2323 Chung Hsing

Release Date: July 24, 2026 Statement Date: July 23, 2026 Statement Time: 17:48:51 Company Code: 2323 Company Name: Chung Hsing Subject: Announcement of the Company's Acquisition of Securities Applicable Clause: Clause 20 Factual Date: July 23, 2026 Details: 1. Security Name: Nanya Technology Common Stock 2. Transaction Date: July 21, 2026 – July 23, 2026 3. Board Approval Date: Not applicable 4. Other Approval Dates: Approval Level: Approved by Chairman July 23, 2026 5. Transaction Quantity, Unit Price, and Total Amount: Transaction Quantity (in thousands of shares): 1,940 Unit Price (NT$): 423.99 Total Transaction Amount (NT$): 822,539,797 6. Gain (or Loss) on Disposal (Not applicable for acquisition of securities): Not applicable 7. Relationship with the Target Company: None 8. Cumulative Holdings to Date (including this transaction): Balance Held: 3,596,000 shares, Amount: NT$1,546,703,982 Ownership Percentage: 0.10%, Rights Restrictions (e.g., pledge): None 9. Proportion of securities investments under Article 3 of the 'Asset Acquisition and Disposal Rules for Publicly Issued Companies' relative to total assets and equity attributable to owners of the parent in the latest financial statements, and operating capital amount: Percentage of Total Assets: 83.92% Percentage of Equity Attributable to Owners of the Parent: 120.53% Operating Capital Amount: NT$8,285,327 thousand 10. Specific Purpose of Acquisition or Disposal: 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 the Company: Not applicable 14. Supervisor Approval or Audit Committee Consent Date: Not applicable 15. Previous Material Information Release Date for the Same Event: Not applicable 16. Other Explanatory Matters: On June 30, 2026, authorized traders were approved to conduct securities transactions in the centralized market during the third quarter of 2026