Wang Jun Announces Adjustment to Cash Dividend Payout Rate

1. Date of Board or Shareholders' Meeting Resolution: Not applicable

2. Original Dividend Type and Amount: Cash dividend of NT$409,694,000 for common shares, with NT$7.00 per share distributed.

3. Revised Dividend Type and Amount: Cash dividend of NT$409,694,000 for common shares, with NT$6.97224505 per share distributed.

4. Reason for Change: The company issued common shares upon the exercise of the first employee stock options in 2021 (Minguo Year 110) and 2022 (Minguo Year 111), resulting in an increase in outstanding common shares. Pursuant to the board resolution dated March 9, 2026 (Minguo Year 115) and approved by the annual shareholders' meeting on May 25, 2026, the chairman is authorized to adjust the dividend payout rate accordingly.

5. Other Matters to be Disclosed: None.