【Yongxin】Announcement by Important Subsidiary Yongxin Pharmaceutical Industrial Co., Ltd. Regarding the Record Date for 2025 Cash Dividend Distribution

1. Date of resolution by the Board of Directors, Shareholders' Meeting, or Company decision: 2026/05/05 2. Type of ex-rights/ex-dividend (please fill in "Ex-rights", "Ex-dividend", or "Ex-rights and Ex-dividend"): Ex-dividend 3. Type and amount of dividend distribution: Cash dividend totaling TWD 650,609,704 (TWD 5.935 per share). 4. Ex-rights (ex-dividend) trading date: NA 5. Last date for share transfer: 2026/06/05 6. Start date for suspension of share transfer registration: 2026/06/06 7. End date for suspension of share transfer registration: 2026/06/10 8. Ex-rights (ex-dividend) record date: 2026/06/10 9. Other matters that should be specified: (1) Cash dividend payment date: 2026/07/10 (2) The recipient of the cash dividend is the single corporate shareholder, Yongxin International Investment Holdings Co., Ltd.