| 09/23 | President, Korean Spinal Neurosurgical Society |
| 11/21 | Executive Director, Korean Minimally Invasive Spine Surgery Society |
| 03/24 | President in elect, Korean Geriatric Neurosurgery Society |
| 11/20 | Director, Korean Neurosurgical Society |
| Professor, Depart. Of Neurosurgery, The Catholic University of Korea |