The Canadian Govt has signed an Agreement with Moderna. The vaccine - once approved - will be produced in the USA vaccine currently called ChAdOx1 nCoV-19, popularly known as the Oxford vaccine, is being developed by the British university in collaboration with pharmaceutical company AstraZeneca. Will be mass produced by Indian Company - The Serum Institute, the largest vaccine producer in the world.
Massachusetts based Moderna in also in phase 3 and has already arranged mass production of its vaccine should it meet trial targets laid out by US govt.