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Effect of fluctuations in foreign currency exchange rates
 12 Months Ended
Dec. 31, 2021
Disclosure of effect of changes in foreign exchange rates [Abstract]  
Disclosure of effect of changes in foreign exchange rates [text block]
Note 23
 
(a)
Foreign currency exchange differences recognized in profit or loss and other comprehensive income:
 
Foreign currency exchange differences recognized in profit or loss and other
comprehensive income
 
As of
December 31,
2021
 
 
As of
December 31,
2020
 
 
As of
December 31,
2019
 
 
 
ThUS$
 
 
ThUS$
 
 
ThUS$
 
Conversion foreign exchange gains (losses) recognized in the result of the year
 
 
(17,241
)
 
 
(4,423
)
 
 
(2,169
)
Conversion foreign exchange reserves
                        
Conversion foreign exchange reserves attributable to the owners of the controlling entity     3,656       14,176       562  
Conversion foreign exchange reserves attributable to the non-controlling entity     584       (176 )     225  
Total
 
 
4,240
 
 
 
14,000
 
 
 
787
 
 
(b)
Reserves for foreign currency exchange differences:
 
As of December 31, 2021, and 2020, are detailed as follows:
 
Details
 
As of
December 31,
2021
 
 
As of
December 31,
2020
 
 
As of
December 31,
2019
 
 
 
ThUS$
 
 
ThUS$
 
 
ThUS$
 
Changes in equity generated by the equity method value through conversion:
                        
Comercial Hydro S.A.     1,004       1,004       1,004  
SQMC Internacional Ltda.     (9 )     (9 )     (9 )
Proinsa Ltda.     (10 )     (10 )     (10 )
Comercial Agrorama Ltda.     155       (19 )     33  
Isapre Norte Grande Ltda.     (121 )     (14 )     (44 )
Almacenes y Depósitos Ltda.     305       211       142  
Sacal S.A.     (3 )     (3 )     (3 )
Sociedad Prestadora de Servicios de Salud Cruz del Norte S.A.     (36 )     (13 )     (19 )
Agrorama S.A.     628       92       231  
Doktor Tarsa     -       -       (13,811 )
SQM Vitas Fzco     (4,165 )     (3,736 )     (2,267 )
Doctochem     -       -       7  
SQM Eastmed Turkey     -       -       (155 )
Ajay Europe     (1,413 )     (693 )     (1,449 )
Coromandel SQM India     -       -       (431 )
SQM Italia SRL     -       -       (236 )
SQM Oceanía Pty Ltd.     (579 )     (579 )     (634 )
SQM Indonesia S.A.     (124 )     (124 )     (124 )
Abu Dhabi Fertillizers Industries WWL.     372       372       372  
SQM Holland B.V.     99       99       (197 )
SQM Thailand Limited     (68 )     (68 )     (68 )
SQM Europe     (1,983 )     (1,983 )     (1,983 )
SQM Australia Pty Ltd.     (1,732 )     (4,052 )     (4,035 )
Pavoni & C. Spa     (153 )     164       (185 )
Terra Tarsa BV     -       -       116  
Plantacote NV     -       -       (16 )
Doktolab Tarim Arastirma San.     -       -       (54 )
Kore Potash PLC (a)     -       (2,128 )     (1,754 )
SQM Colombia S.A.S.     (80 )     (80 )     (166 )
Total
 
 
(7,913
)
 
 
(11,569
)
 
 
(25,745
)
(c)
Functional and presentation currency
 
The functional currency of these companies corresponds to the currency of the country of origin of each entity, and its presentation currency is the dollar.
 
(d)
Reasons to use one presentation currency and a different functional currency
 
- A relevant portion of the revenues of these subsidiaries are associated with the local currency.
 
- The cost structure of these companies is affected by the local currency.