The deputy minister is Harpreet Kochhar. The person who signed off on this is the associate deputy minister, Scott Harris. If you're going to throw a bureaucrat under the bus by not having him respond, you should have the correct one.
I've had a good working relationship with the deputy minister. It's the associate deputy minister who's taking direction from your side to not disclose things properly. He put it in writing that he was not complying with requests from the committee for the production of documents.