[Zhen Ding-KY] Announcement on behalf of subsidiary Leading Semiconductor Technology (Shenzhen) Co., Ltd. regarding the acquisition of machinery and equipment

1. Name and nature of the underlying asset: Machinery and equipment 2. Date of occurrence: 2025/5/16~2026/5/15 3. Date of board of directors' approval: N/A 4. Other approval date: Approved by the General Manager on May 15, 2026 5. Quantity, unit price, and total transaction amount: Quantity: 1 batch. Total transaction amount: NT$1,353,557,000 6. Counterparty and its relationship with the Company: Counterparty: Nikko-Materials Co., Ltd. Relationship: None 7. If the counterparty is a related party, reasons for choosing them: N/A 8. Prior ownership by a related party in the past five years: N/A 9. Expected gain (or loss) on disposal: N/A 10. Terms of delivery or payment, restrictive covenants: According to the purchase contract 11. Method of determining the transaction price and decision-making unit: Price comparison and negotiation based on market conditions, decided according to the company's delegation of authority. 12-22. Appraisal details and brokerage fees: N/A or None 23. Concrete purpose of the acquisition: For business use 24. Dissenting directors: N/A 25. Is it a related-party transaction: No 26. Approval by supervisors or audit committee: N/A 27-31. Other regulatory assessments and matters: N/A or None