MDA to deliver mission-critical SAR information for maritime surveillance

Richmond, BC- MDA, a Maxar Technologies company (formerly MacDonald, Dettwiler and Associates Ltd.), (NYSE: MAXR) (TSX: MAXR), today announced that it has signed a multi-million dollar contract with theSouth African National Space Agency(SANSA) for a one-year maritime surveillance program that includes the delivery of synthetic aperture radar (SAR) data products from the RADARSAT-2 satellite, using MDA’s global network of ground receiving stations. The contract includes two additional option years.

As part of the Presidential programOperation Phakisa, SANSA has been tasked to acquire SAR imagery with the aim of enhancing the monitoring and protection of South Africa’s coastal regions and oceans. Initiatives under this program are considered crucial in accelerating the delivery of South Africa’s development priorities. Operations Phakisa estimates that the approximate total contribution of coastal resources (marine fishing, port and harbour development, attractive lifestyles, recreation and tourism) is 35% of South Africa’s GDP. The information provided by the SAR data contributes to ensuring improved governance and enables the securing of South African resources, such as theNational Ocean and Coastal Information System.

The South African Exclusive Economic Zone (EEZ) is roughly 1.5 million square km and forms part of the economic resources and trade routes of South Africa. The Council for Scientific and Industrial Research (CSIR), South Africa’s central and premier scientific research and development organization will create the ship and oil detection products for SANSA to share with various government agencies.

“RADARSAT-2 provides a unique method of cost-effectively and accurately monitoring very large areas and providing information in near real-time, demonstrating immediate value to users,” said Mike Greenley, group president of MDA. “MDA has decades of remote sensing expertise to help our customers anticipate and address their most complex mission-critical challenges with confidence.”

Under this contract, using RADARSAT-2 information, MDA will provide systematic weekly broad-area surveillance over South Africa’s EEZ and on-demand high-resolution image acquisitions. RADARSAT-2 Ocean Surveillance Mode is well suited for broad area maritime surveillance, and is unique as a single scene covers over 250,000 ㎢ and allows for the detection of ships and oil within the coastal and offshore regions regardless of light or weather condition.

About MDA

MDA is an internationally recognized leader in space robotics, space sensors, satellite payloads, 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, Halifax and the United Kingdom. MDA is a Maxar Technologies company (TSX: MAXR) (NYSE: MAXR). For more information visitwww.mdacorporation.com.

About SANSA

The South African National Space Agency was established in 2010 through South African National Space Agency Act (Act No. 36 of 2008). SANSA aims to leverage the benefits of space science and technology for socio-economic development, environmental conservation and natural resource management. The consolidation of South Africa’s primary space entities under one banner has brought together a significant range of competencies in satellite applications, satellite engineering and research in space science and technology to play an important role in the country's future space initiatives. The space agency is also committed to delivering quality services to the international space sector and growing its Earth observation data management capability. Although South Africa's involvement in Earth Observation dates back to 1978. SANSA hosts an impressive archive containing more than 150 terabytes of remote sensing data, dating back to 1972. The aim of this data collection is to help improve the livelihoods of communities across Africa through the delivery of space-derived services and products, high-impact collaborative R&D and active partnerships.

About Maxar Technologies

As a global leader of advanced space technology solutions, Maxar Technologies (formerly MacDonald, Dettwiler and Associates) is at the nexus of the new space economy, developing and sustaining the infrastructure and delivering the information, services, systems that unlock the promise of space for commercial and government markets. As a trusted partner, Maxar Technologies provides vertically-integrated capabilities and expertise including satellites, Earth imagery, robotics, geospatial data and analytics to help customers anticipate and address their most complex mission-critical challenges with confidence. With more than 6,500 employees in over 30 global locations, the Maxar Technologies portfolio of commercial space brands includes MDA, SSL, DigitalGlobe and Radiant Solutions. Every day, billions of people rely on Maxar to communicate, share information and data, and deliver insights that Build a Better World. Maxar trades on the Toronto Stock Exchange and New York Stock Exchange as MAXR. For more information visitwww.maxar.com.

Forward-Looking Statements

Certain statements and other information included in this release constitute "forward-looking information" or "forward-looking statements" (collectively, "forward-looking statements") under applicable securities laws. Statements including words such as "may", "will", "could", "should", "would", "plan", "potential", "intend", "anticipate", "believe", "estimate" or "expect" and other words, terms and phrases of similar meaning are often intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Forward-looking statements involve estimates, expectations, projections, goals, forecasts, assumptions, risks and uncertainties, as well as other statements referring to or including forward-looking information included in this release.

Forward-looking statements are subject to various risks and uncertainties which could cause actual results to differ materially from the anticipated results or expectations expressed in this release. As a result, although management of the Company believes that the expectations and assumptions on which such forward-looking statements are based are reasonable, undue reliance should not be placed on the forward-looking statements because the Company can give no assurance that they will prove to be correct. The risks that could cause actual results to differ materially from current expectations include, but are not limited to, the risk factors and other disclosures about the Company and its business included in 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.govor on the Company's website atwww.maxar.com.

The forward-looking statements contained in this release are expressly qualified in their entirety by the foregoing cautionary statements. All such forward-looking statements are based upon data available as of the date of this release or other specified date and speak only as of such date. The Company disclaims any intention or obligation to update or revise any forward-looking statements in this release as a result of new information or future events, except as may be required under applicable securities legislation.