[Xingtai] Correction Notice for March and Cumulative March-April Revenue

1. Date of Occurrence: 2026/05/19 2. Company Name: Xingtai Industry Co., Ltd. 3. Relationship with the Company: The Company 4. Mutual Shareholding Ratio: Not Applicable 5. Reason for Occurrence: Following the audit of the first quarter of 2026 by certified public accountants, adjustments were made to the timing of revenue recognition for subsidiaries. 6. Items/Reports Corrected: March monthly revenue; Cumulative revenue for March-April. 7. Figures/Content Before Correction: March monthly revenue 27,060,000 NTD; Cumulative revenue 66,770,000 NTD. April monthly revenue 14,862,000 NTD; Cumulative revenue 81,632,000 NTD. 8. Figures/Content After Correction: March monthly revenue 19,260,000 NTD; Cumulative revenue 58,970,000 NTD. April monthly revenue 14,862,000 NTD; Cumulative revenue 73,832,000 NTD. 9. Countermeasures: After publishing the significant information on the Market Observation Post System (MOPS), the corrected amounts were re-uploaded. 10. Other Matters: None.