Follow-through momentum provided US copper futures with an early boost on Wednesday, with surrounding strength in the precious metals and energy markets underpinning the advance. However, attention will turn to the Energy Information Administration's (EIA) weekly US petroleum stock data for further price direction, traders said.
Copper for September delivery was trading up 2.90 cents at $3.4575 a lb by 10:21 am EDT (1421 GMT) on the New York Mercantile Exchange's Comex division. The morning range ran from $3.3915 to $3.4845, the contract's loftiest level since August 4.