Currently, Tun Tun occupies the position of Chief Operating Officer & Executive Director at First Myanmar Investment Co., Ltd. Tun Tun is also on the board of Serge Pun & Associates (Myanmar) Ltd., Meeyahta International Hotel Ltd. and Memories Group Ltd. and Associate Member at The Chartered Governance Institute.

In the past Mr. Tun was Chief Financial Officer for Myanmar Thilawa SEZ Holdings Public Co. Ltd.

Mr. Tun received an MBA from National University of Singapore.