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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT - Price risk (Details) R$ in Thousands, $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2021 BRL (R$) | Dec. 31, 2020 USD ($)
Probable |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Percentage change in sensitivity analysis scenario | 2.5282% |
Possible (+25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Percentage change in sensitivity analysis scenario | 3.1603% |
Remote (+50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Percentage change in sensitivity analysis scenario | 3.7923% |
Commodity price risk |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Logistics costs | $ |  | $ 37,757
Commodity price risk | Embedded derivative | Probable |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on fair value of assets attributable to an increase in measurement input. | R$ 254,848 |
Commodity price risk | Embedded derivative | Possible (+25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on fair value of assets attributable to an increase in measurement input. | 165,629 |
Commodity price risk | Embedded derivative | Remote (+50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on fair value of assets attributable to an increase in measurement input. | R$ 340,080 |

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