Seoul: Samsung Electronics Co Ltd is set to spend at least another 10 trillion won (Dh33.7 billion, $9.2 billion) to boost capacity at a new South Korean chip plant, a 64 per cent increase over announced investment plans, domestic online news service MoneyToday reported. The world’s top memory chip maker said late last year it would invest 15.6 trillion won to build the plant, its biggest ever commitment to a single production facility, as it ramps up its semiconductor business to offset slowing smartphone earnings. The plant is scheduled to begin production in 2017, but MoneyToday, which did not cite sources, did not specify when the additional investment would take place.