SHANGHAI, May 18 (SMM) – Spot aluminum largely traded between RMB 13,070-13,090/mt in Shanghai on Monday, discounts of RMB 150-170/mt over SHFE 1506 aluminum contract, versus RMB 13,050-13,070/mt in Wuxi, and RMB 13,080-13,100/mt in Hangzhou. Spot discounts widened by RMB 50/mt after delivery of SHFE 1505 aluminum contract. Processors went bargain hunting in small amounts.