As far as I'm aware, while Enermax used to run their own factories they closed them down fairly recently and have since been contracting out their products to CWT. But JonnyGuru pointed out that they're still thoroughly Enermax designed with Enermax sourced components rather than being based on a CWT platform so you probably wouldn't know it if you looked inside. http://www.jonnyguru.com/forums/show...1&postcount=15
I do consider them a good PSU brand though, in fact I'm still running a 525W Modu82+ myself, but a while back a lot of their higher end stuff seemed to be getting really expensive, and the cheaper stuff was often nothing special.
Compared to a few years ago though there is a lot of choice and competition for really good power supplies.