[Zhen Ding-KY] Announcement Regarding Adjustment of Cash Dividend Rate

1. Date of Board of Directors or Shareholders' Meeting resolution: 2026/05/22 2. Original dividend type and amount: Cash dividend 3,693,452,348 TWD (3.45 TWD per share). 3. Adjusted dividend type and amount: Cash dividend 3,693,452,348 TWD (3.42169815 TWD per share). 4. Reason for change: Due to the conversion of the company's overseas convertible bonds, which impacted the number of common shares outstanding, the actual dividend rate was calculated and adjusted based on the company's actual outstanding common shares of 1,079,420,855 shares. 5. Other notes: None