Copper closed the trading week on a stronger footing on Friday, touching its highest in more than two weeks as evidence of strengthening Chinese demand gave values a firm boost. In New York, the COMEX July contract climbed 6.90 cents, or 1.7 percent, to settle at $4.1215 per lb.
Volumes remained light. About 36,000 lots traded in New York, about a third below the 30-day norm, according to preliminary data from Thomson Reuters.