Wow this article clarifies things.http://findarticles.com/p/articles/mi_qa5342/is_200410/ai_n21359116/
"Tea leaves are picked and dried on-site in Brazil, then sent by boats and refrigerated containers to Pomona, where they are further dried, cut and bagged. Then, distributors carry the product to restaurants and supermarkets."
I really think it would be cool for them to play up the whole japanese style brazilian tea. On the Stash website they have one product "Brazilian Sincha" which explains quite clearly where the tea is from. However the regular yamamotoyama website doesn't mention much about Brazil.
Now what I would want to know is which teas are brazilian, which are japanese and which are mixed. I would also like to know their policy on old tea (selling last harvest). As for packaging it looks pretty good and they mention refrigeration in that article. Why all the interest in a cheap grocery tea? Well I would really like to try a fresh (not years old), higher grade brazillian tea made in japanese style. I'm actually more interested in this tea now that I found it is made in Brazil, because at prices offered it would have to be terrible if it was Japanese. However outsourcing to Brazil might make a decent tea at this pricepoint. Total speculation of course because I haven't tried any of their tea.