Yes, international graduates can apply for Saskatchewan PNP, under the Saskatchewan Experience Category, particularly the Student sub-stream. To qualify, you need to have finished an accepted post-secondary program in Canada, have a valid Post-Graduation Work Permit (PGWP), and have a full-time job offer in Saskatchewan. This job should be in a field that's connected to what you studied. If you studied and worked in Saskatchewan, your chances of getting a nomination are better.