Zhonghuan Announces Acquisition of Securities

1. Security Name: Shangquan Ordinary Shares

2. Transaction Date: 115/5/28 ~ 115/6/15

3. Board Approval Date: Not applicable

4. Other Approval Dates: Approval Level: Approved by Chairman May 15, 2026 (Minguo Year 115)

5. Transaction Quantity, Unit Price, and Total Amount: Transaction Quantity (in thousands of shares): 492 Unit Price (TWD): 767.77 Total Transaction Amount (TWD): 377,745,018

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., Pledging): Holdings: 368,892 shares, Amount: TWD 278,361,477 Ownership Percentage: 0.32%, Restrictions: None

9. Proportion of Securities Investments (including this transaction) under Article 3 of the 'Regulations on Acquisition or Disposal of Assets by Publicly Issued Companies' to Total Assets and Equity Attributable to Owners of Parent in the Most Recent Financial Statements, and the Amount of Working Capital in the Most Recent Financial Statements: Percentage of Total Assets: 78.87% Percentage of Equity Attributable to Owners of Parent: 113.28% Working Capital Amount: TWD 8,285,327 thousand

10. Specific Purpose of Acquisition or Disposal: Investment Portfolio

11. Dissenting Director's Opinion on 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's Approval or Audit Committee's Consent: Not applicable

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

16. Other Explanatory Matters: On 115/03/31, authorized trading personnel were granted authority to conduct securities transactions in the centralized market during Q2 2026 (Minguo Year 115).