Nantong. Established in 1935 and headquartered in the United States, Tai Sen Foods is the world's leading producer and supplier of chicken, beef, pork and processed food. Tai Sen Nantong Cluster, as the production base of four industrial chains in China market of Tai Sen, integrates feed processing, poultry breeding, slaughter processing and sales, and its products cover chilled and frozen chicken products in omni-channel retail, catering and various online fresh-keeping platforms in East China.