[WhaYuan] Our Company's Consolidated Revenue for May 2026 Was Approximately NT$197.9 Billion

1. Date of Fact Occurrence: 115/06/09 2. Company Name: WhaYuan Technology Co., Ltd. 3. Relationship with 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 Noted (If the subject of the event or resolution is a public offering or above company, this major 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): Our company announced that its consolidated revenue for May 2026 was approximately NT$197.9 billion. This is an increase of approximately 153% compared to the consolidated revenue of the same period last year, and a decrease of approximately 6% compared to the consolidated revenue of the previous month. The cumulative consolidated revenue for the year to date is approximately NT$903.2 billion, an increase of approximately 104% compared to the same period last year.