The largest pig farm in China is Mu Yuan Group. Mu Yuan Group was founded in 1992, and its headquarters is located in Nanyang City, Henan Province. Its main business is pig breeding, and its main business is feed processing, pig breeding and pig slaughter. Dongjiachang Pig Farm is one of the largest pig farms in China. Covering an area of 1000 mu, 600 white pig houses are arranged in an orderly manner.

Wen's Food Company was established in 1983, headquartered in Yunfu City, and its main business is the production of agriculture, animal husbandry and related industries. In addition, it is one of the top ten broiler enterprises in China, and has a special feed procurement center. The company sells pork very well.