Organization and Principal Activities

12 Months Ended

Dec. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Principal Activities

Organization and Principal Activities

Zai Lab Limited was incorporated on March 28, 2013 in the Cayman Islands as an exempted company with limited liability under the Companies Act of the Cayman Islands (as amended). Zai Lab Limited and its subsidiaries (collectively referred to as the “Company”) are focused on discovering, developing, and commercializing products that address medical conditions with significant unmet needs in the areas of oncology, autoimmune disorders, infectious disease, and neuroscience.

The Company’s principal operations and geographic markets are in Greater China. The Company has a substantial presence in Greater China and the United States.

As of December 31, 2023, the Company’s significant operating subsidiaries were as follows:

Name of Company	Place of Incorporation	Date of Incorporation	Percentage of Ownership	Principal Activities
Zai Lab (Hong Kong) Limited	Hong Kong	April 29, 2013	100%	Operating company for business development and R&D activities and commercialization of innovative medicines and device
Zai Lab (Shanghai) Co., Ltd.	Mainland China	January 6, 2014	100%	Development and commercialization of innovative medicines and devices
Zai Lab (AUST) Pty. Ltd.	Australia	December 10, 2014	100%	Clinical trial activities
Zai Lab (Suzhou) Co., Ltd.	Mainland China	November 30, 2015	100%	Development and commercialization of innovative medicines
Zai Biopharmaceutical (Suzhou) Co., Ltd.	Mainland China	June 15, 2017	100%	Development and commercialization of innovative medicines
Zai Lab (US) LLC	United States	April 21, 2017	100%	Operating company for business development, R&D activities and certain business activities, including legal, compliance and communication functions of the Company
Zai Lab International Trading (Shanghai) Co., Ltd.	Mainland China	November 6, 2019	100%	Commercialization of innovative medicines and devices
Zai Auto Immune (Hong Kong) Limited	Hong Kong	November 4, 2020	100%	Operating company for business development and R&D activities
Zai Lab (Taiwan) Limited	Taiwan	December 10, 2020	100%	Commercialization of innovative medicines and devices
Zai Lab Trading (Suzhou) Co., Ltd.	Mainland China	October 27, 2020	100%	Commercialization of innovative medicines and devices