The United States has the resources necessary to compete with China for mastery over copper mining and refining.

Chalcopyrite leaching processes are at the forefront of hydrometallurgical techniques for copper extraction. The dissolution of chalcopyrite, a primary copper–iron sulphide mineral, involves intricate ...

The following is a list of the 10 biggest mining companies by trailing 12-month (TTM) revenue. 1 Some companies outside the ...