Metso Corporation's stock exchange release on August 18, 2025, at 2:00 p.m. EEST Metso's four largest shareholders have nominated representatives to the Shareholders' Nomination Board, which includes Metso's Chair of the Board of Directors as the fifth member. Metso's four largest registered shareholders on August 15, 2025, were Solidium (14.9% of shares and votes), Cevian Capital Partners (7.8% of shares and votes), Varma Mutual Pension Insurance Company (4.0% of shares and votes) and Ilmarinen Mutual Pension Insurance Company (3.4% of shares and votes). As a result, Metso's Shareholders' Nomination Board consists of: · Annareetta Lumme-Timonen, Investment Director, Solidium · Philip Ahlgren, Partner, Cevian Capital AB · Risto Murto, President & CEO, Varma · Mikko Mursula, Deputy CEO, Investments, Ilmarinen · Kari Stadigh, Chair of Metso's Board of Directors The Nomination Board will provide its proposals relating to the composition of the Board and Board remuneration to the company's Board of Directors on January 31, 2026, at the latest. Further information, please contact: Nina Kiviranta, General Counsel, tel. +358 20 529 2017. Distribution: Nasdaq Helsinki Ltd Main media www.metso.com Metso is a frontrunner in sustainable technologies, end-to-end solutions and services for the aggregates, minerals processing and metals refining industries globally. We improve our customers' energy and water efficiency, increase their productivity, and reduce environmental risks with our product and service expertise. We are the partner for positive change. Metso is headquartered in Espoo, Finland. At the end of 2024 Metso had close to 17,000 employees in around 50 countries, and sales in 2024 were about EUR 4.9 billion. Metso is listed on the Nasdaq Helsinki. metso.com (http://www.metso.com)