SHANGHAI, Sept. 9 (SMM) – Traded prices of spot aluminum in Shanghai were between RMB 17,850-17,890/mt on September 9th, with premiums of RMB 0-40/mt over SHFE current-month aluminum prices. Low-iron aluminum was traded between RMB 17,890-17,930/mt. Traded prices of spot aluminum in Wuxi were between RMB 17,830-17,870/mt. SHFE aluminum not only led other base metals to gain, but also pushed spot aluminum prices slightly higher. Position building was not seen before the coming Mid-Autumn Festival, and goods movements were mainly seen among middlemen. Market sentiment was slightly active.