Yuanta Financial Holdings' Subsidiary Yuanta Securities Finance Announces Disposal of Quanta Computer Inc. Common Shares

1. Security Name: Quanta Computer Inc. 2. Transaction Date: 2025/7/14~2026/4/28 3. Date of Board of Directors' Resolution: Not applicable 4. Other Approval Dates: Approval level: Chairman's approval on April 28, 2026 5. Transaction Volume, Unit Price, and Total Transaction Amount: Transaction volume: 1,800,000 shares, Unit price: NTD 270~327.5, Total transaction amount: NTD 539,593,500 6. Disposal Gain (or Loss) (Not applicable to those who acquire securities): Disposal gain: NTD 49,324,841 (listed under other comprehensive income) 7. Relationship with the Transacted Company: None 8. As of now, the cumulative holding of these securities (including this transaction), amount, shareholding ratio, and restricted rights (e.g., pledge status): Cumulative holding of these securities: 0 shares, Cumulative holding amount: NTD 0, Cumulative shareholding ratio: 0 %, Restricted rights: None 9. As of now, the ratio of investment in securities listed in Article 3 of the "Regulations Governing the Acquisition or Disposal of Assets by Public Companies" (including this transaction) to the company's total assets and equity attributable to owners of the parent company in the latest financial statements, and the amount of working capital in the latest financial statements: Ratio to total assets in the latest financial statements: 15.02 %, Ratio to equity attributable to owners of the parent company: 61.15 %, Working capital amount: NTD 12,997,947,582 10. Specific Purpose of Acquisition or Disposal: Fund utilization 11. Opinions of dissenting directors on this transaction: None 12. Is this transaction a related party transaction: No 13. Counterparty and its relationship with the company: Not applicable 14. Date of supervisors' approval or audit committee's consent: Not applicable 15. Date of previously announced material information on the same event: Not applicable 16. Other explanatory matters: None