The Bigtree Group was found in 2001, and has formed a coordinated development pattern of the first, second and third industries. The first industry is new characteristics agricultural planting, the second industry is nutritional health products processing, and the third industry is catering and health care service. The total assets of the group reach more than 1 billion yuan, with more than 200,000 square meters of standardized plants. The group owns Shandong Bigtree Dreyfus Special Meals Food Co., LTD., Shandong Bigtree Oya Natural Flavoring Co., LTD., Shandong Bigtree Health Technology Co., LTD. Shandong Bigtree Dreyfus Special Meals Food Co., LTD. was established in November 2016, with a registered capital of 467.53 million yuan. In November 2020, through mixed ownership reform, it became the holding enterprise of Heze City Investment Holding Group. It is a national high-tech enterprise, a leading enterprise of agricultural industrialization in Shandong Province, a demonstration enterprise of Rural revitalization in Shandong Province, a leading demonstration enterprise of "Food Safety Shandong" brand, and a "Gazelle" enterprise in Shandong Province. In July 2020, it was listed into the list of the first batch of science and technology enterprises listed in the Cultivation database of Shandong Science and Technology Innovation Board by Shandong Provincial Department of Science and Technology. The company's main business is functional food and nutrition food research and development, production and sales.