The German gypsum manufacturer Knauf said on Friday that it has not supplied goods to Russia nor has it exported goods from Russia since Russia started its war with Ukraine in February 2022. A Knauf statement, which also said that the firm is not delivering any construction materials from the European Union to the Russian-occupied Ukrainian city of Mariupol, comes after a German public broadcaster reported that journalists had discovered the name Knauf on sacks of plaster in Mariupol. The report, in the ARD program Monitor, said that an authorized Knauf dealer had advertised that he had built …