SHANGHAI, Sept. 18 (SMM) – Trading was brisk in east China spot aluminum market on Friday, driving prices up. Prices were mainly between RMB 11,870-11,880/mt in Shanghai, discounts of RMB 50-40/mt over SHFE 1510 aluminum, versus RMB 11,870-11,890/mt in Wuxi and RMB 11,870-11,880/mt in Hangzhou.