【KAIJIA-KY】Subsidiaries Suzhou Kaijia/Kede/Jiacai/Aipulai/Baihong/Jiahuang/Jiajun Announce Cumulative Disposal of Same Securities Reaching 20% of Paid-in Capital Within One Year

1. Securities Name: Shanghai Stock Exchange 1-day reverse repurchase agreement GC001, code 204001 2. Transaction Date: 2026/4/9~2026/4/9 3. Board of Directors Approval Date: Not applicable 4. Other Approval Date: Approval level: Chairman's approval, April 9, 2026 (Republic of China calendar 115) 5. Transaction Quantity, Unit Price, and Total Transaction Amount: Aipulai: 55,390 units, average price: 1.405% Baihong: 104,880 units, average price: 1.415% Jiacai: 1,124,280 units, average price: 1.410% Jiahuang: 169,810 units, average price: 1.400% Kaijia: 122,610 units, average price: 1.405% Kede: 460,210 units, average price: 1.405% Jiajun: 342,000 units, average price: 1.400% Total amount: 237,927 thousand yuan (approximately NT$1,131,902 thousand) 6. Disposal Profit (or Loss) (Not applicable for acquisition of securities): Disposal profit RMB 9 thousand 7. Relationship with the Transacting Company: Non-related party 8. As of now, the quantity, amount, shareholding ratio, and restricted rights (e.g., pledge status) of the accumulated holding of these securities (including this transaction): Suzhou Aipulai: None Suzhou Baihong: None Suzhou Jiacai Electronics: None Suzhou Jiahuang Electronics: None Suzhou Kaijia Electronics: None Suzhou Kede: None Chongqing Jiajun: None Pledge status: None 9. As of now, the proportion of securities investment (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 report, and the amount of working capital in the most recent financial report: Suzhou Aipulai: None Suzhou Baihong: None Suzhou Jiacai Electronics: None Suzhou Jiahuang Electronics: None Suzhou Kaijia Electronics: None Suzhou Kede: None Chongqing Jiajun: None Pledge status: None 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 and its Relationship with the Company: Not applicable 14. Date of Approval by Supervisors or Audit Committee: Not applicable 15. Date of Previous Major Announcement on the Same Event: Not applicable 16. Other Explanations: None