Delta Releases Financial Results for June 2026

1. Date of Event: July 9, 2026 2. Company Name: Delta Electronics, Inc. 3. Relationship with Company (Please enter 'Company' or 'Subsidiary'): Company 4. Cross-shareholding Ratio: Not applicable 5. Reason for Disclosure: Release of the Company's financial results for June 2026 6. Countermeasures: Not applicable 7. Other Matters to be Disclosed (If the subject of the event or resolution is a publicly issued company or above, this major information simultaneously qualifies as a matter under Article 7, Paragraph 9, Item 9 of the Enforcement Rules of the Securities and Exchange Act that significantly affects shareholders' rights or securities prices):

The Company's consolidated revenue for June 2026 amounted to NT$65.603 billion, representing a 55.4% increase compared to NT$42.208 billion in the same period last year, and an 11.3% increase compared to NT$58.962 billion in the previous month. The cumulative consolidated revenue for January to June 2026 reached NT$342.609 billion, up 41.0% from NT$242.954 billion during the same period last year.