I know Doug Proper and Beau Hannam have recommended https://www.sfinternational.co.in/ . They are located in India and seem to push to sell larger quantities (50-100 and up). I suspect they are one of the supplier for Philadelphia Luthier Supplies, I have ordered from them before and I am happy with what I got (they sell in smaller quantities for a fair price).

I’ve also heard plenty on mentions of Christie Song the “Bone Lady”. Her email is christie@chrislintrading.com.

I don’t know of any Canadian suppliers, so if you’ll order from abroad make sure to make yourself aware of shipping regulations since we are talking about a product with animal origin.

Great, thanks for the info Vinicius!