Klabin S A : Minutes of Board of Directors Meeting

KLABIN S.A.

CNPJ/MF No. 89.637.490/0001-45

NIRE No. 35300188349

BOARD OF DIRECTORS MINUTES OF EXTRAORDINARY MEETING

HELD ON FEBRUARY 17, 2023

1. Date, time and place: On February 17th (eighteenth), 2023, at 10:00 am (ten o´clock), the Board of Directors of Klabin S.A. ("Company"), headquartered at
   Avenida Brigadeiro Faria Lima, No. 3600, 5th floor, in the city of São Paulo, State of São Paulo.
2. Notice of meeting: The directors were previously convened pursuant to Article 18 of the Bylaws.

3. Attendance: The members of the Board of Directors were present, according to the names listed at the close of these minutes.

4. Board: Paulo Sergio Coutinho Galvão Filho - Chairman and Joaquim Miró Neto - Secretary.

5. Agenda: to resolve on (a) the Management Proposal for the Annual General Meeting of 2023; (b) the global compensation for directors and Fiscal Council members for 2023 and (c) the Annual General Meeting call.

6. Matters and resolutions taken: After discussing the matters on the agenda, the Directors unanimously and without reservations approved:

1. Annual General Meeting ("AGM") Management´s Proposal which shall present:I. Take the management's accounts, examine, discuss and vote on the Management Report and the Company's Financial Statements, accompanied by the Opinions issued by the Independent Auditors and the Audit Committee, referring to the fiscal year ended on December 31, 2022; II. Resolve on the allocation of net income

for the fiscal year ended on December 31, 2022; III. Set the number of seats on the Board of Directors for the next term; IV. Elect the members of the Board of Directors; V. Elect the members of the Fiscal Council; VI. Resolve on the global managers' annual compensation for the fiscal year 2023; and VII. Resolve on the global Fiscal Council members' compensation for the fiscal year 2023;

1. ad referendum of the Annual General Meeting: I. the managers' global compensation for the financial year 2023, amounting up to R$ 83,928,461.14 (eighty-three million, nine hundred and twenty-eight thousand, four hundred and sixty-one reais and fourteen cents), with the estimate that the amount of up to R$ 13,471,241.57 (thirteen million, four hundred and seventy-one thousand, two hundred and forty-one reais and fifty-seven cents) is destined to the Board of Directors; the amount of up to R$ 1,080,000.00 (one million and eighty thousand reais) for the Advisory Committees to the Board of Directors; and the amount of up to R$ 69,377,219.57 (sixty-nine million, three hundred and seventy-seven thousand, two hundred and nineteen reais and fifty-seven cents) for the Statutory Board; and (ii) Fiscal Council members' global compensation for the year 2023, amounting up to R$ 1,996,519.09 (one million, nine hundred and ninety-six thousand, five hundred and nineteen reais and nine cents); and
2. the call of the Company's Annual General Meeting, to be held on April 5, 2023, authorizing the Executive Board to take all necessary measures to call the AGM.

7. Closing: There being no further business, the Meeting was closed, from which these minutes were drawn up, read, approved and signed by the attending Directors and Secretary.

São Paulo, February 17, 2023.

Paulo Sergio Coutinho Galvão Filho - Chairman, Joaquim Miró Neto - Secretary, Wolff Klabin, Amanda Klabin, Horacio Lafer Piva, Roberto Klabin Martins Xavier, Alberto Klabin, Celso Lafer, Roberto Luiz Leme Klabin, Camilo Marcantonio, Sérgio Francisco Monteiro de Carvalho Guimarães, Vera Lafer, Francisco Lafer Pati, Mauro Rodrigues da Cunha e Isabella Saboya de Albuquerque.

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I hereby certify that the above text is the authentic one of the minutes of the Special Meeting of the Board of Directors held on February 17, 2023, at 10:00 am, drawn up in proper book.

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Joaquim Miró Neto

Secretary