Slide 1: 4Q25 Earnings Presentation
4Q25 Earnings Presentation ri.klabin.com.br
Slide 2: Disclaimer
ri.klabin.com.br 4Q25 Earnings Presentation DISCLAIMER This presentation may contain forward-looking projections or statements. Such statements are exposed to known and unknown risks and different nature uncertainties that may cause these expectations not to materialize or to differ materially from
Slide 3: 4Q25 Performance – Sales Volume
ri.klabin.com.br 4Q25 Earnings Presentation 4Q25 PERFORMANCE – Sales Volume Pulp Total Sales¹ Adjusted EBITDA by SHORT FIBER 29% 1,025 Segment3 4Q25 404 296 k tons k tons k tons R$ 1.8 bn LONG FIBER/FLUFF 108 k tons 11% Conversion (Integration) Paper - Market Pulp 28% COATED BOARD 210 k tons 19% COR
Slide 4: 2025 Performance – Sales Volume
ri.klabin.com.br 4Q25 Earnings Presentation 2025 PERFORMANCE – Sales Volume Pulp Total Sales¹ Adjusted EBITDA by SHORT FIBER 28% 4,008 Segment3 2025 1,544 1,107 k tons k tons k tons R$ 7.8 bn LONG FIBER/FLUFF 437 k tons 11% Conversion (Integration) Paper - Market Pulp COATED BOARD 36% 20% CORRUGATED
Slide 5: 4Q25 Results
ri.klabin.com.br 4Q25 Earnings Presentation 4Q25 RESULTS Exchange rate R$ / US$ 4Q24 4Q25 Quarter performance reflects operational stability, sales volumes and BRL appreciation, even with scheduled maintenance shutdown Average dollar 5.84 5.40 Sales Volume¹ Net Revenue² Adjusted EBITDA (thousand ton
Slide 6: 2025 Results
ri.klabin.com.br 4Q25 Earnings Presentation 2025 RESULTS Exchange rate R$ / US$ 2024 2025 Full-year performance reflects consistent operational execution, volume growth driven by the ramp-up of new machines and price increases in Average dollar 5.39 5.59 paper and packaging Sales Volume¹ Net Revenue
Slide 7: Total Cash Cost
ri.klabin.com.br 4Q25 Earnings Presentation TOTAL CASH COST Cash cost of R$3,225 per ton¹ in 2025, in line with the projection² (“guidance”) and stable for another year, absorbing over 60% of the period’s inflation³ Total Cash Cost¹ Total Cash Cost² - guidance (R$ per ton) (R$ million, per ton) -3%
Slide 8: Net Debt and Leverage
ri.klabin.com.br 4Q25 Earnings Presentation NET DEBT AND LEVERAGE Reduction of 0.6x in USD leverage versus 4Q24 Position on 12/30/2025 (R$ billion) Gross Debt 36.8 Cash¹ 10.9 Net Debt 25.9 4.1 4.5 3.5 4.0 3.9 3.2 3.3 3.5 3.6 3.3 2.7 2.6 2.8 3.5 3.9 3.9 3.9 3.7 3.2 3.2 3.2 3.3 3.3 2.6 2.6 2.6 33,297
Slide 9: Amortization Schedule
ri.klabin.com.br 4Q25 Earnings Presentation AMORTIZATION SCHEDULE Robust liquidity position and extended debt profile, with no significant maturities in the short term R$ million 4Q25 3Q25 4Q24 13,643 In months Average Debt Maturity 85 86 87 2,751 Revolving 39 months Credit of cash debt Cost of Debt
Slide 10: Free Cash Flow (FCF)
4Q25 Earnings Presentation ri.klabin.com.br FREE CASH FLOW (FCF) Solid operating cash flow generation R$ million 4Q25 3Q25 4Q24 2025 2024 1 Adjusted EBITDA 1,832 2,117 1,823 7,848 7,333 (-) Capex¹ (1,024) (554) (820) (2,832) (9,715) (-) Lease contracts - IFRS 16 (82) (75) (91) (346) (359) (-) Intere
Slide 11: Dividends & IoC
ri.klabin.com.br 4Q25 Earnings Presentation DIVIDENDS & IoC R$ million considering cash method Dividend 6.2% 5.3% Yield¹ 1,528 Dividends 4Q25²: R$ 278 million (15% EBITDA) 1,215 Dividends and IoC Policy³: Target between10% and 20% of Adjusted EBITDA 2024 2025 Dividends + IoC paid (R$ million) 1 – Ca
Slide 12: Market Thermometer
ri.klabin.com.br 4Q25 Earnings Presentation MARKET THERMOMETER Demand Demanda Sales Price 1 Negative Neutral Positive (Market) (mercado) volume trend trend trend Short Fiber PULP Fluff Coated Board PAPER Kraftliner Corrugated Boxes PACKAGING Industrial Bags 12 1– Prices in US dollars for pulp and pa
Slide 13: Appendix
Appendix ri.klabin.com.br
Slide 14: Pulp
4Q25 Earnings Presentation ri.klabin.com.br PULP Increase in volume due to the recovery of production throughout the year and stable long-fiber/fluff prices in USD Sales Volume Short Fiber and Long Production Cash Cost (Thousand tons) Fiber/Fluff Net Price (R$ per ton¹) (US$ per ton¹) Short Fiber Lo
Slide 15: Paper
ri.klabin.com.br 4Q25 Earnings Presentation PAPER Growth in containerboard volumes during the year, driven by the Company’s operational flexibility, and maintenance of coated board volume even in an adverse scenario CONTAINERBOARD COATED BOARD Sales Volume Net Revenue Sales Volume Net Revenue (Thous
Slide 16: Corrugated Boxes
ri.klabin.com.br 4Q25 Earnings Presentation CORRUGATED BOXES Net revenue increased by 14% in 2025, reflecting sales volume growth above the Brazilian market (Empapel), along with an 11% increase in prices Sales Volume Net Revenue (R$ million) (Thousand ton) (million m²) +14% 6,018 +4% 5,290 1,700 +8
Slide 17: invest@klabin.com.br
invest@klabin.com.br ri.klabin.com.br/