6573 Hung Yang-KY Announces Re-election of Chairperson by Board of Directors

Date of Announcement: June 23, 2026 Date of Statement: June 22, 2026 Time of Statement: 18:30:56 Company Code: 6573 Company Name: Hung Yang-KY

Subject: Announcement of Chairperson Election by the Board of Directors

Compliance Clause: Item 6 Factual Date: June 22, 2026

Details: 1. Date of Board Resolution or Change: 06/22/2026 2. Position: Chairperson 3. Former Incumbent Name: Kao Kuei-Chen 4. Former Incumbent Resume: Chairman, Hung Yang Development Technology Co., Ltd. 5. New Appointee Name: Kao Kuei-Chen 6. New Appointee Resume: Chairman, Hung Yang Development Technology Co., Ltd. 7. Nature of Change: Term Expiration 8. Reason for Change: Following a full board re-election, the board convened to elect a new Chairperson 9. Effective Date of New Appointment: 06/22/2026 10. Additional Notes: None

This announcement qualifies as a material event under Article 7, Clause 6 of the Enforcement Rules of the Securities and Exchange Act, potentially affecting shareholder rights or stock prices. However, no significant impact is expected due to the continuity in leadership.