SHANGHAI, Jun. 27 (SMM) –SHFE 1709 tin opened at RMB 142,600/mt on Tuesday, and slid to RMB 141,740/mt in the morning session. But, the most active contract recovered most of today’s losses in the afternoon on short covering, and ended down RMB 430/mt or 0.3% at RMB 142,970/mt. Trading volumes increased 1,082 lots to 14,826 lots, and positions increased 7,444 lots to 20,328 lots. SHFE 1709 tin will test support at RMB 141,000/mt and resistance at RMB 146,000/mt.