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Background of companies included in consolidation | 12 Months Ended
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Dec. 31, 2018
Disclosure of Background of companies included in consolidation [Abstract] |
Background of companies included in consolidation [Text Block] |
| Note 6 | Background of companies included in consolidation
| 6.1 | Parent’s stand-alone assets and liabilities
|  | 12/31/2018 |  |  | 12/31/2017 |
|  | ThUS$ |  |  | ThUS$ |
Assets |  |  | 3,737,892 |  |  |  | 3,658,528 |
Liabilities |  |  | (1,652,401 | ) |  |  | (1,470,707 | )
Equity |  |  | 2,085,491 |  |  |  | 2,187,821 |
| 6 .2 | Parent entity
Pursuant to Article 99 of Law No. 18,045 of the Securities Market (the "Securities Market Law"), the Commission for Financial Market (the "CMF") may determine that a company does not have a controller in accordance with the distribution and dispersion of its ownership. On November 30, 2018, the CMF issued the ordinary letter No. 32.131 whereby it determined that Sociedad de Inversiones Pampa Calichera S.A., Potasios de Chile S.A. and Inversiones Global Mining (Chile) Limitada (the "Pampa Group"), do not exert decisive power over the management of the Company since it does not have a predominance in the ownership that allows it to make management decisions. Therefore, the CMF has determined not to consider Grupo Pampa the controller of the Company and that the Company does not have a controller given its current ownership structure.
| 6.3 | Background on non-controlling interests
Subsidiary |  | % of interests in the ownership held by non-controlling interests, |  |  | Profit (loss) attributable to non- controlling interests |  |  | Equity, non-controlling interests |  |  | Dividends paid to non- controlling interests |
|  |  |  |  | 12/31/2018 |  |  | 12/31/2017 |  |  | 12/31/2018 |  |  | 12/31/2017 |  |  | 12/31/2018 |  |  | 12/31/2017 |
|  |  |  |  | ThUS$ |  |  | ThUS$ |  |  | ThUS$ |  |  | ThUS$ |  |  | ThUS$ |  |  | ThUS$ |
Proinsa Ltda. |  |  | 0.1 | % |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
SQM Potasio S.A. |  |  | 0.0000001 | % |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Ajay SQM Chile S.A. |  |  | 49 | % |  |  | 1,176 |  |  |  | 1,023 |  |  |  | 8,659 |  |  |  | 8,306 |  |  |  | 823 |  |  |  | 989 |
SQM Indonesia S.A. |  |  | 20 | % |  |  | - |  |  |  | - |  |  |  | 1 |  |  |  | 1 |  |  |  | - |  |  |  | - |
Soquimich Comercial S.A. |  |  | 39.3616784 | % |  |  | 1,375 |  |  |  | 100 |  |  |  | 41,855 |  |  |  | 49,247 |  |  |  | 8,910 |  |  |  | 1,264 |
Comercial Agrorama Ltda. |  |  | 30 | % |  |  | (318 | ) |  |  | (403 | ) |  |  | (481 | ) |  |  | (184 | ) |  |  | - |  |  |  | - |
Agrorama S.A. |  |  | 0.001 | % |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Orcoma Estudios SPA |  |  | 49 | % |  |  | - |  |  |  | - |  |  |  | 2,277 |  |  |  | 2,277 |  |  |  | - |  |  |  | - |
SQM (Thailand) Limited. |  |  | 0.004 | % |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Total |  |  |  |  |  |  | 2,233 |  |  |  | 720 |  |  |  | 52,311 |  |  |  | 59,647 |  |  |  | 9,733 |  |  |  | 2,253 |

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