Richmond, B.C. – MacDonald, Dettwiler and Associates Ltd. (TSX: MDA), a provider of essential information solutions, announced today that it has signed three contract amendments with the Canadian Space Agency totaling $10.4 Million (CAD), for the Design Phase of the RADARSAT Constellation Mission. The amendments serve to initiate the procurement of parts and equipment needed for the Build Phase, which will require a lengthy period of time to complete, and include tasks to add mission functionality.

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.

The Company’s common shares trade on the Toronto Stock Exchange under the symbol TSX:MDA.

Related Websites: www.mdacorporation.com