I would agree with Mr. Agnew. The industry can certainly be broken down regionally across the country, but not necessarily in relation to exports. The breakdown tends to be by sector.
Eastern Canada, including Quebec and Ontario, has really strong players in electro-optical and infrared modules, as well as in software, system and subsystem design. A lot of maintenance, repair and overhaul is performed out east and out west. Ontario is home to combat vehicle manufacturers. It's important to keep in mind the other military activities that are based on both sides of the border.
Many defence companies have operations or sell products and services that can be deemed dual-use. Those goods can be subject to permits and very strict export requirements, as Mr. Agnew pointed out with respect to IT systems.