By Hyunjoo Jin SEOUL (Reuters) – Samsung Electronics Co Ltd indicated on Monday that its latest flagship Galaxy S smartphone could be delayed as it pledged to enhance product safety following an investigation into the cause of fires in its premium Note 7 devices. Samsung mobile chief Koh Dong-jin said procedures had been put in place to avoid a repeat of the fires, as investors look to the launch of the South Korean tech giant's first premium handset since the Note 7, the Galaxy S8, some time this year. "Samsung Electronics will be working hard to regain consumer trust." However Koh said the Galaxy S8 would not be unveiled at the Mobile World Congress (MWC) trade show in Barcelona, which begins on Feb. 27, the traditional forum for Samsung premium product launches.