Perhaps anybody knows.
When UV unwrapping in Keyshot a 3d object and exporting the object as .obj will the UV coordinates then be written to the .obj file or not.
The short answer is yes, I was able to UV unwrap a box in KeyShot, Saved it out as an obj and imported in to Maya.
The UV faces came through in Maya and I was able to select each UV face and edit as needed.
I hope this helps.