【Huang Hsiang】Announcement of Disposal of Securities

1. Security Name: Delta Electronics Inc. 2. Transaction Date: April 28, 2026 3. Date of Board of Directors Approval: Not applicable 4. Other Approval Date: Approval Level: Chairman's Approval, April 28, 2026 5. Transaction Volume, Unit Price, and Total Transaction Amount: Transaction Volume: 300,000 shares Average Price per Share: NTD 2,112.28 Total Transaction Amount: NTD 633,684 thousand 6. Disposal Profit (or Loss) (Not applicable to acquisition of securities): Disposal Profit: NTD 29,426 thousand 7. Relationship with the Target Company of the Transaction: None 8. As of now, the cumulative holding of these transaction securities (including this transaction) in terms of quantity, amount, shareholding ratio, and restricted rights (e.g., pledge status): Quantity: 376,000 shares Amount: NTD 757,337 thousand Shareholding Ratio: 0.014% 9. As of now, the proportion of investment in securities (including this transaction) listed in Article 3 of the "Regulations Governing the Acquisition and Disposal of Assets by Public Companies" to the company's total assets and equity attributable to owners of the parent in the latest financial report, and the amount of working capital in the latest financial report: Proportion of Total Assets: 1.145% Proportion of Equity Attributable to Owners of the Parent: 4.242% Working Capital: NTD 14,739,777 thousand 10. Specific Purpose of Acquisition or Disposal: To enhance the company's capital utilization efficiency 11. Opinions of Dissenting Directors on This Transaction: Not applicable 12. Is This Transaction a Related Party Transaction: No 13. Counterparty to the Transaction and Its Relationship with the Company: Not applicable 14. Date of Approval by Supervisors or Audit Committee: Not applicable 15. Date of Previous Major Information Disclosure for the Same Event: Not applicable 16. Other Matters to be Stated: None