Shandong Heze Sanyi Biological Engineering Co., LTD. (hereinafter referred to as "Heze Sanyi") is a national high-tech enterprise specializing in the resource utilization of aquaculture waste and the research and development and industrialization of new veterinary disinfectants under Sanyi Group. It is a national high-tech enterprise with three industrial sectors of pasture environmental control, elimination and anti-EGF feeding as the main body. Heze Sanyi is a wholly-owned subsidiary of Sanyi Group, established in March 2012, with a total investment of 100 million yuan, the company has more than 200 employees, and the factory covers an area of 55,000 square meters.