
- Air Liquide
- Air Products
- BASF
- Bosch Group (Stuttgart, Germany)
- BP
- Cambridge Display Technology (Cambridge, U.K.)
- Dow Chemical
- Dow Corning
- DuPont
- G24i (Cardiff, U.K.)
- Hydro
- Kaneka Corp. (Osaka, Japan)
- Merck KGaA
- Plextronics (Pittsburgh)
- Praxair
- Renewable Energy Corp. (REC; Hovik, Norway)
- Sasol
- Schott (Mainz, Germany)
- Shin-Etsu
- Sued-Chemie
- Suntech Power (Jiangsu Province, China)
- Synthesis Energy Systems
- Umicore
- UOP
- Wacker
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