HUTCHMED Highlights Clinical Data to be Presented at the 2025 World Conference of Lung Cancer and the CSCO Annual Meeting 2025 Hong Kong, Shanghai & Florham Park, NJ - Friday

HUTCHMED Highlights Clinical Data to be Presented at the 2025 World Conference of Lung Cancer and the CSCO Annual Meeting 2025

Hong Kong, Shanghai & Florham Park, NJ - Friday, September 5, 2025: HUTCHMED (China) Limited ("HUTCHMED") (Nasdaq/AIM: HCM; HKEX: 13) today announces that new and updated data from several studies of compounds discovered by HUTCHMED will be presented at the 2025 World Conference on Lung Cancer ("WCLC") taking place on September 6-9, 2025 in Barcelona, Spain, and the Chinese Society of Clinical Oncology ("CSCO") Annual Meeting 2025, taking place on September 10-14, 2025 in Jinan, China.

Updated analysis from savolitinib's SACHI, SAVANNAH and a Phase IIIb confirmatory study in non-small cell lung cancer ("NSCLC") patients will be presented at WCLC 2025. Savolitinib is an oral, potent and highly selective MET tyrosine kinase inhibitor ("TKI") being jointly developed by AstraZeneca and HUTCHMED and commercialized by AstraZeneca. Details of the WCLC 2025 presentations are as follows:

Clinical data of HMPL-653, a novel, selective and potent CSF-1R inhibitor, from a first-in-human Phase I study in patients with tenosynovial giant cell tumor in China will be presented for the first time at the CSCO Annual Meeting 2025. Details of the CSCO Annual Meeting 2025 presentations are as follows:

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the "safe harbor" provisions of the US Private Securities Litigation Reform Act of 1995. These forward-looking statements reflect HUTCHMED's current expectations regarding future events, including but not limited to its expectations regarding the therapeutic potential of fruquintinib, surufatinib, savolitinib and HMPL-653, the further clinical development for fruquintinib, surufatinib, savolitinib and HMPL-653, its expectations as to whether any studies on fruquintinib, surufatinib, savolitinib and HMPL-653 would meet their primary or secondary endpoints, and its expectations as to the timing of the completion and the release of results from such studies. Such risks and uncertainties include, among other things, assumptions regarding enrollment rates and the timing and availability of subjects meeting a study's inclusion and exclusion criteria; changes to clinical protocols or regulatory requirements; unexpected adverse events or safety issues; the ability of fruquintinib, surufatinib, savolitinib and HMPL-653, including as combination therapies, to meet the primary or secondary endpoint of a study, to obtain regulatory approval in different jurisdictions and to gain commercial acceptance after obtaining regulatory approval; the potential markets of fruquintinib, surufatinib, savolitinib and HMPL-653 for a targeted indication, and the sufficiency of funding. In addition, as certain studies rely on the use of other drug products as combination therapeutics, such risks and uncertainties include assumptions regarding their safety, efficacy, supply and continued regulatory approval. Existing and prospective investors are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. For further discussion of these and other risks, see HUTCHMED's filings with the US Securities and Exchange Commission, The Stock Exchange of Hong Kong Limited and on AIM. HUTCHMED undertakes no obligation to update or revise the information contained in this press release, whether as a result of new information, future events or circumstances or otherwise.

This press release contains information about products that may not be available in all countries, or may be available under different trademarks, for different indications, in different dosages, or in different strengths. Nothing contained herein should be considered a solicitation, promotion or advertisement for any prescription drugs including the ones under development.