[Huang Hsiang] Announcement of Disposal of Securities

1. Name of securities: Delta Electronics, Inc. 2. Trading date: May 11, 2026 to May 25, 2026 3. Date of board of directors resolution: Not applicable 4. Date of other approvals: Approval level: Chairman approval May 25, 2026 5. Transaction volume, unit price, and total transaction amount: Transaction volume: 146,000 shares Average price per share: NT$2,254.02 Total transaction amount: NT$329,087,000 6. Gain (or loss) on disposal (not applicable for acquisition of securities): Gain on disposal: NT$6,466,000 7. Relationship with the underlying company of the trade: None 8. Cumulative holding volume, amount, shareholding percentage of the traded security (including this trade) to date, and restriction of rights (e.g., pledge): Volume: 640,000 shares Amount: NT$1,411,862,000 Shareholding percentage: 0.025% 9. Ratio of securities investment (including this trade) to total assets and equity attributable to owners of the parent company in the most recent financial statements, and working capital in the most recent financial statements as per Article 3 of the "Regulations Governing the Acquisition and Disposal of Assets by Public Companies" to date: Ratio to total assets: 0.595% Ratio to equity attributable to owners of the parent: 2.204% Working capital: NT$14,739,777,000 10. Specific purpose of acquisition or disposal: To improve the efficiency of the Company's capital utilization 11. Dissenting opinions of directors concerning this transaction: Not applicable 12. Is this a related party transaction: No 13. Counterparty to the trade and its relationship with the Company: Not applicable 14. Date of approval by supervisors or board of independent directors: Not applicable 15. Date of previous material information announcement for the same event: Not applicable 16. Other stated matters: None