Setting a brisk pace, the South Koreans benefited from Pakistan's erratic strikers, who missed chances galore in the first half.
Nam Hyun-Woo converted two penalty corners for the Koreans, who opened the scoring in the 18th minute on their second penalty corner award.
Pakistan came back strongly with nice field work, but Muhammad Waqas pushed a shot wide after getting a cross in front of an open goal.
Pakistan skipper Sohail Abbas then came close to equalising from their first penalty corner when his shot hit the edge of goalkeeper Lee Myung-Ho's pads and deflected on to the post before rebounding into play.
Abbas had an off day in office today as he failed to penetrate the Korean defence on all four penalty corners Pakistan earned in the game.
Striker Shafqat Rasool then failed to establish control of a diagonal ball inside the circle with an open goal in front.
Nam again shot on target in the 44th minute to make it 2-0 for South Korea. MORE