Future Proofing Sustainable Packaging at Mondi Dynäs

Mondi Dynäs is undergoing a major transformation with a multi-year investment including a new fibre line, continuous digester, bark boiler, bark dryer and tall oil plant. These upgrades will support the long-term competitiveness and operational stability of the mill, energy efficiency and environmental performance.

The new bark boiler will significantly cut fossil fuel use, while the digester will improve energy and water management. The world’s strongest paper, officially recognised by the Swedish edition of the Guinness World Records, is now even stronger thanks to Mondi’s new digester, which further helps to improve the strength properties of its paper. This means Mondi is able to meet increasing customer demands for innovative kraft paper solutions. 

This project at Dynäs enables Mondi to build a more agile business and drive Mondi’s future growth by increasing capacity, strengthening its competitive position in the market with reduced carbon emissions and improved resource efficiency, creating lasting value for customers. 

A major milestone for the fibre line 
In May 2025, the project reached a key milestone with the successful launch of the new fibre line during the mill’s annual maintenance shutdown. This included the start-up of the new continuous digester, a critical step in improving pulp quality and reducing energy use. 

This project is about securing the future of Dynäs for the next 40 years. The new equipment makes our operation more efficient, safer and more sustainable in the long run, contributing to the growth of our business overall. 

Tibor Csölle, Dynäs Aurora Project Director

Managing complexity while keeping operations running 
Despite the mill’s limited space, the team has kept operations running with minimal disruption. Careful planning and close coordination have been essential, especially during the construction phases that brought up to 650 people on site, an increase of more than 50% compared to the usual number of employees on site. Safety has remained central throughout this large-scale project. Despite the additional people on site and complex construction activities, the team recorded only seven Recordable Cases. This strong outcome was supported by a simple but effective approach to on-site monitoring based on the “boots-on-the-ground” principle.  

High visibility, frequent engagement, and close collaboration between Safety Health and Environment (SHE) teams and site functions helped keep safety at the forefront every day.

Malin Sjöstrand, Sustainability Manager at Mondi Dynäs

Supporting the Local Community 
The project is also an investment in the local community of Kramfors. It supports job security and promotes innovation, helping to build a more sustainable future for the region, as well as for Mondi.