SHANGHAI, Sept. 28 (SMM) – Spot copper in Shanghai traded at discounts of RMB 70-20/mt over SHFE 1510 copper contract on Monday. Standard-quality copper traded at RMB 38,740-38,840/mt and RMB 38,760-38,860/mt for high-quality copper. Sellers scrambled to sell before the week-long holiday, but there were only a small number of processors hunting for cheap goods. Spot discounts are expected to widen tomorrow on poor demand.