Copper futures for September delivery dropped 2.3 cents, or 0.5 percent, to $4.455 a pound at 10:43 a.m. on the Comex in New York. Earlier, the price reached $4.4885, the highest for a most-active contract since July 19.
Before today, the metal dropped 3.9 percent since reaching a record $4.6575 on Feb. 15 amid weak Chinese demand.
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