Tech giant Samsung Electronics Co Ltd said on Monday it will not unveil its Galaxy S8 smartphone at the Mobile World Congress (MWC) trade show this year, suggesting the flagship model's launch may be later in the year than its 2016 version. Samsung mobile chief Koh Dong-jin said the phone would not get a launch event at the MWC event in Barcelona, which begins on Feb. 27, unlike the previous Galaxy S smartphones. Koh did not comment on when the company planned to launch the new handset, the first premium model Samsung is due to release since the failure of its Note 7 flagship device in October over safety issues.