Material Event (Form 8-K)

Item 8.01. Other Events.

On June 5, 2026, the Board of Directors of OSR Holdings, Inc. (the "Company") determined to postpone the Company's 2026 Annual Meeting of Stockholders (the "Annual Meeting"), which had previously been scheduled to be held on June 18, 2026.

The Company determined that additional time is necessary to evaluate certain matters relating to the Annual Meeting and the business to be presented to stockholders. Accordingly, the Company believes that postponement of the Annual Meeting is in the best interests of the Company and its stockholders.

The Company has not established a new date for the Annual Meeting at this time. The Company intends to announce the rescheduled date, time, and any related information concerning the Annual Meeting in a subsequent filing with the Securities and Exchange Commission (the "SEC") and through other appropriate communications.

Additional Information and Where to Find It

The Company previously filed a Definitive Proxy Statement on Schedule 14A with the SEC relating to the Annual Meeting. Stockholders are encouraged to read the Company's proxy materials and any supplements thereto because they contain important information. Copies of these documents are available free of charge at www.sec.gov and on the Company's website.