Shanghai ZJ Bio-Tech Co., Ltd. (688317.SS), also known as Liferiver Bio-Tech, engages in the research, development, production, and sales of molecular genetic diagnostic reagents and instruments. The company's core products include nucleic acid detection kits for applications in emergency public health safety, medical clinical diagnosis, entry-exit inspection and quarantine, and food safety; molecular diagnostic instruments such as real-time PCR systems; and over 500 reagent products covering notifiable infectious diseases, with more than 200 rapid gene diagnostic kits registered as Class III medical devices. These offerings serve hospitals, inspection agencies, and research institutions, primarily within the domestic Chinese market, with business extending to over 100 countries and more than 5,000 customers globally. Founded in 2005 and headquartered at Building 9, No. 2168 Chenhang Road, Minhang District, Shanghai, China, the company operates in the healthcare equipment and supplies sector. In recent developments, Shanghai ZJ Bio-Tech announced its third share repurchase program in 2025 via centralized competitive trading, targeting 60-120 million CNY to reduce registered capital, following the completion of an earlier equity buyback in May 2025 involving 5.83 million shares for 110 million CNY; it also pursues the ongoing acquisition of equity in Shanghai ZJ Bio-Medicine Technology Co., Ltd., initiated in 2022. Additionally, the company signed a strategic cooperation agreement with Sanyou Bio to advance automated development of innovative biologics.