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Related party disclosures (Details 2) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | 96,529,340-k |  | Oman |
Nature |  | Joint venture |  | Joint venture |
Country of origin |  | Jordan | [1] | United States |
Currency |  | CLP |  | Turkish Lira | [2]
Current receivables due from related parties |  | $ 44,554 |  | $ 59,132 |
Charlee SQM Thailand Co. Ltd. [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID | [3],[4] | Foreign |  |  |
Nature | [4] | Associate | [3] | Associate |
Country of origin | [4] | Thailand | [3] | Thailand |
Currency | [4] | Thai baht |  | Thai baht |
Current receivables due from related parties |  | $ 0 |  | $ 1,204 |
Ajay Europe SARL [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | Foreign |  |  |
Nature |  | Associate |  |  |
Country of origin |  | France |  |  |
Currency |  | Euro |  |  |
Current receivables due from related parties |  | $ 3,756 |  | 4,689 |
Ajay North America LLC. [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | Foreign |  |  |
Nature |  | Associate |  |  |
Country of origin |  | United States |  |  |
Currency |  | US$ |  |  |
Current receivables due from related parties |  | $ 2,079 |  | 2,005 |
Abu Dhabi Fertilizer Industries WWL [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | Foreign |  |  |
Nature |  | Associate |  |  |
Country of origin |  | United Arab Emirates |  |  |
Currency |  | Arab Emirates dirham |  |  |
Current receivables due from related parties |  | $ 857 |  | 73 |
Kowa Company Ltd. [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID | [5] | Foreign |  |  |
Nature | [5] | Other related parties |  |  |
Country of origin | [5] | Japan |  |  |
Currency |  | US$ |  |  |
Current receivables due from related parties |  | $ 0 |  | 5,008 |
Soc.de Inversiones Pampa Calichera [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | 96.511.530-7 |  |  |
Nature |  | Jointly controlled entity |  |  |
Country of origin |  | Chile |  |  |
Currency |  | US$ |  |  |
Current receivables due from related parties |  | $ 6 |  | 6 |
SQM Vitas Brazil Agroindustria [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | Foreign |  |  |
Nature |  | Joint venture |  |  |
Country of origin |  | Brazil |  |  |
Currency |  | US$ |  |  |
Current receivables due from related parties |  | $ 15,818 |  | 17,293 |
SQM Vitas Peru S.A.C. [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | Foreign |  |  |
Nature |  | Joint control or significant influence |  |  |
Country of origin |  | Peru |  |  |
Currency |  | US$ |  |  |
Current receivables due from related parties |  | $ 12,768 |  | 13,766 |
Coromandel SQM India [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | Foreign |  |  |
Nature |  | Joint venture |  |  |
Country of origin |  | India |  |  |
Currency |  | Indian rupee |  |  |
Current receivables due from related parties |  | $ 2,025 |  | 3,804 |
Sichuan SQM Migao Chemical Fertilizers Co Ltda. [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | Foreign |  |  |
Nature |  | Joint venture |  |  |
Country of origin |  | China |  |  |
Currency |  | Emirates dirham |  |  |
Current receivables due from related parties |  | $ 105 |  | 0 |
SQM Vitas Fzco. [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | Foreign |  |  |
Nature |  | Joint venture |  |  |
Country of origin |  | United Arab Emirates |  |  |
Currency |  | US$ |  |  |
Current receivables due from related parties |  | $ 248 |  | 50 |
SQM Vitas Plantacote B.V [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | Foreign |  |  |
Nature |  | Joint venture |  |  |
Country of origin |  | Netherlands |  |  |
Currency |  | Euro |  |  |
Current receivables due from related parties |  | $ 312 |  | 190 |
SQM Star Qingdao Corp Nutrition Co., Ltd. [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | Foreign |  |  |
Nature |  | Joint venture |  |  |
Country of origin |  | China |  |  |
Currency |  | Russian ruble |  |  |
Current receivables due from related parties |  | $ 41 |  | 44 |
Plantacote N.V [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | Foreign |  |  |
Nature |  | Associate |  |  |
Country of origin |  | Belgium |  |  |
Currency |  | US$ |  |  |
Current receivables due from related parties |  | $ 0 |  | 11,000 |
Terra Tarsa Don LLC [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | Foreign |  |  |
Nature |  | Associate |  |  |
Country of origin |  | Russian Federation |  |  |
Currency |  | Euro |  |  |
Current receivables due from related parties |  | $ 30 |  |  |
Minera Exar S.A. [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID | [6],[7] | Foreign |  |  |
Nature | [6],[7] | Joint venture |  |  |
Country of origin | [6] | Argentina |  |  |
Currency | [6] | US$ |  |  |
Current receivables due from related parties |  | $ 19,500 |  | 0 |
SQM Eastmed Turkey [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | Foreign |  |  |
Nature |  | Associate |  |  |
Country of origin |  | Turkey |  |  |
Current receivables due from related parties |  |  |  | 0 |
Pavoni And C Spa [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Tax ID |  | Foreing |  |  |
Nature |  | Joint venture |  |  |
Country of origin |  | Italy |  |  |
Currency |  | Euro |  |  |
Current receivables due from related parties |  | $ 12 |  | $ 0 |
[1] | These Companies are subsidiaries of the joint venture Abu Dhabi Fertilizer Industries WWL
[2] | These Companies are subsidiaries of the associate Doktor Tarsa Tarim Sanayi AS.
[3] | As of November 2018, the ownership interest in Charlee SQM Thailand Co. Ltd. was sold.
[4] | During the month of November 2018, the stake held in Charlee SQM Thailand Co. Ltd. was sold.
[5] | As of December 31, 2018, Kowa Company Ltd. is not considered a related party.
[6] | During the month of December 2018, the stake held in Minera Exar S.A.
[7] | During the month of December 2018, the stake held in Minera Exar S.A. was sold.

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