6282 AcBel: Correction of Endorsement and Guarantee Disclosures for May and June 2026

Announcement Date: 2026-07-23 Statement Date: 2026-07-22 Statement Time: 15:03:07 Company Code: 6282 Company Name: AcBel Subject: Correction of Endorsement and Guarantee Disclosure Details for May and June 2026 Applicable Clause: Clause 51 Factual Date: 2026-07-22

1. Factual Date: 2026/07/22 2. Company Name: Kang-Yueh Technology Co., Ltd. 3. Relationship with Company (Please enter '本公司' or 'Subsidiary'): Subsidiary 4. Cross-shareholding Ratio: Not applicable 5. Reason for Occurrence: Correction of endorsement and guarantee disclosure details for May and June 2026 6. Items/Reports Corrected: - Endorsement and Guarantee Disclosure Details for May 2026 - Endorsement and Guarantee Disclosure Details for June 2026 7. Amounts/Content/Pages Before Correction: - May 2026: Not applicable - June 2026: Not applicable 8. Amounts/Content/Pages After Correction: May 2026: - Kang-Yueh provides endorsement guarantee for Lian Energy - Endorsement guarantee limit per single enterprise: 10,825,434 thousand NT dollars - Cumulative maximum balance to date: 50,000 thousand NT dollars - Monthly increase (decrease) amount for individual subsidiary: 50,000 thousand NT dollars - End-of-period endorsement guarantee balance: 50,000 thousand NT dollars - Actual amount drawn: 0 thousand NT dollars - Endorsement guarantee amount secured by property: 0 thousand NT dollars - Ratio of cumulative endorsement guarantee amount to net value in latest financial statement: 0.005 - Maximum endorsement guarantee limit: 10,825,434 thousand NT dollars

June 2026: - Kang-Yueh provides endorsement guarantee for Lian Energy - Endorsement guarantee limit per single enterprise: 10,825,434 thousand NT dollars - Cumulative maximum balance to date: 50,000 thousand NT dollars - Monthly increase (decrease) amount for individual subsidiary: 0 thousand NT dollars - End-of-period endorsement guarantee balance: 50,000 thousand NT dollars - Actual amount drawn: 0 thousand NT dollars - Endorsement guarantee amount secured by property: 0 thousand NT dollars - Ratio of cumulative endorsement guarantee amount to net value in latest financial statement: 0.005 - Maximum endorsement guarantee limit: 10,825,434 thousand NT dollars

9. Response Measures: Corrected information has been re-uploaded to the Public Information Observation Station 10. Other Matters to be Disclosed: None