Completely false, Tekin, or should I say, it's owners, have businesses in other areas of electronics, so all the design is their own, and I do beleive, a good part is manufactured 'in house', there may be a fact that some stuff is 'out-sourced' but more than likely, it is a PCB manufacturer, and maybe just so happens is used by Caslte Creations, but that is just guess work.
PM Tekin on here if you want a difinitive answer, I am sure Jim would be more than willing to answer it.