I can't remember right off my head but there is a place in Windsor that sells it. I use to go to Canada to get some of my meds and would stop in a LQS there that had all kinds of threads for LA machines and DSM. I have enough thread from there to last a life time, which it is doing. Right now I have switched to Glide but Aurfil is my next choice. I was just looking and this may be the place I went. There is also an online quilt shope and supply in Canada. Again I can seem to be able to get the links. I will try again.
here is the link for the online company:
https://www.theartisansgiftingcompany.com/
Here is t he other one:
https://www.quiltingconfections.com
I hope these help, now that I was able to get the links