SEOUL : South Korea's pension fund has been selling dollars in the onshore foreign exchange market in recent weeks, capping losses in the won currency as the dollar surges, two sources with knowledge of the matter told Reuters. The National Pension Service (NPS), the world's third-largest public pension fund with more than $810 billion in assets, is a major mover of domestic financial markets. "The pension fund is selling dollars in the spot market lately," one source said. "It is seen related