As a Production Supervisor, you receive an urgent email from the Quality Control (QC) department stating that a critical batch of electronic components (Batch ID: EL-2024-03-01) has failed final inspection due to a recurring soldering defect. This defect could lead to product malfunction and potential safety hazards for end-users. The QC report recommends immediately halting assembly lines using this batch. What is the most critical immediate action you should take to mitigate risks and address this issue effectively?