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Gains (losses) from operating activities in the statement of income by function of expenses, included according to their nature (Tables)
12 Months Ended
Dec. 31, 2018
Disclosure Of Revenue From Products and Services [Abstract]  
Disclosure of disaggregation of revenue from contracts with customers [text block]
The Group derives revenues from the sale of goods (which are recognised at one point in time) and from the provision of services (which are recognised over time) and are distributed among the following geographical areas and main product and service lines:
 
12/31/2018
 
Geographic areas
 
Specialty plant nutrition
 
 
Iodine and derivatives
 
 
Lithium and derivatives
 
 
Potassium
 
 
Industrial chemicals
 
 
Other
 
 
Total
ThUS$
 
Chile
 
 
111,595
 
 
 
1,052
 
 
 
700
 
 
 
25,593
 
 
 
4,575
 
 
 
45,834
 
 
 
189,349
 
Latin America and the Caribbean
 
 
77,737
 
 
 
6,390
 
 
 
3,596
 
 
 
80,192
 
 
 
12,097
 
 
 
177
 
 
 
180,189
 
Europe
 
 
200,229
 
 
 
112,080
 
 
 
103,430
 
 
 
46,068
 
 
 
17,384
 
 
 
473
 
 
 
479,664
 
North America
 
 
240,995
 
 
 
83,587
 
 
 
68,254
 
 
 
50,685
 
 
 
27,347
 
 
 
647
 
 
 
471,515
 
Asia and Others
 
 
151,194
 
 
 
121,863
 
 
 
558,821
 
 
 
64,936
 
 
 
46,865
 
 
 
1,407
 
 
 
945,086
 
Total
 
 
781,750
 
 
 
324,972
 
 
 
734,801
 
 
 
267,474
 
 
 
108,268
 
 
 
48,538
 
 
 
2,265,803
 
 
12/31/2017
 
Geographic areas
 
Specialty plant nutrition
 
 
Iodine and derivatives
 
 
Lithium and derivatives
 
 
Potassium
 
 
Industrial chemicals
 
 
Other
 
 
Total
ThUS$
 
Chile
 
 
91,243
 
 
 
1,054
 
 
 
802
 
 
 
20,001
 
 
 
2,522
 
 
 
45,942
 
 
 
161,564
 
Latin America and the Caribbean
 
 
71,335
 
 
 
5,756
 
 
 
3,109
 
 
 
142,610
 
 
 
9,180
 
 
 
155
 
 
 
232,145
 
Europe
 
 
177,997
 
 
 
81,557
 
 
 
88,443
 
 
 
72,405
 
 
 
28,346
 
 
 
305
 
 
 
449,053
 
North America
 
 
235,963
 
 
 
67,491
 
 
 
42,918
 
 
 
69,105
 
 
 
25,824
 
 
 
553
 
 
 
441,854
 
Asia and Others
 
 
120,713
 
 
 
96,265
 
 
 
509,301
 
 
 
75,205
 
 
 
69,706
 
 
 
1,517
 
 
 
872,707
 
Total
 
 
697,251
 
 
 
252,123
 
 
 
644,573
 
 
 
379,326
 
 
 
135,578
 
 
 
48,472
 
 
 
2,157,323
 
 
12/31/2016
 
Geographic areas
 
Specialty plant nutrition
 
 
Iodine and derivatives
 
 
Lithium and derivatives
 
 
Potassium
 
 
Industrial chemicals
 
 
Other
 
 
Total
ThUS$
 
Chile
 
 
102,804
 
 
 
1,319
 
 
 
500
 
 
 
18,940
 
 
 
3,398
 
 
 
60,108
 
 
 
187,069
 
Latin America and the Caribbean
 
 
69,805
 
 
 
6,136
 
 
 
3,002
 
 
 
154,012
 
 
 
9,194
 
 
 
223
 
 
 
242,372
 
Europe
 
 
116,863
 
 
 
86,095
 
 
 
77,850
 
 
 
82,040
 
 
 
14,391
 
 
 
887
 
 
 
378,126
 
North America
 
 
211,954
 
 
 
63,193
 
 
 
41,226
 
 
 
81,043
 
 
 
24,485
 
 
 
337
 
 
 
422,238
 
Asia and Others
 
 
122,427
 
 
 
74,401
 
 
 
392,049
 
 
 
67,288
 
 
 
52,669
 
 
 
683
 
 
 
709,517
 
Total
 
 
623,853
 
 
 
231,144
 
 
 
514,627
 
 
 
403,323
 
 
 
104,137
 
 
 
62,238
 
 
 
1,939,322
 
Disclosure Of Revenue By Products Text Block [Text Block]
a)
 
b) Main product lines:
 
 
 
January to December
 
 
 
2018
 
 
2017
 
 
2016
 
Products and Services
 
ThUS$
 
 
ThUS$
 
 
ThUS$
 
Specialty plant nutrition
 
 
781,750
 
 
 
697,251
 
 
 
623,853
 
Sodium Nitrates
 
 
17,688
 
 
 
18,555
 
 
 
16,891
 
Potassium nitrate and sodium potassium nitrate
 
 
527,945
 
 
 
474,451
 
 
 
390,964
 
Specialty Blends
 
 
145,512
 
 
 
121,263
 
 
 
129,943
 
Other specialty fertilizers
 
 
90,605
 
 
 
82,982
 
 
 
86,055
 
Iodine and derivatives
 
 
324,972
 
 
 
252,123
 
 
 
231,144
 
Lithium and derivatives
 
 
734,801
 
 
 
644,573
 
 
 
514,627
 
Potassium
 
 
267,474
 
 
 
379,326
 
 
 
403,323
 
Industrial chemicals
 
 
108,268
 
 
 
135,578
 
 
 
104,137
 
Other
 
 
48,538
 
 
 
48,472
 
 
 
62,238
 
Commodities
 
 
18,582
 
 
 
11,822
 
 
 
19,842
 
Other ordinary income Commercial Offices
 
 
24,465
 
 
 
32,784
 
 
 
37,068
 
Income from services rendered and others
Other
 
 
 
 
 
 
 
 
 
 
 
 
Income from the provision of services
 
 
4,017
 
 
 
3,795
 
 
 
4,122
 
Income from leasing properties
 
 
1,474
 
 
 
71
 
 
 
1,205
 
Total
 
 
2,265,803
 
 
 
2,157,323
 
 
 
1,939,322
 
Disclosure of cost of sales [text block]
25.2
Cost of sales
 
 
 
12/31/2018
 
 
12/31/2017
 
 
12/31/2016
 
 
 
ThUS$
 
 
ThUS$
 
 
ThUS$
 
Raw materials and consumables used
 
 
(260,863
)
 
 
(227,620
)
 
 
(208,697
)
Classes of employee benefit expenses
 
 
(203,569
)
 
 
(172,084
)
 
 
(162,335
)
Depreciation expense
 
 
(212,582
)
 
 
(232,275
)
 
 
(271,128
)
Amortization expense
 
 
(7,194
)
 
 
(8,153
)
 
 
(12,438
)
Operating leases
 
 
(75,395
)
 
 
(80,160
)
 
 
(71,548
)
Investment plan expenses
 
 
(13,384
)
 
 
(17,180
)
 
 
(17,697
)
Contractors
 
 
(78,825
)
 
 
(72,348
)
 
 
(66,051
)
Mining concessions
 
 
(8,168
)
 
 
(7,802
)
 
 
(7,313
)
Operations transport
 
 
(64,352
)
 
 
(69,052
)
 
 
(59,399
)
Freight and product transport costs
 
 
(43,510
)
 
 
(55,383
)
 
 
(64,857
)
Purchase of products from third parties
 
 
(239,781
)
 
 
(208,147
)
 
 
(211,928
)
Insurance
 
 
(9,816
)
 
 
(10,255
)
 
 
(12,033
)
CORFO rights
 
 
(182,954
)
 
 
(46,274
)
 
 
(41,962
)
Export costs
 
 
(84,816
)
 
 
(83,057
)
 
 
(105,307
)
Variation in inventory
 
 
11,600
 
 
 
(90,998
)
 
 
(10,774
)
Other expenses, by nature
 
 
(9,915
)
 
 
(14,034
)
 
 
(4,818
)
Total
 
 
(1,483,524
)
 
 
(1,394,822
)
 
 
(1,328,285
)
Disclosure of detailed information about other income [Text Block]
25.3
Other income
 
 
 
12/31/2018
 
 
12/31/2017
 
 
12/31/2016
 
 
 
ThUS$
 
 
ThUS$
 
 
ThUS$
 
Discounts obtained from suppliers
 
 
705
 
 
 
345
 
 
 
771
 
Fines charged to suppliers
 
 
698
 
 
 
199
 
 
 
358
 
Taxes recovered
 
 
685
 
 
 
1,278
 
 
 
657
 
Amounts recovered from insurance
 
 
443
 
 
 
154
 
 
 
5,636
 
Overestimate of provisions for third-party obligations
 
 
375
 
 
 
586
 
 
 
573
 
Other operating income
 
 
1,847
 
 
 
4,543
 
 
 
2,690
 
Options on mining claims
 
 
16,095
 
 
 
2,607
 
 
 
2,577
 
Easements, pipelines and roads
 
 
10,806
 
 
 
4,656
 
 
 
219
 
Reimbursement mining licenses and notary expenses
 
 
394
 
 
 
1,196
 
 
 
1,300
 
Shares obtained in junior mining companies through options
 
 
-
 
 
 
2,263
 
 
 
421
 
Total
 
 
32,048
 
 
 
17,827
 
 
 
15,202
 
Description of detailed information about employee benefits by nature of expenses [Text Block]
25.4
Administrative expenses
 
 
 
12/31/2018
 
 
13/31/2017
 
 
13/31/2016
 
 
 
ThUS$
 
 
ThUS$
 
 
ThUS$
 
Employee benefit expenses by nature
 
 
 
 
 
 
 
 
 
 
 
 
Remuneration and benefits to employees
 
 
(63,880
)
 
 
(51,761
)
 
 
(47,192
)
Marketing costs
 
 
(3,078
)
 
 
(2,539
)
 
 
(1,535
)
Amortization expenses
 
 
(15
)
 
 
(8
)
 
 
(6
)
Entertainment expenses
 
 
(4,805
)
 
 
(4,781
)
 
 
(4,022
)
Advisory services
 
 
(12,848
)
 
 
(14,348
)
 
 
(16,474
)
Leases
 
 
(4,556
)
 
 
(4,097
)
 
 
(4,236
)
Insurance
 
 
(1,758
)
 
 
(1,767
)
 
 
(1,732
)
Office expenses
 
 
(8,165
)
 
 
(5,357
)
 
 
(5,182
)
Contractors
 
 
(5,730
)
 
 
(4,805
)
 
 
(4,329
)
Other expenses, by nature
 
 
(13,291
)
 
 
(11,708
)
 
 
(3,728
)
Total
 
 
(118,126
)
 
 
(101,171
)
 
 
(88,436
)
Disclosure of detailed information about expenses by function [Text Block]
25.5
Other expenses by function
 
 
12/31/2018
 
 
12/31/2017
 
 
12/31/2016
 
 
 
ThUS$
 
 
ThUS$
 
 
ThUS$
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Classes of Employee Benefit Expenses
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Depreciation and amortization expense
 
 
 
 
 
 
 
 
 
 
 
 
Depreciation of assets not in use
 
 
(59
)
 
 
(90
)
 
 
(111
)
Subtotal
 
 
(59
)
 
 
(90
)
 
 
(111
)
Impairment losses (reversals of impairment losses) recognized in profit (loss) for the year
 
 
 
 
 
 
 
 
 
 
 
 
Amortization expense intangible
 
 
(1,649
)
 
 
-
 
 
 
-
 
Subtotal
 
 
(1,649
)
 
 
-
 
 
 
-
 
Other expenses, by nature
 
 
 
 
 
 
 
 
 
 
 
 
Legal expenses
 
 
(15,139
)
 
 
(25,176
)
 
 
(5,737
)
VAT and other unrecoverable taxes
 
 
(1,187
)
 
 
(1,295
)
 
 
(1,015
)
Fines paid
 
 
(965
)
 
 
(1,112
)
 
 
(31,867
)
Investment plan expenses
 
 
(13,419
)
 
 
(10,006
)
 
 
(6,657
)
Donations not accepted as tax credit
 
 
(4,502
)
 
 
(5,527
)
 
 
(1,692
)
Reorganization of related businesses
 
 
6,000
 
 
 
(6,000
)
 
 
-
 
Expenses to cease operations
 
 
-
 
 
 
-
 
 
 
(32,061
)
Other operating expenses
 
 
(7,636
)
 
 
(4,394
)
 
 
(3,393
)
Subtotal
 
 
(35,199
)
 
 
(53,510
)
 
 
(82,422
)
Total
 
 
(36,907
)
 
 
(53,600
)
 
 
(82,533
)
Disclosure of detailed information about other income expenses [Text Block]
25.6
Other gains (losses)
 
 
 
12/31/2018
 
 
12/31/2017
 
 
12/31/2016
 
 
 
ThUS$
 
 
ThUS$
 
 
ThUS$
 
Adjust previous year application method of participation
 
 
(664
)
 
 
500
 
 
 
(721
)
Impairment of interests in joint ventures (1)
 
 
(8,802
)
 
 
-
 
 
 
-
 
Sales of investments (2)
 
 
13,748
 
 
 
-
 
 
 
7,636
 
Others
 
 
2,122
 
 
 
43
 
 
 
(6,236
)
Total
 
 
6,404
 
 
 
543
 
 
 
679
 
 
(1)
See Note 10.2.
(2)
During the month of December 2018, SQM S.A. sold its interest in Minera Exar S.A. generating a pre-tax profit of ThUS$14,507.
Disclosure Of Impairment Losses And Reversal Of Impairment Losses [Table Text Block]
25.7
Impairment of gains and reversal of impairment losses
 
 
 
12/31/2018
 
 
12/31/2017
 
 
12/31/2016
 
 
 
ThUS$
 
 
ThUS$
 
 
ThUS$
 
Net impairment gains on reversal (losses) of financial assets
 
 
2,967
 
 
 
(8,038
)
 
 
(7,198
)
Total
 
 
2,967
 
 
 
(8,038
)
 
 
(7,198
)
 
Disclosure of detailed information about expenses by nature [Text Block]
25.8
Summary of expenses by nature
 
 
 
January to December
 
 
 
2018
 
 
2017
 
 
2016
 
 
 
ThUS$
 
 
ThUS$
 
 
ThUS$
 
 
 
 
 
 
 
 
 
 
 
Raw materials and consumables
 
 
(260,863
)
 
 
(227,620
)
 
 
(208,697
)
Classes of Employee Benefit Expenses
 
 
 
 
 
 
 
 
 
 
 
 
Personnel expenses
 
 
(267,449
)
 
 
(223,845
)
 
 
(209,527
)
Depreciation and amortization expense
 
 
 
 
 
 
 
 
 
 
 
 
Depreciation expense
 
 
(212,641
)
 
 
(232,365
)
 
 
(271,239
)
Amortization expense
 
 
(8,858
)
 
 
(8,161
)
 
 
(12,444
)
Operating leases
 
 
(79,951
)
 
 
(84,257
)
 
 
(75,784
)
Legal expenses
 
 
(15,139
)
 
 
(25,176
)
 
 
(5,737
)
Investment plan expenses
 
 
(26,803
)
 
 
(27,186
)
 
 
(24,354
)
Contractors
 
 
(86,313
)
 
 
(78,920
)
 
 
(72,112
)
Mining concessions
 
 
(8,168
)
 
 
(7,802
)
 
 
(7,313
)
Operation transport
 
 
(64,352
)
 
 
(69,052
)
 
 
(59,399
)
Freight and product transport costs
 
 
(43,510
)
 
 
(55,383
)
 
 
(64,857
)
Purchase of products from third parties
 
 
(239,781
)
 
 
(208,147
)
 
 
(211,928
)
Office expenses
 
 
(17,981
)
 
 
(15,612
)
 
 
(17,215
)
CORFO rights
 
 
(182,954
)
 
 
(46,274
)
 
 
(41,962
)
Export costs
 
 
(84,816
)
 
 
(83,057
)
 
 
(105,307
)
Representation expenses
 
 
(4,805
)
 
 
(4,781
)
 
 
(4,022
)
Restructuring of joint ventures
 
 
6,000
 
 
 
(6,000
)
 
 
-
 
Plant suspension expenses
 
 
-
 
 
 
-
 
 
 
(32,061
)
Consultant and advisor services
 
 
(12,848
)
 
 
(14,348
)
 
 
(16,474
)
Variation in inventory
 
 
11,600
 
 
 
(90,998
)
 
 
(10,774
)
Other expenses, by nature
 
 
(38,925
)
 
 
(40,609
)
 
 
(48,048
)
Other expenses by nature
 
 
(1,638,557
)
 
 
(1,549,593
)
 
 
(1,499,254
)
Disclosure of interest expense [text block]
25.9
Finance expenses
 
 
 
January to December
 
 
 
 
 
 
2018
 
 
2017
 
 
2016
 
 
 
ThUS$
 
 
ThUS$
 
 
ThUS$
 
Interest expense from bank borrowings and overdrafts
 
 
(1,707
)
 
 
(1,650
)
 
 
(1,847
)
Interest expense from bonds
 
 
(55,887
)
 
 
(49,373
)
 
 
(55,563
)
Interest expense from loans
 
 
(3,093
)
 
 
(2,002
)
 
 
(4,419
)
Capitalized interest expenses
 
 
5,021
 
 
 
4,382
 
 
 
5,406
 
Financial expenses for site closure
 
 
(960
)
 
 
-
 
 
 
-
 
Other finance costs
 
 
(3,288
)
 
 
(1,481
)
 
 
(1,075
)
Total
 
 
(59,914
)
 
 
(50,124
)
 
 
(57,498
)