Sundrop Fuels partners for biofuel facility

May 23, 2012, Longmont, CO – Sundrop Fuels, Inc., a drop-in advanced biofuels company, has
announced a partnership with technology and engineering supplier
ThyssenKrupp Uhde for what will be the nation's first bona fide
commercial "green gasoline" production facility.The company's inaugural
plant near Alexandria, Louisiana, will yield up to 50 million gallons of
renewable gasoline annually while also serving as proving ground for
Sundrop Fuels' proprietary biomass conversion technologies that will be
used for future large-scale facilities.

The collaboration follows signing of a comprehensive "Front End
Engineering and Licensing Agreement" between Sundrop Fuels and Uhde
Corporation of America, a unit of ThyssenKrupp USA Inc. More than 70
engineers from the two companies are now working together to complete
designs for the Sundrop Fuels plant, which should begin construction
late this year.

Sundrop Fuels will convert sustainable forest residues and thinnings as
feedstock combined with natural gas into bio-based "green gasoline" by
using a commercially-proven production path that integrates
gasification, gas purification, methanol synthesis and a
methanol-to-gasoline (MTG) process. The clean, affordable biofuel is
ready for immediate use in today's combustion engines and will be
delivered to the marketplace via the nation's existing fuels
distribution infrastructure. The company's first production plant will
have a capacity of about 3,500 barrels of renewable gasoline per day.

As a key element to its first facility, Sundrop Fuels will deploy
ThyssenKrupp Uhde's High Temperature Winkler (HTW) gasification process,
coupled with other well-established technologies for gas cleanup,
methanol synthesis, and the MTG conversion.

Within the plant, Sundrop Fuels will demonstrate its proprietary process
for biomass conversion incorporating the company's patented RP
Reactor(TM), an ultrahigh-temperature technology that generates the
highest fuel energy yield per ton of biomass of any biofuels process
available. Sundrop Fuels plans to follow its first facility with
larger-scale fuels plants producing nearly 300 million gallons annually,
with a combined production capacity of more than one billion gallons by
2020 — a significant percentage of the cellulosic advanced biofuels goal
set by the nation's Renewable Fuels Standard (RFS).

"Sundrop Fuels' partnership with ThyssenKrupp Uhde accelerates our
ability to contribute to the nation's renewable fuels goals while moving
toward mass-scale green gasoline factories that will improve the
environment, create jobs and further our nation's energy independence,"
said Sundrop Fuels Chief Executive Officer Wayne Simmons. "This effort
represents the best possible use of today's technology and natural
resources to meet tomorrow's growing need for affordable, cleanly
produced transportation fuel."

ThyssenKrupp Uhde is a world leader in coal and biomass gasification.
Its proprietary HTW fluidized-bed and PRENFLO entrained-flow
gasification technologies convert almost any feedstock including biomass
into a wide variety of products including fuels and industrial chemicals.

Significant backing for Sundrop Fuels comes from Chesapeake Energy
Corporation, the largest producer of natural gas in northern
Louisiana's Haynesville Shale Field and second-largest producer in the
nation. Chesapeake invested $155 million in Sundrop Fuels in mid-2011.

The company's investors also include two of the world's premier venture
capital firms, Oak Investment Partners and Kleiner Perkins Caulfield &
Byers.

About Sundrop Fuels, Inc.

Sundrop Fuels, Inc. is a gasification-based drop-in advanced
biofuels company based in Longmont, Colorado. Backing for
Sundrop Fuels comes from its strategic partner, Chesapeake Energy
Corporation, and by two of the world's premier venture firms, Oak
Investment Partners and Kleiner Perkins Caulfield & Byers. Sundrop
Fuels plans to build and operate large-scale biorefineries each
generating more than 200 million gallons of drop-in transportation
biofuels annually. For more information visit
www.sundropfuels.com.

About ThyssenKrupp Uhde

ThyssenKrupp Uhde has a workforce of more than 5,600 employees
worldwide and is a company in the Plant Technology business area of the
ThyssenKrupp Group. The company's activities focus on the engineering
and construction of chemical and other industrial plants in the
following fields: fertilisers; electrolysis; gas technologies; oil, coal
and biomass gasification; refining technologies; organic intermediates,
polymers and synthetic fibers; and also coke plant and high-pressure
technologies. We also provide our customers with professional services
and comprehensive solutions in all areas of industrial plant operation.
Details are available at
www.uhde.eu .

Uhde Corporation of America is a North American Engineering &
Contracting Company and part of ThyssenKrupp.

USA Inc. The companies' activities focus on the planning and
realization of industrial plants in the United States and Canada. Uhde
Corporation of America is a business partner of ThyssenKrupp Uhde GmbH
and is headquartered in Bridgeville (Pittsburgh), Pennsylvania. The
company has further offices in Houston/Texas, Cleveland/ Ohio and
Calgary/ Canada.