SHANGHAI, Apr. 28 (SMM) – SHFE 1507 aluminum contract fell to RMB 13,300/mt on Tuesday morning, and dropped further to RMB 13,280/mt in afternoon session. Prices rallied later to end at RMB 13,320/mt. Trading volumes totaled 52,922 lots, and positions were up 3,752 to 137,144. Technically, prices are expected to stage a rally, though.