SPECIAL REPORT — While Canada’s international trade regulator has upheld complaints made by a domestic drywall manufacturer about the dumping of U.S. gypsum in the Western provinces, the ruling continues to impact Western dealers…

SPECIAL REPORT — While Canada’s international trade regulator has upheld complaints made by a domestic drywall manufacturer about the dumping of U.S. gypsum in the Western provinces, the ruling continues to impact Western dealers…