Summary Box: Copper rises on supply concerns

AP News
Posted: Jul 28, 2011 3:37 PM
Summary Box: Copper rises on supply concerns

COPPER SUPPLIES: Copper rose as a labor strike continued at the world's largest copper mine in Chile. If the strike is prolonged, it could create even tighter global supplies.

DEBT DEBATE: Other commodities were mixed as investors remain focused on the debate in Washington over how to avoid a U.S. debt default. The Treasury Department says the government won't have enough money to cover all its bills after Tuesday unless the country's borrowing limit is raised.

STORM CLOUDS: Oil prices rose slightly as traders waited to learn more about the possible impact of a tropical storm in the Gulf of Mexico.