【SYNTEC】Explanation Regarding the Company's Network Cybersecurity Incident

1. Date of Occurrence: 2026/04/29 2. Cause of Occurrence: The company experienced a network cybersecurity incident. 3. Handling Process: Upon receiving an anomaly notification, the company's information security unit verified it as an encryption attack. It immediately activated its cybersecurity response mechanism and conducted comprehensive inspection and protection operations. After initial confirmation, the company's internal information systems and official website are operating normally, without substantial impact, and no confidential data or important documents were found to have been leaked. The company will continue to strengthen monitoring and protective measures to ensure the security of information systems and operational stability. 4. Estimated Potential Loss or Impact: Assessed to have no significant impact on the company's operations. 5. Amount of Insurance Claim Potentially Obtainable: Not applicable 6. Improvement Status and Future Response Measures: The company will continue to enhance the security management and control of its network and information infrastructure to ensure information security. 7. Other Matters to be Specified: None