I buy all my turbos / wastegates / BOVs / Nitrous kits all from UK companies actually, so god knows where you got that idea.

Some of those companies by parts in from abroad, but given the lack of a uk turbo industry there isnt a homegrown alternative anyway that im aware of, feel free to recomend a turbo company that only use uk made parts if you want though and i'll look them up as im all for supporting our local economy wherever possible.