【Chien Tien Steel】Announcement of the Company's Unaudited Consolidated Profit and Loss for March 2026

1. Date of occurrence of the event: 2026/04/24 2. Company name: Chien Tien 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: Announcement of the Company's unaudited consolidated profit and loss for March 2026 6. Countermeasures: None 7. Other matters to be specified (If the subject of the event or resolution is a public offering company or above, this material information also meets the requirements of 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): (1) Account title (Unit: Thousand NTD) March 2026 Jan-Mar 2026 ---------------------------------- ----------- ------------- Consolidated operating revenue NT$223,070,000 NT$670,131,000 Consolidated operating profit (loss) NT$-27,289,000 NT$-78,610,000 Consolidated profit (loss) before tax NT$-32,532,000 NT$-75,406,000 Net profit (loss) after tax attributable to owners of the parent NT$-31,809,000 NT$-59,386,000 Net profit (loss) per share after tax attributable to owners of the parent (NT$) -0.08 -0.14 (2) The unaudited figures have not been reviewed by a CPA. The actual figures are subject to the Company's financial reports audited (reviewed) by a CPA. This is hereby explained.