Chung Hsing Announces Acquisition of Taiwan High Speed Rail Shares

Release Date: August 11, 2026 Statement Date: August 10, 2026 Statement Time: 18:02:38 Company Code: 2323 Company Name: Chung Hsing Subject: Announcement of Securities Acquisition Applicable Clause: Item 20 Factual Date: August 10, 2026

1. Security Name: Taiwan High Speed Rail Ordinary Shares

2. Transaction Period: July 24, 2026 – August 10, 2026

3. Board Approval Date: Not applicable

4. Other Approval Dates: Approval Level: Approved by Chairman Date: August 10, 2026

5. Transaction Quantity, Unit Price, and Total Amount: Quantity (in thousands of shares): 12,499 Unit Price (NT$): 25.83 Total Transaction Amount (NT$): 322,860,617

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

7. Relationship with Target Company: None

8. Cumulative Holdings (including this transaction) as of Now – Number of Shares, Amount, Ownership Percentage, and Restricted Rights (e.g., Pledge Status): Holdings: 301,650,000 shares, Amount: NT$8,704,503,932 Ownership Percentage: 5.36%, Rights Restrictions: None

9. Proportion of Securities Investments (including this transaction) under Article 3 of the 'Regulations Governing Acquisitions and Dispositions of Assets by Publicly Issued Companies' to Total Assets and Equity Attributable to Owners of Parent in the Most Recent Financial Statements, and Operating Capital: Percentage of Total Assets: 85.21% Percentage of Equity Attributable to Parent: 122.38% Operating Capital: NT$8,285,327 thousand

10. Specific Purpose of Acquisition or Disposition: Investment Portfolio Management

11. Dissenting Director Opinions on This Transaction: None

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

13. Counterparty and Relationship with 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: On June 30, 2026, authorized traders were granted permission to conduct securities transactions in the centralized market during Q3 2026.