5215 Kye-KY: Announcement of Subsidiaries' Cumulative Disposal of Securities Exceeding 20% of Paid-in Capital

Release Date: July 15, 2026 Statement Date: July 14, 2026 Statement Time: 17:10:51 Company Code: 5215 Company Name: Kye-KY

Subject: Announcement on behalf of subsidiaries Suzhou Kye-Ji, Kye-Tek, Kye-Tsai, Apex, Pai-Hung, Kye-Huang, and Kye-Chun

Announcement of cumulative disposal of the same securities within one year reaching 20% of paid-in capital

Applicable Clause: Item 20 Factual Date: July 14, 2026

Details:

1. Security Name: 1-day Chinese Government Bond Reverse Repo (GC001) on the Shanghai Stock Exchange, Code 204001

2. Transaction Date: July 14, 2026 ~ July 14, 2026

3. Board Approval Date: Not applicable

4. Other Approval Dates: Approval Level: Approved by Chairman July 14, 2026 (Minguo Year 115)

5. Transaction Quantity, Unit Price, and Total Transaction Amount:

- Apex: 84,460 units, average rate: 1.415% - Pai-Hung: 103,630 units, average rate: 1.415% - Kye-Tsai: 433,310 units, average rate: 1.410% - Kye-Huang: 220,480 units, average rate: 1.410% - Kye-Ji: 121,070 units, average rate: 1.415% - Kye-Tek: 205,290 units, average rate: 1.420% - Kye-Chun: 351,840 units, average rate: 1.410%

Total Amount: 151,914 thousand TWD (approximately NT$710,837 thousand)

6. Gain (or Loss) from Disposal (not applicable for acquisition): Disposal gain: RMB 6,000

7. Relationship with the Counterparty Company: Non-related party

8. Cumulative Holdings of the Security (including this transaction) to Date in Terms of Quantity, Amount, Holding Percentage, and Restricted Rights (e.g., Pledge Status):

- Suzhou Apex: None - Suzhou Pai-Hung: None - Suzhou Kye-Tsai Electronics: None - Suzhou Kye-Huang Electronics: None - Suzhou Kye-Ji Electronics: None - Suzhou Kye-Tek: None - Chongqing Kye-Chun: None

Pledge Status: None

9. Cumulative Securities Investment under Article 3 of the 'Asset Acquisition and Disposal Rules for Publicly Issued Companies' (including this transaction) as a Percentage of Total Assets and Equity Attributable to Owners of the Parent in the Most Recent Financial Statements, and the Amount of Working Capital in the Most Recent Financial Statements:

- Percentage of Total Assets: 14.28% - Percentage of Shareholders' Equity: 19.89% - Working Capital: NT$2,612,388 thousand

10. Specific Purpose of Acquisition or Disposal: Investment and financial management

11. Dissenting Director Opinions on This Transaction: None

12. Is This a Related-Party Transaction: No

13. Counterparty and Its Relationship with the Company: Not applicable

14. Date of Supervisor Approval or Audit Committee Consent: Not applicable

15. Previous Material Information Disclosure Date for the Same Event: Not applicable

16. Other Remarks: None