【TRI】Announcement of the Company's Self-Audited Profit and Loss for April 115 (2026)

1. Date of occurrence of the event: 2026/05/08 2. Company name: Test Research, Inc. 3. Relationship with the company (please enter 'the company' or 'a subsidiary'): The company 4. Mutually held shares ratio: Not applicable 5. Reason for the occurrence: Announcement of the company's self-audited profit and loss situation up to April 2026. Net profit after tax for the current month: NT$353,527 thousand Earnings per share after tax for the current month: NT$1.5 Cumulative net profit after tax: NT$1,179,991 thousand Cumulative earnings per share after tax: NT$5 6. Countermeasures: None 7. Other matters that need to be specified (if the subject of the event or resolution is a public company or above, this material information also complies with Article 7, Paragraph 9 of the Enforcement Rules of the Securities and Exchange Act, which states matters that have a significant impact on shareholders' equity or securities prices): The content of this information is self-audited data of the company and has not yet been audited (reviewed) by an accountant.