ATK (Alliant Techsystems), has been awarded a $13 million contract that expands its presence
on future Space Shuttle missions. Under the contract awarded by the United
Space Alliance (USA), ATK will begin a 28-month development and qualification
program to build and deliver Booster Separation Motors (BSM) for the Space
Shuttle program. ATK already builds the Reusable Solid Rocket Motors (RSRM)
for the Space Shuttle.

Mike Kahn, vice president, Space Programs, said ATK will manufacture the
BSMs at its facility in Promontory, Utah, where the RSRMs are produced.

“ATK’s state-of-the art facilities and our demonstrated rocket motor
expertise allow us to modernize and improve the BSM design while ensuring a
reliable production base for future Space Shuttle missions,” said Kahn

The contract qualifies ATK as an alternative supplier for BSM motors that
separate the boosters from the Shuttle’s liquid fuel tank after the RSRMs
complete their two-minute burn. Eight BSMs are attached to each booster.
There are four on the nose cone and four on the aft-skirt.

ATK is a $2.2 billion aerospace and defense company with strong positions
in propulsion, composite structures, munitions, precision capabilities, and
civil and sporting ammunition. The company, which is headquartered in Edina,
Minn., employs approximately 12,200 people and has three business groups:
Precision Systems, Aerospace, and Ammunition and Related Products. ATK news
and information can be found on the Internet at www.atk.com .

Certain information discussed in this press release regarding ATK’s
ability to improve the BSM design and ensure a reliable production base for
future Space Shuttle missions may constitute forward-looking statements as
defined in the Private Securities Litigation Reform Act of 1995. Although ATK
believes that the expectations reflected in such forward-looking statements
are based on reasonable assumptions, it can give no assurance that its
expectations will be achieved. Forward-looking information is subject to
certain risks, trends and uncertainties that could cause actual results to
differ materially from those projected. Among those factors are: unforeseen
delays in NASA’s Space Shuttle and other programs, changes in governmental
spending and budgetary policies, economic conditions, equity market returns,
the company’s competitive environment, the timing of awards and contracts, the
outcome of contingencies, including litigation and environmental remediation,
program performance, and sales projections. ATK undertakes no obligation to
update any forward-looking statements. For further information on factors that
could impact ATK, and statements contained herein, reference should be made to
ATK’s filings with the Securities and Exchange Commission, including quarterly
reports on Form 10-Q, current reports on Form 8-K and annual reports on Form
10-K.