SHANGHAI, Mar. 18 (SMM) – SHFE 1605 aluminum opened at RMB 11,415/mt on Friday. The most active contract climbed to RMB 11,500/mt on aggressive long buying, but gave back some gains in the afternoon as longs took profit at higs. Finally, SHFE 1605 aluminum closed up RMB 150/mt at RMB 11,455/mt. Trading volumes were up 64,180 lots to 158,696 lots, and positions were up 1,028 to 224,098. The most active contract looks set to hover at highs in the near term.