Our experience building a cat in
Thailand has been very poor. Poor experience, knowledge, productivity and availability of good materials and
equipment. You probably would end up importing a significant proportion of your key materials and
equipment, and then being subject to high
import duties, and expect "surprises" during the
import process.
Very debatable whether it is actually any cheaper in the end.
Sorry if that is not what you wanted to hear, but do your homework and due diligence carefully, would be my
advice.