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INTANGIBLE ASSETS, NET
 12 Months Ended
Dec. 31, 2019
Disclosure of detailed information about intangible assets [abstract]  
INTANGIBLE ASSETS, NET
INTANGIBLE ASSETS, NET
 
Year ended December 31, 2019
 
Information
system
projects
 
Mining
assets
 
Exploration
and
evaluation
costs
 
Customer
relationships
and other
contractual
rights
 
Trademarks
 
Goodwill
 
Total
Values at the beginning of the year
 
 
 
 
 
 
 
 
 
 
 
 
 
Cost
320,600

 
216,203

 
23,209

 
604,931

 
73,935

 
662,307

 
1,901,185

Accumulated depreciation
(248,839
)
 
(139,915
)
 
—

 
(425,972
)
 
(73,935
)
 
—

 
(888,661
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net book value at January 1, 2019
71,761

 
76,288

 
23,209

 
178,959

 
—

 
662,307

 
1,012,524

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Opening net book value
71,761

 
76,288

 
23,209

 
178,959

 
—

 
662,307

 
1,012,524

Translation differences
(463
)
 
—

 
—

 
—

 
—

 
—

 
(463
)
Additions
31,812

 
12,580

 
24,265

 
—

 
—

 
—

 
68,657

Disposals / Consumptions
—

 
—

 
—

 
—

 
—

 
—

 
—

Transfers
(738
)
 
27,954

 
(27,952
)
 
—

 
—

 
—

 
(736
)
Depreciation charge
(27,991
)
 
(12,305
)
 
—

 
(95,848
)
 
—

 
—

 
(136,144
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Closing net book value
74,381

 
104,517

 
19,522

 
83,111

 
—

 
662,307

 
943,838

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Values at the end of the year
 
 
 
 
 
 
 
 
 
 
 
 
 
Cost
342,857

 
256,736

 
19,522

 
604,929

 
73,935

 
662,307

 
1,960,286

Accumulated depreciation
(268,476
)
 
(152,219
)
 
—

 
(521,818
)
 
(73,935
)
 
—

 
(1,016,448
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net book value at December 31, 2019
74,381

 
104,517

 
19,522

 
83,111

 
—

 
662,307

 
943,838

 
Year ended December 31, 2018
 
Information
system
projects
 
Mining
assets
 
Exploration
and
evaluation
costs
 
Customer
relationships
and other
contractual
rights
 
Trademarks
 
Goodwill
 
Total
Values at the beginning of the year
 
 
 
 
 
 
 
 
 
 
 
 
 
Cost
249,379

 
216,196

 
10,333

 
604,931

 
73,935

 
662,307

 
1,817,081

Accumulated depreciation
(188,470
)
 
(121,859
)
 
—

 
(340,238
)
 
(73,935
)
 
—

 
(724,502
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net book value at January 1, 2018
60,909

 
94,337

 
10,333

 
264,693

 
—

 
662,307

 
1,092,579

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Opening net book value
60,909

 
94,337

 
10,333

 
264,693

 
—

 
662,307

 
1,092,579

Effect of initial inflation adjustment (Note 4 (cc))
4,966

 
—

 
—

 
—

 
—

 
—

 
4,966

Translation differences
(6,674
)
 
—

 
—

 
—

 
—

 
—

 
(6,674
)
Additions
27,594

 
10,243

 
2,641

 
—

 
—

 
—

 
40,478

Disposals / Consumptions
(87
)
 
—

 
—

 
—

 
—

 
—

 
(87
)
Transfers
480

 
(10,237
)
 
10,235

 
—

 
—

 
—

 
478

Depreciation charge
(15,427
)
 
(18,055
)
 
—

 
(85,734
)
 
—

 
—

 
(119,216
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Closing net book value
71,761

 
76,288

 
23,209

 
178,959

 
—

 
662,307

 
1,012,524

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Values at the end of the year
 
 
 
 
 
 
 
 
 
 
 
 
 
Cost
320,600

 
216,203

 
23,209

 
604,931

 
73,935

 
662,307

 
1,901,185

Accumulated depreciation
(248,839
)
 
(139,915
)
 
—

 
(425,972
)
 
(73,935
)
 
—

 
(888,661
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net book value at December 31, 2018
71,761

 
76,288

 
23,209

 
178,959

 
—

 
662,307

 
1,012,524

The Company has not registered any impairment charges in connection with Goodwill.