EX-99.1 2 a20251209-minutesoftheboar.htm EX-99.1

Document

Exhibit 99.1

SUZANO S.A.

Publicly Held Company

CNPJ/MF No. 16.404.287/0001-55

NIRE No. 29.300.016.331

MINUTES OF THE BOARD OF DIRECTORS MEETING HELD ON DECEMBER 9th, 2025

1.Date, Time, and Venue: On December 9th, 2025, at 10a.m., its Board of Directors (“Board”) at Suzano S.A. (“Company”) met through the Company’s videoconferencing system.

2.Attendance: The following Directors of the Company attended the Meeting, representing their entirety: David Feffer (Chairman of the Board of Directors), Daniel Feffer (Vice-Chairman of the Board of Directors), Nildemar Secches (Vice-Chairman of the Board of Directors), Gabriela Feffer Moll, Maria Priscila Rodini Vansetti Machado, Paulo Rogerio Caffarelli, Paulo Sergio Kakinoff, Rodrigo Calvo Galindo and Walter Schalka. Also attended the meeting, as guests, Mr. João Alberto de Abreu, President of the Company, Mr. Marcos Moreno Chagas Assumpção, Executive Vice-President of Finance and Investor Relations and Mr. João Vitor Zocca Moreira, as Secretary of the meeting.

3.Call: The meeting has been timely convened under article 13 of the Company’s Bylaws and clause 6.1 of the Board’s Internal Regulations.

4.Board Composition: the meeting was chaired by Mr. David Feffer and Mr. João Vitor Zocca Moreira acted as secretary.

5.Agenda: Approval of the Annual Budget 2026.

6.Minutes in Summary Form: The Directors approved unanimously and without reservations the drawing up of these minutes in summary form.

7.Presentation, discussions on the agenda, and resolutions:

7.1.The Directors, with a favorable opinion from the Management and Finance Committee, unanimously and without reservations, approved pursuant to article 14(h) of the Bylaws of the Company, the proposed Annual Budget projected for the fiscal year 2026, as per the material provided, authorizing the Company’s Vice-Presidency to carry out the investments and expenditures therein contemplated. Once the approval was concluded, the matter was closed as the agenda.

8.Closing: There being no further matters to be discussed, the meeting was closed. The minutes of the Meeting were drawn up, read, and shall be signed electronically by all Directors in attendance, and such signatures shall have retroactive effect to the date of the meeting. It is recorded that the documents and submissions that supported the matters

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(Continuation of the Extract of the Minutes of the Board of Directors Meeting of Suzano S.A., held on December 9th, 2025)

Exhibit 99.1

discussed in this meeting have been filed with the Governance Platform. Signatures: Members of the Board of Directors: David Feffer (Chairman of the Board of Directors), Daniel Feffer (Vice-Chairman of the Board of Directors), Nildemar Secches (Vice-Chairman of the Board of Directors), Gabriela Feffer Moll (Board Member), Maria Priscila Rodini Vansetti Machado (Board Member), Paulo Rogerio Caffarelli (Board Member), Paulo Sergio Kakinoff (Board Member), Rodrigo Calvo Galindo (Board Member) and Walter Schalka (Board Member). This is a true copy of the original minutes drawn up in the Company’s records.

São Paulo, SP, December 9, 2025.

João Vitor Zocca Moreira

Secretary

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