South Korean stocks closed lower Thursday as investors sat on the sidelines ahead of the release of some key US inflation data and the holiday this week. The local currency gained against the US dollar. The benchmark Korea Composite Stock Price Index shed 9.93 points, or 0.37 percent, to 2,642.36. Trade volume was moderate at 484 million shares worth 12.5 trillion won (US$9.44 billion), with losers outpacing gainers ...