5215 K-Jia KY

Announcement Date: June 27, 2026 Statement Date: June 26, 2026 Statement Time: 16:28:07 Company Code: 5215 Company Name: K-Jia KY Subject: Announcement on behalf of subsidiaries Suzhou Jiaji, Kede, Jiacai, Aipulai, Baihong, Jiahuang, and Jiajun regarding cumulative acquisition of the same securities exceeding 20% of paid-in capital within one year Applicable Clause: Item 20 Factual Date: June 26, 2026

Details: 1. Security Name: Shanghai Stock Exchange 1-day Treasury Reverse Repo GC001, Code 204001

2. Transaction Date: June 26, 2026 ~ June 26, 2026

3. Board Approval Date: Not applicable

4. Other Approval Dates: Approval Level: Approved by Chairman June 26, 2026

5. Transaction Quantity, Unit Price, and Total Amount: Aipulai: 86,420 units, average rate: 1.385% Baihong: 103,570 units, average rate: 1.365% Jiacai: 408,060 units, average rate: 1.400% Jiahuang: 220,360 units, average rate: 1.383% Jiaji: 121,000 units, average rate: 1.395% Kede: 203,180 units, average rate: 1.382% Jiajun: 361,640 units, average rate: 1.388% Total Amount: NT$150,423 thousand (approximately NT$691,906 thousand)

6. Gain (or Loss) from Disposal (not applicable for acquisition of securities): Not applicable

7. Relationship with the Counterparty: Unrelated party

8. Cumulative Holdings (including this transaction) to date: Aipulai: 86,420 units, average rate: 1.385% Baihong: 103,570 units, average rate: 1.365% Jiacai: 408,060 units, average rate: 1.400% Jiahuang: 220,360 units, average rate: 1.383% Jiaji: 121,000 units, average rate: 1.395% Kede: 203,180 units, average rate: 1.382% Jiajun: 361,640 units, average rate: 1.388% Pledge Status: None

9. Proportion of cumulative securities investments (including this transaction) under Article 3 of the 'Asset Acquisition and Disposition Rules for Publicly Issued Companies' to total assets and equity attributable to owners of the parent in the latest financial statements, and operating capital amount: Percentage of Total Assets: 13.90% Percentage of Shareholders' Equity: 19.36% Operating Capital: NT$2,612,388 thousand

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

11. Directors who expressed objections to this transaction: None

12. Whether this transaction is 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 date of material information disclosure on the same event: Not applicable

16. Other Explanatory Matters: None