Oct 31, 2008. /Lesprom.com/. Executive management of Greif, Inc. will present at the Longbow Research Paper & Packaging Conference in Chicago on November 6, the company said. Greif is a world leader in industrial packaging products and services. The Company produces steel, plastic, fibre, corrugated and multiwall containers, packaging accessories, protective packaging and containerboard, and provides blending and packaging services for a wide range of industries. Greif also manages timber properties in North America.