[ITEQ] Announcement on behalf of subsidiary ITEQ (Kunshan) Corporation regarding the construction contract for a new plant on self-owned land

1. Type of contract: Construction contract 2. Date of occurrence: 2026/4/22 3. Date of board resolution: 2025/7/30 4. Other decision date: N/A 5. Counterparty and relationship: Jiangsu Yongtai Construction Engineering Co., Ltd. Relationship: None. 6. Main content of contract: Plant construction project. The contract value is approx. TWD 1.921 billion. Plus a previous contract with the same party in the past year of TWD 0.098 billion, the cumulative amount is approx. TWD 2.019 billion. The project is contracted according to the company's construction schedule. 7-9. Appraiser info: N/A 10. Purpose of acquisition: For production and operational needs. 11. Dissenting opinions: N/A 12. Related party transaction: No 13-20. Other standard items: N/A 21-22. Other matters: None