Metsä Board Oyj

Share Issue/Capital Change • Dec 17, 2025

Changes in the ownership of treasury shares of Metsä Board Corporation

Changes in the ownership of treasury shares of Metsä Board Corporation

Metsä Board Corporation Stock Exchange Release Changes in company's own shares
17 December 2025 at 16.25 EET

On 17 December 2025 a total of 8,358 B shares in Metsä Board Corporation
(“Company”) have been returned free of charge to the Company in accordance with
the rules of the share-based compensation plan 2020-2024. The shares were
originally granted, as part of a long-term incentive plan (for the performance
periods 2021-2023 and 2022-2024), to an individual covered by the share-based
incentive scheme who has left the Company toward the end of 2025.

Following the return of these shares, the Company holds a total of 360,802 of
its own B shares.

METSÄ BOARD CORPORATION

Further information:
Eeva Impiö-Loimaala, General Counsel, tel. +358 44 040 3877

Katri Sundström, VP, Investor Relations, tel. +358 10 462 0101

Metsä Board
metsagroup.com/metsaboard (http://www.metsagroup.com/metsaboard/)

Metsä Board is a producer of lightweight and high-quality folding boxboards,
food service boards and white kraftliners. The fresh wood fibres we use in our
products are a renewable and recyclable resource, that can be traced back to
Northern European forests. We aim to have completely fossil-free mills and raw
materials by 2030. We promote a culture of diversity, equality and inclusion.

Metsä Board is listed on the Nasdaq Helsinki. In 2024 our sales totalled EUR 1.9
billion, and we have around 2,300 employees. Metsä Board is part of Metsä Group,
whose parent company Metsäliitto Cooperative is owned by over 90,000 Finnish
forest owners.

Follow Metsä Board:
LinkedIn (https://www.linkedin.com/company/metsa
-board/)   Instagram (https://www.instagram.com/metsaboard/?hl=en)
 YouTube (https://www.youtube.com/playlist?list=PLF6CD152EF0DA1E61)