SHANGHAI, Sept. 30 (SMM) –Shanghai spot copper offers were quoted between discounts of negative RMB 100-0/mt today. Traded prices for standard-quality copper were between RMB 53,200-53,300/mt, and RMB 53,300-53,400/mt for high-quality copper. Although SHFE copper prices rebounded slightly, spot copper offers were reported at discounts across the board due to settlement on the last trading day and risk aversion sentiment before China's National Day holiday. Only a few enterprises were active moving goods for cash generation at the month's end, keeping both supply and demand quiet.