ANDERSON GROUP (1528) Corrects Cumulative Revenue for Jan-Apr 2026

Date of announcement: 2026/05/20 Company Symbol: 1528 Company Name: ANDERSON GROUP Subject: Correction of the company's announced monthly revenue for Jan-Feb 2026 and cumulative revenue for Jan-Apr 2026

Explanation: 1. Date of occurrence: 2026/05/20 2. Company name: ANDERSON GROUP CO., LTD. (恩德科技股份有限公司) 3. Relationship to the company: This company 4. Mutual shareholding ratio: Not applicable 5. Reason for occurrence: Following an auditor's review of the first quarter of fiscal year 2026, discrepancies arose between the announced revenue and the reviewed figures due to the elimination of inter-company transactions in the consolidated financial statements and different foreign currency conversion bases. 6. Corrected information item/report name: Announced monthly revenue for Jan-Feb 2026 and cumulative revenue for Jan-Apr 2026 7. Pre-correction amount: Jan 2026 monthly revenue: NT$250,494 thousand; Cumulative revenue: NT$250,494 thousand. Feb 2026 monthly revenue: NT$220,658 thousand; Cumulative revenue: NT$471,152 thousand. Mar 2026 monthly revenue: NT$277,042 thousand; Cumulative revenue: NT$748,194 thousand. Apr 2026 monthly revenue: NT$241,070 thousand; Cumulative revenue: NT$989,264 thousand. 8. Post-correction amount: Jan 2026 monthly revenue: NT$225,360 thousand; Cumulative revenue: NT$225,360 thousand. Feb 2026 monthly revenue: NT$209,702 thousand; Cumulative revenue: NT$435,062 thousand. Mar 2026 monthly revenue: NT$277,042 thousand; Cumulative revenue: NT$712,104 thousand. Apr 2026 monthly revenue: NT$241,070 thousand; Cumulative revenue: NT$953,174 thousand. 9. Countermeasures: After posting a material information announcement on the Market Observation Post System, the corrected amounts will be re-uploaded. 10. Other matters to be specified: None.