Zai Lab Ltd is a holding company mainly engaged in the biopharmaceutical field. The Company is focused on discovering or licensing, developing and commercializing proprietary therapeutics that address areas of large unmet medical need in the China market, including oncology, autoimmune and infectious diseases fields. The Company has a broad pipeline of proprietary drug candidates that range from discovery stage to late-stage clinical programs. These include Niraparib (ZL-2306), ZL-2103, ZL-1101 and others.