MacDonald, Dettwiler and Associates Ltd. (“MDA” or the “Company”) (TSX: MDA), a global communications and information company, announced today that it has signed a contract amendment for CA$8.4 million with an undisclosed customer to provide multiple advanced technology solutions for a telecommunication satellite. MDA announced the original contract in September 2012.

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. In addition, the Company conducts a significant amount of advanced technology development.

MDA’s well-established global customer base is served by more than 4,500 employees operating from 11 offices located in the United States, Canada, and internationally.

The Company’s common shares trade under the symbol TSX:MDA.