As a Crown corporation, the organization doesn't have the obligation to report to PSPC. What it does is that it prepares a corporate plan on an annual basis, which basically identifies the activities that it will undertake based on the totality of its budget.
They break down those activities in large buckets of activities, for lack of a better term, and that corporate plan is reviewed by the department in support of the Minister of Public Services and Procurement, to be able to ensure that the activities the Crown corporation is going to undertake are aligned with the general government direction. Based on that, the minister recommends the corporate plan for approval by Treasury Board.