COLUMBIA, South Carolina, July 18 -- The South Carolina Department of Agriculture issued the following news release: Orangeburg-based Mixon Seed Service, Inc., is expanding its operations into Calhoun County with the purchase of the L.B. Wannamaker Seed Co. facility in St. Matthews. The facility will be repurposed as a cover crop production facility and SouthLand Wildlife retail storefront. The company is investing $1.2 million in the expansion, which will create nine new jobs. Mixon Seed Serv  more