Graphic Packaging Holding Company will create a $6 billion paper-based packaging company by forming a new partnership comprised of Graphic Packaging’s existing businesses and International Paper’s North America Consumer Packaging business.   Graphic Packaging Holding Company will own 79.5% of the partnership and will be the sole operator. International Paper will own 20.5% of the partnership, equivalent to a $1.14 billion value. The partnership will assume $660 million of International Paper d...