Haikou Xinzhengyuan Biotechnology

Haikou Xinzhengyuan Biotechnology is a Chinese biopharmaceutical company specializing in the development and large-scale manufacturing of recombinant vaccines. Established as a key industrialization base in the Hainan Free Trade Port, the company works in close partnership with Beijing Wantai Biological Pharmacy and Xiamen University. Its primary focus is the production of innovative vaccines using a proprietary E. coli-based recombinant protein expression platform. The company gained significant prominence for its role in the clinical development and production of a recombinant COVID-19 vaccine. Beyond COVID-19, Haikou Xinzhengyuan is involved in advancing vaccine candidates for human papillomavirus (HPV) and other viral infections. The company operates high-capacity manufacturing facilities designed to meet international GMP standards.