Tony Frazier has been appointed president of Radiant Solutions. Mr. Frazier previously served as senior vice president of Services at DigitalGlobe. Don Schaefer, who previously served as president of MDA Information Systems, has been appointed chief strategy officer of Radiant Solutions.

"Together, Tony and Don in their new roles will position Radiant Solutions as the leading provider of insights and intelligence for the geospatial markets," said Mr. Lance.

In addition, three members of the DigitalGlobe Board of Directors, Howell M. Estes III, Roger Mason, Jr. and Nick S. Cyprus, have been appointed to the MDA Board of Directors.

To learn more about today's news, please visit www.mdacorporation.com/winningtogether.

Forward-Looking Statements

This release contains forward-looking statements and information, which reflect the current view of the Company with respect to future events, financial performance and operational capabilities. The forward-looking statements in this regard include statements as to management's expectations with respect to: the benefits of the transaction and strategic and integration opportunities; the Company's plans, objectives, expectations and intentions; expectations for sales growth, synergies, earnings and performance; the timing of the change in MDA's ticker symbol on the New York and Toronto Stock Exchanges; shareholder value; and other statements that are not historical facts.

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.  Any such forward-looking statements are subject to various risks and uncertainties which could cause actual results and experience to differ materially from the anticipated results or expectations expressed in this press release. Additional information concerning these risk factors can be found in the Company's filings with Canadian securities regulatory authorities, which are available online under the Company's profile at www.sedar.com, the Company's filings with the United States Securities and Exchange Commission, or on the Company's website at www.mdacorporation.com, and in DigitalGlobe's filings with the SEC, including Item 1A of DigitalGlobe's Annual Report on Form 10-K for the year ended December 31, 2016.

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

ABOUT MDA

MDA is 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 15 locations in the United States, Canada, and internationally. The Company's common shares trade on the Toronto Stock Exchange under the symbol TSX:MDA. For more information, visit www.mdacorporation.com

ABOUT SSL MDA HOLDINGS, INC.

SSL MDA Holdings, Inc. is a wholly owned subsidiary of MacDonald, Dettwiler and Associates Ltd. and serves as the operating company for all MDA businesses. SSL MDA Holdings is headquartered in San Francisco, California.

ABOUT DIGITALGLOBE

DigitalGlobe is a leading global provider of high-resolution Earth-imagery products and services sourced from our own advanced satellite constellation and third-party providers. Our imagery solutions support a wide variety of users in defense and intelligence, civil agencies, mapping and analysis, environmental monitoring, oil and gas exploration, infrastructure management, Internet portals, and navigation technology. Each day users depend on us to better understand our changing planet in order to save lives, resources and time.

CONTACTS

Investor relations: Marissa Poratto, MDA, (604) 331-2044, mporatto@mdalimited.ca
Media relations (Canada): Wendy Keyzer, MDA, (604) 231-2743, wendy@mdacorporation.com
Media relations (United States): Sheila Ennis, Abernathy MacGregor, (415) 926-7961, sbe@abmac.com

SOURCE MacDonald, Dettwiler and Associates Ltd.