Hua Hsing Electronics Announces Unaudited Consolidated Financial Results for June 2026

Release Date: July 10, 2026 Statement Date: July 9, 2026 Statement Time: 16:16 Company Code: 6164 Company Name: Hua Hsing Electronics Industrial Co., Ltd. Subject: Announcement of Unaudited Consolidated Financial Results for June 2026 Applicable Clause: Item 51 Event Date: July 9, 2026

1. Event Date: July 9, 2026 2. Company Name: Hua Hsing Electronics Industrial Co., Ltd. 3. Relationship to Company: Parent Company 4. Cross-shareholding Ratio: Not applicable 5. Reason for Announcement: Announcement of unaudited consolidated financial results for June 2026 (1) Consolidated operating profit for the month (in NT$ thousands): 2,354 (2) Year-to-date consolidated operating profit (in NT$ thousands): 3,430 (3) Consolidated pre-tax profit for the month (in NT$ thousands): 8,170 (4) Year-to-date consolidated pre-tax profit (in NT$ thousands): 18,470 6. Response Measures: None 7. Additional Disclosures: (1) Consolidated net revenue for June 2026: NT$69,942 thousand; cumulative consolidated net revenue from January to June 2026: NT$398,491 thousand. (2) The above figures are self-calculated and have not yet been audited or certified by independent accountants. Final financial statements, once audited, will be officially announced and filed within the legal timeframe.