The truth is that the USA is not a scooter market to begin with. Although Kymco does have a nice slice of the market pie for scooters (and maybe ATV's) in the states, it does not have a market share for motorcycles. So frankly it's not worth the effort to open a US market for the parts.
That being said, it is the age of the internet...so depending on shipping and handling charges you might be able to order directly from them. I have to admit there are a few nice things there.