OFF-topic:
Laterite is already processed.. its just expensive as *SH#T* so to speak..
http://www.intec.com.au/uploaded_files/document_uploads/Nickel_Laterite_Processing_-_Background_Document.pdf
Usually requires calcination or massive acid usage.. which are feasible currently assuming your mining costs are extremely low.. but sulphide can be competitive at higher mine costs.
