Weltrend Semiconductor Announces Change of Internal Audit Officer

1. Type of personnel change (please enter spokesperson, acting spokesperson, important operational executive (e.g., CEO, COO, CMO, CSO, etc.), financial officer, accounting officer, corporate governance officer, chief information security officer, R&D officer, internal audit officer, or litigation and non-litigation agent): Internal Audit Officer 2. Date of change: 115/05/08 (May 8, 2026) 3. Name, title, and brief resume of the former incumbent: Lin Ya-hui / Internal Audit Officer of the company 4. Name, title, and brief resume of the new incumbent: Lin Hsiao-yun / Project Manager at Hon Hai Precision Industry Co., Ltd. 5. Details of change (please enter "resignation", "position adjustment", "layoff", "retirement", "death", "new appointment", or "dismissal"): Position adjustment 6. Reason for change: Position adjustment 7. Effective date: 115/05/08 (May 8, 2026) 8. Other matters that should be specified: None