China Biotech Services Limited 

China Biotech Services Holdings Limited, an investment holding company, provides medical laboratory testing and health check services in the People's Republic of China and Hong Kong. The company operates through five segments: Immunotherapy, Pharmaceutical Products, Medical and Health Related Services, Securities, Insurance brokerage, and Others segments. It also engages in the research, development, manufacture, sale, and distribution of health related and pharmaceutical products; trading of securities; money lending business; provision of tumor immune cell therapy, immune cell storage, and health management services; and provision of coordination of healthcare providers services. In addition, the company markets and sells health supplements, slimming pills, Chinese medicines, and beauty products; trades in pharmaceutical intermediates; and offers insurance brokerage services. Further, it provides property investment and logistic services. The company was formerly known as Rui Kang Pharmaceutical Group Investments Limited and changed its name to China Biotech Services Holdings Limited in November 2017. China Biotech Services Holdings Limited was founded in 1996 and is headquartered in Causeway Bay, Hong Kong.