Company: ZLAB
Filing Date: 2025-04-18
Form Type: PRE 14A
Source: 0001628280-25-018384
Chunk: 5

Company: Zai Lab Ltd
Filing Date: 2025-04-18
Form: PRE 14A
Chunk 5
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42</div>

### PROXY STATEMENT
<div align='center'>FOR THE 2025 ANNUAL GENERAL MEETING OF SHAREHOLDERS

IMPORTANT NOTICE OF INTERNET AVAILABILITY OF PROXY MATERIALS FOR THE SHAREHOLDER MEETING TO BE HELD ON JUNE 18, 2025</div>

This Notice of Annual General Meeting of Shareholders and related proxy materials are being distributed or made available to shareholders beginning on or about April 29, 2025. This Proxy Statement and the Annual Report on Form 10-K for the fiscal year ended December 31, 2024 (the “2024 Annual Report on Form 10-K”) of Zai Lab Limited (the “Company” or “us”) are furnished in connection with the solicitation of proxies by the Board of Directors of the Company (the “Board of Directors” or “Board”) for use at the 2025 Annual General Meeting of Shareholders (the “Annual Meeting”), to be held at 8:00 a.m. (U.S. Eastern Time) / 8:00 p.m. (Shanghai and Hong Kong Time) on June 18, 2025 at 4560 Jinke Road, Bldg. 1, Fourth Floor, Pudong, Shanghai, China 201210, and virtually at www.virtualshareholdermeeting.com/ZLAB2025 for the purpose of considering and, if thought fit, passing the resolutions specified in the Notice of the Annual Meeting. This Proxy Statement includes instructions on how to access these materials (including our proxy statement and 2024 annual report to shareholders) online.

All references to “Zai Lab,” the “Company,” “we,” “us” or “our” in this Proxy Statement mean Zai Lab Limited.

<div align='center'>-1-</div>

| MATTERS REQUIRING SHAREHOLDER ACTION |

#### PROPOSALS 1-9

### ELECTION OF DIRECTORS

#### Description of the Proposals
The Board of Directors currently has nine members, all of whom are up for re-election at the Annual Meeting in accordance with the Sixth Amended and Restated Memorandum and Articles of Association (the “Current Articles”). The Board of Directors recommends shareholder approval of the re-election for each of these nominees. In reaching this recommendation, the Board of Directors considered a variety of factors, including the recommendation of the Nominating and Corporate Governance Committee, the criteria set forth in the Corporate Governance Guidelines and Board Diversity Policy, and the