Samsung Electronics said Tuesday that TM Roh, head of its Mobile eXperience (MX) business, will serve as acting head of the Device eXperience (DX) division, according to a Tuesday company statement.

The company also appointed Won-joon Choi as chief operating officer of the MX business. Choi, previously president and head of MX R&D, will retain his roles as head of the R&D office and global operations team.

Cheolgi Kim was named head of the digital appliances business after serving as executive vice president and head of strategic marketing at MX.