【Kejia-KY】Announcement regarding subsidiaries' cumulative acquisition of the same securities within one year reaching 20% of paid-in capital

1. Security Name: SSE 1-day Treasury Reverse Repo GC001, Code 204001. 2. Transaction Date: 2026/5/28. 3. Board Approval: N/A. 4. Other Approval: Chairman, 2026/5/28. 5. Transaction Details: Total amount 163,148,000 RMB (approx. NT$751,934,000). 6. Gain/Loss: N/A. 7. Relationship: Non-related party. 8. Cumulative Holdings: No pledges. 9. Financial Ratios: 15.11% of total assets. 10. Purpose: Investment. 11. Dissenting Opinions: None. 12. Related Party Transaction: No. 13. Counterparty: N/A. 14. Audit Committee: N/A. 15. Previous Disclosure: N/A. 16. Other: None.