Guangdong Huayin Medicine Science Co., Ltd. was founded in 2004 in Guangzhou, China. Huayin Medicine has always been focusing onmolecular diagnostic techniques with strict quality control systems. Huayin Medicine obtained the Certificate of GMP issued by China National Medical Products Administration and ISO13485 in 2019. Huayin Medicine is consistently committed to R&D, production and service of in-vitro diagnostic products, including RT-PCR, ELISA diagnostic kits and equipment with the brand "HUARUIAN BIO".Huayin Medicine's scientific research center located in Science City, Guangzhou, China. The center equipped with various advanced scientific instruments and technical departments were established including genetic engineering, antibody and protein engineering, molecular diagnosis, immune diagnosis, and biology laboratories.In 2007, Huayin Medicine invested nearly a billion yuan to build a production center with facilities and clean manufacturing workshops, which covers an area more than 10,000 square meters with 200 thousands tests production capacity one day.Huayin Medicine has successfully developed more than 200 kinds of TaqMan PCR diagnostic kits, 11 of which have gotten Certificates and Manufacture Approvals from CFDA. It was the first manufacturer that got a Certificate and Manufacture Approval of Influenza A Virus and Influenza B Virus upon the platform of FQ-PCR from CFDA in 2009. The production of this kit provided a solid technological barrier against the spreading of the flu virus.