LLZ Company manufacturers metal detectors in California at a cost of $9 per unit.

LLZ Company manufacturers metal detectors in California at a cost of $9 per unit. The most expensive component to make is the sensor which goes in the finished product. The cost is $5 per sensor. Last month LLZ acquired a company in Mexico that makes the sensors for $1 per sensor. LLZ plans to move all sensor manufacturing operations to the factory in Mexico. What is the movement of this cost saving process called?