UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549
FORM 6-K
REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934
For the month of December, 2024.
Commission File Number 001-38755
Suzano S.A.
(Exact name of registrant as specified in its charter)
SUZANO INC.
(Translation of Registrant’s Name into English)
Av. Professor Magalhaes Neto, 1,752
10th Floor, Rooms 1010 and 1011
Salvador, Brazil 41 810-012
(Address of principal executive office)
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form 20-F ☑    Form 40-F ☐
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐

Enclosures:



SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
Date: December 12th, 2024
SUZANO S.A.
By:/s/ Marcos Moreno Chagas Assumpção
Name:Marcos Moreno Chagas Assumpção
Title:Vice-President of Finance and Investor Relations

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SUZANO S.A.
Publicly Held Company
Corporate Taxpayer ID (CNPJ/MF) No. 16.404.287/0001-55
Company Registry (NIRE) 29.3.0001633-1


MATERIAL FACT

São Paulo, December 12, 2024 – Suzano S.A. (“Company” or “Suzano”) (B3: SUZB3 / NYSE: SUZ), in compliance with CVM Instruction 44 of August 23, 2021, and CVM Instruction 480 of December 7, 2009 (“CVM Instruction 480/09”), as amended, in line with corporate governance best practices, hereby announces the updated estimates of long-term operational expenditure in its pulp business.
1. Long-term estimates of operational expenditure in Suzano’s pulp business
The long-term outlook for the operating performance of the Company’s pulp business expected for 2027 considers the following drivers in relation to the estimate disclosed earlier: (i) inflation adjustment estimated for 2025 and the variation in inflation indices (IPCA, INPC and IGPM) observed in 2024 related to the forecast for that year; (ii) exchange rate variation; and (iii) updates related to operational costs and management initiatives aiming for greater structural competitiveness.
In view of the above, Suzano updates its estimated total operational expenditure to R$1,900 per tonne in 2027. This estimate takes into account the following operational expenditures: pulp production cash cost (including scheduled downtimes) of R$746 per tonne; logistics, selling and administrative costs and expenses of R$654 per tonne; and maintenance capex of R$500 per tonne.
The above estimates reflect actual amounts and do not consider expectations or assumptions regarding inflation or exchange variation for 2026 onwards. The estimates also consider the Company operating at full capacity.
2. Period projected and period of validity of estimates of total operational expenditure in Suzano’s pulp business
The period projected covers the evolution in the operating performance of the Company’s pulp business over the next three years, and the above amounts are expected to be achieved in 2027.
3. Update of Reference Form
The Company also clarifies that item 3 of the Reference Form will be duly updated within the deadline set in CVM Resolution 80/22.
By disclosing the information contained in this Material Fact notice, the Company reaffirms its commitment to transparency with its shareholders, investors and the market and will keep them adequately informed of any significant change in the estimated long-term operational performance announced.
The estimates shown here merely reflect the current estimates or expectations of the Company's management, are subject to risks and uncertainties, and in no way constitute a promise of performance. These estimates represent forward-looking statements within the meaning of Section 27A of the U.S. Securities Act of 1933, as amended, and Section 21E of the U.S. Securities Exchange

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Act of 1934, as amended. The terms "anticipates," "believes," "expects," "foresees," "intends," "plans," "projects," "aims," "shall" and other similar terms aim to identify such forecasts, which evidently involve risks or uncertainties that may or not be foreseen by the Company. Information on business prospects, projections and financial targets constitutes mere forecasts based on management's current expectations regarding the future of the Company and its subsidiaries. These expectations depend on market conditions and on the economic scenario in Brazil and the countries where the Company operates and the sectors in which it operates. Any change in the perception or the factors described above could cause actual results to differ from the estimates presented here.


São Paulo, December 12, 2024.
Marcos Moreno Chagas Assumpção
Vice President - Finance and Investor Relations

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