- ABB
- AGRA
- Arkansas Eastman
- Barrick Gold Corp.
- Blue Circle Cement
- Canadian Waste
- Cement Lafarge
- Cementos Progresso
- CODELCO
- Co-Steel
- Eastman KODAK
- E.I. DuPont de Nemours
- Emtrol Corporation
- ENAMI
- Falconbridge, Ltd.
- General Motors
|
- Georgia Pacific Corporation
- Hatch Associates
- Holderbank
- Holnam
- INCO
- International Paper
- Kennecott
- Kvaerner Metals
- Molson Breweries
- Noranda
- Procedair Industries
- Royal Dutch Shell
- SNC-Lavalin
- Techint
- The Dow Chemical Company
- Union Carbide
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