I'm not really sure. I did find www.chiswick.ca in Google, I think they may have what you’re looking for. You can also try http://www.winpak.com/en/products/3-3.htm. They're a Winnipeg company that makes food containers - though I don't see any tin-tied kraft bags in their vague product list. They don't retail their products but they may be able to direct you to a Canadian wholesaler.
Wedlock Paper Converters Ltd
Address : 2327 Stanfield Road, Mississauga, ON L4Y 1R6
Telephone : 905-277-9461
Manufacturer (printer and converter) for bags of many types and sizes, including lined kraft paper. I have purchased custom print and stock bags from them, and always found Wedlock reliable for quality and service.