Copper futures settled down on Thursday as firmer US dollar made metal more expensive to holders of other currencies. Meanwhile investors were cautious ahead of the Federal Reserve's Jackson Hole symposium. Weak demand outlook from China also weighed on copper prices.
Copper futures for September delivery lost $0.0375 to settle at $3.7710 a pound on the Comex metals division of New York Mercantile Exchange. Copper on the London Metal Exchange was down by 1.09 percent at $8,359.50 a ton.