China Biotech Services Holdings Limited (8037.HK), an investment holding company incorporated in the Cayman Islands in 2003 and continued in Bermuda, with principal operations headquartered in Hong Kong, provides medical laboratory testing and health check services; tumor immune cell therapy and health management services; sale and distribution of health-related and pharmaceutical products; insurance brokerage services; boron neutron capture therapy (BNCT) treatment services; money lending; logistic services; and property investment activities, primarily serving customers in Hong Kong and the People's Republic of China through its reportable segments of medical and health-related services, immunotherapy, pharmaceutical products, insurance brokerage, BNCT, and others. The company operates advanced laboratory facilities utilizing technologies such as polymerase chain reaction (PCR) for infectious disease control, genetic screening, and clinical diagnostics, alongside immunotherapy offerings including immune cell storage and tumor treatments, with BNCT focused on innovative cancer therapies via subsidiaries like Pengbo (Hainan) Medical Technology Co., Ltd. In recent developments, the company entered a strategic cooperation framework agreement with Shenzhen BGI Technology Co., Ltd. in February 2025 to advance biotechnology initiatives; secured conditional capital injections into Pengbo (Hainan) totaling up to RMB80 million from investors including Shenzhen BGI Songhe Biotechnology No. 1 Private Venture Capital Investment Fund Partnership and Hubei Weiyou Equity Investment Partnership; issued new convertible bonds in December 2024 amounting to US$6 million with a reduced conversion price of HK$1.20 per share following a substantial modification and partial redemption of prior 2022 bonds; recognized significant impairments on property, plant and equipment, intangible assets, and right-of-use assets amid BNCT equipment damage from a rainstorm in Hainan (with partial insurance compensation received); and continues negotiations for debt extensions and additional financing to address net current liabilities as of December 31, 2024.