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Joint Ventures (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Statement [Line Items] |  |  |  |
Dividends received |  | $ 3,164 | $ 3,851 | $ 10,612
Sichuan SQM Migao Chemical Fertilizers Co Ltda. [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Description of the nature of the relationship |  | Production and distribution of soluble fertilizers. |  |
Principal place of business of joint venture |  | Huangjing Road, Dawan Town, Qingbaijiang District, Chengdu Municipality, Sichuan Province |  |
Country of incorporation of joint venture |  | China |  |
Proportion of ownership interest in joint venture |  | 50.00% |  |
Dividends received |  | $ 0 | 0 | 0
Coromandel SQM India [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Description of the nature of the relationship |  | Production and distribution of potassium nitrate. |  |
Principal place of business of joint venture |  | 1-2-10, Sardar Patel Road, Secunderabad – 500003 Andhra Pradesh |  |
Country of incorporation of joint venture |  | India |  |
Proportion of ownership interest in joint venture |  | 50.00% |  |
Dividends received |  | $ 0 | 0 | 0
SQM Vitas Fzco. [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Description of the nature of the relationship |  | Production and commercialization of specialty plant, animal nutrition and industrial hygiene. |  |
Principal place of business of joint venture |  | Jebel ALI Free Zone P.O. Box 18222, Dubai |  |
Country of incorporation of joint venture |  | United Arab Emirates |  |
Proportion of ownership interest in joint venture |  | 50.00% |  |
Dividends received |  | $ 0 | 10,598 | 0
SQM Star Qingdao Corp Nutrition Co., Ltd. [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Description of the nature of the relationship |  | Production and distribution of nutrient plant solutions with specialties NPK soluble. |  |
Principal place of business of joint venture |  | Longquan Town, Jimo City, Qingdao Municipality, Shangdong Province |  |
Country of incorporation of joint venture |  | China |  |
Proportion of ownership interest in joint venture |  | 50.00% |  |
Dividends received |  | $ 0 | 0 | 0
SQM Vitas Holland B.V. [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Description of the nature of the relationship |  | Without information production of specialized fertilizers and other products for distribution in Italy and other countries. |  |
Principal place of business of joint venture |  | Herikerbergweg 238, 1101 CM Amsterdam Zuidoost |  |
Country of incorporation of joint venture |  | Holland |  |
Proportion of ownership interest in joint venture |  | 50.00% |  |
Dividends received |  | $ 0 | 0 | 0
SQM Vitas Brazil Agroindustria [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Description of the nature of the relationship | [1] | Production and trading of specialty vegetable and animal nutrition and industrial hygiene. |  |
Principal place of business of joint venture | [1] | Via Cndeias, Km. 01 Sem Numero, Lote 4, Bairro Cia Norte, Candeias, Bahia. |  |
Country of incorporation of joint venture | [1] | Brazil |  |
Proportion of ownership interest in joint venture | [1],[2] | 49.99% |  |
Dividends received | [1] | $ 0 | 0 | 0
SQM Vitas Peru S.A.C. [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Description of the nature of the relationship | [1] | Production and trading of specialty vegetable and animal nutrition and industrial hygiene |  |
Principal place of business of joint venture | [1] | Av. Juan de Arona 187, Torre B, Oficina 301-II, San Isidro, Lima |  |
Country of incorporation of joint venture | [1] | Peru |  |
Proportion of ownership interest in joint venture | [1],[2] | 50.00% |  |
Dividends received | [1] | $ 0 | 0 | 0
Pavoni C Spa [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Description of the nature of the relationship |  | products for distribution in Italy and other countries. |  |
Principal place of business of joint venture |  | Corso Italia 172, 95129 Catania (CT), Sicilia |  |
Country of incorporation of joint venture |  | Italy |  |
Proportion of ownership interest in joint venture |  | 50.00% |  |
Dividends received |  | $ 0 | 0 | 0
Covalent Lithium Pty Ltd [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Description of the nature of the relationship |  | Development and operation of the Mt Holland Lithium project, which will include the construction of a lithium extraction and refining mine |  |
Principal place of business of joint venture |  | L18, 109 St Georges Tce Perth WA 6000 |PO Box Z5200 St Georges Tce Perth WA 6831 |  |
Country of incorporation of joint venture |  | Australia |  |
Proportion of ownership interest in joint venture |  | 50.00% |  |
Dividends received |  | $ 0 | 0 | 0
Arpa Speciali SRL [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Description of the nature of the relationship | [3] | Production of specialty fertilizers and others for distribution in Italy and other countries. |  |
Principal place of business of joint venture | [3] | Mantova (MN) Via Cremona 27 Int. 25 |  |
Country of incorporation of joint venture | [3] | Italy |  |
Proportion of ownership interest in joint venture | [2],[3] | 50.48% |  |
Dividends received | [3] | $ 0 | 0 | 0
Dividends Received [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Dividends received |  | $ 2,223 | $ 10,598 | $ 0
[1] | SQM Vitas Fzco.
[2] | The percentages presented correspond to the ownership used in the consolidation of the company.
[3] | Pavoni & C. Spa.

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