2027 Ta-Cheng Steel

Announcement Date: August 13, 2027 Statement Date: August 12, 2027 Statement Time: 14:59:24 Company Code: 2027 Company Name: Ta-Cheng Steel Subject: Correction of the Company's Disclosure Details of Endorsement Guarantees for July 2027 and Related-Party Transaction Asset Acquisition Information for June 2027 Applicable Clause: Item 51 Factual Date: August 12, 2027 Explanation: 1. Factual Date: 08/12/2027 2. Company Name: Ta-Cheng Stainless Industrial 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: Correction of the Company's Disclosure Details of Endorsement Guarantees for July 2027 and Related-Party Transaction Asset Acquisition Information for June 2027 6. Items/Report Names to be Corrected: Disclosure Details of Endorsement Guarantees for July 2027 and Related-Party Transactions - Asset Acquisition for June 2027 7. Amounts/Content/Page Before Correction: Disclosure Details of Endorsement Guarantees for July 2027 Endorsed Guarantee Recipient: TMCT Products, Inc. Actual Disbursement Amount: 160,298 thousand NT dollars Related-Party Transactions / Asset Acquisition for June 2027 Related Party Name: Cheng Tao Industrial Co., Ltd. Acquired Asset Item: Miscellaneous Equipment Amount of Acquired Assets This Month: 541,913 thousand NT dollars Cumulative Amount of Acquired Assets This Year: 541,913 thousand NT dollars 8. Amounts/Content/Page After Correction: Disclosure Details of Endorsement Guarantees for July 2027 Endorsed Guarantee Recipient: TMCT Products, Inc. Actual Disbursement Amount: 129,240 thousand NT dollars Related-Party Transactions / Asset Acquisition for June 2027 Related Party Name: Cheng Tao Industrial Co., Ltd. (This company is not required to report) 9. Response Measures: Re-uploaded to the Public Information Observation Station. 10. Other Matters to be Clarified: None