It makes sense it is Chinese made. GS has strong connections with several factories in PRC and all Stern PCBs are fully manufactured in China. In fact they have been since the Data East days - not many people know this.

The DE boards have "Made in Hong Kong" printed on them - this was because American laws (at the time) prohibited USA companies from buying anything from PRC. The way around this was simply to have an office - or 'front' - in Hong Kong and because HK was British (at the time) - no problem. The parts were still manufactured in China and sold via a HK office.

Stern has been 60% Made in China since day one (my guess at 60% - it's probably higher)