Copper futures ended up on Tuesday due to higher demand, even as the markets are cautiously awaiting the US Federal Reserve's Jackson Hole symposium at the end of the week for hints at when it may taper its monetary stimulus. A weaker US dollar further supported copper prices’ uptrend.
Copper futures for September delivery gained $0.0210 to settle at $4.2580 a pound on the Comex metals division of New York Mercantile Exchange. Copper on the London Metal Exchange was up 1.11 percent at $9,376 a ton.