Mr. Chang-Gyu Hwang has been the Chief Executive Officer of KT Corporation since January 27, 2014. Mr. Hwang served as the President of Semiconductor Business at Samsung Electronics Co. Ltd. from January 2004 to May 2008. He served as Chief Technology Officer of Samsung Electronics Co. Ltd. since May 2008. He has been Standing Director of KT Corporation since January 2014. He has been a Director of KT Corp. since December 22, 2015. He serves as a Board Member at Gsma Ltd. He served as a Non-Independent Director of KT Corp. since January 27, 2014 until December 22, 2015. Mr. Hwang holds a Bachelor's Degree and Master's Degree in electric engineering from Seoul National University and a Ph.D. in electronic and computer engineering from the University of Massachusetts, Amherst.