Zai Lab Statement on Executive Management Team’s Agreement on Share Activities

The Executive Officers of Zai Lab Limited (NASDAQ: ZLAB; HKEX: 9688), Samantha Du, Josh Smiley, Rafael Amado, Harald Reinhart, Yajing Chen, F. Ty Edmondson, as well as Jonathan Wang, today announced that they have each agreed that they do not anticipate selling any shares in Zai Lab through the remainder of 2024, except for any shares in existing Rule 10b5-1 plans that are currently effective or to cover tax obligations associated with the vesting of equity awards.

About Zai Lab

Zai Lab (NASDAQ: ZLAB; HKEX: 9688) is an innovative, research-based, commercial-stage biopharmaceutical company based in China and the United States. We are focused on discovering, developing, and commercializing innovative products that address medical conditions with significant unmet needs in the areas of oncology, autoimmune disorders, infectious disease, and neuroscience. Our goal is to leverage our competencies and resources to positively impact human health in China and worldwide.

For additional information about Zai Lab, including our products, business activities and partnerships, research, and other events or developments, please visit www.zailaboratory.com or follow us at www.twitter.com/ZaiLab_Global.

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