Matsukawa Precision Announces Change of Supervisor at Key Subsidiary Matsukawa (Xiamen) Precision Electronics Co., Ltd.

1. Date of Change: July 1, 2026

2. Category of Appointed or Changed Personnel (please select from: Legal Person Director, Legal Person Supervisor, Independent Director, Natural Person Director, or Natural Person Supervisor): Natural Person Supervisor

3. Former Position and Name: (1) Supervisor: Li Yigang

4. Former Personnel's Background: (1) Supervisor: Li Yigang / Supervisor at Matsukawa (Xiamen) Precision Electronics Co., Ltd.

5. New Appointee's Position and Name: (1) Supervisor: Wu Songren

6. New Appointee's Background: (1) Supervisor: Wu Songren / Director and General Manager of Matsukawa Precision Co., Ltd.

7. Nature of Change (please enter 'resignation', 'dismissal', 'end of term', 'deceased', or 'new appointment'): New Appointment

8. Reason for Change: Replacement of Supervisor

9. Number of Shares Held by New Appointee at Time of Appointment: Not Applicable

10. Original Term (e.g., xx/xx/xx ~ xx/xx/xx): Not Applicable

11. Effective Date of New Appointment: July 1, 2026

12. Director Turnover Rate During Same Term: Not Applicable

13. Independent Director Turnover Rate During Same Term: Not Applicable

14. Supervisor Turnover Rate During Same Term: 100%

15. Is the Change Involving One-Third or More of Directors? (please enter yes or no): No

16. Other Matters to be Clarified: This change was implemented in accordance with the shareholder resolution passed at Matsukawa (Xiamen) Precision Electronics Co., Ltd. on July 1, 2026. If the entity involved is a publicly issued company, this significant information also qualifies as a matter of major impact on shareholders' rights or securities prices under Article 7, Paragraph 6 of the Enforcement Rules of the Securities and Exchange Act.