The early DeFevers were built in multiple yards in Taiwan depending on the model. Some models were built in multiple yards. Recent boats have all been built in mainland
China. However, the on site production manager from Taiwan went to China to oversee the building of Art's designs and is still around for getting unusual
parts. Art himself is still around in
San Diego and involved with the
current builds.
If you want information on a specific model, there is a defevercruisers website and owners group with lots more information than I can provide. There is a forum with owners of just about every model made who can answer detailed questions.
Regards, Bob