[GMI Technology] Announcement of financial and business information due to stock exchange trading alert criteria

1. Date of occurrence: 2026/06/05 (115/06/05) 2. Reason: Per notification from the Taiwan Stock Exchange. 3. Financial and Business Information: Periods: Monthly (May 115), Quarterly (Q1 115), Cumulative (Q2 114 to Q1 115) Items (in millions, unless specified): - Operating Revenue: 1,982 (+18.30% YoY) / 5,661 (-0.81% YoY) / 20,969 - Pre-tax Net Profit: 83 (+144.23% YoY) / 227 (+11.42% YoY) / 360 - Net Profit Attributable to Parent Company Owners: 72 (+150.11% YoY) / 187 (+9.77% YoY) / 305 - EPS (NTD): 0.396 (+144.64% YoY) / 1.03 (-1.90% YoY) / 1.72 4. Major message disclosure criteria status: None. 5. Press conference status: None. 6. For complete financial information, please visit the Market Observation Post System (MOPS). 7. Other: None.