Aerojet to Remanufacture Dual Thrust Rocket Motors Supporting the Standard Missile Program

Aerojet, a GenCorp Inc.
company, will provide full support as a Standard Missile-1 Full Service
teammate for Standard Missile Prime Contractor, Raytheon Company. Aerojet will
provide remanufactured MK56 Dual Thrust Rocket Motors as part of the SM-1 Full
Service Support Program.

Aerojet, the original equipment manufacturer of the MK56 DTRM, produced
more than 10,000 MK56 Rocket Motors and has remanufactured over 1300 MK56
motors. Final production of the MK56 ended in 1996. The production line,
tooling, and facilities remained active at Aerojet with M112 motor production
for the Raytheon missile program HAWK. The HAWK motor retained many
manufacturing similarities to the MK56 motor.

“We look forward to supporting Raytheon in the effort to maintain and
extend the service life of the SM-1 assets deployed around the world by our
allied nations,” said Peter Massey, director of Missile Defense at Aerojet.

The remanufacture of the MK56 rocket motor will be an integral part of the
Raytheon-led and managed SM-1 Full Service Support Program. The SM-1 is
expected to continue to provide air defense capabilities for many
international platforms for an additional 10 to 15 years.

Aerojet is a world-recognized aerospace and defense leader principally
serving the missile and space propulsion, and defense and armaments markets.
GenCorp Inc. is a technology-based manufacturer with leading positions in
aerospace and defense, pharmaceutical and automotive industries. For more
information, please visit http://www.aerojet.com and http://www.gencorp.com .