Cobre del Mayo
Cobre del Mayo is a Mexican mining company that operates the Piedras Verdes mine in the northwestern state of Sonora, Mexico.
Piedras Verdes mine is the third largest copper mine in Mexico. It produces LME Grade A copper cathode and sells ore for concentrate to Kupari Metals.
Cobre del Mayo owns 40% of Kupari, a Luxembourg mining company that operates a flotation circuit plant, adjacent to Piedras Verdes mine.