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Related parties - Balances recognized in assets and liabilities and amounts transacted during the period (Details) - BRL (R$) R$ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets | R$ 78,273 |  | R$ 50,321
Liabilities | (5,810) |  | (620,602)
Financial result, net | 47 |  |
Sales (purchases), net | 84,979 | R$ 108,105 |
Trade accounts receivable |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets | 74,292 |  | 45,650
Other assets |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets | 3,981 |  | 4,671
Trade accounts payable |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Liabilities | (5,810) |  | (1,023)
Dividends and interests on own capital payable |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Liabilities |  |  | (619,579)
Transactions with majority shareholders |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets | 6 |  | 24
Liabilities |  |  | (619,579)
Sales (purchases), net | 22 | 22 |
Suzano Holding S.A. |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets | 6 |  | 24
Liabilities |  |  | (363,520)
Sales (purchases), net | 22 | 22 |
Controller |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Liabilities |  |  | (193,883)
Managements and related persons |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets |  |  |
Liabilities |  |  | (31,748)
Sales (purchases), net |  |  |
Alden Fundo de Investimento em Ações |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Liabilities |  |  | (30,428)
Transactions with companies of the Suzano Group and other related parties |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets | 78,267 |  | 50,297
Liabilities | (5,810) |  | (1,023)
Financial result, net | 47 |  |
Sales (purchases), net | 84,957 | 108,083 |
Management |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets | 91 |  | 61
Sales (purchases), net | 290 | (810) |
Bexma Participacoes Ltda. |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets |  |  |
Sales (purchases), net | 3 | 4 |
Naman Capital Ltda |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets | 2 |  |
Sales (purchases), net | 4 | 3 |
Civelec Participações Ltda |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets | 3,860 |  | 4,575
Financial result, net | 28 |  |
Sales (purchases), net |  | 4,825 |
Fundacao Arymax |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets | 2 |  |
Sales (purchases), net | 3 | 1 |
Ibema Companhia Brasileira de Papel |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets | 73,977 |  | 45,659
Liabilities | (5,802) |  | (1,023)
Sales (purchases), net | 87,768 | 108,105 |
Instituto Ecofuturo - Futuro Para o Desenvolvimento Sustentavel |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets | 1 |  | 2
Liabilities | (8) |  |
Sales (purchases), net | (2,837) | (3,959) |
IPFL Holding S.A |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets |  |  |
Sales (purchases), net | 2 | 2 |
Mabex Representacoes e Participacoes Ltda. |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Sales (purchases), net | (629) |  |
Nemonorte Imoveis e Participacoes Ltda. |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Sales (purchases), net | (74) | R$ (88) |
Woodspin Oy |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |
Assets | 334 |  |
Financial result, net | 19 |  |
Sales (purchases), net | R$ 427 |  |

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