hydrogenics.

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actransit .airproducts. HET is now partnering with leading companies to commercialize
hydrogen technology for industrial use, transportation and stationary power
applications.
"The research and development conducted by METI in the environmental and
health sciences is highly complementary to the existing work Alion does with
the EPA," said Alion Chairman and CEO Bahman Atefi.com.

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S.boeing., Alion Science and Technology
announced today that it has acquired ManTech Environmental Technology, Inc.
For more information, call 877.771.

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com) continues its role as the prime
source for the supply of natural gas-based distributed hydrogen generation
technology for hydrogen refueling applications.
HET cooperated with Air Products to construct the first natural gas-based
hydrogen generator for demonstration within a distributed hydrogen fueling
station in the United States.
HET will assemble and test a hydrogen generator for The Boeing Company in
2005 (http://www.S.

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(HET) (http: //www.
HET will supply its proprietary Methane Steam Reformer (SMR) hydrogen
generator to be integrated into a hydrogen energy station that will be built
by ChevronTexaco Hydrogen Company for the Alameda-Contra Costa Transit
District (http://www. The HET hydrogen generator was selected following field tests conducted
in 2004 at the ChevronTexaco Montebello Technology Center. Since 1998, HET has delivered over 20 fuel processors to
clients located throughout the world and has gained unparalleled experience in
the design, fabrication and operation of shop fabricated, distributed hydrogen
generators .

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, Harvest Energy Technology,
Inc.
HET will supply its proprietary high pressure SMR fuel processor to
Hydrogenics Corporation (http://www.

About Harvest Energy Technology , Inc. Purchase to Help Technology Solutions Provider Expand Environmental
and Chemical /Biological Homeland Defense Capabilities

MCLEAN, Va.6252 or visit Alion online at
http: //www.

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org/environment) at their Seminary facility in
Oakland, California. Air Products
(http: //www.

Alion Acquires ManTech Environmental Technology Inc.

(METI), an environmental and life sciences research and development company.

About Alion
Alion Science and Technology is an employee-owned research and development
company providing technology services to the Department of Defense, other
government agencies, and commercial customers.

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Harvest Energy Technology Inc. Provides the Core Technology for Natural Gas-Based Hydrogen Refueling Demonstration Projects in 2005

com) under contract to
ChevronTexaco for testing in mid-2005.html).alionscience.

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SUN VALLEY, Calif . The fueling station, provided by Air Products
under cooperative agreement with the U. Department of Energy (DOE), is
located in Las Vegas, NV and was dedicated in November 2002.com/assocproducts /energy/compact_hyd.
HET supplies fuel processing technology for hydrogen infrastructure
applications .
METI conducts research and performs support services in environmental and
life sciences for the Environmental Protection Agency (EPA), the National
Institutes of Health (NIH), the Department of Defense (DoD), the Department of
Homeland Security, the Department of Energy and other agencies and
organizations. Based in McLean, Virginia, Alion supports our
customers' needs at major offices , customer sites and laboratories worldwide.

This press release contains information about management's view of Alion's
future expectations, plans and prospects that constitute forward-looking
statements for purposes of the safe harbor provisions under The Private
Securities Litigation Reform Act of 1995.

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The station is scheduled for opening in the fall of
2005.
The DOE project will be located by Air Products at Penn State University and
is scheduled to be operational in late 2005. The
Boeing Company proprietary hydrogen generator is a forward looking technology
that can offer significant economic benefits for refinery and centralized
hydrogen generation applications .

"This strategic
acquisition will allow us to expand our services to the Department of Defense
as well as civilian agencies and increase our capabilities in the health
sciences and in the chemical/biological defense counterterrorism arenas.

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harvest-technology.com) recently contracted HET to provide the fuel
processor as part of a next generation hydrogen generator and fueling station . Actual results may differ
materially from those indicated by these forward-looking statements as a
result of a variety of risk factors and uncertainties discussed in documents
periodically filed by Alion with the SEC.

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"
METI, currently headquartered in Research Triangle Park, NC, has staff
located in four cities throughout the U. The company will operate as the
Life and Environmental Technology Division, part of Alion's Technology
Solutions Group. Building on almost 70 years of
experience , Alion employee-owners provide expertise in defense operations;
modeling and simulation; information technology; wireless communication;
industrial technology solutions; chemical, biological and explosive science;
and nuclear engineering. Due to such uncertainties and
risks, readers are cautioned not to place undue reliance on such forward-
looking statements, which speak only as of the date hereof.