US copper slips

Copper held in negative territory late Wednesday as the dollar bounced against the euro and the Federal Reserve cut its forecasts for US economic growth but offered no indication of further monetary policy support. In New York, the key September COMEX contract ended the session flat at $4.1070 per lb, but edged lower in after-hours trade after the Fed's downward growth revision.
Prices are down more than 10 percent from a record high of $10,190 set in mid-February. In other metals, aluminium closed up $8 on the day at $2,549 per tonne.