Copper for delivery in three months added 1 percent
Aluminum, zinc and lead advanced in London
Gold futures rose to a three-week high as concern that the global economy is faltering stoked bets that the Federal Reserve will keep U.S. interest rates low, driving the dollar down and boosting the metal’s allure. Silver futures for December delivery climbed 0.2 percent to $17.345 an ounce. Copper prices rose in London, pacing gains by industrial metals, as faster exports eased concern that economic growth will fade in China, the world’s biggest consumer.