This was the same type conversation not that many years ago in regards to pollen. Pollen supplement was many times made with real pollen, yet nobody seemed to know where the pollen was coming from. It was divulged after some internet chatter and a few arm twists, that pollen was indeed coming from China. And although it was a long story with many twists, I for one tested this foreign pollen and found among other things, high levels of fluvalinate and DDT.
So what about wax foundation? Where does all the wax come from? We might know who produces it, but where does the raw product come from? Do they market or clearly state where it comes from?
We have a plastic knockoff copy of peirco being sold by some vendors with it being made in China. And pollen, royal jelly, and about most bee equipment being supplied by China. I know I am contacted almost weekly by foreign companies wanted me to sell their stuff.
Perhaps like the pollen issues from a few years back, we would better off knowing where the wax comes from, and care a bit less on who manufacturers it.
Just something to think about.