[South Korea's KOSPI Index Opens Down 0.38%, SK Hynix Drops 6.35%] Odaily Planet Daily News: According to Gate data, South Korea's KOSPI Index opened down 0.38% at 6,659.25 points, SK Hynix fell 6.35%, and Samsung Electronics dropped 4.05%; the Nikkei 225 Index opened 0.48% lower at 63,190.37 points.