In North China today, spot prices of #1 copper cathode against the front-month contract were at a discount of 300-240 yuan/mt, with an average discount of 270 yuan/mt, unchanged from the previous trading day. Transaction prices ranged from 91,470 to 92,230 yuan/mt, with an average of 91,850 yuan/mt, down 50 yuan/mt from the previous trading day.