Automotive System Suppliers
Alcoa
AVL
BAE Systems
Ballard Power Systems
Caterpillar
Continental TEMIC
Cummins, Inc.
Delphi
Denso Corporation
Eaton Corporation
General Electric Co.
Robert Bosch
TEMIC Automotive Electric Motors
Visteon Corporation

Financial Institutions
AllianceBernstein LP
Ardsley Partners
Arsenal Capital
Bank of America Merrill Lynch
Bessemer Venture Partners
Blue Ridge Capital
Bright Path Capital Partners
Capital Group Research
Capital International
CityGroup
Colmobil, Ltd.
Credit Suisse
David Gelbaum
Deutsche Bank Asia AG
Endeavour Capital
Franklin Templeton Investments
Global Venture Investments
Goldman Sachs
Harpers International
Impala Asset Management LLC
Ivory Investment Management
Janus
J.P. Morgan
Jefferies & Company
Joho Capital, LLC
Legend Holdings Limited
Marathon Resource Investments
Marubeni Corporation
MFS Investment Management
Morgan Stanley
Santa Barbara Asset Management
Scout Capital
Select Equity Group
Soros Strategic Partners LP
T. Rowe Price
Third Point LLC
Trust Company of the West
UBS Global Asset Management
Valiant Capital Partners
Water Street Capital
Wellington Management
ZBI Ventures

Other
Andrews Kurth LLP
Argonne National Laboratory
California Air Resources Board
Copper Development Association
CRA International
Electric Power Research Institute
Exponent
Field Support Services
GE Global Research
ICCT
Idaho National Engineering and Environmental
    Laboratory
Miura Global Management
National Research Council Canada
Nickel Institute
Procter & Gamble
Ridgetop Research, LLC
SVP Japan Co.
Taiwan Industrial Technology Researc
    Institute (ITRI)
TRU Group
University of California, Davis
VTT Technical Research
US Department Of Energy

Oil Companies
BP America Production Company
Chevron Texaco Corporation
Exxon Mobil Chemical Co.
Nippon Oil (U.S.A.)
Nippon Shokubai Co.
Shell Oil
SK Corporation