[Wei Hsin] Announcement of Company's Consolidated Operating Revenue for April 2026

Press Release Information Title: [Wei Hsin] Announcement of Company's Consolidated Operating Revenue for April 2026 Subtitle: Company Name: Industry: Body (First 8000 characters): 1. Date of Fact Occurrence: 115/05/11 2. Company Name: Wei Hsin Technology Co., Ltd. 3. Relationship with Company (Enter Company or Subsidiary): Company 4. Shareholding Ratio: Not applicable. 5. Reason for Occurrence: I. The company's consolidated operating revenue for April 115 was NT$944,485 thousand, a decrease of 6% compared to the same period last year. II. Cumulative consolidated operating revenue up to April was NT$3,639,822 thousand, an increase of 9% compared to the same period last year. III. The above information is preliminary unaudited results from the company. IV. The detailed information has been entered into the Public Information Observation Station information system, website: http://mops.twse.com.tw. 6. Countermeasures: None. 7. Other Matters to be Noted (If the entity of the event or resolution is a publicly issued company, this material information also complies with Article 7, Paragraph 9 of the Enforcement Rules of the Securities Transaction Act, which has a significant impact on shareholder equity or stock price): None. Keywords: Material Information