Where are King Super Analogue LP's pressed?

A few months back, I ordered a King Super Analogue LP which was clearly pressed in Japan. Recently I ordered a few more and was surprised to see that they were all made in U.S.A. Not a big deal, I want the recordings and they sound good to me. But I'm curious, were the King re-issues pressed in both countries? Some in Japan, some U.S.? Is there any noticeable difference in quality? Tks.

John