【KenCem】Announcement of the Board of Directors' Approval for the Appointment of a New Chief Sustainability Officer

1. Type of personnel change (Please enter spokesperson, acting spokesperson, important operational executive (e.g., CEO, COO, CMO, CSO), financial officer, accounting officer, corporate governance officer, chief information security officer, R&D officer, internal audit officer, or litigation/non-litigation agent): Chief Sustainability Officer 2. Date of change: 2026/05/12 3. Name, title, and brief resume of former appointee: Not applicable 4. Name, title, and brief resume of new appointee: Guo Feng-chun / Associate Vice President of the Company's Administrative Management Department 5. Description of change (Please enter "resignation", "position adjustment", "layoff", "retirement", "death", "new appointment" or "dismissal"): New appointment 6. Reason for change: New appointment 7. Effective date: 2026/05/12 8. Other matters to be specified: None