Guess we will have to wait until the first boxes with “Made in …” labels reach customers.
I, too, find it a bit odd too that they chose not to disclose the manufacturing partner, as transparency is so essential to building trust in any system that claims to be privacy friendly or secure. In my opinion they have a lot more to lose here than they have to gain, especially considering that a large fraction of their current audience is likely to err on the paranoid side if in doubt.