Russia: Knauf Gips has filed a lawsuit in the commercial court of Moscow against Prikamskaya Gypsum Company, Gipsopolimer (30.84% owned by Knauf), the Prikamskaya Gypsum Company trading house, the Erster trading house and GlavOptStroyTorg. Knauf Gips has demanded that the defendants be forbidden from using symbols similar to Knauf's trademarks and has claimed Euro61.1m. Knauf Gips has also demanded that counterfeit gypsum wallboard with its trademark be destroyed.