2323 Chung Hsing Announces Acquisition of King Young Electric Common Shares

Release Date: August 11, 2026 Statement Date: August 10, 2026 Statement Time: 17:59:47 Company Code: 2323 Company Name: Chung Hsing Subject: Announcement of Securities Acquisition by the Company Applicable Clause: Clause 20 Factual Date: August 10, 2026

Details: 1. Security Name: King Young Electric Common Stock

2. Transaction Date: March 16, 2026 ~ August 10, 2026

3. Board Approval Date: Not applicable

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

5. Transaction Quantity, Unit Price, and Total Amount: Transaction Quantity (in thousands of shares): 410 Unit Price (NT$): 920.39 Total Transaction Amount (NT$): 377,361,940

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

7. Relationship with the Target Company: None

8. Cumulative Holdings of the Subject Securities (including this transaction) to Date – Quantity, Value, Ownership Percentage, and Restricted Rights (e.g., pledge status): Balance Held: 135,000 shares, Value: NT$125,397,977 Ownership Percentage: 0.026%, 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 Parent in the Company’s Most Recent Financial Statements, and Operating Capital Amount: Percentage of Total Assets: 85.21% Percentage of Equity Attributable to Owners of Parent: 122.38% Operating Capital Amount: NT$8,285,327 thousand

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

11. Dissenting Directors’ Opinions on This Transaction: None

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

13. Counterparty and Its Relationship with the Company: Not applicable

14. Supervisor Approval or Audit Committee Consent Date: Not applicable

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

16. Other Disclosures: Authorized authorized traders on June 30, 2026, to conduct securities transactions on the centralized market during Q3 2026