4989 Rongke Announces Appointment of 4th Audit Committee Members and Convener

Release Date: June 27, 2026 Statement Date: June 26, 2026 Statement Time: 15:53:05 Company Code: 4989 Company Name: Rongke Subject: Announcement of the Appointment of the 4th Audit Committee Members and the Election of the Audit Committee Convener Compliance Clause: Item 6 Factual Date: June 26, 2026

Details: 1. Date of Change: 06/26/2026 2. Functional Committee Name: Audit Committee 3. Former Members: Liu San-qi, Tu Wei-hua, Peng Yu-min 4. Former Members' Resumes: Chairman of Huaxia University of Science and Technology, CEO/General Manager of TSRC Corporation, President of the Chinese Institute of Technology Management 5. New Members: Chung Wan-chen, Lin Yu-min, Peng Yu-min 6. New Members' Resumes: Chairman and CEO of Wency Sustainable Development Co., Ltd., CEO of Jiayu International Biotech Co., Ltd., President of the Chinese Institute of Technology Management 7. Nature of Change: End of Term 8. Reason for Change: Regular re-election upon term expiration 9. Previous Term: 06/28/2023 ~ 06/27/2026 10. Effective Date of New Appointment: 06/26/2026 11. Additional Remarks: The 3rd Audit Committee elected independent director Ms. Chung Wan-chen as convener.