MDA to provide additional direct access ground station solutions for DigitalGlobe's satellite constellation

Richmond, BC-MacDonald, Dettwiler and Associates Ltd. ("MDA" or the "Company")(TSX: MDA), a global communications and information company, today announced that it has been awarded two contracts with a total value of several million dollars fromDigitalGlobe Inc.to provide new ground station solutions to two international customers. The ground stations will receive and process imagery and data from DigitalGlobe’s satellite constellation, and are also configurable to receive and process data from the RADARSAT-2 Synthetic Aperture Radar satellite, enabling future integration of electro-optical and radar imagery capabilities.

MDA's proven design for mobile and fixed ground stations provides operators with local control, satellite data reception, and the option to process data in near real-time or send it to archive for future use. The ground stations maximize the advantages of MDA's modular multi-satellite ground station infrastructure and rapid upgrade capability and can be extended to support additional satellites.

Norman Hannaford, the general manager responsible for the ground station business said, “These contracts reinforce MDA’s position of delivering operational ground system solutions for the world’s most advanced remote sensing satellites.”

About MDA

MDAis a global communications and information company providing operational solutions to commercial and government organizations worldwide.

MDA's business is focused on markets and customers with strong repeat business potential, primarily in the Communications sector and the Surveillance and Intelligence sector. In addition, the Company conducts a significant amount of advanced technology development.

MDA's established global customer base is served by more than 4,800 employees operating from 11 locations in the United States, Canada, and internationally.

The Company's common shares trade on the Toronto Stock Exchange under the symbol "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. (“MDA” or the “Company”) with respect to future events and financial performance. The forward-looking statements in this regard include statements regarding the award of contracts. Any such forward-looking statements are based on MDA’s current expectations, estimates, projections and assumptions in light of its experience and its perception of historical trends. The factors and assumptions underlying the forward-looking statements in this release include contracts not being terminated. Any such forward-looking statements are subject to a number of risks and uncertainties that could cause actual results to differ materially from current expectations. MDA cautions readers that should certain risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary significantly from those expected. The risks that could cause actual results to differ from current expectations include, but are not limited to: failure of third parties and subcontractors; failure of systems to meet performance requirements; and failure to anticipate changes in technology, technical standards and offerings or compliance with the requisite standards.

For additional information with respect to certain of these risks or factors, plus additional risks or factors, reference should be made to the Company's continuous disclosure materials filed from time to time with Canadian securities regulatory authorities, which are available online under the Company's profile atwww.sedar.comor on the Company's website atwww.mdacorporation.com.

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