copper prices

Mining giant Antofagasta reports a 15% rise in half-year profits as high copper prices offset higher production costs.

A rise in copper prices means it now costs the U.S. government 1.7 cents to make a penny coin. The head of the U.S.

Mint discussed a change in the composition of coins on Capitol Hill this week, but one lawmaker resurfaced another plan: scrap the penny altogether.

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Arizona leads the nation in copper production. These days demand from Asia is contributing to record-high copper prices.

Companies are trying to open new mines in Arizona despite opposition. Critics argue the mine will damage municipal water supplies and destroy scenic views.

Arizona leads the nation in copper production. These days, demand from Asia is contributing to record-high copper prices.

Companies are trying to open new mines in Arizona despite opposition. Critics argue the mine will damage municipal water supplies and destroy scenic views.