Run-Hong: The Company's Board of Directors Elects Chairman

1. Date of board resolution or change: 115/05/11 (May 11, 2026) 2. Personnel type (please enter chairman or general manager): Chairman 3. Name of former incumbent: Li Chih-Hung, corporate director representative of Ruentex Innovation International Co., Ltd. 4. Brief resume of former incumbent: Chairman of Run-Hong Precision Engineering Co., Ltd. 5. Name of new incumbent: Li Chih-Hung, corporate director representative of Ruentex Innovation International Co., Ltd. 6. Brief resume of new incumbent: Chairman of Run-Hong Precision Engineering Co., Ltd. 7. Type of change (please enter 'resignation', 'dismissal', 'term expiration', 'position adjustment', 'layoff', 'retirement', 'death', or 'new appointment'): Term expiration 8. Reason for change: Term expired, re-elected at the shareholders' meeting and nominated as chairman by the board of directors. 9. Effective date of new appointment: 115/05/11 (May 11, 2026) 10. Other matters that should be specified (If the subject of the event or resolution is a public company or above, this material information also complies with Article 7, Paragraph 6 of the Enforcement Rules of the Securities and Exchange Act regarding matters that have a significant impact on shareholders' equity or securities prices): None