Samsung posts Q1 operating profit of US$ 4.5 bil. ArirangNews 0 83 04.08 12:03 https://www.youtube.com/watch?v=mAIcNpKAfPo + 19 https://www.youtube.com/feeds/videos.xml?channel_id=UCzznO4xSV8BKnUBPy… + 19 Samsung posts Q1 operating profit of US$ 4.5 bil.