Jul 26, 2010. /Lesprom Network/. The Paperboard Mill Division of The Newark Group has announced a $40 per ton price increase on all coated grades of recycled paperboard. The company said the increase will be effective with shipments on or after August 23, 2010. The Newark Group is an integrated global producer of 100% recycled paperboard and paperboard products with significant manufacturing and marketing operations in North America and Europe.