KÖJA-KY Announces Cumulative Disposal of Securities Exceeding 20% of Paid-in Capital by Subsidiaries Suzhou Jiaji, Kede, etc.

1. Securities name: Shanghai Stock Exchange one-day treasury reverse repurchase GC001, code 204001 2. Transaction date: 2026/04/15 ~ 2026/04/15 3. Date of board of directors' approval: Not applicable 4. Date of other approval: Approval level: Chairman's approval April 15, 2026 5. Transaction quantity, price per unit, and total transaction amount: Aipulai: 55,410 units, average price: 1.400% Baihong: 104,910 units, average price: 1.400% Jiacai: 1,139,540 units, average price: 1.400% Jiahung: 163,850 units, average price: 1.400% Jiaji: 117,640 units, average price: 1.400% Kede: 430,320 units, average price: 1.400% Jiajun: 309,470 units, average price: 1.400% Total amount: RMB 232,123,000 (approx. NT$1,104,289,000) 6. Profit (or loss) from disposal (not applicable for acquisition of securities): Disposal profit RMB 9,000 7. Relationship with the transaction company: Not a related party. 8. To date, cumulative quantity, amount, shareholding ratio, and status of rights restriction (e.g., pledge status) of this transaction security (including this transaction): Suzhou Aipulai: None Suzhou Baihong: None Suzhou Jiacai Electronics: None Suzhou Jiahung Electronics: None Suzhou Jiaji Electronics: None Suzhou Kede: None Chongqing Jiajun: None Pledge status: None 9. To date, according to Article 3 of the "Regulations Governing the Acquisition or Disposal of Assets by Publicly Offered Companies", the ratio of investment in securities (including this transaction) to the company's total assets and equity attributable to owners of the parent in the latest financial report, and the amount of working capital in the latest financial report (Note 2): Ratio to total assets: 23.37% Ratio to shareholder equity: 31.03% Working capital amount: NT$2,515,979,000 10. Specific purpose of acquisition or disposal: Investment management. 11. Opinions of dissenting directors regarding this transaction: None. 12. Is this transaction a related party transaction: No. 13. Transaction counterparty and relationship with the company: Not applicable. 14. Date of supervisor's approval or audit committee's consent: Not applicable. 15. Date of previous announcement of material information on the same matter: Not applicable. 16. Other matters to be noted: None