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Equity-accounted investees (Details 1) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Jan. 02, 2017 | Dec. 31, 2017 | Dec. 31, 2016
Abu Dhabi Fertilizer Industries WWL [Member] |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |
Description of the nature of the relationship |  |  | Distribution and commercialization of specialty plant nutrients in the Middle East. |
Domicile |  |  | PO Box 71871, Abu Dhabi |
Country of incorporation |  |  | United Arab Emirates |
Share of ownership in associates |  |  | 37.00% |
Dividends received |  |  | $ 0 | $ 0
Doktor Tarsa Tarim Sanayi AS [Member] |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |
Description of the nature of the relationship |  |  | Distribution and commercialization of specialty plant nutrients in Turkey. |
Domicile |  |  | Organize Sanayi Bolgesi, Ikinci Kisim, 22 cadde TR07100 Antalya |
Country of incorporation |  |  | Turkey |
Share of ownership in associates |  |  | 50.00% |
Dividends received |  |  | $ 0 | 0
Ajay North America [Member] |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |
Description of the nature of the relationship |  |  | Production and distribution of iodine derivatives. |
Domicile |  |  | 1400 Industry RD Power Springs GA 30129 |
Country of incorporation |  |  | United States |
Share of ownership in associates |  |  | 49.00% |
Dividends received |  |  | $ 1,123 | 2,605
Ajay Europe SARL [Member] |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |
Description of the nature of the relationship |  |  | Production and commercialization of iodine derivatives. |
Domicile |  |  | Z.I. du Grand Verger BP 227 53602 Evron Cedex |
Country of incorporation |  |  | France |
Share of ownership in associates |  |  | 50.00% |
Dividends received |  |  | $ 968 | 1,338
SQM Eastmed Turkey [Member] |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |
Description of the nature of the relationship |  |  | Production and commercialization of specialty products. |
Domicile |  |  | Organize Sanayi Bolgesi, Ikinci Kisim, 22 cadde TR07100 Antalya |
Country of incorporation |  |  | Turkey |
Share of ownership in associates |  |  | 50.00% |
Dividends received |  |  | $ 0 | 0
Charlee SQM Thailand Co. Ltd. [Member] |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |
Description of the nature of the relationship |  |  | Distribution and commercialization of specialty plant nutrients. |
Domicile |  |  | 31 Soi 138 (Meesuk) LLapdrawrd, Bangkapi, 10240 Bangkok |
Country of incorporation |  |  | Thailand |
Share of ownership in associates |  |  | 40.00% |
Dividends received |  |  | $ 0 | 0
Terra Tarsa B.V.. [Member] | Related Party of Doktor Tarsa Tarim Sanayi AS [Member] |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |
Description of the nature of the relationship | [1] |  | Distribution and trading of specialty plant nutrients. |
Domicile | [1] |  | Herikerbergweg 238, Luna Arena, 1101CM Amsterdam PO Box 23393, 1100DW Amsterdam Zuidoost |
Country of incorporation | [1] |  | Holland |
Share of ownership in associates | [1] |  | 50.00% |
Dividends received | [1] | $ 0 | $ 0 |
Plantacote N.V [Member] | Related Party of Doktor Tarsa Tarim Sanayi AS [Member] |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |
Description of the nature of the relationship | [1] |  | Sale of CRF and production and sales of WSNPK |
Domicile | [1] |  | Houtdok-Noordkaai 25a, 2030 Antwerpen, Belgium |
Country of incorporation | [1] |  | Belgium |
Share of ownership in associates | [1] |  | 100.00% |
Dividends received | [1] | 0 | $ 0 |
Doktolab Tarim Arastima San. Tic As [Member] | Related Party of Doktor Tarsa Tarim Sanayi AS [Member] |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |
Description of the nature of the relationship | [1] |  | Laboratory services |
Domicile | [1] |  | 27. Cd. No:2, 07190 Aosb 2. Kisim/Dösemealti, Antalya, Turkey |
Country of incorporation | [1] |  | Turkey |
Share of ownership in associates | [1] |  | 100.00% |
Dividends received | [1] | 0 | $ 0 |
Terra Tarsa Ukraine LLC [Member] | Related Party of Terra Tarsa B.V [Member] |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |
Description of the nature of the relationship | [2] |  | Distribution and trading of specialty plant nutrients. |
Domicile | [2] |  | 74800 Ukraine, Kakhovka, 4 Yuzhnaya Str. |
Country of incorporation | [2] |  | Ukraine |
Share of ownership in associates | [2] |  | 100.00% |
Dividends received | [2] | 0 | $ 0 |
Terra Tarsa Don LLC [Member] | Related Party of Terra Tarsa B.V [Member] |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |
Description of the nature of the relationship | [2] |  | Distribution and sale of specialty fertilizers |
Domicile | [2] |  | Zorge Street, house 17, 344090, Rostov-on-Don |
Country of incorporation | [2] |  | Russian Federation |
Share of ownership in associates | [2] |  | 100.00% |
Dividends received | [2] | $ 0 | $ 0 |
Kore Potash Ltd. [Member] |  |  |  |
Equity-accounted investees [Line Items] |  |  |  |
Description of the nature of the relationship |  |  | Prospecting, exploration and mining development. |
Domicile |  |  | L 3 88 William St Perth, was 6000 |
Country of incorporation |  |  | Australia |
Share of ownership in associates |  |  | 18.02% |
Dividends received |  |  | $ 0 | $ 0
[1] | Doktor Tarsa Tarim Sanayi AS
[2] | Terra Tarsa B.V.

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