SHANGHAI, Jun. 29 (SMM) –On Thursday, SHFE 1709 tin opened at RMB 144,450/mt. The most active fell back after rising to near RMB 145,000/mt, but rebounded in the afternoon to RMB 145,330/mt thanks to long buying. Finally, SHFE 1709 tin ended up RMB 1,480/mt or 1.03% at RMB 145,190/mt. Trading volumes decreased 2,280 lots to 14,526 lots, and positions increased 1,086 lots to 20,662 lots. Ferrous metals prices shot up, giving a boost to nonferrous metals prices. SHFE 1709 tin will challenge resistance at RMB 146,000/mt.