Catcher-KY Announces Subsidiaries' Cumulative Acquisition of a Single Security Reaches 20% of Paid-in Capital

1. Security Name: Shanghai Stock Exchange 1-day government bond reverse repo GC001, code 204001 2. Transaction Date: 2026/05/20 ~ 2026/05/20 3. Board of Directors Approval Date: Not applicable 4. Other Approval Date: Approval Level: Chairman's approval, May 20, 115th year of the Republic (2026) 5. Transaction quantity, price per unit, and total transaction amount: Applai: 83,790 units, avg. price: 1.375% Baihong: 107,030 units, avg. price: 1.375% Jiacai: 530,400 units, avg. price: 1.375% Jiahuang: 231,050 units, avg. price: 1.365% Jiaji: 117,830 units, avg. price: 1.370% Kede: 374,790 units, avg. price: 1.360% Jiajun: 341,770 units, avg. price: 1.370% Total Amount: CNY 178,666 thousand (approx. TWD 823,455 thousand) 6. Gain (or loss) on disposal (not applicable for securities acquisition): Not applicable 7. Relationship with the counterparty company: Non-related party 8. Cumulative holding of this security to date (including this transaction) quantity, amount, shareholding ratio, and any encumbrances (e.g., pledges): Applai: 83,790 units, avg. price: 1.375%, Baihong: 107,030 units, avg. price: 1.375%, Jiacai: 530,400 units, avg. price: 1.375%, Jiahuang: 231,050 units, avg. price: 1.365%, Jiaji: 117,830 units, avg. price: 1.370%, Kede: 374,790 units, avg. price: 1.360%, Jiajun: 341,770 units, avg. price: 1.370%, Pledge status: None 9. To date, the proportion of securities investment (including this transaction) under Article 3 of the "Regulations Governing the Acquisition and Disposal of Assets by Public Companies" to total assets and equity attributable to owners of the parent in the most recent financial statements, and the amount of working capital: Ratio to Total Assets: 16.55%, Ratio to Shareholders' Equity: 23.05%, Working Capital: TWD 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. This transaction is a related party transaction: