1413 Hongzhou Announces Cumulative Acquisition of 20% of Quanta Computer's Issued Capital

Release Date: July 17, 2026 Statement Date: July 16, 2026 Statement Time: 15:37:37 Company Code: 1413 Company Name: Hongzhou Subject: The company has cumulatively acquired ordinary shares of Quanta Computer Inc. equivalent to 20% of its issued capital within one year. Applicable Clause: Item 20 Factual Date: July 16, 2026

Details: 1. Security Name: Quanta Computer Inc. 2. Transaction Period: November 19, 2025 – July 16, 2026 3. Board Approval Date: Not applicable 4. Other Approval Dates: Approval Level: Approved by Chairman Date: July 16, 2026 (R.O.C. Year 115) 5. Transaction Quantity, Unit Price, and Total Amount: (1) Quantity: 1,024,000 shares (2) Unit Price: NT$290.28 per share (3) Total Transaction Amount: NT$297,247,964 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: (1) Total Quantity Held: 160,000 shares (2) Total Holding Value: NT$56,230,010 (3) Ownership Percentage: 0.004142% (4) Rights Restrictions (e.g., pledge status): None 9. Proportion of Securities Investments (including this transaction) under Article 3 of the 'Asset Acquisition and Disposal Rules for Publicly Issued Companies' relative to Total Assets and Equity Attributable to Owners of Parent in the Latest Financial Statements, and Operating Capital: (1) Percentage of Total Assets: 3.12% (2) Percentage of Equity Attributable to Owners of Parent: 7.31% (3) Operating Capital in Latest Financial Statements: NT$174,039 thousand 10. Specific Purpose of Acquisition or Disposal: Financial Investment 11. Dissenting Directors' Opinions on This Transaction: Not applicable 12. Is This a Related-Party Transaction: No 13. Counterparty and Relationship with the Company: Not applicable 14. Date of Supervisor Approval or Audit Committee Consent: Not applicable 15. Previous Material Information Disclosure Date for the Same Event: Not applicable 16. Other Disclosures: None