Beijing Wantai Biological Pharmacy Enterprise Co., Ltd. researches, develops, produces, distributes, and sells infectious disease diagnostic reagents and vaccines in China and internationally. The company provides COVID 19, HIV and HTLV, Hepatitis, EV-71, and Tuberculosis diagnostics test kits; Hepatitis C and Syphilis detection reagents; automated immunoassays; ELISA kits and rapid tests for infectious disease diagnostics; chemiluminescence and clinical chemistry reagents; immunodiagnostic reagents; and Hepatitis E and human papillomavirus vaccines. It serves blood banks, hospitals and clinics, reference laboratories, border inspection centers, blood-processing companies, and research institutes. The company was founded in 1991 and is headquartered in Beijing, China.