Tong Hsin Electronics Announces Consolidated Net Revenue for June 2026

1. Date of Event: July 9, 2027 (Minguo Year 116) 2. Company Name: Tong Hsin Electronics Industrial Co., Ltd. 3. Relationship with Company:本公司 (This Company) 4. Cross-shareholding Ratio: Not applicable 5. Reason for Occurrence: Not applicable 6. Countermeasures: Not applicable 7. Other Matters to be Stated: The unaudited consolidated net revenue for June 2026 amounts to NT$1,079,530 thousand. This announcement qualifies as material information under Article 7, Paragraph 9, of the Enforcement Rules of the Securities and Exchange Act, as it may significantly impact shareholder equity or stock price.