Jun 29, 2006. /Lesprom Network/. Sonoco will increase prices for its paper-based tubes and cores and related specialty products by 6% in the United States and Canada effective with shipments on or after July 31, 2006, it was announced on June 29 by John Colyer, division vice president and general manager, industrial products - North America. "Additional price increases being implemented by producers of uncoated, recycled paperboard are negatively impacting our manufacturing cost structure. Furthermore, we are continuing to experience inflationary pressures related to general operating costs, including energy and production supplies," said Mr. Colyer. Sonoco, founded in 1899, is a $3.5 billion global manufacturer of industrial and consumer packaging products and provider of packaging services, with more than 300 operations in 35 countries serving customers in some 85 nations.