[YAGEO] Announcement of the Company's Consolidated Revenue for May 2026

1. Date of Occurrence: 115/06/08 2. Company Name: YAGEO Corporation 3. Relationship with the Company (Enter Parent Company or Subsidiary): Parent Company 4. Proportion of Mutual Shareholding: Not applicable 5. Reason for Occurrence: YAGEO Corporation announced today that its consolidated net revenue for May 2026 was NT$15.058 billion. Monthly revenue increased by 7.3% compared to the previous month and by 47.5% compared to the same period last year, setting a new historical record for monthly revenue. (In USD, monthly revenue increased by 7.7% from the previous month and by 41.7% from the same period last year.) Accumulated consolidated net revenue for January-May 2026 was NT$67.263 billion, an increase of 27.4% compared to the same period last year.

Despite the impact of the Golden Week holiday in May, which resulted in fewer working days, demand for AI-related applications remained strong. Standard and specialty products also showed stable growth, driving a continued increase in consolidated revenue for May compared to the previous month.

Looking ahead, although significant geopolitical uncertainties persist, customer inventory levels have reached a healthy state. The company will continue to respond prudently to future economic conditions and closely monitor changes in tariffs and exchange rates across various countries. 6. Countermeasures: Not applicable 7. Other Matters to be Notified (If the entity that is the subject of the event or resolution is a publicly issued company, this material information also meets the criteria for matters that have a significant impact on shareholder equity or securities prices as stipulated in Article 7, Paragraph 9 of the Enforcement Rules of the Securities Transaction Act): None Keywords: Material Information