...LME base metals prices extended gains yesterday. LME aluminum prices opened at USD 2,170/mt, with the highest level and the lowest level at USD 2,230/mt and USD 2,160/mt, respectively, and finally ended at USD 2,217/mt, up USD 47/mt compared with the previous trading day, or up 2.2%. Total trading volumes reached 162,378 lots, and total positions were 715,147 lots, up 5,012 lots. LME aluminum inventories declined by 4,200 mt to 4,381,100 mt...