| 14. | INTANGIBLE ASSETS |
| 12.31.2017 | 12.31.2016 | |||||||
|
Software |
44,960,664 | 26,541,364 | ||||||
|
Mining exploitation rights |
30,506,058 | 30,506,058 | ||||||
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|
|
|
|
|||||
| 75,466,722 | 57,047,422 | |||||||
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|
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|
Cost |
Software | Mining exploitation rights |
Total | |||||||||
|
Balances as of January 1, 2016 |
45,263,657 | 30,506,058 | 75,769,715 | |||||||||
|
Additions |
12,390,941 | — | 12,390,941 | |||||||||
|
Business combination under common control (Note 16) |
2,082,349 | — | 2,082,349 | |||||||||
|
Disposals |
(74,661 | ) | — | (74,661 | ) | |||||||
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|
|
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|
|
|
|||||||
|
Balances as of December 31, 2016 |
59,662,286 | 30,506,058 | 90,168,344 | |||||||||
|
Effect of foreign currency Exchange differences |
483,545 | — | 483,545 | |||||||||
|
Additions |
28,065,101 | — | 28,065,101 | |||||||||
|
Disposals |
(111,539 | ) | — | (111,539 | ) | |||||||
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|
|
|
|||||||||
|
Balances as of December 31, 2017 |
88,099,393 | 30,506,058 | 118,605,451 | |||||||||
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|
|
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|
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|
Accumulated amortization |
||||||||||||
|
Balances as of January 1, 2016 |
(22,540,446 | ) | — | (22,540,446 | ) | |||||||
|
Business combination under common control (Note 16) |
(1,743,279 | ) | — | (1,743,279 | ) | |||||||
|
Disposals |
8,711 | — | 8,711 | |||||||||
|
Amortization |
(8,845,908 | ) | — | (8,845,908 | ) | |||||||
|
Balances as of December 31, 2016 |
(33,120,922 | ) | — | (33,120,922 | ) | |||||||
|
|
|
|
|
|
|
|||||||
|
Effect of foreign currency Exchange differences |
(251,999 | ) | — | (251,999 | ) | |||||||
|
Additions |
(9,877,347 | ) | — | (9,877,347 | ) | |||||||
|
Disposals |
111,539 | — | 111,539 | |||||||||
|
|
|
|
|
|
|
|||||||
|
Balances as of December 31, 2017 |
(43,138,729 | ) | — | (43,138,729 | ) | |||||||
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|
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The Company classifies mining exploitation rights as intangible assets, which are valued at the cost. The use of mining rights has not started as of December 31, 2017.