Wincomm Announces Resignation of Vice President

1. Position affected (please specify: spokesperson, acting spokesperson, key operational executive (e.g., CEO, COO, CMO, CSO), financial officer, accounting officer, corporate governance officer, CISO, R&D head, internal audit head, litigation or non-litigation representative): Vice President

2. Date of change: June 30, 2026

3. Former executive's name, title, and brief resume: Chun-Ying Tu, Vice President of the Institutional Systems R&D Division and Quality Division at the Company

4. New appointee's name, title, and brief resume: Not applicable

5. Nature of change (please enter 'resignation', 'reassignment', 'layoff', 'retirement', 'death', 'new appointment', or 'dismissal'): Resignation

6. Reason for change: Resignation

7. Effective date: June 30, 2026

8. Other matters to be disclosed: None.