Salar de Pampa Blanca, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Francis Cuatro Tercera de Pampa Blanca, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Francis Cuatro Cuarta de Pampa Blanca, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Francis Cuatro Quinta de Pampa Blanca, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Francis Primera del Salar de Pampa Blanca de Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Francis Segunda del Salar de Pampa Blanca de Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Francis Tercera del Salar de Pampa Blanca de Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Ivon Primera de Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Ivon Décima Segunda de Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Ivon Sexta de Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Julia Primera de Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Lorena Trigésimo Quinta de Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Perseverancia Primera de Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Tamara 40 Primera del Sector S.E. OF. Concepción, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Tamara Tercera de Oficina Concepción, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties
Tamara 40 Segunda del Sector S.E. OF Concepción, Sierra Gorda [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID |  | N/A
Country of origin |  | Chile
Functional currency |  | Peso
Nature |  | Other related parties

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