BlueFire Renewables Inc. (U.S.)
Valero Marketing and Supply Company (U.S.)
Alcogroup (Serbia)
Pannonia Bio (Hungary)
Cropenergies AG (Germany)
and DowDuPont (U.S.)
Archer Daniels Midland Company (U.S.)
BP PLC (U.K.)
Petrobras (Brazil)
Cristal Union (France)
Tereos (France)