Axium Foods’ 130,000-sq.-ft, corn-based snacks operation in South Beloit, Ill., has expanded several times, thanks in part to the success of the many private-label products it packs and products it copacks. It’s also launching its own line of Mystic Harvest purple tortilla chips, which contain powerful antioxidants. Outfitted with seven highly flexible production lines, Axium produces 150 different stock-keeping units of snacks each week.