SHANGHAI, Sept. 5 (SMM) – Trading prices of spot aluminum in Shanghai were between RMB 17,780-17,820/mt, with premiums of positive RMB 70-100/mt over SHFE current-month aluminum prices. Low-iron aluminum was traded between RMB 17,840-17,880/mt. Trading prices of spot aluminum in Wuxi were between RMB 17,760-17,820/mt. Though goods holders were unwilling to sell at lower prices and most kept quotes firm at RMB 17,800/mt, lower priced supplies were still seen on rare purchases. Nevertheless, overall market transactions were sluggish.