2233 Yulon - Chairman and General Manager Resignation at Key Subsidiary Zhejiang Yuzuan Precision Components Co., Ltd.

Announcement Date: June 24, 2026 Statement Date: June 23, 2026 Statement Time: 15:23:37 Company Code: 2233 Company Name: Yulon Technology Subject: (Supplement) Announcement of Change in Chairman and General Manager at Key Subsidiary Zhejiang Yuzuan Precision Components Co., Ltd. Applicable Clause: Clause 6 Event Date: June 22, 2026

Details: 1. Board Resolution or Change Date: June 22, 2026 2. Position (Chairman or General Manager): Chairman and General Manager 3. Former Name: Liu Jun-Chang 4. Former Resume: Chairman of Yulon Technology Co., Ltd. 5. New Appointee Name: Not applicable 6. New Appointee Resume: Not applicable 7. Nature of Change: Resignation 8. Reason for Change: Resignation 9. Effective Date of New Appointment: Not applicable 10. Additional Notes: No further matters to disclose.

This announcement pertains to a publicly listed company and qualifies as a material event under Article 7, Clause 6 of the Enforcement Rules of the Securities and Exchange Act, potentially affecting shareholder rights or stock prices. However, no additional disclosures are required.