Memory chips made by Samsung Electronics are displayed at the company's main office in Seoul January 29, 2010. Samsung Electronics expects rapidly recovering demand for its premium computer memory chips and flat screen TVs to drive growth this year, with the unwinding of global stimulus measures the key risk for sales. Seoul shares extended losses to post their lowest close in eight weeks on Friday, led by large cap issues with Samsung Electronics retreating despite its solid quarterly results. REUTERS/Lee Jae-Won (SOUTH KOREA - Tags: BUSINESS)