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Trade accounts receivables (Tables) | 12 Months Ended
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Dec. 31, 2024
Trade and other current receivables [abstract] |
Disclosure of Trade Accounts Receivables by Type of Customer |
| 12/31/2024 |  | 12/31/2023
Domestic customers |  |  |
Third parties | 1,989,455 |  |  | 1,785,157 |
Related parties (Note 11.1) (1) | 83,343 |  |  | 45,650 |
Foreign customers |  |  |
Third parties | 7,090,160 |  |  | 5,049,609 |
Related parties (Note 11.1) | 202 |  |  |  |
(-) Expected credit losses | (30,300) |  |  | (31,962) |
| 9,132,860 |  |  | 6,848,454 |
(1)The balance refers to transactions with Ibema Companhia Brasileira de Papel.
Disclosure of Past Due Trade Accounts Receivables by maturity and allowance for doubtful accounts [table text block] |
| 12/31/2024 |  | 12/31/2023
Current | 8,216,570 |  |  | 5,904,402 |
Overdue |  |  |
Up to 30 days | 682,142 |  |  | 644,644 |
From 31 to 60 days | 134,674 |  |  | 57,395 |
From 61 to 90 days | 38,187 |  |  | 97,639 |
From 91 to 120 days | 17,701 |  |  | 40,533 |
From 121 to 180 days | 12,402 |  |  | 34,708 |
From 181 days | 31,184 |  |  | 69,133 |
| 9,132,860 |  |  | 6,848,454 |
Disclosure of Changes in Allowance for Doubtful Accounts |
| 12/31/2024 |  | 12/31/2023
Opening balance | (31,962) |  |  | (21,109) |
(Provisions)/Reversals, net | (2,585) |  |  | (35,202) |
Write-offs | 5,790 |  |  | 24,230 |
Exchange rate variations | (1,543) |  |  | 119 |
Closing balance | (30,300) |  |  | (31,962) |

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