[ASE Group] Subsidiary Taiwan Fu-Lei Electronics sells Yangmei factory to related party

1. Subject of Transaction: Yangmei Factory: Land: Land Plot No. 810, Youshi Section, Yangmei District, Taoyuan City Building: No. 429, Gaoshi Road, Yangmei District, Taoyuan City 2. Date of Occurrence: May 25, 115 3. Board Approval Date: May 25, 115 5. Transaction Details: Land Area: 2,854.94 square meters (approx. 863.62 pings) Building and Parking Area: 9,619.99 square meters (approx. 2,910.05 pings) Total Transaction Amount: NT$566,000,000 (excluding tax) 6. Counterparty: ASE Semiconductor Manufacturing Co., Ltd. Taiwan Fu-Lei Electronics is a 100% owned subsidiary of ASE Semiconductor. 7. Reason for Transaction: Overall planning and effective utilization of factory space within the group, and expansion of testing capacity at ASE Semiconductor's Zhongli branch. 9. Expected Disposal Profit: Approximately NT$49,962,803. 11. Pricing Basis: Determined based on appraisal reports from professional agencies and evaluation in accordance with asset disposal regulations.