[Winbond] Announcement of Equipment Procurement

1. Name and nature of the subject: Equipment for business operations 2. Date of occurrence: 2026/03/12 ~ 2026/05/26 3. Date of board approval: 2026/05/05 4. Other approval dates: N/A 5. Transaction quantity/price/total: A batch of equipment; cumulative total of 1,257,911,529 TWD 6. Counterparty and relationship: TOKYO ELECTRON LIMITED; no relationship 7. Related party transaction details: N/A 8. Ownership history: N/A 9. Expected gain/loss: N/A 10. Payment terms: Based on order conditions 11. Decision method: Negotiation and evaluation in accordance with company asset disposal procedures 12-22. Professional valuation: N/A 23. Purpose: For production use 24-25. Objections/Related party status: None 26-30. Other: N/A 31. Other notes: Approved by the board on 2025/10/27, 2026/02/10, and 2026/05/05.