Satellite Will Provide Information Supporting Deployed Troops

ATK will provide the spacecraft bus systems to Goodrich, who as the satellite prime contractor will integrate it with their payload. The bus design is based on ATK Space System’s Responsive Space Modular Bus (RSMB) designed to meet the needs of the ORS office. “The integrated satellite will provide intelligence, surveillance and reconnaissance to satisfy an urgent and compelling need for the Combatant Commander,” stated Tom Wilson, Vice President of Systems, Thermal and Services for ATK Space Systems. “With this satellite bus, ATK continues to supply our customers with cost effective ISR satellite buses similar to Earth Observer-1 (EO-1), and the soon to be launched TacSat-3.” ORS Sat-1 is planned for launch in 2010. It leverages capabilities and technologies from Goodrich ISR Systems Division’s space and airborne imaging technologies.

“It’s an honor to be selected for this program as it truly highlights the innovative work our team has done to develop the next generation of affordable satellite systems,” added Wilson. “This system dramatically reduces cost, risk and schedule, capturing the essence of responsive space.”

The fully capable Responsive Space Modular Bus provides precision pointing, power and thermal management, orbital maneuvering and payload support functionality. RSMB represents the next generation of small spacecraft buses from ATK, building upon the legacy of flight successes. In addition to producing the bus, ATK will play a critical role in mission analysis payload and launch vehicle integration and space vehicle operations.

ATK is a premier aerospace and defense company with more than 17,000 employees in 21 states and approximately $4.6 billion in revenue. News and information can be found on the Internet at http://www.atk.com.

Certain information discussed in this press release constitutes 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: assumptions related to the exercise of contract options; changes in governmental spending, budgetary policies and product sourcing strategies; the company’s competitive environment; the terms and timing of awards and contracts; and economic conditions. ATK undertakes no obligation to update any forward-looking statements. For further information on factors that could impact ATK, and statements contained herein, please refer to ATK’s most recent Annual Report on Form 10-K and any subsequent quarterly reports on Form 10-Q and current reports on Form 8-K filed with the U.S. Securities and Exchange Commission.