Huang Hsiang Announces Acquisition of Securities

1. Security Name: Delta Electronics, Inc. 2. Transaction Date: 2026/4/29 - 2026/5/7 3. Date of Board of Directors' Resolution: Not applicable 4. Other Approval Date: Approval level: Chairman's approval May 7, 2026 (Republic of China calendar year 115) 5. Transaction Quantity, Unit Price, and Total Transaction Amount: Transaction Quantity: 290,000 shares Average Price per Share: NT$2,228.49 Total Transaction Amount: NT$646,262 thousand 6. Disposal Gain (or Loss) (Not applicable to acquisition of securities): Not applicable 7. Relationship with the Transacting Company: None 8. As of now, the cumulative quantity, amount, shareholding ratio, and restricted rights (e.g., pledge status) of these securities held (including this transaction) are: Quantity: 261,000 shares Amount: NT$575,418 thousand Shareholding Ratio: 0.010% 9. As of now, the ratio of investment in securities listed in Article 3 of the "Regulations Governing the Acquisition or Disposal of Assets by Public Companies" (including this transaction) to the company's total assets and owners' equity attributable to the parent company in the latest financial report, and the amount of working capital in the latest financial report: Ratio to Total Assets: 1.168% Ratio to Owners' Equity Attributable to Parent Company: 4.326% Working Capital: NT$14,739,777 thousand 10. Specific Purpose of Acquisition or Disposal: To enhance the efficiency of the company's capital utilization. 11. Opinions of Dissenting Directors on This Transaction: Not applicable 12. This transaction is a related party transaction: No 13. Counterparty and its relationship with the company: Not applicable 14. Date of approval by supervisors or audit committee: Not applicable 15. Date of previous significant announcement on the same matter: Not applicable 16. Other explanatory matters: None