Summary Box: Copper, industrial metals hold gains; wheat jump as Russia drought hurts crops

Summary Box: Copper, industrial metals hold gains

COPPER SURGE: Copper prices hit their highest point of the month because of expected growth in China and signs demand is strong.

RUSSIAN PAIN BOOSTS WHEAT: Russia’s extreme drought, the worst in 130 years, has destroyed 20 percent of the country’s grain crop. Russia is the world’s No. 3 wheat exporter.

BUT NOT FOR LONG?: One analyst says grains prices should turn lower soon because there is plenty of wheat and corn available. Many expect a bumper U.S. crop this year.