SHANGHAI, Oct. 27 (SMM) –Shanghai spot copper offers were quoted between premiums of positive RMB150-250/mt today. Traded prices for standard-quality copper were between RMB 57,900-58,100/mt, and RMB 58,000-58,250/mt for high-quality copper. As SHFE copper prices felt weak to move higher and capital pressures before the month's end triggered market worries over a continuous copper price rebound, cargo-holders were eager to sell, bringing spot copper supply back into the sufficient situation. Downstream producers and speculators were wary of entering the market, keeping market activity quiet.