Kao Hsing Chang Announces Resolutions of Board of Directors Meeting

1. Date of Occurrence: 2026/04/29 2. Company Name: Kao Hsing Chang Iron & Steel Co., Ltd. 3. Relationship with the Company (please enter 'the Company' or 'subsidiary'): The Company 4. Mutual shareholding ratio: Not applicable 5. Reason for occurrence: Resolutions of the 22nd Board of Directors Meeting No. 11 are as follows: (1) Approval of the 2026 First Quarter Financial Report (2) Amendment of "Stock Affairs Internal Control System" (3) Amendment of "Shareholders Meeting Rules of Procedure" (4) Change of the Company's 2026 Annual Shareholders' Meeting agenda (5) Cooperation with a builder to participate in government bids 6. Countermeasures: A material information announcement should be issued. 7. Other matters that need to be specified (if the subject of the event or resolution is a public company or above, this material information also complies with Article 7, Paragraph 9 of the Enforcement Rules of the Securities and Exchange Act regarding matters that have a significant impact on shareholders' equity or securities prices): None Keywords: Material Information