Coldwater Customer Service Center
420 N. Willowbrook Rd.
Local (517) 279-1300
Serving customers in Branch, Hillsdale, St. Joseph, Calhoun and Kalamazoo Counties in Michigan, and the Indiana counties of Steuben and LaGrange.
Coopersville Customer Service Center
7403 State Rd.
Local (616) 837-7366
Serving customers in Ottawa, Muskegon, Kent, Newago, and Allegan counties in Michigan.
Fenton Customer Service Center
7119 Old 23
Local (810) 750-7101
Morenci Customer Service Center and Corporate Offices
9155 Weston Rd.
Local (517) 458-7107
Morenci E-mail: firstname.lastname@example.org
Serving customers in Lenawee, Monroe, Hillsdale, Washtenaw and Jackson Counties in Michigan, and the Ohio Counties of Lucas, Fulton, and Williams.
Stockbridge Customer Service Center
13400 S. M-52
Local (517) 851-7577
Serving customers in Jackson, Washtenaw, Eaton, Calhoun, Ingham, and Livingston Counties in Michigan.
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