【Kaga-KY】Announcement on Behalf of Subsidiaries Suzhou Kaga / Kede / Jiacai / Aipulai / Baihong / Jiahuan / Jiajun Regarding Cumulative Disposal of the Same Securities Reaching 20% of Paid-in Capital Within One Year

1. Security Name: Shanghai Stock Exchange One-Day Government Bond Reverse Repurchase GC001, Code 204001 2. Transaction Date: 2026/4/23~2026/4/23 3. Date of Board of Directors' Approval: Not applicable 4. Other Approval Dates: Approval Level: Chairman's Approval, April 23, 2026 (Republic of China calendar) 5. Transaction Volume, Unit Price, and Total Transaction Amount: Aipulai: 55,420 units, average price: 1.380%; Baihong: 104,940 units, average price: 1.385%; Jiacai: 677,860 units, average price: 1.385%; Jiahuan: 163,900 units, average price: 1.385%; Kaga: 117,670 units, average price: 1.385%; Kede: 468,440 units, average price: 1.385%; Jiajun: 361,290 units, average price: 1.380%; Total amount: RMB 194,959 thousand (approximately NT$927,490 thousand) 6. Disposal Profit (or Loss) (Not applicable for acquisition of securities): Disposal profit RMB 7 thousand 7. Relationship with the Transacted Company: Non-related party 8. As of now, the cumulative holding volume, amount, shareholding ratio, and restricted rights (e.g., pledge status) of this transacted security (including this transaction): Suzhou Aipulai: None; Suzhou Baihong: None; Suzhou Jiacai Electronics: None; Suzhou Jiahuan Electronics: None; Suzhou Kaga Electronics: None; Suzhou Kede: None; Chongqing Jiajun: None; Pledge status: None. 9. As of now, the proportion of investment in securities (including this transaction) listed in Article 3 of the "Regulations Governing the Acquisition and Disposal of Assets by Public Companies" to the total assets and equity attributable to owners of the parent company in the most recent financial report, and the amount of working capital in the most recent financial report: Proportion of total assets: 19.63%; Proportion of equity attributable to owners of the parent company: 26.06%; Working capital: NT$2,515,979 thousand. 10. Specific Purpose of Acquisition or Disposal: Investment management 11. Opinions of Dissenting Directors for this Transaction: None 12. This transaction is a related party transaction: No 13. Counterparty and its relationship with the company: Not applicable 14. Date of Supervisors' Approval or Audit Committee's Consent: Not applicable 15. Date of previous significant announcement regarding the same event: Not applicable 16. Other Matters to be Stated: None