i'd think "used to". as mentioned above, now that Merida owns much of Specialized, i don't see why they would have one of their competitors build the frames.

Specialized did indeed at oome time build many of their frames at their own factory in the states. my 1997 M2 Stumpjumper was one. but i think those days are long over. they may do a few special frames, or maybe even some of their S-Works line, but most are probably built in asia. much like how Trek builds fewer models in their line-up in Waterloo these days.