Montreal, QC - MDA, a business unit of Maxar Technologies (formerly MacDonald, Dettwiler and Associates Ltd.) (NYSE: MAXR; TSX: MAXR) announced today that it has signed a contract valued at approximately CA$4 million with Airbus for design studies dedicated to the optical data relay payload of the third SpaceDataHighway satellite. During this phase, MDA will define the preliminary design of the EDRS-D optical data relay payload. MDA will assess advanced technology, and define innovative solutions to equip the EDRS-D optical data relay payload with enhanced capacity, security, and flexibility.

The EDRS-D payload will increase the speed and availability of highly secure and high data-rate communications from and to Earth observation satellites, manned or unmanned aircrafts, in addition to providing in-orbit connectivity to other existing geostationary relay satellites of the SpaceDataHighway, also known as the European Data Relay System (EDRS), at distances of up to 75,000 km. These new Laser Communication Terminals (LCT) will be manufactured by Tesat Spacecom.

As of 2019, the EDRS-D node will move to the final two phases of build and delivery and will expand the SpaceDataHighway by being positioned over the Asia-Pacific region.

The current SpaceDataHighway system was developed through a public-private partnership (PPP) between the European Space Agency (ESA) and Airbus. Each day, it can transfer up to 40 terabytes of data acquired by observation satellites, manned or unmanned aircrafts, at a rate of 1.8 Gbit/s.

MDA previously announced contract awards for communication subsystems for EDRS-A, the SpaceDataHighway’s first communication node, which entered operational service in November 2016, and the second node EDRS-C, which is planned for launch at the end of 2018.

About MDA

MDA is an internationally recognized leader in space robotics, satellite antennas and subsystems, surveillance and intelligence systems, defence and maritime systems, and geospatial radar imagery. MDA’s extensive space expertise and heritage translates into mission-critical defence and commercial applications that include multi-platform command, control and surveillance systems, aeronautical information systems, land administration systems and terrestrial robotics. MDA is also a leading supplier of actionable mission-critical information and insights derived from multiple data sources. Founded in 1969, MDA is recognized as one of Canada’s most successful technology ventures with locations in Richmond, Ottawa, Brampton, Montreal and Halifax. MDA is a Maxar Technologies company (TSX: MAXR; NYSE: MAXR). For more information, visit www.mdacorporation.com.

About Maxar

Maxar Technologies (formerly MacDonald, Dettwiler and Associates) is a leading global provider of advanced space technology solutions for commercial and government markets including satellites, Earth imagery, geospatial data and analytics. As a trusted partner, Maxar Technologies provides unmatched end-to-end advanced systems capabilities and integrated solutions expertise to help our customers anticipate and address their most complex mission critical challenges with confidence. With more than 6,500 employees in over 21 locations, the Maxar Technologies portfolio of commercial space brands includes: SSL, MDA, DigitalGlobe, and Radiant Solutions. Every day millions of people rely on Maxar Technologies to communicate, share information and data, and deliver insights that empower a better world. Maxar trades on the Toronto Stock Exchange and New York Stock Exchange as MAXR. For more information visit www.maxar.com.

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 MDA receiving a contract for work related to a satellite payload. 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 the contract not being terminated and the ability to reach final agreement on the subsequent contractual terms and conditions. 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: risks inherent with performance on fixed price contracts, particularly the ability to contain cost overruns and schedule delays, 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; 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, or failure to maintain technological advances and offer new products to retain customers and market position.

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 at www.sedar.com or on the Company's website at www.mdacorporation.com.