Japan's Nikkei Stock Average traded lower on Friday amid renewed worries on Greece as European officials postponed delivering financial aid until the country will legally approve austerity measures. Nikkei 225 index lost 0.46% or 41.59 points and closed at 8,960.65. Sumitomo Mitsui Financial Group Inc declined 2.4% and Mitsubishi UFJ Financial Group Inc. dropped 2.8%. On positive side Toshiba Corp. surged 1.5%, after US approved construction of its first new nuclear plant in 30 years. Toshiba's subsidiary is ordered to construct the plant.