I have finally found this place as I was was told that they had a vast selections of vegan cakes. Yes, they have them but are the same that they sell in most of vegan restaurants in Chiang Mai and are more expensive. You can find most of the items in Rimping, Big C and other health stores in CM at cheaper prices. Maybe is good for beans, temphe, spices and tahini though.
Cons: meat, fish and dairy products, overpriced