Company: SUZ
Filing Date: 2025-08-07
Form Type: 6-K
Source: 0000909327-25-000014
Chunk: 23

Company: Suzano S.A.
Filing Date: 2025-08-07
Form: 6-K
Chunk 23
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,790 |            |
| Gain (loss) on fair value adjustments |     |    -73,248 |            |     |  1,431,530 |            |
| Disposals                             |     |    -12,390 |            |     |   -130,922 |            |
| Write-offs                            |     |    -54,576 |            |     |   -114,298 |            |
| Closing balance                       |     | 23,221,979 |            |     | 22,283,001 |            |

The calculation of fair value of the biological assets is determined using unobservable data, therefore it falls under Level 3 in the hierarchy set forth in IFRS 13 — Measurement of Fair Value.

In our model, the assumptions regarding the average annual growth rate (IMA) and average gross selling price of eucalyptus are particularly sensitive. Any increase or decrease in these assumptions could lead to significant gains or losses in the fair value measurement.

The assumptions used in the measurement of the fair value of biological assets were as follow:

(i) Average cycle of forest formation between 6and 7years;

(ii) Effective area of forest from the 3rd year of planting;

(iii) The IMA consists of the estimated volume of production of wood with bark in m3 per hectare, ascertained based on the genetic material used in each region, silvicultural practices and forest management, production potential, climate factors and soil conditions;

(iv) The estimated average standard cost per hectare includes silvicultural and forest management expenses, applied to each year of formation of the biological cycle of the forests, plus the costs of land lease agreements and the opportunity cost of owning land;

(v) The average gross selling prices of eucalyptus were based on specialized research on transactions carried out by the Company with independent third parties; and

(vi) The discount rate corresponds to the Weighted Average Cost of Capital (“WACC”).

| 35 |

The table below discloses the measurement of the premises adopted:

|                                                |     |      | 06/30/2025 |     |      | 12/31/2024 |
| Useful productive planted area (hectare)       |     |      |  1,268,890 |     |      |  1,243,191 |
| Mature assets (6 to 7 years)                   |     |      |    183,841 |     |      |