[Cheng Tai] Announcement of the Board's election of the Chairperson

1. Date of Board resolution: 2026/05/29. 2. Position: Chairperson. 3. Name of predecessor: Yang Shu-han. 4. Resume of predecessor: Director and Chairperson of Cheng Tai Machinery Co., Ltd. 5. Name of successor: Yang Shu-han. 6. Resume of successor: Director and Chairperson of Cheng Tai Machinery Co., Ltd. 7. Type of change: Expiration of term. 8. Reason for change: Re-election upon expiration of term. 9. Effective date: 2026/05/29. 10. Other: None.