From the DFS sheet:-
Providing an NPV of $410m and using the post IPO assumptions of ORD holding 15%-17.5% of the project, we see ORD?s NPV for the Laos Project to be $61m-$72m. Using a mid point, we have derived the project value to ORD of $66.5m or $0.14 per share.
My comments:- Funny that my calculations come out very similar to the DFS report hey ;)