Cal-Maine Foods, Inc. engages in the production, grading, packing, marketing, and distribution of shell eggs. The firm operates farms, processing plants, hatcheries, feed mills, warehouses, offices and other properties. It markets shell eggs to national and regional grocery store chains, club stores, foodservice distributors, and egg product manufacturers. The company was founded by Fred R. Adams Jr. in 1957 and is headquartered in Jackson, MS.