2323 Chung Hsing

Release Date: 1150704 Statement Date: 1150703 Statement Time: 174152 Company Code: 2323 Company Name: Chung Hsing Subject: Announcement of Acquisition of Securities Compliance Clause: Clause 20 Factual Date: 1150703 Details: 1. Security Name: Nanya Technology Common Stock 2. Transaction Date: 115/7/2 ~ 115/7/3 3. Board Approval Date: Not applicable 4. Other Approval Dates: Approval Level: Approved by Chairman July 3, 115 (2026) 5. Transaction Quantity, Unit Price, and Total Amount: Quantity (in thousands of shares): 1,220 Unit Price (NT$): 401.53 Total Transaction Amount (NT$): 489,865,309 6. Gain (or Loss) on Disposal (not applicable for acquisition): Not applicable 7. Relationship with the Target Company: None 8. Cumulative Holdings (including this transaction), Amount, Ownership Ratio, and Rights Restrictions (e.g., Pledge Status): Holdings: 3,424,000 shares, Amount: NT$1,517,122,921 Ownership Ratio: 0.10%, Rights Restrictions: None 9. Proportion of Securities Investments (including this transaction) listed 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 in the Most Recent Financial Statements: Percentage of Total Assets: 83.19% Percentage of Equity Attributable to Owners of the Parent: 119.49% Working Capital Amount: NT$8,285,327 thousand 10. Specific Purpose of Acquisition or Disposal: Investment Portfolio 11. Dissenting Director Opinions on This Transaction: None 12. This Transaction is a Related-Party Transaction: No 13. Counterparty and Its 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: Authorized authorized traders on 115/06/30 to conduct securities transactions in the centralized market during the third quarter of 115 (2026)