[Zhen Ding KY] Subsidiary 'Qingding Precision Electronics (Huai'an)' Announces Acquisition of Equipment

1. Name and nature of the subject: Machinery and equipment 2. Date of occurrence: April 18, 2026 – June 4, 2026 3. Date of board approval: Not applicable 4. Other authorization: Authorized by General Manager (June 4, 2026) 5. Quantity, unit price, and total amount: One batch, total value 1,517,118,860 TWD 6. Counterparty and relationship: ATOTECH ASIA PACIFIC LTD. (No relationship with the company) 7. Related party transactions: Not applicable 8. Ownership within the last 5 years: Not applicable 9. Expected gain/loss: Not applicable 10. Terms of delivery/payment: According to the procurement contract 11. Method of decision: Comparison and negotiation based on market prices 12-22. Expert appraisal: Not applicable 23. Purpose of acquisition: For operational use 24-31. Other details: Not a related party transaction; no prior major announcements.