US copper futures ended up over 2 percent on Monday, buoyed by fresh signs of economic expansion in top metals consumer China, that restored market confidence and reinforced an improved global demand outlook for the industrial metal.
Copper for December delivery jumped 7.25 cents, or 2.1 percent, to settle at $3.4790 per lb on the COMEX metals division of the New York Mercantile Exchange. Range from $3.4130 to $3.4935. COMEX estimated final copper futures volume at 20,725 lots, below Friday's count of 27,506 lots. Open interest down 272 lots at 140,927 contracts as of September 10.