Kao Hsing Chang Announces Board Resolution Matters

1. Factual Date: 2026/08/11 2. Company Name: Kao Hsing Chang Steel Co., Ltd. 3. Relationship with Company (Enter '本公司' or 'Subsidiary'):本公司 4. Cross-shareholding Ratio: Not applicable 5. Reason for Occurrence: The 22nd Board of Directors, 12th Meeting resolved the following matters: (1) Approval of the 2026 Second Quarter Financial Report (2) Proposal for Borrowing from Financial Institutions in 2026 (3) Proposal for Subscribing to the Second Cash Capital Increase of Ta-Kang Jetport Co., Ltd. (4) Revision of the Company's "Corporate Governance Practice Code" (5) Amendment to the Company's "Board of Directors, Chairman, and General Manager Approval Authority Table" (6) Amendment to the Policy on Acquiring Individual Securities Exceeding NT$100 Million, Including Removal of Per-Share Price Ceiling (7) 2025 Sustainability Report (8) Appointment of the Manager of the Steel Pipe Division as Spokesperson 6. Response Measures: Issuance of Material Information 7. Other Matters to be Stated (If the subject of the event or resolution is a publicly issued company or above, this material information also qualifies as a matter under Article 7, Paragraph 9, Item 9 of the Enforcement Rules of the Securities and Exchange Act that significantly affects shareholders' rights or securities prices): None Keywords: Material Information