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As part of a longstanding collaboration, ROCKWOOL acquired a minority stake in ScanArc several years ago. The full acquisition announced today deepens this collaboration and supports ROCKWOOL’s roadmap to decarbonise its production. Enabling fossil-free melting with electricity ScanArc’s plasma technology plays an important role in converting existing ROCKWOOL factories to an electric melting solution that enables us to use low-carbon electricity instead of fossil fuels.

Highlights* Demonstrating resilient growth despite continued geopolitical turbulence and unusual weather conditions in Europe and North America, revenue in Q1 2026 reached 906 MEUR, an increase of two percent measured in local currencies and flat in reported figures compared to last year. We expect that energy and raw material cost levels will remain elevated.

About ROCKWOOL Group At ROCKWOOL Group, we are committed to enriching the lives of everyone who experiences our products and services. We help our customers and communities tackle many of today’s biggest sustainability and development challenges, from energy consumption and noise pollution to fire resilience, water scarcity, and urban flooding. Our product range reflects the diversity of the world’s needs, while supporting our stakeholders in reducing their own carbon footprint.

With five manufacturing facilities and more than 1,200 employees, ROCKWOOL is North America’s largest stone wool producer, offering advanced building insulation, industrial and technical solutions. At the ROCKWOOL Group, we are committed to enriching the lives of everyone who comes into contact with our solutions.

About ROCKWOOL Group At ROCKWOOL Group, we are committed to enriching the lives of everyone who experiences our products and services. We help our customers and communities tackle many of today’s biggest sustainability and development challenges, from energy consumption and noise pollution to fire resilience, water scarcity, and urban flooding. Our product range reflects the diversity of the world’s needs, while supporting our stakeholders in reducing their own carbon footprint.

One product. Two layers. Three levels of control. Milton, ON; February 2, 2026 – ROCKWOOL—North America’s leading manufacturer of stone wool insulation—is expanding the availability of ROCKWOOL Smartrock® to the entire continental United States. Smartrock was introduced in 2025 to give architects, specifiers, contractors, and installers a new integrated solution for insulating mass concrete and masonry walls from the interior.

The Russian authorities have placed ROCKWOOL's four Russian factories under external administration. ROCKWOOL calls it indisputably illegal. In connection with the appointment of an external management team, ROCKWOOL CEO Jes Munk Hansen says: “What we are seeing is an obvious breach of all international rules. It is indisputably illegal by any standard. We intend to use all legal avenues to defend our assets and prevent them from falling into Russian hands”.

ROCKWOOL scores “A-” in 2025 CDP Climate Change and Water ratings ROCKWOOL Group is pleased to share we received our 2025 scores from CDP, and we improved, earning an “A-” (up from a “B”in 2024) in both thematic areas we report on – Climate Change and Water Security.

Difficult market conditions impact Q3 results. “As indicated in our previously announced outlook adjustment, the volatility and hesitation we saw across many markets impacted our Q3 results. Trade policy uncertainty and geopolitical tensions persisted in the third quarter, though not all markets were affected equally.

At ROCKWOOL, our goal is to protect what truly matters: families, homes, livelihoods, and the world we live in. By harnessing the power of volcanic rock, our products provide safety, comfort, and peace of mind. And with every innovation, we remain committed to this goal. In a future often coloured by uncertainty, ROCKWOOL offers reassurance.