For immediate release: May 13, 2008

MDA receives information solution contract with Boeing

Richmond, B.C. - MacDonald, Dettwiler and Associates Ltd. (TSX: MDA), a provider of essential information solutions, announced today that its Montreal operation has been awarded a $21 million USD contract by The Boeing Company (Boeing) for an information solution for the International Space Station (ISS).

MDA will provide two spare sets of S-band communication subsystems designed to provide critical voice and data links between astronauts on-board the ISS and Earth. This contract award by Boeing is part of an overall strategy to keep the ISS in operation through the year 2016 and beyond. This solution follows MDA's other mission critical solutions currently supporting the ISS, which includes most recently the Special Purpose Dexterous Manipulator (Dextre).

Dr. Marc Donato, vice president at MDA's Montreal's operation, stated, 'This contract demonstrates MDA Montreal's expertise in providing critical advanced technology solutions to our customers, and our continuing commitment to Boeing and NASA in support of the International Space Station throughout its extended life.'

About MDA

MDA provides advanced information solutions that capture and process vast amounts of data, produce essential information, and improve the decision making and operational performance of business and government organizations worldwide.

Focused on markets and customers with strong repeat business potential, MDA delivers a broad spectrum of information solutions, ranging from complex operational systems, to tailored information services, to electronic information products.

MDA employs more than 3,000 people in locations across the United States, the United Kingdom, and Canada. The Company's common shares trade on the Toronto Stock Exchange under the symbol TSX:MDA.

Related Websites:
www.mdacorporation.com

Forward-Looking Statements

This release contains forward-looking statements and information, which reflect the current view of MacDonald, Dettwiler and Associates Ltd. with respect to future events and financial performance. Any such forward-looking statements are subject to risks and uncertainties and MDA's actual results of operations could differ materially from historical results or current expectations. Additional information on these and other potential factors that could affect MDA's financial results are detailed in documents filed from time to time with the applicable Canadian securities regulatory authorities.

The Toronto Stock Exchange has neither approved nor disapproved the form or content of this release.



For more information, please contact:

Wendy Keyzer
MDA External Relations
Telephone: 604-231-2743
E-mail: wendy@mdacorporation.com