Chaintek Announces Penalty for Violation of Water Pollution Control Act

1. Date of Incident: July 7, 2026 2. Entity Involved: The Company 3. Cause of Incident (Event Description): Suspended solids in process wastewater (simple discharge outlet) from the Company's Houlip II Plant failed to meet effluent standards, violating Article 7, Paragraph 1 of the Water Pollution Control Act, and was penalized under Article 40, Paragraph 1. 4. Handling Process: Paid the fine as stipulated in the penalty notice and assigned personnel to attend environmental training. 5. Penalty Details: Fine and 2-hour environmental training session. 6. Was a Fine Imposed: Yes 7. Amount of Fine (NT$): 1,674,000 8. Estimated Potential Loss or Impact (NT$): 1,674,000 9. Potential Insurance Payout Amount (NT$): None 10. Improvement Status and Future Response Measures: The Company has formally instructed relevant departments to improve equipment within a specified timeframe to ensure future compliance with regulations. 11. Has a Major Information Announcement Been Previously Issued for the Same Incident: No 12. Other Matters to Be Disclosed: None