Sinovac Biotech Ltd. (Sinovac Biotech Ltd., SINOVAC Kexing) is a high-tech biotechnology company headquartered in Beijing. It is currently listed on the Nasdaq Global Select Market (Nasdaq-GS: SVA) in the United States. Through its wholly-owned subsidiary Sinovac Holdings (Hong Kong) Co., Ltd., the company owns Beijing Sinovac Biological Products Co., Ltd., Beijing Sinovac Zhongwei Biotechnology Co., Ltd., Sinovac (Dalian) Vaccine Technology Co., Ltd. and other companies, in Haidian, Beijing , Changping, Daxing and Liaoning Dalian have four industrial bases, and promote biomedical product research and development and industrialization cooperation in many overseas countries.

PT Sinovac Biotech Indonesia is a subsidiary of Sinovac Biotech Ltd.