ULAN BATOR -(Dow Jones)- The Mongolian government expects the Oyu Tolgoi mining project to cost about US$5 billion, mining minister Dashdorj Zorigt said Monday. Of that amount, US$1 billion has been invested, he said.

A feasibility study which will provide the general framework for the project for at least the next five to 10 years is being carried out, he said, adding it is scheduled to be completed soon.