A sizable spike in copper’s Comex value compared with other global exchanges has American traders acting with caution.

A scrap metal business in McHenry could face legal trouble after more than 1,400 pounds of copper communications wire was ...

Owners of a metal recycling company called GPD because they say Naugle and Arnold were bringing in a lot of copper.

China will strive to increase its copper ore reserves by 5 percent to 10 percent by 2027, and further improve the level of ...