Agco with engines from Iseki could be built in Japan or China. Usally in Japan.
Same engines as Massey and Agco in CUT's I own an Agco and have very pleased with it.
Sactovalley
I own a ST-30x. I have put on 60 hrs in the year that I have owned it. I am very happy with this tractor. I use a 60" bush hog , a 60 " box blade and a 60" tiller. It has a bushhog FEL. I use from 3/4 to 1 gallon per hr. I lose traction before I lose HP. The dealer has been very helpfull fixing...