Zhong Huan Announces Acquisition of Marketable Securities

1. Security Name: Nanya Technology Common Stock

2. Transaction Date: 115/6/25~115/6/26

3. Board Approval Date: Not applicable

4. Other Approval Dates: Approval Level: Approved by Chairman June 26, 2026 (Minguo Year 115)

5. Transaction Quantity, Unit Price, and Total Transaction Amount: Transaction Quantity (in thousands of shares): 2,260 Unit Price (NT$): 464.69 Total Transaction Amount (NT$): 1,050,196,238

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

7. Relationship with the Target Company: None

8. Cumulative Holdings of the Security (including this transaction) to Date – Quantity, Amount, Ownership Percentage, and Restrictions (e.g., Pledge): Holding Balance: 2,294,000 shares, Amount: NT$1,058,528,825 Ownership Percentage: 0.07%, Restrictions: None

9. Proportion of Marketable Securities Investment (including this transaction) 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: 85.18% Percentage of Equity Attributable to Owners of the Parent: 122.34% Working Capital Amount: NT$8,285,327 thousand

10. Specific Purpose of Acquisition or Disposal: Investment Portfolio

11. Directors Who Objected to This Transaction: None

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

16. Other Disclosures: Authorized on March 31, 2026 (Minguo Year 115) for authorized traders to conduct securities transactions in the centralized market during the second quarter of 2026.