SHANGHAI, Aug. 8 (SMM) –On Tuesday, SHFE 1709 tin opened at RMB 148,030/mt. The contract rose to RMB 148,400/mt, but then quickly fell back, down to near RMB 146,700/mt before the noon. In the afternoon, SHFE 1709 tin hit a low of RMB 146,200/mt before ending down RMB 890/mt or 0.6% at RMB 146,860/mt. Trading volumes increased 3,574 lots to 15,868 lots, and positions decreased 30 lots to 20,870 lots. SHFE 1709 tin will test support at RMB 146,000/mt.