How to get a new physical Social Insurance card (SIN) …
https://www.quora.com/How-do-you-get-a-new-physical-Social-Insurance-card-SIN-issued-if-you-are-no-longer-a-resident-of-Canada
Send your completed application form and original documents (photocopies are not accepted) to Service Canada, Social Insurance Registration Office, PO Box 7000, Bathurst, New Brunswick E2A 4T1, Canada. If you send your application by registered mail, they will return your document(s) in the same way. Note : They don’t issue plastic card nowadays.
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