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ENVIRONMENTAL LIABILITIES (Tables) | 12 Months Ended
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Dec. 31, 2018
ENVIRONMENTAL LIABILITIES |
Schedule of provision for environmental liabilities |
|  | 2018 |  | 2017
Provision for environmental liabilities |  | 132,647 |  | 85,191
Current |  | 60,419 |  | 21,928
Non-current |  | 72,228 |  | 63,263

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