Changhwan Son is a certified tax accountant. Mr. Son's areas of practice include tax audit, preliminary tax health check-up, general tax counseling, tax litigation, including tax appeal.

Previously, Mr. Son handled tax audit and planning & analyzing (e.g. tax reduction and tax issues involving corporate restructuring) at the Investigation Division, National Tax Service Dobong District Office; the Investigation Division, National Tax Service Yongsan District Office; and the Corporate Tax Divison and the Investigation Bureau, National Tax Service Seoul Regional Office for nine years. He also worked at Kookmin Bank for four years as a member of the Corporate Finance Consulting Team, where he provided consultation on family business succession to small and medium sized firms and consultation on tax, such as inheritance tax, gift tax, and transfer income tax. Since joining Bae, Kim & Lee LLC in 2013, he has primarily dealt with tax issues, including health check-up, tax audit and tax appeal.