COUNTY – The Union County Board of County Commissioners is excited to announce the return of the Union County Means Business Expo on Thursday, September 12, at the Warinanco Sports Center in Roselle, from 5 p.m. to 7:30 p.m. Established in 2016, the program was designed to help local businesses and entrepreneurs build their networks and create new opportunities to help make the most effective possible impact when it comes to outreach and economic growth.