Rechi Precision: Self-Reported Consolidated Revenue for May 2026

1. Date of occurrence: 2026/06/08 2. Company name: Rechi Precision Co., Ltd. 3. Relationship with the Company (please indicate the Company or subsidiary): The Company 4. Mutual shareholding ratio: Not applicable 5. Reason for occurrence: Self-reported consolidated revenue for May 2026 6. Countermeasures: None 7. Other matters to be stated (if the event or resolution subject is a public company or above, this material information also meets the provisions of Article 7, Paragraph 9 of the Securities and Exchange Act Enforcement Rules, which has a material impact on shareholders' equity or securities prices): Rechi Precision's self-reported consolidated overseas factory net sales volume (after eliminating internal transactions) for May 2026 was 2.2071 million units, representing an increase of approximately 10.10% compared to the same period last year. Cumulative net sales volume for January to May 2026 was approximately 11.4069 million units, an increase of approximately 3.56% compared to the same period last year. Rechi Precision's self-reported consolidated overseas factory revenue (after eliminating internal transactions) for May 2026 was approximately NT$2.026 billion, representing an increase of approximately 16.66% compared to the same period last year. Cumulative net revenue for January to May 2026 was approximately NT$10.391 billion, a decrease of approximately 1.98% compared to the same period last year.