Norcross-based RockTenn, one of the nation’s leading manufacturers of corrugated paperboard and packaging, will bring 500 new jobs home to Gwinnett County next year with the consolidation of its Chicago and St. Louis operations into a new 68,000-square-foot space along the I-85 corridor near Beaver Ruin Road. A Fortune 500 company with 240 locations and 26,000 employees, and revenues topping $10 billion a year, RockTenn is headquartered on Thrasher Street in Norcross.