Freeport-Mcmoran Sierrita INC is a local Primary Copper business based in Green Valley, AZ.
This phone number has been independently verified as the best phone number by GetHuman users in Green Valley and around Pima County who called the phone number and gave us feedback. This month, 14 customers have verified this phone number.
Customers report that this number goes to voicemail 27% of the time.