They have fulfilled a ten year cargo support contract to the I.S.S. and launch of various deep space scientific missions. Routinely supply launch vehicles in support of JAXA missions.
Lockheed Martin and Northrop Grumman are two potential partners mentioned in development forward from the ATD-X prototype, which some now reference as the Mitsubishi X-2 Shinshin. BAE may offer some contribution to this program, as yet unspecified.