Polaris Group (6550): Announcement Regarding Director Change in Subsidiary Liyang Biotech

Announcement Date: 2026-05-26 Time: 19:35:50 Company Code: 6550 Company Name: Polaris Group (6550)

Subject: Announcement regarding the change of director at subsidiary Liyang Biotech Pharmaceuticals Co., Ltd.

1. Date of change: 2026-05-25 2. Category of personnel: Natural Person Director 3. Former position and name: Chen Hong-wen, Director at Liyang Biotech 4. Profile of former director: Director at Liyang Biotech 5. New position and name: Hou Yu-hsiang, Director at Liyang Biotech 6. Profile of new director: HR Director at Liyang Biotech 7. Type of change: Resignation 8. Reason for change: Reappointment by parent company 9. Shares held by new director at time of appointment: N/A 10. Former term: N/A 11. Effective date: N/A 12. Ratio of director changes in the same term: N/A 13. Ratio of independent director changes in the same term: N/A 14. Ratio of supervisor changes in the same term: N/A 15. Changes involve more than 1/3 of the board: No 16. Other information: This event does not have a material impact on shareholders' equity or security prices.

This personnel change is part of routine corporate management and organizational adjustments within the group.