Tonda-Sou Invited to TWSE Innovation Board Company Presentation

Release Date: 2026-06-25 Statement Date: 2026-06-24 Statement Time: 13:47:44 Company Code: 4590 Company Name: Tonda-Sou Purpose: The company has been invited to attend the corporate investor briefing for Innovation Board companies hosted by the Taiwan Stock Exchange. Applicable Clause: Clause 12 Factual Date: 2026-06-25

Details: Falls under Clause 4, Subsection XX: 12 Factual Date: 2026-06-25

1. Date of Investor Briefing: 2026-06-25 2. Time of Investor Briefing: 15:30 3. Location of Investor Briefing: Information Exhibition Center, 1st Floor, Taiwan Stock Exchange (101 Building) 4. Summary of Briefing: Tonda-Sou has been invited to the Innovation Board corporate investor briefing hosted by the Taiwan Stock Exchange, where it will present an overview of its business operations and future outlook. 5. Other Disclosures: None

For complete financial and business information, please visit the 'Corporate Investor Briefings' section or 'Earnings Call' category on the Public Information Observation Station website.