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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT - Outstanding derivatives by contract type, including embedded derivatives (Details) R$ in Thousands, $ in Thousands | Dec. 31, 2024 BRL (R$) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 BRL (R$) | Dec. 31, 2023 USD ($)
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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Derivative fair value asset (liability), net | R$ (6,567,720) |  | R$ 1,994,382 |
Derivative financial instruments | 1,006,427 |  | 2,676,526 |
Derivative financial instruments | 2,880,673 |  | 1,753,928 |
Current derivative financial liabilities | (2,760,273) |  | (578,763) |
Non-current derivative financial liabilities | (7,694,547) |  | (1,857,309) |
Operational Hedge |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Derivative fair value asset (liability), net | (4,660,846) |  | 2,231,475 |
Fair value hedges |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Derivative fair value asset (liability), net | (1,843,085) |  | (486,713) |
Commodity Hedge |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Derivative fair value asset (liability), net | (63,789) |  | 249,620 |
NDF (R$ x US$) | Operational Hedge |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | 581,000 |  | 505,000 |
Derivative fair value asset (liability), net | (331,876) |  | 162,776 |
NDF (Euro x US$) | Operational Hedge |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount |  |  | 262,088 |
Derivative fair value asset (liability), net |  |  | 100,362 |
Swap US-CPI (US$) | Commodity Hedge |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | 138,439 |  | 131,510 |
Derivative fair value asset (liability), net | (80,759) |  | 230,471 |
Swap VLSFO/Brent | Commodity Hedge |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | 39,706 |  | 142,794 |
Derivative fair value asset (liability), net | 10,873 |  | 22,297 |
Interest rate swap contract | ZCC | Operational Hedge |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | $ |  | $ 6,852,200 |  | $ 4,500,200
Derivative fair value asset (liability), net | (4,328,970) |  | 1,968,337 |
Interest rate swap contract | ZCC | Commodity Hedge |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | $ |  | 163,941 |  | 163,100
Derivative fair value asset (liability), net | 6,097 |  | (3,148) |
Interest rate swap contract | NDF (R$ x US$) | Operational Hedge |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | $ |  | 581,000 |  | 505,000
Derivative fair value asset (liability), net | (331,876) |  | 162,776 |
Interest rate swap contract | NDF (Euro x US$) | Operational Hedge |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | $ |  |  |  | 262,088
Derivative fair value asset (liability), net |  |  | 100,362 |
Interest rate swap contract | Swap SOFR to Fixed (US$) | Fair value hedges |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | $ |  | 1,973,705 |  | 2,555,626
Derivative fair value asset (liability), net | 394,129 |  | 741,492 |
Interest rate swap contract | Swap IPCA to CDI (notional in Brazilian Reais) | Fair value hedges |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | $ |  | 8,128,395 |  | 4,274,397
Derivative fair value asset (liability), net | (825,899) |  | 47,645 |
Interest rate swap contract | Swap CNH to Fixed (CNH) | Fair value hedges |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | $ |  | 165,815 |  |
Derivative fair value asset (liability), net | (6,440) |  |  |
Interest rate swap contract | Swap CDI x Fixed (US$) | Fair value hedges |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | $ |  | 909,612 |  | 1,025,000
Derivative fair value asset (liability), net | (776,261) |  | (1,081,964) |
Interest rate swap contract | Pre-fixed Swap to US$ (US$) | Fair value hedges |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | $ |  |  |  | 200,000
Derivative fair value asset (liability), net |  |  | (203,045) |
Interest rate swap contract | Swap CDI x SOFR (US$) | Fair value hedges |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | $ |  | 610,171 |  | 125,000
Derivative fair value asset (liability), net | (590,764) |  |  | 25,774
Interest rate swap contract | Swap SOFR to SOFR (US$) | Fair value hedges |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | $ |  | 150,961 |  | 150,961
Derivative fair value asset (liability), net | (37,850) |  |  | (16,615)
Interest rate swap contract | Swap US-CPI (US$) | Commodity Hedge |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | $ |  | 138,439 |  | 131,510
Derivative fair value asset (liability), net | (80,759) |  | 230,471 |
Interest rate swap contract | Swap VLSFO/Brent | Commodity Hedge |  |  |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |  |  |
Principle amount | $ |  | $ 39,706 |  | $ 142,794
Derivative fair value asset (liability), net | R$ 10,873 |  | R$ 22,297 |

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