Tongwei Co., Ltd. produces and sells feed products in China and internationally. It offers aquatic feed products, including grass carp, crap, crucian, catfish, tilapia, bream, bigmouth, Jiang Tuan, sturgeon, and herring feed, as well as aquatic premix; livestock feed products, such as duck and chicken feed, pig food, and premix for poultry and pigs; aquatic seed products; and medicine products, including Chinese medicine, external disinfection, topical insecticides, and oral vitamins and antibiotics. The company also provides food products, such as fresh and frozen fish, meat, pig, and duck; and farming machinery comprising sow feeders, automatic separators, heat detectors, material towers, auger feed lines, plug trays, nursery and fattening feeders, quantitative buckets, and monomer feeders. In addition, it engages in the aquatic products research, aquaculture, animal health, food processing, and other activities. The company was founded in 1982 and is based in Chengdu, China. Tongwei Co., Ltd. is a subsidiary of Tongwei Group Co., Ltd.