Changsheng Bio-Technology Co., Ltd. (Chinese: 长生生物科技股份有限公司) is a biotechnology company based in Changchun Jilin, China, specializing in vaccines. It was founded in 1992 as a state-owned enterprise but became a family-owned private company in 2003. It reported 566 million yuan in net profits in 2017. A sales representative was found, in July 2018, to have paid 164,000 yuan (US$24,200) in bribes to the head of the Changling County disease control centre. Police planned to arrest 18 people, including the chairwoman Gao Junfang, on suspicion of producing and selling substandard drugs.