Member Companies:
- Alcoa Inc.
- Cargill
- Chrysler Group LLC
- Delphi Corporation
- Dow Chemical Co.
- Dow Corning Corporation
- Eaton Corporation
- Edward C. Levy Co.
- Enbridge Energy, Limited Partnership
- Ford Motor Company
- General Motors LLC
- Gerdau Macsteel
- Marathon Petroleum Corporation
- Martin Marietta Magnesia Specialties, Inc.
- Metal Technologies, Inc.
- Praxair, Inc.
- U. S. Steel Corporation