• Adjusted EBITDA reached R$7,848 billion in 2025, representing a 7% year-over-year increase. In 4Q25, Adjusted EBITDA was R$1,832 billion, consistent with the same period of the previous year.
• Net revenue reached R$20.7 billion for the year, an increase of 5% compared to 2024. In the last quarter of 2025, Net Revenue totaled R$5,165 billion.
• The company met its cash cost and CAPEX projections for 2025, supported by disciplined investment allocation and strict cost control.
• The Company ended the year with U.S. dollar-denominated leverage of 3.3x—a reduction of 0.6x compared to 4Q24—consistent with its capital structure optimization strategy.
• The year confirms that Klabin’s portfolio flexibility ensures stable results, even in the face of volatile and uncertain scenarios.

São Paulo, February 11, 2026 – Klabin, Brazil's largest producer and exporter of packaging paper and sustainable solutions in paper packaging, and the country’s only Company to offer the market solutions in hardwood pulp, softwood pulp, and fluff pulp, reported Adjusted EBITDA of R$7,848 billion in 2025, representing a 7% increase over the previous year. In the fourth quarter, Adjusted EBITDA totaled R$1,832 billion, in line with that reported in the same period of 2024.

The Company's Net Revenue reached R$20.7 billion in 2025, representing a 5% increase over the previous year, with volume growth observed in all business segments. In 4Q25, Net Revenue totaled R$5.2 billion. Total sales volume (excluding wood) reached 4,008 million metric tons in 2025, an increase of 4% year over year. The results were driven by the progress in the ramp-up of paper machines 27 and 28, installed at the Ortigueira Unit (PR).

The Net Debt/Adjusted EBITDA ratio measured in U.S. dollars, which better reflects the Company's financial leverage profile, ended 4Q25 at 3.3x, representing a decrease of 0.3x compared to 3Q25 and 0.6x compared to 4Q24.

For the full year 2025, Klabin reported Free Cash Flow generation totaling R$715 million. The amount paid in dividends in the last 12 months totaled R$1,215 billion, equivalent to a dividend yield of 5.3%.

Even in the face of a challenging global environment, Klabin demonstrated financial discipline by fully meeting its cash cost and CAPEX guidance. The Company's performance demonstrates the success of its integrated, diversified, and flexible business model, as well as its strong ability to create value for its shareholders.

INVESTMENTS

Klabin ended 2025 with total investments of R$2.8 billion, in accordance with the guidance. This performance reflects the rigorous discipline in project execution and the progress of operational efficiency initiatives. Of the total amount, R$1.1 billion was allocated to silviculture and R$1.0 billion to the company's going concern, both in line with 2024 levels. Furthermore, the Company also disbursed R$222 million and R$538 million, respectively for special projects and for the modernization project of the Monte Alegre Unit (PR).

SUSTAINABILITY

Klabin once again achieved Triple A status in the CDP in 2025, earning the highest score in all three areas assessed by the organization—Climate Change, Forests, and Water Security. The Company is among the select group of organizations to achieve maximum scores across all three areas, underscoring its pioneering role in governance, transparency, and environmental performance, according to the methodology.

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