Joyzyme Group Limited is an investment holding company engaged in the research, production, and sale of male fertility in-vitro diagnostic (IVD) reagents in the People's Republic of China. It offers biological reagents, including male fertility IVD reagents, parasite antibody detection reagents, and an Epstein-Barr virus antibody detection reagent, as well as healthcare products and supplements, and auxiliary reproductive supplies and equipment. Products are sold directly to hospitals and medical institutions and through distributors. Formerly known as Huakang Biomedical Holdings Company Limited, it changed its name to Joyzyme Group Limited in January 2026; the company was founded in 1992 and is based in Tsim Sha Tsui, Hong Kong.