Copper futures ended lower on Wednesday due to strong US currency after the minutes from the Federal Reserve's policy meeting said that the US Federal Reserve could begin asset tapering in 2021. However, worries over supply disruption from the Las Bampas copper mine in Peru and ongoing labour strikes in world’s top producer Chile limited losses in copper prices.
Copper futures for September delivery lost $0.0860 to settle at $4.12 a pound on the Comex metals division of New York Mercantile Exchange. Copper on the London Metal Exchange was down 2.22 percent at $9,042.50 a ton.