Zhejiang Dayang Biotech Group Co., Ltd. was founded in 1976, restructured into a limited liability company in 2003, and completed the conversion to a joint-stock company in 2009. It now has 4 wholly-owned subsidiaries. The company is a National High-tech Enterprise, a national Specialized, Refined, Differential and Innovative "Little Giant" Enterprise, a National Intellectual Property Advantage Enterprise, one of China's Top 500 Petroleum and Chemical Enterprises, and a Zhejiang Province Contract-abiding and Credit-worthy Enterprise. It was listed on the Main Board of the Shenzhen Stock Exchange in 2020, with the securities code 003017. ...