• Adjusted EBITDA increased by 17% compared to the third quarter of 2024.
• Consolidated Net Revenue for the first nine months of 2025 set a new record, reaching R$15.5 billion.
• The Company distributed R$1.3 billion in dividends over the last 12 months, achieving a dividend yield of 5.5%.

São Paulo, November 4, 2025 – Brazil's largest producer and exporter of paper for packaging and sustainable solutions in paper packaging and Brazil's only producer to offer solutions in hardwood, softwood and fluff pulp, Klabin reported Adjusted EBITDA of R$2.117 billion in the third quarter of 2025 (3Q25), increasing 17% from the prior-year period and 4% from the second quarter of 2025.

Net Revenue for the first nine months of 2025 reached R$15.5 billion, marking a record performance for the period. In 3Q25 alone, Net Revenue totaled R$5.4 billion, up 9% from 3Q24, demonstrating the successful ramp-up of operations and the resilience of Klabin’s portfolio. Sales volume, excluding wood, reached 1,067 thousand metric tons in 3Q25, representing a 14% increase compared to 3Q24, with growth across all segments. This performance also reflects uninterrupted operations, as there were no scheduled maintenance shutdowns during the third quarter of 2025. In 3Q24, the Company conducted general maintenance shutdowns at two manufacturing units.

In the last 12 months, Adjusted Free Cash Flow totaled R$3.1 billion, representing a free cash flow yield of 12.6%. In the same period, the Company distributed R$1.3 billion as dividends, equivalent to a dividend yield of 5.5%.

The third-quarter results underscore Klabin's strength, highlighting its ability to sustain efficient operational and financial management even in challenging market conditions. The Company's integrated, diversified, and flexible business model, combined with its ongoing commitment to sustainability and pursuit of operational excellence, reaffirms its consistent value creation.

Investments

In the first nine months of 2025, Klabin invested R$1,808 million in its operations, a 29% decrease from the same period of the previous year. This reduction reflects the completion of major expansion projects and a disciplined approach to financial management, guided by capital allocation discipline and investment predictability.

Commitment to Transparency and Nature

In the third quarter, Klabin reaffirmed its dedication to environmental stewardship by formally adopting the recommendations of the Taskforce on Nature-related Financial Disclosures (TNFD), with the release of its Nature Transition Plan. This initiative enhances the Company's transparency in managing biodiversity-related risks and opportunities. In August 2025, the Company also released its 2024 Sustainable Finance Report, available on the Klabin ESG Panel, which consolidates key documents on sustainability-linked financial instruments.



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