9906 Shin Ba Ba: Correction of Endorsement Guarantee Reporting for April 2026

1. Date of occurrence: 2026/05/21. 2. Company name: Jiangcheng Construction Co., Ltd. 3. Relationship: Subsidiary. 4. Mutual shareholding: 100%. 5. Reason: Correction of endorsement guarantee details for April 2026. 6. Item corrected: April 2026 endorsement guarantee details. 7. Before correction: Jiangcheng Construction, Max balance 250,000, Ending balance 250,000, Ratio 16.8%. 8. After correction: This guarantee was approved by the board on 5/6 and should be excluded from the April 2026 reporting scope. 9. Measures: Applied for correction and re-uploaded to the Market Observation Post System. 10. Other: None.