[Nidac] Improper Quality Control Practices and Establishment of Investigation Committee | May 2026

Overview of the Incident

Nidac identified suspected improper practices related to quality management and established an external specialized investigation committee. The scope includes certain process and design changes made since April 2020, with 96.7% of cases conducted without customer approval. To date, no impact on product safety or functionality has been confirmed. The company is actively conducting investigations and implementing measures to prevent recurrence. The investigation is scheduled to conclude by the end of August 2026.

Future Response and Impact

Nidac will thoroughly address the root cause and implement recurrence prevention measures based on investigation results, while providing explanations and responses to customers. The impact on business performance will be finally determined following the investigation conclusions. The company sincerely apologizes for the concern caused to stakeholders and aims to improve and rebuild trust.