The word "bankable" in "bankable feasibility study"... actually does have meaning.
The cost of borrowing appears to be very well contained within others cost estimates. It seems you're not the first to have ever considered it.
And, we'll see what that looks like in numbers when they do publish a bankable feasibility study, anyway...
So...
As far as the wild card that they may finance with off-take agreements instead of bank borrowing ? How are you factoring in that element of... something like routine... in what Chinese state owned companies have been doing in funding their development efforts ?