In 2018, Attorney Chang Hyuk Kim joined the Joongwon Law Firm. He advised and performed tasks on litigations relating to the Korea Gas Corporation (KOGAS), Meritz Fire & Marine Insurance Co., Ltd., Hanwha Life Insurance Co., Ltd., and others. Attorney Kim also carried out various cases including civil, criminal, administrative, and family cases. Since 2019, Attorney Kim has been working at Law Firm LIN.