Both companies also refiled a joint voluntary notice to the Committee on Foreign Investment in the U.S. in an effort to provide CFIUS more time to complete its assessment of the pending merger, MDA said Wednesday.
CFIUS will begin a 30-day evaluation period upon receipt of the notice.
DigitalGlobe seeks to keep its Westminster headquarters and operate as a separate division of MDAs operating subsidiary SSL MDA Holdings upon closure of the deal.
MDA aims to ensure the incorporation of the parent of DigitalGlobe in the U.S. by 2019 as part of a strategy to provide communications and information technology services for classified space programs at federal agencies such as NASA and the Defense Department.
In October, MDA appointed new board of directors and senior executives in support of the U.S. Access Plan.
Both companies expect to complete the merger in the second quarter of calendar year 2017 or shortly thereafter.