3048 Eton Technology Announces Cumulative Disposal of Miwangshi Enterprise Co., Ltd. (8043) Shares Exceeding NT$300 Million Within One Year

Release Date: July 2, 2026 Statement Date: July 1, 2026 Statement Time: 17:49:41 Company Code: 3048 Company Name: Eton Technology Subject: Announcement of cumulative disposal of shares in Miwangshi Enterprise Co., Ltd. (8043) exceeding NT$300 million within one year. Applicable Clause: Clause 20 Factual Date: July 1, 2026

1. Security Name: Miwangshi Enterprise Co., Ltd. Common Stock (8043)

2. Transaction Date: June 29, 2026 – July 1, 2026

3. Board Approval Date: May 13, 2026

4. Other Approval Dates: Not applicable

5. Transaction Quantity, Unit Price, and Total Amount: Quantity (shares): 2,100,000 Average Price per Share (NT$): 196.65 Total Transaction Amount (NT$): 412,970,000

6. Gain (or Loss) on Disposal (not applicable for acquisition of securities): The disposal involves financial assets measured at fair value through other comprehensive income. The result will be recorded in equity on the balance sheet and will not affect the company's current period profit or loss.

7. Relationship with the Target Company: None

8. Cumulative Holdings of the Security (including this transaction) to Date – Quantity, Value, Ownership Percentage, and Restricted Rights (e.g., pledged): Quantity: 5,648,398 shares Value: NT$391,434 thousand Ownership Percentage: 7.07% Restricted Rights: None

9. Proportion of cumulative securities investments (including this transaction) under Article 3 of the 'Asset Acquisition and Disposal Regulations for Publicly Issued Companies' to the company's total assets and equity attributable to owners of the parent in the latest financial statements, and the amount of working capital in the latest financial statements: Percentage of Total Assets: 3.82% Percentage of Equity Attributable to Parent Owners: 23.10% Working Capital: NT$6,603,994 thousand

10. Specific Purpose of Acquisition or Disposal: Financial investment.

11. Directors' Objections to this Transaction: None

12. Is this 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 Material Information Disclosure Date for the Same Event: Not applicable

16. Other Disclosures: None