It is a strange way of seeing if there is interest (I couldn't find anything on their actual website), so if they really are doing something for non-Americans, I'm not sure how they were going to do it (like through an agent in certain countries, or directly from America).
The official product page on the Robosen website, with heaps of info and images, to be released in November 2022.
(the price for the trailer from the site (only to America) is us$750... but they are currently selling the Optimus cab for us$1000, which keeps going up, as it was originally released for us$700)