Zai Lab Ltd. is a biopharmaceutical company, which engages in the developing and commercializing therapies that address medical conditions with unmet needs in oncology, autoimmune disorders, infectious diseases, and neuroscience. Its products include Zejula, Optune, Qinlock, and Nuzyra. The company was founded by Samantha Ying Du and Marietta Wu in April 2014 and is headquartered in Shanghai, China.