SSL to provide Low Earth Orbit satellite

Palo Alto, CA- Space Systems/Loral(SSL), a leading provider ofcommercial satellites, today announced it was awarded a contract to provide a Low Earth Orbit (LEO) satellite to an undisclosed customer. In addition to building the satellite, SSL will also provide the launch and will operate the satellite on orbit.

“Our production of innovative small satellites is growing in both size and diversity,” saidJohn Celli, president of SSL.

SSL’s manufacturing facility for small satellite production provides lower cost and faster production time than has been typical for satellite manufacturing in the past. With this contract award SSL now has 21 LEO satellites under construction.

About SSL

SSL, a subsidiary of MDA, is a leading provider of commercial satellites with broad expertise to support satellite operators and innovative space related missions. The company designs and manufactures spacecraft for services such as direct-to-home television, video content distribution, broadband Internet, mobile communications, and Earth observation. As a Silicon Valley innovator for more than 50 years, SSL’s advanced product line also includes state-of-the-art small satellites, and sophisticated robotics and automation solutions for remote operations. For more information, visitwww.sslmda.com.

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.

MacDonald, Dettwiler and Associates Ltd.'s (MDA) common shares trade on the Toronto Stock Exchange under the symbol "MDA."

Related Websites
www.mdacorporation.com

Forward-Looking Statements
This news release contains forward-looking statements and information, which reflect the current view of MacDonald, Dettwiler and Associates Ltd. and its subsidiaries (collectively “MDA” or the “Company”) with respect to future events and financial performance. When used in this news release, the words “believes”, “expects”, “plans”, “may”, “will”, “would”, “could”, “should”, “anticipates”, “estimates”, “project”, “intend” or “outlook” or other variations of these words or other similar expressions are intended to identify forward-looking statements and information. Actual results may differ materially from the expectations expressed or implied in the forward-looking statements as a result of known and unknown risks and uncertainties. Known risks and uncertainties include but are not limited to: risks associated with operating satellites and providing satellite services, including satellite construction or launch delays, launch failures, in-orbit failures or impaired satellite performance; risks associated with satellite manufacturing, including competition, cyclicality of MDA’s end-user markets, contractual risks, creditworthiness of customers, performance of suppliers and management of MDA’s factory and personnel; risk associated with financial factors such as volatility in exchange rates, increases in interest rates, restrictions on access to capital, and swings in global financial markets; risks associated with domestic and foreign government regulation, including export controls and economic sanctions; and other risks, including litigation. The foregoing list of important factors is not exhaustive. The information contained in this news release reflects MDA’s beliefs, assumptions, intentions, plans and expectations as of the date of this news release. Except as required by law, MDA disclaims any obligation or undertaking to update or revise the information herein.

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.

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