Beijing Tigsun Diagnostics

Beijing Tigsun Diagnostics is a Chinese in vitro diagnostics company focused on the research, development, manufacturing, registration, and commercialization of immunodiagnostic reagents and supporting analyzers. The company appears to operate primarily in chemiluminescence immunoassay, ELISA, and rapid point-of-care testing, with products spanning reproductive hormones, thyroid function, infectious disease, tumor markers, fertility, TORCH, and gynecologic testing. Publicly available product listings and regulatory database entries indicate a commercial portfolio that includes COVID-19 antigen and antibody tests, placental growth factor and soluble fms-like tyrosine kinase-1 assays for preeclampsia-related testing, and anti-Müllerian hormone assays. Tigsun also markets supporting instrumentation such as chemiluminescence analyzers and reports broad hospital coverage in China. Overall, it is best characterized as a commercial IVD manufacturer rather than a therapeutics developer.