LOCKHEED MARTIN ANNOUNCES COMPLETION OF AMENDED SYTEX ACQUISITION

BETHESDA, MD, March 31, 2005

Lockheed Martin Corporation [NYSE: LMT] today announced it has completed the purchase of The SYTEX Group, Inc. (TSGI) after the parties amended their previous agreement excluding the smallest TSGI business, MacAulay Brown, Inc. As anticipated, a decision to amend the agreement was made in recognition of possible conflicts between some of the work MacAulay Brown is performing for its customers with that of Lockheed Martin. Lockheed Martin and TSGI concluded that the customers of MacAulay Brown would be best served if it remained as a complete business independent of Lockheed Martin. MacAulay Brown will continue to be owned by the previous owners of TSGI.

In accordance with the amended agreement, Lockheed Martin has agreed to pay net consideration of $440 million after taking into consideration $13 million of net cash being acquired. As previously stated, the transaction is expected to be immediately accretive to earnings per share.

LOCKHEED MARTIN SAFE HARBOR STATEMENT: Statements in this press release, including the statements relating to projected future financial performance, are considered forward-looking statements under the federal securities laws. Sometimes these statements will contain words such as "anticipates," "expects," "plans," "projects," "estimates," "outlook," "forecast," "guidance," "assumes," and other similar words. These statements are not guarantees of the Corporation's future performance and are subject to risks, uncertainties and other important factors that could cause the Corporation's actual performance or achievements to be materially different from those the Corporation may project.

The Corporation's actual results will likely be different from those projected due to the inherent nature of projections and may be better or worse than projected. Given these uncertainties, you should not rely on forward-looking statements. Forward-looking statements also represent the Corporation's estimates and assumptions only as of the date that they were made. The Corporation expressly disclaims a duty to provide updates to forward-looking statements, and the estimates and assumptions associated with them, after the date of this press release to reflect the occurrence of subsequent events, changed circumstances or changes in the Corporation's expectations.

In addition to the factors set forth in the Corporation's 2003 Form 10-K and quarterly reports filed on Form 10-Q with the Securities and Exchange Commission (www.sec.gov), the following factors could affect the Corporation's forward-looking statements: the ability to obtain or the timing of obtaining future government awards; the availability of government funding and customer requirements both domestically and internationally; changes in government or customer priorities due to program reviews or revisions to strategic objectives (including changes in priorities in response to terrorist threats or to improve homeland security); the competitive environment; economic business and political conditions domestically and internationally; program performance; the timing and customer acceptance of product deliveries; performance issues with key suppliers and subcontractors; customer and other regulatory reaction to the proposed acquisition and the outcome of contingencies (including completion of any acquisitions and divestitures, litigation and environmental remediation efforts). These are only some of the numerous factors that may affect the forward-looking statements contained in this press release.

Contact: Lockheed Martin Corporation: Jeff Adams (301) 897-6308;
 e-mail Jeffery.adams@lmco.com