From the article:
The Peoria-based heavy equipment manufacturer said in January that it was considering moving production of large wheel loaders and compactors to Decatur, Illinois
The bold word "Illinois" is mine but that's where Decatur is in this instance.
Caterpillar is also moving their world headquarters from Peoria, Illinois to Chicongo, Illinois. Who knows why? Makes no sense to this stock holder.
Chitown has better airports and air service.