US: On 13 December 2012 USG Corporation, its subsidiary United States Gypsum Company and seven other wallboard manufacturers were named as defendants in a purported class action complaint filed in the United States District Court for the Northern District of Illinois by Sierra Drywall Systems, on behalf of itself and others similarly situated.
The complaint alleges, among other things, that the defendants unlawfully conspired to fix the price for gypsum wallboard sold in the United States through price increases for the years 2012 and 2013 and the elimination of job quotes. USG believes that the suit is without merit and has denied that it participated in any alleged conspiracy or has engaged in unlawful conduct.