( LEAD ) Convenience store CU sets up electric car superchargers on Jeju ( ATTN : ADDS more info in last 2 paras ; minor edits ) SEOUL , Jan . 22 ( Yonhap ) -- BGF Retail Co . , the operator of CU , South Korea ' s largest convenience store chain , said Monday it has established electric car superchargers at five of its stores on the country ' s resort island of Jeju in its latest effort to boost convenience for eco - friendly car owners . BGF Retail said it takes 30 minutes to fully charge vehicles at the stations . When fully charged , cars can drive 200 kilometers on average . The service in Jeju will be free of charge until the end of January , the company said . According to the Ministry of Land , Infrastructure and Transport , a total of 25 , 108 electric cars are registered throughout the country as of December 2017 . Among them , 9 , 206 , or 36 . 6 percent , are on Jeju Island . The Jeju provincial government has been at the forefront of electric initiatives under its " Carbon Free Island " project . The regional government provides various subsidies for electric vehicle users . This undated photo provided by BGF Retail Co . , the operator of CU , South Korea ' s largest convenience store chain , shows a charger for an electric car at one of its stores on the country ' s resort island of Jeju . The company said it began operating superchargers at five of its stores on Jan . 22 , 2018 . ( Yonhap ) scaaet @ yna . co . kr ( END )