[Thinking] Announcement of Self-Consolidated Operating Revenue for May 2026

1. Date of event: June 8, 2026 2. Company name: Thinking Electronic Industrial Co., Ltd. 3. Relationship with the company (please enter the company or subsidiary): The company 4. Shareholding ratio: Not applicable 5. Reason for occurrence: Announcement of the company's self-consolidated operating revenue for May 2026 (after deducting intercompany transactions). 6. Countermeasures: The company's self-consolidated operating revenue for May 2026 was NT$867,735 thousand, an increase of 29.74% compared to the self-consolidated operating revenue of NT$668,821 thousand for the same period last year. Cumulative self-consolidated operating revenue for January to May 2026 was NT$3,784,067 thousand, an increase of 15.12% compared to the cumulative self-consolidated operating revenue of NT$3,286,964 thousand for the same period last year. 7. Other matters to be stated (if the subject of the event or resolution is a company that meets the criteria for public issuance, this material information also complies with Article 7, Item 9 of the Enforcement Rules of the Securities and Exchange Act, which stipulates matters that have a material impact on shareholders' equity or securities prices): The self-consolidated figures have not yet been audited by a certified public accountant, and this is hereby stated.