Daan Gene Co., Ltd., together with its subsidiaries, researches and develops, manufactures, and sells clinical test reagents, instruments, and supporting consumables in China. It operates through two segments, Biological Products and Related Business and Financial Business. The company offers reagents for hepatitis virus, sexually transmitted infections, blood screening, digestive pathogens, coronavirus disease (COVID-19), pharmacogenomics, viral transport medium, human papillomavirus, human immunodeficiency virus, respiratory infections, public health, tumor maker, and nucleic acid extraction, as well as polymerase chain reaction, sample preparation, and nucleic extraction systems for molecular diagnosis; COVID-19 rapid test kit and chemiluminescence immunoassay analyzers for immunoassay; liquid based cytology production and automatic sample transfer machines for pathology tests; and auto biochemistry analyzers and chemistry reagents for clinical chemistry. It also provides medical laboratory and health consultation services, such as genetic susceptibility gene testing, tumor marker testing, cervical cancer screening, routine physical examination, and other health services.