My guess it's mostly due to regulations and labor / material costs in Finland. Moving a reactor really isn't easy, the things are made of tons of concrete, and

My guess it's mostly due to regulations and labor / material costs in Finland. Moving a reactor really isn't easy, the things are made of tons of concrete, and need a pretty huge foundation. That said, there probably is a market for portable reactors. However, I'm not sure how happy countries would be with importing a reactor made and filled in China :).