【Yuan Yu】Announcement of personnel change for the company spokesperson

1. Type of personnel change (Please enter spokesperson, acting spokesperson, important operational manager (e.g., CEO, COO, CMO, CSO, etc.), financial manager, accounting manager, corporate governance manager, information security officer, R&D manager, internal audit manager, or litigation and non-litigation agent): Spokesperson 2. Date of change: 2026/05/12 3. Name, title, and brief resume of former appointee: Kuo Ming-Feng / Vice President of Business of the company 4. Name, title, and brief resume of new appointee: Su Furlong / Special Assistant to the Chairman of the company 5. Status of change (Please enter "resignation", "job adjustment", "layoff", "retirement", "death", "new appointment" or "removal from office"): Job adjustment 6. Reason for change: Job adjustment 7. Effective date: 2026/05/12 8. Other matters that should be specified: (1) The former spokesperson, Mr. Kuo Ming-Feng, was unable to continue serving concurrently as spokesperson due to heavy official duties. To ensure timely and appropriate disclosure of company information, Mr. Su Furlong has been appointed. (2) Approved by the company's Board of Directors on 2026/05/12.