Samsung Electronics (OTCPK:SSNLF) appointed its mobile chief TM Roh as acting head of its consumer and smartphone business following the death of Co-CEO Han Jong-Hee last week.

Roh was named Acting Head of the Device eXperience, or DX, division, in addition to his current role as Head of Mobile eXperience, or MX, business. Roh previously served as president and head of MX business and head of the Corporate Design Center.

Han died last Tuesday due to a cardiac arrest. He oversaw the consumer electronics and mobile devices divisions at Samsung since his appointment as Co-CEO in 2022. Han's death left newly appointed Co-CEO Jun Young-hyun solely heading the South Korean tech giant as the company seeks to revive growth.

In addition, Samsung appointed Won-joon Choi to the newly created Chief Operating Officer, or COO, role at the MX business. He would continue his current roles as head of R&D Office and head of Global Operation Team of MX business.

Samsung named Cheolgi Kim as head of its Digital Appliances Business. Kim previously served as executive vice president and head of Strategic Marketing Office of MX business.

The appointments will help reduce Jun's burden, who oversees the vital semiconductor business. 

"Nothing has been decided whether or not to keep the previous co-CEO structure at the moment," said a spokesperson to Reuters, adding that the company's board would take a decision later, the report added.

Samsung did not immediately respond to a request for comment from Seeking Alpha.

Samsung had warned of slower demand for its AI chips in the first quarter of 2025, partly due to U.S. export restrictions, while announcing its first quarter results on Jan. 31. The market for HBM is led by South Korean company SK Hynix, followed by Samsung, and to a lesser extent by American chipmaker Micron Technology (MU). SK hynix is the major supplier of these chips to Nvidia (NVDA).