1589 Yung-Kuan-KY

Release Date: July 2, 2025 Statement Date: July 1, 2025 Statement Time: 18:02 Company Code: 1589 Company Name: Yung-Kuan-KY Subject: Announcement of the Company's Actual and Projected Cash Inflows and Outflows for the Previous Month and the Next Three Months, Outstanding Short- and Long-Term Debt as of the End of the Previous Month, and Utilization of Bank Financing Facilities Relevant Clause: Clause 51 Event Date: July 1, 2025 Details: 1. Event Date: July 1, 2025 2. Company Name: Yung-Kuan Energy Technology Group Limited 3. Relationship to Company (Please specify '本公司' or 'Subsidiary'):本公司 (Parent Company) 4. Cross-shareholding Ratio: Not applicable 5. Reason for Announcement: In accordance with the requirements of the Taiwan Stock Exchange, the company announces the actual and projected cash inflows and outflows for the previous month, and the outstanding balances of short- and long-term debt and utilization of bank financing facilities as of the end of the previous month (Unit: NT$ thousand).

(1) Actual and Projected Cash Flow for the Previous Month and the Next Three Months

Item　　　　　　　June 2025　　　July 2025　　　August 2025　　　September 2025 (Actual)　　　 (Forecast)　　 (Forecast)　　　 (Forecast) ────────────　──────────　──────────　───────────　──────────── Opening Balance　1,146,350　　　1,138,115　　　 702,743　　　　585,977 Cash Inflow　　　 778,272　　　 601,096　　　 674,657　　　　915,689 Cash Outflow　　　786,507　　　1,036,468　　　 791,423　　　　936,784 Closing Cash　　　1,138,115　　　702,743　　　 585,977　　　　564,882

(2) Outstanding Short- and Long-Term Debt and Bank Financing Facility Utilization as of End of Previous Month

Item　　　　　　　Financing Limit　Amount Drawn　　Available Balance ────────────　─────────────　────────────　─────────────── Short-term Loan　　5,568,876　　　 5,568,876　　　　　　0 Medium-Long Term　 7,540,494　　　 7,540,494　　　　　　0

6. Response Measures: None. 7. Other Matters to be Disclosed: The above figures are estimates based on the company's current situation.