Chia Hsin Cement Corp.: Correction of Related Party Transaction Filing for January-February 2026

1. Date of Occurrence: 2026/04/30 2. Company Name: Chia Hsin Cement Corp. 3. Relationship with Company: This Company 4. Mutual Shareholding Ratio: Not Applicable. 5. Reason for Occurrence: Correction of the company's detailed related party transaction data for January-February 2026. 6. Item/Report Name: Detailed Related Party Transaction Data for January-February 2026. 7. Previous Amount/Content/Page: January 2026 Related Party Transaction Filing Details [Purchase] Related Party Name: Cui Li Ti Co., Ltd. This Month's Purchase Amount: 2,900 thousand yuan Percentage of This Month's Consolidated Report Purchase Amount: 14.23% Year-to-Date Purchase Amount: 2,900 thousand yuan Percentage of Year-to-Date Consolidated Report Purchase Amount: 14.23% February 2026 Related Party Transaction Filing Details [Purchase] Related Party Name: Cui Li Ti Co., Ltd. This Month's Purchase Amount: 13 thousand yuan Percentage of This Month's Consolidated Report Purchase Amount: 0.03% Year-to-Date Purchase Amount: 2,913 thousand yuan Percentage of Year-to-Date Consolidated Report Purchase Amount: 4.49% 8. Corrected Amount/Content/Page: January 2026 Related Party Transaction Filing Details [Purchase] Related Party Name: Cui Li Ti Co., Ltd. This Month's Purchase Amount: 15 thousand yuan Percentage of This Month's Consolidated Report Purchase Amount: 0.08% Year-to-Date Purchase Amount: 15 thousand yuan Percentage of Year-to-Date Consolidated Report Purchase Amount: 0.08% February 2026 Related Party Transaction Filing Details [Purchase] Related Party Name: Cui Li Ti Co., Ltd. This Month's Purchase Amount: 529 thousand yuan Percentage of This Month's Consolidated Report Purchase Amount: 1.19% Year-to-Date Purchase Amount: 544 thousand yuan Percentage of Year-to-Date Consolidated Report Purchase Amount: 0.84% 9. Countermeasures: Re-upload to the Public Information Observation Station after data correction. 10. Other Matters to be Noted: None.