Sonoco announced that it will raise the price for all grades of uncoated recycled paperboard (URB) products by $40 to $60 per ton depending on grade, effective with shipments in the United States and Canada, beginning Oct. 3, 2016.   “It is critically important in a mature business, such as our paper business, to run our operations efficiently and provide a return that justifies continued investment,” said Palace Stepps, director of sales and marketing for Sonoco’s North America paper business...