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Background of companies included in consolidation (Tables)
12 Months Ended
Dec. 31, 2018
Disclosure of Background of companies included in consolidation [Abstract]  
Disclosure of Parent's stand-alone assets and liabilities [Text Block]
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
 
Disclosure of Information attributable to non-controlling interests [Text Block]
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