ZeaChem and Partners Awarded $40 million USDA Grant

Lakewood, Colo. – September 28, 2011 – ZeaChem Inc., a developer of biorefineries for the
conversion of renewable feedstocks into sustainable fuels and chemicals, today announced it has
been awarded part of a $40 million grant by the U.S. Department of Agriculture (USDA) for the
commercialization of advanced “drop-in” biofuels. ZeaChem is part of a consortium led by the
University of Washington and includes GreenWood Resources, Oregon State University,
Washington State University, the University of California, Davis, Evergreen State College and
the Agricultural Center for Excellence.

ZeaChem will lead R&D and demonstration trials for production of bio-based jet and diesel fuels
and bio-based gasoline at its 250,000 gallon per year (GPY) integrated demonstration
biorefinery, located at the Port of Morrow, near Boardman, Oregon. These products are
chemically identical to existing blend stocks produced in petroleum refineries today, thus
eliminating concerns over distribution infrastructure compatibility. The first volumes of biobased
jet and diesel fuels will be produced in test quantities in 2013 and bio-based gasoline will
follow in 2015.

“ZeaChem appreciates the USDA’s leadership in advancing the commercialization of cellulosic
biofuels,” said Jim Imbler, president and chief executive officer of ZeaChem. “This grant will
allow ZeaChem to further build out our economic and sustainable product platform beyond
ethanol utilizing cellulosic feedstocks. ZeaChem and its partners will commercialize advanced
“drop-in” biofuels, for commercial and military applications, throughout the Pacific Northwest
region.”

The award is part of the USDA’s Agriculture and Food Research Initiative (AFRI) Regional
Coordinated Agricultural Project (CAP), which seeks to establish regional systems for the
sustainable production of bioenergy and biobased products. Through the Regional CAP, the
USDA will facilitate the development of the necessary infrastructure across the entire supply
chain for advanced biofuels in the Pacific Northwest. The program seeks collaborative projects
with closely integrated research, extension, and education components.

Coordinated Agricultural Projects are multi-disciplinary, multi-million dollar projects focused on
five “challenge areas” that are a major part of the USDA’s research agenda. The Bioenergy area
supports the development of regional systems of bioenergy production that reduce dependence
on foreign oil; have net positive social, environmental, and rural economic impacts; and are
integrated with current agricultural systems.