MM Board & Paper (MM) has sealed a deal with the RDM Group to buy the operating business of the RDM Arnsberg recycled fibre-based carton board mill in Germany via an asset transaction.

Financial terms of the deal remain undisclosed.

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The Arnsberg site has a production capacity of approximately 230,000tpa of recycled fibre-based carton board and has a particular focus on liner products.

According to the statement from MM, the deal adds to its core operations and “complements” its current manufacturing network. 

MM said that bringing the Arnsberg mill into its industrial base in Germany, which includes several carton board mills and packaging plants, is expected to create synergies that could support the mill’s turnaround.

The company said the deal should raise production flexibility, strengthen security of supply, and expand the range of products and services available to customers.

All employees at the Arnsberg mill are to transfer to MM.

The transaction still requires the necessary antitrust approvals and expected close in the fourth quarter of 2026.

RDM Group CEO Michele Bianchi said: “The transaction represents an important step in the execution of our strategy. The sale of the Arnsberg business supports our objective of optimising the group’s business plan and focusing our efforts on those product categories and markets where we see the strongest prospects for sustainable growth, innovation and value creation.

“We are confident that MM Board & Paper is the right industrial player to support the future development of the Arnsberg business and its employees.”

Earlier this month, MM Board & Paper introduced MM POLAR PLUS, a new machine-finished bleached kraft paper designed for food and non-food packaging applications.

It is intended for converters and packaging manufacturers that need lower-weight paper with consistent quality and processing performance.