Chotech Announces Board Appointment of Sixth Compensation Committee Members

Release Date: June 23, 2026 Statement Date: June 22, 2026 Statement Time: 16:38 Company Code: 1541 Company Name: Chotech Subject: Announcement of Board Resolution to Appoint Members of the Sixth Compensation Committee Applicable Clause: Clause 6 Factual Date: June 22, 2026

Details: 1. Date of Change: June 22, 2026 2. Name of Functional Committee: Compensation Committee 3. Former Member Name: None 4. Former Member Resume: None 5. New Member Name: Wang Chi-Liang 6. New Member Resume: Director and General Manager, Huan-Fu Sustainable Systems Co., Ltd. 7. Nature of Change (select from 'resignation', 'dismissal', 'end of term', 'deceased', or 'new appointment'): New Appointment 8. Reason for Change: Supplementary Election 9. Original Term: June 6, 2025 ~ June 6, 2028 10. Effective Date of New Appointment: June 22, 2026 11. Other Matters to be Disclosed: Independent Director Lin Hsiu-Mei has been elected as the Convener of the Compensation Committee.