Mitsumitsu to Participate in Kang Hwa Securities' Virtual Corporate Briefing

Pursuant to Article 4, Clause XX: 12 Factual Date: 2026/06/25 1. Date of Corporate Briefing: 2026/06/25 2. Time of Corporate Briefing: 14:00 3. Location of Corporate Briefing: Online Corporate Briefing 4. Summary of Briefing: The company has been invited to participate in the online corporate presentation hosted by Kang Hwa Securities, during which it will report on its current business operations. 5. Other Disclosures: None For complete financial and business information, please refer to the corporate briefing schedule or related sections on the Public Information Observation Station website.