▁northern ▁Mexico , ▁produced ▁ 9 8 , 5 0 3 ▁tons ▁of ▁co pper ▁in ▁ 2 0 0 7 . ▁It ▁is ▁among ▁the ▁world ' s ▁largest ▁co pper ▁mines ▁in ▁terms ▁of ▁res erves , ▁and ▁has ▁the ▁longest ▁remaining ▁mine ▁life ▁of ▁any ▁major ▁open - pit ▁co pper ▁mine ▁in ▁the ▁world , ▁based ▁on ▁current ▁production ▁levels . ▁ ▁La ▁Car idad ▁Mine , ▁located ▁in ▁northern ▁Mexico , ▁produced ▁ 1 2 4 , 9 7 2 ▁tons ▁of ▁co pper ▁in ▁ 2 0 0 7 . ▁ ▁References ▁ ▁External ▁links ▁ ▁http :// www . s ou thern co pper cor p . com / ▁ ▁http :// www . az central . com / bus iness / articles / 2 0 0 8 / 0 6 / 2 3 / 2 0 0 8 0 6 2 3 b iz - co pper 0 6 2 3 . html ▁ ▁http :// fin ance . google . com / fin ance ? q = N Y SE : PC U ▁ ▁http :// uk . re ut ers . com / article / rb ss Ind ust ry Material s Util ities News / id UK N 2 1 4 2 1 0 0 0 2 0 0 8 0 7 2 1 ▁ ▁http :// www . az star net . com / all head lines / 2 4 9 9 5 3 ▁ ▁Category : Comp an ies ▁listed