Page 6 of the report spells out the dates on which these advance purchase agreements were signed between Canada and the various companies.
I've gone to Google and looked up when the American government signed the same advance purchase agreements. The Americans signed their first contract on March 27, 2020, and then another on May 21. The Americans were finishing all of their advance purchase agreements at the end of July, just as we were getting started.
Can anyone explain why we were so many months behind the Americans in signing these advance purchase agreements?