Aerojet Successfully Demonstrates Next Generation Solid Ramjet Fuel

SACRAMENTO, Calif., Aug. 10, 2010 – Aerojet, a GenCorp (NYSE: GY) company, announced today that it has successfully tested an advanced solid ramjet fuel in an engine ground test. The fuel is being developed to provide long-range, high-speed capability for the U.S. military and potentially for the future USAF/Navy Joint Dual Role Air Dominance Missile (JDRADM).

EPA Case Study Praises Aerojet’s Solar Array Partnership Signifies the Positive Impact Around the State

SACRAMENTO, Calif., Aug. 5, 2010 – Aerojet, a GenCorp (NYSE: GY) company, announced today that the Environmental Protection Agency (EPA) has released a 14-page study highlighting the company’s partnership with EPA, SMUD and Solar Power, Inc.

Aerojet's Successful Main Engine Injector Tests Provide Milestone for NASA's Orion Crew Exploration Vehicle - Testing confirms combustion stability and provides initial performance data

SACRAMENTO, Calif., Aug. 5, 2010 – Aerojet, a GenCorp (NYSE: GY) company, under contract to Lockheed Martin (NYSE: LMT), has successfully completed more than 20 injector tests for the 7500-pound thrust Orion main engine (OME) for NASA’s Orion crew exploration vehicle.

Aerojet’s Camden Facility Earns National Safety Council’s “Million Work-Hours Award”

SACRAMENTO, Calif., Aug. 3, 2010 – Aerojet, a GenCorp (NYSE: GY) company, announced today that its Camden, Ark. facility achieved one million man hours without a “Day Away From Work Injury or Illness” between July 7, 2009 and June 14, 2010.

Aerojet Ordnance Tennessee Receives AS9100 Certification

SACRAMENTO, Calif., July 27, 2010 – Aerojet, a GenCorp (NYSE: GY) company, announced today that its specialty metals facility, Aerojet Ordnance Tennessee (AOT), has received AS9100B certification.