The firm is also piloting a program in Peru to support smaller miners. It’s frustrating for big miners like MMG, who say third parties are making money off of copper earmarked for them.

Copper output in Peru, the world’s third-largest producer of the red metal, was virtually flat in February from the same month a year ago, data from the nation’s energy and mines ministry ...

Julia Torreblanca, the president of SNMPE, The National Society of Mining, Oil and Energy, has predicted that Peru's output of ...