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Loans, financing and debentures - Relevant transactions entered into during the period (Details) ¥ in Thousands, $ in Thousands | Apr. 30, 2024 USD ($) | Apr. 30, 2024 BRL (R$) | Feb. 15, 2024 USD ($) | Feb. 15, 2024 BRL (R$) | May 21, 2025 | Dec. 26, 2024 BRL (R$) | Dec. 20, 2024 BRL (R$) | Dec. 10, 2024 USD ($) | Dec. 10, 2024 BRL (R$) | Nov. 15, 2024 USD ($) | Nov. 15, 2024 BRL (R$) | Nov. 15, 2024 CNY (¥) | Nov. 08, 2024 BRL (R$) | Oct. 16, 2024 BRL (R$) | Aug. 26, 2024 BRL (R$) | Jun. 27, 2024 BRL (R$) | Jun. 21, 2024 USD ($) | Jun. 21, 2024 BRL (R$) | Jun. 05, 2024 USD ($) | Jun. 05, 2024 BRL (R$) | May 29, 2024 BRL (R$) | May 17, 2024 USD ($) | May 17, 2024 BRL (R$) | Mar. 28, 2024 BRL (R$) | Aug. 25, 2023
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Export Prepayment Agreements ("EPP") | February 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of borrowings, classified as financing activities |  |  | $ 780,000 | R$ 3,877,380 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Export Development Canada (“EDC”) [Member] | April 2031 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of borrowings, classified as financing activities | $ 125,000 | R$ 646,475 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debentures |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R$ 5,900,000 |  |  |  |
Debentures | May 2035 and May 2036 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R$ 900,000 |  |  |  |
Advance of exchange contract (ACC) | May 2025 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  |  |  |  | 6.54% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.46% | 6.46% |  |
Advance of exchange contract (ACC) | June 2024 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 35,000 | R$ 194,561,000 |  |  |  |  |  |  |
Borrowings, interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.52% | 6.52% |  |  |  |  |  |  |
Advance of exchange contract (ACC) | May 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000 | R$ 555,890,000 |  |
Borrowings, interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.00% | 6.00% |  |
Panda Bonds (1) | Jun 2027 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  | $ 166 | R$ 960,891 | ¥ 1,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate |  |  |  |  |  |  |  |  |  | 2.80% | 2.80% | 2.80% |  |  |  |  |  |  |  |  |  |  |  |  |
IFC - International Finance Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility Maximum Borrowing Capacity |  |  |  |  |  |  |  | $ 350 | R$ 2,118,515 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IFC - International Finance Corporation | December 2030 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility Maximum Borrowing Capacity |  |  |  |  |  |  |  | $ 245 | R$ 1,482,961 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate |  |  |  |  |  |  |  | 1.80% | 1.80% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IFC - International Finance Corporation | December 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility Maximum Borrowing Capacity |  |  |  |  |  |  |  | $ 105 | R$ 635,554 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate |  |  |  |  |  |  |  | 1.60% | 1.60% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SOFR | February 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Floating rate increasing annually until maturity |  |  | 0.05% | 0.05% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SOFR | Export Prepayment Agreements ("EPP") | February 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  |  | 1.65% | 1.65% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SOFR | Export Development Canada (“EDC”) [Member] | April 2031 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.74%
CDI | Rural Credit Note [Member] | March 2025 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |
CDI | Debentures | May 2031 and May 2032 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.80% |  |  |  |
Notional value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R$ 1,000,000 |  |  |  |
Borrowing, term |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8 years |  |  |  |
CDI | Debentures | May 2033 and May 2034 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |
Notional value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R$ 4,000,000 |  |  |  |
Borrowing, term |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |  |  |
IPCA + | Debentures | May 2035 and May 2036 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.11% |  |  |  |
Borrowing, term |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 years |  |  |  |
BNDES | December 2043 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R$ 65,000,000 |  |  |  |  |  |  |  |  |
BNDES | May 2044 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional value |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R$ 1,110,000 |  |  |  |  |  |  |  |  |  |
BNDES | October 2042 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional value |  |  |  |  |  |  |  |  |  |  |  |  |  | R$ 32,000 |  |  |  |  |  |  |  |  |  |  |
BNDES | December 2037 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional value |  |  |  |  |  |  |  |  |  |  |  |  | R$ 154,000 |  |  |  |  |  |  |  |  |  |  |  |
BNDES | December 2040 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional value |  |  |  |  |  |  | R$ 61,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
BNDES | December 2044 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional value |  |  |  |  |  | R$ 208,981 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
BNDES | BNDES – TLP [Member] | Funds raised from BNDES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 5.23% | 5.27% | 5.48% | 5.56% |  |  |  |  |  |  |  |  |
BNDES | Fixed | Funds raised from BNDES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  |  |  |  |  | 1.65% | 2.24% |  |  |  |  |  | 1.65% | 1.75% | 1.75% | 1.75% |  |  |  |  |  |  |  |  |
Banco Safra | Rural Credit Note [Member] | March 2025 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R$ 200,000,000 |
BNP Bank [Member] | Advance of exchange contract (ACC) | June 2025 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.43% | 6.43% |  |  |  |  |
BNP Bank [Member] | Advance of exchange contract (ACC) | June 2024 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 15,000 | R$ 83,383,000 |  |  |  |  |

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