Tong Yang Science Invited to Participate in KGI Securities' Online Corporate Briefing on August 5, 115 at 14:00

Pursuant to Clause 4, Item XX: 12 Factual Date: 115/08/05

1. Date of Corporate Briefing: 115/08/05 2. Time of Corporate Briefing: 14:00 3. Location of Corporate Briefing: Conducted via Webex online meeting 4. Summary of Corporate Briefing: Tong Yang Science has been invited to participate in KGI Securities' online corporate briefing on August 5, 115 at 14:00, during which the company will present its second-quarter operational results for year 115 to investors. 5. Additional Disclosures: For registration inquiries, please contact Ms. Ni at KGI Securities at (02)2181-8654. Complete financial and business information can be accessed via the Public Information Observation Station under the Corporate Briefing section or related listings.