SIN卡与你的study permit无关,与你的work permit关联。
How do I renew my SIN card that begins with a '9'?
Social Insurance Numbers (SINs) that begin with a "9" are issued to temporary workers who are neither Canadian citizens nor permanent residents. These SINs are temporary and valid only until the expiry date printed on the front of the card.
If you are a holder of a SIN card that begins with a "9", it is important that you
renew your SIN card to
ensure that the expiry date always corresponds with the expiry date on your document from Citizenship and Immigration Canada authorizing you to work in Canada.
If you are an employer, learn more about your
responsibilities related to your employees' SINs.