The PO My understanding is that bought deals come together very quickly, in less than a week. There is a reason for this: to preclude pers with early knowledge of a deal from benefitting as suggested in some posts. I suspect that when Sue explains the PO after the offering closes, she will say that the offer was presented to her by the syndicate with a short fuze attached, and she decided to accept, for reasons that she will make clear.
The underwriters generally are not permitted to buy the units for their own accounts under the base offer (different for the overallotment). They make their money by way of commission, in this case, 6% of the cash value of the units sold plus 6% broker compensation warrants, and 15% overallotment shares and warrants, which are exercisable up to 30 day after the deal closes. The terms are given in the Shelf Supplement that is available on SEDAR. They seem a bit generous IMO.
The Supplement also provides more detail on how the funds will be used. Pretty much what was said in the Shelf Prospectus.