Metso has signed an agreement to divest its businesses related to roasting, sulfuric acid and gas cleaning solutions to MAIRE S.p.A., an Italian technology and engineering company. The divested businesses will become part of MAIRE’s Nextchem business, which will provide a strong platform for continued development and future growth. 

The businesses to be divested include sulfuric acid, gas cleaning, roasting and other fluid bed solutions, as well as the related service business. Approximately 180 employees, primarily based in Germany, India, and Sweden, are expected to join MAIRE Group at the closing of the transaction. 

The closing of the transaction is subject to regulatory approvals and is expected to take place in mid-2027. The transaction has no material impact on Metso’s financial performance. 

“MAIRE is well positioned to further develop these businesses, that are synergistic with their existing business, while providing long-term value to customers and employees. In line with Metso’s strategy, this divestment further sharpens our focus on minerals processing and metals refining solutions,” says Piia Karhu, President, Minerals at Metso. 

"This acquisition will significantly enhance Nextchem’s offering in critical and strategic raw materials, an area of growing importance for global industrial development. The combination of proprietary technologies, extensive industrial references and highly specialized know-how will allow us to broaden our presence in the metals and chemical processing industries. We are pleased to welcome a team of approximately 180 highly skilled professionals whose expertise will contribute to the next phase of Nextchem’s growth," says Fabio Fritelli, Managing Director of Nextchem. 

About MAIRE Group 

MAIRE Group is a leading engineering group providing technology solutions and project execution in the downstream segment of energy services, as well as in the chemicals and fertilizers industries. The Group operates through two business units: Integrated E&C Solutions and Sustainable Technology Solutions, the latter active in sustainable fertilizers, low-carbon energy vectors, and innovative materials and circular solutions. With operations in around 50 countries, MAIRE employs over 11,500 people. More information about MAIRE Group is available on its website.   

Further information:  

Piia Karhu, President, Minerals, Metso, email: piia.karhu(at)metso.com 

Metso Media Desk, tel. +358 20 482 1930, email: media(at)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 2025 Metso had close to 18,000 employees in around 50 countries, and sales in 2025 were about EUR 5.3 billion. Metso is listed on the Nasdaq Helsinki. 

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