Cleveland Strip, Columbus, Delta, Middletown, Monroe, Porter, Rome, Spartan & Taylor-ISO-14001
Cleveland Strip, Columbus, Delta, Middletown, Monroe, Porter, Rome, Spartan & Taylor-ISO-45001
TWB Antioch, Canada, Glasgow & Monroe-ISO-14001
TWB Antioch, Canada, Glasgow & Monroe-ISO-45001
Worthington Samuel Coil Processing Cleveland & Twinsburg-ISO-14001