AMAX-KY Announces Material Financial Information Due to Securities Reaching Alert Threshold on Centralized Market

1. Date of Event: September 2, 2026 (R.O.C. Year 115) 2. Reason for Announcement: In compliance with notification from the Taiwan Stock Exchange Corporation 3. Financial and Operational Information:

Period Monthly Quarterly Cumulative Last Four Quarters ============== =================== ====================== ========================= Most Recent Month Most Recent Quarter From Q3 2025 to Q2 2026 Item July 2026 (Self- Q2 2026 (Audited) (Audited) Reported) ============== =================== ====================== ========================= Revenue 1,439 million +197.31% vs. prior 7,619 million NT dollars year same month

Pre-tax Net 126 million +641.18% vs. prior 439 million Profit NT dollars year same quarter

Net Profit 100 million +1566.67% vs. prior 342 million Attributable NT dollars year same quarter to Parent Owners

Earnings Per 2.36 NT dollars +1473.33% vs. prior 8.06 NT dollars Share year same quarter

4. Whether any material events under Article 4 of the 'Procedures for Verification and Disclosure of Material Information by Listed Companies' of the Taiwan Stock Exchange Corporation apply: No 5. Whether any press briefing under Article 11 of the above procedures is required: No 6. Complete financial information is available on the Public Information Observation Station via the following paths: (1) Recent operating revenue and profit/loss: Basic Information > Highlights (2) Historical monthly revenue: Operations Overview > Monthly Revenue > Monthly Revenue Information under IFRS (3) Historical profit/loss (audited/reviewed): Financial Statements > Under IFRS > Consolidated/Individual > Comprehensive Income Statement (4) Historical profit/loss (voluntary self-reported): Operations Overview > Self-Reported Earnings Announcement: None 7. Other Matters to be Disclosed: None