SHANGHAI, Oct. 17 (SMM) – Spot aluminum was mainly traded between RMB 15,280-15,300/mt in Shanghai on Wednesday, with discounts between RMB 80-100/mt. Low-iron aluminum was traded between RMB 15,350-15,360/mt. The SHFE 1212 aluminum contract was mired, dampening sentiment in spot aluminum market. Mainstream traded prices met strong resistance at RMB 15,300/mt. Supply was ample, while downstream producers generally watched from the sidelines, depressing overall trading.