Suzano S A : Voting Agreement - Form 6-K

INDEX

CONSOLIDATED BALANCE SHEET	1
CONSOLIDATED STATEMENTS OF INCOME (LOSS)	3
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)	4
CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY	5
CONSOLIDATED STATEMENTS OF CASH FLOW	6
1 COMPANY'S OPERATIONS	7
2 BASIS OF PREPARATION AND PRESENTATION OF UNAUDITED CONDENSED CONSOLIDATED FINANCIAL INFORMATION	11
3 SUMMARY OF MATERIAL ACCOUNTING POLICIES	11
4 FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT	12
5 CASH AND CASH EQUIVALENTS	24
6 MARKETABLE SECURITIES	24
7 TRADE ACCOUNTS RECEIVABLE	25
8 INVENTORIES	26
9 RECOVERABLE TAXES	27
10 ADVANCES TO SUPPLIERS	28
11 RELATED PARTIES	28
12 INCOME AND SOCIAL CONTRIBUTION TAXES	30
13 BIOLOGICAL ASSETS	34
14 INVESTMENTS	35
15 PROPERTY, PLANT AND EQUIPMENT	36
16 INTANGIBLE	37
17 TRADE ACCOUNTS PAYABLE	38
18 LOANS, FINANCING AND DEBENTURES	39
19 LEASES	42
20 PROVISION FOR JUDICIAL LIABILITIES	43
21 EMPLOYEE BENEFIT PLANS	45
22 SHARE-BASED COMPENSATION PLAN	46
23 LIABILITIES FOR ASSETS ACQUISITIONS AND SUBSIDIARIES	47
24 SHAREHOLDERS' EQUITY	47
25 EARNINGS PER SHARE	48
26 NET FINANCIAL RESULT	49
27 NET SALES	50
28 SEGMENT INFORMATION	50
29 INCOME (EXPENSES) BY NATURE	52
30 EVENT AFTER THE REPORTING PERIOD	52

CONSOLIDATED BALANCE SHEET

The accompanying notes are an integral part of this unaudited condensed consolidated interim financial information.

CONSOLIDATED BALANCE SHEET

The accompanying notes are an integral part of this unaudited condensed consolidated interim financial information.

CONSOLIDATED STATEMENTS OF INCOME (LOSS)

The accompanying notes are an integral part of this unaudited condensed consolidated interim financial information.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

The accompanying notes are an integral part of this unaudited condensed consolidated interim financial information.

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

The accompanying notes are an integral part of this unaudited condensed consolidated interim financial information.

CONSOLIDATED STATEMENTS OF CASH FLOW

The accompanying notes are an integral part of this unaudited condensed consolidated interim financial information.

.

1 COMPANY'S OPERATIONS

Suzano S.A. ("Suzano") and its subsidiaries (collectively the "Company") is a public company with its headquarters in Brazil, at Avenida Professor Magalhães Neto, No. 1,752 - 10th floor, rooms 1010 and 1011, Bairro Pituba, in the city of Salvador, State of Bahia, and its main business office in the city of São Paulo.

Suzano's shares are traded on B3 S.A. ("Brasil, Bolsa, Balcão - "B3"), listed in the New Market under the ticker SUZB3, and its American Depositary Receipts ("ADRs") in a ratio of 1 (one) per common share, Level II, are traded in the New York Stock Exchange ("NYSE") under the ticker SUZ.

The Company has 13 industrial units, located in the cities of Cachoeiro de Itapemirim and Aracruz (Espírito Santo State), Belém (Pará State), Eunápolis and Mucuri (Bahia State), Maracanaú (Ceará State), Imperatriz (Maranhão State), Jacareí, Limeira, Mogi das Cruzes and two units in Suzano, (São Paulo State) and Três Lagoas (Mato Grosso do Sul State). Additionally, it has four technology centers, 30 distribution centers and four ports, all located in Brazil.

These units produce hardwood pulp from eucalyptus, coated paper, paperboard, uncoated paper and cut size paper and packages of sanitary paper (consumer goods - tissue) to serve the domestic and foreign markets.

Pulp and paper are sold in foreign markets by Suzano, as well as through its wholly-owned subsidiaries and/or its sales offices in Argentina, Austria, China, Ecuador, United States of America and Singapore.

The Company's operations also include the commercial management of eucalyptus forest for its own use, the operation of port terminals, and the holding of interests, as a partner or shareholder, in other companies or enterprises, and the generation of electricity in the pulp production process and its commercialization.

The Company is controlled by Suzano Holding S.A., through a voting agreement whereby it holds 47.70% of the common shares of its share capital.

These unaudited condensed consolidated interim financial information was authorized by the Board of Directors on May 07, 2024.

1.1 Equity interests

The Company holds equity interests in the following entities:

(1)On March 27, 2024, the entity was liquidated.

(2)On March 8, 2024, Suzano Ventures LLC acquired equity interest in the legal entity Nfinite Nanotechnology Inc., which is an indirect subsidiary of Suzano S.A.

1.2 Major events in the three-month period ended March 31, 2024

1.2.1 Effects of the war between Russia and Ukraine, and Middle East conflict

The Company has continuously monitored the impacts of the current war between Russia and Ukraine, and the Middle East conflict, both direct and indirect, on society, the economy and markets (global and domestic), with the objective of evaluating possible impacts and risks for the business.

The Company's assessment has covered five main areas:

(i)Personnel: Suzano has local employees and facilities in the city of Rehovot in Israel, through its subsidiary, FuturaGene Israel Ltd. The Company continuously monitors the situation.

In the context of the conflict between Russia and Ukraine, Suzano does not have employees or facilities of any kind in locations related to the conflict.

(ii)Supply Chain: the Company did not identify any short-term or long-term risk of possible interruptions or shortages of materials for its industrial and forestry activities. So far, the only effects observed have been greater volatility in commodities and energy prices.

(iii)Logistics: internationally, there was no change in the Company's logistical operations, with all the routes used remaining unchanged and the moorings in the planned locations being maintained. At the domestic level, no changes in logistical flows were identified.

(iv)Commercial: to date, the Company has continued with its transactions as planned, maintaining service to its customers in all its sectors of activity. Sales to a few customers located in Russia were suspended, without any significant financial impact.

(v)Continuity of operations: The conflict in Israel may result in disruptions to biotechnology research and development operations at FuturaGene Israel Ltd.

As a result of the current scenario, the Company has taken steps to expand its monitoring of the situation, together with its main stakeholders, in order to ensure any updates and information flows required for its global decision-making are available in a timely manner.

1.2.2 Cerrado Project

On October 28, 2021, the Company's Board of Directors approved the realization of the Cerrado Project, which consists of building a pulp production mill in the municipality of Ribas do Rio Pardo, in the state of Mato Grosso do Sul.

The plant will have an estimated nominal capacity of 2,550,000 tons of eucalyptus pulp production per year, with an estimated period for starting operations in the first semester of 2024. The total investment is R$22,200,000, with substantial payments during the years of 2021 to 2025.

1.2.3 Cancellation of shares and new share buyback program

On January 26, 2024, the Board of Directors approved the cancellation of 20,000,000 common shares, with an average cost of R$42.69 (forty-two reais and sixty-nine cents) per share, in the amount of R$853,725, which were held in treasury, without changing the share capital and against the balances of retained earnings reserves available. After the cancellation of the shares, the share capital of R$9,269,281 is divided into 1,304,117,615 common shares, all nominative, book-entry and with no par value.

On the same date, the Company decided on a new share buyback program, in which it may acquire up to a maximum of 40,000,000 (forty million) common shares of its own issue with a maximum period of 18 (eighteen) months, which will end on July 26, 2025.

2 BASIS OF PREPARATION AND PRESENTATION OF UNAUDITED CONDENSED CONSOLIDATED FINANCIAL INFORMATION

The Company's unaudited condensed consolidated interim financial information, for the three-month period ended March 31, 2024, are prepared in compliance with the international standard IAS 34 Interim Financial Reporting issued by the International Accounting Standards Board ("IASB") and disclose all the applicable significant information related to the financial information, which is consistent with the information used by Management in the performance of its duties.

The Company's unaudited condensed consolidated interim financial information are expressed in thousands of Brazilian Reais ("R$"), as well as the amounts of other currencies, when applicable, were also expressed in thousands, unless otherwise stated.

The preparation of unaudited condensed consolidated interim financial information requires Management to make judgments, use estimates and adopt policies in the process of applying accounting practices that affect the disclosed amounts of revenues, expenses, assets and liabilities, including the disclosure of contingent liabilities assumed. However, the uncertainty inherent to these judgements, assumptions and estimates could result in material adjustments to the carrying amount of certain assets and liabilities in future periods.

The Company reviews its judgments, estimates and assumptions continually as disclosed in the annual financial statements for the year ended December 31, 2023 (Note 3.2.34). For the three-month period ended March 31, 2024, there were no changes in these judgments, estimates and assumptions compared to disclosed on December 31, 2023.

The unaudited condensed consolidated interim financial information was prepared on historical cost basis, except for the following material items recognized:

(i)Derivative and non-derivative financial instruments measured at fair value;

(ii)Share-based payments and employee benefits measured at fair value; and

(iii)Biological assets measured at fair value;

The unaudited condensed consolidated interim financial information was prepared under the going concern assumption.

3 SUMMARY OF MATERIAL ACCOUNTING POLICIES

The unaudited condensed consolidated interim financial information was prepared based on the information of Suzano and its subsidiaries on the same base date, except for associates Ensyn, Futuragene and Spinnova, as well as in accordance with consistent accounting policies and practices.

The unaudited condensed consolidated interim financial information should be read in conjunction with the annual financial statements for the year ended December 31, 2023, considering that its purpose is to provide an update on the activities, events and significant circumstances in relation to those disclosed in the consolidated financial statements. Therefore, unaudited condensed consolidated interim financial information focus on new activities, events and circumstances and do not duplicate the information previously disclosed, except when Management judges that the maintenance of the information is relevant.

The accounting policies have been consistently applied to all consolidated companies.

There were no changes on such policies and estimates calculation methodologies, which were disclosed in the annual financial statements of December 31, 2023.

4 FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT

4.1 Financial risks management

4.1.1 Overview

In the three-month period ended March 31, 2024, there were no significant changes in the financial risk management policies and procedures compared to those disclosed in the annual financial statements for the year ended December 31, 2023 (Note 4).

The Company maintained its conservative approach and strong cash and marketable securities position, as well as its hedging policy.

4.1.2 Classification

All transactions with financial instruments are recognized for accounting purposes and classified in the following categories:

(1)Does not include items not classified as financial instruments.

4.1.3 Fair value of loans and financing

The estimated fair values of loans and financing are set forth below:

The book values of loans and financing are disclosed in Note 18.

Management considers that, for its other financial assets and liabilities measured at amortized cost, their book values approximate their fair values, and therefore the fair value information is not being presented.

4.2 Liquidity risk management

The Company's purpose is to maintain a strong cash and marketable securities position to meet its financial and operating commitments. The amount held in cash is intended to cover the expected outflows in the normal course of its operations, while the cash surplus is generally invested in highly liquid financial investments according to the Cash Management Policy.

The cash position is monitored by the Company's Management, by means of management reports and participation in performance meetings with determined frequencies. During the three-month period ended March 31, 2024, the variations in cash and marketable securities were as expected, and the cash generated from operations was mostly used for investments and debt service.

All derivative financial instruments were traded over the counter and do not require deposit guarantee margins.

The remaining contractual maturities of financial liabilities are presented as of the balance sheet date. The amounts as set forth below consist of undiscounted cash flow, and include interest payments and exchange rate variations, and therefore may not reconcile with the amounts disclosed in the balance sheet.

4.3 Credit risk management

In the three-month period ended March 31, 2024, there were no significant changes in the credit risk management policies compared to those disclosed in the annual financial statements for the year ended of December 31, 2023 (Note 4).

4.4 Market risk management

In the three-month period ended March 31, 2024, there were no significant changes in the market risk management policies and procedures compared to those disclosed in the annual financial statements for the year ended December 31, 2023 (Note 4).

4.4.1 Exchange rate risk management

As disclosed in the financial statements for the year ended December 31, 2023 (Note 4), the Company enters into U.S.Dollar selling transactions in the futures markets, including strategies involving options, to ensure attractive levels of operating margins for a portion of revenue. Such transactions are limited to a percentage of the net surplus foreign currency over a 24-months' time horizon and therefore, are matched to the availability of currency for sale in the short term. The Company's Board of Directors approved the contracting of extraordinary hedge, in addition to the strategy mentioned above, for investments in the Cerrado Project, with a term of up to 36 months as of November 2021, in an amount of up to US$1,000,000. On July 27, 2022, the Board of Directors approved the expansion of the program, increasing the maximum amount (notional) to US$1,500,000, maintaining the previously established deadline. In order to provide transparency on the hedge program for the Cerrado Project, since December 31, 2021 the Company has started to prominently disclose the respective contracted operations.

The assets and liabilities that are exposed to foreign currency, substantially in U.S. Dollars, are set forth below:

4.4.1.1 Sensitivity analysis - foreign exchange rate exposure - except for derivative financial instruments

For market risk analysis, the Company uses scenarios to evaluate both its asset and liability positions in foreign currency, and the possible effects on its results. The probable scenario represents the amounts recognized, as they reflect the conversion into Brazilian Reais on the balance sheet date (R$ to U.S.$ = R$4.9962).

This analysis assumes that all other variables, particularly interest rates, remain constant. The other scenarios considered the depreciation of the Brazilian Real against the U.S. Dollar at the rates of 25% and 50% before taxes.

The following table set forth the potential impacts at their absolute amounts:

4.4.1.2 Sensitivity analysis - foreign exchange rate exposure - derivative financial instruments

The Company has sales operations in US$ in the futures markets, including strategies using options, to ensure attractive levels of operating margins for a portion of its revenue. These operations are limited to a percentage of the total exposure to US$ over a 24-month horizon, or to investments in the Cerrado Project, according to the extraordinary hedge described above, and are therefore pegged to the availability of ready-to-sell foreign exchange in the short term.

In addition to the transaction described above, the Company also taken out derivative instruments linked to the US$ and subject to exchange fluctuations, seeking to adjust the debt's currency indexation to the cash generation currency, as provided for in its financial policies.

For the calculation of the mark-to-market ("MtM") price, the exchange rate of the last business day of the period is used. These market movements caused a negative impact on the mark-to-market position entered into by the Company.

This analysis below assumes that all other variables, particularly the interest rates, remain constant. The other scenarios considered the depreciation of the Brazilian Real against the US$ by 25% and 50%, before taxes, based on the base scenario on March 31, 2024.

The following table set out the possible impacts assuming these scenarios:

(1)Long positions at US$/EUR parity in order to protect the Capex cash flow of the Cerrado Project against the appreciation of the Euro.

4.4.2 Interest rate risk management

Fluctuations in interest rates could increase or reduce the costs of new loans and existing contracted operations.

The Company is constantly looking for alternatives for the use of financial instruments in order to avoid negative impacts on its cash flow due to fluctuations in interest rates in Brazil or abroad.

4.4.2.1 Sensitivity analysis - exposure to interest rates - except for derivative financial instruments

For its market risk analysis, the Company uses scenarios to evaluate the sensitivity of changes in operations impacted by the following rates: Interbank Deposit Rate ("CDI"), Long Term Interest Rate ("TJLP"), Special System for Settlement and Custody ("SELIC") and SOFR, which could impact the results. The probable scenario represents the amounts already booked, as they reflect Management's best estimates.

This analysis assumes that all other variables, particularly exchange rates, will remain constant. The other scenarios considered a depreciation of 25% and 50% in market interest rates.

The following table set forth the possible impacts assuming these scenarios in absolute amounts:

4.4.2.2 Sensitivity analysis - exposure to interest rates - derivative financial instruments

This analysis assumes that all other variables remain constant. The other scenarios considered a depreciation of 25% and 50% in market interest rates.

The following table sets out the possible impacts of these assumed scenarios:

4.4.2.3 Sensitivity analysis to changes in the consumer price indices of the US economy

For the measurement of the probable scenario, the United States Consumer Price Index ("US-CPI") was considered on March 31, 2024. The probable scenario was extrapolated considering a depreciation of 25% and 50% in the US-CPI to define the possible and remote scenarios, respectively.

The following table sets out the possible impacts, assuming these scenarios in absolute amounts:

4.4.3 Commodity price risk management

The Company is exposed to commodity prices, mainly in the selling price of pulp in the international market. The dynamics of rising and falling production capacities in the global market and macroeconomic conditions may impact the Company´s operating results.

Through a specialized team, the Company monitors hardwood pulp prices and analyses future trends, adjusting the forecasts aimed at assisting with preventive measures to calculate the different scenarios. There is no sufficiently liquid financial market to mitigate the risk of a material portion of the Company's operations. Hardwood pulp price protection instruments available on the market have low liquidity and low volume, and high levels of distortion in price formation.

The Company is also exposed to international oil prices, reflected in logistical costs for selling in the export market, and indirectly in the costs of other supply, logistics and service contracts. In such cases, the Company evaluates whether to contract derivative financial instruments to mitigate the risk of price variations in its results.

4.5 Derivative financial instruments

The Company determines the fair value of derivative contracts, which differ from the amounts realized in the event of early settlement due to bank spreads and market factors at the time of quotation. The amounts presented by the Company are based on an estimate using market factors and use data provided by third parties, measured internally and compared to calculations performed by external consultants and by counterparties.

Details of derivative financial instruments and their respective calculation methodologies are disclosed in the annual financial statements for the year ended December 31, 2023 (Note 4).

4.5.1 Outstanding derivatives by contract type, including embedded derivatives

The positions of outstanding derivatives are set forth below:

(1)The embedded derivative refers to a swap contract for the sale of price variations in United States Dollars and US-CPI within the term of a forest partnership with a standing wood supply contract.

The current contracts and the respective protected risks are set forth below:

(i)Swap CDI x Fixed US$: positions in conventional swaps exchanging the variation of the Interbank Deposit rate ("DI") for a fixed rate in United States Dollars ("US$"). The objective is to change the debt indexed in Brazilian Reais to US$, in compliance with the Company's natural exposure to US$ receivables.

(ii)Swap IPCA x CDI (notional in Brazilian Reais): positions in conventional swaps exchanging the variation of the Amplified Consumer Price Index ("IPCA") for the DI rate. The objective is to change the debt indexed in reais, in compliance with the Company's cash position in Brazilian Reais, which is also indexed to DI.

(iii)Swap SOFR x Fixed US$: positions in conventional swaps exchanging a post-fixed rate (SOFR) for a fixed rate in US$. The objective is to protect the cash flow against changes in the US interest rate.

(iv)Pre-Fixed Swap R$ x Fixed US$: positions in conventional swaps of a fixed rate in Reais for a fixed rate in US$. The objective is to change the exposure of debts in Brazilian Reais to US$, in compliance with the Company's natural exposure to US$ receivables.

(v)SOFR x SOFR Swap: swap position exchanging a fixed rate added to SOFR for another fixed rate added to SOFR. The objective is to generate a fee discount for Prepayment with the banking institution, allowing for reversal mechanisms.

(vi)CDI x SOFRSwap: positions in conventional swaps exchanging the variation in the Interbank Deposit rate ("DI") for a post-fixed rate ("SOFR") in United States Dollars ("US$"). The objective is to change the debt index in reais to US$, aligning with the natural exposure of the Company's US$ receivables and capturing a lower cost of debt through the fluctuation of SOFR rate projections.

(vii)Zero Cost Collar: positions in an instrument that consists of the simultaneous combination of a purchase of put options and the sale of call options in US$, with the same principal amount and maturity, with the objective of protecting the cash flow of exports. Under this strategy, an interval is established where there is no deposit or receipt of financial margin at the option maturity. The objective is to protect the cash flow of exports against the depreciation of the Brazilian Real.

(viii)Non-Deliverable Forward contracts ("NDF"): short positions in US$ futures contracts with the objective of protecting the cash flow from exports against the depreciation of the Brazilian Real.

(ix)Swap US-CPI: The embedded derivative refers to the swap contracts for selling price variations in US$ and the US-CPI in forest partnership with a standing wood supply contract.

(x)Non-Deliverable Forward contracts: EUR and US$: call positions at EUR/US$ parity to protect the Capex cash flow of the Cerrado project against the appreciation of the Euro.

(xi)Swap Very Low Sulphur Fuel Oil / Brent ("VLSFO"): Long positions in oil, aimed at hedging logistical costs related to maritime freight contracts against the increase in oil prices.

(xii)Zero Cost Collar (Brent): positions in an instrument that consists of the simultaneous combination of buying call options and selling put options for oil - Brent, with the same principal value and maturity, with the objective of protecting input costs of oil derivatives. In this strategy, an interval is established where there is no deposit or receipt of financial margin at the expiration of the options. The objective is to protect costs against rising oil prices.

The variation in the fair values of derivatives on March 31, 2024 compared to the fair values measured on December 31, 2023 are explained substantially by the depreciation of the Brazilian Real against the US Dollar and by settlements during the period. There were also impacts caused by the variations in the Pre Fixed, Foreign Exchange Coupon and SOFR curves in the operations.

It is important to highlight that the outstanding agreements on March 31, 2024 are over-the-counter market operations, without any type of collateral margin or forced early settlement clause due to variations from market marking.

4.5.2 Fair Value Maturity Schedule

4.5.3 Outstanding assets and liabilities derivatives positions

The outstanding derivatives positions are set forth below:

(1)The embedded derivative refers to the swap contracts for selling price variations in US$ and the US-CPI in forest partnership with a standing wood supply contract.

4.5.4 Fair value settled amounts

The settled derivatives positions are set forth below:

4.6 Fair value hierarchy

Financial instruments are measured at fair value, which considers the fair value as the price that would be received from selling an asset or paid to transfer a liability in an unforced transaction between market participants at the measurement date.

For the three-month period ended March 31, 2024, there were no changes between the 3 (three) levels of hierarchy and no transfers between levels 2 and 3.

4.7 Cybersecurity

Suzano has a Public Information Security Policy, which aims to establish guidelines regarding cyber security management and controls at Suzano, seeking to mitigate vulnerabilities, preserve and protect assets, mainly information and personal data, in accordance with current laws, regulations and contractual obligations, covering the confidentiality, integrity, availability, authenticity and legality of information. The Policy establishes responsibilities to avoid damages, which may represent financial impacts, image and reputation, exposure of information, interruption of operations, among other damages due to cyber-attacks.

For the three-month period ended March 31, 2024, no material incidents associated with cybersecurity were identified that could affect the confidentiality, integrity and/or availability of the systems used by the Company.

4.8 Climate change

In the annual financial statements for the year ended December 31, 2023, the risks and opportunities information linked to climate change and the sustainability strategy were disclosed, which did not change significant during the three-month period ended March 31, 2024.

4.9 Capital management

The main objective is to strengthen the Company's capital structure, aiming to maintain an appropriate level of financial leverage while mitigating risks that could affect the availability of capital for business development.

The Company continuously monitors significant indicators, such as consolidated financial leverage, which is the ratio of total net debt to adjusted Earnings Before Interest, Taxes, Depreciation, and Amortization ("Adjusted EBITDA").

5 CASH AND CASH EQUIVALENTS

(1)Refers mainly to investments in foreign currency under the Sweep Account modality, which is a remunerated account the balance of which is invested and made available automatically each day.

6 MARKETABLE SECURITIES

(1)Acquisition of Brazil National Treasury Notes indexed to IPCA (NTN-B)

(2)Includes escrow accounts, which will be released only after obtaining the applicable governmental approvals, and pending compliance by the Company with the conditions precedent in transactions involving the sale of rural properties.

(3)Refers to Time Deposit investments, with maturities over 90 days, which are remunerated bank deposits with specific maturity periods.

7 TRADE ACCOUNTS RECEIVABLE

7.1 Breakdown of balances

(1)The balance refers to transactions with Ibema Companhia Brasileira de Papel.

The Company carries out factoring transactions for certain customer receivables where transfers the control and all risks and rewards related to these receivables to the counterparty, so these receivables are derecognized from accounts receivable in the balance sheet. This transaction refers to an additional cash generation opportunity and is therefore classified as a financial asset measured at amortized cost. The impact of these factoring transactions on the accounts receivable as of March 31, 2024, was R$4,148,287 (R$4,273,623 as of December 31, 2023).

7.2 Breakdown of trade accounts receivable by maturity

7.3 Roll-forward of expected credit losses

The Company maintains guarantees for overdue receivables as part of its commercial operations, through credit insurance policies, letters of credit and other guarantees. These guarantees avoid the need to recognize expected credit losses, in accordance with the Company's credit policy.

7.4 Main customers

The Company has 1 (one) customer responsible for 11.75% of the net sales of pulp segment on March 31, 2024 (10.27% on December 31, 2023) and no main customers responsible for more than 10% of the net sales of paper segment on March 31, 2024 and December 31, 2023.

8 INVENTORIES

8.1 Roll-forward of estimated losses

On March 31, 2024, and December 31, 2023, there were no inventory items pledged as collateral.

9 RECOVERABLE TAXES

(1)Social Integration Program ("PIS") and Social Security Funding Contribution ("COFINS"): Credits whose realization is based on the years of depreciation of the corresponding asset.

(2)The Company and its subsidiaries filed lawsuits over the years seeking the exclusion of ICMS from the PIS and COFINS contribution tax basis, in relation to certain transactions during various periods from March 1992.

(3)Tax on Sales and Services ("ICMS"): Credits from the acquisition of property, plant and equipment are recovered on a straight-line basis over a four-year period, from the acquisition date, in accordance with the relevant regulation, the ICMS Control on Property, Plant and Equipment ("CIAP").

(4)ICMS credits accrued due to the volume of exports and credit generated from product import transactions: Credits are concentrated in the States of Espírito Santo, Maranhão, Mato Grosso do Sul e São Paulo, where the Company realizes the credits through the sale of credits to third parties, after approval from the State Ministry of Finance of each State. Credits are also being realized through the consumption of consumer goods (tissue) transactions in the domestic market.

(5)Special Regime of Tax Refunds for Export Companies ("Reintegra"): Reintegra is a program that aims to refund the residual costs of taxes paid throughout the export chain to taxpayers, to make them more competitive in foreign markets.

(6)Related to provisions for ICMS credit balances that are not probable to be recovered.

9.1 Roll-forward of provision for loss

(1)Refers, substantially, to the accumulated ICMS credits of the state of Mato Grosso do Sul, arising from the construction operations of the Cerrado Project, and of the state of Espirito Santo, of the accumulated credits due to the volume of exports.

(2)Refers mainly to the reversal of the provision for loss resulting from the recovery of ICMS credits from the State of Espírito Santo through sale to third parties.

10 ADVANCES TO SUPPLIERS

In the annual financial statements for the year ended December 31, 2023, the characteristics of the advances were disclosed, which did not change during the three-month period ended March 31, 2024.

11 RELATED PARTIES

The Company's commercial and financial transactions with the controlling shareholder and Companies owned by the controlling shareholder Suzano Holding S.A. ("Suzano Group") were carried out at specific prices and conditions, as well as the corporate governance practices adopted by the Company, and those recommended and/or required by the applicable legislation.

The transactions refers mainly to:

Assets: (i) accounts receivable from the sale of pulp, paper, tissue and other products; (ii) dividends receivable; (iii) reimbursement for expenses; and (iv) social services;

Liabilities: (i) loan agreements;(ii) reimbursement for expenses; (iii) social services; (iv) real estate consulting; and (v) dividends payable.

Amounts in the statements of income: (i) sale of pulp, paper, tissue and other products; (ii) loan charges and exchange variation; (iii) social services and (viii) real estate consulting.

For the three-month period ended March 31, 2024, there were no material changes in the terms of the agreements, deals and transactions entered into, nor were there any new contracts, agreements or transactions of any different nature entered into between the Company and its related parties.

11.1 Balances recognized in assets and liabilities and amounts of transactions during the period

(1)Refers mainly to the sale of pulp.

11.2 Management compensation

Expenses related to the compensation of key management personnel, which include the Board of Directors, Fiscal Council and Board of Statutory Executive Officers, recognized in the statement of income for the period, are set out below:

Short-term benefits include fixed compensation (salaries and fees, vacation pay, mandatory bonus and "13th month's salary" bonus), payroll charges (Company's share of contributions to social security - "INSS") and variable compensation such as profit sharing, bonuses and benefits (company car, health plan, meal voucher, market voucher, life insurance and private pension plan).

Long-term benefits include the stock option plan and phantom shares for executives and key members of Management, in accordance with the specific regulations disclosed in Note 22.

12 INCOME AND SOCIAL CONTRIBUTION TAXES

The Company calculates income tax and social contribution taxes, current and deferred, based on the following rates: (i) 15% plus an additional 10% on taxable income in excess of R$240 for IRPJ; and (ii) 9% for CSLL, on the net income. Balances are recognized in the Company's income on an accruals basis.

Subsidiaries domiciled in Brazil have their taxes calculated and provisioned in accordance with the current legislation and their specific tax regime, including, in some cases, the presumed profit method. Subsidiaries domiciled abroad are subject to taxation in their respective jurisdictions, according to local regulations.

Deferred income and social contribution taxes are recognized at the net amounts in non-current assets or liabilities.

In Brazil, Law nº. 12,973/14 revoked article 74 of Provisional Measure nº. 2,158/01 and determines that the parcel of the adjustment of the value of the investment in subsidiaries, direct and indirect, domiciled abroad, equivalent to the profit earned by them before income tax, except for exchange rate variation, must be added in the determination of taxable income and the social contribution calculation basis of the controlling entity domiciled in Brazil, at each year ended.

The Company management believes in the validity of the provisions of international treaties entered by Brazil to avoid double taxation. In order to ensure its right to non-double taxation, the Company filed a lawsuit in April 2019, which aims to exempt the double taxation in Brazil, of profits earned by its subsidiary located in Austria, according to Law No. 12,973/14. Due to the preliminary injunction granted in favor of the Company in the aforementioned lawsuit, the Company decided not to add the profit from Suzano International Trading GmbH, located in Austria, when determining its taxable income and social contribution basis of the net profit of the Company for the three-month period ended March 31, 2024. There is no provision for tax related to the non-double taxation profits of such subsidiary in 2024.

12.1 Deferred taxes

12.1.1 Deferred income and social contribution taxes

(1)Tax depreciation is taken as a benefit only in the income tax calculation bases.

12.1.2 Breakdown of accumulated tax losses and social contribution tax losses carried forward

12.1.3 Roll-forward of deferred tax assets

12.2 Reconciliation of the effects of income tax and social contribution on profit or loss

(1)The difference in the taxation of subsidiaries is substantially due to the differences between the nominal tax rates in Brazil and those of subsidiaries located abroad.

(2)The Brazilian thin capitalization rules establish that interest paid or credited by a Brazilian entity to a related party abroad may only be deducted for income tax and social contribution purposes if the interest expense is viewed as necessary for the activities of the local entity, and when certain limits and requirements are met. On March 31, 2024, all limits and requirements were met, and on March 31, 2023, the Company did not meet all of the limits and requirements, and therefore the expense is not deductible for the period.

12.3 Tax incentives

The Company benefits from a tax incentive for partial reduction of the income tax obtained from operations carried out in areas under the jurisdiction of the Northeast Development Superintendence ("SUDENE") and the Superintendence of Amazon Development ("SUDAM"). The IRPJ reduction incentive is calculated based on the activity profits (exploitation profits) and considers the allocation of the operating profit based on the incentive production levels for each product.

12.4 OECD PILLAR TWO MODEL RULES

In December 2021, the Organisation for Economic Co-operation and Development ("OECD") released of the Pillar Two model, to reform international corporate taxation to ensure that multinational economic groups, covered by such regulations, contribute an effective minimum tax at the rate 15% on profit. Each country's effective profit tax rate, as calculated by this model, is called the GloBE (Global Anti-Base Erosion Rules) effective tax rate. These rules await approval in the local legislation of each country. In the context of Suzano, compliance with OECD guidelines on international taxation is a strategic priority.

Many countries have already released legislation or plans on the adoption of Pillar Two rules and the calculation of GloBE revenue, considering the global minimum rate of 15% for multinationals with consolidated revenue above EUR750 million.

The Company is monitoring the jurisdictions where the legislation was approved and is in force, as well as the progress of the legislative process in other countries, in order to map the potential effects on its operations.

From 2024, the Company is subject to OECD Pillar Two model rules in some European jurisdictions where it operates, with relevant operations only in Austria. There was no material impact on this unaudited condensed consolidated interim financial information due to this topic.

13 BIOLOGICAL ASSETS

The roll-forward of biological assets is as set forth below:

The Company reevaluates, on a semi-annual basis in June and December, the main assumptions used in measuring the fair value of biological assets, which are disclosed in Note 13 of the annual financial statements for the year ended December 31, 2023.

The Company has no biological assets pledged as collateral on March 31, 2024 and December 31, 2023.

14 INVESTMENTS

14.1 Investments breakdown

14.2 Investments in associates and joint ventures

(1)The average share price quoted on the Nasdaq First North Growth Market (NFNGM) was EUR1.74 (one euro and seventy four cents) on March 31, 2024 and (EUR2.40 (two euros and forty cents) in December 31, 2023).

15 PROPERTY, PLANT AND EQUIPMENT

(1)Includes vehicles, furniture and utensils and computer equipment.

(2)The addition of work in progress refers, mainly to the Cerrado Project, of which R$364,440 is a non-cash effect in the period.

On March 31, 2024, the Company evaluated the business, market and climate impacts, and did not identify any event that indicated the need to perform an impairment test and to record any impairment provision for property, plant and equipment.

15.1 Items pledged as collateral

On March 31, 2024, property, plant and equipment items pledged as collateral for loan transactions and legal proceedings, consisting mainly of the units of Três Lagoas and Imperatriz totalling R$16,188,787 (R$16,332,447 in the same units as at December 31, 2023).

15.2 Capitalized expenses

For the three-month period ended March 31, 2024, the Company capitalized loan costs in the amount of R$377,560 (R$1,160,364 as of December 31, 2023). The weighted average interest rate, adjusted by the equalization of the exchange rate effects, utilized to determine the capitalized amount was 10.50% p.a. (10.98% p.a. as of December 31, 2023).

16 INTANGIBLE

16.1 Goodwill and intangible assets with indefinite useful lives

(1)Refers to the goodwill of the MMC Brasil business combination.

(2)Refers to other intangible assets with indefinite useful lives such as servitude of passage and electricity.

The goodwill is based on expected future profitability supported by valuation reports, after the purchase price allocation.

Goodwill is allocated to cash-generating units as presented in Note 28.4.

For the three-month period ended March 31, 2024, the Company did not identify any event that indicated the need to perform the impairment test and to record any impairment provision for intangible assets.

16.2 Intangible assets with limited useful lives

17 TRADE ACCOUNTS PAYABLE

(1)Within the balance of suppliers, there are values under supplier finance arrangement that were subject to anticipation with financial institutions at the exclusive option of certain suppliers, without changing the originally defined purchase conditions (payment terms and negotiated prices). The balance related to such operations on March 31, 2024 was R$301,731 (R$281,350 at December 31, 2023).

(2)Within the balance of suppliers, the following balances refer to the Cerrado Project, R$621,691 (R$523,408 on December 31, 2023) in local currency and R$617,304 (R$1,080,028 on December 31, 2023) in foreign currency.

(3)The balance refers mainly to transactions with Ibema Companhia Brasileira de Papel.

18 LOANS, FINANCING AND DEBENTURES

18.1 Breakdown by type

18.2 Breakdown by maturity - non-current

18.3 Roll-forward of loans, financing and debentures

18.4 Breakdown by currency

18.5 Fundraising costs

The fundraising costs are amortized based on the terms of agreements and the effective interest rate.

18.6 Guarantees

Some loan and financing agreements have guarantees clauses, in which the financed equipment or other property, plant and equipment is offered as collateral by the Company, as disclosed in Note 15.1.

The Company does not have contracts with restrictive financial clauses (financial covenants) which must be complied with.

18.7 Relevant transactions entered into during the period

18.7.1 Export Prepayment

On February 15, 2024, the Company raised, with several banks (a syndicated operation), an export prepayment ("EPP") in the amount of US$780,000 (equivalent to R$3,897,036), at a floating rate based on SOFR + 1.65% p.a (increasing by 0.05% p.a until maturity), with final maturity in February 2029, as part of the rollover process of a partially settled EPP on the same date.

18.7.2 Rural Credit Note

On March 28, 2024, the Company raised, with Safra Bank, a Rural Credit Note in the amount of R$200,000, with a post-fixed interest rate of 100% of the CDI, with final maturity in March 2025.

18.8 Significant transactions settled during the period

On February 15, 2024, the Company partially settled, in advance, a pre-export facility with several banks (a syndicated operation), in the total amount of US$620,000 (equivalent to R$3,209,057). The residual amount of this operation maintained its original maturity in February 2026, with a floating rate based on SOFR + 1.41% p.a.

19 LEASES

19.1 Right of use

The balances rolled-forward are set out below:

(1)The amount of depreciation related to land is substantially reclassified to biological assets to make up the formation costs.

(2)Write-off due to cancellation of contracts.

For the three-month period ended March 31, 2024, the Company does not have commitments to lease agreements not yet in force.

19.2 Lease liabilities

The balance of lease payables on March 31, 2024, measured at present value and discounted at the respective discount rates are set forth below:

(1)To determine the discount rates, quotes were obtained from financial institutions for agreements with characteristics and average terms similar to the lease agreements.

(2)Refers to the original maturities of the agreements and, therefore, does not consider eventual renewal clauses.

The balances rolled-forward are set out below:

(1)On March 31, 2024, the amount of R$57,846 related to interest expenses on leased lands was capitalized to biological assets to represent the formation cost (R$178,429 as of December 31, 2023).

(2)Write-off due to cancellation of contracts.

The maturity schedule for future payments not discounted to present value related to lease liabilities is disclosed in Note 4.2.

19.2.1 Amounts recognized in the statement of income for the period

The amounts recognized are set out below:

20 PROVISION FOR JUDICIAL LIABILITIES

The Company is involved in certain legal proceedings arising in the normal course of its business, which include tax, social security, labor, civil, environment and real estate.

The Company classifies the risk of unfavorable decisions in legal proceedings, based on legal advice, which reflects the estimated probable losses.

The Company's Management believes that, based on the available information as of the date of these unaudited condensed consolidated interim financial information, its provisions for tax, social security, labor, civil, environment and real estate risks, accounted for according to IAS 37 are sufficient to cover estimated losses related to its legal proceedings, as set forth below:

20.1 Roll-forward and changes in the provisions for probable losses based on the nature of the proceedings, net of judicial deposits

(1)Amounts arising from tax-related lawsuits with a possible or remote probability of loss in the amount of R$2,012,403 and civil lawsuits in the amount of R$140,470, measured and recorded at the estimated fair value resulting from the business combination with Fibria.

(2)Reversal due to a change in likelihood, cancellation and/or due to settlement.

(1)Amounts arising from tax-related lawsuits with a possible or remote probability of loss in the amount of R$2,448,564 and civil lawsuits in the amount of R$197,141, measured and recorded at the estimated fair value resulting from the business combination with Fibria.

(2)Reversal due to a change in likelihood, cancellation and/or due to settlement.

20.1.1 Tax and social security

On March 31, 2024, the Company has 32 (thirty-two) (32 (thirty-two) as of December 31, 2023) administrative and judicial proceedings of a tax or social security nature in which the disputed matters are related to IRPJ, CSLL, PIS, COFINS, ICMS among others, whose amounts are provisioned when the likelihood of loss is deemed probable by the Company's external legal counsel and by Management.

20.1.2 Labor

On March 31, 2024, the Company has 1,323 (one thousand three hundred twenty-three) (1,241 (one thousand two hundred forty-one) as of December 31, 2023) labor lawsuits.

In general, the provisioned labor proceedings are related primarily to matters frequently contested by employees of agribusiness companies, such as wages and/or severance payments, in addition to suits filed by outsourced employees of the Company.

20.1.3 Civil, environment and real estate

On March 31, 2024, the Company has 83 (eighty-three) (76 (seventy-six) as at December 31, 2023) civil, environmental and real estate proceedings.

The provisioned Civil, environment and real estate proceedings are related primarily to the payment of damages, including those arising from contractual obligations, traffic-related injuries, possessory actions, environmental restoration obligations, claims and others.

20.2 Contingencies with possible losses

The Company is involved in tax, civil and labor lawsuits, whose losses have been assessed as possible by Management, supported by legal counsel, and therefore no provision was recorded:

(1)The amounts above do not include the fair value adjustments allocated to possible loss risk contingencies representing R$2,133,197 (R$2,614,518 as of December 31, 2023), which were recorded at fair value resulting from business combinations with Fibria, as presented in Note 20.1 above.

In the three-month period ended March 31, 2024, there were no significant changes in the main nature of these contingencies compared to those disclosed in the annual financial statements for the year ended December 31, 2023 (Note 20).

20.3 Contingent assets

In the three-month period ended March 31, 2024, there were no significant changes in the main nature of these contingencies compared to those disclosed in the annual financial statements for the year ended December 31, 2023 (Note 20).

21 EMPLOYEE BENEFIT PLANS

The Company provides supplementary pension plan and defined benefit plan, such as medical assistance and life insurance. The characteristics of such benefits were disclosed in the annual financial statements for the year ended December 31, 2023 (Note 21), which did not change during the three-month period ended March 31, 2024.

21.1 Pension plan

Contributions made by the Company, for Suzano Prev pension plan managed by Brasilprev Seguros e Previdência S.A., for the three-month period ended March 31, 2024 amounted R$5,111 (R$3,976 as of March 31, 2023) recognized under the cost of sales, selling and general and administrative expenses.

21.2 Defined benefits plan

The Company offers the medical assistance and life insurancein addition to the pension plans, which are measured based on actuarial calculations and recognized in the unaudited condensed consolidated interim financial information.

The roll-forward of actuarial liabilities prepared based on actuarial report is set forth below:

22 SHARE-BASED COMPENSATION PLAN

The Company has 3 (three) share-based, long-term compensation plans: (i) Phantom stock option plan ("PS"); (ii) Share Appreciation Rights ("SAR"), both settled in local currency; and (iii) restricted shares, settled in shares.

The characteristics and measurement method of each plan were disclosed in the annual financial statements for the year ended December 31, 2023 (Note 22), which did not change during the three-month period ended March 31, 2024.

22.1 Long term compensation plans ("PS and SAR")

The roll-forward arrangements are set out below:

(1)The average price of the share options exercised and exercised due to termination of employment on March 31, 2024 was R$53.24 (fifty-three reais and twenty-four cents) (($58.07 (fifty-eight reais and seven cents) as at December 31, 2023).

22.2 Restricted shares plan

The position is set forth below:

(1)Amounts expressed in Reais.

In the three-month period ended March 31, 2024, the plan granted on January 2, 2021 had its lockup period concluded and, therefore, 111,685 shares were transferred to benefits. The balance of shares delivered was carried out in counterpart to treasury shares (Note 24.2).

22.3 Measurement assumptions

The amounts corresponding to the services received and recognized are set forth below:

23 LIABILITIES FOR ASSETS ACQUISITIONS AND SUBSIDIARIES

(1)Acquired in March 2018, for the amount of R$307,876, upon the payment of R$267,876, with the remainder updated at the IPCA, adjusted for possible losses incurred up to the payment date, with maturity in March 2028.

(2)On August 2014, the Company acquired Vale Florestar S.A. through VFFIP, for a total amount of R$528,941 upon the payment of R$44,998, and the remainder with maturity up to August 2029. The annual settlements, carried out in the month of August, are subject to interest and updated by the variations of the US Dollar exchange rate, and partially updated by the IPCA.

24 SHAREHOLDERS' EQUITY

24.1 Share capital

On March 31, 2024, Suzano's share capital was R$9,269,281 divided into 1,324,117,615 common shares, all nominative, book-entry shares without par value. Expenses related to the public offering were R$33,735, totaling a net share capital of R$9,235,546. The breakdown of the share capital is as set out below:

For the three-month period ended March 31, 2024, SUZB3 common shares ended the period quoted at R$63.98 (sixty-three reais and ninety-eight cents) and R$55.53 (fifty-five reais and fifty-three cents) on December 31, 2023.

24.2 Treasury shares

On March 31, 2024, the Company had 20,649,356 (34,765,600 as of December 31, 2023) of its own common shares held in treasury, with an average cost of R$45.30 (forty-five reais and thirty cents) per share, with a historical value of R$935,473 (R$1,484,014 as at December 31, 2023) and the market corresponding to R$1,321,146 (R$1,934,010 as at December 31, 2023).

On January 26, 2024, (20,000,000) (twenty million) common shares held in treasury were cancelled, as described in Note 1.2.3).

From the approval of the program until March 31, 2024, the company acquired 5,998,000 shares, with a historical value of R$51.68 and corresponding to R$309,952.

On March 31, 2024, the Company granted 114,244 common shares at an average cost of R$41.74 (forty-one reais and seventy-four cents) per share, with a historical value of R$4,768, to comply with the 2021 Program of the restricted shares plan (Note 22.2).

25 EARNINGS PER SHARE

25.1 Basic

The basic earnings (loss) per share is measured by dividing the profit attributable to the Company's shareholders by the weighted average number of common shares issued during the period, excluding the common shares acquired by the Company and held as treasury shares.

25.2 Diluted

The diluted earnings (loss) per share is measured by adjusting the weighted average of outstanding common shares, assuming the conversion of all common shares with dilutive effects.

25.3 Profit reserves

Reserves are constituted by the allocation of the Company's profits, after the allocation for the payment of the minimum mandatory dividends and after the allocation to the various profit reserves.

The next Shareholder's meeting will deliberate on the accumulated income reserve balance that exceeds the limit established in the Company's bylaws.

26 NET FINANCIAL RESULT

(1)Excludes R$377,560 arising from capitalized loan costs, substantially related to property, plant and equipment in progress of the Cerrado Project for the three-month period ended March 31, 2024 (R$233,418 as at March 31, 2023).

(2)In 2024, does not include expenses arising from transaction costs on loans and financing that were recognized directly in the statement of income (R$19 as at March 31, 2023).

(3)Includes R$57,846 referring to the reclassification to the biological assets item for the composition of the formation cost (R$49,946 as of March 31, 2023).

(4)Includes effects of exchange rate variations of trade accounts receivable, trade accounts payable, cash and cash equivalents, marketable securities and others.

27 NET SALES

28 SEGMENT INFORMATION

28.1 Criteria for identifying operating segments

The Board of Directors and Board of Statutory Executive Officers evaluates the performance of the Company's business segments through EBITDA.

The operating segments defined by the Company's management are set forth below:

i)Pulp: comprised of the production and sale of hardwood eucalyptus pulp and fluff pulp, mainly to supply the foreign market.

ii)Paper: comprises the production and sale of paper to meet the demands of both the domestic and foreign markets. Consumer goods (tissue) sales are classified under this segment due to their immateriality.

Information related to total assets by reportable segment is not disclosed, as it is not included in the set of information made available to the Company's management, which makes investment decisions and determines the allocation of resources on a consolidated basis.

In addition, with respect to geographical information related to non-current assets, the Company does not disclose such information, as all property, plant and equipment, biological and intangible assets are in Brazil.

28.2 Information of operating segments