In order to reduce the use of industrial water and costs, Amkor Technology Korea analyzes the system and basic unit of the amount of used water and wastewater throughout the process and by continuously detecting areas of further improvement and improving these factors, focuses on the reutilization of wastewater. The company introduced ISO 14001 and continuously attract employees to participated in the environment, facility, production, and other areas in order to effectively improve the current conditions and through the exchange of ideas between employees, this maximizes productivity and reduces the use of industrial water in the long term.

 Amkor Technology Korea's wastewater treatment facility separately collects wastewater from the semiconductor production process according to its features. Good quality wastewater is transferred to the re-use facility and used as industrial water after process. Wastewater with heavy metal is processed through the membrane system and the physio-chemical treatment facility and then discharged. An eco-friendly operation is successfully presenting.