Could very well be.
What could also be the case is that TNS is their (TS) main seller for Europe and the US and they made a pre-existing deal with TNS that they are the only ones that are allowed to deliver to those continents? Just spitballing here though.
I know of a custom group, Xionart, that is doing a gauntlet as well, though there aresome clear differences in the design. You might give them a look on FB?