In 2011, the Taoyuan plant was selected as a pilot plant for the implementation of the ISO50001 energy management system. In 2012, the company successfully applied for the ISO 50001 external certification. Based on the experience of successful establishment of the system in the Taoyuan Plant, ISO 50001 energy management systems were implemented simultaneously in the Yangmei and Longtan Plants in Taiwan to ensure systematic management. The plants passed the external certifications in 2015.