[Catcher-KY] Announcement by Subsidiaries Suzhou Jiaji/Kede/Jiacai/Aipulai/Baihong/Jiahuang/Jiajun on Cumulative Acquisition of the Same Securities Reaching 20% of Paid-in Capital Within One Year

1. Name of securities: Shanghai Stock Exchange 1-day government bond reverse repo GC001, code 204001 2. Transaction date: 2026/5/18~2026/5/18 3. Board of directors approval date: Not applicable 4. Other approval date: Approval level: Chairman approval, May 18, 2026 5. Transaction quantity, price per unit, and total transaction amount: Aipulai: 83,790 units, average price: 1.385%, Baihong: 107,030 units, average price: 1.385%, Jiacai: 530,360 units, average price: 1.390%, Jiahuang: 231,030 units, average price: 1.385% Jiaji: 118,630 units, average price: 1.390% Kede: 345,770 units, average price: 1.390%, Jiajun: 341,740 units, average price: 1.393%, Total amount: 175,835 thousand RMB (approx. 810,407 thousand NTD) 6. Disposal profit (or loss) (not applicable for securities acquisition): Not applicable 7. Relationship with the counterparty company: Non-related party 8. To date, cumulative holdings of this security (including this transaction) quantity, amount, holding ratio, and any restricted rights (such as pledges): Aipulai: 83,790 units, avg. price: 1.385%, Baihong: 107,030 units, avg. price: 1.385%, Jiacai: 530,360 units, avg. price: 1.390%, Jiahuang: 231,030 units, avg. price: 1.385% Jiaji: 118,630 units, avg. price: 1.390% Kede: 345,770 units, avg. price: 1.390%, Jiajun: 341,740 units, avg. price: 1.393%, Pledge status: None 9. To date, the ratio of securities investment under Article 3 of the "Regulations Governing the Acquisition and Disposal of Assets by Public Companies" (including this transaction) to the 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: Ratio to total assets: 17.15% Ratio to shareholders' equity: 22.77% Working capital: NT$2,612,388 thousand 10. Specific purpose of acquisition or disposal: Investment and financial management 11. Dissenting opinions from directors on this transaction: None 12. Is this transaction 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. Date of previous material information announcement on the same event: Not applicable 16. Other explanatory matters: None