Northrop Grumman
Corporation today announced that it has extended its pending
exchange offer for all outstanding shares of common and preferred stock of
TRW Inc. from March 29, 2002, to April 12, 2002, at midnight EDT.

Approximately 2,111,116 shares of TRW common stock; 591 shares of
Cumulative Serial Preference Stock II, $4.40 Convertible Series 1; and
2,282 shares of Cumulative Serial Preference Stock II, $4.50 Convertible
Series 3 had been tendered to Northrop Grumman as of 5:00 p.m. EST on
March 28, 2002, none of which were tendered pursuant to notices of guaranteed
delivery.
The tendered shares are subject to validation by TRW’s transfer
agent.

Northrop Grumman Corporation is an $18 billion, global defense company
with its worldwide headquarters in Los Angeles.
Northrop Grumman provides
technologically advanced, innovative products, services and solutions in
defense and commercial electronics, systems integration, information
technology and nuclear and non-nuclear shipbuilding and systems.
With nearly
100,000 employees and operations in 44 states and 25 countries,
Northrop Grumman serves U.S. and international military, government and
commercial customers.

Northrop Grumman filed a registration statement on Form S-4
(File No. 333-83672) and a tender offer statement on Schedule TO with the
Securities and Exchange Commission on March 4, 2002 with respect to its offer
to exchange all outstanding shares of TRW stock for Northrop Grumman common
stock.
These documents, and any amendments or supplements thereto, contain
important information which should be read by TRW shareholders before making
any decision regarding the offer to exchange.
Copies of these documents are
available without charge at the Securities and Exchange Commission’s website
at www.sec.gov or upon request from D.F. King & Co., Inc., the information
agent for Northrop Grumman’s offer to exchange, at 800-755-7520.

The directors, certain executive officers and other employees and
representatives of Northrop Grumman may be deemed to be participants in the
solicitation of proxies of TRW shareholders in connection with shareholder
proposals relating to the 2002 Annual Meeting of TRW Shareholders and a
Special Meeting of TRW Shareholders to be held on April 24, 2002 and
April 22, 2002, respectively.
Northrop Grumman has filed preliminary
materials for these shareholder meetings which contain information regarding
such potential participants.
Northrop Grumman’s proxy materials contain
important information and should be read by TRW shareholders.
These proxy
materials and any amendments thereto may be obtained at no charge at the SEC’s
website at www.sec.gov as they become available.