Most of the wafer cookies I've seen are made in Europe. The "Euro" Gussen wafers are manufactured by a Thai company named Eurofood ([...] I've consumed a lot of these as I live in Thailand. I've compared these to a very similar Loacker wafer from Italy; I actually prefer the Gussen by taste, however the quality of ingredients is likely higher with the Loacker. I cringe at the price these Gussen are selling for in the U.S. If you find European made wafers at the same price, I would recommend getting the real thing.
To me the larger sized 80g(2.8oz) Euro Gussen wafer tastes better than the tiny 22g(.78oz) ones.