It is within the minister's discretion to issue a permit. There are specific prohibitions already included in the Export and Import Permits Act. For example, the automatic firearms country control list prohibits the Canadian government from authorizing an export permit of a prohibited weapon to a country that's not on the AFCCL. We have prohibitions in place with respect to economic sanctions, both under the United Nations Security Council and under the Special Economic Measures Act that would prohibit the minister from issuing a permit in those instances.
On October 17th, 2017. See this statement in context.