MDA's satellite subsystems support innovative communications technologies in space

Quebec, QC- MDA, a Maxar Technologies company (formerly MacDonald, Dettwiler and Associates Ltd.) (NYSE: MAXR; TSX: MAXR) announced today that it has signed a multi-million dollar contract withOHB System AG(OHB) to provide fine pointing for solar arrays and tracking antennas for theHeinrich Hertz communications satellite. MDA’s innovative subsystems have a high level of functional integration, which optimizes mass and volume, and provides the satellite with more significant cost savings. The satellite will employ MDA’s innovative subsystem to continuously position the solar arrays as well as the satellite’s pointing and tracking antennas.

The Heinrich Hertz satellite is a national communications satellite program for the German Space Agency, DLR, exploring and testing new space technologies to determine, among other things, how broadband can result in higher data speeds for mobile final users. It also carries a payload for military communications purposes. OHB System AG is the Prime Contractor.

"MDA is a trusted partner of OHB in our goal to meet our customers’ expectations. What is more, we had already contracted MDA for a very similar subsystem and had very good experience in terms of quality, flexibility and adherence to schedules," says Dieter Birreck, Heinrich Hertz Program Manager at OHB System.

“MDA enables leading-edge customers and partners to do remarkable work honing their innovations and delivering solutions to build a better world,” says Mike Greenley, group president of MDA. “Fueling economic growth through product exports worldwide on both GEO and LEO communications satellites is central to the future growth story of MDA.”

About MDA

MDA is an internationally recognized leader in space robotics, satellite antennas and subsystems, surveillance and intelligence systems, defense 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 visitwww.mdacorporation.com.

About Maxar Technologies

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, robotics, geospatial data and analytics. As a trusted partner, Maxar Technologies provides unmatched integrated capabilities, solutions and expertise to help customers anticipate and address their most complex mission-critical challenges with confidence. With more than 6,500 employees in over 31 locations, the Maxar Technologies portfolio of commercial space brands includes MDA, SSL, DigitalGlobe and Radiant Solutions. Every day, billions of people rely on Maxar Technologies to communicate, share information and data, and deliver insights that Build a Better World. For more information visitwww.maxar.com.

Forward-Looking Statements
This release contains forward-looking statements and information, which reflect the current view of Maxar Technologies Ltd. (the “Company”) with respect to future events and financial performance. The forward-looking statements in this regard include statements regarding the award of a contract. Any such forward-looking statements are based on the Company’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. The Company 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 associated with operating a satellite including in-orbit failures or impaired satellite performance; quality issues, failure of systems to meet performance requirements, potential for product liability, or the occurrence of defects in products or systems could result in lost revenue and harm to the Company’s reputation; failure of third parties and subcontractors; 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 and U.S. securities regulatory authorities, which are available online under the Company's SEDAR profile atwww.sedar.com, under the Company's EDGAR profile atwww.sec.gov, or on the Company's website atwww.maxar.com.