Aug. 13, 2015 - Sonoco today announced that it will raise the price for all grades of uncoated recycled paperboard products by $45 per ton, effective with shipments in the United States and Canada beginning August 31, 2015. "The price increase is driven by recent increases in costs for recovered paper, chemicals and other operating costs," said Palace Stepps, director of sales and marketing for Sonoco's North America paper business.