[WUS Printed Circuit] Announcement of the Board of Directors' Election of the Chairman

WUS Printed Circuit Co., Ltd. announced on June 12, 2026, that its Board of Directors has resolved to elect the Chairman of the company.

The details are as follows:

1. Date of the board of directors' resolution or date of change: June 12, 2026 (Republic of China Era Year 115) 2. Personnel category: Chairman 3. Name of the predecessor: Hsu Han-Chung 4. Predecessor's resume: Representative of the corporate director of WUS Printed Circuit Co., Ltd. 5. Name of the successor: Hsu Han-Chung 6. Successor's resume: Representative of the corporate director of WUS Printed Circuit Co., Ltd. 7. Nature of change: Expiration of term 8. Reason for change: Re-election upon expiration of term 9. Effective date of the new appointment: June 12, 2026 (Republic of China Era Year 115) 10. Other matters to be specified: None