Cal-Maine Foods, Inc. is a producer and marketer of shell eggs in the United States. The Company's primary business is the production, grading, packaging, marketing and distribution of shell eggs. The Company sells its shell eggs in the southwestern, southeastern, mid-western and mid-Atlantic regions of the United States. The Company markets its shell eggs through its distribution network to a group of customers, including national and regional grocery store chains, club stores, foodservice distributors and egg product consumers. Some of its sales are completed through co-pack agreements. It has a total flock of approximately 33.7 million layers and 8.4 million pullets and breeders. The Company markets its specialty shell eggs under brands, such as Egg-Land's Best, Land O' Lakes, Farmhouse and 4-Grain. The Company also produces, markets and distributes private label specialty shell eggs to several customers.