[Wing Kai] Announcement of Administrative Penalty for Violation of Air Pollution Control Act

1. Date of occurrence: 2026/04/23 2. Subject: The Company 3. Reason: The company's bag filter and other equipment failed and could not display monitoring values, failing to maintain the normal operation of air pollutant monitoring facilities, violating Article 23, Paragraph 1 of the Air Pollution Control Act. 4. Process: The company has repaired the equipment and strengthened periodic inspection and maintenance to comply with laws. 5. Penalty: Fine of NT$ 1,680,000 and 8 hours of environmental training. 6. Is there a fine: Yes 7. Fine amount: NT$ 1,680,000 8. Estimated loss or impact: NT$ 1,680,000 9. Insurance claim: None 10. Improvement and response: Strengthen employee education, training, and regular maintenance of monitoring facilities and collection hoods to ensure normal operation. 11. Previous announcement: No 12. Other: None