Rockwool shares fell roughly 8% after Russia seized four of its factories under a presidential decree. The Danish building materials group will de-consolidate these assets and take a €469 million write-down. Management expressed little hope of reversing the forced external administration, which stripped the company of control over its Russian operations.

Analysts at Kepler Cheuvreux estimate the seized plants accounted for €261 million in sales and €78 million in EBIT, representing 7% and 14% of group totals respectively. Beyond the immediate earnings hit, the loss of proprietary technology at these modern facilities threatens Rockwool's competitive moat more than the financial damage itself.

Rockwool plans to defend its rights under the Denmark-Russia bilateral investment treaty, though prospects appear dim. The analyst moved the rating to Under Review, citing the material earnings impact. Investors now face uncertainty over how the company will replace that production capacity and protect its intellectual property from foreign competitors.