Northrop Grumman Corporation and TRW Inc. today
announced that the Registration Statement on Form S-4 filed by Northrop
Grumman with the Securities and Exchange Commission in connection with their
pending shareholder meetings and merger transaction is effective. The
Registration Statement contains the joint proxy statement/prospectus relating
to the proposed acquisition of TRW by Northrop Grumman.

The companies said that their respective prospectus and proxy statement
mailings would commence Nov. 5.

Northrop Grumman Corporation is a $17 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
approximately 96,000 employees and operations in 44 states and 25 countries,
Northrop Grumman serves U.S. and international military, government and
commercial customers.

TRW provides advanced-technology products and services for the automotive,
space & electronics, and systems markets. The company’s news releases are
available through TRW’s corporate Web site www.trw.com .

Northrop Grumman Corporation filed a registration statement on Form S-4
(File No. 333-83672) with the Securities and Exchange Commission on March 4,
2002 that has been amended to include a joint proxy statement/prospectus
relating to the proposed merger of Northrop Grumman and TRW Inc. The
directors, certain executive officers and other employees and representatives
of Northrop Grumman and TRW Inc. may be deemed to be participants in the
solicitation of proxies for the shareholders meeting relating to the proposed
merger. The joint proxy statement/prospectus contains important information
regarding such potential participants and other important matters which should
be read by Northrop Grumman and TRW shareholders before making any decisions
regarding the merger. Copies of joint proxy statement/prospectus, and any
amendments or supplements thereto, may be obtained without charge at the SEC’s
website at www.sec.gov as they become available.