Dainippon Shigyo Co., Ltd.. The principal activity of the Group is the manufacture of packaging materials such as container board sheets and boxes and printed paperware. The Group is also involved in the operation of the packaging/wrapping materials, woodwork, leasing of real estate and parking lots, and sale of machinery and equipment. Corrugated board accounted for 59% of 2001 revenues; printed paperware-related product, 29% and others, 12%.