Foamit Group, Glava and Stena Recycling collaborate on glass wool recycling

Partnera Corporation
Press release 27 August 2025
 

Foamit Group, Glava and Stena Recycling collaborate on glass wool recycling

Partnera's subsidiary Foamit Group is launching a pilot project in which offcuts from Glava's factory and construction sites will be recycled and used as raw material in foam glass production. The collaboration between Foamit Group's Norwegian subsidiary Glasopor and Saint Gobain's subsidiary Glava began with a research and development project. Stena Recycling joined the collaboration later. Through the joint project, the partners have developed a process for the cost-effective recycling of glass wool.

Glass wool waste still ends up in landfills today, as the recycling method used so far consumes a lot of energy. Transporting it to landfills also incurs costs and is not in line with sustainable development.

The newly developed process enables energy-efficient recycling and use of glass wool as a raw material for foam glass, while ensuring that the Glasopor end product retains its quality and required properties. The properties of foam glass containing recycled glass wool have been tested and the results have been verified by the Norwegian research institute SINTEF.

Less landfill waste

Glasopor’s production will start with a pilot project, and all parties have already begun the necessary preparations. Full-scale recycling operations will begin in the spring of 2026. After processing, Glava's offcuts will be delivered to the Glasopor production plant to be used as raw material for foam glass. Similarly, Stena Recycling will process external glass wool waste, including pre- and post-consumer glass wool from construction sites before being forwarded to Glasopor.

The amount of recyclable glass wool will initially be just over 1,000 tons per year, but over time this could rise to as much as 3,500 tons.

"Partnera supports Foamit Group's aim to reach a revenue of EUR 100 million and EBITDA level of over 20% by the end of 2028. This requires investing in the factories in Finland, Sweden and Norway as well as incorporating new recycling processes and material flows into the value chain. The use of glass wool as a raw material will enable Foamit to continue to grow, which Partnera will support through its investments in the development of Foamit Group's production," Jussi Lappalainen, Interim CEO of Partnera, says.

The core of our business

"Through a joint and pioneering research and development project with Glava, we found a way to process and utilise recycled glass wool. We are now starting to invest in the recycling of thousands of tonnes of glass wool waste every year. Once again, we are proving that recycling and sustainability are at the heart of our business," says Valtteri Raunio, Interim CEO of Foamit Group.

Glava and Stena Recycling are also satisfied with the results of the collaboration: "For Glava, the partnership with Glasopor and Stena is an important step in becoming circular manufacturer. The demand for products that help reduce waste and environmental emission has increased significantly in recent years. We’re pleased to do this together with Glasopor and Stena and look forward to a strong collaboration," says Daniel Jällfält, Business Development Manager Circularity, Saint-Gobain Nordic & Baltic.

Further information
Partnera Corporation
Jussi Lappalainen, Interim CEO
tel: +358 40 530 6446
e-mail: jussi.lappalainen@partnera.fi

Partnera in brief
Partnera is an international business group that promotes sustainable development with its operations through the companies it owns. Partnera Corporation’s shares are listed on Nasdaq First North Growth Market Finland. www.partnera.fi

Foamit Group in brief
Foamit Group’s business operations are divided into foam glass and glass businesses. Foam glass is used as a lightweight and insulating material in infrastructure and building construction. In the glass business, the company implements the circular economy by receiving and recycling glass waste for reuse. Foamit Group includes the Finnish subsidiary Uusioaines Oy, Swedish subsidiary Hasopor AB and Norwegian subsidiary Glasopor AS. Foamit Group is headquartered in Vantaa. The Group’s revenue for 2024 amounted to EUR 41.1 million and it had 95 employees. www.foamit.fi