Jun 25, 2007. /Lesprom Network/. Rock-Tenn Company announced on June 25, 2007 a $40 per tonne price increase on CartonMate® bleached paperboard products. The price increase is effective with shipments on July 27, 2007. Rock-Tenn Company provides a wide range of marketing and packaging solutions to consumer products companies at low costs, with annual net sales of approximately $2.2 billion and operating locations in the United States, Canada, Mexico, Argentina and Chile. The company is one of North America's leading manufacturers of packaging products, merchandising displays and bleached and recycled paperboard.