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ENVIRONMENTAL LIABILITIES (Tables) | 12 Months Ended
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Dec. 31, 2019
ENVIRONMENTAL LIABILITIES |
Schedule of provision for environmental liabilities |
|  | 2019 |  | 2018
Provision for environmental liabilities |  | 112,308 |  | 132,647
Current |  | 60,913 |  | 60,419
Non-current |  | 51,395 |  | 72,228

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