| Disclosure of operating segments [text block] |
| | | | | | | | | | | | | | | | | | | 03/31/2026 | | Pulp | | Paper | | Total | Net sales | 8,345,742 | | | 2,622,674 | | | 10,968,416 | | Domestic market (Brazil) | 405,693 | | | 1,666,054 | | | 2,071,747 | | Foreign market | 7,940,049 | | | 956,620 | | | 8,896,669 | | Cost of sales | (5,938,620) | | | (1,868,956) | | | (7,807,576) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adjusted EBITDA | 4,056,317 | | | 523,828 | | | 4,580,145 | | | | | | | | Adjustments to EBITDA (*) | | | | | 1,643 | | Depreciation, depletion and amortization | | | | | (2,806,652) | | Financial result | | | | | 4,616,436 | | Net income before taxes | | | | | 6,391,572 | |
| | | | | | | | | | | | | | | | | | | 03/31/2025 | | Pulp | | Paper | | Total | Net sales | 8,611,543 | | | 2,941,378 | | | 11,552,921 | | Domestic market (Brazil) | 457,416 | | | 1,691,196 | | | 2,148,612 | | Foreign market | 8,154,127 | | | 1,250,182 | | | 9,404,309 | | Cost of sales | (5,696,157) | | | (2,033,010) | | | (7,729,167) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adjusted EBITDA | 4,254,146 | | | 611,628 | | | 4,865,774 | | | | | | | | Adjustments to EBITDA (*) | | | | | (109,317) | | Depreciation, depletion and amortization | | | | | (2,497,422) | | Financial result | | | | | 7,696,213 | | Net income before taxes | | | | | 9,955,248 | |
| | | | | | | | | | | | | | | | | 03/31/2026 | | 03/31/2025 | | (*) Adjustments to EBITDA | | | | | | | | | | Loss from associates and joint ventures | | (20,372) | | | (17,077) | | | | | | | | | | | | Income (loss) on disposal and write-off of non-current assets | | 32,052 | | | (46,306) | | Provision/(reversals) for losses on ICMS credits (note 13.1) | | 13,211 | | | (45,765) | | Expenses on Asset Acquisition and Business Combinations | | (15,062) | | | | | | | | | Restructuring expenses | | (7,534) | | | (23) | | Others (1) | | (652) | | | (146) | | | | 1,643 | | | (109,317) | |
(1) It includes items with specific, non-cash and exceptional adjustments, such as: i) effective loss of the development contract advance program; and (ii) write-off of stacked wood inventory.
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| Disclosure of products and services [text block] |
| | | | | | | | | | | | | | | | | | | 03/31/2026 | | 03/31/2025 | | | | Products | | | | | | | Market pulp (1) | | 8,345,742 | | | 8,611,543 | | | | Printing and writing paper (2) | | 1,770,639 | | | 1,879,301 | | | | Paperboard | | 843,550 | | | 1,051,768 | | | | Other | | 8,485 | | | 10,309 | | | | | | 10,968,416 | | | 11,552,921 | | | |
(1)Net sales of fluff pulp represent 0.5% of total net sales, and therefore were included in market pulp net sales. (0.7% as at March 31, 2025). (2)Net sales of tissue represent 6.1% of total net sales, and therefore were included in printing and writing paper net sales. (5.8% as at March 31, 2025).
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