Yi Xin Industrial Announces Cumulative Acquisition of Same Securities Exceeding 20% of Paid-in Capital Within One Year

1. Name of Security: Quanta Computer Inc.

2. Transaction Date: 115/5/20 ~ 115/9/11

3. Board Approval Date: August 10, 2026 (Minguo Year 115)

4. Other Approval Dates: Not applicable

5. Transaction Quantity, Unit Price, and Total Amount: (1) Transaction Quantity: 420,000 shares (2) Unit Price: NT$324.84 (3) Total Transaction Amount: NT$136,434,136

6. Gain (or Loss) on Disposal (Not applicable for acquisition of securities): Not applicable

7. Relationship with the Target Company: None

8. Cumulative Holdings of the Security (including this transaction) to Date – Quantity, Amount, Ownership Percentage, and Restrictions (e.g., Pledge): (1) Cumulative holdings (including this transaction): 20,000 shares (2) Investment amount (including this transaction): NT$6,609,405 (3) Ownership percentage: 0.000518% (4) Restrictions: None

9. Proportion of Securities Investments (including this transaction) under Article 3 of the 'Asset Acquisition and Disposal Rules for Publicly Issued Companies' to Total Assets and Equity Attributable to Owners of the Parent in the Most Recent Financial Statements, and the Amount of Working Capital: (1) Securities investment as a percentage of total assets: 8.94% (2) Securities investment as a percentage of shareholders' equity: 13.89% (3) Working capital: NT$213,775 thousand

10. Specific Purpose of Acquisition or Disposal: Investment and financial management

11. Directors' Objections to This Transaction: None

12. Whether This Transaction is a Related-Party Transaction: No

13. Counterparty and Its Relationship with the Company: None

14. Date of Supervisor's Approval or Audit Committee's Consent: 1. Minguo Year ___ Month ___ Day ___ 2. Not applicable, reason:

15. Previous Date of Material Information Disclosure on the Same Event: Not applicable

16. Other Disclosures: None