2323 Chung Hsing

Release Date: July 24, 2026 Statement Date: July 23, 2026 Statement Time: 17:53:27 Company Code: 2323 Company Name: Chung Hsing Subject: Announcement of Disposal of Securities Applicable Clause: Clause 20 Factual Date: July 23, 2026

Details: 1. Security Name: Shang Chwan Ordinary Shares

2. Transaction Date: July 8, 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 Transaction Amount: Transaction Quantity (in thousands of shares): 548 Unit Price (NT$): 579.14 Total Transaction Amount (NT$): 317,370,375

6. Gain (or Loss) on Disposal (not applicable for acquisition of securities): Disposal Loss: NT$13,661,471

7. Relationship with the Target Company: None

8. Cumulative Holdings of the Security (including this transaction) to Date – Quantity, Amount, Ownership Percentage, and Restricted Rights (e.g., Pledge Status): Remaining Holdings: 627,892 shares, Amount: NT$382,135,030 Ownership Percentage: 0.55%, Rights Restrictions: None

9. Cumulative Securities Investments (including this transaction) under Article 3 of the “Guidelines for Acquiring or Disposing Assets by Publicly Issued Companies” as a Percentage of Total Assets and Equity Attributable to Owners of the Parent in the Company’s Most Recent Financial Statements, and the Amount of Working Capital in the Most Recent Financial Statements: Percentage of Total Assets: 83.92% Percentage of Equity Attributable to Owners of the Parent: 120.53% Working Capital Amount: NT$8,285,327 thousand

10. Specific Purpose of Acquisition or Disposal: Portfolio Management

11. Directors Who Expressed Objections to This Transaction: None

12. Whether This Transaction is 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 Date of Material Information Disclosure on the Same Event: Not applicable

16. Other Disclosures: On June 30, 2026, authorized personnel were granted authority to conduct securities transactions in the centralized market during the third quarter of 2026