On February 1, 2013, Lee & Ko welcomed new associates from the Judicial Research & Training Institute. They are Hwayeon Kang, Saemee Kim, Hyunju Kim, Chan Woo Park, Taesu Park, Hyosung Seo, Jesik Yoon, Hwajin Lee), Jeongmin Joh, Joohye Hong, and Junghyun Hwang.

Also, on April 1, 2013, Lee & Ko welcomed Janghyun Ka, Minsik Kim, Samsung Kim, Jun Sung Kim, Kyung Gyoon Park, Yosub Shim, Sung Hui Yoon, YiJun Chang, and Min Seok Hyun, all of whom have served as Judge Advocate Officers.