Northrop Grumman Pension Program

The Pension Program refers to certain individual plans which were amended to incorporate a cash balance feature.These amended plans are referred to as the "historical plans" and are listed below.

• Northrop Grumman Pension Plans Summary of Material Modifications (SMM) December 2007
• Ingalls Shipbuilding, Inc. Salaried Employees Retirement Plan
• Litton Industries, Inc. Retirement Plan
• Newport News Shipbuilding, Inc. Retirement Plan
• Northrop Grumman Norden Systems Employee Retirement Plan
• Northrop Grumman Norden Systems Represented Employees Retirement Plan
• Northrop Grumman Electronic Systems Pension Plan
• Northrop Grumman Electronic Systems — Space Division Salaried Employee's Pension Plan (Aerojet)
• Northrop Grumman Electronic Systems — Space Division Union Employee's Pension Plan (Aerojet)
• Northrop Grumman Pension Plan
• Northrop Grumman Retirement Value Plan
• TRW Salaried Pension Plan

Electronic Systems Pension Plan for Union Represented Employees
Ingalls Hourly Retirement Plan
Newport News Shipbuilding and Dry Dock Company

• Northrop Grumman Newport News Shipbuilding and Dry Dock Company Retirement Plans Summary of Material Modifications (SMM) December 2007