• Northrop Grumman First Quarter 2012 Financial Results to be Webcast Wednesday, April 25, 2012, at 11:30 a.m. ET

FALLS CHURCH, Va. – April 4, 2012 – Northrop Grumman Corporation (NYSE:NOC) will announce its first quarter 2012 financial results on Wednesday, April 25, 2012. The company's conference call will be held at 11:30 a.m. ET the same day.

Wes Bush, chairman, chief executive officer and president, and Jim Palmer, chief financial officer will review the financial results, and the conference call will be webcast live on Northrop Grumman's website at http://www.northropgrumman.com .

Replays of the call will be available on the Northrop Grumman website for a limited period of time. Presentations will be supplemented by a series of slides appearing on the company website. Listeners are encouraged to view these materials in conjunction with the call. The 2012 first quarter earnings release will be posted on the home page of the website.

Northrop Grumman is a leading global security company providing innovative systems, products and solutions in aerospace, electronics, information systems, and technical services to government and commercial customers worldwide. Please visit www.northropgrumman.com for more information.

  CONTACT: Randy Belote (Media)
         (703) 280-2720
         randy.belote@ngc.com
         
         Steve Movius (Investors)
         (703) 280-4575
         steve.movius@ngc.com