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ASHLAND
CIRCA GROUP PTY LTD
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DIACEL CHEMICAL INDUSTRIES LTD
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ROYAL DSM
PPG CHEMICALS
GENOMATICA INC
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DUPONT
BASF
ARCHER DANIELS MIDLAND COMPANY
BIO -AMBE INC
VERTEC BIOSOLVENTS INC
FLORIDA CHEMICALS COMPANY
MYRIANT CORPORATION COMPANY
GEVO INC
SOLVAY SA
AKZO NOBEL
DOW CHEMICAL COMPANY
HUNTSMAN CORPORATION
CARGILL INC
CERMER OLEO GMBH & CO
LYONDELL BASELL INDUSTRIES