SEOUL: Samsung Electronics, the world's top maker of smartphones, TVs and memory chips, is cutting up to 30 per cent of its overseas staff at some divisions, three sources with direct knowledge of the matter told Reuters. South Korea-based Samsung has instructed subsidiaries worldwide to reduce sales and marketing staff by about 15 per cent and the administrative staff by up to 30 per cent, two of the sources said. The plan will be implemented by the end of this year and will impact jobs across