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- AK Steel Corporation
- Ameristeel, Inc.
- ArcelorMittal Steel USA - Cleveland
- Charter Steel - Cleveland
- Corning, Inc.
- EMI Plastics Equipment
- First Energy Corporation
- Ford Motor Company
- General Motors Corporation
- Honda of America
Manufacturing, Inc.
- K/B Compost
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- Millennium Inorganic Chemicals, Inc.
-
Oregon
Steel Mills
- PET Processors, LLC
- Ross Environmental Services, Inc.
- Subaru
- The Timken Company
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