[Same Sun Electronic] Announcement of Consolidated Revenue for May 2026

1. Date of Fact Occurrence: 115/06/09 2. Company Name: Same Sun Electronic Industrial Co., Ltd. 3. Relationship with the Company (Enter Parent Company or Subsidiary): Parent Company 4. Proportion of Mutual Shareholding: Not applicable 5. Reason for Occurrence: Not applicable 6. Countermeasures: Not applicable 7. Other Matters to be Notified (If the subject of the event or resolution is a public offering company or above, this material information also meets the criteria of Article 7, Paragraph 9 of the Regulations Governing the Tender Offer for Securities of Public Companies, which significantly affects shareholder equity or securities prices): The company's self-assessed consolidated revenue net amount for May 2026 was NT$1,038,227 thousand. Keywords: Material Information