Ukraine: Rockwool confirmed on 5 December 2022 that builders used some of its products in rebuilding work in Russian-occupied Mariupol, Donetsk. Rockwool clarified that it did not supply the materials, which it says had been delivered by a third party.
Rockwool's communications manager Michael Zarin said it is 'almost impossible' for the company to control distributors' activities. Zarin said "The company strongly condemns the war in Ukraine and hopes for an early solution."