Jiangsu gdk Biotechnology Co., Ltd. engages in the research, development, production, and sale of human vaccines. The company’s main products include a quadrivalent influenza virus split vaccine for preventing influenza caused by two influenza A strains and two influenza B strains; freeze-dried human rabies vaccines (Vero cell); trivalent inactivated split-virus influenza vaccines; 23-valent and 13-valent pneumococcal polysaccharide conjugate vaccines; and live attenuated varicella and herpes zoster vaccines. Its vaccine portfolio covers the prevention of five major infectious diseases: influenza, rabies, chickenpox, shingles, and pneumonia. Founded in December 2008 and headquartered in Taizhou, China, Jiangsu gdk Biotechnology operates primarily in the domestic Chinese market. The company is a biohigh-tech enterprise integrating scientific research, production, operation, and service of human vaccines, supported by robust technical development capabilities, advanced production and testing equipment, and a scientifically standardized management and quality assurance system. In recent years, the company has focused on expanding its vaccination product pipeline, completing Phase III clinical trials for its freeze-dried human rabies vaccine and progressing clinical trials for pediatric influenza vaccines. It was listed on the Shanghai Stock Exchange Science and Technology Innovation Board (STAR Market) in August 2021. The company continues to develop new vaccine candidates and broaden its infectious disease prevention coverage to meet evolving healthcare demands in China. Its operations do not currently indicate significant international market penetration or major recent strategic partnerships beyond clinical development and product pipeline enhancement.