Your question was answered correctly on another forum, there is no need to get the same answer here. There is no 'green tea' tree, and I believe yours were Ficus or some other type, certainly tropical, but I can't find the thread now. Please believe what you were told as that person knew what they were doing.

Hi again - forget the last post (confused you with other newbie). Your tree does look like a Chinese elm, but either it's been grown in odd conditions, or what I suspect is that yours are species not normally seen here and therefore unfamiliar to most of us on these forums. But if it seems to be tropical and has been grown that way, then do your best to let it continue. There are many types that are native to the far east that just haven't been introduced here yet for whatever reason.

larke,
Thanx for your equivocal comments. However, I would still like to know what it is.