Kojia-KY Announces Subsidiaries Suzhou Jiaji / Kede / Jiacai / Aipulai / Baihong / Jiahuang / Jiajun Accumulatively Acquired 20% of Paid-in Capital of the Same Securities Within One Year

1. Security name: Shanghai Stock Exchange 1-day national debt reverse repurchase GC001, code 204001 2. Transaction date: 2026/5/8~2026/5/8 3. Date of board approval: Not applicable 4. Other approval dates: Approval level: Chairman's approval May 8, 2026 (Republic of China calendar year 115) 5. Transaction quantity, price per unit, and total transaction amount: Aipulai: 83,770 units, average price: 1.285% Baihong: 109,000 units, average price: 1.290% Jiacai: 595,240 units, average price: 1.285% Jiahuang: 145,990 units, average price: 1.290% Jiaji: 123,750 units, average price: 1.283% Kede: 375,690 units, average price: 1.295% Jiajun: 341,470 units, average price: 1.288% Total amount: NTD 177,491 thousand (approximately NTD 818,039 thousand) 6. Disposal profit (or loss) (Not applicable to acquisition of securities): Not applicable 7. Relationship with the target company of the transaction: Non-related parties 8. As of now, the quantity, amount, shareholding ratio, and restricted rights (e.g., pledge status) of the securities held (including this transaction): Aipulai: 83,770 units, average price: 1.285% Baihong: 109,000 units, average price: 1.290% Jiacai: 595,240 units, average price: 1.285% Jiahuang: 145,990 units, average price: 1.290% Jiaji: 123,750 units, average price: 1.283% Kede: 375,690 units, average price: 1.295% Jiajun: 341,470 units, average price: 1.288% 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 or Disposal of Assets by Public Companies" to the total assets and equity attributable to owners of the parent company in the company's most recent financial statements, and the amount of working capital in the most recent financial statements: Proportion of total assets: 17.31% Proportion of shareholders' equity: 22.98% Working capital: NTD 2,515,979 thousand 10. Specific purpose of acquisition or disposal: Investment and financial management 11. Opinions of dissenting directors on this transaction: None 12. This transaction is a related party transaction: No 13. Counterparty to the transaction and its relationship with the company: Not applicable 14. Date of approval by supervisors or audit committee: Not applicable 15. Date of previous material information disclosure on the same matter: Not applicable 16. Other matters to be specified: None