Aerojet and NEC Collaborate to Explore Low Power Ion Propulsion Systems for Satellites

SACRAMENTO, Calif., June 14, 2010 – Aerojet, a GenCorp (NYSE: GY) company, announced today that it has signed an agreement with NEC Corporation (TSE:6701) to jointly supply HAYABUSA-derived ion propulsion systems for the U.S. and Japanese aerospace markets.

Aerojet, Solar Power, Inc. and SMUD Announce Completion of Six-Megawatt Solar Installation at Aerojets Sacramento Site

With the second phase complete, the project is one of the largest single-site industrial installations in the U.S. and a key element in Aerojet's enterprise-wide sustainability initiative.

Aerojet Celebrates Inaugural Launch of GPS Block IIF Satellite

SACRAMENTO, Calif., May 28, 2010 – Aerojet, a GenCorp (NYSE: GY) company, announced today that its engines contributed to last night's successful launch of the first Global Positioning System (GPS) Block IIF satellite. Aerojet will continue to provide propulsion throughout the life of the satellite.

Aerojet Celebrates the Delta Launch Vehicle's 50th Anniversary

SACRAMENTO, Calif., May 28, 2010 – Aerojet, a GenCorp (NYSE: GY) company, congratulates the United Launch Alliance and all of its industry partners on the 50th anniversary of the Delta rocket’s inaugural launch.

Aerojet Engines Position Shuttle Atlantis Docking to International Space Station

SACRAMENTO, Calif., May 17, 2010 – Aerojet, a GenCorp (NYSE: GY) company, announced today that its engines contributed to Space Shuttle Atlantis’s (STS-132) on-orbit operations and successful docking to the International Space Station (ISS). The shuttle lifted off from NASA’s Kennedy Space Center in Florida on May 14 and docked with the ISS on Sunday.