Jiangsu Ruike Biotechnology Co., Ltd. (“Recobiology” or the “Company”) is an innovative vaccine company dedicated to developing and commercializing safer and more effective innovative vaccines to address far unmet public health needs. Recobiotics has a high-value vaccine portfolio, which is driven by novel adjuvant technology and protein engineering technology developed independently. Through the company's strong R&D capabilities, it has established a powerful innovative vaccine portfolio composed of 11 vaccine candidates, and from a strategic perspective, the coverage has been extended to 5 of the 10 most burdensome diseases in the “Global Burden of Disease” assessed by DALYs issued by the World Health Organization in 2019, and the disease fields covered by 3 of the 5 best-selling vaccine products in the world in 2020. Currently, the company's core product, REC603, a recombinant HPV nine-valent vaccine, is currently in phase III clinical trials. The company has formulated clear commercialization strategies in China and overseas, with the aim of further penetrating diversified markets around the world. At the same time, the company has developed three advanced technology platforms for novel adjuvant development, protein engineering, and immune evaluation. Such platforms enable the company to continuously discover and develop innovative vaccines and apply advanced technology in vaccine candidates. The company completed Series A financing in 2019, Series B financing in 2020, and Series B+ and Series C financing respectively in 2021.