Two German construction companies are participating in projects initiated by Russian authorities in Mariupol, says a German press investigation. The Knauf group, presented as the world leader in the production of plasterboard, and the company WKB Systems supply materials for these sites.

The German Ministry of the Economy told AFP that "the competent investigative authorities (customs judicial police, public prosecutor's office) must quickly clarify the facts and determine whether there has been a violation of sanctions" Many Western companies, including large German groups, ceased, sometimes sold, their activities in Russia after the invasion of Ukraine.