Hmmm....I think Shu Uemura is a Japanesse brand. I guess it's possible they could be made in China. But I wouldn't bid on anything coming from China though. Sorry I'm not much help.
they are pretty cheap in asia though, I bought like 4 from dutyfree in taiwan like 2 years ago (to qualify for GWP at the airport), then sold them on ebay for a small profit. They cost me like less than $20USD in dutyfree.
Didn't think there'd be too much profit in counterfeiting them..
Considering that Shu is an asian brand - Japanese to be exact and they are WIDELY available in asia at cheaper prices it shouldn't be surprising or alarming that they sell from an ebayer in HK. I bought two of these babies at the duty free shop in HK and it was like 16usd each. How much is the ebayer selling for? as long as it's not dirty cheap you should be fine.
Btw there is a big difference between Hong Kong, Taiwan and China they are not one in the same.