【Flexium Interconnect】Announcement by Subsidiaries Suzhou Jiaji / Kede / Jiacai / Aipulai / Baihong / Jiahuang / Jiajuan that Cumulative Acquisition of the Same Marketable Securities Reached 20% of Paid-in Capital Within One Year

1. Securities Name: Shanghai Stock Exchange One-Day National Debt Reverse Repurchase GC001, Code 204001 2. Transaction Date: 115/4/28~115/4/28 3. Date of Board of Directors' Approval: Not applicable 4. Other Approval Dates: Approval Level: Chairman's approval April 28, 115 (Republic of China Calendar) 5. Quantity of Transaction Units, Price per Unit, and Total Transaction Amount: Aipulai: 83,730 units, average price: 1.362% Baihong: 108,960 units, average price: 1.355% Jiacai: 594,990 units, average price: 1.360% Jiahuang: 145,930 units, average price: 1.355% Jiaji: 117,700 units, average price: 1.360% Kede: 360,540 units, average price: 1.360% Jiajuan: 341,330 units, average price: 1.360% Total amount: NT$175,318 thousand (approximately NT$834,049 thousand) 6. Disposal Profit (or Loss) (not applicable to acquisition of marketable securities): Not applicable 7. Relationship with the Target Company of the Transaction: Non-related party 8. As of now, the cumulative quantity, amount, shareholding ratio, and restricted rights (e.g., pledge status) of these transaction securities (including this transaction): Aipulai: 83,730 units, average price: 1.362% Baihong: 108,960 units, average price: 1.355% Jiacai: 594,990 units, average price: 1.360% Jiahuang: 145,930 units, average price: 1.355% Jiaji: 117,700 units, average price: 1.360% Kede: 360,540 units, average price: 1.360% Jiajuan: 341,330 units, average price: 1.360% Pledge status: None 9. As of now, the ratio of marketable 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: Ratio to total assets: 17.65% Ratio to shareholders' equity: 23.43% Working capital: NT$2,515,979 thousand 10. Specific Purpose of Acquisition or Disposal: Investment management 11. Opinions of Dissenting Directors on This Transaction: None 12. Is this transaction a related party transaction?: No. 13. Counterparty to the Transaction and Its Relationship with the Company: Not applicable 14. Date of Supervisors' Approval or Audit Committee's Consent: Not applicable 15. Date of previous material information announcement for the same event: Not applicable 16. Other Matters to Be Specified: None.