Xiamen Wantai Canghai Biotechnology Co., Ltd., a fully-owned subsidiary of Wantai Biological, has received approval for the marketing of its nine-valent human papillomavirus vaccine (Escherichia coli), trademarked as Cecolin 9. Prior to this approval, the global market was exclusively dominated by Gardasil®9, a nine-valent HPV vaccine produced by Merck Sharp & Dohme. The introduction of Cecolin 9 is poised to bolster Wantai Biological's HPV vaccine portfolio, diversify its product offerings, and strengthen its competitive edge in the market. Nonetheless, the precise launch date and market performance of Cecolin 9 remain to be seen.