SHANGHAI, Aug. 18 (SMM) –SHFE 1510 aluminum drifted lower after opening at RMB 12,060/mt on Tuesday, due to plunging Chinese stock market. The most active contract touched day’s high of RMB 12,070/mt and day’s low of RMB 11,975/mt. Finally, it ended down RMB 75/mt or 0.62% at RMB 11,995/mt. Trading volumes were down 8,070 lots to 16,198 lots, and positions were down 650 lots to 139,000 lots. The contract suffered 4-day losing streak as positive impact from yuan’s depreciation has been digested.