... SHFE 1104 aluminum contract prices opened significantly lower at RMB 16,750/mt on Tuesday due to tumbled financial markets and tighter monetary policy in China. ... and the lowest level at RMB 16,860/mt and RMB 16,750/mt, respectively, and finally closed at RMB 16,815/mt, down RMB 110/mt or down over 0.6%. ....