Heyi Announces Board Resolution on Disposal of Securities

1. Name of Security: (6869) Yunbao Energy Co., Ltd.

2. Transaction Date: 115/8/12 ~ 115/8/12

3. Board Approval Date: August 12, 115 (2026)

4. Other Approval Dates: Not applicable

5. Quantity, Unit Price, and Total Transaction Amount: To be executed according to market conditions. The total disposal amount shall not exceed NT$600 million.

6. Gain (or Loss) from Disposal (not applicable for acquisition of securities): To be announced based on actual transaction information.

7. Relationship with the Target Company: None

8. Cumulative Holdings of the Subject Securities (including this transaction) to Date – Quantity, Amount, Ownership Percentage, and Rights Restrictions (e.g., Pledging): As of the board resolution date (August 12, 115 / 2026): Holding Quantity: 3,917,318 shares Amount: NT$358,042,865 Ownership Percentage: 2.84% Rights Restrictions: None

9. Proportion of Securities Investments Listed under Article 3 of the 'Asset Acquisition or Disposition Rules for Publicly Issued Companies' (including this transaction) to Total Assets and Equity Attributable to Owners of Parent in the Company’s Most Recent Financial Statements, and the Amount of Working Capital in the Most Recent Financial Statements: To be announced based on actual transaction information. Working capital as of March 31, 2026: NT$2,419,587 thousand.

10. Specific Purpose of Acquisition or Disposition: Flexible use of funds

11. Dissenting Director Opinions Regarding 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 Acknowledgment or Audit Committee Approval: August 12, 115 (2026)

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

16. Other Disclosures: None